CN202479253U - Extrusion pad and extrusion device used for extrusion - Google Patents
Extrusion pad and extrusion device used for extrusion Download PDFInfo
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- CN202479253U CN202479253U CN201220092435XU CN201220092435U CN202479253U CN 202479253 U CN202479253 U CN 202479253U CN 201220092435X U CN201220092435X U CN 201220092435XU CN 201220092435 U CN201220092435 U CN 201220092435U CN 202479253 U CN202479253 U CN 202479253U
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- dummy block
- extrusion
- extruding
- axle
- pressure ram
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Abstract
The utility model provides an extrusion pad and an extrusion device used for extrusion. The extrusion device provided by the utility model comprises a host machine, an extrusion rod, the extrusion pad, an extrusion cylinder and a die, wherein the extrusion pad is provided with a bolt seat, and a groove is arranged at the front end of the extrusion rod and can be matched with the bolt seat in the extrusion pad due to the shape of the groove, so that the extrusion rod and the extrusion pad can be assembled together. The extrusion device provided by the utility model is utilized for extruding magnesium alloy blanks, so that the utilization ratio of the material is increased, the operation efficiency is improved, and the extrusion cylinder can be prevented from being polluted.
Description
Technical field
The present invention relates to the dummy block and the pressurizing unit that are used to push, relate in particular to the dummy block and the pressurizing unit that are applicable to the metal extruded product of producing various sectional dimension bars, sheet material and section bar in enormous quantities.
Background technology
Extruding is a kind of commonly used and effective processing technology in the light metal material manufacture field, can obtain tube, rod section material, wire rod and the strip material of different shape and sectional dimension through extruding.
The mode of hot extrusion is generally adopted in the extruding of magnesium alloy etc.Existing magnesium alloy extrusion technique most is put into recipient for the blank that preheating is good, and adds dummy block, under certain extrusion speed, thereby by pressure ram promotion dummy block make blank by jumping-up to extrusion molding.But because the front end of dummy block and the end of blank are bonded together, so need cut 3 to 5 centimetres blank (hereinafter referred to as pushing clout), this has caused the utilization rate of blank to descend, and cost increases.
And, accomplish in each extruding, when clout is pushed in excision, need to suspend machine.The extruded product cooling that rests on discharging opening is very fast, forms certain temperature difference with the temperature of recipient.Extruding cause easily during next root blank two blank seam not firm, situation such as crackle appears.If to the strict product of material performance requirement, usually, also need be with the interface position excision of extruded product, in order to avoid influence product quality.Add the unavoidable waste material that forms in the later stage production process, the utilization rate of material also descends thereupon.
Therefore, improve the utilization rate of material, guarantee the quality of product, thereby reduce production costs, the development of enterprise is seemed to be even more important.
Summary of the invention
The present invention be directed to the problems referred to above that exist in the conventional art makes.A kind of extrusion process that can realize that the present invention is intended to propose does not have the dummy block that is used to push and the pressurizing unit of remaining blank.
According to an aspect of the present invention; A kind of dummy block that is used to push is provided; Said dummy block comprises: axle, axle cap, locking bar, screw, bayonet lock seat and shell; Said axle is contained in the said shell, and the said locking bar that said screw passes the end that is positioned at said axle is connected with said axle with said axle cap, and said bayonet lock seat is inserted in the precalculated position in the said dummy block.
According to dummy block of the present invention, also comprise keeper, said bayonet lock seat is fixed on the said dummy block through the said keeper of packing into from the groove at the edge of said shell.
According to dummy block of the present invention, the front end of said axle has gradient.
According to a further aspect in the invention; A kind of pressurizing unit is provided; It comprises main frame, pressure ram, dummy block, recipient and mould, it is characterized in that, the front end of said pressure ram has groove; The shape of this groove make it possible to said dummy block in the bayonet lock seat match, so that said pressure ram and said dummy block are assembled together.
According to pressurizing unit of the present invention, the surfaces coated of wherein said dummy block is wiped with lubricant.
Utilize pressurizing unit of the present invention; Efficiently solve in the metal extrusion process of (especially producing in enormous quantities), because the restriction of the existing tooling device of material has produced a large amount of extruding clouts; Add the quality of later stage product and scrap the waste material of formation, and the problem that causes cost to increase greatly.
Description of drawings
Fig. 1 is the structural representation that the dummy block in the pressurizing unit according to an embodiment of the invention is shown.
Fig. 2 is the structural representation that the pressure ram in the pressurizing unit according to an embodiment of the invention is shown.
The specific embodiment
Now, the exemplary embodiment that present invention will be described in detail with reference to the accompanying.In the following description, be that example has been explained dummy block that is used to push of the present invention and pressurizing unit with the magnesium alloy.
Pressurizing unit of the present invention comprises main frame, pressure ram, dummy block, recipient and mould.In the present invention, therefore similar in the structure of main frame, recipient and mould and the general pressurizing unit omit the explanation to them, and the present invention will mainly describe dummy block and the recipient in the pressurizing unit.
Below, the structure of the dummy block in the pressurizing unit according to an embodiment of the invention will be described with reference to Fig. 1.As shown in Figure 1, dummy block comprises: axle 1, axle cap 2, locking bar 3, screw 4, bayonet lock seat 5 and shell 7.
Before the extruding beginning, at first each parts with dummy block assemble.Specifically, earlier axle 1 is packed in the shell 7 of dummy block.Next, successively at the end of axle 1 pack into axle cap 2 and locking bar 3.Then, screw 4 is passed locking bar 3 be connected with axle 1 with axle cap 2, thus axle 1 is fixing.Afterwards, bayonet lock seat 5 is screwed in the shell 7 to suitable position.Preferably, extruding according to the present invention is paid somebody's debt and expected repayment later and is comprised keeper 6 (for example dog screw), and this keeper 6 is packed into from the groove at the edge of the shell 7 of dummy block, bayonet lock seat 5 is located and fix.Thus, accomplished the installation of dummy block.
In pressurizing unit of the present invention, mounted dummy block will be assembled together with pressure ram, forms an integral body.Fig. 2 illustration the structural representation of the pressure ram in the pressurizing unit according to an embodiment of the invention.As shown in Figure 2, the structure of the pressure ram in the structure of pressure ram and the general pressurizing unit is similar, and its difference is that the front end of pressure ram of the present invention has groove.The shape of this groove make it possible to dummy block in bayonet lock seat 5 match, thereby pressure ram and dummy block are assembled together.
In the present invention; Because dummy block and pressure ram are assembled together securely,, the extruding of magnesium alloy blank can dummy block be withdrawed from from recipient in company with pressure ram together when accomplishing, and make blank separate fully with dummy block; Thereby compare with the simple contacting structure of dummy block with pressure ram in the pressurizing unit of prior art; Need not excise the extruding clout, improve the utilization rate of blank, practice thrift cost.
In addition; The pressurizing unit that utilizes dummy block of the present invention and pressure ram to be assembled together securely; Because when accomplishing the extruding of magnesium alloy blank; Can dummy block be withdrawed from and need not move recipient together and excise the extruding clout in company with pressure ram from recipient, thereby save the operating time, improve operating efficiency.
In addition, in the present invention, preferably the front end of the axle 1 of dummy block is formed and have certain gradient (for example the front end of axle 1 forms taper).When the extrusion magnesium alloy blank; This front end with gradient can make the shell 7 of dummy block expand; This makes the shell 7 of dummy block closely cooperate with recipient; Thereby can prevent to spill the slit of blank between dummy block and recipient, pollute recipient, extruding caused the waste of difficulty and formation blank.
In addition, in the present invention, preferably before extruding, dummy block is lubricated processing.For example, smear one deck lubricant (the for example mixture of boron nitride and molybdenum dioxide) on the dummy block surface, preventing in extrusion process, damaging dummy block, thereby prolong service life of dummy block.
Below, specify the magnesium alloy extrusion process of utilizing pressurizing unit of the present invention to carry out.
Before the extruding of carrying out magnesium alloy, at first recipient, pressure ram and dummy block and blank are carried out preheating.For example, recipient is preheated to 350 to 400 ℃, the magnesium alloy blank is preheated to 380 to 420 ℃, pressure ram and dummy block are preheated to 300 to 350 ℃.Then, the blank of accomplishing preheating is packed in the recipient, and pressure ram that is assembled together and dummy block are encased in the pressurizing unit.Afterwards, promoting pressure ram drive dummy block carries out continuously extruded to blank.When extruding finished, recipient remained unchanged, and pressure ram drives dummy block and from recipient, withdraws from.
In addition, preferably before extruding to the processing of slotting of the two ends of magnesium alloy blank, perhaps in extrusion process behind the dummy block liftout, make pressure ram drive dummy block and retreat a little, to reach the purpose of exhaust.
Because dummy block and pressure ram are assembled together in extrusion process, therefore when extruding is accomplished under the situation that pressure ram drive dummy block is withdrawn from from recipient, the pulling force that acts on the pressure ram can make blank separate fully with dummy block; Thereby not pushing clout sticks on the dummy block; Need not move recipient and excise the extruding clout, not only improve the utilization rate of material, practice thrift cost; And saved the operating time, improved operating efficiency.
In addition; In extrusion process; The reaction force that receives blank owing to the front end with gradient of dummy block expands the shell of dummy block, dummy block and recipient is closely cooperated, thereby can prevent to spill the slit of blank between dummy block and recipient; Pollute recipient, extruding is caused the waste of difficulty and formation blank.
In addition, before extruding, preferably on dummy block, smear one deck lubricant, be damaged, improve the service life of dummy block to prevent dummy block.
Below, specifically describe the specific embodiment that utilizes pressurizing unit of the present invention that magnesium alloy is pushed.
First embodiment
In the present embodiment, the magnesium alloy blank that uses of extruding is the AZ31B magnesium alloy of diameter 120mm, length 400mm (∮ 120*400).
Specifically, before extruding, recipient is preheated to 370 ℃, pressure ram that is assembled together and dummy block are preheated to 320 ℃, AZ31B magnesium alloy blank is preheated to 395 ℃.Then that preheating is good magnesium alloy blank is put into recipient, and pressure ram and dummy block that preheating is good are assembled in the pressurizing unit.Then, promoting pressure ram drive dummy block pushes blank.After extruding was accomplished, it is motionless that recipient keeps, and the pulling pressure ram drives dummy block and from recipient, withdraws from.Be four anode products of 21.34mm in the present embodiment with the continuously extruded one-tenth diameter of blank.
In embodiments of the present invention, when extruding was accomplished, the blank after dummy block and the extruding was accomplished and is separated, and need not excise the extruding clout, and not have remaining blank on the recipient.The total length of the anode product after the extruding is 50.4m, compares existing extrusion technique and has squeezed 2.4m more.
Second embodiment
In the present embodiment, the magnesium alloy blank that uses of extruding is the M1C magnesium alloy of diameter 120mm, length 350mm (∮ 120*350).
Specifically, before extruding, recipient is preheated to 350 ℃, pressure ram that is assembled together and dummy block are preheated to 300 ℃, M1C magnesium alloy blank is preheated to 380 ℃.Then that preheating is good magnesium alloy blank is put into recipient, and pressure ram and dummy block that preheating is good are assembled in the pressurizing unit.Then, promoting pressure ram drive dummy block pushes blank.After extruding was accomplished, it is motionless that recipient keeps, and the pulling pressure ram drives dummy block and from recipient, withdraws from.Be four anode products of 21.34mm in the present embodiment with the continuously extruded one-tenth diameter of blank.
In embodiments of the present invention, when extruding was accomplished, the blank after dummy block and the extruding separated fully, need not excise the extruding clout, and not have remaining blank on the recipient.The total length of the anode product after the extruding is 44.4m, compares existing extrusion technique and has squeezed 2m more.
The 3rd embodiment
In the present embodiment, the magnesium alloy blank that uses of extruding is the AZ31B magnesium alloy of diameter 120mm, length 400mm (∮ 120*400).
Specifically, before extruding, recipient is preheated to 390 ℃, pressure ram that is assembled together and dummy block are preheated to 350 ℃, AZ31B magnesium alloy blank is preheated to 400 ℃.Then that preheating is good magnesium alloy blank is put into recipient, and pressure ram and dummy block that preheating is good are assembled in the pressurizing unit.Then, promoting pressure ram drive dummy block pushes blank.After extruding was accomplished, it is motionless that recipient keeps, and the pulling pressure ram drives dummy block and from recipient, withdraws from.In the present embodiment with four sheet materials of the wide 68mm of the continuously extruded one-tenth of blank, thick 8mm.
In embodiments of the present invention, when extruding was accomplished, the blank after dummy block and the extruding separated fully, need not excise the extruding clout, and not have remaining blank on the recipient.The total length of the anode product after the extruding is 33.2m, compares existing extrusion technique and has squeezed 1.2m more.
According to above-mentioned each embodiment of the present invention; Compare with existing magnesium alloy extrusion technique; Utilize pressurizing unit of the present invention the magnesium alloy blank to be pushed the utilization rate and the operating efficiency that can improve material; And can prevent to pollute recipient, extruding caused the problem of the waste of difficulty and formation blank.
Though, be that example is illustrated dummy block of the present invention, pressurizing unit and extrusion process with the magnesium alloy in the superincumbent description, should be appreciated that the present invention is not limited in magnesium alloy, other materials, for example aluminium alloy etc. also is suitable for.
Claims (5)
1. dummy block that is used to push; It is characterized in that; Said dummy block comprises: axle, axle cap, locking bar, screw, bayonet lock seat and shell; Said axle is contained in the said shell, and the said locking bar that said screw passes the end that is positioned at said axle is connected with said axle with said axle cap, and said bayonet lock seat is inserted in the precalculated position in the said dummy block.
2. dummy block according to claim 1 is characterized in that, said extruding is paid somebody's debt and expected repayment later and comprised keeper, and said bayonet lock seat is fixed on the said dummy block through the said keeper of packing into from the groove at the edge of said shell.
3. dummy block according to claim 1 is characterized in that the front end of said axle has gradient.
4. pressurizing unit; It comprises main frame, pressure ram, dummy block, recipient and mould; It is characterized in that; The front end of said pressure ram has groove, and the shape of this groove makes it possible to and matches according to the bayonet lock seat in claim 1, the 2 or 3 described dummy blocks, so that said pressure ram and said dummy block are assembled together.
5. pressurizing unit according to claim 4 is characterized in that the surfaces coated of said dummy block is wiped with lubricant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220092435XU CN202479253U (en) | 2012-03-13 | 2012-03-13 | Extrusion pad and extrusion device used for extrusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220092435XU CN202479253U (en) | 2012-03-13 | 2012-03-13 | Extrusion pad and extrusion device used for extrusion |
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| CN202479253U true CN202479253U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220092435XU Expired - Lifetime CN202479253U (en) | 2012-03-13 | 2012-03-13 | Extrusion pad and extrusion device used for extrusion |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962286A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extruding cushion device |
| CN102962285A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extruding cushion device |
| CN102962282A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extrusion core |
| CN103302129A (en) * | 2012-03-13 | 2013-09-18 | 天津东义镁制品股份有限公司 | Extrusion cushion, extrusion device and extrusion method for extruding |
-
2012
- 2012-03-13 CN CN201220092435XU patent/CN202479253U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302129A (en) * | 2012-03-13 | 2013-09-18 | 天津东义镁制品股份有限公司 | Extrusion cushion, extrusion device and extrusion method for extruding |
| CN102962286A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extruding cushion device |
| CN102962285A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extruding cushion device |
| CN102962282A (en) * | 2012-11-02 | 2013-03-13 | 无锡鸿声铝业有限公司 | Extrusion core |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
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| CX01 | Expiry of patent term |