CN116394475B - Movable core pulling mechanism for front mold of transparent product - Google Patents
Movable core pulling mechanism for front mold of transparent productInfo
- Publication number
- CN116394475B CN116394475B CN202310574846.5A CN202310574846A CN116394475B CN 116394475 B CN116394475 B CN 116394475B CN 202310574846 A CN202310574846 A CN 202310574846A CN 116394475 B CN116394475 B CN 116394475B
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- CN
- China
- Prior art keywords
- movable
- mold
- core
- fixed
- plate
- 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.)
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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
- 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
- B29C45/332—Mountings or guides therefor; Drives therefor
-
- 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
- B29C45/44—Removing or ejecting moulded articles for undercut articles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
本发明公开了一种透明制品前模可动式抽芯机构，包括定模中心型芯、定模可动型芯、推板、第一动模型芯以及第二动模型芯；推板和定模可动型芯设置在定模中心型芯上并可相对运动；动模板与推板之间设有拉杆；开模过程中，动模板移动第二设定距离后，动模板通过拉杆拉动推板运动，使得推板推动制品和定模可动型芯一同向动模板一侧运动；当推板运动第一设定距离后，定模可动型芯停止运动，拉杆继续拉动运动，并推动制品继续运动，使得制品与定模型腔分离。本发明公开的透明制品前模可动式抽芯机构可以实现在开模过程中可以随制品运动，使得制品从型腔中脱离一定距离后再进行二次脱模，该结构新颖生产安全可靠，并且结构简单、布局合理。
The present invention discloses a movable core-pulling mechanism for a front mold of a transparent product, comprising a fixed mold central core, a fixed mold movable core, a push plate, a first movable mold core, and a second movable mold core; the push plate and the fixed mold movable core are arranged on the fixed mold central core and can move relative to each other; a pull rod is provided between the movable mold plate and the push plate; during the mold opening process, after the movable mold plate moves a second set distance, the movable mold plate pulls the push plate to move via the pull rod, so that the push plate pushes the product and the fixed mold movable core to move toward one side of the movable mold plate; after the push plate moves the first set distance, the fixed mold movable core stops moving, the pull rod continues to pull and move, and pushes the product to continue moving, so that the product is separated from the fixed mold cavity. The movable core-pulling mechanism for a front mold of a transparent product disclosed by the present invention can move with the product during the mold opening process, so that the product can be demolded again after being separated from the mold cavity by a certain distance. The structure is novel, safe and reliable in production, and has a simple structure and a reasonable layout.
Description
Technical Field
The invention relates to the technical field of dies, in particular to a front die movable core-pulling mechanism for transparent products.
Background
For products with appearance requirements, particularly transparent products, the residual gate and ejection mark on the surface can influence the appearance quality of the products. Therefore, for the product, the gate position can only be arranged at the inner side of the product, when the packing force of the product in the fixed die is large, the product can be left in the fixed die after injection molding, the product is required to be taken out of the fixed die cavity in a manual or fixed die ejection mode, the production efficiency is low, the defective product rate is high, and particularly for the product with the back-off shape in the center of the product, the problems of deformation scratch and the like on the surface of the product can be caused if a conventional forced demoulding mode is adopted, and the requirement of customers on the product is difficult to meet.
Disclosure of Invention
The invention provides a front mold movable core pulling mechanism of a transparent product aiming at the problems.
The invention adopts the following technical means:
a movable core pulling mechanism of a transparent product front mold comprises a fixed mold center core, a fixed mold movable core, a push plate, a first movable mold core and a second movable mold core;
the fixed die center core is fixedly arranged on the fixed die plate, and a fixed die cavity is arranged on the fixed die center core;
the fixed die movable core is arranged in the fixed die cavity, and can move to one side of the movable die plate by a first set distance relative to the fixed die center core;
the push plate is arranged in a push plate mounting groove of the fixed template;
the first movable mould core is arranged on the movable mould plate, and a movable mould cavity is arranged in the first movable mould core;
the second movable mold core is arranged in the movable mold cavity;
A pull rod is arranged between the movable template and the push plate;
when the mold is closed, the fixed mold cavity and the movable mold cavity are buckled to form a product cavity;
When the die is opened, after the movable die plate moves a second set distance to the side far away from the fixed die plate, the movable die plate can pull the push plate to move to the side of the movable die plate through the pull rod, so that the push plate pushes the product in the product cavity and the fixed die movable core to move to the side of the movable die plate together;
After the push plate moves to one side of the movable die plate for a first set distance, the movable core of the fixed die is limited by the central core of the fixed die to stop moving, and the pull rod continuously pulls the push plate to move to one side of the movable die plate, so that the push plate pushes the product to continuously move to one side of the movable die plate, and the product is separated from the cavity of the fixed die.
Further, a fixed die movable core mounting groove is formed in the bottom of the fixed die cavity, pin sliding grooves are formed in two side walls of the fixed die movable core mounting groove, the fixed die movable core is arranged in the fixed die movable core mounting groove, pins are arranged on two sides of the fixed die movable core, the other ends of the pins are arranged in the pin sliding grooves, and the fixed die movable core can move in the fixed die movable core mounting groove and is limited by the pin sliding grooves in a moving distance.
Further, a first limit screw is further arranged between the movable core of the fixed mold and the central core of the fixed mold, a first limit screw through hole is formed in the movable core of the fixed mold, the first limit screw penetrates through the first limit screw through hole to be connected with the central core of the fixed mold, and the movable core of the fixed mold can move relative to the first limit screw.
Further, a polyurethane spring is further arranged on one side, facing the first movable mold core, of the push plate, and when the mold is closed, the first movable mold core extrudes the polyurethane spring, so that the polyurethane spring pushes the push plate to be abutted in the push plate mounting groove.
Further, a pull rod sliding groove is formed in the movable die plate, a pull rod through hole is formed in the first movable die core, the pull rod is arranged in the pull rod sliding groove, one end of the pull rod penetrates through the pull rod through hole and then is connected with the push plate, and when the movable die plate moves to one side far away from the fixed die plate, the head of the pull rod can move in the pull rod sliding groove.
Further, a limiting block is arranged in the pull rod sliding groove.
Further, a guide post is further arranged on the fixed die plate, a push plate guide hole and a moving die core abdicating hole are respectively arranged on the push plate and the first moving die core, one end of the guide post is fixed on the fixed die plate, and the other end of the guide post penetrates through the push plate guide hole and then is inserted into the moving die core abdicating hole.
Further, a second limit screw is further arranged between the fixed die plate and the push plate.
Further, the glue injection port is arranged on the fixed template.
Compared with the prior art, the movable core pulling mechanism of the transparent product front mold has the advantages that due to the fact that the fixed mold center core, the fixed mold movable core and the push plate are arranged, and the movable mold plate is connected with the push plate through the pull rod, when the mold is opened, the movable mold plate can be pulled in the process of moving to the side far away from the movable mold plate, so that a product can be conveniently separated from a cavity, namely, the movable core is designed at the back-off position of the fixed mold center, can move along with the product in the mold opening process, and can be subjected to secondary demolding after being separated from the cavity for a certain distance.
Drawings
FIG. 1 is a schematic view of a mold in a closed state having a movable core-pulling mechanism for a front mold of a transparent article according to the present disclosure;
FIG. 2 is a schematic view of a mold having a movable core-pulling mechanism for a front mold of a transparent article according to the present invention after a movable platen moves a distance L2 away from a stationary platen;
FIG. 3 is a schematic view of a mold having a movable core-pulling mechanism for a front mold of a transparent article according to the present invention after a movable mold plate moves a distance L1+L2 away from a fixed mold plate;
FIG. 4 is a schematic view of a mold article having a front mold movable core-pulling mechanism for a transparent article according to the present disclosure when the mold article is released;
FIG. 5 is a block diagram of the article at the article cavity;
FIG. 6 is a block diagram of a stationary mold core center;
In the figure, 1, a fixed die center core, 10, a fixed die cavity, 11, a fixed die movable core mounting groove, 12, a pin sliding groove, 13, a pin, 14 and a first limit screw;
2. the first limit screw through hole;
3. The device comprises a push plate, a polyurethane spring mounting groove, a push plate guide hole and a polyurethane spring mounting groove, wherein the push plate is provided with a guide hole;
4. A first movable mold core; 40, a movable mould cavity, 41, a pull rod through hole, 42, a movable mould core abdication hole;
5. A second movable mold core;
6. the fixed die plate, 60, a push plate mounting groove, 61, a guide post, 62, a second limit screw;
7. the movable template, 70, a pull rod chute, 71 and a limiting block;
8. a pull rod;
9. an article of manufacture.
Detailed Description
As shown in fig. 1, 2 and 3, the transparent product front mold movable core pulling mechanism disclosed by the invention comprises a fixed mold center core 1, a fixed mold movable core 2, a push plate 3, a first movable mold core 4 and a second movable mold core 5;
The fixed die center core 1 is fixedly arranged on the fixed die plate 6, a fixed die cavity 10 is arranged on the fixed die center core 1, and a glue injection port is arranged on the fixed die plate 6;
In the embodiment, as shown in fig. 6, a fixed mold movable core mounting groove 11 is formed in the bottom of the fixed mold cavity 10, pin sliding grooves 12 are formed in two side walls of the fixed mold movable core mounting groove 11, the fixed mold movable core 2 is arranged in the fixed mold movable core mounting groove 11, pins 13 are arranged on two sides of the fixed mold movable core 2, the other ends of the pins 13 are arranged in the pin sliding grooves 12, and the fixed mold movable core 2 can move in the fixed mold movable core mounting groove 11 and is limited by the pin sliding grooves 12 by a first set distance L1;
The push plate 3 is arranged in a push plate mounting groove 60 of the fixed template 6;
the first movable mould core 4 is arranged on the movable mould plate 7, and a movable mould cavity 40 is arranged in the first movable mould core 4;
The second movable mold core 5 is arranged in the movable mold cavity 40, and the second movable mold core 5 is fixedly connected with the first movable mold core through a screw;
A pull rod 8 is arranged between the movable template 7 and the push plate 3, specifically, a pull rod sliding groove 70 is arranged on the movable template 7, a pull rod through hole 41 is arranged in the first movable model core 4, the pull rod 8 is arranged in the pull rod sliding groove 70, one end of the pull rod 8 penetrates through the pull rod through hole 41 and then is connected with the push plate 3, and the length of the pull rod 8 is longer than the distance between the pull rod sliding groove and the push plate during die assembly, so that when the movable template 7 moves towards the side far away from the fixed template 6, the head part of the pull rod 8 can move in the pull rod sliding groove 70;
When the mold is closed, the fixed mold cavity 10 and the movable mold cavity 40 are buckled to form a product cavity, and pouring materials can be injected into the product cavity through the glue injection port to form a product;
when the mold is opened, the movable mold plate 7 moves a second set distance L2 to the side far away from the fixed mold plate 6, wherein the second set distance is the distance between the head of the pull rod and the bottom of the pull rod sliding chute during mold closing, and the movable mold plate 7 can pull the push plate 3 to move to the side of the movable mold plate 7 through the pull rod 8, so that the push plate 3 pushes a product 9 in the product cavity to move to the side of the movable mold plate 7 together with the fixed mold movable mold core 2;
After the push plate 3 moves towards the side of the movable die plate 7 by the first set distance, the movable core 2 of the fixed die is limited by the center core 1 of the fixed die and stops moving, the pull rod 8 continues to pull the push plate 3 to move towards the side of the movable die plate 7, so that the push plate 3 pushes the product 9 to move towards the side of the movable die plate 7 continuously, and the product 9 is separated from the cavity 10 of the fixed die.
The process of demolding the product by the mold with the transparent product front mold movable core-pulling mechanism disclosed by the invention is as follows:
At the moment, the mold is in a mold closing state as shown in fig. 1, at the moment, glue is injected into a product cavity through a glue injection port to form a product, and the product is in an inverted buckle shape as shown in fig. 5, and all surfaces of the product are glossy surfaces;
As shown in fig. 2, in the mold opening process, the movable mold plate drives the first movable mold core and the second movable mold core to move to a side far away from the fixed mold plate (in the direction shown by arrow a in the figure) by a second set distance L2, at this stage, since the head of the pull rod is not in contact with the movable mold plate, the push plate, the product, the fixed mold movable core and the pull rod are in a static state, and the product is separated from the movable mold cavity;
As shown in fig. 3, when the movable mold plate continues to move to the side far away from the fixed mold plate, the head of the pull rod is contacted with the limiting block arranged in the movable mold plate, and pulls the push plate, the product and the movable core of the fixed mold to move to the side far away from the fixed mold plate together through the pull rod, the central core of the fixed mold is static, in the process, the push plate pushes the end part of the product to gradually separate the product from the central core of the fixed mold, when the push plate moves by a first set distance L1 relative to the central core of the fixed mold (at the moment, the total moving distance of the movable mold plate relative to the fixed mold plate is L1 +L2), pins at two sides of the movable core of the fixed mold are contacted with the bottom edges of the pin sliding grooves on the central core of the fixed mold and limited;
As shown in fig. 4, after the movable core of the fixed mold is limited and stopped by the central core of the fixed mold, the movable mold plate continues to move to the side far away from the fixed mold plate by pulling the push plate through the pull rod, and at the moment, the push plate pushes the product to be separated from the fixed mold cavity, so that the demolding of the product is completed.
The movable core pulling mechanism of the transparent product front mold disclosed by the invention is provided with the fixed mold center core, the fixed mold movable core and the push plate structure, and the movable mold plate is connected with the push plate through the pull rod, so that the movable mold plate can pull the push plate in the process of moving towards one side far away from the movable mold plate when the mold is opened, thereby conveniently separating a product from a cavity, namely, the movable core is designed at the back-off position of the fixed mold center, and the product can move along with the product in the mold opening process, so that the product is separated from the cavity for a certain distance and then subjected to secondary demolding.
Further, a first limit screw 14 is further arranged between the movable core 2 of the fixed mold and the central core 1 of the fixed mold, a first limit screw through hole 20 is formed in the movable core 2 of the fixed mold, the first limit screw through hole 20 is a stepped hole, the aperture of one side, close to the head of the first limit screw, of the first limit screw is larger than that of the head of the first limit screw, the first limit screw 14 penetrates through the first limit screw through hole 20 to be connected with the central core 1 of the fixed mold, the movable core 2 of the fixed mold can move relative to the first limit screw 14, and the first limit screw can limit and fix the movable core of the fixed mold so as to prevent the movable core of the fixed mold from falling off in the working process of the mold.
Further, a polyurethane spring 30 is further disposed on a side of the push plate 3 facing the first movable mold core 4, during mold closing, the first movable mold core 4 extrudes the polyurethane spring 30, so that the polyurethane spring 30 pushes the push plate 3 to be abutted in the push plate mounting groove 60, specifically, a polyurethane spring mounting groove is disposed on a side of a groove-shaped movable mold plate of the push plate 3, the polyurethane spring 30 is fixed in the polyurethane spring mounting groove through a screw, the length of the polyurethane spring 30 is slightly greater than the depth of the polyurethane spring mounting groove, during mold closing, the first movable mold core can extrude the polyurethane spring 30, the polyurethane spring 30 is compressed to extrude the push plate against the push plate mounting groove 60, the polyurethane spring is arranged to release the instantaneous spring pressure when the mold is opened, the push plate and the movable core related parts of the center fixed mold can be pushed, and the position of the movable core assembly (the push plate and the movable mold core) is prevented from moving when the mold is opened.
Further, a limiting block 71 is further disposed in the pull rod chute 70 to adjust the pull rod die-opening stroke, and improve the die stability and the die life.
Further, the fixed die plate 6 is further provided with a guide post 61, the push plate 6 and the first movable die core 4 are respectively provided with a push plate guide hole 32 and a movable die core abdication hole 42, one end of the guide post 61 is fixed on the fixed die plate 6, and the other end of the guide post passes through the push plate guide hole 32 and then is inserted into the movable die core abdication hole 42, so that stable and reliable operation of the push plate in the moving process can be ensured.
Further, a second limit screw 62 is further arranged between the fixed die plate 6 and the push plate 3, and the second limit screw can limit the movement stroke of the push plate, so that products are ensured to be completely separated from the die cavity, and the push plate is prevented from being separated from the fixed die plate.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (8)
1. The movable core pulling mechanism of the transparent product front mold is characterized by comprising a fixed mold center core, a fixed mold movable core, a push plate, a first movable mold core and a second movable mold core;
the fixed die center core is fixedly arranged on the fixed die plate, and a fixed die cavity is arranged on the fixed die center core;
the fixed die movable core is arranged in the fixed die cavity, and can move to one side of the movable die plate by a first set distance relative to the fixed die center core;
the push plate is arranged in a push plate mounting groove of the fixed template;
the first movable mould core is arranged on the movable mould plate, and a movable mould cavity is arranged in the first movable mould core;
the second movable mold core is arranged in the movable mold cavity;
A pull rod is arranged between the movable template and the push plate;
when the mold is closed, the fixed mold cavity and the movable mold cavity are buckled to form a product cavity;
When the die is opened, after the movable die plate moves a second set distance to the side far away from the fixed die plate, the movable die plate can pull the push plate to move to the side of the movable die plate through the pull rod, so that the push plate pushes a product in the product cavity to move to the side of the movable die plate together with the movable die core of the fixed die;
After the push plate moves to one side of the movable die plate for the first set distance, the movable core of the fixed die is limited by the central core of the fixed die and stops moving, and the pull rod continuously pulls the push plate to move to one side of the movable die plate, so that the push plate pushes the product to continuously move to one side of the movable die plate, and the product is separated from the cavity of the fixed die;
The movable core of cover half is equipped with the movable core mounting groove of cover half bottom the die cavity of cover half, be equipped with the pin spout on the movable core mounting groove both sides wall of cover half, the movable core of cover half sets up in the movable core mounting groove of cover half, the movable core both sides of cover half are equipped with the pin, the other end setting of pin is in the pin spout, the movable core of cover half can be in movable core mounting groove of cover half removes and by its distance of movement is limited to the pin spout.
2. The movable core pulling mechanism of the front mold of the transparent product of claim 1, wherein a first limit screw is further arranged between the movable core of the fixed mold and the central core of the fixed mold, a first limit screw through hole is formed in the movable core of the fixed mold, the first limit screw penetrates through the first limit screw through hole to be connected with the central core of the fixed mold, and the movable core of the fixed mold can move relative to the first limit screw.
3. The movable core pulling mechanism of a front mold of a transparent product according to claim 1 or 2, wherein a polyurethane spring is further arranged on one side of the push plate facing the first movable mold core, and when the mold is closed, the first movable mold core presses the polyurethane spring, so that the polyurethane spring pushes the push plate to be abutted in the push plate mounting groove.
4. The movable core pulling mechanism of a front mold of a transparent product according to claim 3, wherein a pull rod sliding groove is formed in the movable mold plate, a pull rod through hole is formed in the first movable mold core, the pull rod is arranged in the pull rod sliding groove, one end of the pull rod penetrates through the pull rod through hole and then is connected with the push plate, and when the movable mold plate moves to the side far away from the fixed mold plate, the head of the pull rod can move in the pull rod sliding groove.
5. The movable core pulling mechanism of a transparent product front mold according to claim 4, wherein a limiting block is further arranged in the pull rod sliding groove.
6. The movable core pulling mechanism of a transparent product front mold according to claim 5, wherein the fixed mold plate is further provided with a guide post, the push plate and the first movable mold core are respectively provided with a push plate guide hole and a movable mold core abdication hole, one end of the guide post is fixed on the fixed mold plate, and the other end of the guide post is inserted into the movable mold core abdication hole after passing through the push plate guide hole.
7. The movable core pulling mechanism of a transparent product front mold of claim 1, wherein a second limit screw is further arranged between the fixed mold plate and the push plate.
8. The movable core pulling mechanism for the front mold of a transparent product according to claim 1, wherein the glue injection port is arranged on the fixed mold plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310574846.5A CN116394475B (en) | 2023-05-19 | 2023-05-19 | Movable core pulling mechanism for front mold of transparent product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310574846.5A CN116394475B (en) | 2023-05-19 | 2023-05-19 | Movable core pulling mechanism for front mold of transparent product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116394475A CN116394475A (en) | 2023-07-07 |
| CN116394475B true CN116394475B (en) | 2025-09-16 |
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| CN202310574846.5A Active CN116394475B (en) | 2023-05-19 | 2023-05-19 | Movable core pulling mechanism for front mold of transparent product |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200441433Y1 (en) * | 2007-03-12 | 2008-08-18 | (주) 선일 | Inner undercut treating device for injection molding |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100897265B1 (en) * | 2007-11-28 | 2009-05-14 | 현대자동차주식회사 | Plastic Injection Molding Device |
| JP5369474B2 (en) * | 2008-04-07 | 2013-12-18 | セイコーエプソン株式会社 | Mold |
| CN208288994U (en) * | 2018-06-15 | 2018-12-28 | 广东科技学院 | A metal powder precision injection mold |
| CN108859002A (en) * | 2018-08-16 | 2018-11-23 | 寇长花 | A kind of manufacturing method with screw column moulding |
| CN109397637A (en) * | 2018-09-30 | 2019-03-01 | 寇长花 | A kind of automobile armrest lid injection mold |
| CN209812902U (en) * | 2019-03-26 | 2019-12-20 | 中国华录·松下电子信息有限公司 | A mold that can guarantee the appearance quality of optically transparent products |
| CN113276365B (en) * | 2021-06-30 | 2023-12-15 | 广东华睿智连电子科技有限公司 | Injection mold structure with fixed and movable molds capable of being forcibly demolded twice |
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- 2023-05-19 CN CN202310574846.5A patent/CN116394475B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200441433Y1 (en) * | 2007-03-12 | 2008-08-18 | (주) 선일 | Inner undercut treating device for injection molding |
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| CN116394475A (en) | 2023-07-07 |
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