CN1785649A - Contracting internal core withdrawing device used for plastic mould and its use method - Google Patents
Contracting internal core withdrawing device used for plastic mould and its use method Download PDFInfo
- Publication number
- CN1785649A CN1785649A CNA2005101222946A CN200510122294A CN1785649A CN 1785649 A CN1785649 A CN 1785649A CN A2005101222946 A CNA2005101222946 A CN A2005101222946A CN 200510122294 A CN200510122294 A CN 200510122294A CN 1785649 A CN1785649 A CN 1785649A
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- slide block
- auxilliary
- master slider
- mould
- withdrawing device
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Abstract
A contractible core unit for plastic mould is composed of moulding core and its fixing plate, primary and secondary slide blocks arranged along circumference at intervals, oblique push rods and its fixing plate, push plate, movable mould seat, and fixing part. When the mould is used for injection moulding, the inner surface of moulding cavity is smooth. After said injection moulding, the primary and secondary slide blocks are contracted inward under the action of push mechanism, so the bottle neck-shaped plastic product can be easily taken out of the mould.
Description
(1) technical field:
The invention belongs to the mould of plastics field, particularly a kind of contracting internal core withdrawing device and using method thereof that is used for mould of plastics.
(2) background technology:
Plastic injection mould is an instrument of producing plastic products, uses very extensive.In plastic products injection moulding, because there is indent the inside of some plastic products, as shown in Figure 1, plastic part can't take out from mold cores after moulding.The method that solves is to adopt moving core at present, and after the plastic part moulding, moving core takes out from mould with plastic part, and then tries every possible means core is taken out.Time-consuming, the effort of this method can't satisfy mass-produced requirement.
(3) summary of the invention:
The objective of the invention is to design a kind of contracting internal core withdrawing device and using method thereof that is used for mould of plastics, it is solved above-mentioned trouble, is a kind of instrument that is used for mould of plastics and using method of practical.
Technical scheme of the present invention: a kind of contracting internal core withdrawing device that is used for mould of plastics, it is characterized in that it is made of core, master slider, auxilliary slide block, core fixing plate, slanted pushing rod, ejector pin retaining plate, push pedal, Bottom clamp plate and the slanted pushing rod fixture to core and ejector pin retaining plate, said master slider and auxilliary slide block are pressed circumference six five equilibriums uniformly at intervals, have the six roots of sensation slanted pushing rod that links to each other with master slider, auxilliary slide block respectively in the push pedal, the master slider back side is the plane, the angle of auxilliary two sides of slide block is 60 °, and the master slider back side and auxilliary slide block side closely cooperate; Said main and auxiliary slide block adopts the guide runner guiding to cooperate, and the inclination angle at the master slider back side is α, and the inclination angle at the auxilliary slide block back side is β, and master slider, auxilliary slider tilt angle α: the ratio of β is 1: 2.
Above-mentioned said main and auxiliary slide block that guiding cooperates and the guide runner of employing of being is that dovetail on dovetail groove and the master slider that utilizes on the core cooperates with dovetail on the auxilliary slide block and becomes dovetail groove slide guide structure.
Above-mentioned said slanted pushing rod to main and auxiliary slide block be to go up pin and following pin with the fixture of ejector pin retaining plate.
A kind of using method that is used for the contracting internal core withdrawing device of mould of plastics is characterized in that it is made of following steps:
(1) opens mould after the plastic products injection moulding, make the plastic injection equipment push rod promote push pedal, have the six roots of sensation slanted pushing rod that links to each other with master slider, auxilliary slide block respectively in the push pedal and move simultaneously, make three master sliders and three auxilliary slide blocks also together along the gathering sill motion;
(2) master slider is that the inclined-plane of α moves along the inclination angle, and the inclined-plane that auxilliary slide block is β along the inclination angle moves, and sets up 2 α=β, thus the inside contraction speed that makes auxilliary slide block greater than master slider, thus, the interior contraction that is punctured into master slider in auxilliary slide block quick provides the space;
(3) after master slider and auxilliary slide block were finished contraction simultaneously, the moulding plastic took off smoothly.
Operation principle of the present invention is: because the contracting internal core withdrawing structure has adopted two groups of slide blocks, one group is three bigger master sliders; Another group is three less auxilliary slide blocks, and main and auxiliary slide block is pressed circumference six five equilibriums uniformly at intervals, and simultaneously, slide block adopts dovetail guide runner guiding.When the mold injects moulding, injection pressure acts on the top of slide block, and slide block is adjacent to mutually, has guaranteed the smooth smooth of moulding inner surface; After injection was finished, main and auxiliary slide block inwardly shrank under the effect of ejecting mechanism, utilized the inclined-plane motion at the different inclination angle of its main and auxiliary slide block to make main and auxiliary slide block be the sequencing indentation, thus, mould was released from plastic has the oral area of bottle footpath shape smoothly.
Superiority of the present invention is: 1, technology is simple, is skillfully constructed, and can finish releasing process smoothly; 2, contracting internal core withdrawing is simple in structure, cooperates smooth and easyly, saves time, laborsaving; 3, improve operating efficiency, be convenient to the promotion and application of large-scale production; 4, extensive market prospects and business development meaning are arranged.
(4) description of drawings:
Accompanying drawing 1 has the structural representation of bottle footpath shape oral area for the related plastic part of the present invention.This structure shows that plastic part can't take out from mold cores after moulding.
Accompanying drawing 2 is the related a kind of cross-sectional structure schematic diagram that is used for the contracting internal core withdrawing device of mould of plastics of the present invention.
The longitudinal section working state structure schematic diagram that accompanying drawing 5 combines for related a kind of contracting internal core withdrawing device that is used for mould of plastics of the present invention and the plastic part that bottle footpath shape oral area is arranged.
Wherein: 1 for core, 1a be on the core dovetail groove, 2 for master slider, 2a be that master slider dovetail, 3 is that auxilliary slide block, 3a are that auxilliary slide block dovetail, 4 is anti-push rod for solid plate, 20 for little core, 19 for top clamping plate, 18 for sprue bush, 17 for centring ring, 16 for Angle Pin, 15 for side slide, 14 for latch segment, 13 for plastic part, 12 for last pin, 11 for push pedal, 9 Bottom clamp plates, 10 for ejector pin retaining plate, 8 for pin down, 7 for slanted pushing rod, 6 for core fixing plate, 5.
(5) specific embodiment:
Embodiment: a kind of contracting internal core withdrawing device (seeing Fig. 1-5) that is used for mould of plastics, it is characterized in that it is by core 1, master slider 2, auxilliary slide block 3, core fixing plate 4, slanted pushing rod 5, ejector pin retaining plate 7, push pedal 8,5 pairs of cores of Bottom clamp plate 9 and slanted pushing rod 1 constitute with the fixture of ejector pin retaining plate 7, said master slider 2 and auxilliary slide block 3 are pressed circumference six five equilibriums uniformly at intervals, have in the push pedal 8 respectively and master slider 2, the six roots of sensation slanted pushing rod 5 that auxilliary slide block 3 links to each other, the master slider back side is the plane, the angle of auxilliary two sides of slide block is 60 °, and the master slider back side and auxilliary slide block side closely cooperate; Said main and auxiliary slide block adopts the guide runner guiding to cooperate, and the inclination angle at the master slider back side is α, and the inclination angle at the auxilliary slide block back side is β, and master slider, auxilliary slider tilt angle α: the ratio of β is 1: 2.
Above-mentioned said main and auxiliary slide block 2 that guiding cooperates and the guide runners of 3 employings of being are that dovetail 2a on dovetail groove 1a and the master slider 2 that utilizes on the core 1 cooperates with dovetail 3a on the auxilliary slide block 3 and becomes dovetail groove slide guide structure.
5 pairs of main and auxiliary slide blocks 2 of above-mentioned said slanted pushing rod and 3 and the fixture of ejector pin retaining plate 7 be to go up pin 10 and following pin 6.
A kind of using method that is used for the contracting internal core withdrawing device of mould of plastics is characterized in that it is made of following steps:
(1) opens mould after the plastic products injection moulding, make the plastic injection equipment push rod promote push pedal 8, have the six roots of sensation slanted pushing rod 5 that links to each other with master slider 2, auxilliary slide block 3 respectively in the push pedal 8 and move simultaneously, make three master sliders 2 and three auxilliary slide blocks 3 also together along the gathering sill motion;
(2) master slider 2 is that the inclined-plane of α moves along the inclination angle, the inclined-plane that auxilliary slide block 3 is β along the inclination angle moves, and sets up 2 α=β, so make the inside contraction speed of assisting slide block 3 greater than master slider 2, thus, auxilliary slide block 3 fast in be punctured into master slider 2 interior contraction the space is provided;
(3) after master slider 2 and auxilliary slide block 3 were finished contraction simultaneously, the moulding plastic took off smoothly.
Claims (4)
1, a kind of contracting internal core withdrawing device that is used for mould of plastics, it is characterized in that it is made of core, master slider, auxilliary slide block, core fixing plate, slanted pushing rod, ejector pin retaining plate, push pedal, Bottom clamp plate and the slanted pushing rod fixture to core and ejector pin retaining plate, said master slider and auxilliary slide block are pressed circumference six five equilibriums uniformly at intervals, have the six roots of sensation slanted pushing rod that links to each other with master slider, auxilliary slide block respectively in the push pedal, the master slider back side is the plane, the angle of auxilliary two sides of slide block is 60 °, and the master slider back side and auxilliary slide block side closely cooperate; Said main and auxiliary slide block adopts the guide runner guiding to cooperate, and the inclination angle at the master slider back side is α, and the inclination angle at the auxilliary slide block back side is β, and master slider, auxilliary slider tilt angle α: the ratio of β is 1: 2.
2,, it is characterized in that said main and auxiliary slide block that guiding cooperates and the guide runner of employing of being is that dovetail on dovetail groove and the master slider that utilizes on the core cooperates with dovetail on the auxilliary slide block and becomes dovetail groove slide guide structure according to the said a kind of contracting internal core withdrawing device that is used for mould of plastics of claim 1.
3, according to the said a kind of contracting internal core withdrawing device that is used for mould of plastics of claim 1, it is characterized in that said slanted pushing rod to main and auxiliary slide block be to go up pin and following pin with the fixture of ejector pin retaining plate.
4, a kind of using method that is used for the contracting internal core withdrawing device of mould of plastics is characterized in that it is made of following steps:
(1) opens mould after the plastic products injection moulding, make the plastic injection equipment push rod promote push pedal, have the six roots of sensation slanted pushing rod that links to each other with master slider, auxilliary slide block respectively in the push pedal and move simultaneously, make three master sliders and three auxilliary slide blocks also together along the gathering sill motion;
(2) master slider is that the inclined-plane of α moves along the inclination angle, and the inclined-plane that auxilliary slide block is β along the inclination angle moves, and sets up 2 α=β, thus the inside contraction speed that makes auxilliary slide block greater than master slider, thus, the interior contraction that is punctured into master slider in auxilliary slide block quick provides the space;
(3) after master slider and auxilliary slide block were finished contraction simultaneously, the moulding plastic took off smoothly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101222946A CN100400264C (en) | 2005-12-12 | 2005-12-12 | Contracting internal core withdrawing device used for plastic mould and its use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101222946A CN100400264C (en) | 2005-12-12 | 2005-12-12 | Contracting internal core withdrawing device used for plastic mould and its use method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1785649A true CN1785649A (en) | 2006-06-14 |
| CN100400264C CN100400264C (en) | 2008-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005101222946A Expired - Fee Related CN100400264C (en) | 2005-12-12 | 2005-12-12 | Contracting internal core withdrawing device used for plastic mould and its use method |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141487A1 (en) * | 2007-05-18 | 2008-11-27 | Skylong Packaging Machinery Building (Shanghai) Co., Ltd | An inner core mold |
| CN102689382A (en) * | 2011-03-23 | 2012-09-26 | 汉达精密电子(昆山)有限公司 | Internal thread forming mechanism |
| CN103407104A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Integral lens barrel core pulling die |
| CN104400971A (en) * | 2014-12-12 | 2015-03-11 | 重庆瑞霆塑胶有限公司 | Injection mold with movable insert |
| CN104494050A (en) * | 2014-11-12 | 2015-04-08 | 湖州氮化硅制品有限公司 | Die for casting cylindrical can-shaped container |
| CN107470558A (en) * | 2017-06-09 | 2017-12-15 | 浙江创建厨具有限公司 | A kind of casting mould of combination type core structure |
| CN113976854A (en) * | 2021-12-28 | 2022-01-28 | 爱柯迪股份有限公司 | Die casting die for aluminum die casting parts with central hole and using method |
| CN117300068A (en) * | 2023-11-27 | 2023-12-29 | 北京中科科仪股份有限公司 | Metal casting mould |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102765170A (en) * | 2012-08-03 | 2012-11-07 | 镒生电线塑料(昆山)有限公司 | All-around demoulding mechanism for plastic injection mould |
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| CN1103271C (en) * | 2000-11-21 | 2003-03-19 | 于建新 | Method for producing plastic pipe with R-shaped sealing slot |
| CN2538514Y (en) * | 2002-05-14 | 2003-03-05 | 彭锐 | Injection mould for water-meter case |
| CN1666830A (en) * | 2005-04-07 | 2005-09-14 | 中国南方航空动力机械公司 | Method for casting large-scale complex thin-wall Mg alloy castings |
| CN2868641Y (en) * | 2005-12-12 | 2007-02-14 | 天津理工大学 | Contraction internal core-drawing device for plastic mould |
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2005
- 2005-12-12 CN CNB2005101222946A patent/CN100400264C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008141487A1 (en) * | 2007-05-18 | 2008-11-27 | Skylong Packaging Machinery Building (Shanghai) Co., Ltd | An inner core mold |
| CN102689382A (en) * | 2011-03-23 | 2012-09-26 | 汉达精密电子(昆山)有限公司 | Internal thread forming mechanism |
| CN102689382B (en) * | 2011-03-23 | 2019-01-15 | 汉达精密电子(昆山)有限公司 | Internal thread forming mechanism |
| CN103407104A (en) * | 2013-08-15 | 2013-11-27 | 苏州大学 | Integral lens barrel core pulling die |
| CN104494050A (en) * | 2014-11-12 | 2015-04-08 | 湖州氮化硅制品有限公司 | Die for casting cylindrical can-shaped container |
| CN104494050B (en) * | 2014-11-12 | 2016-11-16 | 湖州氮化硅制品有限公司 | A kind of mould casting round can shaped container |
| CN104400971A (en) * | 2014-12-12 | 2015-03-11 | 重庆瑞霆塑胶有限公司 | Injection mold with movable insert |
| CN107470558A (en) * | 2017-06-09 | 2017-12-15 | 浙江创建厨具有限公司 | A kind of casting mould of combination type core structure |
| CN113976854A (en) * | 2021-12-28 | 2022-01-28 | 爱柯迪股份有限公司 | Die casting die for aluminum die casting parts with central hole and using method |
| CN117300068A (en) * | 2023-11-27 | 2023-12-29 | 北京中科科仪股份有限公司 | Metal casting mould |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100400264C (en) | 2008-07-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ningbo Fangzheng Tool Co., Ltd. Assignor: Tianjin University of Technology Contract fulfillment period: 2008.8.8 to 2018.8.7 Contract record no.: 2008330000195 Denomination of invention: Contracting internal core withdrawing device used for plastic mould and its use method Granted publication date: 20080709 License type: Exclusive license Record date: 2008.8.18 |
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| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENCE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.8.8 TO 2018.8.7 Name of requester: NINGBO FOUNDER DIES MOTOR CO. Effective date: 20080818 |
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| DD01 | Delivery of document by public notice |
Addressee: Lu Feng Document name: Notification of Passing Examination on Formalities |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20181212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |