CN204135100U - Thin cylinder cylinder extrusion die - Google Patents
Thin cylinder cylinder extrusion die Download PDFInfo
- Publication number
- CN204135100U CN204135100U CN201420649807.3U CN201420649807U CN204135100U CN 204135100 U CN204135100 U CN 204135100U CN 201420649807 U CN201420649807 U CN 201420649807U CN 204135100 U CN204135100 U CN 204135100U
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- deflector
- patrix
- pod apertures
- extrusion die
- metal
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Abstract
The utility model discloses a kind of thin cylinder cylinder mould, comprise deflector, upper die and lower die, deflector, upper die and lower die superpose successively and are assembled into one; Deflector is provided with multiple pod apertures, and patrix is provided with multiple tap hole, the quantity of tap hole be the N of pod apertures quantity doubly, N is positive integer and N >=2, and every two or more tap hole is corresponding with pod apertures is communicated with.Utilize deflector to shunt, make metal through a predeformation and predistribution, by multiple the same pod apertures by metal uniform distribution, split ratio is large, and extruding force will decline, and reduce the stressed of mould, strengthens the intensity of mould; Metal enters after patrix through deflector and is assigned with, enters lower mold forming by multiple tap hole, and the width between multiple tap hole is narrower, and metal forming flow velocity is reached unanimity; The spoiler arranged in bonding container further prevents flow rate of metal too fast, makes flow rate of metal more even, avoids section bar to produce oval phenomenon.
Description
Technical field
The utility model relates to a kind of mould, particularly thin cylinder cylinder extrusion die.
Background technology
There is due to aluminium alloy the advantageous properties such as good corrosion resistance, light weight and weldability and be used widely, as aluminium alloy extrusions replaces steel aerogenesis in next life cylinder barrel gradually, thin cylinder cylinder is a kind of a kind of element conventional in pneumatic system, Fig. 8 is the sectional view of the slim cylinder barrel of aluminium alloy, as shown in the figure, the cross section of the slim cylinder barrel of aluminium alloy is square, and its center has macropore 41, and corner has aperture 42.
But, in the slim cylinder barrel extrusion process of production of aluminium alloy, usually because the reason of mould, easily make the macropore 41 of the slim cylinder barrel of aluminium alloy and aperture 42 occur oval situation, or occur inner eccentric holes phenomenon, i.e. the even phenomenon of wall unevenness.Traditional extrusion die, what adopt is the combination of upper die and lower die, in extrusion process, the metal deformation resistance that the extruding dead band of mold center produces and metal friction power excessive, mould is when bearing high temperature, high pressure, high frictional resistance, serious distortion can occur, and bridge splits to cause mould to occur, mould strength is low.In order to ensure mould strength, the thickness of patrix must obtain more than more than 130 millimeters, but this brings very large difficulty to processing, have a lot of position and occur that processing is not in place, have some setbacks or situation that transition is not round and smooth, will produce stress like this to concentrate in heat treatment process, mould is stressed excessive, causes the reduction of mould strength.Meanwhile, the shunting bridge width of mould is wider, and metal supply resistance can increase, and metal forming flow velocity is inconsistent, easily causes section bar hole to occur oval phenomenon, processes also complicated simultaneously.
Utility model content
Based on this, be necessary the problem that extruding force is excessive, flow rate of metal is inconsistent for thin cylinder cylinder extrusion die, provide a kind of and reduce extruding force, thin cylinder cylinder extrusion die that flow rate of metal reaches unanimity.
A kind of thin cylinder cylinder extrusion die, comprise upper die and lower die, described thin cylinder cylinder extrusion die also comprises deflector, and described deflector, upper die and lower die superpose successively and are assembled into one; Described deflector is provided with multiple pod apertures, described patrix is provided with multiple tap hole, the quantity of described tap hole be the N of described pod apertures quantity doubly, N is positive integer and N >=2, and each pod apertures of described deflector is corresponding with two or more tap hole every of described patrix is respectively communicated with; The bonding container that described counterdie is provided with close described patrix and the discharge opening be communicated with described bonding container, described bonding container is provided with spoiler on the bottom surface of described discharge opening.
Wherein in an embodiment, the quantity of described pod apertures is 4, and the quantity of described tap hole is 8, and each pod apertures is corresponding with every two tap holes to be communicated with.
Wherein in an embodiment, described spoiler is arranged on the larger position of the forming area area of the corresponding described thin cylinder cylinder extrusion die in described bonding container bottom surface, described spoiler is polylith, is all arranged on the edge that described bonding container and described discharge opening have a common boundary.
Wherein in an embodiment, one end that described deflector and described patrix are fixed is provided with stress gap.
Wherein in an embodiment, form water conservancy diversion bridge between the pod apertures of described deflector, the entrance of the water conservancy diversion bridge of described deflector adopts chamfer design with outlet.
Wherein in an embodiment, described pod apertures and described tap hole form with the axis of mould respectively 90 spread angle.
Wherein in an embodiment, described patrix is provided with big mould core near one end of described counterdie, described patrix also comprises small mould core, form shunting bridge between described patrix tap hole, described shunting bridge comprise to put with described water conservancy diversion bridge location corresponding first shunt bridge and with described pod apertures position corresponding second shunt bridge; Described second shunting bridge offers inlaid hole, and described small mould core stretches into described inlaid hole away from one end of described counterdie makes described small mould core coordinate with described patrix, thus makes that described small mould core is dismountable to be fixed on described patrix.
Wherein in an embodiment, described counterdie is also provided with puts corresponding support pier with described shunting bridge location.
Wherein in an embodiment, described big mould core and described small mould core all stretch into the discharge opening of described counterdie through described bonding container near one end of described counterdie, described big mould core and described small mould core and described discharge opening coordinate near the part of described bonding container and are formed into nibs, and the cross sectional shape of described forming hole is corresponding with the cross sectional shape of thin cylinder cylinder to be processed.
Wherein in an embodiment, described big mould core offers fabrication hole, and described fabrication hole is communicated with described discharge opening.
Use above-mentioned mould, metal is divided into multiply metal through multiple pod apertures predeformation of deflector, to be liquefied by metal body uniform distribution by pod apertures.And two or more tap hole of patrix is communicated with 1 pod apertures of deflector, metal enters the more tap hole of patrix after being shunted by pod apertures, therefore, narrowed width between tap hole, the flow rate of metal at each position of section bar is easily reached unanimity, and reduces the seam power of metal when entering counterdie, thus reduce the pressure of whole mould, spoiler further defines the speed that metal flows into counterdie, and flow rate of metal is reached unanimity.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the preferred embodiment of the utility model thin cylinder cylinder extrusion die;
Fig. 2 is the top view of deflector in Fig. 1;
Fig. 3 is the profile of B-B in Fig. 2;
Fig. 4 is the profile of A-A in Fig. 2;
Fig. 5 is the top view of patrix in Fig. 1;
Fig. 6 is the profile of C-C in Fig. 5;
Fig. 7 is the top view of counterdie in Fig. 1;
Fig. 8 is the sectional view of thin cylinder cartridge type material.
Detailed description of the invention
In order to make of the present utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, a kind of thin cylinder cylinder extrusion die 100 comprises deflector 10, patrix 20 and counterdie 30, and deflector 10, patrix 20 and counterdie 30 superpose successively and be assembled into one.Particularly, patrix 20 and deflector 10 are provided with the corresponding installing hole in position, by pin, deflector 10 is fixed on patrix 20, patrix 20 and counterdie 30 are provided with the corresponding installing hole in position, by pin, patrix 20 and deflector 10 are fixed on counterdie 30, make them form an entirety, increase the intensity of thin cylinder cylinder extrusion die 100.
Refer to Fig. 2, deflector 10 is provided with multiple pod apertures 11, forms water conservancy diversion bridge 12 between the pod apertures 11 of deflector 10.Refer to Fig. 5, patrix 20 is provided with multiple tap hole 21, the quantity of tap hole 21 is N times of pod apertures 11 quantity, N is positive integer and N >=2, when being fixed on patrix 20 by deflector 10, each pod apertures 11 of deflector 10 is corresponding with two or more tap hole 21 every of patrix 20 to be respectively communicated with.The bonding container 31 counterdie 30 offering close patrix 20 and the discharge opening 33 be communicated with bonding container 31, refer to Fig. 7, bonding container 31 is provided with spoiler 36 on the bottom surface of discharge opening 33.
In the present embodiment, pod apertures 11 quantity on deflector 10 is 4, and N value is 2, then tap hole 21 quantity of patrix 20 is 8, and when being fixed on patrix 20 by deflector 10, each pod apertures 11 is corresponding with every two tap holes 21 to be respectively communicated with.
By utilizing the shunting of deflector 10, make metal through a predeformation and predistribution, metal is divided into multiply metal, by tap hole 21 by metal liquid uniform distribution through multiple pod apertures 11 predeformation of deflector 10.And the metal that 1 pod apertures 11 that in patrix 20, two or more tap hole 21 contacts with the corresponding deflector 10 be communicated with enters, therefore, the extruding force of metal will decline, reduce the stressed of mould, tap hole 21 is more, width between tap hole 21 is diminished, and the flow velocity making metal enter counterdie 30 from tap hole 21 reaches unanimity.
Hindering by arranging spoiler 36 pairs of metal liquids on bonding container 31 bottom surface, preventing metal liquid flow velocity too fast, flow rate of metal is reached unanimity.In the present embodiment, spoiler 36 upwards has certain height from bonding container 31 bottom surface, is preferably 8 millimeters.Refer to Fig. 7, spoiler 36 is arranged on the larger position of the corresponding forming area area in bonding container 31 bottom surface, the design of this structure, avoid metal too fast at the region flow velocity that the shaping area of thin cylinder cylinder extrusion die 100 is larger, metal is made to flow into the flow velocity in this region more rationally evenly, make metal can flow into shaping dead angle place smoothly, prevent product from occurring oval phenomenon.Particularly, spoiler 36 is polylith, is all arranged on the edge that bonding container 31 has a common boundary with discharge opening 33.
In the process of capping metal, because metal has higher temperature, this high temperature can make deflector 10 have distortion to a certain degree and produce certain stress, being stressed of the patrix 20 that increase contacts with deflector 10 by this stress, in order to reduce being stressed of patrix 20, one end that deflector 10 is fixed with patrix 20 is provided with stress gap 13, after deflector 10 and patrix 20 assemble, the stress of the distortion of 13 pairs, this stress gap deflector 10 in the process of capping metal and generation has certain buffering, thus can reduce being stressed of patrix 20.In the present embodiment, the width in stress gap 13 is 1.0 millimeters.
Refer to Fig. 3, for reducing the flow resistance of metal, chamfer design is adopted at the entrance and exit place of the pod apertures 11 of deflector 10, this just makes the entrance and exit place of pod apertures 11 form the guide frame of inclination, this guide frame can guarantee the flowing velocity of material, thus reduce the flow resistance of metal, improve product quality.
Refer to Fig. 4, pod apertures 11 and the axis of mould form 9 ° spread angle 14, when metal liquid is by pod apertures 11, the guide frame with angle of inclination ensures liquid flow velocity, can reduce pressure more than 20%, thus alleviate mould bear pressure.Similarly, tap hole 21 and the axis of mould also form 9 ° spread angle.
Refer to Fig. 5, between patrix 20 tap hole 21, form shunting bridge, shunting bridge comprise corresponding with water conservancy diversion bridge 12 position of deflector 10 first shunt bridge 210 and with pod apertures 11 position of deflector 10 corresponding second shunt bridge 220.Traditional moulds shunting bridge width is larger, seam power during metal liquid inflow counterdie 30 is larger, thus whole extruding force is comparatively large, so the metal supply resistance between the macropore 41 of the product of extruding formation and aperture 42 can increase, can cause product that oval phenomenon occurs because of metal supply.In the present embodiment, owing to being provided with more tap hole 21, decreasing the width of shunting bridge, the metal forming flow velocity at each position is easily reached unanimity, avoids the macropore 41 of the section bar produced and aperture 42 to occur oval phenomenon.
Preferably, the width of the first shunting bridge 210 is 14 millimeters.Second shunting bridge 220 size is less than the first shunting bridge 210 size, and on the one hand, the resistance that when can reduce extruding, metal enters, reduces the seam power of metal when entering counterdie 30, thus reduce the pressure of whole mould; On the other hand, the tension of mould can be reduced, delay the fracture of the first shunting bridge 210 and the second shunting bridge 220, thus improved the intensity of mould.
Patrix 20 is provided with big mould core 22 near one end of counterdie 30, patrix 20 also comprises small mould core 23, refer to Fig. 6, second shunting bridge 220 offers inlaid hole 25, small mould core 23 stretches into inlaid hole 25 away from one end of counterdie 30 makes small mould core 23 coordinate with patrix 20, thus makes that small mould core 23 is dismountable to be fixed on patrix 20.The mode that small mould core 23 is detachably fixed with patrix 20 has multiple, and such as, small mould core 23 is the end of thread away from one end of counterdie 30, and inlaid hole 25 has internal thread, is fixed on dismountable for small mould core 23 in inlaid hole 25 by threaded engagement.
In the present embodiment, the quantity of inlaid hole 25 is 4, and the quantity of small mould core 23 and the quantity of inlaid hole 25 correspond to 4.Big mould core 22 and small mould core 23 all stretch into the discharge opening 33 of counterdie 30 through bonding container 31 near one end of counterdie 30, big mould core 22 and small mould core 23 and discharge opening 33 coordinate near the part of bonding container 31 and are formed into nibs 32, and the cross sectional shape of forming hole 32 is corresponding with the cross sectional shape of thin cylinder cylinder to be processed.Metal enters the bonding container 31 of counterdie 30 through the shunting of deflector 10 and patrix 20, and gather through bonding container 31 and reduce circulation diameter to enter forming hole 32 more shaping, the product after shaping is discharged from discharge opening 33.As shown in Figure 8, big mould core 22 corresponds to macropore 41 position in thin cylinder cylinder to the shaping thin cylinder cylinder sectional view obtained, and four small mould cores 23 are corresponding to four aperture 42 positions in thin cylinder cylinder.In order to the excessive velocities stoping metal to flow into counterdie 30 better, traditional mould brings by lengthening the work of counterdie 30 flow velocity hindering metal usually, and work strip is the section being used for ensureing the shape of extruding finished product, size and surface quality in aluminum material extrusion mold perpendicular to mold work end face.Work strip obtains very long, and often beyond 16 millimeters, then the land length of core rod is also thereupon very long, makes product surface quality poor, and adds mold materials.Work strip is longer, more easily causes the macropore 41 of section bar and aperture 42 to occur oval phenomenon.In order to address this problem, in the present embodiment, forming hole 32 land length of counterdie 30 is the longest is chosen as 8 millimeters, avoids the transition of operated adjacent band unexpected, prevents the macropore 41 of section bar and aperture 42 from oval phenomenon occurring.
Because small mould core 23 adopts mosaic mode to be fixed on patrix 20, after small mould core 23 fractures, can change.Thus improve the life-span of mould.On the other hand, after making small mould core 23 into mold insert, big mould core 22 and small mould core 23 can adopt the mode of finish turning to process, and the surface of such big mould core 22 and small mould core 23 can obtain higher precision and surface quality.
The big mould core 22 of patrix 20 offers the fabrication hole 24 that diameter is 24 millimeters, fabrication hole 24 is communicated with discharge opening 33, and the design of fabrication hole 24 can increase the quenching degree during heat treatment of mould, thus improves mechanical performance and the intensity of mould.Be provided with metal guide chute between the big mould core 22 of patrix 20 and small mould core 23, for the bonding container 31 of small mould core 23 correspondence that led by metal liquid, ensure the metal supply at small mould core 23 place.The tap hole 21 of patrix 20 and metal guide chute adopt the machine-tooled method processing of milling, and this can make processing simple and put in place, and metal supply can be guaranteed.
Refer to Fig. 7, counterdie 30 is also provided with puts corresponding support pier 35 with the shunting bridge location of patrix 20, and support pier 35 can be played a supporting role to shunting bridge, thus improves the intensity of shunting bridge, ensures the stability of mould, ensures the intensity of mould, improve die life.And by arranging support pier 35, the span shunting bridge can be reduced, thus improve the intensity of shunting bridge.
For the processing of counterdie 30 forming hole 32, first adopting first finish turning to go out diameter is 106 millimeters of technique nibs, then with this technique nib for datum line cutting processing goes out compacted under hole 32.Which ensure that the concentricity of outside dimension in the thin cylinder cartridge type material produced, substantially increase efficiency simultaneously.
Metal enters bonding container 31 through the shunting of deflector 10 and patrix 20, through bonding container 31 gather reduce circulation diameter enter forming hole 32 again, the product after shaping is discharged from discharge opening 33.When adopting thin cylinder cylinder mould 100 of the present utility model to produce section bar, utilize deflector 10 to shunt, make metal through a predeformation and predistribution, first time is out of shape metal uniform distribution by pod apertures 11, split ratio is large, and extruding force will decline, and reduce the stressed of mould; Metal enters after patrix 20 through deflector 10, the metal of each pod apertures 11 enters forming hole 32 respectively by two or more tap hole 21 again, number ratio pod apertures 11 quantity due to tap hole 21 wants many, make the width between tap hole 21 narrower than the width between pod apertures 11, metal forming flow velocity is reached unanimity.The setting of spoiler 36 prevents flow rate of metal too fast, makes flow rate of metal more even, avoids section bar to produce oval phenomenon.
The above embodiment only have expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. a thin cylinder cylinder extrusion die, comprises upper die and lower die, it is characterized in that, described thin cylinder cylinder extrusion die also comprises deflector, and described deflector, upper die and lower die superpose successively and are assembled into one; Described deflector is provided with multiple pod apertures, described patrix is provided with multiple tap hole, the quantity of described tap hole be the N of described pod apertures quantity doubly, N is positive integer and N >=2, and each pod apertures of described deflector is corresponding with two or more tap hole every of described patrix is respectively communicated with; The bonding container that described counterdie is provided with close described patrix and the discharge opening be communicated with described bonding container, described bonding container is provided with spoiler on the bottom surface of described discharge opening.
2. thin cylinder cylinder extrusion die according to claim 1, is characterized in that, the quantity of described pod apertures is 4, and the quantity of described tap hole is 8, and each pod apertures is corresponding with every two tap holes to be communicated with.
3. thin cylinder cylinder extrusion die according to claim 1, it is characterized in that, described spoiler is arranged on the larger position of the forming area area of the corresponding described thin cylinder cylinder extrusion die in described bonding container bottom surface, described spoiler is polylith, is all arranged on the edge that described bonding container and described discharge opening have a common boundary.
4. thin cylinder cylinder extrusion die according to claim 1, is characterized in that, one end that described deflector and described patrix are fixed is provided with stress gap.
5. thin cylinder cylinder extrusion die according to claim 1, is characterized in that, form water conservancy diversion bridge between the pod apertures of described deflector, and the entrance of the water conservancy diversion bridge of described deflector adopts chamfer design with outlet.
6. thin cylinder cylinder extrusion die according to claim 1, is characterized in that, described pod apertures and described tap hole form with the axis of mould respectively 9 ° spread angle.
7. the thin cylinder cylinder extrusion die according to any one of claim 1 to 6, it is characterized in that, described patrix is provided with big mould core near one end of described counterdie, described patrix also comprises small mould core, form shunting bridge between described patrix tap hole, described shunting bridge comprise to put with described water conservancy diversion bridge location corresponding first shunt bridge and with described pod apertures position corresponding second shunt bridge; Described second shunting bridge offers inlaid hole, and described small mould core stretches into described inlaid hole away from one end of described counterdie makes described small mould core coordinate with described patrix, thus makes that described small mould core is dismountable to be fixed on described patrix.
8. thin cylinder cylinder extrusion die according to claim 7, is characterized in that, described counterdie is also provided with puts corresponding support pier with described shunting bridge location.
9. thin cylinder cylinder extrusion die according to claim 7, it is characterized in that, described big mould core and described small mould core all stretch into the discharge opening of described counterdie through described bonding container near one end of described counterdie, described big mould core and described small mould core and described discharge opening coordinate near the part of described bonding container and are formed into nibs, and the cross sectional shape of described forming hole is corresponding with the cross sectional shape of thin cylinder cylinder to be processed.
10. thin cylinder cylinder extrusion die according to claim 7, is characterized in that, described big mould core offers fabrication hole, and described fabrication hole is communicated with described discharge opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649807.3U CN204135100U (en) | 2014-10-31 | 2014-10-31 | Thin cylinder cylinder extrusion die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420649807.3U CN204135100U (en) | 2014-10-31 | 2014-10-31 | Thin cylinder cylinder extrusion die |
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| CN204135100U true CN204135100U (en) | 2015-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420649807.3U Expired - Fee Related CN204135100U (en) | 2014-10-31 | 2014-10-31 | Thin cylinder cylinder extrusion die |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377937A (en) * | 2017-07-31 | 2017-11-24 | 广州科技职业技术学院 | Bicycle rim multi-hole extrusion die |
| CN108687153A (en) * | 2018-07-05 | 2018-10-23 | 中北大学 | Axial-radial Splicing Mechanism shaping dies of the wide flange stud cylindrical member of thin-walled |
| CN109078994A (en) * | 2018-07-05 | 2018-12-25 | 中北大学 | Axial-radial Splicing Mechanism manufacturing process of the wide flange stud cylindrical member of thin-walled |
| CN109332414A (en) * | 2018-09-29 | 2019-02-15 | 山东大学 | A kind of butterfly extrusion die for flat wide thin-walled multi-cavity aluminum profile production |
| CN110421017A (en) * | 2019-08-19 | 2019-11-08 | 江苏锦绣铝业有限公司 | New energy battery pack lifting lug profile extrusion die |
| CN111940532A (en) * | 2020-07-15 | 2020-11-17 | 厦门理工学院 | Extrusion die and lubricating method thereof |
-
2014
- 2014-10-31 CN CN201420649807.3U patent/CN204135100U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377937A (en) * | 2017-07-31 | 2017-11-24 | 广州科技职业技术学院 | Bicycle rim multi-hole extrusion die |
| CN108687153A (en) * | 2018-07-05 | 2018-10-23 | 中北大学 | Axial-radial Splicing Mechanism shaping dies of the wide flange stud cylindrical member of thin-walled |
| CN109078994A (en) * | 2018-07-05 | 2018-12-25 | 中北大学 | Axial-radial Splicing Mechanism manufacturing process of the wide flange stud cylindrical member of thin-walled |
| CN109332414A (en) * | 2018-09-29 | 2019-02-15 | 山东大学 | A kind of butterfly extrusion die for flat wide thin-walled multi-cavity aluminum profile production |
| CN110421017A (en) * | 2019-08-19 | 2019-11-08 | 江苏锦绣铝业有限公司 | New energy battery pack lifting lug profile extrusion die |
| CN111940532A (en) * | 2020-07-15 | 2020-11-17 | 厦门理工学院 | Extrusion die and lubricating method thereof |
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Granted publication date: 20150204 Termination date: 20201031 |
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