CN202162974U - Inclined-ejection core pulling mechanism for injection mold - Google Patents
Inclined-ejection core pulling mechanism for injection mold Download PDFInfo
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- CN202162974U CN202162974U CN2011202920109U CN201120292010U CN202162974U CN 202162974 U CN202162974 U CN 202162974U CN 2011202920109 U CN2011202920109 U CN 2011202920109U CN 201120292010 U CN201120292010 U CN 201120292010U CN 202162974 U CN202162974 U CN 202162974U
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- core
- oblique
- mold
- slide block
- injection mold
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Abstract
The utility model discloses an inclined-ejection core pulling mechanism for an injection mold. The inclined-ejection core pulling mechanism for the injection mold comprises a sliding block arranged on a movable mold, a stationary mold locking block used for locking the sliding block during mold assembly, and a driving mechanism used for driving the sliding block to realize sidewise core pulling; the core pulling mechanism also comprises an inclined mold core, a formed product inverted-buckling rubber position is arranged at the outer side of the inclined mold core, and a first retractable inclined plane leading to the center of a product is arranged at the inner side of the inclined mold core; a sliding cavity is arranged on the sliding block and a second inclined plane is correspondingly arranged in the sliding cavity; the inclined mold core is arranged in the sliding cavity, in the mold assembly state, the first inclined plane is jointed with the second inclined plane; a time delay part extending out of the sliding cavity is arranged at the tail end of the inclined mold core, and the stationary mold locking block is provided with a vertical surface in parallel with the mold opening direction of the movable mold and used for providing the demolding travel for the inclined mold core; and in the mold assembly state, the time delay part leans against the vertical surface. In the demolding process of the inclined mold core, the core pulling structure ensures the inclined mold core to be stationary relatively and not to be driven by the sliding block, so the products are protected from excessive pulling force, and the core pulling effect is optimized.
Description
Technical field
The utility model relates to the injection mold technical field, particularly a kind of oblique top that is used for injection mold structure of loosing core.
Background technology
In general, injecting products should reduce the situation that the side is provided with back-off as far as possible, because of it is difficult for loosing core, in the process of loosing core, very likely damages this product, thereby has a strong impact on the yield rate of this product.
Along with market is complicated, as shown in Figure 1 day by day to the requirement of injecting products, needs the side to be provided with back-off D on the product and realize and being connected of other products part that this kind situation is more and more general.For the ease of this side core-pulling, generally adopt oblique top core-pulling mechanism.Traditional side core-drawing mechanism utilizes slide block directly to drive moving core, when this moving core breaks away from product sheet back-off position, because of stressed too quickly regular meeting damages back-off.
When loosing core, in order to reduce the active force that moving core receives, people are divided into two stages with this side core-pulling, i.e. side core-pulling phase I and side core-pulling second stage.
The side core-pulling phase I: this stage is the knockout course of oblique core; On the die sinking direction, dynamic model drives slide block and oblique core moves together; On the side core-pulling direction, this oblique core does not move with slide block, and slide block is driven by driving mechanism and slides certain stroke L1 voluntarily, and because of the extruding force of the slide block that affords reduces, unclamp at the back-off position of this oblique core and product.In this stage, the problem of existence is that oblique core usually can be driven by slide block, draws bad product.
The side core-pulling second stage: this stage is the process of loosing core, and on the die sinking direction, dynamic model continues to drive slide block and oblique core moves together; On the side core-pulling direction, slide block drives this oblique core and slides, thereby reaches the purpose of loosing core.In this stage, because in the phase I, staggered respective between the inclined-plane of the guide rail of slide block and oblique core, if this moment, both did not have connection, then relative slip can take place between the two, influence the effect of loosing core.
Like publication number is that the patent of invention of CN101947837 discloses a kind of slide block direction of loosing core and has the structure of loosing core of back-off; In this structure; Latch segment drives slide block to away from line of production motion, and tiltedly the top mold insert is that obstruction that oblique core keeps receiving product back-off part can't be followed slide block and moved guide rail and projection generation relative motion together; Make guide rail inwardly shrink; Drive oblique top mold insert and inwardly shrink, partly accomplish until the outside of oblique top mold insert and back-off and loose core, tiltedly the top mold insert is accomplished integral body together and is loosed core along with slide block afterwards.In the knockout course of oblique top mold insert, because of the horizontal force on the inclined-plane that can't balance receives, this oblique top mold insert usually can be driven by slide block, draws bad product.
In sum, the present oblique structure of loosing core of pushing up exists main weak point to be: in oblique core knockout course, tiltedly core usually by the slide block drive, influences the effect of loosing core, and draws bad product.
The utility model content
The utility model patent technical problem to be solved provides a kind of oblique top that is used for injection mold structure of loosing core; In oblique core knockout course, this structure of loosing core guarantees that oblique core is static relatively, can not driven by slide block; Avoid the stressed mistake bad product of wrenching, optimize the effect of loosing core.
Further, the utility model technical problem that will solve is: guarantee this oblique core reliable and stable with the slide block lateral sliding.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: comprise the slide block, cover half latch segment of locking slide block when being used for matched moulds and the driving mechanism that is used for the driving sliding block side core-pulling that are located on the dynamic model; Comprise that also the outside is provided with the oblique core of shaped article back-off glue position, the inboard of said oblique core is provided with leads to first inclined-plane that product center is shunk; Said slide block is provided with sliding cavity, corresponding second inclined-plane that is provided with in the said sliding cavity; Said oblique core places in this sliding cavity, and under the matched moulds state, said first inclined-plane and second inclined-plane fit; This oblique core end is provided with the time delay part that passes this sliding cavity, and said cover half latch segment has the vertical plane that is parallel to dynamic model die sinking direction and is used for time delay part time-delay stroke; Under the matched moulds state, said time delay part is resisted against on this vertical plane.
Further, in the side core-pulling second stage, said oblique core is located through positioning element and this slide block and is slided with slide block.
Preferably, said positioning element comprises spring ripple pearl and two grooves; Said spring ripple pearl is located on the slide block; Said two grooves all are located on the oblique core, and the distance that on oblique core, slides apart from respective slide between the two.Under the matched moulds state, this spring ripple pearl and one of them groove fasten, and are used for the location.After tiltedly the core demoulding finished, promptly after slide block slided certain stroke L1, spring ripple pearl and the corresponding fastening of another groove were located slide block and oblique core once more, and both motions is reliable and stable after can guaranteeing.
Preferably, said time delay part is made into integration with oblique core, saves cost.
Preferably, the part of said time delay part for making separately, said time delay part is fixedly connected with oblique core, is convenient to dismounting.
Preferably, said driving mechanism is that an end is located at the Angle Pin on the cover half, correspondingly on the said slide block is provided with perforation; Under the matched moulds state, this Angle Pin other end passes this perforation, and said slide block set is provided thereon.
Preferably, first section of said oblique core and/or time delay part are provided with keeper.
Preferably, said keeper is the braking roll shoulder.
Preferably, said keeper is a shop bolt.
The utility model has following beneficial effect with respect to prior art: the oblique top that is used for injection mold that the utility model the provided structure of loosing core, and simple in structure.Thereby it can realize the action of loosing core of product back-off position easily through the design time delay part, thereby avoids oblique core to follow slide block movement and draw bad product in the side core-pulling phase I, guarantees the quality of injecting products, optimizes the effect of loosing core.Simultaneously, its design through positioning element also can guarantee that this oblique core follows this slide block in the side core-pulling second stage and move together, and this sports safety is reliable, again the suboptimization effect of loosing core.
Description of drawings
Structure chart when the structure matched moulds is loosed core on the oblique top that Fig. 1 is used for injection mold for prior art;
Structure chart when the structure matched moulds is loosed core on the oblique top that Fig. 2 is used for injection mold for the utility model;
The loose core structure chart of structure side core-pulling phase I of the oblique top that Fig. 3 is used for injection mold for the utility model;
The loose core structure chart of structure side core-pulling second stage of the oblique top that Fig. 4 is used for injection mold for the utility model.
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.
As shown in Figure 2, a kind of oblique top that is used for injection mold structure of loosing core, it comprises two oblique cores 1, be located at slide block 2 on the dynamic model, the cover half latch segment 3 and the driving mechanism that is used for driving sliding block 2 side core-pullings of locking slide block 2 when being used for matched moulds.The quantity of this oblique core is unrestricted, can be one or more.In addition, the outside of this oblique core 1 and/or time delay part 11 are provided with keeper 13.This keeper 13 is generally the stop shaft shoulder or alignment pin.In the matched moulds process, this stop crossette or shop bolt are run into static relatively dynamic model or cover half mold insert, thereby reach the effect of location.In addition, tiltedly core 1 is located through positioning element and this slide block 2.This positioning element comprises spring ripple pearl 22 and two grooves 12; Pearl is located on the slide block 2 the spring ripple.These two grooves 12 all are located on the oblique core 1, and the distance that on oblique core 1, slides apart from respective slide 2 between the two.Under the matched moulds state, this spring ripple pearl 22 is interlocked with one of them groove, is used for the location of slide block 2 and oblique core 1.
The inboard of this oblique core 1 is provided with first inclined-plane 14; Slide block 2 is provided with sliding cavity 21, corresponding second inclined-plane 24 that is provided with in the said sliding cavity 21.Tiltedly core 1 places in this sliding cavity 21, and under the matched moulds state, said first inclined-plane 14 and second inclined-plane 24 fit.In addition, this oblique core end is provided with the time delay part 11 that passes this sliding cavity 21, and this cover half latch segment 3 has the vertical plane 31 that is parallel to dynamic model die sinking direction and is used for time delay part 11 time-delay strokes; Under the matched moulds state, said time delay part 11 is resisted against on this vertical plane 31.Simultaneously, the other end of this Angle Pin 4 passes this perforation 23, and this slide block 2 is on it sheathed, and this Angle Pin can be along these 23 slips of boring a hole.
In addition, this time delay part 11 both can be made into integration with oblique core 1, practiced thrift cost.This time delay part 11 also can be the part of making separately, and all the other oblique cores 1 are fixedly connected, and are for convenience detach.In this example, this time delay part 11 both can be made into integration with oblique core 1.
As shown in Figure 3, the side core-pulling phase I: this stage is the knockout course of oblique core, and on the die sinking direction, cover half separates at the A place with dynamic model.Dynamic model drives slide block and oblique core moves together, and the distance of its motion is LA.On the side core-pulling direction, this oblique core 1 does not move with slide block, and its time delay part 11 along with dynamic model slides along this vertical plane 31, to the edge of this vertical plane 31, is accomplished its delay function on the die sinking direction.Slide block 2 is driven by Angle Pin 4 and slides a segment distance L1 voluntarily.This oblique core 1 inboard is provided with first inclined-plane 14.Because of leaving of slide block 2, the squeezing action power that this first inclined-plane 14 bears reduces, thus this oblique core 1 unclamp with the back-off position of product, thereby accomplish the knockout course of oblique core 1.And sliding block spring ripple pearl 22 and another groove 12 corresponding fastenings are positioned at slide block 2 once more with oblique core 1, the process thereby assurance next stage slide block 2 and oblique core 1 reliable and stable completion are loosed core.
As shown in Figure 4, the side core-pulling second stage: this stage is the process of loosing core, and on the die sinking direction, dynamic model continues to drive slide block 2 and oblique core 1 moves together, and the total distance of its motion this moment is LB.On the side core-pulling direction, tiltedly core 1 is located through positioning element and this slide block 2 and is slided with slide block 2, thereby reaches the purpose of loosing core.
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 (9)
1. an oblique top that is used for injection mold structure of loosing core comprises the slide block (2) that is located on the dynamic model, the cover half latch segment (3) and the driving mechanism that is used for driving sliding block (2) side core-pulling of locking slide block (2) when being used for matched moulds; It is characterized in that: comprise that also the outside is provided with the oblique core (1) of shaped article back-off glue position, the inboard of said oblique core (1) is provided with first inclined-plane (14); Said slide block (2) is provided with sliding cavity (21), corresponding second inclined-plane (24) that is provided with in the said sliding cavity (21); Said oblique core (1) places in this sliding cavity (21), and under the matched moulds state, said first inclined-plane (14) fits with second inclined-plane (24); This oblique core end is provided with the time delay part (11) that passes this sliding cavity (21), and said cover half latch segment (3) has the vertical plane (31) that is parallel to dynamic model die sinking direction and is used for time delay part (11) time-delay stroke; Under the matched moulds state, said time delay part (11) is resisted against on this vertical plane (31).
2. the oblique top that the is used for injection mold according to claim 1 structure of loosing core is characterized in that: said oblique core (1) is located through positioning element and this slide block (2).
3. the oblique top that the is used for injection mold according to claim 2 structure of loosing core is characterized in that: said positioning element comprises spring ripple pearl (22) and two grooves (12); Said spring ripple pearl is located on the slide block (2); Said two grooves (12) all are located on the oblique core (1), and the distance that on oblique core (1), slides apart from respective slide (2) between the two.
4. the oblique top that the is used for injection mold according to claim 1 structure of loosing core is characterized in that: said time delay part (11) is made into integration with oblique core (1).
5. the oblique top that the is used for injection mold according to claim 1 structure of loosing core is characterized in that: the part of said time delay part (11) for making separately, said time delay part (11) is fixedly connected with oblique core (1).
6. according to each described oblique top that is used for injection mold of claim 1-5 structure of loosing core, it is characterized in that: said driving mechanism is that an end is located at the Angle Pin (4) on the cover half, and said slide block (2) is gone up the corresponding perforation (23) that is provided with; Under the matched moulds state, this Angle Pin (4) other end passes this perforation (23), and said slide block (2) is sheathed on the Angle Pin (4).
7. the oblique top that the is used for injection mold according to claim 6 structure of loosing core, it is characterized in that: the outside of said oblique core (1) and/or time delay part (11) are provided with keeper (13).
8. the oblique top that the is used for injection mold according to claim 7 structure of loosing core is characterized in that: said keeper (13) is the braking roll shoulder.
9. the oblique top that the is used for injection mold according to claim 8 structure of loosing core, it is characterized in that: said keeper (13) is a shop bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202920109U CN202162974U (en) | 2011-08-12 | 2011-08-12 | Inclined-ejection core pulling mechanism for injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202920109U CN202162974U (en) | 2011-08-12 | 2011-08-12 | Inclined-ejection core pulling mechanism for injection mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202162974U true CN202162974U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202920109U Expired - Lifetime CN202162974U (en) | 2011-08-12 | 2011-08-12 | Inclined-ejection core pulling mechanism for injection mold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202162974U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527786A (en) * | 2018-06-06 | 2018-09-14 | 珠海格力精密模具有限公司 | A kind of injection mold and its time-lapse core pulling mechanism |
| CN108858914A (en) * | 2018-07-12 | 2018-11-23 | 宁波华众塑料制品有限公司 | A kind of time delay slide block component |
| CN108973041A (en) * | 2018-09-06 | 2018-12-11 | 台州市凯华汽车模具有限公司 | Injection mould slide block is stirred and stop locking integral mechanism |
| CN111923331A (en) * | 2020-07-14 | 2020-11-13 | 浙江长珑车灯股份有限公司 | Double-color injection mold for motorcycle tail lamp shade |
-
2011
- 2011-08-12 CN CN2011202920109U patent/CN202162974U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108527786A (en) * | 2018-06-06 | 2018-09-14 | 珠海格力精密模具有限公司 | A kind of injection mold and its time-lapse core pulling mechanism |
| CN108527786B (en) * | 2018-06-06 | 2023-09-22 | 珠海格力精密模具有限公司 | Injection mold and time delay core pulling mechanism thereof |
| CN108858914A (en) * | 2018-07-12 | 2018-11-23 | 宁波华众塑料制品有限公司 | A kind of time delay slide block component |
| CN108858914B (en) * | 2018-07-12 | 2024-02-02 | 宁波华众塑料制品有限公司 | Time-delay sliding block assembly |
| CN108973041A (en) * | 2018-09-06 | 2018-12-11 | 台州市凯华汽车模具有限公司 | Injection mould slide block is stirred and stop locking integral mechanism |
| CN111923331A (en) * | 2020-07-14 | 2020-11-13 | 浙江长珑车灯股份有限公司 | Double-color injection mold for motorcycle tail lamp shade |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
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| CX01 | Expiry of patent term |