CN103521736A - Impeller die-casting die - Google Patents
Impeller die-casting die Download PDFInfo
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- CN103521736A CN103521736A CN201310106040.XA CN201310106040A CN103521736A CN 103521736 A CN103521736 A CN 103521736A CN 201310106040 A CN201310106040 A CN 201310106040A CN 103521736 A CN103521736 A CN 103521736A
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- plate
- hinged
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- rod
- pushing
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Abstract
The invention discloses an impeller die-casting die. The impeller die-casting die is characterized in that a combined pushing mechanism with eight swing blocks and one pushing tube is adopted, and the impeller die-casting die is composed of rollers, a connection rod, a tension spring, a swing rod, a hinged support, a pushing rod, a pushing-plate guide column, a swing handle, pin shafts, a pre-return rod, the swing blocks, a fixed-die cavity plate, a fixed-die sleeve plate, a fixed-die base plate, cores, a sprue bush, a limiting block, the pushing tube, a wedge-caulking cone, a spring, a supporting plate, a movable-die base plate, a pushing plate, a pushing-rod fixing plate and a guide column; the pushing tube with a crack is fixed to the pushing plate through the pushing-rod fixing plate, one core is fixed to the supporting plate through the other core, the swing blocks and the swing handle are hinged to the supporting plate through the corresponding pin shaft, the swing blocks are fixedly connected with the swing handle through pins and screws, the two ends of the connection rod are hinged to the two rollers, and the middle of the connection rod is hinged to one end of the swing rod through the corresponding pin shaft; the other end of the swing rod is hinged to the hinged support, the middle of the swing rod is elastically connected with the movable-die base plate through the tension spring, and therefore the two rollers on the connection rod are attached to the pushing plate all the time. Castings have clear outlines, smooth surfaces, consistent sizes, and high accuracy.
Description
Technical field
The present invention relates to casting field, especially a kind of with the pre-ejector sleeve of resetting-mechanism and the die casting mould for impellers of centering block push piece.
Background technology
As shown in Figure 1, material is ZL107 to blade wheel structure, and workpiece is comprised of 8 blades, and size is larger, and blade outer face diameter is 416mm, and the width of wheel hub is 84mm, and loosing core of centre bore adopts ejector sleeve to release with the demoulding of wheel hub.Blade profile is curved surface, and the wheel hub junction formation side of its root and approximate spheroid is recessed, and side recess is difficult for depanning in mould, and the contact area of blade and wheel hub is little, and intensity is less, needs to adopt swing-block mechamism push piece.Previously the design of mould structure is existed to problems, particularly the setting fixing and operating position about the major part ejector sleeve of ejecting mechanism is wrong, and swings push piece and can not synchronize and promote with straight line push piece.
Summary of the invention
In order to solve the setting fixing and operating position of the major part ejector sleeve of existing mold ejecting mechanism, be wrong, and swing push piece and straight line push piece and can not synchronize the problem promoting, the present invention proposes a kind of die casting mould for impellers, it adopts the combination push piece mechanism of 8 centering blocks and 1 ejector sleeve, foundry goods clear-cut, any surface finish, consistent size, precision is higher.
In order to address the above problem, technical scheme of the present invention is: the combination push piece mechanism of 8 centering blocks of this die casting mould for impellers and 1 ejector sleeve, by roller, connecting rod, extension spring, fork, hinged-support, push rod, push pedal guide pillar, pendulum handle, bearing pin, pre-release link, centering block, cover half cavity plate, cover half cage plate, top clamping plate, core, sprue bush, limited block, ejector sleeve, wedging cone, spring, support plate, Bottom clamp plate, push pedal, ejector pin retaining plate, guide pillar forms, with open-minded ejector sleeve, by ejector pin retaining plate, be fixed on push pedal, core is fixed on support plate by core, the centering block that pin is fixedly connected with screw and pendulum handle are articulated with on support plate with bearing pin, hinged two rollers in connecting rod two ends, middle hinged with bearing pin and fork one end.The other end and the hinged-support of fork are hinged, and centre is connected with Bottom clamp plate elasticity by extension spring, and two rollers on connecting rod are fitted in push pedal all the time.
Described mould, while it is characterized in that matched moulds, the tension force that is contained in the Compress Spring in support plate promotes the free end centering block rotation return of pendulum handle, and by wedging cone location.
Described mould, is characterized in that the position that centering block and drawn stem promote is designed to curved surface.
The invention has the beneficial effects as follows: adopt centering block with open-minded ejector sleeve push piece and the pre-resetting-mechanism of connecting rod.With open-minded ejector sleeve, foundry goods centre bore and whole foundry goods disengaging dynamic model are played a major role, at push piece initial time, loosening between centering block and the blade of foundry goods, be conducive to the blade demoulding.Through die trial, production efficiency meets production requirement.Foundry goods clear-cut, any surface finish, consistent size, precision is higher.
Accompanying drawing explanation
Fig. 1 blade wheel structure schematic diagram;
The generalized section of Fig. 2 Fig. 1;
Fig. 3 structural representation of the present invention;
The A of Fig. 4 Fig. 3 is to view;
1. rollers in figure, 2. connecting rod, 3. extension spring, 4. fork, 5. hinged-support, 6. push rod, 7. push pedal guide pillar, 8. put handle, 9. bearing pin, 10. pre-release link, 11. centering blocks, 12. cover half cavity plate, 13. cover half cage plates, 14. top clamping plates, 15. cores, 16. sprue bush, 17. limited blocks, 18. cores, 19. ejector sleeves, 20. cores, 21. push rods, 22. wedging cones, 23. springs, 24. hinged-supports, 25. support plates, 26. Bottom clamp plates, 27. push pedals, 28. ejector pin retaining plates, 29. bearing pins, 30. guide pillars.
The specific embodiment
Below in conjunction with accompanying drawing, the invention will be further described: impeller compression mod is shown in tool Fig. 3 and Fig. 4, trumpet assembly charging, and twice parting is broken cast gate, centering block, ejector sleeve and push rod push piece, pre-release link resets ejecting mechanism by linkage in advance.
1. running gate system and twice parting
Foundry goods is axial symmetry substantially, therefore mould adopts trumpet assembly, is conducive to evenly synchronous filling of die cavity.Mold cavity is comprised of cover half cavity plate 12, core 20 and 8 centering blocks 11.
For clout cake is extracted out from sprue bush 16, the mould structure of center ingate needs two-time parting.Somatotype for the first time, injection plunger is released sprue bush by clout cake, and limited block 17 limits somatotype distance for the first time.Somatotype is broken cast gate for the second time, and foundry goods is deviate from cover half die cavity.The die joint of somatotype is main parting line for the second time, is defined as the curved surface that 8 blades of foundry goods form.Break cast gate when guaranteeing for the first time somatotype, foundry goods is stayed on dynamic model, and cast gate pull-off force must be less than foundry goods and depart from the poor of the resistance of dynamic model and the resistance of foundry goods disengaging cover half.For this reason, ingate diameter is less than 10mm.
2. ejecting mechanism
With ejector sleeve 19 and push rod 21 push pieces.Ejection resistance is the package power to core 18 from the wheel hub of foundry goods mainly, with open-minded ejector sleeve 19, acts on foundry goods hub end, foundry goods centre bore and whole foundry goods is departed to dynamic model and play a major role, 21 push piece booster actions of 4 push rods.
With open-minded ejector sleeve 19, by ejector pin retaining plate 28, be fixed on push pedal 27, core 18 is fixed on support plate 25 by core 20.Ejector sleeve 19 and core 18 are matched in clearance.
The centering block 11 being fixedly connected with screw by pin and pendulum handle 8 use bearing pins 9 are articulated with on support plate 25.Push pedal 27 drives ejector sleeve 19, push rod 21 and push rod 6 reaches, and push rod 6 promotes centering block 11 makes it around bearing pin 9, rotate.Push piece initial time, loosening between centering block 11 and the blade of foundry goods, in after this push pedal 27, continue in reach process, ejector sleeve push piece must be synchronizeed or lag behind to centering block push piece with ejector sleeve 19 push pieces, in order to avoid damage the blade of foundry goods.This requirement guarantees by the inclined-plane (or curved surface) of the centering block 11 of appropriate design push rod 6 contacts.Push rod 6 heads are hemisphere face.
During matched moulds, the tension force that is contained in the Compress Spring 23 in support plate 25 promotes the free end centering block 11 rotation returns of pendulum handle 8, and by wedging cone 22 location.
In push, centering block 11 should be synchronizeed with push rod 21 and ejector sleeve 19 with the contact point of product, and to avoid product, because being subject to, thrust is unbalanced is out of shape.Therefore position centering block 11 drawn stems 6 being promoted is designed to curved surface.
3. pre-resetting-mechanism
As seen from Figure 4, hinged two rollers 1 in connecting rod 2 two ends, middle hinged with bearing pin 29 and fork 4 one end.Fork 4 another
One end and hinged-support 5 are hinged, and centre is connected with Bottom clamp plate elasticity by extension spring 3, and two rollers 1 on connecting rod 2 are fitted in push pedal 27 all the time.Two pre-release links 10 are equipped with in the both sides of mould, and the ramp effect by pre-release link end, in the bearing pin 29 that connects fork 4 and connecting rod 2, promotes push pedal 27 and resets in advance.In the pre-reseting procedure of push pedal 27, connecting rod 2 should move up and down and in push pedal, move horizontally again, and two hinged rollers 1 of its two ends can reduce the frictional resistance of push pedal.
4. mold work process
During die sinking, die joint I is opened, and top clamping plate 14 is separated with cover half cage plate 13, under injection punch head, clout cake is released to sprue bush 16.
When cover half cage plate 13 is encountered limited block 17, die joint I somatotype finishes, and die joint II is opened.Cover half cavity plate 12 is separated with centering block 11, and ingate is pulled off, and clout cake is separated with foundry goods, and foundry goods is deviate from cover half die cavity, stays on dynamic model.
Die sinking is to certain distance, and push rod promotes ejector sleeve 19, push rod 6 and 21 reaches by push pedal 27, and push rod 6 rotates centering block 11 simultaneously, and loosening between centering block 11 and the blade of foundry goods, ejector sleeve 19, push rod 21 push away dynamic model die cavity by foundry goods, then take out foundry goods.
During matched moulds, dynamic model reach, with cover half closure before, the side action of pre-release link 10 ends, in connecting rod 2, makes connecting rod promote push pedal 27, push pedal drives each push rod to reset.Because push rod 6 resets, centering block resets under Compress Spring 23 effects, and by wedging cone 22 location.It is closed that dynamic model continues to proceed to two moulds.
Claims (3)
1. a die casting mould for impellers, it is characterized in that adopting the combination push piece mechanism of 8 centering blocks and 1 ejector sleeve, by roller, connecting rod, extension spring, fork, hinged-support, push rod, push pedal guide pillar, pendulum handle, bearing pin, pre-release link, centering block, cover half cavity plate, cover half cage plate, top clamping plate, core, sprue bush, limited block, ejector sleeve, wedging cone, spring, support plate, Bottom clamp plate, push pedal, ejector pin retaining plate, guide pillar forms, with open-minded ejector sleeve, by ejector pin retaining plate, be fixed on push pedal, core is fixed on support plate by core, the centering block that pin is fixedly connected with screw and pendulum handle are articulated with on support plate with bearing pin, hinged two rollers in connecting rod two ends, middle hinged with bearing pin and fork one end, the other end and the hinged-support of fork are hinged, and centre is connected with Bottom clamp plate elasticity by extension spring, and two rollers on connecting rod are fitted in push pedal all the time.
2. a die casting mould for impellers, while it is characterized in that matched moulds, is contained in the free end centering block rotation return of the tension force promotion pendulum handle of the Compress Spring in support plate, and by wedging cone location.
3. a die casting mould for impellers, is characterized in that the position that centering block and drawn stem promote is designed to curved surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106040.XA CN103521736A (en) | 2013-03-29 | 2013-03-29 | Impeller die-casting die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310106040.XA CN103521736A (en) | 2013-03-29 | 2013-03-29 | Impeller die-casting die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103521736A true CN103521736A (en) | 2014-01-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310106040.XA Withdrawn CN103521736A (en) | 2013-03-29 | 2013-03-29 | Impeller die-casting die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103521736A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856674A (en) * | 2018-09-10 | 2018-11-23 | 苏州工业职业技术学院 | The big package power casing compression mod of thin-walled push-off device again |
| CN111001784A (en) * | 2019-12-10 | 2020-04-14 | 株洲凯丰实业股份有限公司 | Swirler core mould |
| CN111283168A (en) * | 2020-03-30 | 2020-06-16 | 刘勇 | Automobile parts precision manufacturing die casting die |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090274560A1 (en) * | 2005-02-22 | 2009-11-05 | Hitachi Metals Precision Ltd | Compressor impeller and method of manufacturing the same |
| CN201524792U (en) * | 2009-10-10 | 2010-07-14 | 广东文灿压铸有限公司 | Die casting mould for impellers |
| CN101912956A (en) * | 2010-08-26 | 2010-12-15 | 中国船舶重工集团公司第十二研究所 | Rotary structure mold of complicated curved-surface component and stripping/closing method thereof |
| CN203343402U (en) * | 2013-03-29 | 2013-12-18 | 洛阳洛北重工机械有限公司 | Impeller casting die |
-
2013
- 2013-03-29 CN CN201310106040.XA patent/CN103521736A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090274560A1 (en) * | 2005-02-22 | 2009-11-05 | Hitachi Metals Precision Ltd | Compressor impeller and method of manufacturing the same |
| CN201524792U (en) * | 2009-10-10 | 2010-07-14 | 广东文灿压铸有限公司 | Die casting mould for impellers |
| CN101912956A (en) * | 2010-08-26 | 2010-12-15 | 中国船舶重工集团公司第十二研究所 | Rotary structure mold of complicated curved-surface component and stripping/closing method thereof |
| CN203343402U (en) * | 2013-03-29 | 2013-12-18 | 洛阳洛北重工机械有限公司 | Impeller casting die |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108856674A (en) * | 2018-09-10 | 2018-11-23 | 苏州工业职业技术学院 | The big package power casing compression mod of thin-walled push-off device again |
| CN108856674B (en) * | 2018-09-10 | 2024-02-02 | 苏州工业职业技术学院 | Thin-wall large-packing-force casing die casting mould re-pushing device |
| CN111001784A (en) * | 2019-12-10 | 2020-04-14 | 株洲凯丰实业股份有限公司 | Swirler core mould |
| CN111001784B (en) * | 2019-12-10 | 2021-03-05 | 株洲凯丰实业股份有限公司 | Swirler core mould |
| CN111283168A (en) * | 2020-03-30 | 2020-06-16 | 刘勇 | Automobile parts precision manufacturing die casting die |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20140122 |