CN208162563U - For the molding casting mould of water pump vane - Google Patents
For the molding casting mould of water pump vane Download PDFInfo
- Publication number
- CN208162563U CN208162563U CN201820622906.0U CN201820622906U CN208162563U CN 208162563 U CN208162563 U CN 208162563U CN 201820622906 U CN201820622906 U CN 201820622906U CN 208162563 U CN208162563 U CN 208162563U
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- half module
- locking block
- arc
- rotating bar
- shaped cavity
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Abstract
The utility model discloses one kind to be used for the molding casting mould of water pump vane, it is related to water pump manufacturing machine apparatus field, including left half module and right half module, and the arc-shaped cavity opened up inside it, expanded by heating part is equipped in arc-shaped cavity, the rotating bar that can be put in arc-shaped cavity is equipped between left half module and right half module, the both ends of rotating bar are affixed with expanded by heating part；The top of left half module is equipped with left locking block, the top of right half module is equipped with right locking block, strip groove is offered in left locking block and right locking block, the left rack gear for putting in right locking block inner stripe slot is removably connected on left locking block, the right rack gear for putting in left locking block inner stripe slot is removably connected on right locking block, the top of rotating bar is connected with and left rack gear and right rack gear meshed gears.The utility model solves the problems, such as to influence Impeller Shaping because the type chamber of expanded by heating can squeeze due to two half modules expand outwardly, be mainly used for the molding casting of water pump vane.
Description
Technical field
The utility model relates to water pump manufacturing machine apparatus fields, in particular to a kind of to be used for the molding casting of water pump vane
Mold.
Background technique
Water pump is the machinery for conveying liquid or being pressurized liquid.Currently, one is vacuum there are mainly two types of well known water pumps
Formula water pump, one is immersible pumps.Either which kind of water pump is all mainly made of the pump housing, pump cover and impeller, wherein rising decisive
Effect is impeller.Water pump vane material is generally cast iron and cast steel, and traditional approach generallys use sand casting process or fusible pattern
Casting technique, sand casting process therein generally comprise core box preparation, with sand molding, the preheating of type chamber, casting, open form, sand removal
Etc. processes.Wherein pouring temperature is 1430-1450 DEG C, and the duration of pouring is 6-10 seconds；6-8 minutes open forms after being cast, open form
After be directly entered annealing furnace (heat preservation 0.5-1.5 hours, come out of the stove after being furnace-cooled to 600-625 degrees Celsius air-cooled).
But during Impeller Machining, easily lead to that cast structure is loose, and foundary loss rate is higher.
To solve the above problems, Chinese patent CN201913192U discloses a kind of water pump vane metal gravity type casting mould
Have, including lower die, sand core column, sand core, sand core column is equipped at the lower die center, the top of the sand core column is equipped with therewith
The sand core matched, the sand core top are equipped with upper mold, and upper mold is made of two and half templates, and two and half templates constitute Hough pair
Claim；The upper mold and lower die is equipped with the groove cooperated with sand core, and running channel is equipped in the groove, is set in the upper mold
There are the several riser for leading to groove, the upper mold upper surface Feed ring edge is equipped with insulating layer.
Above-mentioned patent formula keeps cast structure fine and close by gravity, although solving the problems, such as that cast structure is loose,
But still have following problems：Upper mold is made of two and half templates, when two half module pairings, during pouring, by
Very high in the intracavitary temperature of type, type chamber can generate expansion, and the type chamber of expansion can squeeze two half modules and expand outwardly, and lead to half module
Between generate gap influence impeller molding.
Utility model content
The utility model is intended to provide one kind for the molding casting mould of water pump vane, to solve the type because of expanded by heating
Chamber can squeeze the problem of two half modules expand outwardly and influence Impeller Shaping.
In order to solve the above technical problems, base case provided by the utility model is as follows：
For the molding casting mould of water pump vane, including lower die, sand core column, sand core, it is equipped with sand core column at lower die center,
The top of sand core column is equipped with sand core with matching, is equipped with upper mold above sand core, upper mold includes into Hough symmetrically left half module
With right half module, the groove with sand core cooperation is offered in left half module, right half module and lower die, the upper die and lower die can be enclosed
For molding type chamber, lower die bottom offers the running channel of communication groove；It further include for pushing against supporting for left half module and right half module
Tight device；
Arc-shaped cavity is offered in the left half module and right half module, one end of arc-shaped cavity is equipped with expanded by heating part, left
Rotating bar is equipped between half module and right half module, one end of rotating bar can be put in the arc-shaped cavity of left half module, and the other end can be put in
In the arc-shaped cavity of right half module, the both ends of the rotating bar are affixed with the expanded by heating part；
The top of the left half module is equipped with left locking block, and the top of right half module is equipped with right locking block, left locking block and right lock
It connects and offers strip groove in block, the left rack gear that can put in right locking block inner stripe slot is removably connected on left locking block, it is right
The right rack gear that can put in left locking block inner stripe slot is removably connected on locking block, the top of rotating bar is connected with and left rack gear
With right rack gear meshed gears；
The inner cavity that can be connected to the type chamber is offered in the left half module, inner cavity is unidirectional equipped with air inlet with type chamber junction
Valve and outgassing nonreturn valve are communicated with channel between inner cavity and the arc-shaped cavity of left half module, being slidingly sealed in channel can be with outlet
The mobile bar of check valve fitting, one end of mobile bar puts in described interior intracavitary, and the other end is affixed with rotating bar, and mobile bar puts in interior
The side of chamber offers through-hole, and mobile bar, which offers, is equipped with elastic component between one end of through-hole and bottom wall of inner cavity, the through-hole can
It is aligned or is staggered with outgassing nonreturn valve.
The working principle of base case：After lower die, sand core column, sand core combination, then will be after left half module and right half module pairing
It is pressed in lower die, the both ends of rotating bar is put in the arc-shaped cavity of left half module and right half module, recycle abutting device will be left
Half module and right half module push against.By the running channel of lower die bottom to the intracavitary penetrating liquid metal of type, due to inner cavity and type chamber junction
Equipped with breather check valve, under the action of the liquid metal of penetrating, the intracavitary gas of type is discharged into inner cavity, avoids gas
To impacting during pump vane casting, to reduce the defects of there are stomata, shrinkage cavity and shrinkage porosites after Impeller Shaping.
During being poured, the high temperature in the intracavitary portion of type is passed in arc-shaped cavity by left half module and right half module
Expanded by heating part, the rotation of expanded by heating part expanded by heating pusher turn lever, the rotation of rotating bar will drive left half module and right half
Mould is close, to offset the extruding force that a part of left half module and right half module can be expanded outwardly by high temperature；At the same time, rotating bar is again
The gear rotation affixed with it is driven, since the top of left half module is equipped with left locking block, the top of right half module is equipped with right locking block,
Strip groove is offered in left locking block and right locking block, right locking block inner stripe can be put in by being removably connected on left locking block
The left rack gear of slot is removably connected with the right rack gear that can put in left locking block inner stripe slot, the rotation band of gear on right locking block
It moves left rack gear to continue to put in the strip groove on right locking block, while right rack gear being driven to continue the strip groove put on left locking block
It is interior, so that the rotation of gear will pull left half module and right half module further towards further offsetting left half module and right half module because of height
The extruding force that temperature expands outwardly.
During rotating bar rotation, affixed mobile bar is under the drive of rotating bar towards separate inner cavity with rotating bar
Direction is mobile, and when casting complete needs open type chamber for a period of time, in the process, expanded by heating part can be heated and swollen always
Swollen, mobile bar is mobile towards the direction far from inner cavity always, until until the outgassing nonreturn valve that is plugged at this time and in mobile bar
Through-hole alignment, the gas for storing in the cavity flow back into that type is intracavitary by outgassing nonreturn valve, with the intracavitary outer pressure difference of offset-type,
It is easy to open type chamber.
Then left half module and right half module are unclamped by pushing against device, the intracavitary temperature of type reduces at this time, expanded by heating part root
It is shunk according to thermal expansion and contraction principle, the motive force that rotating bar loses expanded by heating part restores state free to rotate, rotating bar band
Moving gear reversion, left rack gear and right rack gear are exited along the direction far from strip groove, and open form can be realized.
Base case has the beneficial effect that：
1, compared with existing pump vane casting mold, the utility model according to the thermal expansion and contraction principle of expanded by heating part, by
Thermal expansion part absorbs heat in casting process expands the rotating forward of pusher turn lever, passes through and drives left rack gear with the affixed gear of rotating bar
It puts in right locking block, right rack gear is driven to put in left locking block, realize the close of left half module and right half module, it is intracavitary with counteracting type
The high temperature active force that expands outwardly left half module and right half module.
2, when being passed through liquid metal to type is intracavitary, remain in the intracavitary gas of type and be discharged into the inner cavity of left half module, with
Expanded by heating part drive rotating bar rotate forward, affixed movement is gradually distance from inner cavity with rotating bar, until in mobile bar through-hole with
Outgassing nonreturn valve alignment, into type chamber, the intracavitary outer pressure difference of offset-type avoids type chamber because in for the gas backstreaming in inner cavity at this time
Outer pressure difference is too greatly without being easily opened.
Further, the rotating bar upper and lower surfaces are contacted with the inner wall of arc-shaped cavity respectively.
Rotating bar upper and lower surfaces are contacted with the inner wall of arc-shaped cavity respectively, arc-shaped cavity limit rotating bar towards hang down
It is directly mobile in the direction of lower die, rotating bar can only arcuately cavity circumferential movement, avoid rotating bar from arbitrarily swinging left to pushing against
Half module and right half module impact.
Further, blind hole is equipped between the arc-shaped cavity and type chamber, one end of blind hole is connected to arc-shaped cavity, the other end
Close to the type chamber, the expanded by heating part is put in the blind hole far from one end of arc-shaped cavity.
Using the above structure, expanded by heating part is located at one end in blind hole with type chamber close to so as to absorb more
Heat.
Further, the expanded by heating part is air bag resistant to high temperature.
Using air bag resistant to high temperature, air bag expanded by heating obtains bigger, can more rotating bar be pushed rapidly to rotate.
Further, the abutting device is cylinder.
Cylinder can be realized the abutting to left half module and right half module, and cylinder is at low cost.
Further, the elastic component is spring.
When rotating bar is mobile far from inner cavity, spring is in tensional state；When rotating bar is mobile close to inner cavity, spring by
Gradually restore to original position, and the supporting role to mobile bar can be played.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the utility model is used for the molding casting mould embodiment of water pump vane；
Fig. 2 is the top view that the utility model shown in Fig. 1 is used for the molding casting mould embodiment of water pump vane.
Specific embodiment
It is further described below by specific embodiment：
Appended drawing reference in Figure of description includes：Lower die 1, sand core column 2, sand core 3, left half module 4, right half module 5, groove 6,
Type chamber 7, arc-shaped cavity 8, expanded by heating part 9, rotating bar 10, left locking block 11, right locking block 12, strip groove 13, left rack gear 14,
Gear 15, inner cavity 16, breather check valve 17, outgassing nonreturn valve 18, channel 19, mobile bar 20, through-hole 21, right rack gear 22.
As shown in Figure 1, the utility model is used for the molding casting mould of water pump vane, including lower die 1, sand core column 2, sand core
3, sand core column 2 is equipped at 1 center of lower die, the top of sand core column 2 is equipped with sand core 3 with matching, is equipped with above sand core 3 upper
Mould, upper mold include into Hough symmetrically left half module 4 and right half module 5, offer and sand core 3 in left half module 4, right half module 5 and lower die 1
The groove 6 of cooperation, upper die and lower die 1 can be enclosed for molding type chamber 7, and 1 bottom of lower die offers pouring for communication groove 6
Road；It further include the abutting device for pushing against left half module 4 and right half module 5, the abutting device in the present embodiment is cylinder (in attached drawing
It is not shown)；
As shown in Fig. 2, offering arc-shaped cavity 8 in left half module 4 and right half module 5, one end of arc-shaped cavity 8 is equipped with heated
Expansion piece 9, the expanded by heating part 9 in the present embodiment are air bag resistant to high temperature, and strip is equipped between left half module 4 and right half module 5
Rotating bar 10, one end of rotating bar 10 can put in the arc-shaped cavity 8 of left half module 4, and the other end can put in the arc of right half module 5
In cavity 8,10 upper and lower surfaces of rotating bar are contacted with the inner wall of arc-shaped cavity 8 respectively, the both ends of rotating bar 10 with by
Part 9 is thermally expanded to be bonded；Blind hole is equipped between arc-shaped cavity 8 and type chamber 7, one end of blind hole is connected to arc-shaped cavity 8, and the other end is tight
Adjacent type chamber 7, expanded by heating part 9 are put in blind hole far from one end of arc-shaped cavity 8；
As shown in Fig. 2, the top of left half module 4 is equipped with left locking block 11, the top of right half module 5 is equipped with right locking block 12, left
Strip groove 13 is offered in locking block 11 and right locking block 12, right locking block can be put in by being removably connected on left locking block 11
The left rack gear 14 of 12 inner stripe slots 13 is removably connected with the right side that can put in left 11 inner stripe slot 13 of locking block on right locking block 12
Rack gear 22 is detachably connected the mode being connected by screw bolts in this implementation, specifically, as shown in Fig. 2, the left end of left rack gear 14
It puts in left locking block 11, bolt is put in left rack gear 14 by left locking block 11, realizes the fixation to left rack gear 14；Right rack gear
22 right end is put in right locking block 12, and bolt is put in right rack gear 22 by right locking block 12, realizes consolidating to right rack gear 22
It is fixed；Left rack gear 14 and right rack gear 22 can slide in the strip groove 13 in left locking block 11 and right locking block 12, rotating bar 10
Top be welded with and 22 meshed gears 15 of left rack gear 14 and right rack gear；
As shown in Fig. 2, offering the inner cavity 16 that can be connected to type chamber 7 in left half module 4, inner cavity 16 is set with 7 junction of type chamber
There are breather check valve 17 and outgassing nonreturn valve 18, is communicated with channel 19, channel between inner cavity 16 and the arc-shaped cavity 8 of left half module 4
The mobile bar 20 that can be bonded with outgassing nonreturn valve 18 is slidingly sealed in 19, one end of mobile bar 20 is put in the inner cavity 16,
The other end and rotating bar 10 are affixed, and the side that mobile bar 20 puts in inner cavity 16 offers through-hole 21, and mobile bar 20 offers through-hole
Elastic component is equipped between 21 16 bottom wall of one end and inner cavity, the elastic component in the present embodiment is spring, and through-hole 21 can be with outlet list
It is aligned or is staggered to valve 18.
This is in the course of work of the molding casting mould of water pump vane：
After combining lower die 1, sand core column 2, sand core 3, then it will be pressed in lower die 1 after 5 pairing of left half module 4 and right half module, it will
The both ends of rotating bar 10 are put in the arc-shaped cavity 8 of left half module 4 and right half module 5, are recycled and are pushed against device for left half module 4 and the right side
Half module 5 pushes against.Liquid metal is sprayed into type chamber 7 by the running channel of 1 bottom of lower die, since inner cavity 16 and 7 junction of type chamber are set
There is breather check valve 17, under the action of the liquid metal of penetrating, the gas in type chamber 7 is discharged into inner cavity 16, is avoided
Gas is to impacting during pump vane casting, to reduce the defects of there are stomata, shrinkage cavity and shrinkage porosites after Impeller Shaping.
During being poured, the high temperature inside type chamber 7 passes to arc-shaped cavity 8 by left half module 4 and right half module 5
Interior expanded by heating part 9, expanded by heating part 9 are located at one end in blind hole with type chamber 7 close to so as to absorb more heat
Amount, 9 expanded by heating pusher turn lever 10 of expanded by heating part rotation, 10 upper and lower surfaces of rotating bar respectively with arc-shaped cavity
8 inner wall contact, arc-shaped cavity 8 limit rotating bar 10 and move along the vertical direction, and rotating bar 10 can only move in the horizontal direction,
The horizontally rotating of rotating bar 10 will drive left half module 4 and right half module 5 is close, thus offset a part of left half module 4 and right half module 5 because
The extruding force that high temperature can expand outwardly；At the same time, rotating bar 10 drives the gear 15 affixed with it to rotate again, and gear 15 turns
It is dynamic that left rack gear 14 is driven to continue to put in the strip groove 13 on right locking block 12, while right rack gear 22 being driven to continue to put in left interlocking
In strip groove 13 on block 11, so that the rotation of gear 15 will pull left half module 4 and right half module 5 further towards further supporting
Disappear the extruding force that left half module 4 and right half module 5 expand outwardly by high temperature.
During rotating bar 10 rotates, affixed mobile bar 20 is under the drive of rotating bar 10 towards remote with rotating bar 10
Direction from inner cavity 16 is mobile, when casting complete needs open type chamber 7 for a period of time, in the process, 9 meeting of expanded by heating part
Be heated always and expand, mobile bar 20 is moved towards the direction far from inner cavity 16 always, until until the outgassing nonreturn valve that is plugged
18 are aligned with the through-hole 21 in mobile bar 20 at this time, and the gas being stored in inner cavity 16 flows back into type chamber by outgassing nonreturn valve 18
In 7, with the pressure difference inside and outside offset-type chamber 7, it is easy to open type chamber 7.
Then left half module 4 and right half module 5 are unclamped by pushing against device, the temperature in type chamber 7 reduces at this time, expanded by heating part
9 shrink according to thermal expansion and contraction principle, and the motive force that rotating bar 10 loses expanded by heating part 9 restores state free to rotate, turn
Lever 10 is inverted with moving gear 15, and left rack gear 14 and right rack gear 22 are exited along the direction far from strip groove 13, then are loosered a bolt, will
Left rack gear 14 and right rack gear 22 take out from strip groove 13 respectively, then rotating bar 10 is taken out left half module 4 and right half module 5
Realize open form.
In conclusion thermal expansion and contraction principle of the utility model according to expanded by heating part 9, expanded by heating part 9 had been poured
Heat absorption expansion pusher turn lever 10 rotates forward in journey, drives left rack gear 14 to put in right lock by the gear 15 affixed with rotating bar 10
It connects in block 12, right rack gear 22 is driven to put in left locking block 11, the close of left half module 4 and right half module 5 is realized, with counteracting type chamber 7
The active force that interior high temperature expands outwardly left half module 4 and right half module 5；
When being passed through liquid metal into type chamber 7, the gas remained in type chamber 7 is discharged into the inner cavity 16 of left half module 4, with
Expanded by heating part 9 drive rotating bar 10 rotate forward, affixed movement is gradually distance from inner cavity 16 with rotating bar 10, until mobile bar 20
On through-hole 21 be aligned with outgassing nonreturn valve 18, the gas backstreaming in inner cavity 16 is into type chamber 7 at this time, inside and outside offset-type chamber 7
Pressure difference avoids type chamber 7 because inside and outside pressure difference is too greatly without being easily opened.
Above-described is only the embodiments of the present invention, and the common sense such as well known specific structure and characteristic are herein in scheme
It does not describe excessively.It should be pointed out that for those skilled in the art, in the premise for not departing from the utility model structure
Under, several modifications and improvements can also be made, these also should be considered as the protection scope of the utility model, these all will not influence
The effect and patent practicability that the utility model is implemented.This application claims protection scope should be with the content of its claim
Subject to, the records such as specific embodiment in specification can be used for explaining the content of claim.
Claims (6)
1. being used for the molding casting mould of water pump vane, including lower die, sand core column, sand core, sand core column, sand are equipped at lower die center
The top of stem is equipped with sand core with matching, is equipped with upper mold above sand core, upper mold include into Hough symmetrically left half module and
Right half module, the groove with sand core cooperation is offered in left half module, right half module and lower die, and the upper die and lower die can be enclosed use
In molding type chamber, lower die bottom offers the running channel of communication groove；It further include the abutting for pushing against left half module and right half module
Device；It is characterized in that：
Arc-shaped cavity is offered in the left half module and right half module, one end of arc-shaped cavity is equipped with expanded by heating part, left half module
Rotating bar is equipped between right half module, one end of rotating bar can be put in the arc-shaped cavity of left half module, and the other end can put in right half
In the arc-shaped cavity of mould, the both ends of the rotating bar are affixed with the expanded by heating part；
The top of the left half module is equipped with left locking block, and the top of right half module is equipped with right locking block, left locking block and right locking block
Strip groove is inside offered, the left rack gear that can put in right locking block inner stripe slot, right interlocking are removably connected on left locking block
The right rack gear that can put in left locking block inner stripe slot is removably connected on block, the top of rotating bar is connected with and left rack gear and the right side
Rack gear meshed gears；
Offer the inner cavity that can be connected to the type chamber in the left half module, inner cavity and type chamber junction be equipped with breather check valve and
Outgassing nonreturn valve is communicated with channel between inner cavity and the arc-shaped cavity of left half module, being slidingly sealed in channel can be unidirectional with outlet
The mobile bar of valve fitting, one end of mobile bar puts in described interior intracavitary, and the other end is affixed with rotating bar, and mobile bar puts in inner cavity
Side offers through-hole, and mobile bar offers and is equipped with elastic component between one end of through-hole and bottom wall of inner cavity, the through-hole can with go out
Gas check valve is aligned or is staggered.
2. according to claim 1 be used for the molding casting mould of water pump vane, it is characterised in that：Table in the rotating bar
Face and lower surface are contacted with the inner wall of arc-shaped cavity respectively.
3. according to claim 1 be used for the molding casting mould of water pump vane, it is characterised in that：The arc-shaped cavity and
Blind hole is equipped between type chamber, one end of blind hole is connected to arc-shaped cavity, and for the other end close to the type chamber, the expanded by heating part is remote
It is put in the blind hole from one end of arc-shaped cavity.
4. according to claim 1 be used for the molding casting mould of water pump vane, it is characterised in that：The expanded by heating part
For air bag resistant to high temperature.
5. according to claim 1 be used for the molding casting mould of water pump vane, it is characterised in that：The abutting device is
Cylinder.
6. according to claim 1 be used for the molding casting mould of water pump vane, it is characterised in that：The elastic component is bullet
Spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622906.0U CN208162563U (en) | 2018-04-27 | 2018-04-27 | For the molding casting mould of water pump vane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820622906.0U CN208162563U (en) | 2018-04-27 | 2018-04-27 | For the molding casting mould of water pump vane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208162563U true CN208162563U (en) | 2018-11-30 |
Family
ID=64367849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820622906.0U Expired - Fee Related CN208162563U (en) | 2018-04-27 | 2018-04-27 | For the molding casting mould of water pump vane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208162563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339944A (en) * | 2018-04-27 | 2018-07-31 | 遵义江星机械模具有限公司 | For the molding casting mould of water pump vane |
| CN110625099A (en) * | 2019-09-25 | 2019-12-31 | 孙庆峰 | Manufacturing and processing method of water pump impeller |
-
2018
- 2018-04-27 CN CN201820622906.0U patent/CN208162563U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108339944A (en) * | 2018-04-27 | 2018-07-31 | 遵义江星机械模具有限公司 | For the molding casting mould of water pump vane |
| CN108339944B (en) * | 2018-04-27 | 2024-08-30 | 石家庄瑞特泵业有限公司 | Casting die for molding impeller of water pump |
| CN110625099A (en) * | 2019-09-25 | 2019-12-31 | 孙庆峰 | Manufacturing and processing method of water pump impeller |
| CN110625099B (en) * | 2019-09-25 | 2020-07-28 | 山东安立泰泵业股份有限公司 | Manufacturing and processing method of water pump impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20210427 |
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| CF01 | Termination of patent right due to non-payment of annual fee |