CN102862273B - Secondary demoulding mechanism with gear and racks for injection mould - Google Patents
Secondary demoulding mechanism with gear and racks for injection mould Download PDFInfo
- Publication number
- CN102862273B CN102862273B CN201210347309.9A CN201210347309A CN102862273B CN 102862273 B CN102862273 B CN 102862273B CN 201210347309 A CN201210347309 A CN 201210347309A CN 102862273 B CN102862273 B CN 102862273B
- Authority
- CN
- China
- Prior art keywords
- plate
- thimble
- tooth bar
- core
- gripper shoe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a secondary demoulding mechanism with a gear and racks for an injection mould, comprising an upper compound plate and a lower compound plate, wherein a cavity is installed below the upper compound plate; an ejection support plate is installed on the lower compound plate; a through hole is formed in the lower compound plate; the ejection rod of an injection moulding machine penetrates through the through hole and then contacts with the ejection support plate; an ejection needle pushing plate and an ejection needle fixing plate are installed on the ejection support plate; a stripping plate push rod and a return rod are fixed in the ejection needle fixing plate; a return spring is installed outside the return rod; a mould leg is installed on the lower compound plate; a support plate is installed on the mould leg; a core fixing plate, a core and a stripping plate are installed on the support plate; and a moulded plastic part is arranged among the core, the stripping plate and the cavity. The secondary demoulding mechanism with a gear and racks is characterized in that an acceleration rack is fixed between the lower compound plate and the support plate; installation holes are formed in the ejection needle pushing plate and the ejection needle fixing plate; an ejection needle rack and the gear are installed in the installation holes; the gear is fixed in the ejection needle pushing plate via a rotary shaft; the gear is matched with the acceleration rack and the ejection needle rack respectively; an ejection needle is installed on the ejection needle rack; and the ejection needle penetrates through the core and then contacts with the plastic part.
Description
Technical field
The present invention relates to injection mold mould emptier, particularly relate to injection mold rack-and-pinion secondary demolding mechanism, belong to mould of plastics field.
Background technology
At present, adopting mould of plastics to produce similar round plastic part, such as lid etc., the bottom surface of this series products or outer wall are shaped with bulge loop or bead, when traditional moulds produces this series products, is all adopt immediate roof masthead and stripper plate united ejection.But after working of plastics is ejected the core demoulding by stripper plate, bulge loop or bead are but also stuck on stripper plate, working of plastics can not Automatic-falling, also needs manually to take off.Such mould emptier, when mould is produced, not only loses time, also can increase the labour intensity of operative employee, and there is certain potential safety hazard.Further, working of plastics easily produces distortion, breakage, causes working of plastics to scrap.
Summary of the invention
The object of the invention is the shortcoming existed to overcome prior art, providing a kind of gear and tooth bar of adopting to coordinate the demoulding, making push rod accelerate upwards to release working of plastics; the demoulding is smooth; realize automated production, production efficiency is high, ensures the injection mold rack-and-pinion secondary demolding mechanism of working of plastics quality.
The technical scheme of injection mold rack-and-pinion secondary demolding mechanism of the present invention is: comprise compound plate and lower compound plate, under upper compound plate, die cavity is installed, lower compound plate is equipped with and ejects gripper shoe, hole is opened in lower compound plate, injection machine push rod contacts with ejecting below gripper shoe through through hole, be equipped with thimble push plate and thimble fixed head ejecting in gripper shoe, stripper plate push rod and release link is fixed in thimble fixed head, release link installs back-moving spring outward, lower compound plate is installed mould pin, mould pin is equipped with gripper shoe, gripper shoe is equipped with core fixing plate, core and stripper plate, at core, shaping working of plastics is had between stripper plate and die cavity, it is characterized in that fixing between described lower compound plate and gripper shoe accelerating tooth bar, installing hole is had in thimble push plate and thimble fixed head, thimble rack and pinion is equipped with in installing hole, gear is fixed in thimble push plate through rotating shaft, gear matches with acceleration tooth bar and thimble tooth bar respectively, thimble installed by thimble tooth bar, thimble contacts with working of plastics through core.
The invention discloses a kind of injection mold rack-and-pinion secondary demolding mechanism, when working of plastics after moulding, mould die sinking, driven by lower compound plate and eject gripper shoe, thimble push plate, thimble fixed head, mould pin, gripper shoe, core fixing plate, stripper plate and core move backward, core is made to be separated die sinking with die cavity, and continue to move backward, when moving to injection machine push rod position, under injection machine push rod withstands on eject gripper shoe through the through hole of lower compound plate, make to eject the position that gripper shoe rests on injection machine push rod, eject the thimble push plate in gripper shoe, thimble fixed head, stripper plate push rod and release link also maintain static, stripper plate push rod drives stripper plate also to maintain static, and lower compound plate continues to drive gripper shoe through mould pin, core fixing plate and core move backward, working of plastics is made to deviate from core, complete a demoulding.But the bead at working of plastics edge is still stuck on stripper plate, when accelerate tooth bar move to backward be meshed with gear time, accelerate rack drives gear to rotate around rotating shaft, accelerating gear drives thimble tooth bar to move to preacceleration, and thimble tooth bar speed exceedes the speed of stripper plate, like this, thimble rack drives thimble is forward by working of plastics ejection demoulding plate, realize the secondary demoulding, working of plastics falls under gravity in collecting box, and the demoulding completes.This programme injection mold rack-and-pinion secondary demolding mechanism; adopt the cooperation accelerating tooth bar, gear and thimble tooth bar; make mould while die sinking ejects; thimble can release working of plastics to preacceleration; realize the secondary demoulding, product is deviate from smoothly, realizes automated production; production efficiency is high, ensures working of plastics quality.
Injection mold rack-and-pinion secondary demolding mechanism of the present invention, has two installing holes in left and right in described thimble push plate and thimble fixed head, is equipped with thimble rack and pinion separately in two installing holes.Two groups of thimbles withstand on working of plastics, ensure that its demoulding smoothly, steadily.The outer mounting spring of described thimble, both ends of the spring contacts with thimble tooth bar and core respectively.When the die is closed, thimble tooth bar under the action of the spring, can homing more completely.Described installing hole inwall installs Protective sleeve for slide, and Protective sleeve for slide and thimble tooth bar are slidably matched.Thimble tooth bar can make Protective sleeve for slide wear and tear in the slip for a long time of folding mould, and it is convenient that wearing and tearing tail skid sheath is changed, and without the need to monoblock thimble push plate and thimble fixed head being changed, and Protective sleeve for slide can reduce its wearing and tearing.
Accompanying drawing explanation
Fig. 1 is injection mold rack-and-pinion secondary demolding mechanism matched moulds status architecture schematic diagram;
Fig. 2 is the structural representation that after mould die sinking, core deviates from working of plastics state;
Fig. 3 is the structural representation that product is ejected state by thimble.
Detailed description of the invention
The present invention relates to a kind of injection mold rack-and-pinion secondary demolding mechanism, as shown in Fig. 1-Fig. 3, comprise compound plate 1 and lower compound plate 2, die cavity 3 is installed under upper compound plate, lower compound plate 2 is equipped with and ejects gripper shoe 4, hole 5 is opened in lower compound plate, injection machine push rod 6 contacts with ejecting below gripper shoe 4 through through hole 5, be equipped with thimble push plate 7 and thimble fixed head 8 ejecting in gripper shoe, stripper plate push rod 9 and release link 10 is fixed in thimble fixed head, release link installs back-moving spring 11 outward, lower compound plate 2 installs mould pin 12, mould pin is equipped with gripper shoe 13, gripper shoe is equipped with core fixing plate 14, core 15 and stripper plate 16, at core 15, shaping working of plastics 17 is had between stripper plate 16 and die cavity 3, it is characterized in that fixing between described lower compound plate 2 and gripper shoe 13 accelerating tooth bar 18, installing hole 19 is had in thimble push plate 7 and thimble fixed head 8, thimble tooth bar 20 and gear 21 is equipped with in installing hole, gear is fixed in thimble push plate 7 through rotating shaft 22, gear 21 matches with acceleration tooth bar 18 and thimble tooth bar 20 respectively, thimble tooth bar is installed thimble 23, thimble contacts with working of plastics 17 through core 15.When working of plastics 17 after moulding, mould die sinking, driven by lower compound plate 2 and eject gripper shoe 4, thimble push plate 7, thimble fixed head 8, mould pin 12, gripper shoe 13, core fixing plate 14, stripper plate 16 and core 15 move backward, core 15 is made to be separated die sinking with die cavity 3, and continue to move backward, when moving to injection machine push rod 6 position, injection machine push rod withstands on through the through hole 5 of lower compound plate 2 and ejects gripper shoe 4 times, make to eject the position that gripper shoe rests on injection machine push rod 6, eject the thimble push plate 7 in gripper shoe 4, thimble fixed head 8, stripper plate push rod 9 and release link 10 also maintain static, stripper plate push rod drives stripper plate 16 also to maintain static, and lower compound plate 2 continues to drive gripper shoe 13 through mould pin 12, core fixing plate 14 and core 15 move backward, working of plastics 17 is made to deviate from core 15, complete a demoulding.But the bead at working of plastics edge is still stuck on stripper plate 16, when accelerate tooth bar 18 move to backward be meshed with gear 21 time, accelerate tooth bar 18 driven gear to rotate around rotating shaft 22, accelerating gear drives thimble tooth bar 20 to move to preacceleration, and thimble tooth bar 18 speed exceedes the speed of stripper plate 16, like this, thimble tooth bar 18 drives thimble 23 forward by working of plastics 17 ejection demoulding plate 16, realize the secondary demoulding, working of plastics falls under gravity in collecting box, and the demoulding completes.This programme injection mold rack-and-pinion secondary demolding mechanism; adopt the cooperation accelerating tooth bar 18, gear 21 and thimble tooth bar 20; make mould while die sinking ejects; thimble 23 can release working of plastics 17 to preacceleration; realize the secondary demoulding, product is deviate from smoothly, realizes automated production; production efficiency is high, ensures working of plastics quality.Have in described thimble push plate 7 and thimble fixed head 8 in two installing holes in left and right, 19, two installing holes and be equipped with thimble tooth bar 20 and gear 21 separately.Two groups of thimbles 23 withstand on working of plastics 17, ensure that its demoulding smoothly, steadily.The outer mounting spring 24 of described thimble 23, both ends of the spring contacts with thimble tooth bar 20 and core 15 respectively.When the die is closed, thimble tooth bar 20, can homing more completely under spring 24 acts on.Described installing hole 19 inwall installs Protective sleeve for slide 25, and Protective sleeve for slide and thimble tooth bar 20 are slidably matched.Thimble tooth bar 20 can make Protective sleeve for slide 25 wear and tear in the slip for a long time of folding mould, and it is convenient that wearing and tearing tail skid sheath is changed, without the need to monoblock thimble push plate 7 and thimble fixed head 8 being changed.
Claims (1)
1. injection mold rack-and-pinion secondary demolding mechanism, comprise compound plate (1) and lower compound plate (2), die cavity (3) is installed under upper compound plate, lower compound plate (2) is equipped with and ejects gripper shoe (4), hole (5) is opened in lower compound plate, injection machine push rod (6) through through hole (5) with eject gripper shoe (4) and contact below, be equipped with thimble push plate (7) and thimble fixed head (8) ejecting in gripper shoe, stripper plate push rod (9) and release link (10) is fixed in thimble fixed head, release link installs back-moving spring (11) outward, at lower compound plate (2) upper installation mould pin (12), mould pin is equipped with gripper shoe (13), gripper shoe is equipped with core fixing plate (14), core (15) and stripper plate (16), in core (15), shaping working of plastics (17) is had between stripper plate (16) and die cavity (3), it is characterized in that fixing between described lower compound plate (2) and gripper shoe (13) accelerating tooth bar (18), installing hole (19) is had in thimble push plate (7) and thimble fixed head (8), thimble tooth bar (20) and gear (21) is equipped with in installing hole, gear is fixed in thimble push plate (7) through rotating shaft (22), gear (21) matches with acceleration tooth bar (18) and thimble tooth bar (20) respectively, thimble tooth bar is installed thimble (23), thimble contacts with working of plastics (17) through core (15), when working of plastics (17) after moulding, mould die sinking, driven by lower compound plate (2) and eject gripper shoe (4), thimble push plate (7), thimble fixed head (8), mould pin (12), gripper shoe (13), core fixing plate (14), stripper plate (16) and core (15) move backward, core (15) is made to be separated die sinking with die cavity (3), and continue to move backward, when moving to injection machine push rod (6) position, under injection machine push rod withstands on eject gripper shoe (4) through the through hole (5) of lower compound plate (2), make to eject the position that gripper shoe rests on injection machine push rod (6), eject the thimble push plate (7) in gripper shoe (4), thimble fixed head (8), stripper plate push rod (9) and release link (10) also maintain static, stripper plate push rod drives stripper plate (16) also to maintain static, and lower compound plate (2) continues to drive gripper shoe (13) through mould pin (12), core fixing plate (14) and core (15) move backward, working of plastics (17) is made to deviate from core (15), complete a demoulding, but the bead at working of plastics edge is still stuck on stripper plate (16), when accelerate tooth bar (18) move to backward be meshed with gear (21) time, accelerate tooth bar (18) driven gear to rotate around rotating shaft (22), accelerating gear drives thimble tooth bar (20) to move to preacceleration, thimble tooth bar (18) speed exceedes the speed of stripper plate (16), like this, thimble tooth bar (18) drives thimble (23) forward by working of plastics (17) ejection demoulding plate (16), realize the secondary demoulding, working of plastics falls under gravity in collecting box, the demoulding completes, two installing holes (19) in left and right are had in described thimble push plate (7) and thimble fixed head (8), thimble tooth bar (20) and gear (21) is equipped with separately in two installing holes, described thimble (23) outer mounting spring (24), both ends of the spring contacts with thimble tooth bar (20) and core (15) respectively, described installing hole (19) inwall installs Protective sleeve for slide (25), Protective sleeve for slide and thimble tooth bar (20) are slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210347309.9A CN102862273B (en) | 2012-09-19 | 2012-09-19 | Secondary demoulding mechanism with gear and racks for injection mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210347309.9A CN102862273B (en) | 2012-09-19 | 2012-09-19 | Secondary demoulding mechanism with gear and racks for injection mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102862273A CN102862273A (en) | 2013-01-09 |
| CN102862273B true CN102862273B (en) | 2015-06-24 |
Family
ID=47441534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210347309.9A Active CN102862273B (en) | 2012-09-19 | 2012-09-19 | Secondary demoulding mechanism with gear and racks for injection mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102862273B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103991181A (en) * | 2013-10-25 | 2014-08-20 | 温州市文泰笔业有限公司 | Injection mold for demolding |
| CN106182636B (en) * | 2016-08-31 | 2018-09-14 | 宁波方正汽车模具股份有限公司 | Injection mould rack secondary core-pulling mechanism |
| CN107901360B (en) * | 2017-11-29 | 2022-07-05 | 张海勇 | Automatic ejection device with time delay function and mold with same |
| CN109047664A (en) * | 2018-09-13 | 2018-12-21 | 贵州荣南轴承有限公司 | It is a kind of for producing the mold of automobile bearing |
| CN111391255A (en) * | 2020-04-29 | 2020-07-10 | 安徽壹太电气有限公司 | Integrated novel injection molding decoration strip device for freezing |
| CN111703035B (en) * | 2020-06-17 | 2022-06-07 | 东莞市江霖五金实业有限公司 | Ejection device of injection mold |
| CN112517880B (en) * | 2020-12-08 | 2022-04-22 | 东莞市旺佳五金制品有限公司 | Die casting die of precision die casting |
| CN112776280A (en) * | 2020-12-24 | 2021-05-11 | 广东欧億品科技有限公司 | Human body model mould convenient for demoulding |
| CN113085146A (en) * | 2021-03-19 | 2021-07-09 | 石志强 | Quick ejecting device of plastic workpiece side type blow molding |
| CN113815199B (en) * | 2021-10-25 | 2023-05-23 | 上海信羽电子科技有限公司 | Dual-color swing arm core pulling structure |
| CN115042385B (en) * | 2022-06-10 | 2022-12-09 | 浙江金马泰科技有限公司 | Toy tire cover gas cap structure injection mold |
| CN115815526A (en) * | 2022-11-21 | 2023-03-21 | 中国第一汽车股份有限公司 | Casting mold splitting device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893644A (en) * | 1973-08-06 | 1975-07-08 | Herman J Drazick | Ejector accelerator for molding apparatus |
| CN101564889A (en) * | 2009-05-31 | 2009-10-28 | 深圳创维－Rgb电子有限公司 | Secondary ejecting mechanism and injection mold including the mechanism |
| CN202895621U (en) * | 2012-09-19 | 2013-04-24 | 台州市凯华塑业有限公司 | Gear and rack secondary demolding mechanism of injection molding mold |
-
2012
- 2012-09-19 CN CN201210347309.9A patent/CN102862273B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3893644A (en) * | 1973-08-06 | 1975-07-08 | Herman J Drazick | Ejector accelerator for molding apparatus |
| CN101564889A (en) * | 2009-05-31 | 2009-10-28 | 深圳创维－Rgb电子有限公司 | Secondary ejecting mechanism and injection mold including the mechanism |
| CN202895621U (en) * | 2012-09-19 | 2013-04-24 | 台州市凯华塑业有限公司 | Gear and rack secondary demolding mechanism of injection molding mold |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102862273A (en) | 2013-01-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102862273B (en) | Secondary demoulding mechanism with gear and racks for injection mould | |
| CN101875228B (en) | Ejector mechanism and injection mold therewith | |
| CN208962394U (en) | A kind of ejecting structure of automotive trim mold | |
| CN203031870U (en) | Lens double-ejection mold assembly | |
| CN110370564B (en) | Injection mold for back-off demolding and production method of auxiliary equipment of injection mold | |
| CN203726729U (en) | Injection mold | |
| CN202293184U (en) | Submarine gate mechanism of ejector cam insert of injection mould | |
| CN202895621U (en) | Gear and rack secondary demolding mechanism of injection molding mold | |
| CN108068279B (en) | Secondary composite ejection and blowing demoulding mechanism inside core of injection mould | |
| CN102756462A (en) | Splayed swinging rod type secondary de-molding mechanism for injection molding die | |
| CN202668908U (en) | Clamp jaw type secondary demoulding mechanism for injection mould | |
| CN203449537U (en) | Mould | |
| CN202106517U (en) | Transverse internal-thread product demoulding mechanism | |
| CN201346824Y (en) | Injection mold | |
| CN203712987U (en) | Resetting anti-collision mechanism of core-pulling slide block of injection mould | |
| CN102529044A (en) | Swinging block pull plate type secondary demolding mechanism for injection mold | |
| CN202781713U (en) | Disc-shaped pouring gate automatic cutting die | |
| CN108032489A (en) | The sliding spring bushing mechanism in the block of one kind | |
| CN204340100U (en) | A kind of injection mold of automatic blanking | |
| CN202200477U (en) | Sliding core-pulling mechanism in inclined guide column at side hole of plastic shell | |
| CN201761038U (en) | Ejection mechanism and injection mold with same | |
| CN203901659U (en) | Sliding block sprue stripping structure of automobile water chamber cover plate mold | |
| CN204076696U (en) | Single chamber injection mould runner system solidifying material automatic demoulding mechanism | |
| CN205416241U (en) | Side core -pulling ejection mechanism | |
| CN109228160B (en) | Rotary demolding mechanism of mold |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: TAIZHOU KAIHUA AUTOMOTIVE MOULDS CO., LTD. Free format text: FORMER NAME: TAIZHOU KAIHUA PLASTIC INDUSTRY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 317108, Zhejiang Province three counties Pu dam town (Zhejiang three coastal industrial city) Patentee after: Taizhou plain Kai Hua automobile die Co., Ltd Address before: The three door county of Taizhou City, Zhejiang province 317108 along the red (three in Zhejiang coastal industrial city) Patentee before: Taizhou City Kaihua Plastic Industry Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Secondary demoulding mechanism with gear and racks for injection mould Effective date of registration: 20171128 Granted publication date: 20150624 Pledgee: Agricultural Bank of China, Limited by Share Ltd, three county sub branch Pledgor: Taizhou plain Kai Hua automobile die Co., Ltd Registration number: 2017330000203 |