CN103395174A - Die core-pulling structure with high-coaxiality conical dimming gear - Google Patents
Die core-pulling structure with high-coaxiality conical dimming gear Download PDFInfo
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- CN103395174A CN103395174A CN2013103161655A CN201310316165A CN103395174A CN 103395174 A CN103395174 A CN 103395174A CN 2013103161655 A CN2013103161655 A CN 2013103161655A CN 201310316165 A CN201310316165 A CN 201310316165A CN 103395174 A CN103395174 A CN 103395174A
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- taper light
- modulation gear
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Abstract
The invention provides a die core-pulling structure with a high-coaxiality conical dimming gear. The die core-pulling structure comprises a movable die, a fixed die and core-pulling components, wherein a movable die embedding block is fixed on the movable die; a fixed die embedding block is fixed on the fixed die; a first cavity for forming the upper part of the conical dimming gear is formed in the fixed die embedding block; a pouring gate is connected with the upper side of the first cavity; each core-pulling component comprises a large sliding block, a movable embedding block and an inclined guide column; the large sliding block is arranged on the movable die; the movable embedding block is arranged on the large sliding block; a first inclined guide column hole is formed in the large sliding block; a second inclined guide column hole is formed in the movable embedding block; one end of the inclined guide column is connected with an inclined guide column pressing block fixed on the fixed block, and the other end of the inclined guide column penetrates through the first inclined guide column hole and the second inclined guide column hole; the two groups of core-pulling components are symmetrically arranged. The pouring gate of the die core-pulling structure is formed above the cavity and can realize pouring from top to bottom, so that the obtained conical dimming gear molded piece is high in coaxiality, and the quality defect of a product caused by lateral pouring in the prior art can be avoided.
Description
Technical field
The invention belongs to technical field of mold, be specifically related to a kind of mould core pulling mechanism with high-axiality taper light modulation gear.
Background technology
Along with the development of Domestic Automotive Industry, also more and more higher to the requirement of car mass, function.Present most of car light all has automatic dimming function, to driving at night, brings great convenience; When driving at night, the change of direction of traffic, car bulb can followed together and rotated.Automobile lamp has dimming function and be unable to do without associated core part: taper light modulation gear.
Due to taper light modulation gear be a core part of intelligent automotive light, very high to the quality requirement of product.usually adopt at present the raw material injection moulding taper light modulation gear of fiber reinforcement PA66 in industry, the performance indications such as the mechanical property of glass fibre reinforced plastic PA66 and shrinkage factor are very good, but because the length dimension of glass fibre is far longer than radial dimension, the glass fibre reinforced plastic PA66 all shows larger anisotropic properties at aspects such as mechanical property and shrinkage factors, yet, design feature (as shown in Figure 1) due to taper light modulation gear, existing Tool and Die Technology can only adopt side gate to carry out injection moulding, the inside mechanical heterogeneity that will inevitably cause injection-molded item, greatly affected the working strength of product.Product strength is lower, is difficult to meet the requirement of using, and causes the inefficacy that turns to of automobile lamp, causes the potential safety hazard of driving.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of mould core pulling mechanism with taper light modulation gear of high-axiality, adopt the present invention, the gate location of mould can be arranged on conical tooth top, from top to bottom pour into a mould, and the product of injection mo(u)lding of the present invention has high-axiality, the quality of item defect of having avoided existing employing side cast to cause.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of mould core pulling mechanism with high-axiality taper light modulation gear, comprise dynamic model, cover half, the assembly of loosing core; Wherein, be fixed with moving die insert on described dynamic model, be fixed with fixed die insert on described cover half, described moving die insert and described fixed die insert are oppositely arranged, described fixed die insert is provided with the first die cavity for the top of moulding taper light modulation gear wheel, and the top of described the first die cavity is connected with cast gate;
The described assembly of loosing core comprises large slide block, loose plug and Angle Pin; Described large slide block is placed on dynamic model, described loose plug is placed on large slide block, described large slide block is provided with the first slanting guide pillar hole, described loose plug is provided with the second slanting guide pillar hole, one end of Angle Pin is connected with the Angle Pin briquetting on being fixed on cover half, and the other end passes described the first slanting guide pillar hole and the second slanting guide pillar hole;
The described assembly of loosing core has two groups and be symmetrical arranged, and is formed for being formed between the second die cavity of moulding conical tooth, two groups of described large slide blocks the 3rd die cavity of moulding taper light modulation gear wheel bottom between two groups of loose plugs;
Described the first die cavity, the second die cavity and the 3rd die cavity set gradually up and down and are communicated with, and form the die cavity of complete moulding taper light modulation gear wheel.
Further, the number of described die cavity and described cast gate is two.
Further, the top of described large slide block is set to two parts, a part is made as inclined-plane, another part is made as projection, and described inclined-plane and described projection are the integral type setting, described projection is in the end away from die cavity, and described inclined-plane has a down dip in the side direction to being provided with die cavity, and the top of described large slide block is equipped with T-shaped gib block;
The bottom of described loose plug is equipped with the chamfered portion on large slide block, and the bottom of described loose plug is provided with chute; Described T-shaped gib block on described large slide block is placed in the described chute of described loose plug.
Further, described the first slanting guide pillar hole be shaped as circle, described the second slanting guide pillar hole be shaped as Long Circle.
Further, described loose plug is provided be used to the position-limit mechanism that limits described loose plug sliding distance in described large slip.
Further, described position limiting structure comprises stop screw and spacing hole, and described spacing hole is arranged on described loose plug, and described stop screw is settled in described spacing hole, and described stop screw bottom is connected with described T-shaped gib block.
Further, described spacing hole is shaped as Long Circle.
Further, be provided with return spring between described large slide block and described loose plug.
Further, described loose plug is connected with stop mechanism, and described stop mechanism comprises locking pin and locking pin hole, and described locking pin hole is arranged on described loose plug, the head of described locking pin is fixed on described Angle Pin briquetting, and afterbody is placed in described locking pin hole.
Further, described moving platen is provided be used to the position-limitting pin that limits large slide block transverse shifting distance.
The invention has the beneficial effects as follows:
(1) gate location of the present invention is arranged on the top of taper light modulation gear die cavity, can realize from top to bottom pouring into a mould, and makes the taper light modulation gear wheel shaping spare that obtains have high-axiality, and avoids existing and adopt the side cast to cause the quality of item defect.
(2) the vertical demoulding of the conical tooth of the assembly of loosing core that adopts of the present invention, the horizontal demoulding of bottom that can realize taper light modulation gear and taper light modulation gear.
Description of drawings
Fig. 1 is the structural representation of taper light modulation gear;
Fig. 2 is a kind of structural representation with mould core pulling mechanism of high-axiality taper light modulation gear provided by the invention;
Fig. 3 is the decomposing state figure of large slide block provided by the invention and loose plug;
Fig. 4 is the assembled state figure of large slide block provided by the invention and loose plug;
Fig. 5 is the state diagram of the present invention when the cone tooth demoulding of completing taper light modulation gear;
Fig. 6 is the state diagram of the present invention when the complete demoulding of taper light modulation gear.
wherein, 1 cover half fixed head, 2 dynamic mould fixing plates, 3 dynamic models, 4 cover half, 42 sprue bush, 31 moving die inserts, 41 fixed die inserts, 5 taper light modulation gears, 51 taper light modulation gear tops, 52 angular wheels, 53 conical tooth necks, 54 taper light modulation gear tops, 6 large slide blocks, 60 projections, 61 wear-resistant blocks, 62T type gib block, 63 first slanting guide pillar holes, 64 return springs, 65 springs are held up pin, 66 screws, 67 limited screws, 7 loose plugs, 71 position-limitting pins, 72 locking pins, 73 second guide pillar holes, 74 position-limitting pin holes, 75 locking pin holes, 8 Angle Pins, 81 Angle Pin briquettings.
The specific embodiment
, in order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is described in further detail.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the structural representation of taper light modulation gear, its left figure and right figure represent respectively the taper light modulation gear of turned upside down, and it mainly comprises three parts: taper light modulation gear top 51, conical tooth 52 and taper light modulation gear bottom 54(comprise the conical tooth neck 53 that is positioned at conical tooth 52 bottoms); Conical tooth 52 is due to circle distribution, so the laterally demoulding of conical tooth 52 can realize the horizontal demoulding after taper light modulation gear bottom 54 is cut open from centre.
The present embodiment provides a kind of mould core pulling mechanism with taper light modulation gear of high-axiality, and as shown in Figure 2, it mainly comprises dynamic model 3, cover half 4, the assembly of loosing core; Wherein, be fixed with moving die insert 31 on dynamic model 3, be fixed with fixed die insert 41 on cover half 4, moving die insert 31 is oppositely arranged with fixed die insert 41, fixed die insert 41 is provided with the first die cavity for the top of moulding taper light modulation gear wheel, the top of the first die cavity is connected with cast gate, and the outside of cast gate is provided with sprue bush 42.
The assembly of loosing core comprises large slide block 6, loose plug 7 and Angle Pin 8; Large slide block 6 is placed on dynamic model 3, loose plug 7 is placed on large slide block 6 slidably, large slide block 6 is provided with the first slanting guide pillar hole 63, loose plug 7 is provided with the second slanting guide pillar hole 73, one end of Angle Pin 8 is connected with the Angle Pin briquetting 81 on being fixed on cover half 4, and the other end passes the first slanting guide pillar hole 63 and the second slanting guide pillar hole 73.
The assembly of loosing core has two groups and be symmetrical arranged, and is formed for being formed between the second die cavity of moulding conical tooth, two groups of large slide blocks 6 the 3rd die cavity of moulding taper light modulation gear wheel bottom between two groups of loose plugs 7.
The first die cavity, the second die cavity and the 3rd die cavity set gradually up and down and are communicated with, and form the die cavity of complete moulding taper light modulation gear wheel.
As shown in Figure 3 and Figure 4, the top of large slide block 6 is set to two parts, and a part is made as inclined-plane, another part is made as projection 60, and inclined-plane and projection 60 are the integral type setting, projection 60 ends that are in away from die cavity, and inclined-plane 60 has a down dip in the side direction towards being provided with die cavity.Fix two horizontal T-shaped gib blocks 62 on large slide block.
The bottom of loose plug 7 is equipped with the chamfered portion on large slide block 6, and namely the bottom of loose plug 7 is made as the incline direction inclined-plane opposite with inclined-plane incline direction on slide block 6 greatly.Loose plug 7 is provided with two horizontal chutes, and two T-shaped gib blocks 62 on large slide block 6 are placed in respectively in the chute of loose plug 7, and loose plug 7 is slided with respect to large slide block 6 along T-shaped gib block 62.
As a preferred embodiment of the present invention, the number of above-mentioned die cavity for moulding taper light modulation gear wheel is two, and such injection cycle just can be completed 2 angular wheel profiled members.
As a preferred embodiment of the present invention, the first slanting guide pillar hole 63 be shaped as circle, described the second slanting guide pillar hole 73 be shaped as Long Circle.
As a preferred embodiment of the present invention, loose plug 7 is provided with for restraint 7 position-limit mechanisms at the large sliding distance on 6 of sliding of inserting.Position-limit mechanism is preferably position-limitting pin 71 and position-limitting pin hole 74, and position-limitting pin hole 74 is arranged on loose plug 7, and position-limitting pin 71 is placed in position-limitting pin hole 74, and the bottom of position-limitting pin is connected with T-shaped gib block 62; Position-limitting pin hole 74 be shaped as Long Circle.
As a preferred embodiment of the present invention, loose plug 7 is connected with stop mechanism, and stop mechanism comprises locking pin 72 and locking pin hole 74, and the head of locking pin 72 is fixed on Angle Pin briquetting 81, tail end is placed in locking pin hole 74, locking pin hole 74 be shaped as circle.
As a preferred embodiment of the present invention, projection 60 and loose plug 7, by return spring 64, connect, and return spring 64 is provided with spring with projection 61 ends that are connected and holds up pin 65.
As a preferred embodiment of the present invention, large slide block 6 is being fixed with wear-resistant block 61 with an opposite side of die cavity by screw 66.
As a preferred embodiment of the present invention, dynamic model 3 is provided be used to the position-limitting pin 67 that limits large slide block 6 horizontal sliding distances.
The specifically process of loosing core of the mould core pulling mechanism of the present embodiment provides a kind of taper light modulation gear with high-axiality is:
1) after injection moulding is completed, mould is opened, dynamic model 3 is drop-down, taper light modulation gear wheel shaping spare is along with dynamic model 3 moves down, the top moulding of fixed die insert 41(taper light modulation gear is inserted) owing to being fixed on cover half 4, drop-down along with dynamic model 4, fixed die insert 41 breaks away from taper light modulation gear wheel shaping spares, namely completes the top demoulding of taper light modulation gear wheel shaping spare.
2) when mould is opened, under the effect of Angle Pin 8, the large slide block 6 on two groups of assemblies of loosing core laterally shifts out in the opposite direction, just can complete the bottom demoulding of taper light modulation gear wheel shaping spare.
3) when large slide block laterally shifts out, also in the locking pin hole 74 of loose plug 7, solid loose plug 7 can not the transverse shifting motion due to locking pin 72, loose plug 7 and just can produce transversion malposition between slide block 6 greatly.loose plug 7 must slide by T-shaped gib block 62 on large slide block 6, and loose plug 7 stretching return springs 64, and due to the ramp structure on large slide block 6 tops, Gu loose plug 7 meeting vertical drop, when loose plug 7 vertical drop arrive neck 53 position of taper light modulation gear, at this moment, because making loose plug 7, the effect of the position-limit mechanism on loose plug 7 stops moving down (distance that loose plug 7 vertically moves down rely on position-limitting pin 71 mobile spacing in waist type position-limitting pin 74 holes), and the distance that loose plug 7 vertically moves down equals the degree of depth of locking pin 72 in locking pin hole 74 (state of this moment as shown in Figure 5).
4) after locking pin 72 breaks away from locking pin hole 74, the horizontal position that retracts of the return spring 64 that loose plug 7 is stretched, make it near the projection 60 on large slide block 6, simultaneously also make loose plug 7 away from taper light modulation gear wheel shaping spare, finally completed the demoulding (state of this moment as shown in Figure 6) of conical tooth.
5) after the demoulding, injection machine promotes ejector retainner plate by the top rod and moves forward, with product from mold ejection.
To sum up, the gate location of the mould core pulling mechanism of the taper light modulation gear with high-axiality of the present invention is arranged on the top of taper light modulation gear die cavity, can realize from top to bottom pouring into a mould, make the taper light modulation gear wheel shaping spare that obtains have high-axiality, and avoid existing and adopt the side cast to cause the quality of item defect.The vertical demoulding of the conical tooth of the assembly of loosing core that the present invention adopts, the horizontal demoulding of bottom that can realize taper light modulation gear and taper light modulation gear.
The foregoing is only preferred embodiment of the present invention, not be used for limiting practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is modified or is equal to replacement, all should be encompassed in the middle of the protection domain of the claims in the present invention.
Claims (10)
1. the mould core pulling mechanism with high-axiality taper light modulation gear, is characterized in that, comprises dynamic model, cover half, the assembly of loosing core; Wherein,
Be fixed with moving die insert on described dynamic model, be fixed with fixed die insert on described cover half, described moving die insert and described fixed die insert are oppositely arranged, and described fixed die insert is provided with the first die cavity for the top of moulding taper light modulation gear wheel, and the top of described the first die cavity is connected with cast gate;
The described assembly of loosing core comprises large slide block, loose plug and Angle Pin; Described large slide block is placed on dynamic model, described loose plug is placed on large slide block, described large slide block is provided with the first slanting guide pillar hole, described loose plug is provided with the second slanting guide pillar hole, one end of Angle Pin is connected with the Angle Pin briquetting on being fixed on cover half, and the other end passes described the first slanting guide pillar hole and the second slanting guide pillar hole;
The described assembly of loosing core has two groups and be symmetrical arranged, and is formed for being formed between the second die cavity of moulding conical tooth, two groups of described large slide blocks the 3rd die cavity of moulding taper light modulation gear wheel bottom between two groups of loose plugs;
Described the first die cavity, the second die cavity and the 3rd die cavity set gradually up and down and are communicated with, and form the die cavity of complete moulding taper light modulation gear wheel.
2. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 1, is characterized in that, the number of described die cavity and described cast gate is two.
3. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 2, it is characterized in that, the top of described large slide block is set to two parts, a part is made as inclined-plane, another part is made as projection, and described inclined-plane and described projection be the integral type setting, and described projection is in the end away from die cavity, described inclined-plane has a down dip in the side direction to being provided with die cavity, and the top of described large slide block is equipped with T-shaped gib block;
The bottom of described loose plug is equipped with the chamfered portion on large slide block, and the bottom of described loose plug is provided with chute; Described T-shaped gib block on described large slide block is placed in the described chute of described loose plug.
4. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 3, is characterized in that, described the first slanting guide pillar hole be shaped as circle, described the second slanting guide pillar hole be shaped as Long Circle.
5. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 4, is characterized in that, described loose plug is provided be used to the position-limit mechanism that limits described loose plug sliding distance in described large slip.
6. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 5, it is characterized in that, described position limiting structure comprises stop screw and spacing hole, described spacing hole is arranged on described loose plug, described stop screw is settled in described spacing hole, and described stop screw bottom is connected with described T-shaped gib block.
7. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 6, is characterized in that, described spacing hole be shaped as Long Circle.
8. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 7, is characterized in that, is provided with return spring between described large slide block and described loose plug.
9. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 8, it is characterized in that, described loose plug is connected with stop mechanism, described stop mechanism comprises locking pin and locking pin hole, described locking pin hole is arranged on described loose plug, the head of described locking pin is fixed on described Angle Pin briquetting, and afterbody is placed in described locking pin hole.
10. a kind of mould core pulling mechanism with high-axiality taper light modulation gear according to claim 9, is characterized in that, described moving platen is provided be used to the position-limitting pin that limits large slide block transverse shifting distance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310316165.5A CN103395174B (en) | 2013-07-25 | 2013-07-25 | A kind of mould core pulling mechanism with high-axiality taper light modulation gear |
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| CN201310316165.5A CN103395174B (en) | 2013-07-25 | 2013-07-25 | A kind of mould core pulling mechanism with high-axiality taper light modulation gear |
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| CN103395174A true CN103395174A (en) | 2013-11-20 |
| CN103395174B CN103395174B (en) | 2015-10-28 |
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Cited By (4)
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| CN104044247A (en) * | 2014-06-12 | 2014-09-17 | 泰德兴精密电子（昆山）有限公司 | Mold suitable for producing annular shock absorbers |
| CN106346707A (en) * | 2016-10-26 | 2017-01-25 | 东莞禾盈通用零部件有限公司 | Novel car lamp dimming screw and manufacturing method thereof |
| CN106402125A (en) * | 2016-10-26 | 2017-02-15 | 东莞禾盈通用零部件有限公司 | Car lamp light adjusting screw and manufacturing method thereof |
| CN111331789A (en) * | 2020-03-13 | 2020-06-26 | 上海希荷精密模具有限公司 | Injection mold of gear piece |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104044247A (en) * | 2014-06-12 | 2014-09-17 | 泰德兴精密电子（昆山）有限公司 | Mold suitable for producing annular shock absorbers |
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| CN103395174B (en) | 2015-10-28 |
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Address after: 215431 Taicang City, Jiangsu province Liuhe Town Road No. 228 to 1 buildings, 2 buildings Patentee after: Taicang Branch precision molding Limited by Share Ltd Address before: Liuhe Xinzha village in Taicang city Suzhou city Jiangsu province 215413 Patentee before: Keyi precision molding (Taicang) Co., Ltd. |