CN201537633U - Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die - Google Patents
Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die Download PDFInfo
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- CN201537633U CN201537633U CN2009202787374U CN200920278737U CN201537633U CN 201537633 U CN201537633 U CN 201537633U CN 2009202787374 U CN2009202787374 U CN 2009202787374U CN 200920278737 U CN200920278737 U CN 200920278737U CN 201537633 U CN201537633 U CN 201537633U
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Abstract
The present utility model relates to a subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die comprising an upper die and a lower die. The upper die comprises two die cores that are identical and bilateral symmetry, the center of the upper die has a center stream-splitting hole, the front, back, light and right parts together have 6 stream-splitting holes, the center stream-splitting hole is bigger than the stream-splitting holes at the right and left parts with an area ratio from 1.1 to 1.3, the stream-splitting holes are connected through stream-splitting bridges, the lower die has a concave welding chamber wherein two die cavities that are bilateral symmetry are positioned, the die cavities have super-short calibrating straps, the upper die and the lower die are cooperated with each other by an oblique sealing mode, and the core of the upper die adopts a substitution type physical design, the welding chamber adopts a variable-angle contour line design. The die of the present utility model can be applied in large-scale extruding machines to make metal flow speed uniform, die strength and surface quality of sectional materials improved, for achieving effects of energy-saving and yield-increasing.
Description
Technical field
The utility model relates to a kind of mould, is specifically related to the rigid suspended power supply bus-bar of a kind of underground engines extruding die for aluminum shaped material, belongs to the mold machining technology field.
Background technology
China is since 20th century, began to build subway and light rail the seventies, and the electric power system of Beijing, Tianjin Underground adopts three rails, and the electric power system of line of Shanghai Underground, No. two lines adopts the simple flexible suspension contact net of band elastic base.But after the mid-80, countries such as the U.S., Japan, France, Spain, Korea S all adopt the overhead rigid suspension contact net that rail transit trains such as subway light rail are powered one after another, and the overhead rigid suspension contact net has broad application prospects in urban track traffic.All parts and material in the rigid suspended net of import are import, and operational effect is good, but involves great expense.Ministries and commissions such as China Ministry of Railways propose to adopt production domesticization overhead rigid suspension contact net that underground engines is powered.The power supply bus-bar is a critical piece in the overhead rigid suspension contact net, and its production domesticization research is the centre point of whole overhead rigid suspension system production domesticization research.
The rigid suspended power supply bus-bar of underground engines aluminium section bar belongs to semi-hollow section bar class, according to conventional mould design theory, designing a flat-die produces, but because cantilever is very long, tongue is than surpassing 20, and extruding force directly acts on the surface of cantilever through aluminium bar during extruding, makes it be axial bending in the longitudinal direction, above the cantilever root, be subjected to tension, the below compression chord.When cantilever was strain, the opposite side wall thickness of support edge will reduce, and its reduction changes along with the variation of extruding force, made the wall thickness of section bar be difficult to control.When extruding force was big, plastic deformation can appear in cantilever, can not recover, even make the root generation fracture of cantilever cause mould to be scrapped.
The utility model content
In view of this, the utility model purpose is to overcome above-mentioned deficiency, provides a kind of metal flow equilibrium, mould strength and section bar surface quality of making to improve, and reaches effect energy-conservation and raising output.
For reaching above-mentioned purpose, the technical scheme that the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material adopts is: the rigid suspended power supply bus-bar of a kind of underground engines extruding die for aluminum shaped material, include upper die and lower die, described patrix comprises two identical and symmetrical core rods, the patrix center is provided with a center tap hole, front and back, about be provided with 6 tap holes altogether, the center tap hole is greater than the left side of the right and left, part discharge orifice on the right side, area ratio is 1.1～1.3, connect by the shunting bridging between each tap hole, counterdie is concaved with a seam chamber, and seam is indoor to be provided with two symmetrical die cavities, and die cavity is provided with ultrashort calibrating strap;
Cooperate with oblique seal type between the described upper die and lower die, the core rod of patrix cooperates the position to cooperate the position with 30～60 ° of cooperations with the nib of counterdie, and fit clearance is 0.2～0.7mm;
Described patrix core rod adopts and substitutes the formula structural design, makes the cantilever of patrix core rod replacement counterdie, and at the root place of former cantilever core rod and counterdie die cavity is worked in coordination, and forms half complete hollow cantilever design;
The design of angle outline line is adopted in described seam chamber, and sidewall slope becomes 30～60 ° before and after the seam chamber, and left and right sides sidewall is 90 ° of right angles, avoids the formation and the metal choked flow in metal dead band, reduces the crimp drag;
Center, described seam chamber is provided with the choked flow platform near the die cavity position;
The height of described ultrashort calibrating strap is 2～8mm;
Described shunting bridge cross section is a water droplet shape.
Compare with the existing mold technology, the beneficial effects of the utility model are:
1, the tap hole area of patrix both sides is more smaller than center tap hole, is provided with the choked flow platform in the center simultaneously, has both guaranteed the equilibrium of metal flow, has guaranteed the surface quality of section bar again.
2, the nib of counterdie cooperates the position to cooperate the position with 30～60 ° of cooperations with the core rod of patrix, and fit clearance is 0.2～0.7mm, has guaranteed the intensity of core rod, has improved the quality of section bar.
3, conventional calibrating strap length is 7～15mm, and the metal friction resistance is very big, and difficult forming adopts ultrashort calibrating strap design to reduce the friction that extruding produces, and has reduced extruding force.
4, adopt the design in a mould two chambeies to improve production efficiency, saved cost.
5, the utility model is used on large-size extruder, and flow rate of metal equilibrium, mould strength and section bar surface quality are improved, and reaches effect energy-conservation, volume increase.
Description of drawings
Fig. 1: be the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material installation diagram;
Fig. 2: be the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material upper die and lower die cooperation position A place partial enlarged drawing;
Fig. 3: for the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material primary structure is formed;
Fig. 4: the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material counterdie plane structure chart;
Fig. 5: the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material counterdie A-A cutaway view.
[figure number explanation]
1 patrix, 2 counterdies
3 patrix core rods, 4 intermediate section discharge orifices
Tap hole 52 back tap holes before 51
53 part discharge orifice 54 on the left side parts discharge orifice on the right side
6 intermediate distributary bridges, 7 both sides shunting bridge
Seam chambers 89 choked flow platforms
Skew wall before and after the 10 die cavities seam chambers 11
14 counterdie nibs cooperate position 15 calibrating straps
The A cooperation position
The specific embodiment
Characteristics of the present utility model can be consulted the detailed description of the graphic and embodiment of this case and obtained to be well understood to.
Referring to Fig. 1～shown in Figure 3, the rigid suspended power supply bus-bar of the utility model underground engines extruding die for aluminum shaped material, combine by patrix 1 and counterdie 2, counterdie 2 places the below of patrix 1, patrix 1 comprises two identical and symmetrical core rods 3, and core rod is taked to substitute the formula structural design, makes patrix core rod 3 replace the cantilever of counterdie 2, and core rod 3 and counterdie 2 die cavities are worked in coordination, form half complete hollow cantilever design.Patrix 1 center is provided with a center tap hole 4, and the both sides, all around are provided with 6 tap holes altogether, be respectively: tap hole 52 and part discharge orifice 53 on the left side and part discharge orifice 54 on the right side behind two the preceding tap holes 51, two, center tap hole 4 is greater than left and right tap hole, and area ratio is 1.1～1.3; Connect by the shunting bridging between each tap hole, specifically, be connected by intermediate distributary bridge 6 between forward and backward tap hole and the center tap hole, shunt bridge 7 by both sides between forward and backward tap hole and the left and right tap hole and be connected, each shunts the bridge cross section is water droplet shape.
Referring to Fig. 4, shown in Figure 5, counterdie 2 places the below of patrix 1, corresponding to the tap hole on the patrix 1, counterdie is concaved with a seam chamber 8, the design of angle outline line is adopted in the seam chamber, the front and back sidewall slope of seam chamber 8 becomes 30 °～60 ° to form skew wall 11 before and after the seam chamber, the left and right sides sidewall of seam chamber 8 does not tilt, become 90 ° right angle, form straight wall 12 about the seam chamber, adopting this oblique angle purpose of design is in order to increase forward and backward tap hole 51,52 metal flow, reduce the dead band in the seam chamber 8, reduce the crimp drag.Two identical die cavities 10 of left-right symmetry distribution on the described counterdie seam chamber 8, section bar has realized that one goes out two productions, there is choked flow platform 9 at 8 centers, seam chamber near die cavity 10 positions, have reduced the flow rate of metal of this position, have reached the effect of further equilibrium velocity.Counterdie die cavity die cavity is provided with calibrating strap 15, and calibrating strap has been realized ultrashort design, and the calibrating strap height is 2～8mm, mainly controls the flowing velocity of metal with the size of tap hole, has been auxilliary based on tap hole control flow velocity, calibrating strap 15 both.Avoided because the error that mould is produced when processing calibrating strap 15 causes that thereby metal flow is inhomogeneous to make that in the extrusion process the inconsistent phenomenon of speed appears in two section bars, short simultaneously calibrating strap design also can reduce extruding force.
Referring to Fig. 2, it is upper mould and counterdie cooperation position A place partial enlarged drawing, and described counterdie nib cooperates position 14 to cooperate 13 with the patrix core rod with 30～60 ° of cooperations, fit clearance is 0.2～0.7mm, guarantee the intensity of core rod, reduced and leaked material, improved the quality of section bar.
In sum, the utility model provides the rigid suspended power supply bus-bar of a kind of underground engines extruding die for aluminum shaped material, so offer the application of novel patent in accordance with the law; Technology contents of the present utility model and technical characterstic disclose as above, yet the personage who is familiar with this technology still may do various replacement and the modifications that do not deviate from this case utility model spirit based on announcement of the present utility model.Therefore, protection domain of the present utility model should be not limited to those disclosed embodiments, and should comprise various do not deviate from replacement of the present utility model and modifications, and is contained by following claim.
Claims (7)
1. the rigid suspended power supply bus-bar of a underground engines extruding die for aluminum shaped material includes upper die and lower die, it is characterized in that:
Described patrix comprises two identical and symmetrical core rods, the patrix center is provided with a center tap hole, the all around is provided with 6 tap holes altogether, connect by the shunting bridging between each tap hole, counterdie is concaved with a seam chamber, seam is indoor to be provided with two symmetrical die cavities, and die cavity is provided with ultrashort calibrating strap.
2. the rigid suspended power supply bus-bar of underground engines as claimed in claim 1 extruding die for aluminum shaped material, it is characterized in that: cooperate with oblique seal type between the described upper die and lower die, the core rod of patrix cooperates the position to cooperate the position with 30～60 ° of cooperations with the nib of counterdie, and fit clearance is 0.2～0.7mm.
3. the rigid suspended power supply bus-bar of underground engines as claimed in claim 2 extruding die for aluminum shaped material is characterized in that: described center tap hole is greater than the left and right tap hole of the right and left, and area ratio is 1.1～1.3.
4. the rigid suspended power supply bus-bar of underground engines as claimed in claim 3 extruding die for aluminum shaped material, it is characterized in that: described patrix core rod adopts and substitutes the formula structural design, make the patrix core rod replace the cantilever of counterdie, and core rod and counterdie die cavity are worked in coordination at the root place of former cantilever, form half complete hollow cantilever design.
5. the rigid suspended power supply bus-bar of underground engines as claimed in claim 4 extruding die for aluminum shaped material, it is characterized in that: the design of angle outline line is adopted in described seam chamber, sidewall slope becomes 30～60 ° before and after the seam chamber, left and right sides sidewall is 90 ° of right angles, avoid the formation and the metal choked flow in metal dead band, reduce the crimp drag.
6. the rigid suspended power supply bus-bar of underground engines as claimed in claim 5 extruding die for aluminum shaped material is characterized in that: center, described seam chamber is provided with the choked flow platform near the die cavity position.
7. the rigid suspended power supply bus-bar of underground engines as claimed in claim 6 extruding die for aluminum shaped material, it is characterized in that: the height of described ultrashort calibrating strap is 2～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202787374U CN201537633U (en) | 2009-11-09 | 2009-11-09 | Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202787374U CN201537633U (en) | 2009-11-09 | 2009-11-09 | Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die |
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| Publication Number | Publication Date |
|---|---|
| CN201537633U true CN201537633U (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202787374U Expired - Lifetime CN201537633U (en) | 2009-11-09 | 2009-11-09 | Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die |
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| CN (1) | CN201537633U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990007A (en) * | 2012-12-21 | 2013-03-27 | 西南铝业（集团）有限责任公司 | Inclined lap joint mould for cantilever sectional material |
| CN104148431A (en) * | 2014-06-30 | 2014-11-19 | 大连康丰科技有限公司 | Continuous extrusion device for extruding copper alloy |
| CN104384224A (en) * | 2014-11-25 | 2015-03-04 | 昆山国展金属工业有限公司 | Circular sunflower-type cooling fin aluminum extrusion mold |
| CN105170680A (en) * | 2015-09-08 | 2015-12-23 | 广州科技职业技术学院 | Protective type double-hole extrusion mould for aluminum section bar |
| CN105170682A (en) * | 2015-10-20 | 2015-12-23 | 江阴市江顺模具有限公司 | Different-profile mould in one mould |
| CN105817491A (en) * | 2016-05-24 | 2016-08-03 | 江阴盛通铝业有限公司 | One-outlet and two-avoidance welding line aluminum profile extrusion mold |
| CN113210454A (en) * | 2021-06-10 | 2021-08-06 | 鼎镁新材料科技股份有限公司 | Metal extrusion die of multicavity thin-walled profile |
| CN114160598A (en) * | 2021-12-27 | 2022-03-11 | 广东兴发铝业（江西）有限公司 | Extrusion die split-flow die structure and preparation method thereof |
-
2009
- 2009-11-09 CN CN2009202787374U patent/CN201537633U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102990007A (en) * | 2012-12-21 | 2013-03-27 | 西南铝业（集团）有限责任公司 | Inclined lap joint mould for cantilever sectional material |
| CN104148431A (en) * | 2014-06-30 | 2014-11-19 | 大连康丰科技有限公司 | Continuous extrusion device for extruding copper alloy |
| CN104384224A (en) * | 2014-11-25 | 2015-03-04 | 昆山国展金属工业有限公司 | Circular sunflower-type cooling fin aluminum extrusion mold |
| CN105170680A (en) * | 2015-09-08 | 2015-12-23 | 广州科技职业技术学院 | Protective type double-hole extrusion mould for aluminum section bar |
| CN105170682A (en) * | 2015-10-20 | 2015-12-23 | 江阴市江顺模具有限公司 | Different-profile mould in one mould |
| CN105817491A (en) * | 2016-05-24 | 2016-08-03 | 江阴盛通铝业有限公司 | One-outlet and two-avoidance welding line aluminum profile extrusion mold |
| CN113210454A (en) * | 2021-06-10 | 2021-08-06 | 鼎镁新材料科技股份有限公司 | Metal extrusion die of multicavity thin-walled profile |
| CN114160598A (en) * | 2021-12-27 | 2022-03-11 | 广东兴发铝业（江西）有限公司 | Extrusion die split-flow die structure and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Guangdong Xingfa Aluminium (Jiangxi) Co., Ltd. Assignor: Guangdong Xingfa Aluminium Co., Ltd. Contract record no.: 2013990000468 Denomination of utility model: Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die Granted publication date: 20100804 License type: Exclusive License Record date: 20130805 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Guangdong Xingfa Aluminium (Jiangxi) Co., Ltd. Assignor: Guangdong Xingfa Aluminium Co., Ltd. Contract record no.: 2013990000468 Date of cancellation: 20141024 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Subway locomotive rigid suspension power supply bus-bar aluminium section extrusion die Effective date of registration: 20151015 Granted publication date: 20100804 Pledgee: Bank of Communications Ltd Yichun branch Pledgor: Guangdong Xingfa Aluminium Co., Ltd. Registration number: 2015990000867 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |