CN117584428A - Blow molding die for blow molding thermoplastic material container - Google Patents
Blow molding die for blow molding thermoplastic material container Download PDFInfo
- Publication number
- CN117584428A CN117584428A CN202311836037.3A CN202311836037A CN117584428A CN 117584428 A CN117584428 A CN 117584428A CN 202311836037 A CN202311836037 A CN 202311836037A CN 117584428 A CN117584428 A CN 117584428A
- Authority
- CN
- China
- Prior art keywords
- thermoplastic material
- blow
- container
- cavity
- die body
- 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.)
- Pending
Links
- 239000012815 thermoplastic material Substances 0.000 title claims abstract description 66
- 238000000071 blow moulding Methods 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 17
- 229920001169 thermoplastic Polymers 0.000 claims description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 abstract description 5
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- -1 Polyethylene Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010030 laminating 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
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
- B29C49/4823—Moulds with incorporated heating or cooling means
-
- 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
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4882—Mould cavity geometry
-
- 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
- B29C2049/4879—Moulds characterised by mould configurations
- B29C2049/4894—With at least a part of the mould cavity formed by a cylindrical mould
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 the technical field of container blow molding, in particular to a blow molding die for blow molding a thermoplastic material container. The blow molding device comprises a first die body and a second die body, wherein the first die body and the second die body are closed to form a die cavity, the top of the die cavity is provided with a cavity opening, a blow molding pipe extends into the cavity opening, the blow molding device further comprises a container opening forming part, the container opening forming part is accommodated in the cavity opening, and a crack is formed between the container opening forming part and the cavity opening; the inner side and the outer side of the crack are hard surfaces, the container mouth of the container is shaped by extruding thermoplastic materials of the two hard surfaces, and the crack is filled and sealed by the thermoplastic materials. The invention realizes the shaping of the container mouth through the extrusion of the two hard surfaces of the outer wall of the hanging column and the inner wall of the cavity mouth, thereby improving the shaping quality of the container mouth, and filling and sealing the crack by using the thermoplastic material, avoiding the leakage of gas and improving the expansion efficiency of the thermoplastic material of the die cavity.
Description
Technical Field
The invention relates to the technical field of container blow molding, in particular to a blow molding die for blow molding a thermoplastic material container.
Background
A blow mold for thermoplastic containers is a mold used to make plastic containers. Blow molding is a common plastic processing process by which thermoplastic materials are melted by heating and then blow molded into containers of the desired shape by air or vacuum blowing. Blow molds are tools used to mold thermoplastic materials, typically made of steel, with complex internal structures and shapes. Containers of different shapes and sizes, such as bottles, cans, pails, etc., can be manufactured according to the design requirements of the product.
However, the thermoplastic material is dropped into the mold from the outside of the mold, so that the mouth of the molded container is connected with the thermoplastic material, and then the connection is cut, so that two defects are caused:
firstly, the thermoplastic material falls into the mould from the outer side of the mould to cause leakage of gas, so that the expansion speed of the thermoplastic material is reduced;
secondly, the effect of shaping the container mouth in a blow molding mode is poor.
Disclosure of Invention
The present invention aims to provide a blow mould for blow moulding thermoplastic containers, which solves the problems set forth in the background art mentioned above.
In order to achieve the above object, there is provided a blow mold for blow molding a thermoplastic material container, comprising a first mold body and a second mold body, wherein the first mold body and the second mold body are closed to form a mold cavity, the top of the mold cavity is provided with a cavity opening, a blow molding pipe extends into the cavity opening, and the blow mold further comprises a container opening forming part, the container opening forming part is accommodated in the cavity opening, and a crack is formed between the container opening forming part and the cavity opening;
the inner side and the outer side of the crack are hard surfaces, the container mouth of the container is shaped by extruding thermoplastic materials of the two hard surfaces, and the crack is filled and sealed by the thermoplastic materials.
As a further improvement of the technical scheme, the container mouth forming part comprises a hanging column and a top disc, the top disc is arranged at the top of the hanging column, pipe holes are formed in the axes of the hanging column and the top disc, and the blow molding pipe is connected in the pipe holes in a sliding manner;
the pipe hole is tightly attached to the blow molding pipe;
the top disk is used for sealing the cavity opening.
As a further improvement of the technical scheme, the outer contour of the hanging column is matched with the contour of the inner wall of the formed container mouth, and the inner contour of the cavity mouth is matched with the outer contour of the formed container mouth.
As a further improvement of the present solution, the thermoplastic material forms a greater part of the thickness of the mouth of the container than the part forming the body of the container.
As a further development of the solution, the blow tube extends into the mold cavity at a low-side position, so that the thermoplastic material expands from the low side to the high side.
As a further improvement of the technical proposal, the hanging column extends to the lower part of the crack.
As a further improvement of the present technical solution, the first mold body and the second mold body perform a rotational motion so that the thermoplastic material has a centrifugal force.
As a further improvement of the technical scheme, an outer frame is arranged outside the first die body and the second die body, and the first die body and the second die body rotate on the outer frame under the drive of a motor.
As a further improvement of the technical scheme, a cooling channel is arranged in the first die body and the second die body around the periphery of the die cavity, openings are formed in two sides of the first die body and the second die body in the cooling channel, and when the first die body and the second die body rotate, air flow rapidly enters one opening and rapidly flows out of the other opening after passing through the cooling channel.
Compared with the prior art, the invention has the beneficial effects that:
1. in the blow molding die for blow molding the thermoplastic material container, the clamp seam realizes the shaping of the container mouth through the extrusion of the outer wall of the hanging column and the inner wall of the cavity mouth, thereby improving the shaping quality of the container mouth, and filling and sealing the clamp seam by using the thermoplastic material, avoiding the leakage of gas and improving the expansion efficiency of the thermoplastic material of the die cavity.
2. In this a blowing mould for blowing thermoplastic material container, the gaseous expansion effort that gives thermoplastic material of blowing pipe injection, first die body and second die body rotate the back simultaneously can produce a centrifugal force, under the effect of centrifugal force, and thermoplastic material even expansion, then under the effect of expansion effort, thermoplastic material can comprehensive laminating with the die cavity.
3. In this a blowing mould for blowing thermoplastic material container, around the periphery of die cavity being provided with the cooling passageway, and the cooling passageway is provided with the opening in the both sides of first die body and second die body, and after first die body and second die body rotated, the air current got into an opening fast, after the cooling passageway, flowed out from another opening fast, can accelerate the radiating rate like this, improved cooling efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic side view of the first mold body and the second mold body of the present invention after closing;
FIG. 3 is an enlarged view of the structure of FIG. 2A in accordance with the present invention;
FIG. 4 is a schematic view of the structure of a first mold body and a second mold body provided on an outer frame according to the present invention;
FIG. 5 is a schematic view of the thermoplastic material after rotation of the first mold body and the second mold body according to the present invention.
The meaning of each reference sign in the figure is:
110. a first die body; 120. a second die body; 130. turning the head; 131. inserting a column; 141. hanging a column; 142. a top plate; 150. blow molding the tube; 100A, a die cavity; 100B, jack; 100C, a crack; 100D, cooling channels; 200. an outer frame; 210. a telescoping member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Blow molds are generally composed of two molds, the shape of which is formed by the closure of the two molds; after the plastic is melted by heating, the two molds are brought together, and the melted plastic material is filled into the molds by pressurizing and blowing, and then cooled and solidified to form the shape of the container.
As shown in fig. 1, the present invention provides a blow mold for blow molding a thermoplastic container, which includes a first mold body 110 and a second mold body 120, the first mold body 110 and the second mold body 120 are closed to form a mold cavity 100A (shown in fig. 2), the mold cavity 100A forms the shape of the container, and the top of the mold cavity 100A has a cavity opening through which a blow tube 150 for blowing air is extended into the mold cavity 100A, before which an internally hollow thermoplastic material has fallen into the mold cavity 100A, and then the extended blow tube 150 is extended into the hollow thermoplastic material, and then air is blown into the hollow thermoplastic material, so that the thermoplastic material is expanded, the expanded thermoplastic material gradually adheres to the inner wall of the mold cavity 100A, the thermoplastic material is shaped through the inner wall of the mold cavity 100A, and then the shaped container is obtained after cooling and solidifying.
On this basis, the blow molding mold provided by the invention further comprises a container mouth forming part, wherein the container mouth forming part is accommodated in the cavity mouth and is used for forming a crack 100C (shown in fig. 3), the crack 100C is formed by extruding two hard surfaces (the two hard surfaces are respectively the outer wall of the hanging column 141 and the inner wall of the cavity mouth; wherein the hanging column 141 is described in the following embodiment), the container mouth is shaped, the molding quality of the container mouth is improved, and the thermoplastic material is utilized for filling and sealing the crack 100C, so that the expansion efficiency of the thermoplastic material of the mold cavity 100A is improved.
In the first embodiment, the first mold body 110 and the second mold body 120 only perform the opening and closing actions, the container mouth forming portion includes a hanging column 141 and a top plate 142, the top plate 142 is disposed at the top of the hanging column 141, the hanging column 141 and the top plate 142 are integrally formed, and the axis is provided with a tube hole, the blow molding tube 150 is slidably connected in the tube hole, and the tube hole is tightly attached to the blow molding tube 150, wherein:
the outer contour of the hanging column 141 is matched with the contour of the inner wall of the formed container mouth, and then the inner contour of the cavity mouth is matched with the outer contour of the formed container mouth;
the top plate 142 can cover the cavity opening.
When in use, the thermoplastic material with hollow inside is sleeved outside the hanging column 141, then the hanging column 141 is moved downwards to enable the thermoplastic material to fall on the closed path of the first die body 110 and the second die body 120 (namely, the first die body 110 and the second die body 120 are in an open state at the moment), then the first die body 110 and the second die body 120 are closed, the thermoplastic material at the cavity opening is extruded and shaped into a container opening through the first die body 110 and the second die body 120, and simultaneously the top disc 142 is matched to seal the crack 100C, and the die cavity 100A only has the opening of a pipe hole at the moment; then, the blow molding pipe 150 is inserted into the pipe hole, and enters the hollow thermoplastic material from the pipe hole, at this time, the opening of the pipe hole is also closed, and then gas is injected into the hollow thermoplastic material through the blow molding pipe 150, because the mold cavity 100A is already sealed, the thermoplastic material can be rapidly expanded in the mold cavity 100A, the expanded thermoplastic material gradually adheres to the inner wall of the mold cavity 100A, and the thermoplastic material is shaped through the inner wall of the mold cavity 100A; after cooling, the solidified thermoplastic material forms a container.
The container may be a bottle, a can, a tub, or the like, and the thermoplastic material may include Polyethylene (PE), polystyrene (PS), polyester (PET), or the like.
Preferably, the thermoplastic material is formed into a portion of the container mouth having a greater thickness than the portion forming the container body (i.e., the thermoplastic material that falls within the cavity 100A to remove the mouth portion) to improve the quality of the formed container mouth and to avoid excessive porosity of the extruded container mouth due to insufficient material.
Preferably, when the blow molding tube 150 is inserted into the cavity 100A at a low side position, as shown in fig. 2 and 3, and when the blow molding tube 150 is injected with air, the thermoplastic material is expanded from the low side to the high side, so that the extra thermoplastic material is gradually accumulated on the high side during the expansion process, and the hanging posts 141 on the high side extend to the lower side of the crack 100C, so that the thermoplastic material accumulated on the high side is shaped under the limitation of the hanging posts 141, thereby facilitating the later processing of the residual material, and the residual material is usually cut off by a cutter, and when the residual material is shaped on the high side, the distance that the cutter extends into the mouth of the container is shortened, and the shape of the residual material is more regular due to the limitation of the hanging posts 141, so that the residual material is cut off by finding the cutting position.
In the second embodiment, on the basis of the opening and closing actions of the first mold body 110 and the second mold body 120, a rotation action is further performed, as shown in fig. 1, the bottoms of the first mold body 110 and the second mold body 120 are provided with insertion holes 100B, the blow molding mold further comprises a rotating head 130, two inserting posts 131 are arranged at the top of the rotating head 130, the two inserting posts 131 correspond to the insertion holes 100B, so that the inserting posts are in inserting fit with the inserting posts, and then the first mold body 110 and the second mold body 120 after being closed are driven to rotate by driving the rotating head 130.
In specific use, the outer frame 200 is required to be disposed outside the first mold body 110 and the second mold body 120, the outer frame 200 is in a "U" shape, so that a carrier plate is formed at the top and the bottom, the carrier plate at the top is fixedly connected with the top disc 142, a turntable is disposed on the carrier plate at the bottom, the turntable is driven by a motor, a telescopic member 210 is disposed on the turntable, a telescopic end of the telescopic member 210 is fixedly connected with the rotating head 130, after the first mold body 110 and the second mold body 120 are closed, the telescopic member 210 is lifted upwards to enable the rotating head 130 to move upwards, the inserting posts 131 are inserted into corresponding insertion holes 100B, then the turntable rotates, the telescopic member 210 is driven to drive the rotating head 130 to rotate, the first mold body 110 and the second mold body 120 are synchronously rotated under the driving of the rotating head 130, as shown in fig. 5, after the first mold body 110 and the second mold body 120 rotate, a centrifugal force B is generated, the thermoplastic material is uniformly unfolded under the action of the centrifugal force B, and then the thermoplastic material can be fully adhered to the mold cavity 100A under the action of the centrifugal force B.
After the container is cooled and shaped, the plug 131 is driven by the rotary head 130 to move downwards and then separate from the jack 100B, so that the first mold body 110 and the second mold body 120 are normally opened.
Moreover, in the first mold body 110 and the second mold body 120, a cooling channel 100D is disposed around the periphery of the mold cavity 100A, and openings are disposed on two sides of the first mold body 110 and the second mold body 120 in the cooling channel 100D, when the first mold body 110 and the second mold body 120 rotate, air flow rapidly enters one opening, and rapidly flows out from the other opening after passing through the cooling channel 100D, so that the heat dissipation speed can be increased, and the cooling efficiency is improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A blow mould for blow moulding thermoplastic containers, comprising a first mould body (110) and a second mould body (120), the first mould body (110) and the second mould body (120) being closed to form a mould cavity (100A), the top of the mould cavity (100A) having a cavity mouth into which a blow moulding tube (150) extends, characterized in that: the container comprises a container mouth forming part, wherein the container mouth forming part is accommodated in the cavity mouth, and a crack (100C) is formed between the container mouth forming part and the cavity mouth;
the inner side and the outer side of the crack (100C) are hard surfaces, the container mouth of the container is shaped by extruding thermoplastic materials of the two hard surfaces, and the crack (100C) is filled and sealed by the thermoplastic materials.
2. A blow mould for blow moulding thermoplastic material containers according to claim 1, wherein: the container mouth forming part comprises a hanging column (141) and a top disc (142), the top disc (142) is arranged at the top of the hanging column (141), pipe holes are formed in the axes of the hanging column (141) and the top disc (142), and the blow molding pipe (150) is connected in the pipe holes in a sliding mode;
the pipe hole is tightly attached to the blow molding pipe (150);
the top plate (142) is used for sealing the cavity opening.
3. A blow mould for blow moulding thermoplastic material containers according to claim 2, wherein: the outer contour of the hanging column (141) is matched with the contour of the inner wall of the formed container mouth, and the inner contour of the cavity mouth is matched with the outer contour of the formed container mouth.
4. A blow mould for blow moulding thermoplastic material containers according to claim 2, wherein: the thermoplastic material forms a greater thickness of the portion of the container finish than the portion forming the container body.
5. A blow mould for blow moulding thermoplastic material containers according to claim 2, wherein: the blow tube (150) extends into the mold cavity (100A) at a low side position to expand the thermoplastic material from the low side to the high side.
6. A blow mould for blow moulding thermoplastic material containers according to claim 5, wherein: the hanging post (141) extends to the lower part of the crack (100C).
7. A blow mould for blow moulding thermoplastic material containers according to claim 1, wherein: the first die body (110) and the second die body (120) perform a rotational motion to impart centrifugal force to the thermoplastic material.
8. A blow mould for blow moulding thermoplastic material containers according to claim 7, wherein: the first die body (110) and the second die body (120) are externally provided with an outer frame (200), and the first die body (110) and the second die body (120) rotate on the outer frame (200) under the drive of a motor.
9. Blow mould for blow moulding thermoplastic containers according to claim 7 or 8, characterized in that: the cooling channel (100D) is arranged around the periphery of the die cavity (100A) in the first die body (110) and the second die body (120), openings are formed in two sides of the first die body (110) and the second die body (120) in the cooling channel (100D), and when the first die body (110) and the second die body (120) rotate, air flow rapidly enters one opening and rapidly flows out of the other opening after passing through the cooling channel (100D).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836037.3A CN117584428A (en) | 2023-12-28 | 2023-12-28 | Blow molding die for blow molding thermoplastic material container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311836037.3A CN117584428A (en) | 2023-12-28 | 2023-12-28 | Blow molding die for blow molding thermoplastic material container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117584428A true CN117584428A (en) | 2024-02-23 |
Family
ID=89910082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311836037.3A Pending CN117584428A (en) | 2023-12-28 | 2023-12-28 | Blow molding die for blow molding thermoplastic material container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117584428A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1170565A (en) * | 1997-08-29 | 1999-03-16 | Japan Steel Works Ltd:The | Blowing-in nozzle of blow molding apparatus |
| CN109702993A (en) * | 2019-02-15 | 2019-05-03 | 马革 | A kind of scavenger system and its blowing process of blow moulding machine |
| CN214491567U (en) * | 2020-11-30 | 2021-10-26 | 昆山香桂纸塑有限公司 | Plastic cup blow molding device |
| CN116783055A (en) * | 2021-01-13 | 2023-09-19 | 莫尔马萨应用技术公司 | Injection blow mold and method |
| CN116945547A (en) * | 2023-06-21 | 2023-10-27 | 开能健康科技集团股份有限公司 | Mold structure, blowing needle, blowing device and manufacturing method of liner of pressure container |
-
2023
- 2023-12-28 CN CN202311836037.3A patent/CN117584428A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1170565A (en) * | 1997-08-29 | 1999-03-16 | Japan Steel Works Ltd:The | Blowing-in nozzle of blow molding apparatus |
| CN109702993A (en) * | 2019-02-15 | 2019-05-03 | 马革 | A kind of scavenger system and its blowing process of blow moulding machine |
| CN214491567U (en) * | 2020-11-30 | 2021-10-26 | 昆山香桂纸塑有限公司 | Plastic cup blow molding device |
| CN116783055A (en) * | 2021-01-13 | 2023-09-19 | 莫尔马萨应用技术公司 | Injection blow mold and method |
| CN116945547A (en) * | 2023-06-21 | 2023-10-27 | 开能健康科技集团股份有限公司 | Mold structure, blowing needle, blowing device and manufacturing method of liner of pressure container |
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