CN208960972U - A kind of flow guiding structure for vertical extrusion casting mold - Google Patents
A kind of flow guiding structure for vertical extrusion casting mold Download PDFInfo
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- CN208960972U CN208960972U CN201821501203.9U CN201821501203U CN208960972U CN 208960972 U CN208960972 U CN 208960972U CN 201821501203 U CN201821501203 U CN 201821501203U CN 208960972 U CN208960972 U CN 208960972U
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- wall thickness
- boss
- flow guiding
- guiding structure
- vertical extrusion
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Abstract
The utility model discloses a kind of flow guiding structure for vertical extrusion casting mold, including upper die and lower die, lower die is equipped with running channel, and upper mold is equipped with boss in the top position of running channel, and boss is equipped with drainage trough.This is used for the flow guiding structure of vertical extrusion casting mold, liquid metal is filled from the bottom up along running channel, the top of running channel is ingate, liquid metal enters type chamber and filled-type chamber through ingate, and drainage trough is set to the front of the slower part of filling speed, under the drainage of drainage trough, liquid metal preferentially flows to the slower part of filling speed, guarantee that each section filling speed is uniform, prevent cold shut defect, this utility model is used for casting mould field.
Description
Technical field
The utility model relates to casting mould fields, more particularly to a kind of drainage knot for vertical extrusion casting mold
Structure.
Background technique
Extrusion casint be it is a kind of liquid or semi-solid-state metal are poured into metal mold, then high-pressure, is allowed in pressure
Lower coagulation forming is to obtain the process of blank or part.In general, the running channel of vertical extrusion casting is cylinder, liquid gold
Belong to from bottom to top slowly, Stable Filling is, which means that molten aluminum is in such a way that ingate enters type chamber in vertical extrusion casting
Fixed, no image of Buddha horizontal type extruding casting controls molten aluminum flow direction by changing running channel and ingate shape and size like that subtract
Few defect can only improve product quality by adjusting extrusion casint parameter, such as poring rate, pressure, temperature parameter.Some
For part by structure and influence of wall thickness, there is speed and direction inconsistent situation during packed type chamber in metal liquid stream, low
Blocking of the fast liquid stream by high speed liquid flow, looping, the filling of low speed liquid stream are obstructed, and often will cause the cold shut defect of product.Cold shut lacks
Falling into is metal liquid stream meet in finger-type chamber, and metal liquid stream merges the not perfect gap for causing casting generation to penetrate or do not penetrate.
Cold shut defect has development trend under external force, be easy to cause crackle, reduces casting strength.Eliminating this defect must pass through
The rational design of mold.
Utility model content
The purpose of this utility model is to provide a kind of flow guiding structures for vertical extrusion casting mold, can eliminate vertical
Cold shut defect in extrusion casint.
Technical solution adopted in the utility model is:
A kind of flow guiding structure for vertical extrusion casting mold, including upper die and lower die, lower die are equipped with running channel, upper mold
It is equipped with boss in the top position of running channel, boss is equipped with drainage trough.
It is further used as the improvement of technical solutions of the utility model, shape forming cavity between upper die and lower die, by liquid metal
It is cast to type chamber and forms casting, set on casting there are two big wall thickness, be equipped with small wall thickness, big wall thickness between two big wall thickness
The wall thickness at place is greater than the wall thickness at small wall thickness, and drainage trough is extended to the front of small wall thickness by boss center.
It is further used as the improvement of technical solutions of the utility model, the wall thickness of the height of boss and casting in running channel vicinity
It is equal.
It is further used as the improvement of technical solutions of the utility model, further includes drainage column, boss is set on drainage column, upper mold
Mounting hole equipped with the fixed drainage column of installation.
It is further used as the improvement of technical solutions of the utility model, the top for draining column is equipped with chamfered edge card used for positioning
Head.
It is further used as the improvement of technical solutions of the utility model, the depth of drainage trough is added from the center of boss to edge
Deep, the width of drainage trough is narrowed from the center of boss to edge.
It is further used as the improvement of technical solutions of the utility model, the shape of boss is rotary table.
It is further used as the improvement of technical solutions of the utility model, big wall thickness is reinforcing rib.
The utility model has the beneficial effects that this is used for the flow guiding structure of vertical extrusion casting mold, liquid metal is along running channel
It fills from the bottom up, the top of running channel is ingate, and liquid metal enters type chamber and filled-type chamber through ingate, and drainage trough is set to
The front of the slower part of filling speed, under the drainage of drainage trough, it is slower that liquid metal preferentially flows to filling speed
Part guarantees that each section filling speed is uniform, prevents cold shut defect.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the front view of the utility model embodiment；
Fig. 2 is the structural schematic diagram of the utility model embodiment casting；
Fig. 3 is the top view of the utility model embodiment；
Fig. 4 is the three dimensional structure diagram of the utility model embodiment drainage column, boss and drainage trough；
Fig. 5 is the structural schematic diagram of the utility model embodiment drainage trough.
Specific embodiment
Referring to Fig.1~Fig. 5, the utility model are a kind of flow guiding structure for vertical extrusion casting mold, including upper mold 1
With lower die 2, lower die 2 is equipped with running channel 21, and upper mold 1 is equipped with boss 31 in the top position of running channel 21, and boss 31 is equipped with drainage
Slot 32.
This is used for the flow guiding structure of vertical extrusion casting mold, and liquid metal is filled from the bottom up along running channel 21, running channel 21
Top be ingate, liquid metal enters type chamber 4 and filled-type chamber 4 through ingate, and it is slower that drainage trough 32 is set to filling speed
Part front, under the drainage of drainage trough 32, liquid metal preferentially flows to the slower part of filling speed, guarantees each
It is uniform to be partially filled with speed, prevents cold shut defect.
This turbulence structure is located at the mold in 5 middle position of casting mainly for vertical extrusion casting mold, ingate.
As the utility model preferred embodiment, shape forming cavity 4, liquid metal is cast between upper mold 1 and lower die 2
Casting 5 is formed to type chamber 4, is set on casting 5 there are two big wall thickness 51, equipped with small wall thickness 52 between two big wall thickness 51,
Wall thickness at big wall thickness 51 is greater than the wall thickness at small wall thickness 52, and drainage trough 32 extends to small wall thickness 52 by 31 center of boss
Front.In general, the rib thickness general goal in casting 5 is big wall thickness 51, in traditional extrusion casint, due to big wall thickness
Wall thickness at portion 51 is larger, and the resistance that liquid metal enters at this is small, and liquid metal preferentially flows into the position of big wall thickness 51, so
After flow back, formed and converged at small wall thickness 52, hinder the filling of subsequent liquid metal, gas can not be discharged, liquid gold
The junction fusion of category is poor, to form cold shut defect.And after increasing boss 31 and drainage trough 32, such as arrow institute in Fig. 3
Show, under the guiding function of drainage trough 32, the flow direction of liquid metal changes, the position of small wall thickness 52 is preferentially flowed into, from
And the filling speed at small wall thickness 52 is increased, make filling speed of the liquid metal at small wall thickness 52 and big wall thickness 51
Degree is not much different, liquid metal Stable Filling, is uniformly spread outward by center, avoids and converge at small wall thickness 52, thus
Prevent cold shut defect.
As the utility model preferred embodiment, wall thickness b of the height of boss 31 with casting 5 in 21 vicinity of running channel
It is equal.
It further include drainage column 33 as the utility model preferred embodiment, boss 31 is set on drainage column 33, upper mold
1 is equipped with the mounting hole of the fixed drainage column 33 of installation.Drainage column 33 can be made into mold insert and be embedded in upper mold 1, and the shape of welding can also be used
Formula is fixed on upper mold 1.
As the utility model preferred embodiment, the top for draining column 33 is equipped with chamfered edge clamp 34 used for positioning,
Radius of the radius of chamfered edge clamp 34 slightly larger than drainage column 33, positioning region 341 of the chamfered edge clamp 34 equipped with chamfered edge.Due to drainage
The direction of slot 32 is directed toward at small wall thickness 52, and chamfered edge clamp 34 is conducive to drain the quick location and installation of column 33, prevents drainage trough
32 be directed away from small wall thickness 52, causes drainage effect undesirable.
As the utility model preferred embodiment, the depth of drainage trough 32 is added from the center of boss 31 to edge
Deep, the width of drainage trough 32 is narrowed from the center of boss 31 to edge.The depth and width of drainage trough 32 are from center to edge
Gradually transition is conducive to more stable ground transition when liquid metal flows to small wall thickness 52.
As the utility model preferred embodiment, the shape of boss 31 is rotary table, and boss 31 is straight from the top to the bottom
Diameter is gradually reduced.
As the utility model preferred embodiment, big wall thickness 51 is reinforcing rib.
The quantity of drainage trough 32 can be configured according to the quantity of big wall thickness 51 and small wall thickness 52 in this flow guiding structure.
Certainly, the utility model creation is not limited to above embodiment, and those skilled in the art are not disobeying
Equivalent modifications or replacement can be also made under the premise of back the spirit of the present invention, these equivalent variation or replacement are all contained in this
Apply in claim limited range.
Claims (8)
1. a kind of flow guiding structure for vertical extrusion casting mold, it is characterised in that: described including upper mold (1) and lower die (2)
Lower die (2) is equipped with running channel (21), and the upper mold (1) is equipped with boss (31) in the top position of running channel (21), the boss
(31) drainage trough (32) are equipped with.
2. the flow guiding structure according to claim 1 for vertical extrusion casting mold, it is characterised in that: the upper mold
(1) liquid metal is cast to the type chamber (4) and forms casting (5) by the shape forming cavity (4) between lower die (2), the casting
(5) there are two setting on big wall thickness (51), small wall thickness (52) are equipped between the two big wall thickness (51), the big wall thickness
(51) wall thickness at is greater than the wall thickness at small wall thickness (52), and the drainage trough (32) extends to small wall thickness by boss (31) center
The front in portion (52).
3. the flow guiding structure according to claim 2 for vertical extrusion casting mold, it is characterised in that: the boss
(31) wall thickness of the height with casting (5) in running channel (21) vicinity is equal.
4. the flow guiding structure according to claim 1 for vertical extrusion casting mold, it is characterised in that: further include drainage
Column (33), the boss (31) are set in drainage column (33), and the upper mold (1) is equipped with the installation of fixed drainage column (33) of installation
Hole.
5. the flow guiding structure according to claim 4 for vertical extrusion casting mold, it is characterised in that: the drainage column
(33) top is equipped with chamfered edge clamp (34) used for positioning.
6. the flow guiding structure according to claim 1 for vertical extrusion casting mold, it is characterised in that: the drainage trough
(32) depth is deepened from the center of boss (31) to edge, the width of the drainage trough (32) from the center of boss (31) to
Edge narrows.
7. the flow guiding structure according to claim 1 for vertical extrusion casting mold, it is characterised in that: the boss
(31) shape is rotary table.
8. the flow guiding structure according to claim 2 for vertical extrusion casting mold, it is characterised in that: the big wall thickness
Portion (51) is reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501203.9U CN208960972U (en) | 2018-09-13 | 2018-09-13 | A kind of flow guiding structure for vertical extrusion casting mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821501203.9U CN208960972U (en) | 2018-09-13 | 2018-09-13 | A kind of flow guiding structure for vertical extrusion casting mold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208960972U true CN208960972U (en) | 2019-06-11 |
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ID=66755471
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821501203.9U Active CN208960972U (en) | 2018-09-13 | 2018-09-13 | A kind of flow guiding structure for vertical extrusion casting mold |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047716A (en) * | 2018-09-13 | 2018-12-21 | 广州金邦液态模锻技术有限公司 | A kind of flow guiding structure for vertical extrusion casting mold |
-
2018
- 2018-09-13 CN CN201821501203.9U patent/CN208960972U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109047716A (en) * | 2018-09-13 | 2018-12-21 | 广州金邦液态模锻技术有限公司 | A kind of flow guiding structure for vertical extrusion casting mold |
| CN109047716B (en) * | 2018-09-13 | 2024-06-25 | 广州金邦液态模锻技术有限公司 | Drainage structure for vertical extrusion casting mold |
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