CN212684675U - Special-shaped section bottle blank structure - Google Patents
Special-shaped section bottle blank structure Download PDFInfo
- Publication number
- CN212684675U CN212684675U CN202021045312.1U CN202021045312U CN212684675U CN 212684675 U CN212684675 U CN 212684675U CN 202021045312 U CN202021045312 U CN 202021045312U CN 212684675 U CN212684675 U CN 212684675U
- Authority
- CN
- China
- Prior art keywords
- section
- bottle
- cross
- special
- shaped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
Abstract
The utility model discloses a dysmorphism cross-section bottle base structure, the base body of dysmorphism cross-section bottle base structure includes the annular cross-section, the cross-section change section, special-shaped cross-section has the special-shaped cross-section, special-shaped cross-section comprises interior closed line and outer closed line, the shortest distance between interior closed line and the outer closed line is the wall thickness of bottle base structure, length with special-shaped cross-section bottle base structure equals, the annular cross-section bottle base structure that the gram weight equals compares, wherein, annular cross-section bottle base structure has the ring cross-section, the tensile ratio of bottle blowing of special-shaped cross-section bottle base structure keeps under the prerequisite that equals with the tensile ratio of bottle blowing of annular cross-section bottle base structure, the girth of special-shaped cross-section is greater than ring cross-section's girth, and special-section. The special-shaped cross-section bottle blank structure can effectively shorten the cooling time of the injection molding of the bottle blank and the preheating time before bottle blowing, thereby shortening the whole processing period of the bottle and improving the production efficiency.
Description
Technical Field
The utility model relates to a bottle base technical field especially relates to a dysmorphism cross-section bottle base structure.
Background
Due to the characteristics of high efficiency and manufacturability of injection molding, injection molding has become the most common method for manufacturing plastic products, and has a very important position in the plastic processing industry. The cooling is the most important stage in the injection molding process, and has a great influence on the quality and the production efficiency of the product, the cooling time occupies about 2/3 of the whole injection molding time, and the cooling time is a key influence on the product forming period and the energy consumption. At present, the research on the cooling technology for accelerating the formed part at home and abroad mainly focuses on accelerating the heat dissipation part of the mold, however, because the heat conductivity coefficient of the bottle blank material is extremely small, the self heat resistance is far greater than the heat resistance of a cooling system and the mold in the cooling process, the self heat resistance of the bottle blank is the main factor influencing the cooling efficiency, and the reduction of the cooling time is substantially limited by improving the heat exchange coefficient of cooling water and the heat conductivity coefficient of the mold material in the prior art.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art existence, the utility model provides a dysmorphism cross-section bottle base structure, it is from the bottle base, carries out new design to the bottle base structure, accelerates injection moulding's cool time through changing bottle base structural shape.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a bottle blank structure with a special-shaped section comprises a bottle mouth, a blank body and a blank bottom, wherein the blank body comprises an annular section, a section changing section and a special-shaped section, the annular section is connected with the bottle mouth, the special-shaped section is connected with the blank bottom, the section changing section is a transition section between the annular section and the special-shaped section,
the special-shaped section is provided with a special-shaped section, the special-shaped section is composed of an inner closing line and an outer closing line, the shortest distance between the inner closing line and the outer closing line is the wall thickness of the bottle blank structure,
compared with the annular-section bottle blank structure with the same length and the same gram weight of the special-shaped-section bottle blank structure, the annular-section bottle blank structure is provided with the annular section, the circumference of the special-shaped section is larger than that of the annular section on the premise that the bottle blowing stretching ratio of the special-shaped-section bottle blank structure is equal to the bottle blowing stretching ratio of the annular-section bottle blank structure, and the wall thickness of the special-shaped-section bottle blank structure is smaller than that of the annular-section bottle blank structure.
The utility model discloses conventional annular cross section bottle base structure improves among the prior art, keeps the length and the gram weight of bottle base unchangeable in the time of the modified, changes annular cross section bottle base structure into special-shaped cross section bottle base structure, and the special-shaped cross section of this special-shaped cross section bottle base structure is compared in the ring cross section of annular cross section bottle base structure, and its cross sectional area is the same, and cross-section week length increases, and the bottle base wall thickness reduces, and such characteristic makes the utility model discloses an irregular cross section bottle base structure has following beneficial effect:
(1) because the circumference of the section is increased, the contact area of the bottle blank and the blowing mold is increased, thereby shortening the cooling time of injection molding of the bottle blank, shortening the whole injection molding period and improving the production efficiency of the bottle blank;
(2) the wall thickness of the bottle blank is reduced, so that the heat conductivity of the bottle blank is better, the bottle blank is more uniformly preheated before blow molding, and the heating time is shortened, so that the energy consumption in the preheating process is reduced;
(3) the utility model discloses change annular cross section bottle base structure into special-shaped cross section bottle base structure, nevertheless the stretch ratio of bottle base keeps unchangeable, and consequently the blowing performance of bottle base does not change, does not influence the bottle quality that the blowing formed.
Drawings
The invention will be further described and illustrated with reference to the accompanying drawings.
Fig. 1a is a schematic representation of a prior art bottle preform.
FIG. 1b is a cross-sectional view A-A of FIG. 1 a.
Fig. 2 is a schematic diagram of the structure of the bottle blank with the special-shaped cross section of the present invention.
FIG. 3a is a sectional view of a deformed cross-sectional segment of the deformed cross-sectional bottle preform structure of example 1.
Fig. 3b is a schematic diagram of the modeling of the profiled cross-section of fig. 3 a.
FIG. 4a is a sectional view of a deformed cross-sectional portion of the deformed cross-sectional preform structure in example 2.
Fig. 4b is a schematic diagram of the modeling of the profiled cross-section of fig. 4 a.
FIG. 5a is a sectional view of a shaped section segment of the shaped section preform structure in example 3.
Fig. 5b is a schematic diagram of the modeling of the profiled cross-section of fig. 5 a.
Fig. 5c is a partial enlarged view of fig. 5 b.
FIG. 6a is a sectional view of a shaped section segment of the shaped section preform structure in example 4.
Fig. 6b is a schematic modeling diagram of the profiled cross-section of fig. 6 a.
Fig. 7 is a graph of cooling temperature data for prior art bottle preforms and the bottle preforms of the present invention during injection molding tests.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
The prior art shown in fig. 1a and 1b is a conventional preform structure, and the conventional preform structure 10 ' includes a bottle opening 1 ', a body 2 ', and a base 3 ', and the body 2 ' is located between the bottle opening 1 ' and the base 3 '. As shown in fig. 1b, when the blank 2 ' has a circular cross section, the outer diameter of the circular cross section is m, the inner diameter of the circular cross section is n, the thickness t ' of the blank 2 ' is m-n, and the area of the circular cross section is:
for shortening the cooling time of the plastic bottle injection molding, the utility model discloses study and design the shape of bottle base structure.
As shown in fig. 2, the bottle blank structure 20 with irregular cross section of the present invention includes a bottle mouth 1, a blank body 2, and a blank bottom 3, wherein the blank body 2 is located between the bottle mouth 1 and the blank bottom 3. Specifically, the blank body 2 includes a ring-shaped section 21, a section changing section 22, and a deformed section 23. Wherein, the ring-shaped section 23 is connected with the bottle mouth 1 and has a ring-shaped section shape; the shaped section segment 23 is connected to the blank bottom 3 and has a shaped cross-sectional shape, where "shaped" is a cross-sectional shape different from the circular cross-sectional shape with respect to the circular shape; the cross-sectional variation 22 is a transition between the annular cross-sectional section 21 and the profiled cross-sectional section 23, which transitions from a circular shape to a profiled contour.
The blank bottom 3 comprises an arc changing section 31 and a spherical section 32, wherein the arc changing section 31 is connected with the special-shaped section 23, gradually changes from a special-shaped contour to a circular contour, and is in arc transition connection with the spherical section 32. The maximum diameter d of the spherical segment 32 is not less than φ 8.
The utility model discloses shorten injection moulding cooling time's principle is: on the premise of not changing the gram weight of the conventional bottle blank, the cross section perimeter of the bottle blank structure is increased and the wall thickness of the bottle blank is reduced by changing the cross section shape of the bottle blank, so that the contact area between the bottle blank and a bottle blowing mold is substantially increased, the cooling time is shortened, the injection molding period and even the whole production period are shortened, the energy consumption is reduced, and the production efficiency is improved.
Based on the above principle, the utility model provides a several kinds of embodiments of dysmorphism cross-section bottle base structure, the following is to each embodiment carry out detailed description.
Example 1
As shown in fig. 3a and 3b, in this embodiment, the cross-sectional shape of the shaped cross-section 23 is formed by an outer closing line 210a and an inner closing line 220a, and the outer closing line 210a and the inner closing line 220a are both zigzag-shaped and include a plurality of folding lines, and the folding lines of the outer closing line 210a and the inner closing line 220a are parallel to each other. The outer and inner closing lines 210a and 220a composed of the folding lines include several peaks 211a, 221a and valleys 212a, 222 a.
To ensure that the stretch ratio of the preform structure with the irregular cross-section is equal to that of the preform structure with the circular cross-section shown in fig. 1a and 1b, the outer closed line 210a and the inner closed line 220a are respectively located near the outer ring and the inner ring of the circular cross-section, preferably, the outer folding line (i.e., the outer closed line 210a) and the inner folding line (i.e., the inner closed line 220a) respectively extend on the outer ring and the inner ring of the circular cross-section, and the area of the cross-section (hereinafter, referred to as "the inner-outer folding line cross-section") formed by the outer closed line 210a and the inner closed line 220a with the folding line shape and the area S ofRing (C)Are equal. Knowing the outer diameter m and the inner diameter n of the circular ring-shaped cross section, presetting the number of wave crests and the angle alpha, and obtaining the diameter D of a circle passing through the vertexes of all the wave crests 211a of the outer closed line 210a1So as to establish a model of the inner and outer polygonal cross sections.
The process of establishing the model of the inner and outer polygonal sections is as follows:
if BE ═ AD, DF ═ BC, BG | | | | CD are taken, BE ═ DF ═ t, and t represents the shortest distance between 210a and the inner closed line 220a, i.e., the wall thickness of the irregular cross-section segment 23.
Let < ODA > be equal to beta and < OAD > be equal to alpha, then
And also
Wherein the content of the first and second substances,
β＝π-(θ+α) (2-4)
as a result of this, the number of the,
BM＝BCcosα (2-8)
AM＝AB+BM (2-9)
as a result of this, the number of the,
then a quadrangle S□ABCDHas an area of
The area of the quadrangle □ ABCD requires an annular area S corresponding to the concentric angle θRing thetaEqual, annular area SRing thetaComprises the following steps:
order S□ABCD＝SRing thetaIs simplified to obtain
To ensure the draw ratio, the
Combine two formulas 2-13 and 2-14 to obtain
Get it solved
Thus, a model with an inside and outside polygonal cross section is obtained.
Example 2
As shown in fig. 4a and 4b, in this embodiment, the cross-sectional shape of the shaped cross-section 23 is formed by an outer closed line 210b and an inner closed line 220b, both the outer closed line 210b and the inner closed line 220b are corrugated, and the outer closed line 210b and the inner closed line 220b formed by the corrugated lines include a plurality of peaks 211b, 221b and valleys 212b, 222 b.
The ripple shape in this embodiment is substantially composed of a plurality of arc segments, the number of ripples is determined by the included angle corresponding to the arc segments, and the amplitude of the ripples is directly influenced by the position and the diameter of the center of the arc. As shown in fig. 4b, a method for generating a curve model will be described below by taking one of the curves as an example.
D1 and D2 are preset, D4 and D6 control the circular diameter of the outer lines of the corrugations, D3 and D5 control the circular diameter of the inner lines of the corrugations, and the size of theta is determined by the number of the corrugations.
In order to ensure that the stretch ratio of the preform structure with the irregular cross-section is equal to that of the preform structure with the circular cross-section shown in FIGS. 1a and 1b, the outer closed line 210b and the inner closed line 220b are respectively located on the circular cross-sectionNear the outer ring and the inner ring, preferably, an outer corrugated line (i.e., the outer closed line 210b) and an inner corrugated line (i.e., the inner closed line 220b) extend on the outer ring and the inner ring of the ring-shaped cross section, respectively, and the area of the cross section (hereinafter referred to as "inner and outer corrugated cross section") formed by the corrugated outer closed line 210b and the inner closed line 220b and the area S of the ring-shaped cross section areRing (C)Equals to give the number of wave crests x, D1、D2，D3、D4The unique corrugated section can be obtained by the three values in the step (a). The process of establishing the model of the inner and outer corrugated sections is as follows:
radius of the left end and the right end of the outer corrugation:
external corrugation tip radius:
order to
Wherein m and n are respectively the outer diameter and the inner diameter of the annular section bottle blank structure.
Circle D4And D5Tangency, the sum of radii equal AB:
2-26 to 2-29 solution in a combined vertical mode
The corrugated cross-sectional area is:
the corrugated section has the same area as the section of the circular ring:
Swave (wave)＝SRing theta (2-33)
Circle D3And D6Tangency, the sum of radii equal AB:
2-20, 2-32-2-34 of the formula
Order to
Then there is
D3＝2AB-D6 (2-39)
The thickness of the corrugation is:
thus, a model of the inner and outer corrugated cross-section was obtained.
Example 3
As shown in fig. 5a to 5c, in this embodiment, the sectional shape of the irregularly-shaped sectional segment 23 is constituted by an outer closed line 210c and an inner closed line 220c, the outer closed line 210c is a polygonal line, and the inner closed line 220c is a corrugated line. The outer and inner closing lines 210c and 220c, which are composed of folding lines, include several peaks 211c, 221c and valleys 212c, 222 c.
In order to ensure that the stretch ratio of the bottle preform structure with the irregular cross section is equal to that of the bottle preform structure with the circular cross section shown in fig. 1a and 1b, the outer closed line 210c and the inner closed line 220c are respectively positioned near the outer ring and the inner ring of the circular cross section, preferably, the broken line (i.e. the outer closed line 210c) and the corrugated line (i.e. the inner closed line 220c) respectively extend on the outer ring and the inner ring of the circular cross section, and the area of the cross section (hereinafter, referred to as the "outer-folded inner-corrugated cross section") formed by the outer closed line 210c and the corrugated inner closed line 220c is equal to the area of the circular cross section.
D1 is a preset value in the case of the inner and outer corrugated cross sections in embodiment 2, D3 and D6 are diameters of circles controlling the outer corrugations in the corrugated cross section, the size of the theta angle is determined by the number of wave crests, and gamma is an included angle between an outer folding line and a connecting line of the wave crests and the wave troughs. Only the number of wave crests, gamma, D1 and D2 are needed to determine the unique solution of D. The modeling process of the corrugated section inside the external fold is as follows:
let AO3And d, m and n are respectively the outer diameter and the inner diameter of the ring. Taking the area of the annulus within the angle theta to be
As can be seen from the derived formula of the corrugated shape,
and also
∠AO3E＝θ+α (2-46)
∠AEO3＝180-θ-α-γ (2-47)
Then
sin∠AEO3＝sin(θ+α+γ) (2-48)
Then
And also
sin∠BEO2＝sin∠AEO3＝sin(θ+α+γ)，
sin∠O2BE＝sin(θ+γ)，
Then
Let the area of the quadrilateral ABCD and the annular area S of the concentric angle thetaRing thetaEqual, AB fluctuates around the original circular outer line, there is
Move item, have
Order to
Then there is
Order to
Get it solved
Thus, a model of the corrugated cross-section inside the outer folds is obtained.
Example 4
As shown in fig. 6a and 6b, in this embodiment, the sectional shape of the shaped section 23 is constituted by an outer closed line 210d and an inner closed line 220d, the outer closed line 210d is a polygonal line shape, and the inner closed line 220d is a circular shape. The outer closing line 210d composed of the folding lines includes several peaks 211d and valleys 212 d.
In order to ensure that the stretch ratio of the bottle preform structure with the irregular cross section is equal to that of the bottle preform structure with the circular cross section shown in fig. 1a and 1b, the outer closed line 210d and the inner closed line 220d are respectively positioned near the outer ring and the inner ring of the circular cross section, preferably, the broken line (i.e. the outer closed line 210d) extends on the outer ring of the circular cross section, and the area of the cross section (hereinafter, referred to as the "outer-folding inner-circular cross section") formed by the outer closed line 210d and the circular inner closed line 220d with the broken line shape is equal to the area of the circular cross section. Knowing that the outer diameter m and the inner diameter n of the circular ring-shaped section and the size of theta are determined by the number of corrugations, under the condition of meeting the two conditions, giving the number x and alpha of wave crests to obtain a model of the externally-folded and internally-circular section, wherein the model establishing process is as follows:
cross-sectional area of bottle preform with annular cross-section corresponding to concentric angle theta
Order to
Get it solved
Wherein the content of the first and second substances,
thus, a model of an outwardly-folded inner circular cross-section is obtained.
The utility model discloses a improve current conventional annular cross-section bottle base structure, under the prerequisite that does not change bottle base grammes per square metre, change the annular cross-section of annular cross-section bottle base structure into special-shaped cross-section to increase the cross-section girth of bottle base structure, increased the area of contact of bottle base and bottle blowing mould in essence, therefore can effectively shorten the cooling time of bottle base injection moulding; and the wall thickness of the bottle blank with the special-shaped cross section is reduced compared with that of the bottle blank with the conventional annular cross section, so that the bottle blank with the special-shaped cross section has better heat conductivity, when the bottle blank is blown into a bottle, the bottle blank is uniformly preheated, the heating time is shortened, and the energy consumption of heating the bottle blank and the energy consumption of bottle blowing pressure are reduced. In addition, the change of the sectional shape of the bottle blank does not affect the stretch ratio of the bottle blank, and the stretch ratio is kept unchanged from the original conventional bottle blank, so that the blow molding property of the bottle is kept unchanged, and the bottle with the same quality requirement can be formed by blow molding.
The following is the utility model discloses a contrast test of special-shaped cross section bottle base structure and current conventional annular cross section bottle base structure in bottle base injection moulding and blow molding process is experimental.
Test environment of injection molding:
cooling effect of injection molding:
in the test, the temperature of 22 groups of bottle blanks is measured, and the result is shown in fig. 7 under the test environment, the average maximum temperature of the conventional bottle blank after cooling is 80.2 ℃, after the abnormal point is removed, the maximum average temperature of the inner and outer polygonal-section bottle blanks (referred to as "inner and outer polygonal-section bottle blanks") after cooling is 67.78 ℃, and the maximum average temperature of the outer and inner polygonal-section bottle blanks (referred to as "inner and outer polygonal-section bottle blanks") after cooling is 62.175 ℃.
According to the tested infrared cloud chart, the positions of the inner and outer fold line-shaped bottle blanks and the outer fold inner circle-shaped bottle blanks with the highest temperature are located on the blank body parts of the bottle blanks, the cooling efficiency of the bottle blanks with the two special-shaped structures is better than that of the conventional 22.28g bottle blanks, and the cooling efficiency is improved by more than 15.49% compared with that of the conventional bottle blanks.
According to the test results of the injection molding process, it can be obtained that: under the same cooling environment, the utility model discloses a special-shaped cross section bottle base compares with current annular cross section bottle base, and the temperature drop is more, and required cooling time is shorter so, and cooling efficiency is higher.
And (3) blow molding test:
and carrying out blow molding tests on the conventional bottle blanks with the annular cross sections, the bottle blanks with the inside and outside fold line shapes and the bottle blanks with the outside fold and inside circular shapes, and carrying out heating analysis and comparison on the bottle blanks.
The temperature of the three preforms was measured when they were heated for 103 seconds under the same heating conditions. According to the tested infrared cloud chart, the temperature of the externally-folded and internally-folded round bottle blank is 109.5 ℃, the temperature of the internally-and externally-folded bottle blank is 104.8 ℃, and the temperature of the conventional annular-section bottle blank is the lowest and is 100.3 ℃. Therefore, under the same condition of heating, the utility model discloses a special-shaped cross section bottle base compares with current annular cross section bottle base, and temperature rise is higher, is heated more easily, and heat time shortens, has saved the energy consumption in the heating process effectively.
Blow molding effect and depressurization test:
to conventional annular cross section bottle base, blow molding pressure need reach more than 32Mpa usually and just can satisfy the bottle blowing quality requirement, and the utility model discloses a special-shaped cross section bottle base just can satisfy the bottle blowing quality requirement when blow molding pressure is 30 Mpa. The effect of PET was observed by reducing the blowing pressure under the same heating conditions, and evaluated at a 5 point full scale, and the evaluation results were as follows:
according to above-mentioned step-down test, can reach, the utility model discloses a special-shaped cross section bottle base compares with current annular cross section bottle base, and required blowing pressure is lower to can satisfy the blowing quality requirement, consequently saved the energy consumption in the blowing technology.
To sum up, the utility model discloses a dysmorphism cross-section bottle base compares with prior art, cools off more easily, is heated more easily, and the homogeneity of being heated is better, and this dysmorphism cross-section bottle base is from bottle base injection moulding, to preheating, arrives the blowing technology again, and efficiency in each process all obtains obviously improving, to the production and processing of whole plastic bottle, required processing cycle is shown and is shortened, and production efficiency improves by a wide margin.
The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.
Claims (6)
1. The utility model provides a dysmorphism cross section bottle base structure, includes at the bottom of bottleneck, base body, the base, its characterized in that:
the blank body comprises an annular section, a section change section and a special-shaped section, the annular section is connected with the bottle mouth, the special-shaped section is connected with the blank bottom, the section change section is a transition section between the annular section and the special-shaped section,
the special-shaped section is provided with a special-shaped section, the special-shaped section is composed of an inner closing line and an outer closing line, the shortest distance between the inner closing line and the outer closing line is the wall thickness of the bottle blank structure,
compared with the annular-section bottle blank structure with the same length and the same gram weight of the special-shaped-section bottle blank structure, the annular-section bottle blank structure is provided with an annular section, the circumference of the special-shaped section is larger than that of the annular section on the premise that the bottle blowing stretching ratio of the special-shaped-section bottle blank structure is equal to the bottle blowing stretching ratio of the annular-section bottle blank structure, and the wall thickness of the special-shaped-section bottle blank structure is smaller than that of the annular-section bottle blank structure.
2. The shaped cross-section preform structure of claim 1, wherein the shaped cross-section of the shaped cross-section preform structure has an area equal to an area of the annular cross-section preform structure.
3. The shaped cross-section preform structure of claim 2, wherein the outer closure line of the shaped cross-section comprises a plurality of peaks and valleys.
4. The profiled cross-section bottle preform structure of claim 3, wherein the outer closed line of the profiled cross-section is corrugated or dog-leg shaped.
5. The profiled cross-section bottle preform structure of claim 4, wherein the inner closed line of the profiled cross-section is circular, corrugated or dog-leg shaped.
6. The profiled cross-section bottle preform structure of claim 1, wherein said preform base comprises a circular arc variation section and a spherical section, said circular arc variation section being connected to said profiled cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045312.1U CN212684675U (en) | 2020-06-09 | 2020-06-09 | Special-shaped section bottle blank structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045312.1U CN212684675U (en) | 2020-06-09 | 2020-06-09 | Special-shaped section bottle blank structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212684675U true CN212684675U (en) | 2021-03-12 |
Family
ID=74890961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021045312.1U Active CN212684675U (en) | 2020-06-09 | 2020-06-09 | Special-shaped section bottle blank structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212684675U (en) |
-
2020
- 2020-06-09 CN CN202021045312.1U patent/CN212684675U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2781810B2 (en) | Container for heated filling, manufacturing method thereof and intermediate molded product thereof | |
| US5763030A (en) | Biaxially stretch blow-molded article and bottom mold therefor | |
| US9034446B2 (en) | Preform suitable for blow-molding into a final shaped container | |
| TW200902294A (en) | Improved plastic preform | |
| US4432530A (en) | Mold-core rod combination for forming an injection molded plastic parison | |
| JP2000127230A (en) | Production of flat bottle by cold parison blow molding method and parison for cold parison blow molding | |
| US4885197A (en) | Plastic preform for forming blow molded plastic bottles | |
| CN212684675U (en) | Special-shaped section bottle blank structure | |
| CN212684676U (en) | Special-shaped section bottle blank structure | |
| KR0184322B1 (en) | Method of molding heat-resistant container and a set of molds for the method | |
| US20140295119A1 (en) | Preforms for blow moulding | |
| CN111531847A (en) | Special-shaped section bottle blank structure and forming method thereof | |
| CN111531848A (en) | Special-shaped section bottle blank structure and forming method thereof | |
| JPH04119819A (en) | Manufacture of biaxially oriented blow molded vessel | |
| CN212826766U (en) | Special-shaped section bottle blank structure | |
| US4588620A (en) | Parison for making molecularly oriented plastic bottles | |
| CN204249143U (en) | container preform | |
| CN109747139A (en) | The production method of beverage bottle | |
| US4521369A (en) | Method of making molecularly oriented plastic bottles | |
| CN104192391B (en) | A kind of lightweight Packaging Bottle embryo bottom structure | |
| CN111531846A (en) | Special-shaped section bottle blank structure and forming method thereof | |
| CN213385118U (en) | High-molecular food-grade plastic bottle blank | |
| CN218227811U (en) | Blow molding air ring for hydrogen cylinder | |
| US20230330911A1 (en) | Stretching and cooling rod for forming containers | |
| CN212741127U (en) | Determinant bottle-making machine bush cooling structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |