CN115556310A - Ejector-rod-free multi-cavity elbow forming die and operation method thereof - Google Patents
Ejector-rod-free multi-cavity elbow forming die and operation method thereof Download PDFInfo
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- CN115556310A CN115556310A CN202211206865.4A CN202211206865A CN115556310A CN 115556310 A CN115556310 A CN 115556310A CN 202211206865 A CN202211206865 A CN 202211206865A CN 115556310 A CN115556310 A CN 115556310A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 49
- 150000001875 compounds Chemical class 0.000 claims abstract description 48
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000007790 scraping Methods 0.000 claims description 8
- 238000001746 injection moulding Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2602—Mould construction elements
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/38—Cutting-off equipment for sprues or ingates
-
- 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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- 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
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a multi-cavity elbow forming die without an ejector rod and an operation method thereof, wherein an upper die cavity is arranged in a fixed die frame, a lower die cavity is arranged in a movable die frame, a slide block is obliquely arranged in the lower die cavity, the inclination angle of the slide blocks on two sides is consistent with the angle of an elbow, a core is arranged inside the slide block, a plurality of die cavities are formed among the upper die cavity, the lower die cavity and the core, a material pushing plate is arranged inside an upper compound plate, a main runner is arranged on the fixed die frame and is divided into a plurality of runners, the main runner respectively extends to each die cavity in the direction of the upper die cavity, a material pulling rod sequentially penetrates through the upper compound plate and the material pushing plate and extends to the runners, a material pulling and pushing plate screw for limiting the die opening distance of the upper compound plate and the fixed die frame is fixed on the upper compound plate, a limiting screw for limiting the die opening distance of the upper compound plate and the material pushing plate is fixed on the upper compound plate, and an iron hook mechanism for closing the fixed die frame and the movable die frame is also arranged on the side edge of the die. The invention realizes the automatic separation of the runner and the product, does not need to trim the sprue, has no thimble mark and ensures the appearance quality of the product.
Description
Technical Field
The invention belongs to the technical field of dies, and particularly relates to a multi-cavity elbow forming die without an ejector rod and an operation method thereof.
Background
To the mould structure of PVC drainage class 45 degrees elbows commonly used at present, the mould cave number of majority is 2 chambeies, and the goods is kept flat, and the runner adopts side runner to be main, so every goods shaping back all needs the manual work to cut, and production efficiency is low, and manufacturing cost is higher, is difficult to satisfy the demand. If the number of the cavities is increased, the mold is large due to flat placement or staggered arrangement, the flow ratio of the flow channel is long, and the molding is difficult.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a mandril-free multi-cavity elbow forming die and an operation method thereof.
In order to achieve the purpose, the following technical scheme is provided:
the utility model provides a no ejector pin multicavity elbow forming die, including last compound plate, the cover half frame, movable mould frame and lower compound plate, be equipped with the die cavity in the cover half frame, be equipped with down the die cavity in the movable mould frame, be equipped with the layering between cover half frame and the movable mould frame, the slope is equipped with the slider in the die cavity down, the slider inboard is equipped with the core, the angle that the core slope of both sides becomes is unanimous with the elbow angle, go up the die cavity, constitute a plurality of mould chambeies between lower die cavity and the core, it is equipped with the scraping wings to go up the compound plate inboard, be equipped with the sprue on the cover half frame, the sprue divides into many runners, respectively extend to each mould chamber department towards the die cavity direction, the lifter passes in proper order and the scraping wings extends to sprue department, be fixed with on the scraping wings and pushing wings the scraping wings screw that is used for injecing compound plate and cover half frame die sinking distance, be fixed with the spacing screw that is used for injecing compound plate and scraping wings die sinking distance on the compound plate, the side of mould still is equipped with the iron drag hook mechanism that carries out the closure to fixed mould frame in proper order of guaranteeing the die sinking.
Furthermore, a first cavity and a second cavity are formed between the fixed die frame and the movable die frame, the distance of the first cavity extending towards the fixed die frame is equal to the distance of the second cavity extending towards the fixed die frame, the distance of the first cavity extending towards the movable die frame is smaller than the distance of the second cavity extending towards the movable die frame, one end of a screw of the pulling and pushing plate is fixed on the pushing plate, the other end of the screw of the pulling and pushing plate extends into the first cavity, one end of a limiting screw is fixed on the upper compound plate, and the other end of the limiting screw extends into the second cavity.
Furthermore, an ejection flow channel mechanism used for separating the material pulling rod from the flow channel is arranged in the material pushing plate.
Further, the elastic flow channel mechanism comprises a spring and a connecting block, the connecting block is connected with the upper compound plate through the spring and penetrates through the material pushing plate, the spring is in a compression state in a mold closing state, the spring applies an acting force to the connecting block along with the process of opening the mold, the connecting block applies an elastic force to the formed main flow channel, and the difficulty of separation of the later-stage flow channel and the material pulling rod is reduced.
Further, iron drag hook mechanism includes U type fixed plate and deflector, a side of the open end of U type fixed plate is equipped with fixed connection structure, U type fixed plate is equipped with the blind end and the movable mould frame of fixed connection structure's the same side and is connected, fixed connection structure inlays in the side recess of cover half frame, the U type groove of U type fixed plate is inserted to the one end of deflector, the side of the other end is fixed on last compound board, the deflector takes place to remove along with the die sinking between last compound board and the cover half frame, carry out further spacing to the die sinking distance of last compound board and cover half frame.
Furthermore, an inclined limiting groove is formed in the inner wall of the lower cavity and used for installing the sliding block, an inclined guide pillar is arranged on the fixed die frame and penetrates through the sliding block, and the die sinking of the fixed die frame and the movable die frame enables the inclined guide pillar to drive the sliding block to slide in an inclined mode, so that the die sinking of the elbow product is realized.
Furthermore, a point gate is arranged at the joint of the branch runner and the mold cavity, the diameter of the gate is 1-3mm, and the diameter of the end part of the material pulling rod connected with the main runner is 2-5mm, so that the material pulling rod and the main runner can be better separated.
An operation method of the forming die comprises the following steps:
1) After injection molding, the fixed mold frame and the movable mold frame are in a closed state under the action of the U-shaped fixed plate, the upper compound plate and the fixed mold frame are separated firstly along with the progress of mold opening, the molded runner in the branch runner is separated from a product under the action of the material pulling rod, the molded branch runner and the molded main runner are pulled out of the fixed mold frame, meanwhile, the elastic runner mechanism applies elasticity to the main runner, and the guide plate moves along with the upper compound plate;
2) Continuing to open the die, limiting the material pushing plate by a material pulling and pushing plate screw, separating the material pushing plate from the upper compound plate, separating the material pulling rod from the formed main runner, dropping the formed runner, and limiting the distance between the upper compound plate and the material pushing plate by a limiting screw in the separation process;
3) And detaching the U-shaped fixing plate, opening the fixed die frame and the movable die frame, driving the slide block to slide obliquely along with the opening of the die, and enabling the molded product to automatically drop.
The invention has the beneficial effects that:
1) The core pulling directions of the products are arranged on two sides, the products are arranged in a straight line, the space of the die is saved, the number of cavities is doubled, and the production efficiency is greatly improved;
2) The product is compactly arranged, the flow ratio of a flow passage is reduced, and injection molding is facilitated;
3) The runner and the product are automatically separated by a simple three-plate mold structure, the sprue of the product does not need to be manually trimmed, and the manual strength is reduced;
4) Core pulling is performed through two sides of the sliding block to form a certain angle with the direction of the product, the product is guaranteed to automatically fall, no thimble mark exists, and the appearance quality of the product is guaranteed.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic perspective view of the iron retractor mechanism of the present invention;
FIG. 3 is a schematic view of the arrangement of the slider according to the present invention;
FIG. 4 is a schematic structural view of the inside of the mold frame of the present invention;
fig. 5 is a schematic structural view of the movable mold frame of the present invention.
In the figure: 1. an upper compound plate; 11. a material pushing plate; 2. a fixed mould frame; 21. a first cavity; 22. a second cavity; 23. an inclined guide post; 3. moving the mold frame; 31. a limiting groove; 4. a lower compound plate; 5. a slider; 51. a core; 6. pulling a material rod; 7. pulling and pushing a screw of the material plate; 8. a limit screw; 9. an iron hook mechanism; 91. a U-shaped fixing plate; 911. a fixed connection structure; 92. a guide plate; 10. a bullet flow channel mechanism; 101. a spring; 102. and (7) connecting the block.
Detailed Description
The invention will be further described with reference to the drawings attached to the description, but the scope of protection of the invention is not limited thereto.
As shown in figures 1 to 5, a multi-cavity elbow forming die without a mandril comprises an upper compound plate 1, a fixed die frame 2, a movable die frame 3, a lower compound plate 4, a slide block 5, a material pulling rod 6, a material pulling and pushing plate screw 7, a limiting screw 8, an iron drag hook mechanism 9 and an elastic runner mechanism 10, wherein the inner side of the upper compound plate 1 connected with the fixed die frame 2 is provided with a material pushing plate 11, the side of the fixed die frame 2 is provided with a main runner, an upper die cavity is arranged in the fixed die frame 2, a lower die cavity is arranged in the movable die frame 3, a depression bar is arranged between the fixed die frame 2 and the movable die frame 3, the fixed die frame 2 is provided with an inclined guide post 23, the inner wall of the lower die cavity is provided with an inclined limiting groove 31, the limiting groove 31 is used for installing the slide block 5, the inner side of the slide block 5 is provided with a core 51, the angle formed by the inclination of the cores 51 at two sides is consistent with the angle of an elbow, a plurality of the upper die cavity, the lower die cavity and the core 51, the main runner is divided into a plurality of multiple runner, the branch runners are extended to each die cavity, the material pulling rod 6 sequentially penetrates through the upper compound plate 1 and the material pushing plate 11 to extend to a main runner, the material ejecting runner mechanism 10 comprises a spring 101 and a connecting block 102, the connecting block 102 is connected with the upper compound plate 1 through the spring 101 and penetrates through the material pushing plate 11, a first cavity 21 and a second cavity 22 are formed between the fixed die frame 2 and the movable die frame 3, the distance of the first cavity 21 extending towards the fixed die frame 2 is equal to the distance of the second cavity 22 extending towards the fixed die frame 2, the distance of the first cavity 21 extending towards the movable die frame 3 is smaller than the distance of the second cavity 22 extending towards the movable die frame 3, one end of a material pulling and pushing plate screw 7 is fixed on the material pushing plate 11, the other end of the material pulling and pushing plate screw extends into the first cavity 21, one end of a limiting screw 8 is fixed on the upper compound plate 1, the other end of the material pulling and pushing plate extends into the second cavity 22, the material pulling and pushing plate screw 7 is used for limiting the opening distance of the upper compound plate 1 and the fixed die frame 2, the limiting screw 8 is used for limiting the die sinking distance between the upper compound plate 1 and the material pushing plate 11, the iron drag hook mechanism 9 comprises a U-shaped fixing plate 91 and a guide plate 92, a fixed connection structure 911 is arranged on one side face of the opening end of the U-shaped fixing plate 91, the same side face of the U-shaped fixing plate 91 with the fixed connection structure 911 is connected with the movable die frame 3, the fixed connection structure 911 is embedded into a side face groove of the fixed die frame 2, one end of the guide plate 92 is inserted into a U-shaped groove of the U-shaped fixing plate 91, the side face of the other end is fixed on the upper compound plate 1, and the two sides of the material pulling and pushing plate screw 7 and the two sides of the limiting screw 8 are respectively provided with one.
An operation method of a mandril-free multi-cavity elbow forming die comprises the following steps:
1) After injection molding, the fixed mold frame 2 and the movable mold frame 3 are in a closed state under the action of the U-shaped fixing plate 91, the upper compound plate 1 and the fixed mold frame 2 are separated firstly along with the progress of mold opening, the connecting point of the branch runner and a molded product is disconnected under the action of the material pulling rod 6, the runner molded in the branch runner is separated from the product, the molded branch runner and the main runner are pulled out of the fixed mold frame 2 together, meanwhile, the elastic runner mechanism 10 applies elasticity to the main runner, the difficulty in later separation is reduced, and the guide plate 92 moves along with the upper compound plate 1;
2) Continuing to open the die, pulling and pushing a material plate screw 7 to limit the material pushing plate 11, separating the material pushing plate 11 from the upper compound plate 1, separating a material pulling rod 6 from a formed main runner, enabling the formed runner to fall off, and limiting the distance between the upper compound plate 1 and the material pushing plate 11 by a limiting screw 8 in the separation process;
3) The U-shaped fixing plate 91 is detached, the fixed mold frame 2 and the movable mold frame 3 are opened, the inclined guide column 23 drives the slide block 5 to slide obliquely along with the opening of the mold, and the molded product automatically drops.
Claims (8)
1. The utility model provides a no ejector pin multicavity elbow forming die, including compound board (1), cover half frame (2), movable mould frame (3) and lower compound board (4), be equipped with the die cavity in cover half frame (2), be equipped with down the die cavity in movable mould frame (3), be equipped with the layering between cover half frame (2) and movable mould frame (3), its characterized in that time die cavity slope is equipped with slider (5), slider (5) inboard is equipped with core (51), both sides core (51) slope becomes the angle unanimous with the elbow angle, go up the die cavity, constitute a plurality of mould cavities between lower die cavity and the core (51), it is equipped with scraping wings (11) to go up compound board (1) inboard, be equipped with the sprue on cover half frame (2), the sprue is divided into many runners, respectively extend to each mould cavity department up die cavity direction, material pulling rod (6) pass in proper order and go up compound board (1) and scraping wings (11) and extend to sprue department, be fixed with on scraping wings (11) and be used for injecing compound board (1) and mould board (7) and the fixed on the mould frame (9) carry out the limit mechanism that mould drag hook (9) and carry out compound board (8).
2. The ejector-rod-free multi-cavity elbow forming die is characterized in that a first cavity (21) and a second cavity (22) are formed between a fixed die frame (2) and a movable die frame (3), the distance from the first cavity (21) to the fixed die frame (2) is equal to the distance from the second cavity (22) to the fixed die frame (2), the distance from the first cavity (21) to the movable die frame (3) is smaller than the distance from the second cavity (22) to the movable die frame (3), one end of a pulling and pushing plate screw (7) is fixed to a pushing plate (11), the other end of the pulling and pushing plate screw extends into the first cavity (21), one end of a limiting screw (8) is fixed to an upper compound plate (1), and the other end of the limiting screw extends into the second cavity (22).
3. The ejector-free multi-cavity elbow molding die as claimed in claim 2, wherein the ejector plate (11) is provided with an ejection channel mechanism (10) for separating the material pulling rod (6) from the channel.
4. A multi-cavity bend forming die without ejector pin according to claim 3, characterized in that the spring channel mechanism (10) comprises a spring (101) and a connecting block (102), and the connecting block (102) is connected with the upper replica (1) through the spring (101) and penetrates through the material pushing plate (11).
5. The multi-cavity elbow forming die without the ejector rod as claimed in claim 1, wherein the iron hook mechanism (9) comprises a U-shaped fixing plate (91) and a guide plate (92), a fixed connecting structure (911) is arranged on one side surface of the opening end of the U-shaped fixing plate (91), the closed end of the same side surface of the U-shaped fixing plate (91) with the fixed connecting structure (911) is connected with the movable die frame (3), the fixed connecting structure (911) is embedded into a side surface groove of the fixed die frame (2), one end of the guide plate (92) is inserted into a U-shaped groove of the U-shaped fixing plate (91), and the side surface of the other end is fixed on the upper compound plate (1).
6. The multi-cavity ejector-rod-free elbow forming mold according to claim 5, wherein the inner wall of the lower cavity is provided with an inclined limiting groove (31), the limiting groove (31) is used for mounting the sliding block (5), the fixed mold frame (2) is provided with the inclined guide post (23), the inclined guide post (23) penetrates through the sliding block (5), and the mold opening of the fixed mold frame (2) and the movable mold frame (3) enables the inclined guide post (23) to drive the sliding block (5) to slide obliquely, so that the elbow product is demolded.
7. The ejector-free multi-cavity elbow molding mold according to claim 6, wherein the junction of the branch runners and the mold cavity is a point gate, the gate has a diameter of 1-3mm, and the end of the pulling rod (6) connected with the main runner has a diameter of 2-5mm.
8. A method of operating a forming die as claimed in claim 7, comprising the steps of:
1) after injection molding, a fixed mold frame (2) and a movable mold frame (3) are in a closed state under the action of a U-shaped fixing plate (91), an upper compound plate (1) and the fixed mold frame (2) are separated firstly along with the progress of mold opening, a runner formed in a branch runner is separated from a product under the action of a material pulling rod (6), the formed branch runner and a main runner are pulled out of the fixed mold frame (2), meanwhile, an elastic runner mechanism (10) applies elasticity to the main runner, and a guide plate (92) moves along with the upper compound plate (1);
2) Continuously opening the die, pulling and pushing a material plate screw (7) to limit the material pushing plate (11), separating the material pushing plate (11) from the upper compound plate (1), separating a material pulling rod (6) from a formed main runner, enabling the formed runner to fall off, and limiting the distance between the upper compound plate (1) and the material pushing plate (11) by a limiting screw (8) in the separation process;
3) The U-shaped fixing plate (91) is detached, the fixed die frame (2) and the movable die frame (3) are opened, the inclined guide post (23) drives the sliding block (5) to slide obliquely along with the opening of the die, and the molded product automatically drops.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211206865.4A CN115556310A (en) | 2022-09-30 | 2022-09-30 | Ejector-rod-free multi-cavity elbow forming die and operation method thereof |
| PCT/CN2023/102664 WO2024066534A1 (en) | 2022-09-30 | 2023-06-27 | Multi-cavity elbow forming mold without ejector rod and operating method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211206865.4A CN115556310A (en) | 2022-09-30 | 2022-09-30 | Ejector-rod-free multi-cavity elbow forming die and operation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115556310A true CN115556310A (en) | 2023-01-03 |
Family
ID=84742532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211206865.4A Pending CN115556310A (en) | 2022-09-30 | 2022-09-30 | Ejector-rod-free multi-cavity elbow forming die and operation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115556310A (en) |
| WO (1) | WO2024066534A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066534A1 (en) * | 2022-09-30 | 2024-04-04 | 临海伟星新型建材有限公司 | Multi-cavity elbow forming mold without ejector rod and operating method therefor |
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| JP2003236875A (en) * | 2002-02-13 | 2003-08-26 | Sanyo Seiko:Kk | Pipe manufacturing method, injection mold for manufacturing pipe, and pipe having peculiar shape |
| CN202357386U (en) * | 2011-11-18 | 2012-08-01 | 浙江伟星新型建材股份有限公司 | Mould core demoulding transmission structure of bridging elbow mould |
| CN202640664U (en) * | 2012-04-10 | 2013-01-02 | 永高股份有限公司 | Vertical plastic die for gap bridge elbow |
| CN109080051A (en) * | 2018-09-29 | 2018-12-25 | 浙江伟星新型建材股份有限公司 | A kind of non-disengaged multiple liftout attachment of mold |
| CN208745218U (en) * | 2018-05-17 | 2019-04-16 | 浙江伟星新型建材股份有限公司 | A kind of Three-board-mould structure |
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| CN215320325U (en) * | 2021-11-26 | 2021-12-28 | 佛山市南海专高模具有限公司 | Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115556310A (en) * | 2022-09-30 | 2023-01-03 | 临海伟星新型建材有限公司 | Ejector-rod-free multi-cavity elbow forming die and operation method thereof |
-
2022
- 2022-09-30 CN CN202211206865.4A patent/CN115556310A/en active Pending
-
2023
- 2023-06-27 WO PCT/CN2023/102664 patent/WO2024066534A1/en unknown
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| JP2003236875A (en) * | 2002-02-13 | 2003-08-26 | Sanyo Seiko:Kk | Pipe manufacturing method, injection mold for manufacturing pipe, and pipe having peculiar shape |
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| CN202640664U (en) * | 2012-04-10 | 2013-01-02 | 永高股份有限公司 | Vertical plastic die for gap bridge elbow |
| CN208745218U (en) * | 2018-05-17 | 2019-04-16 | 浙江伟星新型建材股份有限公司 | A kind of Three-board-mould structure |
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| CN215320325U (en) * | 2021-11-26 | 2021-12-28 | 佛山市南海专高模具有限公司 | Injection molding combined die for feeding glue into hot runner on end surface of pipe fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024066534A1 (en) * | 2022-09-30 | 2024-04-04 | 临海伟星新型建材有限公司 | Multi-cavity elbow forming mold without ejector rod and operating method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024066534A1 (en) | 2024-04-04 |
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