CN205967297U - Casting psammitolite group of compound cylinder head of integrated form - Google Patents
Casting psammitolite group of compound cylinder head of integrated form Download PDFInfo
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- CN205967297U CN205967297U CN201621018175.6U CN201621018175U CN205967297U CN 205967297 U CN205967297 U CN 205967297U CN 201621018175 U CN201621018175 U CN 201621018175U CN 205967297 U CN205967297 U CN 205967297U
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Abstract
The utility model discloses a casting psammitolite group of compound cylinder head of integrated form, including interim psammitolite group, jar hole water jacket sand mould, the combination sand mould, the shrouding disc sand mould is the sand mould with watering, interim psammitolite group is by integral type chassis sand mould, preceding sand mould, back sand mould, right side sand mould, cam tappet sand mould and the equipment of left sand mould form, the integrated jar hole shaping portion that has the cylinder hole on the sand mould of integral type chassis, the integrated useful passageway shaping portion that comes shaping sail passageway on the water jacket sand mould of jar hole, it is that the sand mould includes the sprue to water, main cross gate, water in two branch cross gates and a plurality of L shape, the hypomere part of sprue is inside preceding sand mould, the upper segment part of sprue is provided by the pouring sand mould, main cross gate is inside the front end of integral type chassis sand mould, water respectively the inside formed at right sand mould and left sand mould in two branch cross gates and a plurality of L shape. This psammitolite group is used for successfully casting out the compound cylinder head of the high integrated form of part complexity.
Description
Technical field
This utility model is related to casting field, particularly to a kind of casting sand core group of integrated form Composite cylinder lid.
Background technology
Cylinder head, as key components and partss of conventional internal combustion, forms together with cylinder block, cylinder jacket and starts
The core architecture of machine.Cylinder head is installed on cylinder block, and cylinder jacket is installed in the middle of the cylinder-bore of cylinder block, cylinder head and work
Plug, cylinder jacket form the combustor of electromotor, and piston is reciprocating in cylinder jacket.In addition, cylinder head distribution installed above
Mechanism, oil spout yarn system and cover lid.
Traditional cylinder head is usually a radial plate type box like structure, and inner chamber is by air flue, valve mounting struction, cylinder head bolt
Hole post, the water jacket cavity composition of oil injector hole seat, pore pillar and these structure peripheries, complex structure, casting is difficult.Start
During machine work, water jacket cavity is full of coolant, carries out necessary cooling, its casting side to valve and valve retainer, cylinder head base plate
Method is typically side casting or flat casting.
The information being disclosed in this background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or imply in any form that this information structure has been existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of casting sand core group of integrated form Composite cylinder lid, for successfully casting
Go out the high integrated form Composite cylinder lid of part complexity.
For achieving the above object, this utility model provides a kind of casting sand core group of integrated form Composite cylinder lid, this collection
Accepted way of doing sth Composite cylinder lid includes entering and exhaust channel, mounting hole of oil sprayer, cylinder cap upper water sleeve, cylinder cap lower water jacket, cylinder-bore, cylinder holes water jacket
With tappet hole, cylinder cap lower water jacket connects by upper aquaporin with cylinder holes water jacket, and casting sand core group is used for molding integrated form and is combined
Cylinder cap casting, casting sand core group includes:Interim core group, its by integral type chassis sand mold, front sand mold, rear sand mold, right sand mold,
Tappet sand mold and left sand mold assemble, and integral type chassis sand mold is integrated with the cylinder holes forming part of cylinder-bore;Cylinder holes water
Set sand mold, it is assembled in interim core group, and cylinder holes water jacket sand mold is vertically placed, and cylinder holes water jacket sand mold is integrated with for molding
The channel forming portion of upper aquaporin;Combination sand mold, it includes cylinder cap upper water sleeve sand mold, cylinder cap lower water jacket sand mold, air intake duct sand mold
With exhaust duct sand mold, the contact site filling fire resisting of channel forming portion and cylinder cap lower water jacket sand mold and compressible fibrous material;
Shrouding disc sand mold, shrouding disc sand mold is provided commonly for molding integrated form Composite cylinder lid with front sand mold, rear sand mold, right sand mold and left sand mold
Top surface and all around shape;And to pour be sand mold, pouring is that sand mold includes:Sprue, it erects setting, and the upper end of sprue has pours
Cup, sprue is located at the side of the length direction of integrated form Composite cylinder lid foundry goods, before the hypomere part of sprue is formed at
Inside sand mold, the upper portion of sprue is provided by casting sand mould;Main cross gate, its two ends is provided with filter screen, the bottom of sprue
End is connected with main cross gate, and main cross gate is parallel with the width of integrated form Composite cylinder lid foundry goods, and main cross gate is formed at
Inside the front end of integral type chassis sand mold;Two points of cross gates, this two points of cross gates are set up in parallel and are combined gas with integrated form
The length direction of cylinder head casting is parallel, and this two points of cross gates are in the both sides of the lower section of integrated form Composite cylinder lid foundry goods, and two
One end of individual point of cross gate is connected with the two ends of main cross gate respectively, and two points of cross gates and main cross gate form U-shape, two
The other end dividing cross gate is respectively equipped with slag trap, and two points of cross gates are respectively formed in right sand mold and the inside of left sand mold;With
And several L-shaped ingates, it is uniformly arranged on the inner side of two points of cross gates, and the port of export of each L-shaped ingate is gradually
Contracting shape, this several L-shaped ingate is used for importing molten metal in casting mold, and several L-shaped ingates are respectively formed in right sand mold
Inside with left sand mold.
Preferably, integral type chassis sand mold is also integrated with the installation position of filter screen.
Preferably, the cylinder cap upper water sleeve sand mold of combination sand mold, cylinder cap lower water jacket sand mold, air intake duct sand mold and exhaust duct sand mold
Using 3D printing forming technique one-shot forming.
Compared with prior art, this utility model has the advantages that:By integral type chassis, four-way mould assembly, group
Close sand mold, the whole sand mold that successively mode of group core assembles is so that the cylinder holes water jacket sand mold of integrated form Composite cylinder lid is with vertical
Attitude (i.e. straight diesel cylinder holes working condition) is maintained in casting mold it is easy to obtaining uniform wall thickness and deforming little cylinder holes shape
Shape, the multiple cores of application integration of combination sand mold, simplify group type technique and group type number of times, group type is more accurate, enter row
Air flue will not float in casting cycle, and evenly, air port performance is more excellent for entering and exhaust channel wall thickness.
Brief description
Fig. 1 is the sectional view of integrated form Composite cylinder lid in this utility model;
Fig. 2 is the running gate system being related in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Schematic diagram;
Fig. 3 is the assembling figure of the casting sand core group according to integrated form Composite cylinder lid of the present utility model;
Fig. 4 is the knot of integral type chassis sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Structure schematic diagram;
Fig. 5 is the structural representation of front sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Figure;
Fig. 6 be in casting sand core group according to integrated form Composite cylinder lid of the present utility model after sand mold structural representation
Figure;
Fig. 7 is the structural representation of right sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Figure;
Fig. 8 is the structural representation of left sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Figure;
Fig. 9 is the structure of the casting sand core group cam tappet sand mold according to integrated form Composite cylinder lid of the present utility model
Schematic diagram;
Figure 10 is the knot of cylinder holes water jacket sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Structure schematic diagram;
Figure 11 is that the structure combining sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model is shown
It is intended to;
Figure 12 is that the structure of shrouding disc sand mold in casting sand core group according to integrated form Composite cylinder lid of the present utility model is shown
It is intended to;
Figure 13 is that the structure of casting sand mould in casting sand core group according to integrated form Composite cylinder lid of the present utility model is shown
It is intended to;
Figure 14 is the structure of interim sand mold group in casting sand core group according to integrated form Composite cylinder lid of the present utility model
Schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " inclusion " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredient.
First, the operation principle of running gate system in the present embodiment is described in conjunction with Fig. 2, this running gate system include sprue 12,
Main 13, two point cross gates 15 of cross gate and several L-shaped ingates 16, wherein sprue 12 erect setting, sprue 12
Upper end there is cup 11, sprue 12 is located at the side of the length direction of integrated form Composite cylinder lid foundry goods 100, main horizontal pours
The two ends in road 13 are provided with filter screen 14, and the bottom of sprue 12 is connected with main cross gate 13, and main cross gate 13 and integrated form are combined
The width of cylinder cap casting 100 is parallel, two points of cross gates 15 be set up in parallel and with integrated form Composite cylinder lid foundry goods 100
Length direction parallel, this two points of cross gate 15 is in the both sides of the lower section of integrated form Composite cylinder lid foundry goods 100, two points
One end of cross gate 15 is connected with the two ends of main cross gate 13 respectively, and two points of cross gates 15 form U-shape with main cross gate 13,
The other end of two points of cross gates 15 is respectively equipped with slag trap, and several L-shaped ingates 16 are uniformly arranged on two points and horizontal pour
The inner side in road 15, the port of export of each L-shaped ingate 16 is gradually-reducing shape, and this several L-shaped ingate 16 is used for leading molten metal
Enter in casting mold.This running gate system can be realized side and pour rising pouring, can realize cylinder head cylinder top upward using this running gate system, cylinder
Lid cylinder holes water jacket stands up, the downward vertical casting of cylinder-bore,
In concrete casting, molten metal flows through sprue 12 from cup 11, reaches main cross gate 13, by 2 pieces of filter screens
14, the slag of molten metal is isolated by filter screen 14, does quiet molten metal and is divided into two strands of left and right, by point cross gate (two points of cross gates
15), molten metal flow to a point slag trap for cross gate end always, and the tiny slag of molten metal residual is assembled then in slag trap,
When molten metal filing full marks cross gate, then flow into casting mold through L-shaped ingate 16.In the present embodiment, L-shaped ingate 16 is with foundry goods even
What socket part was divided is shaped as gradually-reducing shape, can be designed as " eight " font extending out, and the advantage of this shape flows through " eight " word for molten metal
During type, the flow velocity of molten metal, by slowing down soon, reaches the effect that type is slowly filled in the quick arrival of molten metal, is conducive to liquid metal filling fast
And steady, not being that injection is radical fills type, is conducive to die cavity gas to discharge, and foundry goods is not likely to produce the casting flaw of pore.And molten metal
Quick and stable can enter casting mold, casting time is fast, the final temperature of molten metal is high, and foundry goods is not likely to produce the casting flaw of cold shut.
In addition, the filtration pushing off the slag through drainage screen 14 and slag trap for the molten metal is respond well, the molten metal entering casting mold is clean, and foundry goods is difficult
Produce the casting flaw of slag blister.To realize filling type even, pushing off the slag effect is good, smooth in exhaust, cylinder holes water jacket uniform wall thickness, enters
Non-rising in exhaust duct casting, and entering and exhaust channel uniform wall thickness, high yield rate, yield rate is high, and good product quality.
In the present embodiment, the sand of the core Integral design cost implementation of running gate system and molding integrated form Composite cylinder lid
Core group, so, this casting sand core group includes integral type chassis sand mold 1, front sand mold 2, rear sand mold 3, right sand mold 4, left sand mold 5, convex
(wherein combination sand mold 8 includes cylinder cap upper water sleeve sand mold, water under cylinder cap for wheel tappet sand mold 6, cylinder holes water jacket sand mold 7, combination sand mold 8
Set sand mold, air intake duct sand mold and exhaust duct sand mold), shrouding disc sand mold 10 and to pour be sand mold.
Specifically, as shown in figure 1 to figure 13, a kind of integrated form Composite cylinder according to this utility model specific embodiment
The casting sand core group of lid, this integrated form Composite cylinder lid includes entering and exhaust channel (air intake duct 101 shown in Fig. 1), fuel injector is installed
Hole, cylinder cap upper water sleeve 102, cylinder cap lower water jacket 103, cylinder-bore 105, cylinder holes water jacket 104 and tappet hole (referring to Fig. 1), cylinder
Lid lower water jacket 103 is connected by upper aquaporin with cylinder holes water jacket 104, and this casting sand core group is used for molding integrated form Composite cylinder lid and casts
Part 100.In the present embodiment, casting sand core group by integral type chassis sand mold 1, front sand mold 2, rear sand mold 3, right sand mold 4, left sand mold 5,
Tappet sand mold 6, cylinder holes water jacket sand mold 7, combination sand mold 8, shrouding disc sand mold 10 and to pour be that sand mold combines.Wherein, by
Integral type chassis sand mold 1, front sand mold 2, rear sand mold 3, right sand mold 4, tappet sand mold 6 and left sand mold 5 are assembled into interim core
Group (referring to Figure 14), integral type chassis sand mold 1 is integrated with the cylinder holes forming part of cylinder-bore 105, and cylinder holes water jacket sand mold 7 is assembled in
In interim core group, cylinder holes water jacket sand 7 type is vertically placed, and cylinder holes water jacket sand mold 7 is integrated with the logical of in molding aquaporin
Road forming part.Combination sand mold 8 includes cylinder cap upper water sleeve sand mold, cylinder cap lower water jacket sand mold, air intake duct sand mold and exhaust duct sand mold, leads to
The contact site filling fire resisting of road forming part and cylinder cap lower water jacket sand mold and compressible fibrous material.Shrouding disc sand mold 10 and front sand
Type 2, rear sand mold 3, right sand mold 4 and left sand mold 5 are provided commonly for top surface and all around shape of molding integrated form Composite cylinder lid.
Specifically, as shown in Fig. 3 and Fig. 2, pouring is that sand mold includes sprue 12,13, two point cross gates 15 of main cross gate
And several L-shaped ingates 16.Wherein, sprue 12 erects setting, and the upper end of sprue 12 has cup 11, sprue
The side of 12 length directions being located at integrated form Composite cylinder lid foundry goods, the hypomere part of sprue 12 is formed in front sand mold 2
Portion, the upper portion of sprue 12 provides (referring to Figure 13) by casting sand mould 9.The two ends of main cross gate 13 are provided with filter screen 14,
The bottom of sprue 12 is connected with main cross gate 13, and main cross gate 13 is flat with the width of integrated form Composite cylinder lid foundry goods
OK, main cross gate 13 is formed inside the front end of integral type chassis sand mold 1.Two points of cross gates 5 are set up in parallel and and integrated form
The length direction of Composite cylinder lid foundry goods is parallel, and this two points of cross gate 15 is in the lower section of integrated form Composite cylinder lid foundry goods
Both sides, one end of two points of cross gates 15 is connected with the two ends of main cross gate 13 respectively, two points of cross gates 15 and main cross gate
13 composition U-shape, the other end of two points of cross gates 15 is respectively equipped with slag trap, and two points of cross gates 15 are respectively formed in right sand
Type 4 and the inside of left sand mold 5.Several L-shaped ingates 16 are uniformly arranged on the inner side of two points of cross gates 15, each L-shaped
The port of export of ingate 16 is gradually-reducing shape, and this several L-shaped ingate 16 is used for importing in casting mold by molten metal, several L-shaped
Ingate 16 is also respectively formed in inside the 5 of right sand mold 4 and left sand mold.
As a kind of preferred embodiment, integral type chassis sand mold 1 is integrated with the installation position of filter screen 14.
As a kind of preferred embodiment, the cylinder cap upper water sleeve sand mold of combination sand mold 8, cylinder cap lower water jacket sand mold, air intake duct sand
Type and exhaust duct sand mold adopt 3D printing forming technique one-shot forming.
In such scheme, referring to Fig. 4, integral type chassis sand mold 1 is integrated with the cylinder holes forming part of cylinder-bore 105 and filter screen
Installation position, with front sand mold 2, rear sand mold 3, right sand mold 4, left sand mold 5, tappet sand mold 6 installation location division, referring to Fig. 4 and
Figure 14, front sand mold 2, rear sand mold 3, right sand mold 4, left sand mold 5 and tappet sand mold 6 are arranged on integral type according to the mode of Figure 14
On chassis sand mold 1.Further, integral type chassis sand mold 1 is also integrated with the lower part of slag trap.In the present embodiment, cylinder-bore 105
The advantage that cylinder holes forming part is integrated on integral type chassis sand mold 1 is that cylinder holes shape is shaped, no together with integral type chassis sand mold 1
2 group core errors, relative position is more accurate, can guarantee that relative distance between cylinder holes and cylinder holes it is ensured that the uniform wall thickness of cylinder holes.
As shown in figure 5, front sand mold 2 is used for forming cylinder lid front end face partial shape, front sand mold 2 is integrated with tappet sand
The core print position of type 6 and the installation mating surface with right sand mold 4, left sand mold 5, remaining position is the installation with integral type chassis sand mold 1
Mating surface.In the present embodiment, front sand mold 2 and casting sand mould 9 are collectively forming sprue 12, wherein the hypomere part shape of sprue 12
Inside Cheng Yuqian sand mold 2, casting sand mould 9 provides the upper portion (referring to Figure 13) of sprue 12.
As shown in fig. 6, rear sand mold 3 is used for the rear end face partial shape of forming cylinder lid, rear sand mold 3 is integrated with tappet
The core print position of sand mold 6 and the core print position of cylinder holes water jacket sand mold 7, and with right sand mold 4, the installation mating surface of left sand mold 5 and with combine
The convex location division of sand mold 8, remaining position is the installation mating surface with integral type chassis sand mold 1.
As shown in fig. 7, right sand mold 4 is used for the right flank partial shape of forming cylinder lid, rear sand mold 3 is integrated with dividing of right side
Cross gate and ingate, and the installation mating surface with front sand mold 2, rear sand mold 3, also include and the convex location division combining sand mold 8
And the core print position of cylinder holes water jacket sand mold 7, remaining position is the installation mating surface with integral type chassis sand mold 1.In addition, right sand mold 4
It is also integrated with the upper part of slag trap.
As shown in figure 8, left sand mold 5 is used for the left surface partial shape of forming cylinder lid, rear sand mold 3 is integrated with dividing of left side
Cross gate and ingate, and the installation mating surface with front sand mold 2, rear sand mold 3, also include and the convex location division combining sand mold 8,
Remaining position is the installation mating surface with integral type chassis sand mold 1.In addition, left sand mold 5 is also integrated with the upper part of slag trap.
As shown in figure 9, tappet sand mold 6 is used for the shape of shaping cam axis hole and tappet bore, tappet sand mold 6 collects
Cheng Youyu integral type chassis sand mold 1 install core print position and with front sand mold 2, rear sand mold 3, left sand mold 5 installation location division.
As shown in Figure 10, cylinder holes water jacket sand mold 7 is used for the horizontal water channel shape of molding cylinder holes water sleeve, is connected with cylinder cap lower water jacket
Logical upper water hole shape, also supports the sand mold that attitude vertically placed vertically by cylinder holes water jacket to install supporting position.
As shown in figure 11, combination sand mold 8 covers the shape of water jacket, cylinder cap lower water jacket, air intake duct and exhaust duct for moulding cylinder
Shape, combination sand mold 8 is the assembly of various shapes sand mold, using 3D printing forming technique one-shot forming, can accurately ensure
The geomery of sand mold, and the relative position between shape, ensure that the uniform wall thickness of foundry goods, particularly entering and exhaust channel with
The corresponding coupling of the complicated shape of the entering and exhaust channel shell of cylinder cover water jacket and wall thickness uniform.And water under cylinder cap upper water sleeve, cylinder cap
Set, air intake duct, aerofluxuss pipeline in one step precise forming, can successfully guarantee that entering and exhaust channel no floats in casting cycle, can solve the problem that
The conforming problem of each duct position, so that it is guaranteed that airway parameters formedness.
It should be noted that upper aquaporin whether unimpeded be water temperature whether normal key during diesel engine working condition, and
The upper aquaporin of this integrated form Composite cylinder lid is entirely different with traditional cylinder cover.The upper aquaporin of traditional cylinder cover be exposed outside
, whether unobstructed upper aquaporin is can be readily observed it is also possible to manually get through.But the upper water of this integrated form Composite cylinder lid
Passage is internal in cylinder cap, does not observe, unlikely manually gets through, so in order to ensure the upper of integrated form Composite cylinder lid
Aquaporin unobstructed, during group type cylinder holes water jacket sand mold with vertical attitude (i.e. straight diesel cylinder holes working condition) and
Place one layer of fire resisting and compressible fibrous material, group in the contact site in channel forming portion and described cylinder cap lower water jacket sand mold
In type process and casting cycle, fibrous material is filled in the upper of the lower water jacket sand mold of cylinder holes water jacket sand mold and cylinder cap with elastic stage
In the middle of aquaporin it is ensured that the upper aquaporin of integrated form Composite cylinder lid unimpeded.
As shown in figure 12, shrouding disc sand mold 10 is used for top surface and the part cylinder cap surrounding position shape of forming cylinder lid, shrouding disc
Sand mold 10 has and the installation peace position portion of other sand molds and the exhaust passage of die cavity.
In the present embodiment, specific sand mold assembling scheme is as follows:
Integral type chassis sand mold 2 pieces of filter screen → front sand mold 2 → rear sand mold, 3 → right sand mold, 4 → tappet sand molds of 1 → placement
6 → left sand mold 5 is assembled into an interim sand mold group, and interim sand mold group contains part sprue, main cross gate, filter screen, point horizontal stroke
Running channel, ingate.Wherein:Front sand mold 2, rear sand mold 3, right sand mold 4 pass through on positioning shape and the integral type chassis sand mold 1 of sand mold
Positioning and guiding groove be accurately positioned together, then tappet sand mold 6 by the U-shaped locating slot group of integral type chassis sand mold 1
Dress, finally, left sand mold 5 passes through positioning and guiding groove ecto-entad and assembles, and forms sand mold group, its group type feature is determining by sand mold
The four-way ecto-entad group type of position gathering sill, sand mold self orientation, it is automatically positioned, group type is accurate.
Then, cylinder holes water jacket sand mold 7 passes through the circular core print position of itself, pacifies the corresponding sand falling in interim sand mold group
On type direction and location, and the cylinder holes shape through integral type chassis sand mold 1, form compound cylinder cap cylinder holes shape.Compound cylinder cap
Cylinder holes water jacket sand mold is maintained in casting mold, the benefit of this attitude with vertical attitude (i.e. straight diesel cylinder holes working condition)
It is:It is easy in group type observe the gap (being equivalent to the wall thickness of foundry goods) between sand mold, the gap between sand mold can be adjusted in time,
It is easier to ensure the uniform wall thickness between foundry goods cylinder holes.And, the cylinder holes shape in cylinder holes water jacket sand mold casting when with
The projected area in gravity direction of molten metal is minimum, therefore is subject to the buoyancy minimum of molten metal, so the change of cylinder holes water jacket sand mold
Shape is minimum, the cylinder holes better quality of compound cylinder cap.
Then, combination sand mold 8, by the square positioning key stacking group type on rear sand mold 3, right sand mold 4, left sand mold 5, combines
The core print position close fit of the cylinder holes shape on the Long Circle core print of the entering and exhaust channel on sand mold 8 and integral type chassis sand mold 1, its
Working good successively in remaining core print position, completes to combine the group type (referring to Figure 11 and Figure 14) of sand mold 8.
Then, shrouding disc sand mold 10 passes through to combine the square positioning key stacking group type on sand mold 8.
Finally, casting sand mould 9 and shrouding disc sand mold 10 develop, and are located on front sand mold 2 and the sprue hole with front sand mold 2
Alignment.
To sum up, the casting sand core group of the integrated form Composite cylinder lid of the present embodiment, by integral type chassis, four-way mould assembly,
Combination sand mold, the whole sand mold that successively mode of group core assembles is so that the cylinder holes water jacket sand mold of integrated form Composite cylinder lid is with perpendicular
Straight attitude (i.e. straight diesel cylinder holes working condition) is maintained in casting mold it is easy to obtaining uniform wall thickness and deforming little cylinder holes
Shape, the multiple cores of application integration of combination sand mold, simplify group type technique and group type number of times, group type is more accurate, enters
Exhaust duct will not float in casting cycle, and evenly, air port performance is more excellent for entering and exhaust channel wall thickness.
The aforementioned description to specific illustrative embodiment of the present utility model illustrate that and illustration purpose.These
Description is not wishing to for this utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
A lot of changes and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model
And its practical application, so that those skilled in the art is capable of and utilizes various different example of the present utility model
Property embodiment and various different selection and change.Scope of the present utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (3)
1. a kind of casting sand core group of integrated form Composite cylinder lid, this integrated form Composite cylinder lid includes entering and exhaust channel, fuel injector
Installing hole, cylinder cap upper water sleeve, cylinder cap lower water jacket, cylinder-bore, cylinder holes water jacket and tappet hole, described cylinder cap lower water jacket and described
Cylinder holes water jacket is connected by upper aquaporin, described casting sand core group be used for molding integrated form Composite cylinder lid foundry goods it is characterised in that
Described casting sand core group includes:
Interim core group, it is by integral type chassis sand mold, front sand mold, rear sand mold, right sand mold, tappet sand mold and left sand mold group
Dress forms, and described integral type chassis sand mold is integrated with the cylinder holes forming part of described cylinder-bore;
Cylinder holes water jacket sand mold, it is assembled in described interim core group, and described cylinder holes water jacket sand mold is vertically placed, described cylinder holes water
Channel forming portion for aquaporin upper described in molding is integrated with set sand mold;
Combination sand mold, it includes cylinder cap upper water sleeve sand mold, cylinder cap lower water jacket sand mold, air intake duct sand mold and exhaust duct sand mold, described
The contact site filling fire resisting of channel forming portion and described cylinder cap lower water jacket sand mold and compressible fibrous material;
Shrouding disc sand mold, described shrouding disc sand mold is used jointly with described front sand mold, described rear sand mold, described right sand mold and described left sand mold
In the top surface of integrated form Composite cylinder lid described in molding and all around shape;And
Pouring is sand mold, and described pouring is that sand mold includes:
Sprue, it erects setting, and the upper end of described sprue has cup, and described sprue is located at described integrated form and is combined
The side of the length direction of cylinder cap casting, the hypomere part of described sprue is formed inside described front sand mold, described directly pours
The upper portion in road is provided by casting sand mould;
Main cross gate, its two ends is provided with filter screen, and the bottom of described sprue is connected with described main cross gate, described main cross gate
Parallel with the width of described integrated form Composite cylinder lid foundry goods, described main cross gate is formed at described integral type chassis sand mold
Front end inside;
Two points of cross gates, this two points of cross gates are set up in parallel and the length direction with described integrated form Composite cylinder lid foundry goods
Parallel, this two points of cross gates are in the both sides of the lower section of described integrated form Composite cylinder lid foundry goods, described two points of cross gates
One end connect with the two ends of described main cross gate respectively, described two points of cross gates form U-shape, institute with described main cross gate
The other end stating two points of cross gates is respectively equipped with slag trap, and described two points of cross gates are respectively formed in described right sand mold and institute
State the inside of left sand mold;And
Several L-shaped ingates, it is uniformly arranged on the inner side of described two points of cross gates, the outlet of each L-shaped ingate
Hold as gradually-reducing shape, this several L-shaped ingate is used for importing molten metal in casting mold, and several L-shaped ingates described are also distinguished
It is formed at described right sand mold and the inside of described left sand mold.
2. the casting sand core group of integrated form Composite cylinder lid according to claim 1 is it is characterised in that described integral type bottom
The installation position of described filter screen is also integrated with disk sand mold.
3. the casting sand core group of integrated form Composite cylinder lid according to claim 1 is it is characterised in that described combination sand mold
Cylinder cap upper water sleeve sand mold, cylinder cap lower water jacket sand mold, air intake duct sand mold and exhaust duct sand mold adopt 3D printing forming technique once
Molding.
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CN201621018175.6U CN205967297U (en) | 2016-08-31 | 2016-08-31 | Casting psammitolite group of compound cylinder head of integrated form |
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CN201621018175.6U CN205967297U (en) | 2016-08-31 | 2016-08-31 | Casting psammitolite group of compound cylinder head of integrated form |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN106141095A (en) * | 2016-08-31 | 2016-11-23 | 广西玉柴机器股份有限公司 | The casting sand core group of integrated form Composite cylinder lid |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN106141095A (en) * | 2016-08-31 | 2016-11-23 | 广西玉柴机器股份有限公司 | The casting sand core group of integrated form Composite cylinder lid |
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