CN207255207U - The overlapping impeller mould of one kind production blade - Google Patents
The overlapping impeller mould of one kind production blade Download PDFInfo
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- CN207255207U CN207255207U CN201721199098.3U CN201721199098U CN207255207U CN 207255207 U CN207255207 U CN 207255207U CN 201721199098 U CN201721199098 U CN 201721199098U CN 207255207 U CN207255207 U CN 207255207U
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- loose piece
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Abstract
The utility model provides a kind of production blade overlapping impeller mould, including cover half, dynamic model, blade loose piece group and core wheel, and the sprue on cavity and cover half on dynamic model forms the casting cavity for being used for producing the overlapping impeller of blade；Core wheel is arranged in the cavity on dynamic model, and it passes through releasable connection part and dynamic model detachable connection；Blade loose piece group includes polylith blade loose piece, and blade loose piece is arranged on the cover half, it is located at the casting cavity intra vane upright projection overlapping part, its structure matches with blade.Using the technical solution of the utility model, effect is：By the design of blade loose piece, solve the problems, such as the overlapping impeller entirety parting of existing blade vertical plane, realize the overall parting of the type impeller；Core wheel is arranged on dynamic model by removable connector, solves the problems, such as that impeller core wheel is suspended vacantly in dynamic model, is made core wheel fastening, is reliably mounted on dynamic model；More traditional sand mold mould improves production efficiency and casting quality.
Description
Technical field
It the utility model is related to casting technology field, and in particular to the overlapping impeller mould of one kind production blade.
Background technology
Low pressure casting is to applying 0.01-0.05Mpa bigger than atmospheric pressure on molten metal surface in closed holding furnace
Air pressure or inert gas pressure, molten metal are risen by soaking in holding furnace with stalk, are pressed into and are connected with stove
In the mold cavity of the top, the production process of postforming casting is cooled down.
The overlapping impeller casting of existing blade vertical plane generally spells core casting technique, casting of appearance of cast matter using resin sand
Amount and the uniformity of blade angle are poor, and low production efficiency, it is difficult to realize automation.
Simplify in conclusion being badly in need of a kind of structure and low pressure can be used to keep stable quality batch production upright projection
The device of the overlapping impeller of face blade is to solve problems of the prior art.
Utility model content
The utility model aim is that providing a kind of structure simplifies and low pressure can be used to keep stable quality batch raw
The mould of the overlapping impeller of vertical plane blade is produced, concrete technical scheme is as follows：
The overlapping impeller mould of one kind production blade, including cover half, dynamic model, blade loose piece group and core wheel；
Sprue on cavity and the cover half on the dynamic model forms the casting type for being used for producing the overlapping impeller of blade
Chamber；
The core wheel is arranged in the cavity on the dynamic model, and it is detachable by releasable connection part and the dynamic model
Connection；
The blade loose piece group includes polylith blade loose piece, and the blade loose piece is arranged on the cover half, it is located at institute
Casting cavity intra vane upright projection overlapping part is stated, its structure matches with blade.
Preferable in above technical scheme, the cover half is equipped with the multiple convexes for being used for installing the blade loose piece
Rise, the blade loose piece is equipped with the positioning groove to match with the positioning protrusion；Either, the cover half is equipped with and is used for
Multiple positioning grooves of the blade loose piece are installed, the blade loose piece is equipped with the convex to match with the positioning groove
Rise；
The thickness of the blade loose piece is 20mm, its pattern draft is 3 °；
The releasable connection part includes screw rod, and the first end of the screw rod is fixed on the dynamic model, institute by fixed component
State the second end end that core wheel is arranged on the screw rod with central axis.
Preferable in above technical scheme, the second end end of the screw rod is equipped with external screw thread, the core wheel equipped with
The internal thread hole that the external screw thread matches；
On the core wheel and the positioning convex platform structure being mutually matched is equipped with the dynamic model, prevents core wheel from deviateing；
The fixed component is nut.
Preferable in above technical scheme, the releasable connection part further includes screw rod protective sleeve, the screw rod protective sleeve set
It is located in the first end of the screw rod, for protecting screw rod not to be damaged in installation process.
Preferable in above technical scheme, the end of the core wheel is equipped with spreader, on the spreader and the cover half
The corresponding setting of sprue.
It is preferable in above technical scheme, casting ejecting mechanism is further included, the casting ejecting mechanism includes top template, leads
To component and mandril group, the dynamic model, which is equipped with, connects the cavity and multiple passages for ejecting casting；
The top template and the dynamic model are set up in parallel with central axis, and the adjustable connection top of the guidance set
Template and the dynamic model；The mandril group includes more mandrils, and the first end of the mandril is fixed on the top template, it
Two ends are inserted into the passage, and the end of the mandril and the inner wall of the cavity and the passage junction are mutually neat when pouring
It is flat.
Preferable in above technical scheme, the guidance set includes multigroup guiding single-piece, and the guiding single-piece includes leading
Column and guide sleeve, the upper end of the guide post are fixed on the top template, and the lower end of the guide sleeve is fixed on the dynamic model, described
The upper end internal activity that the guide sleeve is inserted into the lower end of guide post is set；
Either, the lower end of the guide post is fixed on the dynamic model, and the upper end of the guide sleeve is fixed on the top template
On, the lower end internal activity setting of the guide sleeve is inserted into the upper end of the guide post.
Preferable in above technical scheme, the dynamic model is equipped with the multiple guiding roads being arranged in parallel with the passage, institute
Stating guidance set includes more guide rods, and the upper end of the guide rod is fixed on the top template, is led described in the insertion of its lower end
Into road, activity is set, and can provide guiding role for the movement between the top template and the dynamic model.
Preferable in above technical scheme, multigroup guiding single-piece and multiple guide rods are respectively with the screw rod
Centered on annular it is uniformly distributed.
Preferable in above technical scheme, the cover half is equipped with the multiple positioning convex platforms for being used for positioning the dynamic model, institute
Dynamic model is stated to be equipped with and the one-to-one locating groove of the positioning convex platform；
Multiple installation U-lags to match with casting machine are equipped with the cover half and the dynamic model and for strengthening tying
The stiffener plate of structure intensity.
Using the technical solution of the utility model, have the advantages that：
(1) the overlapping impeller of production blade of the utility model includes cover half, dynamic model, blade loose piece group and wheel with mould
Core, the sprue on cavity and the cover half on the dynamic model form the casting cavity for being used for producing the overlapping impeller of blade；Institute
State in the cavity that core wheel is arranged on the dynamic model, and it passes through releasable connection part and the dynamic model detachable connection；It is described
Blade loose piece group includes polylith blade loose piece, and the blade loose piece is arranged on the cover half, it is located in the casting cavity
Blade upright projection overlapping part, its structure match with blade.By the design of blade loose piece, it is vertical to solve existing blade
The problem of overlapping impeller entirety parting in perspective plane, realize the overall parting of the type impeller；Core wheel is set by removable connector
On dynamic model, solve the problems, such as that impeller core wheel is suspended vacantly in dynamic model, make core wheel fastening, be reliably mounted on dynamic model；Compared with
Traditional sand mold mould improves production efficiency and casting quality.
(2) cover half and blade loose piece are installed and determined by the combination of positioning protrusion and positioning groove in the utility model
Position, it is easy to use；The thickness of blade loose piece is 20mm, its pattern draft is 3 °, easy to make casting and easy to demould；Removable company
Fitting includes screw rod, is arranged on core wheel is detachable by screw rod on dynamic model, easy to operation.
(3) the second end end of screw rod is equipped with external screw thread in the utility model, and the core wheel is equipped with and the external screw thread
The internal thread hole to match, it is easy for installation；On core wheel and the positioning convex platform structure being mutually matched is equipped with the dynamic model, is prevented
Core wheel deviates；Fixed component is nut, installs and is fixed conveniently.
(4) releasable connection part further includes screw rod protective sleeve in the utility model, and the screw rod protective sleeve is set in the spiral shell
In the first end of bar, for protecting screw rod not to be damaged in installation process.
(5) end of core wheel described in the utility model is equipped with spreader, the spreader and the sprue on the cover half
Corresponding setting, spreader and sprue use appropriate sectional area ratio, ensure to place generation turbulent flow during aluminum liquid filling type,
Casting is avoided to produce gas hole defect.
(6) the utility model also includes casting ejecting mechanism, easy to take out casting；Casting ejecting mechanism include top template,
Guidance set and mandril group, structure are simplified, and can meet that ejection is required and conveniently operated.
(7) dynamic model is equipped with the multiple guiding roads being arranged in parallel with the passage, the guidance set in the utility model
Including more guide rods, using the combination in guide rod and guiding road, it is ensured that guiding role can be functioned well as.
(8) in the utility model multigroup guiding single-piece and multiple guide rods respectively centered on the screw rod
Annular is uniformly distributed so that the uniform force such as mould, casting.
(9) cover half is equipped with the multiple positioning convex platforms for being used for positioning the dynamic model in the utility model, is set on the dynamic model
Have with the one-to-one locating groove of the positioning convex platform, easy to the positioning and fixation of dynamic model and cover half；On fixed half and moving half also
Equipped with installation U-lag, it is fixed respectively with casting machine for fixed half and moving half；Stiffener plate is additionally provided with fixed half and moving half,
For strengthening the structural strength of mould.
In addition to objects, features and advantages described above, the utility model also has other purposes, feature and excellent
Point.Below with reference to figure, the utility model is described in further detail.
Brief description of the drawings
The attached drawing for forming the part of the application is used to provide a further understanding of the present invention, the utility model
Schematic description and description is used to explain the utility model, does not form the improper restriction to the utility model.In attached drawing
In：
Fig. 1 is the dimensional structure diagram that the overlapping impeller mould of blade is produced in embodiment 1；
Fig. 2 is the sectional view of Fig. 1；
Wherein, 1, cover half, 1.1, sprue, 1.2, positioning convex platform, 2, dynamic model, 2.1, cavity, 2.2, locating groove, 3,
Blade loose piece group, 3.1, blade loose piece, 4, core wheel, 4.1, spreader, 5, casting cavity, 6, releasable connection part, 6.1, screw rod,
6.2nd, screw rod protective sleeve, 7, casting ejecting mechanism, 7.1, top template, 7.2, guidance set, 7.21, guide rod, 7.3, mandril group,
7.31st, mandril, 8, installation U-lag, 9, stiffener plate.
Embodiment
The embodiment of the utility model is described in detail below in conjunction with attached drawing, but the utility model can be according to power
Profit requires to limit and the multitude of different ways of covering is implemented.
Embodiment 1：
The overlapping impeller mould of one kind production blade, referring to Fig. 1 and Fig. 2, specifically includes cover half 1, dynamic model 2, blade loose piece
Group 3, core wheel 4 and casting ejecting mechanism 7, Details as Follows：
Cavity 2.1 on the dynamic model 2 is formed with the sprue 1.1 on the cover half 1 is used to producing the overlapping impeller of blade
Casting cavity 5.The core wheel 4 is arranged in the cavity 2.1 on the dynamic model 2, and it is moved by releasable connection part 6 with described
2 detachable connection of mould (i.e. core wheel is suspended in cavity and sets).The blade loose piece group 3 includes 3.1 (leaf of polylith blade loose piece
The quantity of piece loose piece is corresponding according to the blade of impeller, i.e., the overlapping position of two panels blade is corresponding sets one piece of blade loose piece),
The blade loose piece 3.1 is arranged on the cover half 1, it is located at the 5 intra vane upright projection overlapping part of casting cavity, its
Structure matches (i.e. with blade：The surface area that blade loose piece is located at the equitant side of blade upright projection is vertical with blade
It is identical to project overlapping area).Cover half effect mainly makes casting cavity running gate system be connected with sealed thermal insulating stove by stalk.
The specific set-up mode of blade loose piece is：The cover half 1, which is equipped with, to be used to install the multiple of the blade loose piece 3.1
Positioning protrusion (optional rectangular preiection), the blade loose piece 3.1 is equipped with the positioning groove to match with the positioning protrusion (can
Select rectangular recess), it can realize loose piece precisely installation and positioning.Another mode can also be used：The cover half 1 is equipped with
For installing multiple positioning grooves of the blade loose piece 3.1, the blade loose piece 3.1 is equipped with and the positioning groove phase
The positioning protrusion matched somebody with somebody.The thickness of the blade loose piece 3.1 is 20mm, its pattern draft is 3 °.
The releasable connection part 6 includes screw rod 6.1 and screw rod protective sleeve 6.2, and the first end of the screw rod 6.1 passes through admittedly
Determine component (preferred nut herein) and be fixed on the dynamic model 2, the core wheel 4 is arranged on the of the screw rod 6.1 with central axis
Two ends end, specific set-up mode are：The second end end of the screw rod 6.1 (preferably M12 fastening screws) is equipped with external screw thread, institute
State core wheel 4 and be equipped with the internal thread hole (preferably M12 threaded holes) to match with the external screw thread.It is on the core wheel 4 and described dynamic
Be equipped with mould 2 be mutually matched positioning convex platform structure (can use specification forCylinder), prevent core wheel
Deviate.The screw rod protective sleeve 6.2 is set in the first end of the screw rod 6.1, for protect screw rod in installation process not
It is damaged.The end of the core wheel 4 is equipped with spreader 4.1, the spreader 4.1 and 1.1 phase of sprue on the cover half 1
It is correspondingly arranged, spreader and sprue use appropriate sectional area ratio, ensure to place generation turbulent flow during aluminum liquid filling type, keep away
Exempt from casting and produce gas hole defect.
The casting ejecting mechanism 7 includes top template 7.1, guidance set 7.2 and mandril group 7.3, is set on the dynamic model 2
Have and connect the cavity 2.1 and multiple passages for ejecting casting；2 same central axis of the top template 7.1 and the dynamic model
It is set up in parallel, and the adjustable connection of the guidance set 7.2 top template 7.1 and the dynamic model 2, can be to 7.1 court of top template
It is oriented to 2 direction of motion of dynamic model；The mandril group 7.3 includes more mandrils 7.31 (preferably：Set 8's
Mandril is arranged in blade top surface periphery, and mandril is used with casting contact surface and processed with type, avoids liftout process unbalance stress from causing
Blade fleshiness；Set 6Mandril be located at around impeller hub, realize that impeller stress in ejection process is demoulded is equal
It is even), the first end of the mandril 7.31 is fixed on the top template 7.1, its second end is inserted into the passage, institute when pouring
State the end of mandril 7.31 to be flush with the inner wall of the cavity 2.1 and the passage junction, do not influence the shape of casting.Top
Stencil design is hexagon, and to ensure to cover all mandril positions, and mounting hole (being passed through for screw rod) and boss are left in centre
(being used to screw rod protective sleeve set), ensure that the core wheel can be installed on dynamic model by top template.The guidance set 7.2
Structure species are various, such as：
Preferable multigroup guiding single-piece, the guiding single-piece include guide pillars and bushes, and the upper end of the guide post is fixed on institute
State on top template 7.1, the lower end of the guide sleeve is fixed on the dynamic model 2, and the upper of the guide sleeve is inserted into the lower end of the guide post
Internal activity is held to set；Either, the lower end of the guide post is fixed on the dynamic model 2, and the upper end of the guide sleeve is fixed on institute
State on top template 7.1, the lower end internal activity setting of the guide sleeve is inserted into the upper end of the guide post.
More guide rods 7.21 (preferably 6 herein can also be usedGuide rod, in mould open/close and closing
During guiding role), need on such a mode dynamic model 2 to be equipped with the multiple guiding roads being arranged in parallel with the passage, it is described to lead
Be fixed on to the upper end of bar 7.21 on the top template 7.1, its lower end insertion it is described guiding road in activity set, can adjust described in
The distance between top template 7.1 and the dynamic model 2.Preferably, multigroup guiding single-piece and multiple guide rods 7.21 are respectively with spiral shell
Annular is uniformly distributed centered on bar 6.1, and the quantity of guiding single-piece and mandril, which is subject to, can smoothly eject casting.
The cover half 1 is equipped with (the preferably two semi-circular positioning of multiple positioning convex platforms 1.2 for being used for positioning the dynamic model 2
Boss, realizes the molding of active and inactive mold and molds positioning and the guiding role of process for assembling positioning pin), set on the dynamic model 2
Have with the one-to-one locating groove 2.2 of the positioning convex platform 1.2, the group number of the combination of positioning convex platform and locating groove can root
Selected according to actual conditions, annular is uniformly distributed preferably centered on screw rod 6.1.
Multiple installation U-lags 8 to match with casting machine are equipped with the cover half 1 and the dynamic model 2, and (preferably 8, pacify
Dress U-lag is fixed on air injection machine lower plate and upper plate by fastening bolt) and reinforcement for reinforcement structure intensity
Gusset 9 (the preferred 20mm of thickness of stiffener plate).
Mould minimal design wall thickness 30mm, ensures that mould has certain thermal diffusivity；Blade part position mould wall thickness suitably thickeies,
Improve blade heat-insulating property.
Using the mould of the present embodiment, it is specifically：
Before cast：The blade loose piece 3.1 is installed on cover half 1；Core wheel 4 is fastened by screw rod 6.1 through top template 7.1
It is installed on dynamic model 2；The sprue 1.1 of cover half 1 is aligned and is bonded liquid-lifting tube of low pressure foundry mouth, the cover half 1 and described dynamic
Mould 2 aligns die location by positioning convex platform 1.2 and locating groove 2.2, and by installing the combination of U-type groove 8 and fastening bolt
It is individually fixed on air injection machine lower plate and upper plate, air injection machine upper plate is run downwards, by dynamic model 2 and cover half 1
Molded.
In casting process：Molten aluminum is entered by sprue 1.1 fills type in casting cavity 5 and cools down.
After casting complete：Air injection machine upper plate drives the dynamic model 2 to prolong the guide rod 7.21 and moves upwards, dynamic model
2 separate with cover half 1；Dynamic model 2 drives casting to move up to the top template 7.1 and air injection machine upper end with blade loose piece
Template is contacted and compressed, and top template 7.1 continues to drive mandril 7.31 to move downward ejection casting so that casting and blade loose piece are same
When move downward；After casting is ejected, blade loose piece is dismantled, up to casting；Complete single operation.
The present embodiment solves the problems, such as the overlapping impeller entirety parting of existing blade vertical plane, realizes the type impeller
Overall parting, solves the problems, such as that impeller core wheel is suspended vacantly in dynamic model, makes core wheel fastening, is reliably mounted on dynamic model.This
The more traditional sand mold mould of utility model mould improves production efficiency and casting quality.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the present invention, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. the overlapping impeller mould of one kind production blade, it is characterised in that including cover half (1), dynamic model (2), blade loose piece group (3)
And core wheel (4)；
Sprue (1.1) on cavity (2.1) and the cover half (1) on the dynamic model (2) forms overlapping for producing blade
The casting cavity (5) of impeller；
The core wheel (4) is arranged on the cavity (2.1) on the dynamic model (2) Nei, and it is moved by releasable connection part (6) with described
Mould (2) detachable connection；
The blade loose piece group (3) includes polylith blade loose piece (3.1), and the blade loose piece (3.1) is arranged on the cover half (1)
On, it is located at casting cavity (5) the intra vane upright projection overlapping part, its structure matches with blade.
2. according to claim 1 produce the overlapping impeller mould of blade, it is characterised in that the cover half (1) is equipped with
For installing multiple positioning protrusion of the blade loose piece (3.1), the blade loose piece (3.1) is equipped with and the positioning protrusion
The positioning groove to match；Either, the cover half (1) is equipped with the multiple positioning for being used for installing the blade loose piece (3.1)
Groove, the blade loose piece (3.1) are equipped with the positioning protrusion to match with the positioning groove；
The thickness of the blade loose piece (3.1) is 20mm, its pattern draft is 3 °；
The releasable connection part (6) includes screw rod (6.1), and the first end of the screw rod (6.1) is fixed on institute by fixed component
Dynamic model (2) is stated, the core wheel (4) is arranged on the second end end of the screw rod (6.1) with central axis.
3. the overlapping impeller mould of production blade according to claim 2, it is characterised in that the of the screw rod (6.1)
Two ends end are equipped with external screw thread, and the core wheel (4) is equipped with the internal thread hole to match with the external screw thread；
On the core wheel (4) and the positioning convex platform structure being mutually matched is equipped with the dynamic model (2), prevents core wheel from deviateing；
The fixed component is nut.
4. according to claim 3 produce the overlapping impeller mould of blade, it is characterised in that the releasable connection part (6)
Screw rod protective sleeve (6.2) is further included, the screw rod protective sleeve (6.2) is set in the first end of the screw rod (6.1), for protecting
Shield screw rod is not damaged in installation process.
5. according to claim 2 produce the overlapping impeller mould of blade, it is characterised in that the end of the core wheel (4)
Equipped with spreader (4.1), the spreader (4.1) setting corresponding with the sprue (1.1) on the cover half (1).
6. the overlapping impeller mould of production blade according to claim 2-5 any one, it is characterised in that further include casting
Part ejecting mechanism (7), the casting ejecting mechanism (7) include top template (7.1), guidance set (7.2) and mandril group
(7.3), the dynamic model (2), which is equipped with, connects the cavity (2.1) and multiple passages for ejecting casting；
The top template (7.1) and the dynamic model (2) are set up in parallel with central axis, and the guidance set (7.2) is adjustable
Connect the top template (7.1) and the dynamic model (2)；The mandril group (7.3) includes more mandrils (7.31), the mandril
(7.31) first end is fixed on the top template (7.1), its second end is inserted into the passage, mandril when pouring
(7.31) end is flush with the inner wall of the cavity (2.1) and the passage junction.
7. according to claim 6 produce the overlapping impeller mould of blade, it is characterised in that the guidance set (7.2)
Including multigroup guiding single-piece, the guiding single-piece includes guide pillars and bushes, and the upper end of the guide post is fixed on the top template
(7.1) on, the lower end of the guide sleeve is fixed on the dynamic model (2), and the lower end of the guide post is inserted into the upper end of the guide sleeve
Portion's activity is set；
Either, the lower end of the guide post is fixed on the dynamic model (2), and the upper end of the guide sleeve is fixed on the top template
(7.1) on, the lower end internal activity setting of the guide sleeve is inserted into the upper end of the guide post.
8. according to claim 7 produce the overlapping impeller mould of blade, it is characterised in that the dynamic model (2) is equipped with
The multiple guiding roads being arranged in parallel with the passage, the guidance set (7.2) include more guide rods (7.21), the guiding
The upper end of bar (7.21) is fixed on the top template (7.1), activity setting in its lower end insertion guiding road.
9. the overlapping impeller mould of production blade according to claim 8, it is characterised in that multigroup guiding single-piece and
Respectively annular is uniformly distributed centered on the screw rod (6.1) for multiple guide rods (7.21).
10. according to claim 6 produce the overlapping impeller mould of blade, it is characterised in that the cover half (1) is equipped with
For positioning multiple positioning convex platforms (1.2) of the dynamic model (2), the dynamic model (2) is equipped with and the positioning convex platform (1.2) one
One corresponding locating groove (2.2)；
Multiple installation U-lags (8) to match with casting machine are equipped with the cover half (1) and the dynamic model (2) and are used for
The stiffener plate (9) of reinforcement structure intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721199098.3U CN207255207U (en) | 2017-09-19 | 2017-09-19 | The overlapping impeller mould of one kind production blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721199098.3U CN207255207U (en) | 2017-09-19 | 2017-09-19 | The overlapping impeller mould of one kind production blade |
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| Publication Number | Publication Date |
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| CN207255207U true CN207255207U (en) | 2018-04-20 |
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ID=61921206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201721199098.3U Active CN207255207U (en) | 2017-09-19 | 2017-09-19 | The overlapping impeller mould of one kind production blade |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128030A (en) * | 2018-10-30 | 2019-01-04 | 禹州市昆仑模具有限公司 | A kind of four hole nut precoated sand molds |
| WO2019214316A1 (en) * | 2018-05-10 | 2019-11-14 | 广州市型腔模具制造有限公司 | Cavity mould capable of being precisely positioned |
| CN110524474A (en) * | 2019-07-17 | 2019-12-03 | 宁波市三羊机电制造有限公司 | A kind of guide wheel installation mold |
-
2017
- 2017-09-19 CN CN201721199098.3U patent/CN207255207U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214316A1 (en) * | 2018-05-10 | 2019-11-14 | 广州市型腔模具制造有限公司 | Cavity mould capable of being precisely positioned |
| CN109128030A (en) * | 2018-10-30 | 2019-01-04 | 禹州市昆仑模具有限公司 | A kind of four hole nut precoated sand molds |
| CN110524474A (en) * | 2019-07-17 | 2019-12-03 | 宁波市三羊机电制造有限公司 | A kind of guide wheel installation mold |
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