CN208962214U - Bottle embryo with two sections of linear type embryo bodies - Google Patents
Bottle embryo with two sections of linear type embryo bodies Download PDFInfo
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- CN208962214U CN208962214U CN201821124096.2U CN201821124096U CN208962214U CN 208962214 U CN208962214 U CN 208962214U CN 201821124096 U CN201821124096 U CN 201821124096U CN 208962214 U CN208962214 U CN 208962214U
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Abstract
The utility model relates to the processing technologies of packing plastic bottle, it is desirable to provide a kind of bottle embryo with two sections of linear type embryo bodies.The bottle embryo is integrally formed, including bottle preform mouth, transitional region, bottle embryo body and bottle embryo bottom；Bottle embryo body is by upper section linear type bottle embryo body, lower section linear type bottle embryo body and is located in the middle body changeover portion and collectively constitutes, and bottle embryo is integrally in bullet shape, realizes transition between middle and lower sections linear type bottle embryo body and the circular arc at bottle embryo bottom in tangent mode；The axial cross section of two sections of linear type bottle embryo bodies is in two straight lines and using the angle of each self-forming as draft angle, and with arc transition.The utility model can control the distribution situation of body material in the fabrication process, guarantee certain section of wall thickness and bottle arrangement performance on bottle.Because the second segment diameter of bottle embryo body becomes smaller, so that the maximum gauge at bottle embryo bottom also becomes smaller, compared with common one section of linear type bottle embryo structure, bottle embryo bottom can save material, and the material of saving depends on the diameter proportion of two sections of bottle embryo bodies.
Description
Technical field
The utility model is the processing technology about packing plastic bottle, in particular to a kind of with two sections of linear type embryo bodies
Bottle embryo.
Background technique
The processing of packing plastic bottle is typically all first to be molded into bottle embryo with injection molding machine, then be blow molded into bottle embryo by bottle blowing machine
Type.Bottle embryo is usually all made of bottleneck, transitional region, bottle embryo body and bottle embryo bottom.In the processing of existing packing plastic bottle, conventional bottle
The bottle embryo body of embryo be substantially it is straight, section in a slightly inclination angle straight line (inclination angle within 1 °, as draft angle),
Upper and lower diameter difference very little (see attached drawing 1).
But the bottle embryo of the structure be used to blow stretch smaller, bottle or more diameter difference biggish bottle when
There is significant limitations.For PET bottle, it is easy when blowing bottle in bottle shoulder or bottom of bottle accumulation PET material
Material.If it is desired to only thickening by adjustment blowing technology by a certain region wall thickness on body to meet certain performances, rather than infusing
The modeling stage is just adjusted bottle embryo, only with conventional bottle embryonic knob structure is processing purpose difficult to realize in the case where grammes per square metre is not added
's.
Utility model content
The technical problems to be solved in the utility model is to overcome deficiency in the prior art, is provided a kind of straight with two sections
The bottle embryo of line style embryo body.
In order to solve the above technical problems, the solution of the utility model is:
A kind of bottle embryo with two sections of linear type embryo bodies is provided, be it is integrally formed with injection molding manner, from top to bottom successively
Including bottle preform mouth, transitional region, bottle embryo body and bottle embryo bottom；The bottle embryo body is by upper section linear type bottle embryo body, lower section linear type bottle
It embryo body and is located in the middle embryo body changeover portion and collectively constitutes, bottle embryo is integrally in bullet shape, middle and lower sections linear type bottle embryo body
Transition is realized in tangent mode between the circular arc at bottle embryo bottom；The axial cross section of two sections of linear type bottle embryo bodies is in two straight lines
And using the angle of each self-forming as draft angle, with arc transition between two sections of linear type bottle embryo bodies.
In the utility model, the ratio between average radial size of upper section linear type bottle embryo body and lower section linear type bottle embryo body is 1:
0.95~1: 0.45.
In the utility model, the wall-thickness ratio of upper section linear type bottle embryo body and lower section linear type bottle embryo body is 1: 0.8~1:
Between 1.2.
In the utility model, it is assumed that the average radial of upper section linear type bottle embryo body and lower section linear type bottle embryo body with a thickness of
T1, the radial thickness at bottle embryo bottom is T2, then T2∶T1It is 0.6~0.9: 1.
In the utility model, the axial cross section of the embryo body changeover portion is arc-shaped in two, radius be R0.5mm~
R50mm。
In the utility model, the bottle embryo is to be molded the plastic bottle preform to be formed with PET material.
The realization principle of the utility model:
Firstly the need of explanation, linear type bottle embryo body described in the utility model or arc-shaped bottle embryo bottom refer to: along bottle embryo
Symmetrical central axes carry out cutting after, bottle embryo shows as rectilinear form on section, and bottle embryo bottom shows as circular arc on section
Shape.
The utility model is suitable for becoming the bottle embryo blow molding of injection molding into the plastic bottle preform for meeting design requirement, special needle
It, can be under the premise of not increasing grammes per square metre to the specific region of body to smaller, the upper and lower biggish bottle-type of diameter difference is stretched
(lower section linear type bottle embryo body) increases wall thickness.Identical as conventional bottle embryo, the bottle embryo of the utility model also includes bottle preform mouth, transition
Region, bottle embryo body and bottle embryo bottom.The difference is that the bottle embryo status of the utility model is two sections, upper section and transitional region phase
Connection, the tangent connection of circular arc of lower section and bottle embryo bottom, two sections of each included draft angles of linear type bottle embryo body.The diameter of two sections of bottle embryo bodies
Ratio should be consistent with the diameter proportion up and down of final products, and the wall thickness of two sections of bottle embryo bodies keeps identical or close.Two sections of bottle embryo bodies
Between changeover portion height depend on the region height that needs to thicken on bottle, can be calculated by draw ratio corresponding in bottle embryo
Position.
Bottle embryo design in the prior art only has one section of linear type bottle embryo body, and upper and lower diameter is not much different, two sides straight line
Slightly fixture is to form draft angle.But for upper and lower diameter differs biggish PET bottle type, when stretching smaller, material
It is easy to be deposited in bottle shoulder or bottom, this bottle embryo structure is easier to cause plastics on body to be unevenly distributed, can not accomplish
Certain section of region on body is thickened in the case where not increasing grammes per square metre.
For blow molding process, the place closer from fluorescent tube under close wall thickness, temperature is higher at the position when heating, on the contrary
Temperature more far away is lower.And the lower local material of bottle embryo temperature is less susceptible to stretch when blowing bottle.The utility model is by bottle embryo
Status is at two sections, and because bottle embryo body second segment is remoter than first segment with a distance from fluorescent tube, the material temperature of second segment compares first segment when heating
It is low, so stretch when second segment be not easy to be stretched, material will stay in corresponding bottle region, to ensure that the region
Wall thickness.
Compared with prior art, the utility model has the beneficial effects that
1, it is designed by the bottle embryo structure of innovation, the distribution situation of body material can be controlled in the fabrication process, guaranteed
Certain section of wall thickness on bottle, to guarantee the structural behaviour of bottle.
2, because the second segment diameter of bottle embryo body becomes smaller, so that the maximum gauge at bottle embryo bottom also becomes smaller, with common one section of straight line
Type bottle embryo structure is compared, and bottle embryo bottom can save material, and the material of saving depends on the diameter proportion of two sections of bottle embryo bodies.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of common bottle embryo in the prior art.
Fig. 2 is the structural schematic diagram of bottle embryo in the utility model.
Fig. 3 is bottle embryo bottom (dotted portion in figure) and the utility model bottle embryo bottom (solid line portion in figure of conventional bottle embryonic knob structure
Point) comparison diagram.
Fig. 4 is that fluorescent tube heats schematic diagram when bottle embryo is processed.
Appended drawing reference in figure are as follows: 1 bottle preform mouth；2 transitional regions；3 bottle embryo bodies；4 bottle embryo bottoms；31 upper section linear type bottle embryos
Body；32 lower section linear type bottle embryo bodies；33 embryo body changeover portions.
Specific embodiment
The utility model is described in further detail with specific embodiment with reference to the accompanying drawing:
As shown in Fig. 2, being integrally formed with injection molding manner with the bottle embryo of two sections of linear type bodies in the utility model
PET plastic bottle embryo.It include successively from top to bottom bottle preform mouth 1, transitional region 2, bottle embryo body 3 and bottle embryo bottom 4, bottle embryo body 3 is by upper section
It linear type bottle embryo body 31, lower section linear type bottle embryo body 32 and is located in the middle embryo body changeover portion 33 and collectively constitutes, bottle embryo is integrally in
Bullet shape realizes transition between middle and lower sections linear type bottle embryo body 32 and the circular arc at bottle embryo bottom 4 in tangent mode；Two sections
The axial cross section of linear type bottle embryo body is in two straight lines and using the angle of each self-forming as draft angle, two sections of linear type bottle embryos
With arc transition between body, the arc radius is between R 0.5mm~R50mm.
The ratio between average radial size of upper section linear type bottle embryo body 31 and lower section linear type bottle embryo body 32 is 1: 0.95~1:
0.45, the wall-thickness ratio of upper section linear type bottle embryo body and lower section linear type bottle embryo body is (two sections of bottle embryos between 1: 0.8~1: 1.2
The wall thickness of body is identical or close), the height of embryo body changeover portion 33 depends on the region height for needing to stay material on bottle, passes through stretching
Than calculating the position in corresponding bottle embryo.
Bottle embryo bottom 4 corresponds to bottle bottom, because bottle embryo bottom 4 is substantially all after blowing bottle is deposited in bottle bottom, and the portion
Divide the booster action demand of not resistance to deformation, and expect that excessively it will cause wastes, so to reduce the use at bottle embryo bottom 4 to the greatest extent
Material.Because 32 diameter of lower section linear type bottle embryo body becomes smaller, so that the diameter at bottle embryo bottom 4 is than in traditional handicraft in the utility model
There is the base diameter of one section of linear type bottle embryo body to want small, it is possible to reduce base material.Assuming that upper section linear type bottle embryo body 31 is under
The average radial of section linear type bottle embryo body 32 is with a thickness of T1, the radial thickness at bottle embryo bottom 4 is T2, then T2∶T1It is 0.6~0.9: 1.
Fig. 3 is the comparison diagram of one section of linear type bottle embryo bottom and the utility model bottle embryo bottom 4 in routine techniques, wherein dotted line
For one section of linear type bottle embryo bottom, solid line is the circular arc bottle embryo bottom 4 of the utility model.As can be seen from the figure the utility model
4 to one sections of bottle embryo bottom linear type bottle embryo bottom radial dimension is smaller, and so as to save base material, the material of saving is depended on
The diameter proportion of two sections of bottle embryo bodies.
The place closer from fluorescent tube under the blow molding process stage, identical wall thickness, temperature is higher at the position when heating, on the contrary
Temperature more far away is lower (as shown in Figure 4).The lower local material of bottle embryo temperature is less susceptible to stretch when blowing bottle.This is practical new
The region for needing to increase wall thickness on the corresponding bottle of type lower section linear type bottle embryo body 32, because lower section linear type bottle embryo body 32 is from fluorescent tube
Distance is remoter than upper section linear type bottle embryo body 31, and the material temperature of lower section linear type bottle embryo body 32 is than upper section linear type bottle embryo when heating
Body 31 it is low, while the wall ratio lower section linear type bottle embryo body 32 at bottle embryo bottom 4 is small, so stretching Shi Huixian from upper section linear type bottle
Material is drawn at embryo body 31 and bottle embryo bottom 4, and lower section linear type bottle embryo body 32 is not easy to be stretched, and plastic material will stay in corresponding lower section
32 region of linear type bottle embryo body, to ensure that in contrast the wall thickness in the region has thickening effects.
Using the bottle embryo structure of innovative design of the present invention, diameter up and down is produced by blow molding process and differs biggish PET bottle
When, it can guarantee the wall thickness of certain privileged site bottle embryo body on bottle, to guarantee bottle by the distribution of material on control body
The mechanical requirements of resistance to compression and resistance to negative pressure.The bottle embryo for the common shape that compares simultaneously is easier when producing bottle with the bottle embryo.Blow
Bottle machine is by heating bottle embryo, after softening bottle embryo, by blowing come bottle processed.The distribution and bottle embryo different zones of bottle body wall thickness
Heating it is related.But the variation of bottle embryo body temp be after all it is limited, blow the suitable temperature of bottle at 80 degree to 130 degree
Between.The bottle embryo structure of the utility model, in addition to that can also be influenced by the difference of diameter on the basis of temperature controlled
The thickness of bottle after type, so being more advantageous to the production of bottle.
Finally it should be noted that listed above is only specific embodiment of the utility model.Obviously, this is practical new
Type is not limited to above embodiments, can also there is many variations.Those skilled in the art can be from disclosed by the utility model
All deformations for directly exporting or associating in content, are considered as the protection scope of the utility model.
Claims (6)
1. a kind of bottle embryo with two sections of linear type embryo bodies is integrally formed with injection molding manner, from top to bottom successively includes bottle
Embryo mouth, transitional region, bottle embryo body and bottle embryo bottom；It is characterized in that, the bottle embryo body is by upper section linear type bottle embryo body, lower section straight line
Type bottle embryo body and be located in the middle embryo body changeover portion and collectively constitute, bottle embryo is integrally in warhead form, lower section linear type bottle embryo body with
Transition is realized in tangent mode between the circular arc at bottle embryo bottom；The axial cross section of two sections of linear type bottle embryo bodies be in two straight lines and
Using the angle of each self-forming as draft angle, with arc transition between two sections of linear type bottle embryo bodies.
2. the bottle embryo with two sections of linear type embryo bodies according to claim 1, which is characterized in that upper section linear type bottle embryo body
It is 1: 0.95~1: 0.45 with the ratio between the average radial size of lower section linear type bottle embryo body.
3. the bottle embryo with two sections of linear type embryo bodies according to claim 1, which is characterized in that upper section linear type bottle embryo body
Wall-thickness ratio with lower section linear type bottle embryo body is between 1: 0.8~1: 1.2.
4. the bottle embryo with two sections of linear type embryo bodies according to claim 1, which is characterized in that assuming that upper section linear type bottle
The average radial of embryo body and lower section linear type bottle embryo body is with a thickness of T1, the radial thickness at bottle embryo bottom is T2, then T2∶T1For 0.6~
0.9∶1。
5. the bottle embryo with two sections of linear type embryo bodies according to claim 1, which is characterized in that the embryo body changeover portion
Axial cross section is arc-shaped in two, and radius is R0.5mm~R50mm.
6. the bottle embryo with two sections of linear type embryo bodies according to claim 1, which is characterized in that the bottle embryo is with PET
Material is molded the plastic bottle preform to be formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124096.2U CN208962214U (en) | 2018-07-16 | 2018-07-16 | Bottle embryo with two sections of linear type embryo bodies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124096.2U CN208962214U (en) | 2018-07-16 | 2018-07-16 | Bottle embryo with two sections of linear type embryo bodies |
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| Publication Number | Publication Date |
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| CN208962214U true CN208962214U (en) | 2019-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821124096.2U Active CN208962214U (en) | 2018-07-16 | 2018-07-16 | Bottle embryo with two sections of linear type embryo bodies |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908785A (en) * | 2018-07-16 | 2018-11-30 | 西帕机械（杭州）有限公司 | A kind of bottle embryo with two sections of linear type embryo bodies |
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2018
- 2018-07-16 CN CN201821124096.2U patent/CN208962214U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108908785A (en) * | 2018-07-16 | 2018-11-30 | 西帕机械（杭州）有限公司 | A kind of bottle embryo with two sections of linear type embryo bodies |
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