CN100400264C - 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
- CN100400264C CN100400264C CNB2005101222946A CN200510122294A CN100400264C CN 100400264 C CN100400264 C CN 100400264C CN B2005101222946 A CNB2005101222946 A CN B2005101222946A CN 200510122294 A CN200510122294 A CN 200510122294A CN 100400264 C CN100400264 C CN 100400264C
- Authority
- CN
- China
- Prior art keywords
- slide block
- slide blocks
- auxilliary
- master slider
- core
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a device and a use method for contracting an internal loose core of a plastic module. The present invention is characterized in that the device is composed of a core, main slide blocks, auxiliary slide blocks, a core fixing plate, an inclined push rod, a fixed plate of a push rod, a push plate, a movable mould seat plate, and a fixing device of the inclined push rod for the core and the fixed plate of a push rod; a structure for contracting the inner loose core adopts two sets of main slide blocks and auxiliary slide blocks, and the main slide blocks and the auxiliary slide blocks are uniformly distributed along the circumference at six equant intervals; simultaneously, the slide blocks uses dovetail-shaped guide chutes to guide. When the module is in injection molding, injection pressure acts at the tops of the slide blocks, and the inner molded surface is smooth and flat. After the injection, the main slide blocks and the auxiliary slide blocks are inwards contracted under the function of a push mechanism, and are orderly contacted by the slope motion of different inclination angles of the main slide blocks and the auxiliary slide blocks. Thus, the mould is smoothly pushed out of bottle neck-shaped mouth parts of plastic pieces.
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 is to go up pin and following pin to the fixture of main and auxiliary slide block and 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. 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. 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 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.
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 is to go up pin and following pin to the fixture of main and auxiliary slide block and ejector pin retaining plate.
4. using method that is used for the contracting internal core withdrawing device of the said mould of plastics of claim 1 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 CN1785649A (en) | 2006-06-14 |
| CN100400264C true CN100400264C (en) | 2008-07-09 |
Family
ID=36783297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100400264C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101306583A (en) * | 2007-05-18 | 2008-11-19 | 上海天龙包装机械成套设备有限公司 | Inner core mold 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 |
| 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 |
| CN113976854B (en) * | 2021-12-28 | 2022-04-12 | 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296880A (en) * | 2000-11-21 | 2001-05-30 | 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 |
-
2005
- 2005-12-12 CN CNB2005101222946A patent/CN100400264C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296880A (en) * | 2000-11-21 | 2001-05-30 | 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1785649A (en) | 2006-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100400264C (en) | Contracting internal core withdrawing device used for plastic mould and its use method | |
| CN201268069Y (en) | Shrinkage internal loose core mechanism for injection mold | |
| CN105034285A (en) | Inlaying type vertical injection mold structure achieving ejection and core pulling simultaneously | |
| CN213107990U (en) | Internal shrinkage demoulding structure for injection mould | |
| CN2868641Y (en) | Contraction internal core-drawing device for plastic mould | |
| CN102310526A (en) | Injection mold of automobile locked-lid | |
| CN201669862U (en) | Intramode compression device of injection mold | |
| CN202293233U (en) | Core-pulling mechanism for injection mold with inner reverse fastener | |
| CN110919995A (en) | Anti-adhesion demolding structure for slider-wrapped annular product | |
| CN211389984U (en) | Six-way pipe forming die with transverse core-pulling and reverse-diagonal-rod demoulding mechanism | |
| CN215039944U (en) | Injection mold for injection molding machine | |
| CN211994049U (en) | Anti-adhesion demolding structure for slider-wrapped annular product | |
| CN104149280B (en) | The shaping mould that is assembled into one of scissors pin | |
| CN211891732U (en) | Injection mold for syringe needle base | |
| CN203792638U (en) | Full-automatic production mold for plastic pipe or container bottom labeling inside mold | |
| CN113306092A (en) | Full-automatic forming die for machining pall ring | |
| CN206011619U (en) | A kind of demolding structure of all-round back-off plastic mould | |
| CN216914715U (en) | Mould with upper mould mechanism of loosing core | |
| CN111571960A (en) | Demoulding mechanism and demoulding method of staggered-tooth snap ring plastic part forming mould | |
| CN212528560U (en) | Rubber coating mould of reverse drawing of patterns | |
| CN213500598U (en) | High-efficient injection mold of multicavity room | |
| CN210969757U (en) | Material-saving Cable precision die | |
| CN218576854U (en) | Mould of reagent pipe body | |
| CN205148793U (en) | Multilocular tee bend mould of a mould | |
| CN220681492U (en) | Slider ejecting type die |
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 | ||
| 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 |
|
| 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 |
|
| DD01 | Delivery of document by public notice |
Addressee: Lu Feng Document name: Notification of Passing Examination on Formalities |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080709 Termination date: 20181212 |