CN208895156U - A kind of U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel - Google Patents
A kind of U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel Download PDFInfo
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- CN208895156U CN208895156U CN201820717388.0U CN201820717388U CN208895156U CN 208895156 U CN208895156 U CN 208895156U CN 201820717388 U CN201820717388 U CN 201820717388U CN 208895156 U CN208895156 U CN 208895156U
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Abstract
The utility model has opened a kind of U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel, the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die bilateral symmetry of dual channel, it includes sequentially connected sprue, cross gate, ingate and mold cavity, is connected between the ingate and the mold cavity by ingate.The application structure is simple, the direction that molten metal enters mold cavity is controlled, and then effectively control the flow process that molten metal bath enters die cavity by running gate system, reduce its degree mixed with air, so that integrally filling is good in a mold for molten metal, the ratio that the blistering of kirsite thin-wall part product surface, surface flow liner, loosely organized, intensity is low, conductivity declines is reduced, the qualification rate of product is improved.
Description
Technical field
The application belongs to miniature thin wall pieces placingJi Shu field, specifically, is related to the U-shaped kirsite optical fiber mode of a dual channel
Group thin-wall part structure of cast die.
Background technique
Currently, the miniature kirsite of thin-walled generally refers to the zinc alloy product that wall thickness is 0.1mm~0.5mm, thin-walled is miniature
The filling velocity of zinc alloy diecasting is usually 40m/s or so, and under the action of high-voltage high-speed, molten metal, which initially enters type chamber, is
Fill shape with injection stream, be collided, rub in the filling process, resistance etc. constantly loss when, injection stream becomes pressure current, because
This, the position of injection stream filling is got well than the surface quality at the position filled by pressure current, and the generation of defect, especially bubble
Easily come across the position of pressure current filling.In process of production, easily there is bubble and owes the defects of casting in this kind of zinc alloy product.
Therefore reasonable pouring technology and mold design form important role to casting.The most common defect of zinc alloy diecasting
It is surface blistering, loosely organized, declines so as to cause strength reduction, conductivity, cannot reach quality standards, cause product bad
Rate is high, seriously affects the normal production of product.More seriously, certain defects are difficult to check in die casting semi-finished product
Come, and revealed in processing technology behind, as can be just revealed in plating, this undoubtedly causes to production more tight
The loss of weight.
The reason of causing drawbacks described above is various, but in the prior art all using ingate perpendicular to mold cavity
Structure, it is believed that horizontal component velocity is not present in molten metal in this way, therefore speed loss is smaller when entering mold cavity, fills profile bar part
More preferably.
Utility model content
The shortcomings that purpose of the application is to overcome in the prior art provides a kind of U-shaped kirsite optical fiber of dual channel
Mould group thin-wall part structure of cast die, simple with structure, manufacturing cost is low, effectively reduce molten metal in cavity filling process with
Air mixing, and vortex, the volume gas and then to make product fill type complete generated, blibbing and flow liner are reduced, and surface smoothness mentions
The characteristics of height, product qualification rate improves.
In order to solve the above-mentioned technical problem, the application is achieved through the following technical solutions:
A kind of U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel, the U-shaped kirsite optical fiber of dual channel
Mould group thin-wall part structure of cast die bilateral symmetry comprising sequentially connected sprue, cross gate, ingate and mould type
Chamber is connected between the ingate and the mold cavity by ingate；Both ends of the surface on the length direction of the ingate
Towards the ingate middle part indent and arc-shaped setting；The cross section of the sprue, cross gate, ingate and ingate
Area is gradually reduced along molten metal flow direction；Molten metal is flat in the flow direction of the ingate and the place of the ingate
The flow angle of 30 ° to 45 ° acute angles is provided between face, and the incoming position of the molten metal in the ingate is neighbouring described
The side of mold cavity.
Further, the ingate further includes the two sides in width direction, and two sides are towards close to the mold
The direction of type chamber is bent and is arranged in cambered surface；The running channel width of the ingate is gradually reduced on the flow direction of molten metal.
Further, molten metal is provided between the flow direction of the ingate and the place plane of the ingate
The flow angle of 30 ° to 40 ° acute angles.
Further, the cross gate and the ingate junction are set as the angle R.
Further, the radius at the angle R is 7mm to 10mm.
Further, side of the connecting line of the ingate and the mold cavity apart from the mold cavity is d,
In, d ∈ [0.1mm, 0.5mm].
Further, the d=0.25mm.
Further, the cross section of the cross gate is trapezoidal setting.
Compared with prior art, the beneficial effect of the application is:
The U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of a kind of dual channel described herein, structure is simple,
Design rationally, in running channel, molten metal enters mold cavity by ingate, be at an angle, rather than right angle injection,
Molten metal enters the flow angle of mold cavity, makes it between 30 degree to 45 degree, and the direction that molten metal enters mold cavity is
It is controlled, and then the flow process that molten metal bath enters die cavity by running gate system effectively is controlled, it is mixed with air to reduce it
The degree of conjunction reduces the blistering of kirsite thin-wall part product surface, surface stream so that integrally filling is good in a mold for molten metal
Line, loosely organized, intensity is low, the ratio of conductivity decline, improves the qualification rate of product.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is the structural schematic diagram of the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of the utility model dual channel；
Fig. 2 is the part-structure signal of the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel in Fig. 1；
Fig. 3 is the top view of the structure in Fig. 2；
Fig. 4 is the section view in Fig. 3 along N-N line；
Fig. 5 is the section view in Fig. 3 along M-M line；
Fig. 6 is the partial enlarged view in Fig. 5 at A.
Drawing reference numeral explanation:
1 --- mold cavity,
2 --- ingate,
3 --- cross gate,
4 --- sprue,
5 --- ingate.
The realization, functional characteristics and advantage of the utility model aim will please refer to attached drawing and do furtherly in conjunction with the embodiments
It is bright.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in the present invention is used for description purposes only, and cannot understand
For its relative importance of indication or suggestion or implicitly indicate the quantity of indicated technical characteristic.Define as a result, " first ",
The feature of " second " can explicitly or implicitly include at least one of the features.In addition, the technical side between each embodiment
Case can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution
Conflicting or cannot achieve when occur will be understood that the combination of this technical solution is not present, also not in the requires of the utility model
Protection scope within.
As depicted in figs. 1 and 2, the U-shaped kirsite optical fiber mode group thin-wall part die casting of a kind of dual channel described herein
Structure, the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die bilateral symmetry of dual channel comprising sequentially connected straight
Running channel 4, cross gate 3, ingate 5 and mold cavity 1 are connected between ingate 5 and mold cavity 1 by ingate 2.Wherein,
The cross section of cross gate 3 can be circle, ellipse, triangle, rectangular or trapezoidal etc., and the cross gate 3 in the application is ladder
Shape setting.
Fig. 1, Fig. 3 and Fig. 4 are please referred to, running channel 5 is opened up from cross gate 3 towards mold cavity 1, and prolonging along cross gate 3
It stretches direction to extend with length direction, wherein both ends of the surface on the length direction of ingate 5 are towards in the middle part of ingate 5
Recessed and arc-shaped setting.Sprue 4, cross gate 3, ingate 5 and ingate 2 cross-sectional area along molten metal flow direction by
It is tapered small, and then increase the flow velocity of molten metal, so that the metal flow velocity close to ingate 2 reaches the stream required by filling type well
Speed.
3, Fig. 5 and Fig. 6 is please referred to, molten metal is put down by the direction that ingate 5 enters mold cavity 1 with where ingate 2
The flow angle of 30 degree to 45 degree acute angles is provided between face, and the incoming position of the molten metal in ingate 5 is adjacent to mould type
The side of chamber 1 cooperates incident angle, it is complete to fill type convenient for mold.Referring specifically to Fig. 6, ingate 2 opens up direction towards the side X
To the width direction two sides inclination of ingate 5, so that molten metal is in folder between by the jet direction W and X of ingate 5
Angle α setting, wherein the value of α can be 30 ° to 60 °, preferably 30 ° to 45 °, such as 30 °, 33 °, 35 °, 40 ° and 45 ° etc..Into
And after molten metal flows into ingate 2, there is the component velocity along Y-direction, therefore more completely carry out filling type.Ingate 2 connects
It connects in the upper surface of mold cavity 1, and the connecting line of ingate 2 and mold cavity 1 is close to the side of mold cavity 1, so that
The incoming position of molten metal in ingate 5 improves casting matter adjacent to the side of the mold cavity 1 in order to which mold fills type
Amount.
Further, the ingate 5 further includes the two sides in width direction, and two sides are towards close to the mould
The direction of tool type chamber 1 is bent and is arranged in cambered surface；The running channel width of the ingate 5 on the flow direction of molten metal in gradually subtracting
It is small.Therefore, increase the flow velocity of molten metal in ingate 5, and guiding role is played to the flowing of molten metal, and then reach and fill type
Good required flow velocity.
Wherein, cross gate 3 and 5 junction of ingate are set as the angle R, and the radius at the angle R is 7mm to 10mm.The angle R makes gold
Belong to liquid flowed in running channel it is smooth, from cross gate 3 it is smooth be transitioned into ingate 5.
The junction of ingate 2 and mold cavity 1 is 0.1mm to 0.5mm away from the side of mold cavity 1, preferably
2.5mm.The impact that mold is subject to is buffered when molten metal flow velocity at ingate 2 is excessive, reduces mold corrosion.
The angle for the jet stream that molten metal enters type chamber by ingate is to influence a big factor of product quality.The angle of jet stream
Degree is determined that as shown in Figure 2: X is the horizontal component velocity that molten metal advances along cross gate direction, and W is efflux angle by two component velocities
Degree.
Specifically, casting molding technique parameter is as follows by taking kirsite optical fiber mode group thin-wall part structure of cast die as an example:
Title: optical fiber mode group thin-wall part
Material: kirsite (Zemark3)
Smelting temperature: 420 DEG C
Casting substance: 9g
Mouth of a river weight: 37g
Whole casting embryo weight is 92g, and the substance of casting is only 9g.According to the substance and shape of casting, design is calculated
The shape and size specification of sprue 4, cross gate 3, ingate 5 and ingate 2.
According to the structure of casting, its mobility is analyzed, makes following five kinds of running gate system schemes, the sprue of five kinds of schemes
4, cross gate 3, ingate 5 and the size and shape of ingate 2 all, by changing ingate 5 and ingate 2, change gold
Belong to the angle that liquid is entered by ingate 5 between the direction of mold cavity 1 and the cross section of ingate 2, flow angle is respectively
45°、40°、35°、33°、30°。
Casting forming process is analyzed by digital simulation, to above-mentioned five kinds of casting schemes, with flow simulating software to casting
Stowing operation carry out digital simulation, obtain following analog result:
When flow angle is 45 °, passing through stowing operation film analysis, it can be seen that the change of temperature field of casting is smaller,
Molten metal confluence area is smaller, and volume gas is less, and vortex is few, and whole filling state is preferable, and quality is preferable.
When flow angle is 40 °, by stowing operation film analysis, the change of temperature field of casting is smaller, and molten metal exists
Confluence area is smaller on casting, and volume gas is few, and vortex is few, and casting integrally fills in good condition.
When flow angle is 35 °, by stowing operation film analysis, change of temperature field very little, molten metal is on casting
Confluence area is very small, and volume gas is few, is not vortexed, and casting integrally fills in good condition.
When flow angle is 33 °, by stowing operation film analysis, change of temperature field is minimum, and molten metal is on casting
Confluence area it is smaller, and without volume gas, vortex, whole filling is in good condition.
When flow angle is 30 °, by stowing operation film analysis, change of temperature field is minimum, and molten metal is finally one
A very low range region is converged, and whole filling is in good condition, without volume gas and vortex phenomenon.
Casting fills type situation from the point of view of digital simulation, and the filling effect when flow angle is 30 ° is undoubtedly most
Good.
Die trial product effect compares:
According to the artwork of each casting, corresponding mold is designed, carrys out die casting machine upper testing mould in richness, obtains following sample
Product:
Efflux angle is 45 ° of die trial samples, and blibbing is less, and bubble volume is smaller, and there are a small amount of flow liner phenomenon, casting in surface
Surface smoothness is preferable；
Efflux angle is 40 ° of die trial samples, and blibbing is less, and bubble volume is smaller, and there are a small amount of flow liner phenomenon, casting in surface
Surface smoothness is preferable；
Efflux angle is 35 ° of die trial samples, and blibbing is few, and bubble volume is smaller, and there are a small amount of flow liner phenomenon, casting table in surface
Face finish is preferable；
Efflux angle is 33 ° of die trial samples, and blibbing is few, and bubble volume is small, and surface does not have flow liner phenomenon, cast(ing) surface
Finish is preferable；
Efflux angle is 30 ° of die trial samples, and blibbing is few, and bubble volume is small, and surface does not have flow liner phenomenon, cast(ing) surface
Finish is preferable.
Carry out numerical analysis by the above-mentioned cavity filling process to casting, comparison filling as a result, in conjunction with the sample after die trial,
It can be seen that for miniature zinc alloy thin-wall casting, when metal packed type chamber is non-perpendicular angle, and flow angle at 30 ° extremely
When between 45 °, molten metal fills well in a mold, therefore, when designing mold, it is ensured that ingate 5 and mold cavity 1 it
Between angle between 30 ° to 45 °, obtained kirsite thin-wall part product surface bubble is few, bubble volume is small, and intensity is high, electricity
Conductance is normal, improves the qualification rate of product.When flow angle is 30 °, the filling effect of casting is optimal, and obtained product is good
Rate highest.
Finally, it should be noted that be not intended to limit this application the above is only preferred embodiment of the present application, although
The application is described in detail referring to embodiment, it for those skilled in the art, still can be to aforementioned
Technical solution documented by each embodiment is modified or equivalent replacement of some of the technical features, but it is all
Within spirit herein and principle, any modification, equivalent replacement, improvement and so on should be included in the protection of the application
Within the scope of.
Claims (8)
1. a kind of U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel, it is characterised in that: the dual channel is U-shaped
Kirsite optical fiber mode group thin-wall part structure of cast die bilateral symmetry comprising sequentially connected sprue, cross gate, ingate
And mold cavity, it is connected between the ingate and the mold cavity by ingate；On the length direction of the ingate
Both ends of the surface towards the ingate middle part indent and arc-shaped setting；The sprue, cross gate, ingate and ingate
Cross-sectional area be gradually reduced along molten metal flow direction；Flow direction and the ingate of the molten metal in the ingate
Place plane between be provided with the flow angles of 30 ° to 45 ° acute angles, and the incoming position of the molten metal in the ingate
The side of the neighbouring mold cavity.
2. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 1, feature exist
In: the ingate further includes the two sides in width direction, and two sides are curved towards the direction close to the mold cavity
The setting of Qu Ercheng cambered surface；The running channel width of the ingate is gradually reduced on the flow direction of molten metal.
3. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 1, feature exist
In: molten metal is provided with 30 ° to 40 ° acute angles between the flow direction of the ingate and the place plane of the ingate
Flow angle.
4. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 1, feature exist
In: the cross gate and the ingate junction are set as the angle R.
5. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 4, feature exist
In: the radius at the angle R is 7mm to 10mm.
6. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 1, feature exist
In: side of the connecting line of the ingate and the mold cavity apart from the mold cavity is d, wherein d ∈ [0.1mm,
0.5mm]。
7. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 6, feature exist
In: the d=0.25mm.
8. the U-shaped kirsite optical fiber mode group thin-wall part structure of cast die of dual channel according to claim 1, feature exist
In: the cross section of the cross gate is trapezoidal setting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076315A (en) * | 2019-05-26 | 2019-08-02 | 深圳市宝田精工塑胶模具有限公司 | Runner structure and zinc alloy forming die |
| CN112222374A (en) * | 2020-10-25 | 2021-01-15 | 沈阳工业大学 | Pouring system of semi-solid rheological die-casting truck post-processing bracket |
-
2018
- 2018-05-15 CN CN201820717388.0U patent/CN208895156U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110076315A (en) * | 2019-05-26 | 2019-08-02 | 深圳市宝田精工塑胶模具有限公司 | Runner structure and zinc alloy forming die |
| CN112222374A (en) * | 2020-10-25 | 2021-01-15 | 沈阳工业大学 | Pouring system of semi-solid rheological die-casting truck post-processing bracket |
| CN112222374B (en) * | 2020-10-25 | 2022-02-22 | 沈阳工业大学 | Pouring system of semi-solid rheological die-casting truck post-processing bracket |
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