CN202344783U - Forcible demolding mechanism for injection mold - Google Patents
Forcible demolding mechanism for injection mold Download PDFInfo
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- CN202344783U CN202344783U CN2011204103780U CN201120410378U CN202344783U CN 202344783 U CN202344783 U CN 202344783U CN 2011204103780 U CN2011204103780 U CN 2011204103780U CN 201120410378 U CN201120410378 U CN 201120410378U CN 202344783 U CN202344783 U CN 202344783U
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- movable mold
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Abstract
The utility model discloses a forcible demolding mechanism for an injection mold, in order to solve the problems of strain to a workpiece and damage to the mold caused when a product is directly and forcibly demolded. The whole mechanism has a center axisymmetric structure and comprises a movable mold, a fixed mold and a group of workpiece ejection components, wherein the movable mold consists of a movable mold plate, a convex mold, a movable mold embedding piece, a gasket, a movable mold base plate, square iron and a movable mold seat plate; the convex mold is fixedly arranged in the movable mold plate; the movable mold plate and the movable mold base plate move relatively; the lower end of the movable mold embedding piece is fixed on the gasket; the middle of the movable mold embedding piece penetrates through the movable mold plate and the convex mold; the top of the movable mold embedding piece is arranged in the cavity of the injection mold; the gasket is embedded in the bottom of the movable mold base plate through a connection piece; the movable mold base plate is fixedly connected with the square iron; and the square iron is arranged on the movable mold seat plate. According to the forcible demolding mechanism, the problem of strain to a workpiece and damage to the mold caused when an injection-molded product with a backoff structure is directly and forcibly demolded is solved, so that the qualification rate of the injection-molded product is increased, and the service life of the mold is prolonged.
Description
Technical field
The utility model relates to a kind of mould emptier, is particularly useful for the mould emptier by force at injection molding part back-off position, belongs to the plastics forming technique field.
Background technology
Back-off is meant the injection moulding workpiece normal structure of depanning part in process of production.If injection moulding workpiece back-off is positioned at mould dynamic model one side, utilize oblique top, dynamic model slide block usually or solve it to go out modulus problem through secondary ejecting mechanism; When injection moulding workpiece back-off is positioned at mould cover half one side; Generally then adopt and directly take off the structure realization demoulding by force, very easily cause workpiece to pull, be out of shape, cause the product percent defective to improve owing to directly take off structure by force; And this structure is bigger to the damage of mould, and shortened the service life of mould.
The utility model content
The purpose of the utility model is the drawback to prior art, provides a kind of injection mold strong off line structure, and it separates with moving platen through the dynamic model backing plate, and the dynamic model mold insert is taken away, abdicates the workpiece deformation space, realizes the demoulding by force of cover half side back-off with this.
The said problem of the utility model realizes with following technical proposals:
The strong off line structure of a kind of injection mold, the integral central axially symmetric structure, it comprises dynamic model, cover half and workpiece ejection assembly in constituting; Said dynamic model part is made up of moving platen, punch, dynamic model mold insert, cushion block, dynamic model backing plate, square iron and Bottom clamp plate, and said punch is fixedly mounted in the moving platen, and said moving platen is positioned on the dynamic model backing plate; Said dynamic model mold insert lower end is fixed on the cushion block; Moving platen and punch are run through in the centre, and the top is positioned at molding mold cavity, and said cushion block is inlaid in dynamic model backing plate bottom through connector; Said dynamic model backing plate is fixedly connected with square iron, and said square iron is installed on the Bottom clamp plate.
The strong off line structure of above-mentioned injection mold; Said cover half is made up of die, solid plate, back-off mold insert and top clamping plate; Said die is fixedly mounted in the solid plate; Said solid plate is fixedly connected with top clamping plate, and said back-off mold insert is inlaid in the solid plate, its bottom inside face and injection moulding workpiece back-off structure coupling.
The strong off line structure of above-mentioned injection mold; Said workpiece ejection assembly; Comprise thimble, ejector retainner plate, thimble backing plate and ejector retainner plate stop screw; Said thimble is fixed on the ejector retainner plate, and said ejector retainner plate is connected with the thimble shim, said ejector retainner plate stop screw be installed on the ejector retainner plate with moving platen to be threaded.
Above-mentioned injection mold takes off structure by force; Also comprise stop screw and spring in the formation, said stop screw afterbody is threaded with the dynamic model counter element, middle part and the assembling of dynamic model corresponding aperture matched in clearance; Top end face is positioned at injection mold die joint place, and said spring is inlaid in the dynamic model counter element.
Above-mentioned injection mold takes off structure by force, also comprises shutter in the formation, and said shutter upper end is fixed on the cover half counter element, and the lower end is inlaid in dynamic model and cover half die joint place.
The utility model improves present cover half back-off demoulding device, through the elastic force effect of compression spring, earlier dynamic model backing plate and moving platen is separated, and extracts the dynamic model mold insert out, abdicates the deformation space of injection moulding workpiece back-off structure; And then open die joint, and by the thimble assembly injection moulding workpiece is ejected, realized taking off by force smoothly of cover half back-off.The utility model has solved that product takes off by force directly that the workpiece that causes is pulled and mould damages problem, has improved product percent of pass, has prolonged die life.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is an A place structure enlarged drawing among Fig. 1;
Fig. 3 is that each component parts position concerns sketch map after the die sinking for the first time;
Fig. 4 is that each component parts position concerns sketch map after the die sinking for the second time;
Fig. 5 is that each component parts position concerned sketch map after the injection moulding workpiece ejected.
Each label is among the figure: 1, top clamping plate, 2, the back-off mold insert, 3, cover half pulls, 4, die, 5, the injection moulding workpiece; 6, shutter, 7, stop screw, 8, the dynamic model mold insert, 9, punch, 10, moving platen; 11, spring, 12, cushion block, 13, the dynamic model backing plate, 14, square iron, 15, Bottom clamp plate; 16, thimble parallels, 17, thimble, 18, ejector retainner plate, 19, the ejector retainner plate stop screw.
The specific embodiment
Referring to Fig. 1, Fig. 2; The mould of the utility model is the central shaft symmetrical structure, comprises dynamic model, cover half and one group of workpiece ejection assembly in the formation, and said dynamic model is made up of moving platen 10, punch 9, dynamic model mold insert 8, cushion block 12, dynamic model backing plate 13, square iron 14 and Bottom clamp plate 15; Said punch 9 is fixedly mounted in the moving platen 10; Said moving platen 10 has relative motion with dynamic model backing plate 13, and said dynamic model mold insert 8 lower ends are fixed on the cushion block 12, and moving platen 10 and punch 9 are run through in the centre; The top is positioned at molding mold cavity; Said cushion block 12 is inlaid in dynamic model backing plate 13 bottoms through connector, and said dynamic model backing plate 13 is fixedly connected with square iron 14, and said square iron 14 is installed on the Bottom clamp plate 15.
Referring to Fig. 1; Cover half during the utility model constitutes is made up of die 4, solid plate 3, back-off mold insert 2 and top clamping plate 1; Said solid plate 3 is fixedly connected with top clamping plate 1; Said die 4 is fixedly mounted in the solid plate 3, and said back-off mold insert 2 is fixed on the solid plate 3 through die 4, and above element does not have relative motion in motion process.
Referring to Fig. 1; Workpiece ejection assembly during the utility model constitutes comprises thimble 17, ejector retainner plate 18 and thimble backing plate 16; Said thimble 17 is fixed on the ejector retainner plate 18; Said ejector retainner plate 18 is fixedly connected with thimble backing plate 16, said ejector retainner plate stop screw 19 be installed on the ejector retainner plate 18 with moving platen 10 to be threaded.
Referring to Fig. 1; During constituting, the utility model also comprises stop screw 7 and spring 11; Said stop screw 7 afterbodys are threaded with the dynamic model counter element; Middle part and the assembling of dynamic model corresponding aperture matched in clearance, top end face is positioned at injection mold die joint place (a little less than moving platen), and it can limit the distance of opening of moving platen 10 and dynamic model backing plate 13; Said spring 11 is inlaid in the dynamic model counter element, and non-die sinking operating mode is in compressive state.
Referring to Fig. 1, the utility model also comprises shutter 6 in constituting, and said shutter 6 upper ends are fixed on the cover half counter element, and the lower end is inlaid in dynamic model and cover half die joint place.
Referring to Fig. 1, Fig. 3, Fig. 4, the utility model needs twice die sinking to realize the demoulding of injection moulding workpiece, and the die sinking process is described below:
Die sinking for the first time: die sinking front spring 11 is in compressive state, and shutter 6 tension solid plates 3 and moving platen 10, and die sinking moment spring 11 pressure obtain discharging, and dynamic model backing plate 13 is separated with moving platen 10; Because dynamic model mold insert 8 is fixed on the dynamic model backing plate 13, itself and dynamic model backing plate 13 are together retreated, and dynamic model mold insert 8 is extracted out from injection moulding workpiece 5 thus.Under the control of stop screw 7, dynamic model backing plate 13 stops relative motion after opening certain distance with moving platen 10.Because ejector retainner plate stop screw 19 is connected on the moving platen 10, head is held ejector retainner plate 18, so ejector retainner plate 18 and moving platen 10 no relative motions in the motion process.
Die sinking for the second time: shutter 6 receives greater than the pulling force of its limiting value being opened under the injector effect at this moment, and moving platen 10 separates with solid plate 3; Because dynamic model mold insert 8 is extracted out from injection moulding workpiece 5, for enough spaces are abdicated in the distortion of injection moulding workpiece 5, because of back-off mold insert 2 is fixed on the solid plate 3; At this moment; Back-off mold insert 2 is extruding injection moulding workpiece 5 inwardly, and injection moulding workpiece 5 produces strain, and back-off takes off by force smoothly.By thimble 17 injection moulding workpiece 5 is ejected from the cover half side subsequently.
Eject: injection machine top rod withstands thimble backing plate 16 and makes its motion, because thimble backing plate 16 adopts the empty avoiding assembling with ejector retainner plate stop screw 19, so ejector retainner plate stop screw 19 does not move with ejector retainner plate.Treat ejector retainner plate move to desired location after injection moulding workpiece 5 eject fully.So far whole die sinking action is accomplished.
Reach and the bonding dynamics of core according to the injection moulding Workpiece structure, the quantity of thimble assembly is controlled at about 10 in the utility model.
Claims (5)
1. strong off line structure of injection mold; Integral body is the central shaft symmetrical structure; It is characterized in that it comprises dynamic model, cover half and one group of workpiece ejection assembly, said dynamic model is made up of moving platen (10), punch (9), dynamic model mold insert (8), cushion block (12), dynamic model backing plate (13), square iron (14) and Bottom clamp plate (15); Said punch (9) is fixedly mounted in the moving platen (10); Said moving platen (10) be positioned at dynamic model backing plate (13) on, said dynamic model mold insert (8) lower end is fixed on the cushion block (12), mid portion runs through moving platen (10) and punch (9); The top is positioned at molding mold cavity; Said cushion block (12) is inlaid in dynamic model backing plate (13) bottom through connector, and said dynamic model backing plate (13) is fixedly connected with square iron (14), and said square iron (14) is installed on the Bottom clamp plate (15).
2. the strong off line structure of a kind of injection mold according to claim 1; It is characterized in that; Said cover half is made up of die (4), solid plate (3), back-off mold insert (2) and top clamping plate (1), and said die (4) is fixedly mounted in the solid plate (3), and said solid plate (3) is fixedly connected with top clamping plate (1); Said back-off mold insert (2) is inlaid in the solid plate (3), the back-off structure coupling of its bottom inside face and injection moulding workpiece (5).
3. the strong off line structure of a kind of injection mold according to claim 1 and 2; It is characterized in that; Said workpiece ejection assembly comprises thimble (17), ejector retainner plate (18) and thimble backing plate (16); Said thimble (17) is fixed on the ejector retainner plate (18), and said ejector retainner plate (18) is fixedly connected with thimble backing plate (16), said ejector retainner plate stop screw (19) head be installed in that ejector retainner plate (18) is gone up and with moving platen (10) to be threaded.
4. the strong off line structure of a kind of injection mold according to claim 3; It is characterized in that; Also comprise stop screw (7) and spring (11) in the formation, said stop screw (7) afterbody is threaded with the dynamic model counter element, middle part and the assembling of dynamic model corresponding aperture matched in clearance; Top end face is positioned at injection mold die joint place, and said spring (11) is inlaid in the dynamic model counter element.
5. the strong off line structure of a kind of injection mold according to claim 4 is characterized in that, also comprises shutter (6) in the formation, and said shutter (6) upper end is fixed on the cover half counter element, and the lower end is inlaid in dynamic model and cover half die joint place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204103780U CN202344783U (en) | 2011-10-25 | 2011-10-25 | Forcible demolding mechanism for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204103780U CN202344783U (en) | 2011-10-25 | 2011-10-25 | Forcible demolding mechanism for injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN202344783U true CN202344783U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204103780U Expired - Fee Related CN202344783U (en) | 2011-10-25 | 2011-10-25 | Forcible demolding mechanism for injection mold |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009583A (en) * | 2012-12-19 | 2013-04-03 | 盐城纺织职业技术学院 | Mould for ejecting mechanism of divided-board type ejector sleeve |
| CN103448211A (en) * | 2013-07-30 | 2013-12-18 | 黄山奥特斯电气有限公司 | Secondary parting mold structure for movable die |
| CN105690669A (en) * | 2016-03-11 | 2016-06-22 | 太仓求精塑模有限公司 | Injection mold for manufacturing thin-wall and deep-cavity products |
| CN107030258A (en) * | 2017-05-25 | 2017-08-11 | 蒋必勇 | It is a kind of to prevent the mould of product ejection deformation |
| CN108189342A (en) * | 2017-12-15 | 2018-06-22 | 宁波方正汽车模具股份有限公司 | The mold that a kind of cover half takes off by force |
| CN108202450A (en) * | 2017-12-15 | 2018-06-26 | 宁波方正汽车模具股份有限公司 | The mold that a kind of sliding block takes off by force |
| CN109109270A (en) * | 2018-09-19 | 2019-01-01 | 肇庆理士电源技术有限公司 | A kind of mold |
| CN109945008A (en) * | 2019-04-19 | 2019-06-28 | 刘伟 | A kind of pipe lid |
| CN110091475A (en) * | 2019-05-05 | 2019-08-06 | 广东科龙模具有限公司 | The secondary structure de- by force of cylinder button bit in a kind of mold |
| CN112829213A (en) * | 2021-01-06 | 2021-05-25 | 万华化学集团股份有限公司 | Injection mold for preparing spraying-free material and application thereof |
| CN114043684A (en) * | 2021-10-19 | 2022-02-15 | 江阴精力模具工程有限公司 | Secondary ejection structure and ejection method of automobile air inlet grille injection mold |
| CN115556309A (en) * | 2022-09-16 | 2023-01-03 | 温州意华接插件股份有限公司 | Barb plastic part mold and demolding method thereof |
-
2011
- 2011-10-25 CN CN2011204103780U patent/CN202344783U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009583A (en) * | 2012-12-19 | 2013-04-03 | 盐城纺织职业技术学院 | Mould for ejecting mechanism of divided-board type ejector sleeve |
| CN103448211A (en) * | 2013-07-30 | 2013-12-18 | 黄山奥特斯电气有限公司 | Secondary parting mold structure for movable die |
| CN105690669A (en) * | 2016-03-11 | 2016-06-22 | 太仓求精塑模有限公司 | Injection mold for manufacturing thin-wall and deep-cavity products |
| CN107030258A (en) * | 2017-05-25 | 2017-08-11 | 蒋必勇 | It is a kind of to prevent the mould of product ejection deformation |
| CN108189342A (en) * | 2017-12-15 | 2018-06-22 | 宁波方正汽车模具股份有限公司 | The mold that a kind of cover half takes off by force |
| CN108202450A (en) * | 2017-12-15 | 2018-06-26 | 宁波方正汽车模具股份有限公司 | The mold that a kind of sliding block takes off by force |
| CN109109270A (en) * | 2018-09-19 | 2019-01-01 | 肇庆理士电源技术有限公司 | A kind of mold |
| CN109945008A (en) * | 2019-04-19 | 2019-06-28 | 刘伟 | A kind of pipe lid |
| CN110091475A (en) * | 2019-05-05 | 2019-08-06 | 广东科龙模具有限公司 | The secondary structure de- by force of cylinder button bit in a kind of mold |
| CN112829213A (en) * | 2021-01-06 | 2021-05-25 | 万华化学集团股份有限公司 | Injection mold for preparing spraying-free material and application thereof |
| CN114043684A (en) * | 2021-10-19 | 2022-02-15 | 江阴精力模具工程有限公司 | Secondary ejection structure and ejection method of automobile air inlet grille injection mold |
| CN115556309A (en) * | 2022-09-16 | 2023-01-03 | 温州意华接插件股份有限公司 | Barb plastic part mold and demolding method thereof |
| CN115556309B (en) * | 2022-09-16 | 2024-04-09 | 温州意华接插件股份有限公司 | Barb plastic part mold and demolding method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20120725 Termination date: 20191025 |