CN105598416A - Die of structure for conducting secondary extrusion and locally eliminating air holes of fixed die - Google Patents
Die of structure for conducting secondary extrusion and locally eliminating air holes of fixed die Download PDFInfo
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- CN105598416A CN105598416A CN201510837185.6A CN201510837185A CN105598416A CN 105598416 A CN105598416 A CN 105598416A CN 201510837185 A CN201510837185 A CN 201510837185A CN 105598416 A CN105598416 A CN 105598416A
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Abstract
The invention relates to a die a structure for conducting secondary extrusion and locally eliminating air holes of a fixed die. The die comprises a die body, the die body is provided with a plurality of extrusion rods, one end of each extrusion rod stretches into a cavity of the die body, and the other end of each extrusion rod stretches out of the die body and fixed to a corresponding extrusion plate which can conduct reciprocating motion in the axial direction of the corresponding extrusion rod; the upper portions of the extrusion plates are provided with inclined troughs, the inclined troughs are internally provided with extrusion wedge blocks which are driven by oil cylinders to slide back and forth, and the bottoms of the front ends of the extrusion wedge blocks which are buckled into the inclined troughs are arranged to be inclined surfaces. According to the die, the structure that the oil cylinders drive the extrusion plates, and the extrusion plates are provided with the extrusion rods is adopted, the overall structure can be completely attached to the surface of the die or placed into the die, and the occupied space is small; the structure that the extrusion plates are provided with the extrusion rods is adopted so that a plurality of secondary extrusion points can be provided, all the extrusion points are adjacent to one another and connected into a large secondary extrusion region, and the area of the secondary extrusion region is greatly raised; the secondary extrusion actions of all the extrusion rods are synchronous, and the secondary extrusion effect can be better.
Description
Technical field
The present invention relates to a kind of mould, especially relate to the local air hole structure mould of eliminating of a kind of cover half secondary extrusion.
Background technology
For the product of compression casting, the for example aluminum die-cast product of automobile fitting engine class, quality aspect is not to there being the product requirement of gas hole defect higher, although modern mould has a lot of new technology in application, as improve the cast gate that enters of mould, exhaust, the measures such as runner, elimination to pore improves greatly, the product of pore again after casting, also can eliminate pore by post processing impregnation technology, but for having occurred that a large amount of wall thickness difference are very large, performance requirement is high, complex structure, even all very bad product parts of depanning and die casting usability smoothly, solve effect still not good enough, this gives the figuration manufacture of part, bring great challenge especially to the casting forming of part. for this reason, there is inventor to propose secondary extrusion technology, the for example public technology of " with the compression mod of secondary extrusion mechanism " (Granted publication number: CN201147834Y) by name, the compression mod of the disclosure technology is made up of compression mod and secondary extrusion mechanism, secondary extrusion mechanism comprises the extruding core joining with the profile back die cavity of the thick large part of die casting, this extruding core props up the die casting in die cavity, be sheathed on the extruding core retainer plate of extruding outside core, and with the joining extrusion oil cylinder of extruding core, said extruding core retainer plate and die body fix, although the disclosure technology provides the means of secondary extrusion, but come with some shortcomings, it is directly passed extruding core retainer plate by extrusion oil cylinder and pushes core, take up room large, requirement has been improved in the utilized space of die casting equipment, especially, the secondary extrusion point of this structure concentrates on and pushes core retainer plate, make secondary extrusion region area limited, be difficult to adjacent domain to carry out secondary extrusion simultaneously, limited to the quality improvement of die casting.
Summary of the invention
Main purpose of the present invention is to provide the local air hole structure mould of eliminating of a kind of cover half secondary extrusion that takes up room little, secondary extrusion region area is large.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: the local air hole structure mould of eliminating of cover half secondary extrusion, comprise mould, it is characterized in that: some pressure rams are set on mould, cavity body of mould is stretched in pressure ram one end, and the other end stretches out that mould is fixed on can be along axially reciprocating stripper plate of pressure ram; The top of stripper plate is provided with skewed slot, in skewed slot, arrange the Ji Ya that slides in front and back by hydraulic oil cylinder driving ?piece, buckle into Ji Ya in skewed slot ?piece front bottom end be set to inclined-plane. Adopt the structure that pressure ram is set on hydraulic oil cylinder driving stripper plate, stripper plate, overall structure can be posted by die surface completely or be placed in mould, takes up room less; And the structure of pressure ram is set on stripper plate, and multiple secondary extrusion points can be provided, each extruding point is located adjacent one another, is linked to be large stretch of secondary extrusion region, has significantly improved secondary extrusion region area; And the secondary extrusion action of each pressure ram is synchronous, make the better effects if of secondary extrusion.
As preferably, stripper plate setting makes stripper plate move down the resetting means of rear reset; This resetting means is the spring arranging between stripper plate and mould. This resetting structure, simple in structure, cost is lower, reset reliable, fast, and volume is little, can further reduce space hold in response.
As preferably, pressure ram arranges open slot in the end of cavity body of mould one end; The sidepiece of open slot extends, until connect pressure ram outer peripheral face, the bottom of groove extends out formation capacity expansion tank. Strengthen the accommodation space of semi solid aluminum, reduce the semi solid aluminum that enters goods inside, further to improve casting quality.
As preferably, oil cylinder has two or more, each hydraulic oil cylinder driving connect a Ji Ya ?piece; Stripper plate is provided with the skewed slot consistent with oil cylinder quantity, in each skewed slot, arrange a Ji Ya ?piece. This structure, provides larger extruding force, makes foundry goods finer and close; And more pressure ram can be set carry out secondary extrusion, further to increase secondary extrusion region.
As preferably, the piston rod of oil cylinder is connected with slide bar; Slide bar and piston rod be arranged in parallel, and a side is provided with several travel switches; On the body of rod of slide bar, be arranged with the circle cover that several can trigger travel switch; Circle puts establishes adjustment screw; This adjustment screw is along the radially setting of circle cover, and end is resisted against on slide bar. Be convenient to regulate oil cylinder stroke, make oil cylinder running section more reasonable, more efficient; Final position can more accurately control the action of pressure ram secondary extrusion time, improves secondary extrusion effect; This stroke controlling structure, simple in structure, corresponding quick, be easy to install.
As preferably, Ji Ya ?piece arrange Ji Ya ?piece limiting plate, Ji Ya ?the end of piece limiting plate extend to stripper plate, to Ji Ya ?below or top or a side on piece front bottom end inclined-plane. Ji Ya ?piece limiting plate can be resisted against on stripper plate, prevent Ji Ya ?piece bump against other parts of mould, improved the security of mold integral structure.
As preferably, guider is set on stripper plate; This guider comprises to be located at the T-shaped gathering sill at stripper plate two ends and to be located at the bearing in this gathering sill, and rest base is fixed on mould. This guide frame, simple in structure, to be convenient to manufacture, compact conformation, takes up room little, leads accurately, moves smooth.
As preferably, Ji Ya ?piece be connected with Ji Ya ?piece Connection Block; Ji Ya ?piece Connection Block be top two bight indents are bar-shaped trough, press strip is set in bar-shaped trough, and press strip is fixed on mould; Chute is set on mould, Ji Ya ?piece Connection Block be placed in this chute and with it form be slidably matched. Chute on mould, for Ji Ya ?piece Connection Block dragging track is provided, make Ji Ya ?piece operation more steady, thereby make the secondary extrusion action of pressure ram more steady, can control more accurately extruding action, to obtain higher secondary extrusion effect. This structure, syndeton is located at mould inside, takes full advantage of die space, has saved space outerpace.
As preferably, Ji Ya ?piece end extend to both sides and form T-shaped boss, with Ji Ya ?the Ji Ya that is connected of piece ?piece Connection Block end arrange and the T-shaped groove of this T-shaped boss adaptation; Ji Ya ?the other end of piece Connection Block threaded joints is set, directly connect or the piston rod that the transition of oil cylinder working shaft connects oil cylinder be set by this threaded joints. Ji Ya ?piece Connection Block threaded one end connect oil cylinder working shaft, the T-shaped groove Lian of the other end connect Ji Ya ?piece, be convenient to install and adjust, and be difficult for producing torsional moment, avoid increasing Ji Ya ?frictional force between piece Connection Block and the chute of mould, make Ji Ya ?piece Connection Block be easy to slide in the chute of mould.
As preferably, Ji Ya ?the inclined-plane with several different gradients, the inclined-plane of piece front bottom end form, anterior gradient is little, rear portion gradient is large. Anterior gradient is little, rear portion gradient is large, and while making to press down, starting velocity is slower, and later stage speed strengthens gradually, before stopping, reaches maximum, makes foundry goods finer and close, has improved the effect of secondary extrusion.
Therefore, the present invention, by pressure ram being set on hydraulic oil cylinder driving stripper plate, stripper plate, makes secondary extrusion structure can be posted by die surface completely or be placed in mould, takes up room little; And multiple secondary extrusion points are provided, and each extruding point is located adjacent one another, is linked to be large stretch of secondary extrusion region, thereby has significantly improved secondary extrusion region area; The secondary extrusion action of each pressure ram is synchronous, can obtain better secondary extrusion effect. Adopt two or more oil cylinders, each hydraulic oil cylinder driving connect a Ji Ya ?piece, each Ji Ya ?piece insert the structure of a skewed slot, larger extruding force is provided, make foundry goods finer and close; And more pressure ram can be set carry out secondary extrusion, further to enhance large secondary extrusion region.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the present invention.
Accompanying drawing 2 is rearviews of accompanying drawing 1.
Accompanying drawing 3 is a kind of structural representations of secondary extrusion mechanism.
Accompanying drawing 4 is rearviews of accompanying drawing 3.
Accompanying drawing 5 be Ji Ya ?the expanded view of piece Connection Block.
Accompanying drawing 6 is axonometric drawings of stripper plate.
Accompanying drawing 7 is a kind of structural representations of accompanying drawing 6.
Accompanying drawing 8 is a kind of structural representations of pressure ram.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, technical scheme of the present invention is described in further detail.
Embodiment: the local air hole structure mould of eliminating of cover half secondary extrusion of the present invention, as shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, it comprises mould 19, some pressure rams 5 are set on mould 19, mould 19 cavitys are stretched in pressure ram 5 one end, and the other end stretches out that mould is fixed on can be along the axial reciprocating stripper plate 6 of pressure ram 5; The top of stripper plate 6 is provided with skewed slot 61, in skewed slot 61, arrange by oil cylinder 10 drive and the Ji Ya that slides in front and back ?piece 7, buckle into Ji Ya in skewed slot 61 ?piece 7 front bottom end be set to and the inclined-plane of skewed slot 61 bottom surface adaptations.
As shown in accompanying drawing 3, accompanying drawing 4, stripper plate 6 arranges and makes stripper plate 6 move down the resetting means of rear reset. This resetting means is the spring 4 arranging between stripper plate 6 and mould 19; Or the elastic device arranging between stripper plate 6 and mould 19, for example elastic ring; Or this resetting means comprises the mechanism of the power set driving arranging between stripper plate 6 and mould 19, the mechanism of for example air cylinder driven.
As shown in accompanying drawing 3, accompanying drawing 4, accompanying drawing 6, accompanying drawing 7, on stripper plate 6, guider is set. This guider is guide rail, or guide pillar; As a selection scheme preferably, guider comprises to be located at the T-shaped gathering sill at stripper plate 6 two ends and to be located at the bearing 63 in this gathering sill, and mould 19 is fixed in bearing 63 bottoms.
As shown in Figure 2, pressure ram 5 peripheries slidably connect bar cover; On mould 19, installing hole is set, bar cover is fixed in this installing hole. As shown in Figure 8, pressure ram 5 arranges open slot 51 in the end of mould 19 cavity one end; The sidepiece of open slot 51 extends, until connect pressure ram 5 outer peripheral faces, the bottom of groove extends out and forms capacity expansion tank 52. When pressure rod action, orifice part semi solid aluminum is advanced to goods inside; The setting of open slot and capacity expansion tank, the accommodation space of increasing semi solid aluminum, reduces the semi solid aluminum that enters goods inside, further to improve casting quality.
As shown in Figure 5, Ji Ya ?piece 7 be connected with Ji Ya ?piece Connection Block 8; Ji Ya ?piece Connection Block 8 be top two bight indents are bar-shaped trough, press strip 92 is set in bar-shaped trough, and press strip is fixed on mould 19; On mould 19, chute is set, Ji Ya ?piece Connection Block 8 be placed in this chute and with it form be slidably matched.
As shown in accompanying drawing 3, accompanying drawing 5, Ji Ya ?piece 7 ends extend to both sides and form T-shaped boss 71, with Ji Ya ?the Ji Ya that is connected of piece 7 ?piece Connection Block 8 ends arrange and the T-shaped groove of these T-shaped boss 71 adaptations; Ji Ya ?the other end of piece Connection Block 8 threaded joints is set, directly connect or the piston rod that 3 transition of oil cylinder working shaft connect oil cylinders 1 be set by this threaded joints. Ji Ya ?piece Connection Block 8 threaded one ends connect oil cylinder working shafts, the T-shaped groove Lian of the other end connect Ji Ya ?piece, be convenient to install and adjust, and be difficult for producing torsional moment, avoid increasing Ji Ya ?frictional force between piece Connection Block 8 and the chute of mould, make Ji Ya ?piece Connection Block 8 be easier to slide in the chute of mould.
As shown in accompanying drawing 4, accompanying drawing 5, Ji Ya ?piece 7 arrange Ji Ya ?piece limiting plate 10, Ji Ya ?the end of piece limiting plate 10 extend to stripper plate 6, to Ji Ya ?below or top or a side on piece 7 front bottom end inclined-planes. Ji Ya ?piece limiting plate 10 can be resisted against on stripper plate 6, prevent Ji Ya ?piece bump against other parts of mould.
As shown in Figure 5, Ji Ya ?the inclined-plane with several different gradients, the inclined-plane of piece 7 front bottom end form, anterior gradient is little, rear portion gradient is large. Anterior gradient is little, rear portion gradient is large, and while making to press down, starting velocity is slower, and later stage speed strengthens gradually, before stopping, reaches maximum, improves the effect of secondary extrusion.
Oil cylinder 10 has two or more, each oil cylinder 1 drive connect a Ji Ya ?piece 7; Stripper plate 6 is provided with the skewed slot 61 consistent with oil cylinder 10 quantity, in each skewed slot 61, arrange a Ji Ya ?piece 7.
As shown in accompanying drawing 2, accompanying drawing 4, the piston rod of oil cylinder 10 is connected with slide bar 21; Slide bar 21 be arranged in parallel with piston rod, and a side is provided with several travel switches 2, is arranged with several circles that can trigger travel switch 2 and overlaps 22 on the body of rod of slide bar 21; On circle cover 22, establish adjustment screw; This adjustment screw is along the radially setting of circle cover 22, and end is resisted against on slide bar 21.
Below taking aluminium casting as example illustrates principle of the present invention: a die casting, aluminium liquid is all squeezed into the moment in mold cavity, product is carried out to local aluminium liquid extruding, by oil cylinder 1 with drive oil cylinder working shaft 3, promote Ji Ya ?piece Connection Block 8, Ji Ya ?piece 7 move forward; Due to Ji Ya ?the effect of piece, stripper plate 6 is down moved, drive pressure ram 5 down to move the aluminium liquid of product part is carried out to secondary extrusion, by the circle cover 22 on slide bar 21 and travel switch 3 adjust Ji Ya ?the stroke of piece, when pressure ram completes after local extruding, oil cylinder is drawn back, and spring 4 resets the up drive pressure ram of stripper plate.
The present invention is directed to the insoluble technical problem of the local pore of existing compression mod, adopted the local extrusion structure of cover half secondary, casting quality is got a promotion, can extensive use; Efficiently solve wall thickness variation and greatly, easily produce the Technology Difficulties problems such as pore.
Claims (10)
1. the local air hole structure mould of eliminating of cover half secondary extrusion, comprise mould (19), it is characterized in that: some pressure rams (5) are set on mould (19), mould (19) cavity is stretched in pressure ram (5) one end, and the other end stretches out that mould is fixed on can be along axially reciprocating stripper plate (6) of pressure ram (5); The top of stripper plate (6) is provided with skewed slot (61), arrange in skewed slot (61) by oil cylinder (10) drive and the Ji Ya that slides in front and back ?piece (7), buckle into Ji Ya in skewed slot (61) ?piece (7) front bottom end be set to inclined-plane.
2. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, is characterized in that: stripper plate (6) setting makes stripper plate (6) move down the resetting means of rear reset; This resetting means is the spring (4) arranging between stripper plate (6) and mould (19).
3. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, is characterized in that: pressure ram (5) arranges open slot (51) in the end of mould (19) cavity one end; The sidepiece of open slot (51) extends, until connect pressure ram (5) outer peripheral face, the bottom of groove extends out and forms capacity expansion tank (52).
4. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, is characterized in that: oil cylinder (10) has two or more, each oil cylinder (1) drive connect a Ji Ya ?piece (7); Stripper plate (6) is provided with the skewed slot (61) consistent with oil cylinder (10) quantity, in each skewed slot (61), arrange a Ji Ya ?piece (7).
5. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, is characterized in that: the piston rod of oil cylinder (10) is connected with slide bar (21); Slide bar (21) be arranged in parallel with piston rod, and a side is provided with several travel switches (2); On the body of rod of slide bar (21), be arranged with the circle cover (22) that several can trigger travel switch (2); On circle cover (22), establish adjustment screw; This adjustment screw is along the radially setting of circle cover (22), and end is resisted against on slide bar (21).
6. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, it is characterized in that: Ji Ya ?piece (7) arrange Ji Ya ?piece limiting plate (10) Ji Ya ?the end of piece limiting plate (10) extend to stripper plate (6), to Ji Ya ?below or top or a side on piece (7) front bottom end inclined-plane.
7. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 1, is characterized in that: stripper plate arranges guider on (6); This guider comprises to be located at the T-shaped gathering sill at stripper plate (6) two ends and to be located at the bearing (63) in this gathering sill, and mould (19) is fixed in bearing (63) bottom.
8. according to the local air hole structure mould of eliminating of cover half secondary extrusion described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that: Ji Ya ?piece (7) be connected with Ji Ya ?piece Connection Block (8); Ji Ya ?piece Connection Block (8) for the two bight indents on top are bar-shaped trough, press strip (92) is set in bar-shaped trough, press strip is fixed on mould (19); Mould arranges chute on (19), Ji Ya ?piece Connection Block (8) be placed in this chute and with it form be slidably matched.
9. the local air hole structure mould of eliminating of cover half secondary extrusion according to claim 8, it is characterized in that: Ji Ya ?piece (7) end extend to both sides and form T-shaped boss (71), with Ji Ya ?the Ji Ya that is connected of piece (7) ?piece Connection Block (8) end arrange and the T-shaped groove of this T-shaped boss (71) adaptation; Ji Ya ?the other end of piece Connection Block (8) threaded joints is set, this threaded joints is directly or the piston rod that oil cylinder working shaft (3) transition connects oil cylinder (1) is set.
10. according to the local air hole structure mould of eliminating of the cover half secondary extrusion described in claim 1 or 2 or 3 or 4 or 5 or 6 or 7, it is characterized in that: Ji Ya ?the inclined-plane with several different gradients, the inclined-plane of piece (7) front bottom end form, anterior gradient is little, rear portion gradient is large.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837185.6A CN105598416B (en) | 2015-11-26 | 2015-11-26 | Cover half secondary extrusion locally eliminates air hole structure mould |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510837185.6A CN105598416B (en) | 2015-11-26 | 2015-11-26 | Cover half secondary extrusion locally eliminates air hole structure mould |
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| CN105598416A true CN105598416A (en) | 2016-05-25 |
| CN105598416B CN105598416B (en) | 2017-08-29 |
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| CN201510837185.6A Active CN105598416B (en) | 2015-11-26 | 2015-11-26 | Cover half secondary extrusion locally eliminates air hole structure mould |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090321034A1 (en) * | 2008-06-30 | 2009-12-31 | Kabushiki Kaisha Toshiba | Die and method of manufacturing cast product |
| CN201906813U (en) * | 2011-01-11 | 2011-07-27 | 东莞市东升压铸模具有限公司 | Secondary pressurizing and die-casting mould for manufacturing head cover |
| CN201940573U (en) * | 2011-01-12 | 2011-08-24 | 东莞宜安科技股份有限公司 | Local pressurization vacuum die casting die |
| CN103100694A (en) * | 2013-01-26 | 2013-05-15 | 姚国志 | Liquid alloy secondary combined extrusion casting device |
| CN203862988U (en) * | 2014-05-21 | 2014-10-08 | 宁波市北仑赛维达机械有限公司 | Die-casting die with local pressurization device |
| CN104858388A (en) * | 2015-05-21 | 2015-08-26 | 上海东岩机械股份有限公司 | Local extrusion forming device for die and extrusion forming technology thereof |
| CN104959568A (en) * | 2015-07-16 | 2015-10-07 | 厦门理工学院 | High-precision die-casting die provided with local pressurizing mechanism and casting method |
-
2015
- 2015-11-26 CN CN201510837185.6A patent/CN105598416B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090321034A1 (en) * | 2008-06-30 | 2009-12-31 | Kabushiki Kaisha Toshiba | Die and method of manufacturing cast product |
| CN201906813U (en) * | 2011-01-11 | 2011-07-27 | 东莞市东升压铸模具有限公司 | Secondary pressurizing and die-casting mould for manufacturing head cover |
| CN201940573U (en) * | 2011-01-12 | 2011-08-24 | 东莞宜安科技股份有限公司 | Local pressurization vacuum die casting die |
| CN103100694A (en) * | 2013-01-26 | 2013-05-15 | 姚国志 | Liquid alloy secondary combined extrusion casting device |
| CN203862988U (en) * | 2014-05-21 | 2014-10-08 | 宁波市北仑赛维达机械有限公司 | Die-casting die with local pressurization device |
| CN104858388A (en) * | 2015-05-21 | 2015-08-26 | 上海东岩机械股份有限公司 | Local extrusion forming device for die and extrusion forming technology thereof |
| CN104959568A (en) * | 2015-07-16 | 2015-10-07 | 厦门理工学院 | High-precision die-casting die provided with local pressurizing mechanism and casting method |
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| CN105598416B (en) | 2017-08-29 |
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Effective date of registration: 20170726 Address after: 315800 Zhejiang Province, Ningbo city Beilun District Chunxiao Guanhai Road No. 27 Applicant after: Ningbo City Beilun Xinlin Machinery and Electric Mould Co., Ltd. Address before: 315800 Zhejiang city of Ningbo Province River Road, Kwun Tong, Beilun Daqi high-grade mold Park No. 36 Applicant before: Ningbo Junling Mould Technology Co., Ltd. |
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Address after: 315800 No. 1, building 1 and building 2, No. 37, guantanghe Road, Daqi, Beilun District, Ningbo City, Zhejiang Province Patentee after: Ningbo Xinlin Mould Technology Co.,Ltd. Address before: 315800 No. 27, Chunxiao Guanhai Road, Beilun District, Ningbo City, Zhejiang Province Patentee before: NINGBO BEILUN XINLIN ELECTROMECHANICAL MOULD CO.,LTD. |