CN114454464B - Corner blow molding pipe and production device of corner blow molding product - Google Patents
Corner blow molding pipe and production device of corner blow molding product Download PDFInfo
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- CN114454464B CN114454464B CN202111613414.8A CN202111613414A CN114454464B CN 114454464 B CN114454464 B CN 114454464B CN 202111613414 A CN202111613414 A CN 202111613414A CN 114454464 B CN114454464 B CN 114454464B
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- 238000000071 blow moulding Methods 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 32
- 230000007704 transition Effects 0.000 claims description 50
- 238000005452 bending Methods 0.000 claims description 37
- 230000007246 mechanism Effects 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 3
- 238000007664 blowing Methods 0.000 abstract description 70
- 238000007493 shaping process Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000009825 accumulation Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 210000001161 mammalian embryo Anatomy 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010101 extrusion blow moulding Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/48—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/004—Bent tubes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention relates to a corner blow molding pipe and a production device of a corner blow molding product, belongs to the technical field of blow molding, and solves the problem of large corners in the prior art. This apparatus for producing of corner blowing product contains the blowing platform, the blowing bench be equipped with the blowing chamber, the blowing chamber contain first blowing section and second blowing section, first blowing section and second blowing section form the contained angle, first blowing section and second blowing section contained angle inboard be equipped with the excessive device of contained angle, the excessive device of contained angle and first blowing section and second blowing section between form excessive section holding chamber. The excessive section of setting up in contained angle department holds the chamber, can avoid in the shaping in-process in contained angle department and finally leave the long-pending material owing to the blowing is not in place, so set up the long-pending material that the holding chamber is used for placing the corner, increase the blowing area of corner simultaneously and make the long-pending material that originally can leave also fully blow-molded in holding the chamber, can also make the product shaping after can not produce the overlap.
Description
Technical Field
The invention belongs to the technical field of blow molding, and particularly relates to a corner blow molding pipe and a production device of a corner blow molding product.
Background
Extrusion blow molding is a method of making hollow thermoplastic articles. Blow molded articles are widely known as bottles, drums, cans, boxes, and all containers for packaging foods, beverages, cosmetics, medicines, and daily necessities. The blow molding process consists of 5 steps: 1. plastic embryo (extrusion of hollow plastic tube); 2. closing the split mold clamping tool on the parison, clamping the mold and cutting off the parison; 3. blowing a mold against the cold wall of the mold cavity, adjusting the opening and maintaining a certain pressure during cooling; 4. opening the mold and removing the blown part; 5. trimming the flash to obtain a finished product.
The invention patent with the publication number of CN215173143U discloses a hollow blow molding machine gas exhaust pipeline convenient for later maintenance, which comprises a first connecting pipe, wherein a second connecting pipe is arranged at the outer end of the first connecting pipe, a connecting pipe is arranged between the first connecting pipe and the second connecting pipe, one end of the second connecting pipe far away from the first connecting pipe is sleeved with a sleeve, the outer wall of the top of the second connecting pipe is provided with a sliding groove, one end of the sliding groove is connected with an L-shaped groove, a sliding block is arranged at the position, close to the sliding groove, of the inner wall of the sleeve, and the sliding groove is in sliding connection with the sliding block.
In the prior art, the L-shaped groove formed by blow molding has a design that the small end of the product is bent at an angle of 90 degrees. Because of the limitation of the blow molding process, the flash is very easy to clamp at the right angle turning position, the product accumulation is serious, and the product qualification rate is very low, so that the automatic production is not possible, and the blank needs to be manually placed. Therefore, a blow molding product capable of removing accumulated materials at the corner and a corresponding production device capable of adapting to the automatic feeding requirement of the product can be designed.
Disclosure of Invention
The invention aims at solving the problems in the prior art and provides a corner blow molding product and a production device thereof, which can reduce the problems of corner material accumulation removal and flash.
The aim of the invention can be achieved by the following technical scheme: the utility model provides a apparatus for producing of corner blowing product, contains the blowing platform, the blowing bench be equipped with the blowing chamber, the blowing chamber contain first blowing section and second blowing section, first blowing section and second blowing section form the contained angle, first blowing section and second blowing section contained angle inboard be equipped with the excessive device of contained angle, the excessive device of contained angle and first blowing section and second blowing section between form excessive section holding chamber.
The excessive section of setting up in contained angle department holds the chamber, can avoid in the shaping in-process in contained angle department and finally leave the long-pending material owing to the blowing is not in place, so set up the long-pending material that the holding chamber is used for placing the corner, increase the blowing area of corner simultaneously and make the long-pending material that originally can leave also fully blow-molded in holding the chamber, can also make the product shaping after can not produce the overlap.
In the above-mentioned apparatus for producing a corner blow molded product, the transition section accommodating chamber is in communication with the first blow molding section and the second blow molding section. The transition section accommodating cavity, the first blow molding section and the second blow molding section are integrally formed, and the molding is convenient.
In the above-mentioned apparatus for producing of corner blowing product, excessive section holding chamber be the arc along the contained angle department circumference arrangement of first blowing section and second blowing section. The arc-shaped transition section accommodating cavity can smoothly transition a hard corner without reducing corresponding strength and rigidity.
In the above-mentioned apparatus for producing of corner blowing product, the arc external diameter of transition section accommodation chamber be greater than the external diameter of first blowing section and second blowing section. The outer diameter of the accommodating cavity is larger than that of the first blow molding section and the second blow molding section, so that the wall thickness of the molded product in the accommodating cavity is uniform, and the product strength is not affected by accumulated materials.
In the above-mentioned apparatus for producing of corner blowing product, the excessive device of contained angle include the excessive piece of contained angle and control the flexible actuating mechanism of excessive piece of contained angle.
In the production device of the corner blow molding product, the driving mechanism is an air cylinder, an oil cylinder or an electric cylinder. The driving mechanism can drive the included angle transition piece to stretch out and draw back.
The utility model provides a corner blowing pipe, includes the body, the body include first section of buckling and second section of buckling, first section of buckling and second section of buckling between form the contained angle, the contained angle inboard of first section of buckling and second section of buckling be equipped with excessive section, excessive section be greater than the contained angle before first section of buckling and the second section of buckling with the contained angle of first section of buckling, excessive section be greater than the contained angle before first section of buckling and the second section of buckling with the contained angle of second section of buckling. The contained angle of the first section of buckling after the shaping and the second section of buckling is the acute angle, and after the shaping of excessive section, the contained angle of excessive section and first section of buckling and second section of buckling is the obtuse angle, has bigger area and stability, and this corner blowing pipe is made by the apparatus for producing of above-mentioned corner blowing product blowing, so have the same advantage with the apparatus for producing of above-mentioned corner blowing product, utilize excessive section to hold the chamber and form excessive section promptly, have the advantage that does not have long-pending material and overlap.
In the above-mentioned corner blow molding pipe, the first bending section is further provided with annular corrugations, the annular corrugations comprise peaks and troughs, the troughs are formed by adjacent annular corrugations, and the troughs form 60-degree included angles. The annular corrugation can be compressed or stretched when the pipeline has a deformation trend due to vibration and the like, so that the buffer effect is achieved, the included angle of the annular corrugation is 60 degrees, the deeper trough is achieved, the smaller compression angle is achieved, and the buffer performance is improved.
In the above corner blow molding pipe, the transition section is communicated with the first bending section and the second bending section.
In the above-mentioned corner blow molding pipe, the transition section is distributed along the circumference of the included angle between the first bending section and the second bending section to form an arc shape. The included angle of arc distribution department, the structure is excessively smooth, can not lead to the during operation atress unbalanced.
In the above corner blow molding tube, the arc outer diameter of the transition section is larger than the outer diameters of the first bending section and the second bending section.
In the corner blow molding pipe, the corner blow molding pipe is formed by combining two materials of PP and TPV, the corner blow molding pipe is of a double-layer structure, the double-layer structure comprises an outer layer and an inner layer, the outer layer is made of PP materials, and the inner layer is made of TPV materials. The PP material is relatively hard and lacks softness, so the outer layer adopts the PP material to ensure the integral hardness and strength, and the inner layer adopts the TPV material to ensure the integral softness and assembly requirement of the corner blow molding pipe.
Compared with the prior art, the production device of the corner blow molding product is characterized in that an included angle transition device is arranged between the included angle of the first blow molding section and the second blow molding section of the blow molding cavity, and a containing cavity of a transition section of the product is formed at the corner of the product which is produced originally and is easy to accumulate, so that the transition section of the product is formed, accumulation and flash are avoided, and the production qualification rate is improved; the included angle transition piece and the driving device are arranged, the driving device is used for replacing manual feeding, and therefore feeding efficiency is improved, and production efficiency is further improved.
Drawings
FIG. 1 is a schematic view of the structure of a blow molding station of the production apparatus of the present invention;
FIG. 2 is a schematic view of the structure of a production apparatus for producing a corner blow molded tube according to the present invention;
FIG. 3 is a schematic view of the structure of a corner blow molded tube of the present invention;
fig. 4 is a schematic diagram of the feeding structure of the production device of the present invention.
In the figure, 1, a blow molding table; 2. a blow molding chamber; 3. a first blow molding section; 4. a second blow molding section; 5. an included angle transition device; 6. a transition section accommodating chamber; 7. a first bending section; 71. annular corrugation; 8. a second bending section; 9. a transition section; 10. a driving mechanism.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Specific example 1 is shown in fig. 1, 2 and 4: the utility model provides a apparatus for producing of corner blowing product, contains blowing platform 1, blowing platform 1 on be equipped with blowing chamber 2, blowing chamber 2 contain first blowing section 3 and second blowing section 4, first blowing section 3 and second blowing section 4 form the contained angle, first blowing section 3 and the inboard contained angle of second blowing section 4 be equipped with contained angle transition device 5, contained angle transition device 5 and first blowing section 3 and second blowing section 4 between form transition section holding chamber 6. Setting up excessive section 9 at contained angle department and holding the chamber, can avoiding in the shaping in-process in contained angle department and finally leaving the long-pending material owing to blow molding is not in place, so set up the long-pending material that the holding chamber is used for placing the corner, increase the blowing area of corner simultaneously and make the long-pending material that originally can leave also fully blow molding in holding the chamber, can also make the product shaping after can not produce the overlap. The transition piece accommodation space 6 communicates with the first blow molding section 3 and the second blow molding section 4. The receiving cavity of the transition section 9 is integral with the first blow molding section 3 and the second blow molding section 4 themselves. The transition section accommodating cavity 6 is arranged in an arc shape along the circumferential direction of the included angle between the first blow molding section 3 and the second blow molding section 4. The arc-shaped transition section accommodating cavity 6 can smoothly transition a hard corner without reducing corresponding strength and rigidity. The arcuate outer diameter of the transition section receiving cavity 6 is greater than the outer diameters of the first blow molding section 3 and the second blow molding section 4. The outer diameter of the accommodating cavity is larger than that of the first blow molding section 3 and the second blow molding section 4, so that the wall thickness of the molded product in the accommodating cavity is uniform, and the product strength is not affected by accumulated materials.
In the above-mentioned apparatus for producing angular blow-molded products, the angle transition device 5 includes an angle transition member and a driving mechanism 10 for controlling the expansion and contraction of the angle transition member. The driving mechanism 10 is an air cylinder, an oil cylinder or an electric cylinder. The driving mechanism 10 can drive the included angle transition piece to stretch and retract.
Embodiment 2 discloses a corner blow molded tube as shown in fig. 3: including the body, the body include that first section of buckling 7 and second bend section 8, first section of buckling 7 and second bend and form the contained angle between the section 8, the contained angle inboard of first section of buckling 7 and second section of buckling 8 be equipped with excessive section 9, excessive section 9 be greater than the contained angle between first section of buckling 7 and the second section of buckling 8 with the contained angle of first section of buckling 7, excessive section 9 be greater than the contained angle between second section of buckling 8 with the contained angle before first section of buckling 7 and the second section of buckling 8. The contained angle of the first section 7 and the second section 8 of buckling after the shaping is sharp angle, after the shaping of transition section 9, transition section 9 and the contained angle of first section 7 and second section 8 of buckling are the obtuse angle, original rigid corner becomes the bulge structure of bigger area and space between first section 7 and the second section 8 of buckling, consequently, the stability of this corner blowing pipe has been improved through bigger area, and this corner blowing pipe is made by the apparatus for producing of above-mentioned corner blowing product, so have the same advantage with the apparatus for producing of above-mentioned corner blowing product, utilize transition section 9 to hold the chamber promptly, with the former possibly remaining accumulation material blowing formation transition section 9, have the advantage that does not have accumulation material and overlap. The transition section 9 communicates with the first bending section 7 and the second bending section 8. The transition section 9 is circumferentially distributed in an arc shape along the included angle between the first bending section 7 and the second bending section 8. The included angle of arc distribution department, the structure is excessively smooth, can not lead to the during operation atress unbalanced. The arc-shaped outer diameter of the transition section 9 is larger than the outer diameters of the first bending section 7 and the second bending section 8. The first bending section 7 is further provided with annular corrugations 71, the annular corrugations 71 comprise peaks and troughs, the troughs are formed by adjacent annular corrugations 71, and the troughs form 60-degree included angles. The annular corrugation can be compressed or stretched when the pipeline has a deformation trend due to vibration and the like, so that the buffer effect is achieved, the included angle of the annular corrugation is 60 degrees, the deeper trough is achieved, the smaller compression angle is achieved, and the buffer performance is improved. The corner blow molding pipe is formed by combining two materials, namely PP and TPV, the corner blow molding pipe is of a double-layer structure, the double-layer structure comprises an outer layer and an inner layer, the outer layer is made of PP materials, and the inner layer is made of TPV materials. The PP material is relatively hard and lacks softness, so the outer layer adopts the PP material to ensure the integral hardness and strength, and the inner layer adopts the TPV material to ensure the integral softness and assembly requirement of the corner blow molding pipe. By adopting a composite structure of two materials, the corner blow molding pipe can be well assembled with external parts, and has better applicability. The corner blow molded tube of example 2 was produced by the production apparatus of the corner blow molded product of example 1, and thus had the same advantages as the production apparatus of the corner blow molded product of example 1.
The working process of the invention is as follows: the driving mechanism 10 in the included angle transition device 5 drives the included angle transition piece to put the raw material plastic embryo into the blow molding cavity 2 and withdraw the raw material plastic embryo; the blowing station 1 is closed, the blowing work is started, in the blowing process, a first bending section 7 is formed in the first blowing section 3, a second bending section 8 is formed in the second blowing section 4, and an excessive section 9 is formed in the excessive section accommodating cavity 6 between the first blowing section 3 and the second blowing section 4, so that the blowing process is completed.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. A production device for corner blow-molded products, comprising a blow-molding table (1), characterized in that: the novel plastic blow molding machine is characterized in that a blow molding cavity (2) is formed in the blow molding table (1), the blow molding cavity (2) comprises a first blow molding section (3) and a second blow molding section (4), an included angle is formed between the first blow molding section (3) and the second blow molding section (4), an included angle transition device (5) is arranged on the inner side of the included angle between the first blow molding section (3) and the second blow molding section (4), and an transition section accommodating cavity (6) is formed between the included angle transition device (5) and the first blow molding section (3) and the second blow molding section (4); the included angle transition device (5) comprises an included angle transition piece and a driving mechanism (10) for controlling the extension and retraction of the included angle transition piece.
2. The apparatus for producing a corner blow molded product according to claim 1, wherein: the transition section accommodating cavity (6) is communicated with the first blow molding section (3) and the second blow molding section (4).
3. The apparatus for producing a corner blow molded product according to claim 1, wherein: the transition section accommodating cavity (6) is circumferentially arranged to be arc-shaped along the included angle between the first blow molding section (3) and the second blow molding section (4).
4. A production device for corner blow molded products according to claim 3, wherein: the arc-shaped outer diameter of the transition section accommodating cavity (6) is larger than the outer diameters of the first blow molding section (3) and the second blow molding section (4).
5. A corner blow-molded tube produced by a production device for a corner blow-molded product according to any one of claims 1 to 4, comprising a body, wherein the body comprises a first bending section (7) and a second bending section (8), and an included angle is formed between the first bending section (7) and the second bending section (8), and the corner blow-molded tube is characterized in that an excessive section (9) is arranged on the inner side of the included angle between the first bending section (7) and the second bending section (8), and the included angle between the excessive section (9) and the first bending section (7) is larger than the included angle between the first bending section (7) and the second bending section (8), and the included angle between the excessive section (9) and the second bending section (8) is larger than the included angle between the first bending section (7) and the second bending section (8).
6. The corner blow molded tube of claim 5, wherein: the first bending section (7) is further provided with annular waves (71), the annular waves (71) comprise wave crests and wave troughs, the wave troughs are formed by adjacent annular waves (71), and the wave troughs form included angles of 60 degrees.
7. The corner blow molded tube of claim 5, wherein: the transition section (9) is communicated with the first bending section (7) and the second bending section (8).
8. The corner blow molded tube of claim 5, wherein: the transition section (9) is arc-shaped along the circumferential distribution of the included angle between the first bending section (7) and the second bending section (8), and the arc-shaped outer diameter of the transition section (9) is larger than the outer diameters of the first bending section (7) and the second bending section (8).
9. The corner blow molded tube of claim 5, wherein: the corner blow molding pipe is formed by combining two materials, namely PP and TPV, the corner blow molding pipe is of a double-layer structure, the double-layer structure comprises an outer layer and an inner layer, the outer layer is made of PP materials, and the inner layer is made of TPV materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111613414.8A CN114454464B (en) | 2021-12-27 | 2021-12-27 | Corner blow molding pipe and production device of corner blow molding product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111613414.8A CN114454464B (en) | 2021-12-27 | 2021-12-27 | Corner blow molding pipe and production device of corner blow molding product |
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| Publication Number | Publication Date |
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| CN114454464A CN114454464A (en) | 2022-05-10 |
| CN114454464B true CN114454464B (en) | 2023-10-24 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865799A (en) * | 1987-06-18 | 1989-09-12 | Abc Group | Method for aligning extruded parison into sepentine-shaped mold cavity |
| JPH01242227A (en) * | 1988-03-24 | 1989-09-27 | Kinugawa Rubber Ind Co Ltd | Blow molding die |
| CN101712199A (en) * | 2009-11-11 | 2010-05-26 | 宁波均胜汽车电子股份有限公司 | Multi-dimensional robot traction controlled blow molding process and equipment thereof |
| CN209809028U (en) * | 2018-11-19 | 2019-12-20 | 成都市联余精密机械有限公司 | Structure of bottom of infusion bottle |
| CN113290828A (en) * | 2021-07-02 | 2021-08-24 | 广东星联精密机械有限公司 | Bottle blank structure beneficial to stretch blow molding |
-
2021
- 2021-12-27 CN CN202111613414.8A patent/CN114454464B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4865799A (en) * | 1987-06-18 | 1989-09-12 | Abc Group | Method for aligning extruded parison into sepentine-shaped mold cavity |
| JPH01242227A (en) * | 1988-03-24 | 1989-09-27 | Kinugawa Rubber Ind Co Ltd | Blow molding die |
| CN101712199A (en) * | 2009-11-11 | 2010-05-26 | 宁波均胜汽车电子股份有限公司 | Multi-dimensional robot traction controlled blow molding process and equipment thereof |
| CN209809028U (en) * | 2018-11-19 | 2019-12-20 | 成都市联余精密机械有限公司 | Structure of bottom of infusion bottle |
| CN113290828A (en) * | 2021-07-02 | 2021-08-24 | 广东星联精密机械有限公司 | Bottle blank structure beneficial to stretch blow molding |
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|---|---|
| CN114454464A (en) | 2022-05-10 |
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