CN208357730U - The sand mould structure of Contiuum type cylinder head - Google Patents

Abstract

The utility model relates to a kind of sand mould structures of Contiuum type cylinder head.The sand mould structure of the Contiuum type cylinder head includes mo(u)ld top half, side type and mo(u)ld bottom half；The side type is integrated in the one side of the mo(u)ld top half, and the mo(u)ld top half and the mo(u)ld bottom half all have an inner cavity, and two inner cavities are oppositely arranged；The inner cavity of the mo(u)ld bottom half is provided with air intake duct core, exhaust duct core, water cavity core and bottom plate core, the core print of the inlet port of the air intake duct core extends towards the direction of the bottom plate core, and it connect to form air inlet core print with the bottom plate core, the water cavity core extends along far from air inlet core print direction, and the core print extended with the exhaust outlet direction of the exhaust duct core connect to form built-in core print, the built-in core print and the mo(u)ld top half are cooperatively connected, and the core print that the water cavity core extends along its length is connect with the bottom plate core.The sand mould structure of the Contiuum type cylinder head is convenient for sand removal, and can effectively avoid the problems such as disconnected core, core floatation occurs.

Description

The sand mould structure of Contiuum type cylinder head

Technical field

The present invention relates to casting technology fields, more particularly to a kind of sand mould structure of Contiuum type cylinder head.

Background technique

Cylinder head is the key components and parts on diesel engine, is divided into monomer-type cylinder head and Contiuum type cylinder head, wherein Monomer-type cylinder head be chiefly used in, low-speed diesel engine, Contiuum type cylinder head is chiefly used in Medium and high speed engine.And as country arranges The continuous promotion of standard is put, wherein the design to Contiuum type cylinder head proposes requirements at the higher level, the thickness of airway walls is more and more thinner, water Chamber shape is also more profile-followed.For example, six-in-line diesel engine, Contiuum type cylinder cap casting internal structure mainly includes air inlet Road, exhaust duct, upper water cavity, lower water cavity, 6 nozzle openings, loss of weight chamber etc., wherein air flue is hyperspace curved surface, and water cavity is wrapped in Around air flue, shape is also in hyperspace curved surface, and the wall thickness of inlet and outlet road wall is minimum, and wall thickness is only 6 ± 0.5mm, and Internal labyrinth is then all formed by sand core.

Also, since Contiuum type cylinder cap casting length is long, height is low, and water cavity is divided into two water being connected to up and down Chamber, when causing hand moulding, lower water cavity sand core length reaches 120mm, and height only has 50mm, and sand core weakness sectional dimension only has 14*11mm, therefore, sand core production are extremely difficult.For example, the production of water cavity core needs to be divided into multiple sand cores, and each sand core needs Air passage is set in centre, to realize in casting process and sand core is exhausted after casting.Therefore it under mould assembling when core, needs All water cavity gas off-takes are docked into intact guarantee sealed reliable, fiery phenomenon of easily choking when to avoid casting.Further Ground, needing to design when mating surface between each water cavity core is due to mould assembly has gap, so that it will form batch seam in casting process, It is difficult so as to cause cleaning, and batch seam also results in water cavity regional area section and becomes smaller, water velocity is unable to reach design value, from And Diesel Engine Complete Machine can not be run with maximum power, therefore, need to handle batch seam in group core to reduce it to diesel engine The influence of operation.

In this regard, although in the prior art, with nothings such as 3DP (Three-Dimensional Printing, 3D printing) The appearance of mould manufacturing technology, the forming method of the cylinder head of diesel engine have more selections.However for Contiuum type gas Cylinder cap, if the design of 3D printing sand mold is unreasonable, it is extremely difficult to will lead to sand removal since its type chamber is extremely complex.Meanwhile by It is small in the cross section for casting out hole of Contiuum type cylinder cap casting, it is large number of, if the design of 3D printing sand mold is unreasonable, hold very much The problems such as disconnected core, core floatation easily occurs, casting can be scrapped because of dimensional problem.

Summary of the invention

Based on this, it is necessary to which when for printing Contiuum type cylinder head using 3DP printing technique in the prior art, sand removal is tired Difficulty, and the problems such as be easy to happen disconnected core, core floatation, a kind of sand mould structure of Contiuum type cylinder head is provided.

A kind of sand mould structure of Contiuum type cylinder head, including mo(u)ld top half, side type and mo(u)ld bottom half；The side type is integrated on described The one side of type, the mo(u)ld top half and the mo(u)ld bottom half all have an inner cavity, and two inner cavities are oppositely arranged；The mo(u)ld bottom half it is interior Chamber is provided with air intake duct core, exhaust duct core, water cavity core and bottom plate core, and the core print of the inlet port of the air intake duct core is towards institute The direction for stating bottom plate core extends, and connect to form air inlet core print with the bottom plate core, and the water cavity core is along far from the air inlet Mouth core print direction extends, and the core print extended with the exhaust outlet direction of the exhaust duct core connect to form built-in core print, described Built-in core print and the mo(u)ld top half are cooperatively connected, and the core print that the water cavity core extends along its length is connect with the bottom plate core.

The mo(u)ld bottom half is additionally provided with running gate system core in one of the embodiments, and the running gate system core includes horizontal pours Road and sprue, the sprue are vertically installed in one end of the cross gate, the other end of the cross gate it is integrally disposed in On the mo(u)ld bottom half.

The cross gate includes the first cross gate, the second cross gate and arc running channel, institute in one of the embodiments, State that the first cross gate is vertical with the sprue to be connect, second cross gate is set to first cross gate far from described straight The side of running channel, one end of the arc running channel are connect with second cross gate, the other end of the arc running channel with it is described Mo(u)ld bottom half connection.

The quantity of second cross gate and the arc running channel is respectively provided with multiple in one of the embodiments, respectively Second cross gate is respectively arranged at the side that first cross gate deviates from the sprue, each arc running channel and each Second cross gate is correspondingly arranged and connect with the mo(u)ld bottom half.

The running gate system core further includes filter screen in one of the embodiments, and the filter screen is set to described Between one cross gate and second cross gate.

The die joint of the filter screen and the sand mould structure of the Contiuum type cylinder head is neat in one of the embodiments, It is flat.

There is between the die joint and the bottom surface of the Contiuum type cylinder head assembly building in one of the embodiments, Gap.

In one of the embodiments, the air intake duct core in rake shape distribution setting, the exhaust duct core have it is multiple, Each exhaust duct core is reversely inserted between each teeth of the rake.

In one of the embodiments, the mo(u)ld bottom half with a thickness of 50~80mm.

The top surface of the mo(u)ld top half is provided with the sprue and riser runner in one of the embodiments, described directly to pour The height of road and the riser runner along the top surface of the mo(u)ld top half is 30~50mm.

The sand mould structure of above-mentioned Contiuum type cylinder head, by the integrally disposed side type of the one side in the mo(u)ld top half, this Sample can carry out sand removal operation by the side type convenient for the inlet location to the sand mould structure；And further by by institute The core print for stating air intake duct core, the bottom plate core and the water cavity core is interconnected and fixed, while the exhaust duct core being formed The built-in core print and the mo(u)ld top half are cooperatively connected by built-in core print, so that the rigidity of the sand mould structure is effectively promoted, And the general of the problems such as disconnected core, core floatation occur for each sand core in the sand mould structure of the Contiuum type cylinder head is effectively reduced simultaneously Rate.

Detailed description of the invention

Fig. 1 is the assembling structure schematic diagram of the sand mould structure of the Contiuum type cylinder head of an embodiment.

Fig. 2 is the mo(u)ld bottom half structural schematic diagram of the sand mould structure of the Contiuum type cylinder head of an embodiment.

Fig. 3 is the schematic perspective view of the Contiuum type cylinder cap casting of an embodiment.

Fig. 4 is the mo(u)ld top half structural schematic diagram of the sand mould structure of the Contiuum type cylinder head of an embodiment.

Specific embodiment

To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing Give better embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein Described embodiment.On the contrary, the purpose of providing these embodiments is that making to understand more the disclosure Add thorough and comprehensive.

It should be noted that it can directly on the other element when element is referred to as " being set to " another element Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ", " right side ", " top ", " bottom ", " bottom end ", " top " and similar statement for illustrative purposes only, are not offered as being only One embodiment.

Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more Any and all combinations of relevant listed item.

In one embodiment, a kind of sand mould structure of Contiuum type cylinder head, including mo(u)ld top half, side type and mo(u)ld bottom half；The side Type is integrated in the one side of the mo(u)ld top half, and the mo(u)ld top half and the mo(u)ld bottom half all have an inner cavity, and two inner cavities are set relatively It sets；The inner cavity of the mo(u)ld bottom half is provided with air intake duct core, exhaust duct core, water cavity core and bottom plate core, the air inlet of the air intake duct core The core print at mouth end extends towards the direction of the bottom plate core, and connect to form air inlet core print with the bottom plate core, the water cavity Core extends along far from air inlet core print direction, and connect to be formed with the core print that the exhaust outlet direction of the exhaust duct core extends Built-in core print, the built-in core print and the mo(u)ld top half are cooperatively connected, the core print that the water cavity core extends along its length with The bottom plate core connection.

In another embodiment, a kind of sand mould structure of Contiuum type cylinder head, including mo(u)ld top half, side type and mo(u)ld bottom half；For example, The side type is integrated in the one side of the mo(u)ld top half, and the mo(u)ld top half and the mo(u)ld bottom half all have an inner cavity, and two inner cavities It is oppositely arranged；For example, the inner cavity of the mo(u)ld bottom half is provided with air intake duct core, exhaust duct core, water cavity core and bottom plate core, the air inlet The core print of the inlet port of road core extends towards the direction of the bottom plate core, and connect to form air inlet core with the bottom plate core Head；For example, the water cavity core extends along far from air inlet core print direction, and prolong with the exhaust outlet direction of the exhaust duct core The core print stretched connects to form built-in core print, and the built-in core print and the mo(u)ld top half are cooperatively connected；For example, water cavity core edge The core print that length direction extends is connect with the bottom plate core.

The sand mould structure of above-mentioned Contiuum type cylinder head, by the integrally disposed side type of the one side in the mo(u)ld top half, this Sample can carry out sand removal operation by the side type convenient for the inlet location to the sand mould structure；And further by by institute The core print for stating air intake duct core, the bottom plate core and the water cavity core is interconnected and fixed, while the exhaust duct core being formed The built-in core print and the mo(u)ld top half are cooperatively connected by built-in core print, so that the rigidity of the sand mould structure is effectively promoted, And the general of the problems such as disconnected core, core floatation occur for each sand core in the sand mould structure of the Contiuum type cylinder head is effectively reduced simultaneously Rate.

The sand mould structure of the Contiuum type cylinder head is illustrated combined with specific embodiments below, to further understand The inventive concept of the sand mould structure of Contiuum type cylinder head is stated, referring to FIG. 1 to FIG. 4, a kind of sand mould structure of Contiuum type cylinder head 10, including mo(u)ld top half 100, side type 200 and mo(u)ld bottom half 300；The side type 200 is integrated in the one side of the mo(u)ld top half 100, it is described on Type 100 and the mo(u)ld bottom half 300 all have an inner cavity, and two inner cavities are oppositely arranged.That is, the mo(u)ld top half 100 with it is described under Type 300 mutually fastens, and the side type 200 is arranged in the lateral location of the mo(u)ld top half 100, forms the sand with sand mold chamber in this way Type structure.It should be understood that it is intracavitary by the potting syrup injection sand mold that will form the Contiuum type cylinder head, by protecting Knockout, ball blast are carried out after the casting ontology heavy wall spot temperature of the Contiuum type cylinder head is down to 400 DEG C or less after temperature processing The casting of the Contiuum type cylinder head, is finally put into heat-treatment furnace and carries out stress relief annealing by processing.For example, soaking time temperature When degree is greater than or equal to 48, it is preferable that when the soaking time temperature is 55.In one embodiment, the thickness of the mo(u)ld bottom half For 50~80mm.Wherein it should be noted that in casting industry, the thickness of the mo(u)ld bottom half can also be referred to as mold thickness.It is excellent Selection of land, the mo(u)ld bottom half with a thickness of 60mm.Specifically, when implementing sand mold design, by the built-in cuboid of three-dimensional software Sand base sets 50~80mm in the overall size Zhou Yanshe of three-dimensional casting technique, to can guarantee the mo(u)ld top half 100 designed With the structural stability of the mo(u)ld bottom half 300.

Referring to Fig. 2, specifically, the inner cavity of the mo(u)ld bottom half 300 is provided with air intake duct core 310, exhaust duct core 320, water cavity Prolong in the direction of core 330 and bottom plate core 340, core print towards the bottom plate core 340 of the inlet port of the air intake duct core 310 It stretches, and connect to form air inlet core print 350 with the bottom plate core 340, the water cavity core 330 is along far from the air inlet core print 350 directions extend, and the core print extended with the exhaust outlet direction of the exhaust duct core 320 connect to form built-in core print 360, institute Built-in core print 360 is stated to be cooperatively connected with the mo(u)ld top half 100, the core print that the water cavity core 330 extends along its length with it is described Bottom plate core 340 connects.For example, the air intake duct core 310 is one air intake duct core of the six directions；For example, the air intake duct core 310 is in rake Shape distribution setting, the exhaust duct core 320 have it is multiple, each exhaust duct core 320 is reversely inserted in each tooth of the rake Between tooth.For example, there are six the quantity tools of the exhaust duct core.In this way, by by the air intake duct core 310 of six integration types with It is mutually inserted setting between six exhaust duct cores 320, to can effectively ensure that the air intake duct core 310 and the exhaust duct The structure connective stability of core 320.Also, by the way that the side type 200 is arranged, by a wherein side elevation for the mo(u)ld top half 100 point It cuts out, so as to convenient for the product sand by the side type 200 cleaning at one inlet location of the six directions.

Please continue to refer to Fig. 2, the water cavity core 330 is used to form the water cavity of the Contiuum type cylinder head, the air intake duct Core 310 and the exhaust duct core 320 are for respectively forming the air intake duct and exhaust duct of the Contiuum type cylinder head, by described Package setting air intake duct and exhaust duct in water cavity, in this way when diesel engine is run, it can be achieved that the air intake duct of cylinder head with High-temperature gas in exhaust duct is cooled down.Wherein, the water cavity core 300 includes the mutually folded upper water cavity core and lower water cavity set Core, by the way that upper water cavity core to be merged to setting with lower water cavity core to form the water cavity cored structure of stable structure, to can guarantee diesel oil When machine is run, the heat in each air flue is taken away using high-velocity flow.

For example, the bottom plate core 340 is embedded at the interior intracavitary of the mo(u)ld bottom half 300, for example, the bottom plate core 340 with it is described Mo(u)ld bottom half 300 is integrally formed.In this way, the air intake duct core 310, the exhaust duct core 320 and the water cavity core 330 respectively with institute The connection of bottom plate core 340 is stated, each type core stabilization is integrated on the mo(u)ld bottom half 300 to can realize.Specifically, the air intake duct The core print of core 310 extends towards the direction of the bottom plate core 340, and connect to form air inlet core print with the bottom plate core 340 350.Specifically, extend the core print at the air inlet of the air intake duct core 310, and so as to connect with the bottom plate core 340 It connects to form the air inlet core print 350, so that the mounting stability of the airway core 310 be effectively ensured.Wherein by along institute The exhaust outlet direction for stating exhaust duct core 320 extends core print, by the upper water cavity and the lower water cavity by extending its side core Head, so that the extension core print of the exhaust duct core 320 is connected with the extension core print of the upper water cavity and the lower water cavity To form the built-in core print 360.For example, the cross section of the built-in core print 360 is dykes and dams shape.For example, described built-in Formula core print and the mo(u)ld top half 100 are cooperatively connected.In this way by the built-in core print 360 of setting dykes and dams shape, to can realize The mounting groove 110 opened up with the mo(u)ld top half 100 is cooperatively connected so that the mo(u)ld top half 100 formed with the mo(u)ld bottom half 300 it is good Matching relationship.Further, the core print that the water cavity core 330 extends along its length is connect with the bottom plate core 340.I.e. in institute State on the length direction of water cavity core 330 by water cavity casting technique hole extend the water cavity core 330 core print and with the bottom plate Core 340 is connected, to realize that the water cavity core 330 is reliably connected with the bottom plate core 340, then realizes the water cavity core 330 are set in the mo(u)ld bottom half 300 with the bottom plate core 340 stabilization, so that the rigidity of the sand mould structure 10 is effectively promoted, And the general of the problems such as disconnected core, core floatation occur for each sand core in the sand mould structure 10 of the Contiuum type cylinder head is effectively reduced simultaneously Rate.

In order to avoid flinging the water cavity 330 during the sand mould structure to the Contiuum type cylinder head is poured Core please refers to Fig. 2 and Fig. 3 in one embodiment, and the mo(u)ld bottom half 300 is additionally provided with running gate system core 380, the casting System core 380 includes cross gate 381 and sprue 382, and the sprue 382 is vertically installed in the one of the cross gate 381 End, the other end of the cross gate 381 are integrally disposed on the mo(u)ld bottom half 300.For example, the cross section of the cross gate 381 is Rectangle, for example, the cross section of the sprue 382 is circle.For example, the perforation of sprue 382 is arranged in the cross gate On 381.It should be understood that the cross gate 381 all has running channel chamber with the sprue 382 and is interconnected, it is each described Running channel chamber is connected to the sand mold chamber of the sand mould structure 10, and such potting syrup enters the sand mold chamber by the running channel chamber It is interior, after the series of processes such as isothermal solidifying, the casting mold structure of the Contiuum type cylinder head can be formed.In an embodiment In, also referring to Fig. 1 and Fig. 4, the top surface of the mo(u)ld top half 100 is provided with the sprue 382 and riser runner 120, described The height of sprue 382 and the riser runner 120 along the top surface of the mo(u)ld top half 100 is 30~50mm.Preferably, described directly to pour The height of road 382 and the riser runner 120 along the top surface of the mo(u)ld top half 100 is 20mm.I.e. in the present embodiment, pass through by The sprue 382 is independently set to the top surface of the mo(u)ld top half 100 with the riser runner 120, so as to greatly save Manufacture the sand mould material of the mo(u)ld top half 100.In a preferred embodiment, the sprue 382 divides with the riser runner 120 It is not movably set in the top surface of the mo(u)ld top half 100；For example, the sprue 382 is with the riser runner 120, movable screw is set respectively In the top surface of the mo(u)ld top half 100.The sprue 382 is set to the mo(u)ld top half 100 with the riser runner 120 difference movable screw The top surface that sand mold binder is adhered to the mo(u)ld top half 100 is respectively adopted in top surface.The i.e. described sprue 382 and the riser runner 120 can activity separate the mo(u)ld top half 100, in this way can be convenient for according to practical condition, with changing the sprue 382 and institute State riser runner 120.

Further, please continue to refer to Fig. 3, the cross gate 381 includes the first cross gate 3811, the second cross gate 3812 And arc running channel 3813, first cross gate 3811 is vertical with the sprue 382 to be connect, second cross gate 3812 Be set to side of first cross gate 3811 far from the sprue 382, one end of the arc running channel 3813 with it is described The connection of second cross gate 3812, the other end of the arc running channel 3813 are connect with the mo(u)ld bottom half 300.For example, described first is horizontal Running channel 3811 and second cross gate 3812 are integrally formed；For another example, second cross gate 3812 and the arc running channel 3813 are integrally formed.One example is that the quantity of second cross gate 3812 and the arc running channel 3813 is respectively provided with more A, each second cross gate 3812 is respectively arranged at the side that first cross gate 3811 deviates from the sprue 3813, Each arc running channel 3813 is correspondingly arranged with each second cross gate 3812 and connect with the mo(u)ld bottom half 300.That is, directly connecting Lead to second cross gate 3812 of the sand mold chamber of the mo(u)ld bottom half 300 and the arc running channel 3813 be correspondingly arranged it is multiple, in this way It can be convenient for runner boxing liquid, and it is intracavitary so that potting syrup is slowly into the sand mold, to effectively avoid to the type Intracavitary each sand core causes impact failure.Also, further by setting connect second cross gate 3812 with it is described under The arc running channel 3813 of the sand mold chamber of type 300, so as to utilization arc running channel 3813 so that the velocity of liquid assets of potting syrup Further slowed down, to further avoid the dynamics that potting syrup impacts each sand core.It should be noted that connecting to improve The presentation quality of body formula cylinder cap casting needs to improve pouring temperature in pouring technology, and needs to keep enough pressures simultaneously The case time, casting may make sufficiently to discharge stress in this way, to avoid Contiuum type cylinder cap casting that buckling deformation problem occurs.

In order to further ensure the castability of Contiuum type cylinder cap casting, in one embodiment, the casting system Core 380 of uniting further includes filter screen 3814, and the filter screen 3814 is set to first cross gate 3811 and horizontal pours with described second Between road 3812.It should be understood that by being arranged between first cross gate 3811 and second cross gate 3812 The filter screen 3814, so that it is laggard to may make that the potting syrup for being first into first cross gate 3811 is sufficiently filtered Enter into second cross gate 3812, the purity for entering the intracavitary potting syrup of the sand mold is then ensured, so that body The castability of formula cylinder cap casting is effectively promoted.

Further, in one embodiment, described in order to protect weak sand core structure not stress in casting process Filter screen 3814 is flushed with the die joint of the sand mould structure 10 of the Contiuum type cylinder head.Wherein, the die joint is on described The plane of 300 joint of type 100, the side type 200 and the mo(u)ld bottom half.And it is quick-fried due to the casting of the Contiuum type cylinder head Fried face is crucial force part, and when casting is disposed at bottom surface or the side of pouring position, i.e., by detonation front Side bottom influent stream, and using open and proportion expression running gate system to the casting of the avoidable impact Contiuum type cylinder head Detonation front.One example is that have fit-up gap between the die joint and the bottom surface of the Contiuum type cylinder head.Exist In this implementation, it is die joint along the face of the bottom surface certain distance away from Contiuum type cylinder cap casting, can be formed in this way in step type Die joint, sand removal work can be carried out so as to save the step of independently opening up sand removal window.

In order to promoted the Contiuum type cylinder head sand mould structure production efficiency, it is described in a preferred embodiment The sand mould structure of Contiuum type cylinder head is made of 3D printing method.Specifically, the 3D printing method includes by three-dimensional The reduced scale of the sand mould structure is added on sand mold using the scaling order such as body in software, exports .STL data, by its according to Printing thickness is sliced, and will be completed the three-dimensional data after being sliced and is imported 3D printer, print parameters are arranged, starting printer is beaten Print.In one embodiment, the 3D printing method includes printing the Contiuum type cylinder head using 50~100 mesh quartz sand Sand mould structure, for another example, the 3D printing method includes printing the Contiuum type cylinder head using 70~140 Buddha's warrior attendant ceramsite sand Sand mould structure.One example is that the binder used in the 3D printing method is low nitrogen furan resin, and wherein resin sand is sent out Tolerance is less than or equal to 12g/ml.For example, every thickness degree of the sand mould structure of the 3D printing method printing Contiuum type cylinder head For 0.28~0.4mm, it is preferable that every layer of the sand mould structure of printing Contiuum type cylinder head is with a thickness of 0.32mm.And it is printing When need to test Contiuum type cylinder head sand mould structure sand mold intensity and printing precision, specific test result requires sand mold Intensity is greater than or equal to 7MPa, and printing precision controls within ± 0.35mm.Further, the 3D printing method includes by institute State the mo(u)ld top half 100, the mo(u)ld bottom half 300 and the side type 200 of the sand mould structure of Contiuum type cylinder head using 0.4~ The compressed air of 0.8MPa carries out wind to it and washes all loose sands to remove；For example, the 3D printing method further includes applying, drying Process that is dry and preparing mould assembly.Further, the mould assembly process include by drying after the mo(u)ld bottom half put it is smooth, in institute The low gas forming amount casting sand mold binder for prolonging all even spread Φ 4-8mm for stating sand mould structure, by the side type from upper side Be assemblied on the mo(u)ld bottom half, and pilot hole be aligned, finally by guide rod be inserted into the diagonal and mo(u)ld bottom half of the mo(u)ld top half with The side type mould assembly.Further, told 3D printing method further includes the process that is loaded, and the process that is loaded includes using 4 groups of cards The mo(u)ld top half of the Contiuum type cylinder head, the side type and the mo(u)ld bottom half are carried out clamping and form core packet by tool.In this way, can prevent Only side type displacement, runout and the mo(u)ld top half rise type the problem of so that the sand mould structure of the Contiuum type cylinder head Reach casting condition.In casting, by the way that core packet is adjusted in sandbox, stream resin floor sand to riser runner gas outlet lower end 30mm Left and right stops.Finally implement tight melting, casting, the pressure processes such as case and knockout.Specifically, the molten iron melted is injected into sand mold In chamber, when heat preservation is greater than or equal to 48, fallen after the casting ontology heavy wall spot temperature of Contiuum type cylinder head is down to 400 DEG C or less Sand, ball blast simultaneously remove the attachments such as running gate system, riser, and the Contiuum type cylinder cap casting cleaned out is put into heat-treatment furnace Middle carry out stress relief annealing.Last examinations and shipping process.Specifically, according to customer requirement to the Contiuum type cylinder head Casting carries out one by onechecking warehousing after passing, shipping.

Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, all should be considered as described in this specification.

The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.

Claims (10)

1. a kind of sand mould structure of Contiuum type cylinder head, which is characterized in that including mo(u)ld top half, side type and mo(u)ld bottom half；

The side type is integrated in the one side of the mo(u)ld top half, and the mo(u)ld top half and the mo(u)ld bottom half all have an inner cavity, and described in two Inner cavity is oppositely arranged；

The inner cavity of the mo(u)ld bottom half is provided with air intake duct core, exhaust duct core, water cavity core and bottom plate core, the air inlet of the air intake duct core The core print at mouth end extends towards the direction of the bottom plate core, and connect to form air inlet core print with the bottom plate core, the water cavity Core extends along far from air inlet core print direction, and connect to be formed with the core print that the exhaust outlet direction of the exhaust duct core extends Built-in core print, the built-in core print and the mo(u)ld top half are cooperatively connected, the core print that the water cavity core extends along its length with The bottom plate core connection.

2. the sand mould structure of Contiuum type cylinder head according to claim 1, which is characterized in that the mo(u)ld bottom half, which is additionally provided with, to be poured Injection system core, the running gate system core include cross gate and sprue, and the sprue is vertically installed in the one of the cross gate End, the other end of the cross gate are integrally disposed on the mo(u)ld bottom half.

3. the sand mould structure of Contiuum type cylinder head according to claim 2, which is characterized in that the cross gate includes first Cross gate, the second cross gate and arc running channel, first cross gate is vertical with the sprue to be connect, and described second horizontal pours Road is set to the side of first cross gate far from the sprue, one end of the arc running channel and second cross gate Connection, the other end of the arc running channel are connect with the mo(u)ld bottom half.

4. the sand mould structure of Contiuum type cylinder head according to claim 3, which is characterized in that second cross gate and institute The quantity for stating arc running channel is respectively provided with multiple, and each second cross gate is respectively arranged at first cross gate away from described The side of sprue, each arc running channel are correspondingly arranged with each second cross gate and connect with the mo(u)ld bottom half.

5. the sand mould structure of Contiuum type cylinder head according to claim 3 or 4, which is characterized in that the running gate system core It further include filter screen, the filter screen is set between first cross gate and second cross gate.

6. the sand mould structure of Contiuum type cylinder head according to claim 5, which is characterized in that the filter screen and the company The die joint of the sand mould structure of body formula cylinder head flushes.

7. the sand mould structure of Contiuum type cylinder head according to claim 6, which is characterized in that the die joint and the company There is fit-up gap between the bottom surface of body formula cylinder head.

8. the sand mould structure of Contiuum type cylinder head according to claim 1, which is characterized in that the air intake duct core is in rake Shape distribution setting, the exhaust duct core have it is multiple, each exhaust duct core is reversely inserted between each teeth of the rake.

9. the sand mould structure of Contiuum type cylinder head according to claim 1, which is characterized in that the mo(u)ld bottom half with a thickness of 50 ~80mm。

10. the sand mould structure of Contiuum type cylinder head according to claim 2, which is characterized in that the top surface of the mo(u)ld top half is set It is equipped with the sprue and riser runner, the height of the sprue and the riser runner along the top surface of the mo(u)ld top half is 30 ~ 50mm。