CN207170912U - A kind of mould for die casting pipe screw thread - Google Patents
A kind of mould for die casting pipe screw thread Download PDFInfo
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- CN207170912U CN207170912U CN201721196696.5U CN201721196696U CN207170912U CN 207170912 U CN207170912 U CN 207170912U CN 201721196696 U CN201721196696 U CN 201721196696U CN 207170912 U CN207170912 U CN 207170912U
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- groove
- thread groove
- core rod
- screw thread
- air drain
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Abstract
A kind of mould for die casting pipe screw thread, including core rod, injection molding cavity and core_pulling pole are the utility model is related to, the hollow reservoir of the core rod is injection molding cavity, and the suitable shape with being intended to the workpiece of die casting of injection molding cavity shape is consistent；Core rod includes cover half core rod and dynamic model core rod, cover half core rod has the first groove, and dynamic model core rod has the second groove being adapted with the first groove, in cover half core rod and dynamic model core rod matched moulds, first groove and the second groove form the first perforate, and core_pulling pole is placed in the first perforate；The inwall of first groove is provided with the first thread groove, and the inwall of the second groove is provided with the second thread groove, and the first thread groove is consistent with the second screw thread groove shape and is oppositely arranged, the axis of the first thread groove the first perforate vertical with the second thread groove；The both ends of first thread groove are provided with first row air drain, and one end of the second thread groove is provided with second row air drain, and second row air drain is in the same size with homonymy first exhaust groove shape and is oppositely arranged.
Description
Technical field
It the utility model is related to die casting field, more particularly to a kind of mould for die casting pipe screw thread.
Background technology
The die casting of existing carburetor, the plunger hole pipe of carburetor body and the pipe screw thread at the top cap place of connecing are in carburetor
After blank sheet is body formed, further tapping come out, process carburetor the step of it is cumbersome.
Utility model content
Complex steps when the purpose of this utility model is to overcome existing manufacture carburetor, pipe screw thread carburetor body into
A kind of the shortcomings that tapping is made again after type, there is provided mould for die casting pipe screw thread.
In order to solve the above technical problems, the utility model employs following technical measures：
A kind of mould for die casting pipe screw thread, including core rod, injection molding cavity and core_pulling pole, the hollow reservoir of core rod is injection
Chamber, the suitable shape with being intended to the workpiece of die casting of injection molding cavity shape are consistent；Core rod includes cover half core rod and dynamic model core rod, cover half core rod tool
There is the first groove, dynamic model core rod has the second groove being adapted with the first groove, in cover half core rod and dynamic model core rod matched moulds,
First groove and the second groove form the first perforate, and core_pulling pole is placed in the first perforate；The inwall of first groove is provided with first
Thread groove, the inwall of the second groove are provided with the second thread groove, and the first thread groove is consistent with the second screw thread groove shape and sets relatively
Put, the axis of the first thread groove the first perforate vertical with the second thread groove；The both ends of first thread groove are provided with first exhaust
Groove, one end of the second thread groove are provided with second row air drain, second row air drain it is in the same size with homonymy first exhaust groove shape and
It is oppositely arranged.
The utility model can also be further perfect by following technical measures：
As a further improvement, the difference of the path in big footpath and the pipe screw thread at the first screw thread is 2mm-4mm.
As a further improvement, the pitch of the first thread groove is 1.6mm-1.8mm.
As a further improvement, the first thread groove includes uniform area and adjustment area, adjustment area is arranged at the both sides in uniform area,
Area is adjusted close to first row air drain；The thread groove in adjustment area is the first side close to the one end in uniform area, and the thread groove for adjusting area leans on
One end of nearly first row air drain is the second side, and the diameter of thread groove is gradually reduced from the first side to the second side.
As a further improvement, first row air drain and second row air drain include be sequentially connected interconnecting part, diversion division and
Holding part, interconnecting part connect first thread groove and diversion division, and diversion division tilts along interconnecting part towards holding part direction.
As a further improvement, before defining first row air drain two inwalls relative on the axis direction of the first perforate away from
From the width for first row air drain, the width of the width of interconnecting part, the width of diversion division and holding part increases successively.
As a further improvement, the holding part of second row air drain is provided through the first through hole of dynamic model core rod.
Compared with prior art, the utility model has advantages below：
The inwall of first groove is provided with the first thread groove, and the inwall of the second groove is provided with the second thread groove, the first spiral shell
Groove is consistent with the second screw thread groove shape and is oppositely arranged, the axle of the first thread groove first perforate vertical with the second thread groove
Line；When pouring carburetor, pipe screw thread is added in the former of core rod so that the plunger hole pipe for the carburetor body that die casting comes out is certainly
Band pipe screw thread, eliminates follow-up tapping flow, has saved manufacturing process.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
The accompanying drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the present utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, on the premise of not paying creative work,
Other related accompanying drawings can also be obtained according to these accompanying drawings.
Accompanying drawing 1 is the former face schematic diagram of the cover half core rod of the utility model-embodiment；
Accompanying drawing 2 is the former face schematic diagram of the dynamic model core rod of the utility model-embodiment；
Accompanying drawing 3 is the enlarged drawing in H areas in accompanying drawing 2；
Accompanying drawing 4 is the schematic perspective view of the core rod matched moulds of the utility model-embodiment；
Accompanying drawing 5 is the core rod and core_pulling pole schematic diagram of the utility model-embodiment；
Accompanying drawing 6 is the schematic diagram of the workpiece (carburetor body) for treating die casting of the utility model-embodiment.
Icon：1- moulds；10- core rods；11- cover half core rods；The grooves of 111- first；The thread grooves of 112- first；1121- is uniform
Area；1122- adjusts area；113- first row air drains；114- interconnecting parts；115- diversion divisions；116- holding parts；12- dynamic model core rods；
The grooves of 121- second；1211- first through hole；122- second row air drains；The thread grooves of 123- second；13- core_pulling poles；15- first is opened
Hole；The perforates of 16- second；The perforates of 17- the 3rd；2- carburetor bodies；21- plunger hole pipes；211- pipe screw threads；22- trunnions；221- is mixed
Close room outlet；222- air inlets.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the utility model embodiment is clearly and completely described, shown
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the utility model protection.Therefore, the implementation of the present utility model to providing in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of of the present utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ",
The orientation or position relationship of the instructions such as " clockwise ", " counterclockwise " be based on orientation shown in the drawings or position relationship, be only for
Be easy to describe the utility model and simplify to describe, rather than instruction or imply signified equipment or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
The other characterisation contact crossed between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 to Fig. 5, a kind of mould for die casting pipe screw thread, including core rod 10, injection molding cavity and core_pulling pole 13 are referred to,
The hollow reservoir of core rod 10 is injection molding cavity, and the suitable shape with being intended to the workpiece of die casting of injection molding cavity shape is consistent；Core rod 10 includes cover half
Core rod 11 and dynamic model core rod 12, cover half core rod 11 have the first groove 111, and dynamic model core rod 12 has fits with the phase of the first groove 111
The second groove 121 matched somebody with somebody, in cover half core rod 11 and during dynamic model 12 matched moulds of core rod, the first groove 111 and the formation of the second groove 121 the
One perforate 15, core_pulling pole 13 are placed in the first perforate 15, and core_pulling pole 13 is used to manufacture cavity during die casting workpiece, after Workpiece shaping,
Core_pulling pole 13 is taken out, then forms the pipeline with the cavity consistent with the shape of core_pulling pole 13.
The inwall of first groove 111 is provided with the first thread groove 112, and the inwall of the second groove 121 is provided with the second screw thread
Groove 123, the first thread groove 112 is consistent with the shape of the second thread groove 123 and is oppositely arranged, the first thread groove 112 and the second screw thread
The axis of vertical first perforate 15 of groove 123；The both ends of first thread groove 112 are provided with first row air drain 113, the second thread groove
123 one end is provided with second row air drain 122, and second row air drain 122 is consistent with homonymy first row 113 shape sizes of air drain and phase
To setting.
The big footpath of first thread groove 112 and the difference of path are 2mm-4mm, i.e., the big footpath of manufactured pipe screw thread 211 and path
Difference be 2mm-4mm.The protuberance of first thread groove 112, i.e., the pitch of manufactured pipe screw thread 211 is 1.6mm-1.8mm.
First thread groove 112 includes uniform area 1121 and adjustment area 1122, and the screw thread groove shape in uniform area 1121 is consistent, adjusts
The thread groove of main plot 1122 changes；Adjustment area 1122 is arranged at the both sides in uniform area 1121, and adjustment area 1122 is close to first
Air discharge duct 113；The thread groove in adjustment area 1122 is the first side close to the one end in uniform area 1121, and the thread groove in adjustment area 1122 leans on
One end of nearly first row air drain 113 is the second side, and the diameter of thread groove is gradually reduced from the first side to the second side, it is ensured that injection
Hot gas and aluminium alloy in fusing aluminium alloy can flow rapidly into first row air drain 113.
Interconnecting part 114 that first row air drain 113 and second row air drain 122 include being sequentially connected, diversion division 115 and accommodating
Portion 116, first thread groove 112 of the connection of interconnecting part 114 and diversion division 115, diversion division 115 is along interconnecting part 114 towards holding part 116
Direction tilts, and the depth of interconnecting part 114, diversion division 115 and holding part 116 gradually increases so that the fusing aluminium alloy of injection and
Hot gas can flow into holding part 116 as early as possible.
The front distance for defining 113 two inwalls relative on the axis direction of the first perforate 15 of first row air drain is first row
The width of air drain 113, the width of the width of interconnecting part, the width of diversion division and holding part increase successively, further speed up die casting
When hot gas and fusing aluminium alloy can as early as possible enter first row air drain 113 in.
The shape size of second row air drain 122 and first row air drain 113 are completely the same, the holding part of second row air drain 122
116 are provided through the first through hole 1211 of dynamic model core rod 12, and the setting of first through hole 1211 enables hot gas quickly from injection
Chamber is discharged to outside core rod 10.
Core rod 10 further comprises the second perforate 16 and the 3rd perforate 17, and the second perforate 16 connects with the 3rd perforate 17, and
Second perforate 16 connects with the 3rd perforate 17 with the first perforate 15；Second perforate 16 is placed with the 3rd perforate 17 to be adapted to it
Core_pulling pole；Further, being intended to the workpiece of die casting needs to open up hole or the position of pipeline, is opened up in position corresponding to core rod 10
Projection or through hole, and place core_pulling pole in through hole.
Referring to Fig. 6, the mould 1 of the present embodiment is to be used for die casting carburetor body 2, carburetor body 2 includes trunnion 22
With plunger hole pipe 21, the internal pressure of the first perforate 15 casts out plunger hole pipe 21, and the second perforate 16 and the 3rd perforate 17 of connection mold
Trunnion 22, wherein, place core_pulling pole in the first perforate 15 and mold plunger hole, the second perforate 16 places core_pulling pole and molds mixing
Room outlet 221, the 3rd perforate 17 place core_pulling pole and mold air inlet 222, the shape of injection molding cavity and the shape of carburetor body 2
Unanimously.
One end of plunger hole pipe 21 and is connected with trunnion 22 perpendicular to the medium position of trunnion 22, plunger hole pipe 21 it is another
One end excircle is cast with pipe screw thread 211, and pipe screw thread 211 is cast into jointly by the first thread groove 112 and the second thread groove 123
Type；The pitch of pipe screw thread 211 is 1.4mm-1.9mm；Preferably, the pitch of pipe screw thread 211 is 1.6mm-1.8mm,；If pipe screw thread
211 pitch is excessive, then the sealing of pipe screw thread 211 is poor, if the pitch of pipe screw thread 211 is too small, the intensity of pipe screw thread 211 is not
It is enough, it is easily damaged.In the present embodiment, the pitch of pipe screw thread 211 is 1.75mm.
The difference of the big footpath of pipe screw thread 211 and the path of pipe screw thread 211 is 2mm-4mm, if the difference of big footpath and path is too small,
Ridge contact area between the ridge of pipe screw thread 211 and upper lid is small, the problem of causing poor sealing, if big footpath with it is small
The difference in footpath is excessive, then the ridge contact area between the ridge of pipe screw thread 211 and upper lid is excessive, not only sealing difference but also
Manufacturing cost raises.In the present embodiment, the big footpath of pipe screw thread 211 is 37.8mm, and the path of pipe screw thread 211 is 34.6mm, pipe spiral shell
The big footpath of line 211 and the difference of path are 3.2mm.
By cover half core rod 11 and the matched moulds of dynamic model core rod 12, core_pulling pole is placed at the position for needing to punch, then to injection molding cavity
The molten slurry of aluminium alloy of injection fusing, after the molten slurry of aluminium alloy is cooled and shaped, opens core rod 10, by first row air drain 113 and second
The Al-alloy metal block formed in air discharge duct 122 is got rid of, you can obtains the blank of carburetor body 2 with pipe screw thread 211.
The utility model is provided with thread groove by mould 1 so that pipe screw thread 211 passes through grinding tool pressure with carburetor body 2
Casting is integrally formed, and not only reduces manufacturing procedure, also a saving cost.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc., the utility model should be included in
Within the scope of protection.
Claims (7)
- A kind of 1. mould for die casting pipe screw thread, it is characterised in that including core rod, injection molding cavity and core_pulling pole, the core rod Hollow reservoir is injection molding cavity, and the suitable shape with being intended to the workpiece of die casting of the injection molding cavity shape is consistent；The core rod includes cover half mould Core and dynamic model core rod, the cover half core rod have the first groove, and the dynamic model core rod has what is be adapted with first groove Second groove, in the cover half core rod and during the dynamic model core rod matched moulds, first groove and second groove form the One perforate, the core_pulling pole are placed in first perforate；The inwall of first groove is provided with the first thread groove, and described The inwall of two grooves is provided with the second thread groove, and first thread groove is consistent with the second screw thread groove shape and sets relatively Put, the axis of first thread groove, first perforate vertical with second thread groove；The both ends of first thread groove First row air drain is provided with, one end of second thread groove is provided with second row air drain, the second row air drain and homonymy The first exhaust groove shape is in the same size and is oppositely arranged.
- 2. the mould according to claim 1 for die casting pipe screw thread, it is characterised in that the big footpath of first thread groove And the difference of the path of the pipe screw thread is 2mm-4mm.
- 3. the mould according to claim 1 for die casting pipe screw thread, it is characterised in that the pitch of first thread groove For 1.6mm-1.8mm.
- 4. the mould according to claim 1 for die casting pipe screw thread, it is characterised in that first thread groove includes equal Cloth area and adjustment area, the adjustment area are arranged at the both sides in the uniform area, and the adjustment area is close to the first row air drain；Institute It is the first side that the thread groove for adjusting area, which is stated, close to the one end in uniform area, and the thread groove in the adjustment area is close to the first row air drain One end be the second side, the diameter of thread groove is gradually reduced from first side to second side.
- 5. the mould according to claim 1 for die casting pipe screw thread, it is characterised in that the first row air drain and second Air discharge duct includes interconnecting part, diversion division and the holding part being sequentially connected, and the interconnecting part connects first thread groove and institute Diversion division is stated, the diversion division tilts along the interconnecting part towards the holding part direction.
- 6. the mould according to claim 5 for die casting pipe screw thread, it is characterised in that define first row air drain described On the axis direction of first perforate the front distance of two relative inwalls be first row air drain width, width, the water conservancy diversion of interconnecting part The width in portion and the width of holding part increase successively.
- 7. the mould according to claim 5 for die casting pipe screw thread, it is characterised in that the second row air drain houses Portion is provided through the first through hole of the dynamic model core rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196696.5U CN207170912U (en) | 2017-09-18 | 2017-09-18 | A kind of mould for die casting pipe screw thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721196696.5U CN207170912U (en) | 2017-09-18 | 2017-09-18 | A kind of mould for die casting pipe screw thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207170912U true CN207170912U (en) | 2018-04-03 |
Family
ID=61747885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721196696.5U Active CN207170912U (en) | 2017-09-18 | 2017-09-18 | A kind of mould for die casting pipe screw thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207170912U (en) |
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2017
- 2017-09-18 CN CN201721196696.5U patent/CN207170912U/en active Active
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