CN202208091U - Arc core pulling structure for injection mold - Google Patents
Arc core pulling structure for injection mold Download PDFInfo
- Publication number
- CN202208091U CN202208091U CN2011202919845U CN201120291984U CN202208091U CN 202208091 U CN202208091 U CN 202208091U CN 2011202919845 U CN2011202919845 U CN 2011202919845U CN 201120291984 U CN201120291984 U CN 201120291984U CN 202208091 U CN202208091 U CN 202208091U
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- slide block
- core
- locking member
- contiguous block
- block
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Abstract
The utility model discloses an arc core-pulling structure for an injection mold, which comprises an oil cylinder, a slide block, an arc mold insert hinged in the slide block, a driving piece for driving the arc mold insert, and a locking component for locking the slide block during mold closing. The oil cylinder drives the slide block through the driving piece; the locking component is arranged at the bottom of the slide block; the driving piece comprises a sliding block and connecting block connected with the sliding block; the sliding block is arranged in the slide block and connected with the arc mold insert; the connecting block is embedded in the cavity formed by the slide block and the locking component and connected with the oil cylinder; and a time delay structure and an unlocking structure are arranged on the connecting block and the locking component. The arc core structure has a simple structure, is simple and convenient to operate, and can realize the time delay function during the demoulding of the arc mold insert to ensure the safety and reliability of the demoulding process; after the demoulding is finished, core pulling is started, and the slide block is loosened instantly to finish the second stage of core pulling; and in the core-pulling process, the moving stability and reliability of the slide block are ensured. In short, the core-pulling result is optimized.
Description
Technical field
The utility model relates to the injection mold technical field, particularly a kind of arc core-pulling structure that is used for injection mold.
Background technology
Along with market is complicated day by day to the requirement of injecting products, need be provided with the circular arc position on the product and accomplish the function needs of himself, this kind situation is more and more general.For the ease of this arc core-pulling, generally adopt the arc core-pulling structure.In this arc core-pulling structure, generally adopt slide block to help and loose core.In the arc core-pulling process, generally want earlier the circular arc mold insert extracted out from the circular arc position and carry out slide block again and loose core, operation mainly is in order to prevent the product sheet to be caused overlap like this, influences yield rate.
So when loosing core, in order to prevent product outer wall overlap, people are divided into two stages with this arc core-pulling, promptly the loose core phase I and the second stage of loosing core.The arc core-pulling phase I: this stage is the knockout course of circular arc mold insert, and the circular arc mold insert is under the drive of actuator, and beginning is around rotating shaft rotation, thus with the circular arc position to separating.In this stage, need " locking " slide block, make it and can not move.
The arc core-pulling second stage: this stage is the process of loosing core, and slide block begins to slide under the drive of actuator, until accomplishing loosing core of all positions.Initial in this process, require slide block not moving from the arc core-pulling phase I to the conversion of motion of arc core-pulling second stage.In this conversion process, slide block usually can take place by " locked " and can not " discharge ", thereby influence the motion of next stage.Therefore,, need " release " slide block, make it to accomplish and loose core in this stage.
Traditional arc core-pulling can be with the very complicated and poor effect of loosing core of this structural design of loosing core.Like publication number is the craspedodrome rotation interlock core-pulling mechanism of the elbow goods injection mold of CN20110126; Its described a kind of by interiorly curved loose core, connecting rod, the interior rotation core-pulling mechanism of directly loosing core, directly loosing core and constituting outward; Keep straight on to extract out by oblique slider guide, the pull bar segmentation successively that lags and inside and outsidely directly loose core the technical scheme that the curved rotation of loosing core is loosed core in being affected by connecting rod.The architecture complex operations of loosing core of this conceptual design is loaded down with trivial details, and easily by clamping stagnation, the effect thereby influence is loosed core.
In sum, the main weak point that is used for the arc core-pulling structure of injection mold at present is the complex structure complex operation, and forms clamping stagnation easily, influences the effect of loosing core.
The utility model content
The utility model patent technical problem to be solved provides a kind of simple in structure easy and simple to handle and be difficult for the arc core-pulling structure that is used for injection mold of clamping stagnation; In circular arc mold insert knockout course; This structure can realize delay function, guarantees the safe and reliable of knockout course; When after the demoulding is accomplished, loosing core beginning, can unclamp slide block immediately, make it to accomplish loosing core of second stage; And in the process of loosing core, can guarantee the reliable and stable of this slide block movement again; Generally speaking, optimize the result of loosing core.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of arc core-pulling structure that is used for injection mold comprises oil cylinder, slide block, is hinged on circular arc mold insert in the slide block, is used to drive the actuator of circular arc mold insert, the locking member of lock slider when being used for matched moulds; Said oil cylinder drives slide block through actuator; Said locking member is located at slider bottom;
Said actuator comprises sliding shoe and the contiguous block that is attached thereto; Said sliding shoe is located in the slide block and is connected with said circular arc mold insert, and it is interior and be connected with oil cylinder that said contiguous block is embedded in cavity that slide block and locking member form;
Said contiguous block and locking member are provided with time-delay structure, and this time-delay structure comprises first projection that is located on the contiguous block and is located on the locking member and is used for the groove of contiguous block time-delay stroke; Under the matched moulds state, said contiguous block fits with slide block and locking member respectively; Said first projection is embedded in groove one side;
Also be provided with unlocking structure on said contiguous block and the locking member; Said unlocking structure comprises first lozenges that is located on first projection and second lozenges that is located at the relative opposite side of groove; After first projection slided into the relative opposite side of this groove, first lozenges upwards slided along second lozenges; Said locking member bottom also is provided with the return unit of the locking member that is used to reset;
After first projection slided into the relative opposite side of this groove, said contiguous block connected through keeper and slide block.
Preferably, said keeper comprises second projection that is located at the contiguous block top and the corresponding continuing surface on the slide block.
Preferably, said return unit is a spring.
Preferably, said mould is provided with the stop screw of the movement position that is used to limit this contiguous block.
The utility model has following beneficial effect with respect to prior art: the arc core-pulling structure that is used for injection mold that the utility model provided, simple in structure, it is through optimizing structure, and realizes the first demoulding ground process of loosing core again easily.In said process, because of the former phenomenon that is not prone to clamping stagnation of the optimization of structure, avoid drawing bad product, guarantee the quality of injecting products, optimize the effect of loosing core.Simultaneously, this arc core-pulling structure is through the design of keeper, thereby guarantees that in the process of loosing core this slide block moves with contiguous block, and sports safety is reliable, again the suboptimization effect of loosing core.
Description of drawings
Fig. 1 to Fig. 4 is the state diagram of the utility model when being used for the arc core-pulling structure matched moulds of injection mold;
Fig. 5 to Fig. 8 is the state diagram that the utility model is used for the arc core-pulling structure arc core-pulling phase I of injection mold;
Fig. 9 to Figure 12 is the state diagram that the utility model is used for the arc core-pulling structure arc core-pulling second stage of injection mold.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but the embodiment of utility model is not limited thereto.
Shown in Fig. 1-4; The locking member 5 of a kind of arc core-pulling structure that is used for injection mold, the actuator 4 that it comprises the oil cylinder 1, the slide block 2 that are located on the mould, be hinged on circular arc mold insert 3 in the slide block 2, be used to drive circular arc mold insert 3 lock slider 2 when being used for matched moulds.This oil cylinder 1 drives slide block 2 through actuator 4; This locking member 5 is located at slide block 2 bottoms.One end of this circular arc mold insert 3 is hinged in the slide block through rotating shaft.The contiguous block 42 that actuator 4 comprises sliding shoe 41 and is attached thereto.This sliding shoe 41 is located in the slide block 2 and with the U-lag of circular arc mold insert 3 other ends and is connected, thereby drives this circular arc mold insert.Contiguous block 42 is embedded in the cavity that slide block 2 and locking member 5 form and with oil cylinder 1 and is connected.Under the matched moulds state, contiguous block 42 side and the slide block of arc core-pulling direction is dorsad fitted, and guarantees that the sealing of injection moulding process is reliable.
Also be provided with unlocking structure on contiguous block 42 and the locking member 5; This unlocking structure comprises first lozenges 44 and second lozenges 52 that is located at groove 51 relative opposite sides that is located on first projection 43; After first projection 43 slides into these groove 51 relative opposite sides; First lozenges 44 upwards slides along second lozenges 52, fits until both.
In addition, locking member bottom also is provided with the return unit of the locking member that is used to reset.This return unit this locking member 5 that resets when being used for matched moulds.In the present embodiment, return unit is a spring 6.
Shown in Fig. 2-8, the arc core-pulling phase I: this stage is the knockout course of circular arc mold insert, and the circular arc mold insert is under the drive of actuator, and beginning is rotated around rotating shaft, thereby separates with the circular arc position.In this stage, need " locking " slide block, make it and can not move.So contiguous block 42 is provided with time-delay structure with locking member 5, this time-delay structure comprises first projection 43 that is located on the contiguous block 42 and is located on the locking member 5 and is used for the groove 51 of contiguous block 42 time-delay strokes.Under the matched moulds state, said contiguous block 42 fits with slide block 2 and locking member 5 respectively; And first projection 43 is embedded in groove 51 1 sides.This contiguous block 42 moves to the relative opposite side of this groove 51 from a side of groove 51 along groove 51, the distance that contiguous block 42 moves is h1.
When after the demoulding is accomplished, loosing core beginning, need this moment locking member to unclamp slide block, slide block is loosed core.So also be provided with unlocking structure on contiguous block 42 and the locking member 5, this unlocking structure comprises first lozenges 44 and second lozenges 52 that is located at groove 51 relative opposite sides that is located on first projection 43.After first projection 43 slides into these groove 51 relative opposite sides, thereby first lozenges 44 upwards slides along second lozenges 52 and pushes locking member 5 downwards.Because of this squeezing action, this locking member 5 unclamps slide block 2, thereby accomplishes unlocking function.
Shown in Fig. 3-12, in the arc core-pulling second stage, promptly first projection 43 slides h1 behind these groove 51 relative opposite sides, and contiguous block 42 connects through keeper and slide block 2; Keeper comprises the corresponding continuing surface 21 on second projection 45 that is located at contiguous block 42 tops and the slide block 2.In the arc core-pulling phase I, this second projection 45 staggers with continuing surface 21 each other, and the distance that both stagger is the distance h 1 that contiguous block 4 slides.Because contiguous block 42 is connected with slide block 2,, contiguous block 42 moves both associated movement h2 together so driving slide block 2.Mould is provided with the stop screw 7 that is used for limiting in the arc core-pulling second stage movement position of this contiguous block 42.When contiguous block 42 move distances amount to h, h=h1+ h2.Thereby contiguous block 42 touches the motion that this stop screw stops this direction, promptly accomplishes the whole process of loosing core.
In addition, in reseting procedure, oil cylinder 1 promotes contiguous block 42 reverse movements.The active force that this contiguous block 42 acts on locking member reduces, so this locking member resets under the effect of spring 7 gradually.Certainly, second projection 45 is separated with continuing surface 2, thereby causes contiguous block 42 and slide block 2 to be separated.When contiguous block 42 move distances reached h2, slide block 2 resetted and is locked once more.
The foregoing description is merely the preferred embodiment of the utility model, is not the practical range that is used for limiting the utility model.Be that all equalizations of being done according to the utility model content change and modification, all contained by the utility model claim scope required for protection.
Claims (4)
1. the locking member (5) of arc core-pulling structure that is used for injection mold, the actuator (4) that comprise oil cylinder (1), slide block (2), be hinged on circular arc mold insert (3) in the slide block (2), is used to drive circular arc mold insert (3) lock slider (2) when being used for matched moulds; Said oil cylinder (1) drives slide block (2) through actuator (4); Said locking member (5) is located at slide block (2) bottom;
It is characterized in that: the contiguous block (42) that said actuator (4) comprises sliding shoe (41) and is attached thereto; Said sliding shoe (41) is located in the slide block (2) and is connected with said circular arc mold insert (3), and it is interior and be connected with oil cylinder (1) that said contiguous block (42) is embedded in cavity that slide block (2) and locking member (5) form;
Said contiguous block (42) is provided with time-delay structure with locking member (5), and said time-delay structure comprises first projection (43) that is located on the contiguous block (42) and is located at the groove (51) that contiguous block (42) time-delay stroke was gone up and be used for to locking member (5); Under the matched moulds state, said contiguous block (42) fits with slide block (2) and locking member (5) respectively; Said first projection (43) is embedded in groove (51) one sides;
Also be provided with unlocking structure on said contiguous block (42) and the locking member (5); Said unlocking structure comprises first lozenges (44) that is located on first projection (43) and second lozenges (52) that is located at the relative opposite side of groove (51); After first projection (43) slided into the relative opposite side of this groove (51), first lozenges (44) upwards slided along second lozenges (52); Said locking member bottom also is provided with the return unit of the locking member that is used to reset;
After first projection (43) slided into the relative opposite side of this groove (51), said contiguous block (42) connected through keeper and slide block (2).
2. the arc core-pulling structure that is used for injection mold according to claim 1 is characterized in that: said keeper comprises second projection (45) that is located at contiguous block (42) top and the corresponding continuing surface (21) on the slide block (2).
3. the arc core-pulling structure that is used for injection mold according to claim 1 is characterized in that: said return unit is spring (6).
4. according to each described arc core-pulling structure that is used for injection mold of claim 1-3, it is characterized in that: said mould is provided with the stop screw (7) of the movement position that is used to limit this contiguous block (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202919845U CN202208091U (en) | 2011-08-12 | 2011-08-12 | Arc core pulling structure for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202919845U CN202208091U (en) | 2011-08-12 | 2011-08-12 | Arc core pulling structure for injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202208091U true CN202208091U (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202919845U Expired - Lifetime CN202208091U (en) | 2011-08-12 | 2011-08-12 | Arc core pulling structure for injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202208091U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737869A (en) * | 2013-12-31 | 2014-04-23 | 宁波和鑫光电科技有限公司 | Secondary step-by-step transverse core-pulling demolding device |
| CN109049545A (en) * | 2018-06-12 | 2018-12-21 | 浙江伟星新型建材股份有限公司 | A kind of mold for U-shaped elbow member injection molding |
| CN109910244A (en) * | 2019-03-22 | 2019-06-21 | 上汽通用五菱汽车股份有限公司 | Tunnel loose core mechanism |
| CN111409236A (en) * | 2020-05-19 | 2020-07-14 | 骏艺精密模具（苏州）有限公司 | Double-slider combined core-pulling mechanism of injection mold |
-
2011
- 2011-08-12 CN CN2011202919845U patent/CN202208091U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103737869A (en) * | 2013-12-31 | 2014-04-23 | 宁波和鑫光电科技有限公司 | Secondary step-by-step transverse core-pulling demolding device |
| CN103737869B (en) * | 2013-12-31 | 2015-12-09 | 宁波和鑫光电科技有限公司 | The horizontal core_pulling demoulding device of a kind of secondary step-by-step |
| CN109049545A (en) * | 2018-06-12 | 2018-12-21 | 浙江伟星新型建材股份有限公司 | A kind of mold for U-shaped elbow member injection molding |
| CN109049545B (en) * | 2018-06-12 | 2023-09-01 | 临海伟星新型建材有限公司 | A mould for injection moulding of U type return bend spare |
| CN109910244A (en) * | 2019-03-22 | 2019-06-21 | 上汽通用五菱汽车股份有限公司 | Tunnel loose core mechanism |
| CN111409236A (en) * | 2020-05-19 | 2020-07-14 | 骏艺精密模具（苏州）有限公司 | Double-slider combined core-pulling mechanism of injection mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120502 |