CN101239374A - Ingot casting mould - Google Patents

Ingot casting mould Download PDF

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Publication number
CN101239374A
CN101239374A CN 200810007049 CN200810007049A CN101239374A CN 101239374 A CN101239374 A CN 101239374A CN 200810007049 CN200810007049 CN 200810007049 CN 200810007049 A CN200810007049 A CN 200810007049A CN 101239374 A CN101239374 A CN 101239374A
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CN
China
Prior art keywords
die
cavity
distribution
mould
mold closing
Prior art date
Application number
CN 200810007049
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Chinese (zh)
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CN101239374B (en
Inventor
佐藤公俊
吉井大
Original Assignee
雅马哈发动机株式会社
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Priority to JP2007015066 priority Critical
Priority to JP2007-015066 priority
Priority to JP2007015066A priority patent/JP5026806B2/en
Application filed by 雅马哈发动机株式会社 filed Critical 雅马哈发动机株式会社
Publication of CN101239374A publication Critical patent/CN101239374A/en
Application granted granted Critical
Publication of CN101239374B publication Critical patent/CN101239374B/en

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Abstract

The present invention resolves the problem of evenly distributing a molten metal into multiple die cavities, ensuring preparing multiple molds having highly even quality in the casting process. In order to resolving the problem, the present invention provides an ingot casting die. A group of first and second dies capable of opening and closing are provided in the die. Multiple die cavities are formed in the die to prepare multiple molds having same shape at the same time. A pouring basin is provided to introduce the molten metal piston side gate to each die cavity. The pouring basin has a first distribution part and a second distribution part for each die cavity, the first distribution part extends from the gate to the position corresponding to each die cavity squarely in the directions of die opening and closing, the second distribution part is used for connecting the die cavity and the first distribution part. The second distribution part has extending parts of the die opening and closing directions extending from the downstream end of the first distribution part parallel to the die opening and closing directions used for each die cavity.

Description

Ingot casting mould

Technical field

The present invention relates to have the ingot casting mould that is formed on one group of a plurality of die cavity in the mould.

Background technology

As for example disclosed in patent document 1, conventional die castings facility commonly used are useful on the single die cavity of one group of fixed die and removable mould.In order to improve the productivity ratio of this die casting machine, can expect in one group of mould, providing a plurality of die cavitys, as shown in figure 12.

Figure 12 is the cutaway view that is formed with traditional ingot casting mould of two die cavitys.Show in the drawings: mould 101, the first and second die cavitys 102 and 103, the running channel 104 and 105 that forms for each die cavity, and cast gate 106 respectively.First and second die cavitys 102 and 103 are formed mutually the same shape certainly, make that the shape of product (mo(u)lding) is mutually the same.What these die cavitys 102 and 103 were formed on mould 101 is on equidistant position of both sides at center with cast gate 16.

These die cavitys 102 and 103 are connected to the downstream of running channel 104 and 105 respectively by the inlet 107 that is separately positioned on three positions.In the position of the inlet 107 in a die cavity 102 and another die cavity 103 is identical.

Form two running channels 104 and 105, make motlten metal be assigned to three inlets 107 from cast gate 106.These running channels 104 and 105 are formed a side and the opposite side that extends to mould 101 from cast gate 106, thereby cast gate 106 is connected to inlet 107 through the shortest distance.

[patent document]

JP-H7-73783

Summary of the invention

[problem that the present invention solves]

But Gou Zao conventional die castings mould 101 always can not cast two products with equal in quality as mentioned above, and productivity ratio is not enhanced the degree of expection.

As carrying out result of experiment repeatedly for two inequality or not essentially identical reasons of mo(u)lding quality, the inventor has recognized that filling a plurality of die cavitys with motlten metal does not reach good balance between first and second die cavitys 102 and 103.In other words, motlten metal is injected in first die cavity 102 by the right side from accompanying drawing, and is injected into second die cavity 103 from the left side.As a result, can not between two die cavitys 102 and 103, make the molten metal flow state that flows in two die cavitys 102 and 103 equate.Flow regime is molten metal flow direction, flowing velocity and flow rate etc.

The present invention is done and solves top problem.Because, the purpose of this invention is to provide a kind of ingot casting mould, it can be assigned to a plurality of die cavitys equably with motlten metal under identical flow regime, and casts a plurality of mo(u)ldings with high homogeneous quality in a casting process.

[means of dealing with problems]

To achieve these goals, the invention provides a kind of ingot casting mould, comprising: a plurality of be formed on one group can open and close fixed die and the die cavity in the removable mould, described a plurality of die cavitys make a plurality ofly have identical shaped product and can be cast simultaneously; And running channel, described running channel is arranged in the described fixed die, be used for motlten metal is incorporated into each die cavity by the cast gate that is connected to piston, wherein, described running channel has first distribution portion and second distribution portion, described first distribution portion and die sinking and mold closing direction extend to position corresponding to each die cavity from the described oral-lateral that waters with meeting at right angles, and described second distribution portion has the downstream from described first distribution portion that is used for each die cavity and is parallel to die sinking and the mold closing direction extension that described die sinking and mold closing direction are extended.

Claim 2 of the present invention relates to the ingot casting mould of claim 1, wherein, in described second distribution portion each also has the cavity side running channel that is used for each die cavity, described cavity side running channel extends to each die cavity from the cavity side cast gate that the downstream by described die sinking and mold closing direction extension constitutes, these cavity side running channels extend from described cavity side cast gate edge and described die sinking and the rectangular direction of mold closing direction respectively, and the formation shape of these cavity side running channels makes motlten metal flow in the described die cavity under flow regime identical for described a plurality of die cavitys.

Claim 3 of the present invention relates to the ingot casting mould of claim 1, wherein, fixed die is made of bed die with the cast gate that is connected to described piston and intermediate die, described intermediate die is arranged between described bed die and the described removable mould, with along described die sinking and mold closing direction towards moving and move away described bed die with described bed die, described die cavity is formed between described intermediate die and the described removable mould, described first distribution portion is formed in the part relative with end face described intermediate die described bed die, and the described die sinking of described second distribution portion and mold closing direction extension are formed and pass described intermediate die.

Claim 4 of the present invention relates to the ingot casting mould of claim 2, wherein, described fixed die is made of bed die with the cast gate that is connected to described piston and intermediate die, described intermediate die is arranged between described bed die and the described removable mould, with along described die sinking and mold closing direction towards moving and move away described bed die with described bed die, described die cavity is formed between described intermediate die and the described removable mould, first distribution portion is formed between described bed die and the described intermediate die, the described die sinking of described second distribution portion and mold closing direction extension are formed and pass described intermediate die, and described cavity side running channel is formed between described intermediate die and the described removable mould.

Claim 5 of the present invention relates to each described ingot casting mould in the claim 1 to 4, wherein, described first distribution portion of described running channel is made of upstream portion and a plurality of component, described upstream portion connects the described cast gate that is positioned at described piston side, described a plurality of component is branched off into each die cavity from described upstream portion, and described component is formed also both sides at the center line of described upstream portion symmetrically by line.

[effect of the present invention]

According to the present invention, be assigned to each die cavity by the motlten metal that cast gate flows to the running channel by first distribution portion from piston.When motlten metal stream flow to the die sinking of second distribution portion and the mold closing direction extension from first distribution portion, the direction that is assigned to the motlten metal stream of each die cavity was alignd with die sinking and mold closing direction.Therefore.Motlten metal flows to the die cavity from second distribution portion under flow regime identical for all die cavitys.

Therefore, according to the present invention, because motlten metal second distribution portion from running channel under the state of uniform distribution flows to each die cavity, so a plurality of die cavitys are filled with the state of good equilibrium.As a result, the present invention can provide a kind of ingot casting mould, and this ingot casting mould can be cast a plurality of products with high homogeneous quality in a casting process.

According to second invention, when motlten metal when the die sinking of second distribution portion and mold closing direction extension flow into the cavity side running channel, the motlten metal flow direction has changed the right angle angle with respect to die sinking and mold closing direction, and motlten metal is flowing into each die cavity under the flow regime uniformly.Therefore, motlten metal a plurality of die cavitys can be injected with said method,, and a kind of ingot casting mould that improves the mo(u)lding quality can be provided so that mo(u)lding has first water.

Invention scheme according to claim 3 and 4, because intermediate die and removable mould are removed from bed die after casting process, so the mo(u)lding in mo(u)lding and first distribution portion that solidify to form by the motlten metal in first distribution portion of running channel is exposed in the cast gate that is solidify to form by the motlten metal in cast gate.Because it is outwards outstanding that these mo(u)ldings are formed from the end face of intermediate die, so they are removed easily.Remove in the cast gate and mo(u)lding that these mo(u)ldings in first distribution portion make motlten metal in second distribution portion of running channel solidify to form can be taken out towards die cavity from intermediate die.Therefore, can take off whole mo(u)lding from mould by opening intermediate die and removable mould with product section.Therefore, according to the present invention, as mentioned above, can easily remove by the mo(u)lding in the mo(u)lding in the cast gate and in the cast gate that solidify to form of the motlten metal in first distribution portion of running channel and first distribution portion.

Therefore, can provide a kind of ingot casting mould, described ingot casting mould extends and forms under the situation of complicated shape along three-dimensional at running channel, also is applicable to the casting process that comprises the step of removing redundance.

According to the invention scheme of claim 5, motlten metal can be assigned to more accurately the component that forms for each die cavity, make that flow regime (molten metal flow direction, flowing velocity and flow rate) is identical for each die cavity.Because, can be so that minimize by the difference of the quality of a plurality of mo(u)ldings of a casting process manufacturing.

Description of drawings

Fig. 1 is the cutaway view of ingot casting mould according to the present invention before closure.

Fig. 2 is the cutaway view of ingot casting mould according to the present invention when casting.

Fig. 3 is the cutaway view that wherein separates with bed die after casting process according to the removable mould of ingot casting mould of the present invention and intermediate die.

Fig. 4 is the cutaway view according to the cut state of the mo(u)lding in the mo(u)lding and first distribution portion in the wherein cast gate of the present invention.

To be wherein removable mould with die casting separate with intermediate die Fig. 5 makes intermediate die stay the cutaway view on the middle stall position among Fig. 4 simultaneously.

Fig. 6 is the front view that wherein forms the example of the inserts of die cavity of removable mould and main mould.

Fig. 7 is the front view according to the structure of the motlten metal part that flows therein of ingot casting mould of the present invention.

Fig. 8 is the oblique view according to the structure of the motlten metal part that flows therein of ingot casting mould of the present invention.

Fig. 9 is the side view of the shape of formed mo(u)lding when motlten metal solidifies in running channel and die cavity.

Figure 10 is the front view of the running channel among another embodiment.

Figure 11 is the cutaway view of structure with mould of running channel shown in Figure 10.

Figure 12 is the cutaway view that is formed with the conventional die castings mould of two die cavitys.

Label declaration:

Ingot casting mould 1

Bed die 3

Intermediate die 4

Outer face 4b

Fixed die 5

Removable mould 6

First distribution portion 10

Cast gate 15

First inserts 22

Inlet lining 23

Second inserts 26

Die cavity 31

Inlet 32

Cavity side running channel 33

Second distribution portion 51

Die sinking and mold closing direction extension 51a

Cavity side inlet 51b

Upstream portion 52

Component 53

The specific embodiment

(first embodiment)

Arrive the ingot casting mould of Fig. 9 description below with reference to Fig. 1 as embodiments of the invention.Fig. 1 to 5 is cutaway views of ingot casting mould of the present invention.Fig. 1 shows the state of mould before closure.Fig. 2 shows the state of mould when casting.Fig. 3 shows state (middle standstill state) after the casting that wherein removable mould and intermediate die removed from bed die.Fig. 4 shows the cut state of mo(u)lding in the mo(u)lding and first distribution portion in the cast gate wherein.Fig. 5 shows wherein removable mould and is removed from intermediate die and make intermediate die stay the state on the middle stall position Fig. 4 simultaneously.

Fig. 6 is the front view of the example of removable mould.Fig. 7 is the front view according to the structure of the motlten metal part that flows therein of ingot casting mould of the present invention.Fig. 8 is the oblique view with a part.Fig. 9 is the side view of the shape of formed mo(u)lding when motlten metal solidifies in cast gate, running channel and die cavity, and product section illustrates with section.

These accompanying drawings show the ingot casting mould 1 as embodiments of the invention.This ingot casting mould 1 is the mould that is used to carry out so-called high speed, high pressure diecasting, and is installed on the support 2 of die casting machine (not shown).Ingot casting mould 1 is made up of following: by the bed die 3 of the leftmost side that is positioned at Fig. 1 and the fixed die 5 that constitutes with the intermediate die 4 of the former adjacency; And the removable mould 6 that is positioned at the rightmost side of Fig. 1.

The bed die 3 of fixed die 5 is fixed on the support 2, and is provided with four tie-rods 7 of the direction of advancing and the distance of the intermediate die 4 that is used to limit, and this will be described later.Bed die 3 also has: piston sleeve 8 and running channel are used to form first distribution portion 10 (referring to Fig. 7 and 8) of the running channel (9) that will be described later with inserts 11.The piston end 12 that can move freely is assembled in the piston sleeve 8.Piston end 12 and piston rod 13 constitute piston 14 used in the present invention.Running channel is formed with cast gate 15 with inserts 11, and cast gate 15 connects piston sleeve 8 and is used to form the groove 16 of running channel.

As shown in Figure 1, intermediate die 4 is made of following: the first main mould 21 and first inserts 22, described first inserts 22 is assemblied in and is fixed on the first main mould 21, and intermediate die 4 is supported on the support 2 in the mode of moving freely, but moving direction is limited by tie-rod 7.Tie-rod 7 is set on the position corresponding to four bights of intermediate die 4, with moving of the left and right directions that limits intermediate die 4 (at Fig. 1 in Fig. 5).In this ingot casting mould 1, make the moving direction of intermediate die 4 become mould open and close direction.The structure of tie-rod 7 defines the travel distance from bed die 3 beginnings of intermediate die 4, makes intermediate die 4 can not leave outside bed die 3 preset distances from moving to.

Intermediate die 4 is parts of fixed die, and is pushed on the defence line of leaving bed die 3 by a plurality of compression helical spring (not shown)s frequently.Under the situation that is not applied in external force, intermediate die 4 is remained on the position of leaving bed die 3 distance to a declared goal by tie-rod 7.Compression helical spring is kept by a plurality of columns respectively, and flexibly is arranged between bed die 3 and the intermediate die 4, and described column is to implant being near the tie-rod 7 the part of bed die 3 towards the mode of intermediate die 4 orientations.Intermediate die 4 is provided with inlet lining 23, alignment pin 24 and undesirable root cutter 25.

First inserts 22 will form two die cavitys 31 (referring to Fig. 6) with second inserts 26 and the slip inserts 27 of the described removable mould 6 in back.As shown in Figure 1, first inserts 22 is assembled and is fixed on the inner 4a with bed die 3 opposite sides of being arranged in of intermediate die 4.By way of parenthesis, in Fig. 6, be configured to be represented as die cavity 31 from the surface of the outstanding formpiston 26a of second inserts 26.

Two die cavity 31,31 along continuous straight runs of this embodiment are arranged side by side in first inserts 22 and second inserts 26.Fig. 6 has described the view of second inserts 26 when first inserts, 22 sides are observed.Two die cavitys 31,31 shown in Figure 6 form with identical shape along identical direction, make the product that forms in die cavity 31 be of similar shape.

Motlten metal is injected in these die cavitys 31,31 by three inlets 32 at the lower ending opening of each die cavity 31.The position that forms these inlets 32 in die cavity 31 also with another die cavity 31 in identical.As shown in Figure 6, these 32 cavity side running channels 33 that connect as the running channel 9 that will be described later that enter the mouth.

Also as shown in Figure 6, two die cavitys 31 connect overflow outlet 34 and gas venting channels 35 respectively.These overflow outlets 34 and gas venting channels 35 are formed the groove in second inserts 26 respectively.The opening of these grooves is by the flat surfaces (not shown) sealing of first inserts 22.

The overflow outlet 34 that forms in a die cavity 31 and the shape of gas venting channels 35 be identical with in another die cavity 31 also.The front end of gas ventilation passage 35 is provided with known cooling vent 36.Cooling vent 36 is arranged in the first main mould 21 and the second main mould 41 (will be explained hereinafter) of removable mould 6, with when intermediate die 4 and removable mould 6 are fitted to each other, forms the air duct of labyrinth structure between two cooling vents 36,36.Air duct is connected to atmosphere by the minim gap that is formed between main mould 21 and 41.

Be arranged in the intermediate die 4 inlet lining 23 within it portion be provided with and reduce hole 23a so that its moving direction that is parallel to intermediate die 4 pass the first main mould 21 and first inserts 22 both.As shown in Figure 1, reducing hole 23a is formed into its internal diameter and increases gradually towards removable mould 6.

Alignment pin 24 be used for intermediate die 4 and the removable mould 6 that will be described later between relative positioning, and be set to be assemblied in the locating hole 37 (Fig. 1) that sinks to removable mould 6.Although only described an alignment pin 24 and a locating hole 37 at Fig. 1 in the bottom of intermediate die 4 and removable mould 6 in Fig. 5, in fact it also is set in the top of intermediate die 4 and removable mould 6.In this embodiment, four alignment pins 24 and four locating holes 37 are set near first inserts 22 and both four bights of second inserts 26.

Undesirable root cutter 25 adopts following structure, and wherein, contact blades arranged vertically parallel mobile with the outer face 4b (Fig. 1) relative with bed die 3 of intermediate die 4.As shown in Figure 3, undesirable root cutter 25 excises the mo(u)lding of giving prominence to from intermediate die 4.Above-mentioned mo(u)lding is made of the mo(u)lding 39 in the mo(u)lding 38 in the cast gate that forms when motlten metal solidifies in cast gate 15 and first distribution portion that forms when solidifying in first distribution portion 10 of motlten metal at running channel 9.When mould was closed, the cutter that undesirable root cutter 25 is embedded into bed die 3 loaded among the recess 3a.

Removable mould 6 shown in Figure 1 is by the second main mould 41, and second inserts 26 and the sliding die 42 of assembling and being fixed to the second main mould 41 constitute, and are supported on the support 2 in the mode that the moving direction that can be parallel to intermediate die 4 moves freely.Removable mould 6 is connected to mold closing equipment (not shown), shown in mold closing equipment make removable mould 6 open and closes.Removable mould 6 is in this employed mold closing direction near the direction of intermediate die 4, and removable mould 6 is die sinking directions away from the direction of intermediate die 4.

Mold closing equipment is configured to it and can be when the removable mould 6 of closure removable mould 6 be moved to the left side of Fig. 1 in Fig. 5, and make removable mould 6 contact intermediate die 4, and with mould 4 and 6 both do as a whole opposing the screen resilience that elastic force is applied to the compression bolt spring on the intermediate die 4 moved towards bed die 3.Mold closing equipment also adopts following structure: removable mould 6 is moved to the right side of Fig. 1 to Fig. 5 after casting process, and it is parked on intermediate die 4 wherein leaves in the state of bed die 3 distance to a declared goal (Fig. 3).Distance to a declared goal is the distance that produces following spacing: be exposed to that the mo(u)lding 39 in the mo(u)lding 38 and first distribution portion can drop by this spacing in the cast gate on the outer face 4b of intermediate die 4, and described spacing makes tie-rod 7 not limit intermediate die 4 to move.When intermediate die 4 is left bed die 3 distance to a declared goal and is paused, stall position in the middle of the position of intermediate die 4 is called for short in the following description.Mold closing equipment also is configured to further removable mould 6 to be left intermediate die 4 from middle stall position and moves to the right.

When intermediate die 4 sides are observed, the profile of second inserts 26 shown in 6 is rectangles.Second inserts 26 is in its long side under the situation of horizontal direction and is attached to the second main mould 41.The profile of first inserts 22 is made identical with second inserts 26, and is in its long side under the situation of horizontal direction and is attached to the first main mould 21.In the second main mould 41, near four bights of second inserts 26, be drilled with locating hole 37.For each die cavity 31 sliding die 42 is set.And by from the top towards the slip inserts 27 of the inside of die cavity 31 and the cylinder 43 that is used for driving up and down slip inserts 27 constitute.

To shown in Figure 8, be formed for motlten metal is introduced the running channel 9 of die cavity 31 as Fig. 6.Fig. 7 and Fig. 8 have described a mo(u)lding, and it is formed by making in 31 the gamut from cast gate 15 to die cavity that motlten metal solidifies, and are in not the state that takes out from mould under the situation about cutting off in the centre.Because the running channel 9 that forms in the mould 1 and the shape of die cavity 31 be corresponding to the shape of this mo(u)lding,, and has the label 31 that is used for die cavity so this mo(u)lding has the label with the various piece of the running channel 9 that will be described later.By way of parenthesis, because Fig. 6 shows the general structure of removable mould 6, so Fig. 7 and die cavity 31 shown in Figure 8, cavity side running channel 33, overflow outlet 34 and gas ventilation passage 35 are with shown in Figure 6 different.

Running channel 9 is made of following: first distribution portion 10,10, and it extends to the position corresponding to each die cavity 31 along the direction (paper that is parallel to Fig. 6 and Fig. 7) that becomes vertical angle with the mold closing direction with the die sinking of intermediate die 4 and removable mould 6 from cast gate 15; And second distribution portion 51 that is used for each die cavity 31, the downstream 10a of its first distribution portion 10,10 of being used for each die cavity 31 of being used to interconnect and the inlet 32 of die cavity 31.Second distribution portion 51 is made of following: die sinking and mold closing direction extension 51a, and its downstream 10a along the direction of parallel die sinking and mold closing direction from first distribution portion 10 extends; And cavity side running channel 33, it extends to die cavity 31 (entrance branch 32) from the cavity side inlet 51b (Fig. 8) that the downstream by die sinking and mold closing direction extension 51a forms.

First distribution portion 10 forms the groove 16 in the running channel usefulness inserts 11 (Fig. 1) that is arranged in the bed die 3.Constitute by a component 53,53 that is branched off into each die cavity 31 from cast gate 15 upwardly extending upstream portion 52 (two die cavitys 31 are shared) and two from upstream portion 52 in first distribution portion 10 of Fig. 6 in this embodiment shown in Figure 8.Shown in Fig. 6 and 7, the both sides of the center line C that these components 53,53 are formed also in upstream portion 52 symmetrically by line.As shown in Figure 6 and Figure 7, when along die sinking and the observation of mold closing direction, component 53,53 in this embodiment is formed W shape.

The die sinking of second distribution portion 51 and mold closing direction extension 51a are formed by the hole 23a that reduces of inlet lining 23, and as shown in Figure 9, downstream end (leading section) 10a of each from two first distribution portion 10 is parallel to die sinking and mold closing direction (Fig. 9's is horizontal) extension.Two die sinkings and mold closing direction extension 51a, 51a is formed mutually the same shape.Undesirable root cutter 25 is configured the part that is connected to first distribution portion 10 of excising die sinking and mold closing direction extension 51a.

As Fig. 1 and shown in Figure 6, the cavity side running channel 33 of second distribution portion 51 is formed the groove in second inserts 26.Cavity side running channel 33 as shown in Figure 6 and Figure 7 be formed in die sinking and the rectangular direction of mold closing direction on extend and three inlets 32 of the downstream of second distribution portion 51 that interconnects and each die cavity 31.Two cavity side running channels 33,33 also are made into mutually the same shape, perhaps make to flow in the die cavity 31 the molten metal flow state with another in identical.

Then, will the casting process that ingot casting mould 1 that utilization constructed as mentioned above carries out be described referring to figs. 1 to Fig. 5.At first, under die opening state shown in Figure 1, the left side of mold closing equipment in same figure drives removable mould 6.Along with removable mould 6 can move, it contacts with intermediate die 4.At this moment, the state opposing that mold closing equipment further is in contact with one another the removable mould 6 among Fig. 1 from described two moulds promotes left to the screen resilience that intermediate die 4 applies the compression helical spring of screen resilience, so that both move to the left side of Fig. 1 with removable mould 6 and intermediate die 4., be locked to by the mould power that contracts of appointment in intermediate die 4 under the state of bed die 3 and in the contract mould power of removable mould 6 by appointment and be locked under the state of intermediate die 4 with after bed die 3 contacts in intermediate die 4, mold closing equipment stops to drive removable mould 6.

After finishing aforesaid closed mould operations, motlten metal M is injected into, as shown in Figure 2.After motlten metal M solidified, as shown in Figure 3, mold closing equipment moved the right side of removable mould 6 in figure.When removable mould 6 is driven like this, because removable mould 6 and intermediate die 4 are bonded together by the metal M of solidifying, so mould 4 and 6 both move together, and the driving force of the screen resilience of compression helical spring and mold closing equipment is separated intermediate die 4 with bed die 3.In this step, mold closing equipment makes intermediate die 4 be parked on the middle stall position.Because mould 4 and 6 both move as described above, mo(u)lding 38 separates with bed die 3 with the mo(u)lding 39 that is formed by the curing metal M in first distribution portion 10 of running channel 9 in the cast gate that is formed by the curing metal M in the cast gate 15.

As shown in Figure 4, the mo(u)lding 39 in first distribution portion is by 25 excisions of undesirable root cutter.The cutting position of this moment is mo(u)lding 40 in second distribution portion 51 (die sinking and mold closing direction extension 51a) that is formed by curing metal and the border between the mo(u)lding in first distribution portion 39.Because the border is cut off, so the mo(u)lding 39 in first distribution portion separates with intermediate die 4 together with mo(u)lding in the cast gate 38.After this, as shown in Figure 5, removable mould 6 is moved further by the right side of mold closing equipment in figure.At this moment, intermediate die 4 can not move on the direction identical with removable mould 6 after its motion is subjected to tie-rod 7 restriction.Therefore, along with removable mould 6 moves with respect to the right side of intermediate die 4 in figure that remains static, the interval of intermediate die 4 and removable mould 6 broadens.After this, slip inserts 27 is return, to isolate mo(u)lding 54 from second inserts 26, described mo(u)lding 54 is made of following: the mo(u)lding 40 in second distribution portion, be formed on product section in the die cavity 31 by curing metal, and the product appendage that forms by the curing metal in overflow outlet 34 and the gas venting channels 35.Then,, stay product section simultaneously, obtain crankcase by removing the redundance that forms by the curing metal M running channel 9, overflow outlet 34 and the gas ventilation passage 35 from casing 54.

Utilize the ingot casting mould 1 of being constructed as mentioned above, can be so that the motlten metal of going into each die cavity 31 by first distribution portion of running channel 9 in 10 minutes from first distribution portion, 10 inflows, second distribution portion 51 time, flows along an identical direction (the open and close direction of intermediate die 4 and removable mould 6).Therefore, can be so that between two die cavitys 31,31, identical via cavity side running channel 33 in the die sinking of second distribution portion 51 and mold closing direction extension 51a to the state that the motlten metal the die cavity 31 flows.

Therefore, utilize above-mentioned ingot casting mould 1, when motlten metal from running channel 9 when being evenly distributed to the state current downflow of each die cavity 31, each die cavity 31 is filled motlten metal equably.As a result, this embodiment can the quality with high homogeneous cast two crank boxs in a casting process.

Between die sinking and mold closing direction extension 51a and die cavity 31, be provided with along the cavity side running channel 33 that extends with the rectangular direction of die sinking direction according to second distribution portion 51 of the running channel 9 of this embodiment.Therefore, when motlten metal when die sinking and mold closing direction extension 51a flow to the cavity side running channel 33, the motlten metal flow direction becomes and die sinking and the rectangular direction of mold closing direction, motlten metal flow in each die cavity under identical flow regime.Therefore, this embodiment can be injected into motlten metal in the die cavity 31 along the optimization direction that makes product quality improve, thereby has further improved product quality.

According to this embodiment, because intermediate die 4 separates with bed die 3 after casting, so mo(u)lding 38 and the mo(u)lding 39 that formed by the curing metal in first distribution portion 10 of running channel 9 are exposed in the cast gate that is formed by the curing metal in the cast gate 15.Because it is outwards outstanding that these mo(u)ldings 38,39 are formed from the outer face 4 of intermediate die 4, so they are removed easily.Therefore, utilize this embodiment, because the mo(u)lding 39 in the cast gate in the mo(u)lding 38 and first distribution portion 10 is removed easily, so can make following ingot casting mould, described ingot casting mould has under the situation of complicated shape at the running channel 9 that extends along three-dimensional, also is applicable to the casting process that comprises the step of removing redundance.

Utilize this embodiment in addition, because the cavity side running channel 53 that is used for each die cavity of running channel 9 is formed on the both sides of the center line C of upstream portion 52 symmetrically by line, so motlten metal can be assigned to more accurately each die cavity 31, make the flow regime (molten metal flow direction, flow velocity and flow rate) that obtains a die cavity consistent with the flow regime that arrives another die cavity.Therefore, this embodiment can be so that the mass discrepancy between two crank boxs making in a casting process minimizes.

Adopt motlten metal wherein to be directed to structure from a die sinking and mold closing direction extension 51a according to second distribution portion 51 of the running channel 9 of this embodiment at a plurality of cavity side running channels 33 of three direction branches.But, be used for the die sinking of a die cavity 31 and the quantity of mold closing direction extension 51a, and the quantity of the cavity side running channel 33 of branch can be changed suitably.For example, can adopt following structure, wherein, two die sinkings and mold closing direction extension 51a are used to a die cavity 31, and these two die sinkings and mold closing direction extension 51a are connected to a die cavity 31 by cavity side running channel 33,33 independently.In the case, can form two cavity side running channels 33,33, except forming it into wherein two cavity side running channels 33,33 all are divided into outside the shape of a plurality of branches in its downstream, can also form it into following shape, and one of them cavity side running channel 33 is divided into a plurality of branches in its downstream, and another cavity side running channel 33 branch not, perhaps two cavity side running channels 33 branch not.

(second embodiment)

Can form the running channel shown in Figure 10 and 11.Figure 10 is the front view of another embodiment of running channel.Figure 11 is the cutaway view of structure with mould of running channel shown in Figure 10.In these figure, be endowed identical label with the identical or similar parts of explaining referring to figs. 1 to Fig. 9, and omitted further explanation it.This embodiment is the example of the cylinder body of the air cooled engine of casting.

Figure 10 has described directly to remove and do not cut off a mo(u)lding of mo(u)lding in the centre from mould, and it is solidify to form by the motlten metal in 31 the gamut from cast gate 15 to die cavity.Because the running channel 9 that forms in the mould 1 and the shape of die cavity 31 so this mo(u)lding has the label of the different piece of the running channel 9 that will be described later, and have the label 31 of die cavity corresponding to the shape of this mo(u)lding.

Two die cavitys 31 shown in Figure 10 are used for the cylinder body of cast engine.As shown in figure 11, these die cavitys 31 are made of intermediate die 4 and removable mould 6, and have the space that four slip inserts 27 surround between two moulds.Intermediate die 4 forms the cylinder head side of cylinder body.Removable mould 6 has the thorax core 61 of the cylinder thorax that is used to form cylinder body, and forms the crank side of cylinder body.

Four slip inserts 27 form the round wall part of cylinder body.Thorax core 61 is columniform, and its front end is rounded to the spindle end, and is fallen removable mould 6 by attached, makes front end be arranged in the die sinking and the mold closing direction extension 51a of intermediate die 4 when mold closing.Inlet 32 is formed between thorax core 61 and die sinking and the mold closing direction extension 51a.During from the cylinder end on observation, inlet 32 has annular shape.

In other words, mould 1 shown in Figure 11 is formed for injecting motlten metals by the open-ended inlet 32 in the cylinder head side of cylinder body.

Two die cavitys 31 shown in Figure 10 are formed on the both sides of center line C of the upstream portion of running channel 9 symmetrically by line.

The described running channel 9 of Figure 10 is made of first distribution portion 10 and second distribution portion 51, described first distribution portion 10 is made of upstream portion 52 and the component 53 that is provided with for each die cavity 31, and described second distribution portion 51 is used for the downstream 10a of die cavity 31 with first distribution portion 10 that is provided with for each die cavity 31.Second distribution portion 51 according to this embodiment only is made of the die sinking and the mold closing direction extension 51a that are provided with for each die cavity 31, and described die sinking and mold closing direction extension 51a extend from die sinking and mold closing direction that each downstream 10a is parallel to intermediate die 4 and removable mould 6.As shown in figure 11, the downstream of die sinking and mold closing direction extension 51a 32 is connected to die cavity 31 by entering the mouth.In other words, though first embodiment adopts motlten metal wherein to be introduced in the structure of inlet 32 from the die sinking of second distribution portion 51 and mold closing direction extension 51a by cavity side running channel 33, this embodiment adopts and cavity side running channel 33 and motlten metal wherein are not set flow directly to structure the inlet 32 from the downstream of die sinking and mold closing direction extension 51a.

Make the running channel 9 shown in the embodiment like this effect that is basically the same as those in the first embodiment also is provided.

The reason that two die cavitys 31,31 shown in this embodiment are set symmetrically about center line C line is, makes the position of the slip inserts 27 with the shortest movement travel in four slip inserts 27 that are provided with around a die cavity 31 near another die cavity.In other words, reason is, adopting the slip inserts 27 that wherein has shortest route when two die cavitys 31 are arranged side by side is side by side structure, makes that the distance between two die cavitys 31 is shorter, thereby can dwindle the size of mould 1.

Claims (5)

1. ingot casting mould comprises:
A plurality of be formed on one group can open and close fixed die and the die cavity in the removable mould, described a plurality of die cavitys make a plurality ofly have identical shaped product and can be cast simultaneously; And
Running channel, described running channel is arranged in the described fixed die, is used for motlten metal is incorporated into each die cavity by the cast gate that is connected to piston,
Wherein, described running channel has first distribution portion and second distribution portion, described first distribution portion and die sinking and mold closing direction extend to position corresponding to each die cavity from the described oral-lateral that waters with meeting at right angles, and described second distribution portion has the downstream from described first distribution portion that is used for each die cavity and is parallel to die sinking and the mold closing direction extension that described die sinking and mold closing direction are extended.
2. ingot casting mould as claimed in claim 1, wherein,
In described second distribution portion each also has the cavity side running channel that is used for each die cavity, and described cavity side running channel extends to each die cavity from the cavity side cast gate that the downstream by described die sinking and mold closing direction extension constitutes,
These cavity side running channels extend from described cavity side cast gate edge and described die sinking and the rectangular direction of mold closing direction respectively, and
The formation shape of these cavity side running channels makes motlten metal flow in the described die cavity under flow regime identical for described a plurality of die cavitys.
3. ingot casting mould as claimed in claim 1, wherein,
Fixed die is made of bed die with the cast gate that is connected to described piston and intermediate die, and described intermediate die is arranged between described bed die and the described removable mould, with along described die sinking and mold closing direction towards moving and move away described bed die with described bed die,
Described die cavity is formed between described intermediate die and the described removable mould,
Described first distribution portion is formed in the part relative with end face described intermediate die described bed die, and
The described die sinking of described second distribution portion and mold closing direction extension are formed and pass described intermediate die.
4. ingot casting mould as claimed in claim 2, wherein,
Described fixed die is made of bed die with the cast gate that is connected to described piston and intermediate die, and described intermediate die is arranged between described bed die and the described removable mould, with along described die sinking and mold closing direction towards moving and move away described bed die with described bed die,
Described die cavity is formed between described intermediate die and the described removable mould,
First distribution portion is formed between described bed die and the described intermediate die,
The described die sinking of described second distribution portion and mold closing direction extension are formed and pass described intermediate die, and
Described cavity side running channel is formed between described intermediate die and the described removable mould.
5. ingot casting mould according to any one of claims 1 to 4, wherein,
Described first distribution portion of described running channel is made of upstream portion and a plurality of component, and described upstream portion connects the described cast gate that is positioned at described piston side, and described a plurality of components are branched off into each die cavity from described upstream portion, and
Described component is formed also both sides at the center line of described upstream portion symmetrically by line.
CN 200810007049 2007-01-25 2008-01-25 Ingot casting mould CN101239374B (en)

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JP2007-015066 2007-01-25
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CN103084545A (en) * 2013-01-24 2013-05-08 宁波亿泰来模具有限公司 Pouring technology of aluminum inlet manifold
CN107803467A (en) * 2017-10-31 2018-03-16 共享铸钢有限公司 A kind of running gate system of large-scale valve casing class steel-casting
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CN101947646A (en) * 2010-09-13 2011-01-19 凡嘉科技(无锡)有限公司 Structure for improving porosity of key cylinder casting
CN101947646B (en) * 2010-09-13 2012-09-19 凡嘉科技(无锡)有限公司 Structure for improving porosity of key cylinder casting
CN103084545A (en) * 2013-01-24 2013-05-08 宁波亿泰来模具有限公司 Pouring technology of aluminum inlet manifold
CN108738316A (en) * 2016-02-10 2018-11-02 Ksm铸造集团有限公司 Gravity Permanent-Mold Casting Process method and metal mold for manufacturing casting
CN107803467A (en) * 2017-10-31 2018-03-16 共享铸钢有限公司 A kind of running gate system of large-scale valve casing class steel-casting
CN107803467B (en) * 2017-10-31 2019-02-22 共享铸钢有限公司 A kind of running gate system of large size valve casing class steel-casting
CN108941504A (en) * 2018-08-22 2018-12-07 苏州广型模具有限公司 A kind of die casting with multiple type chambers

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BRPI0800205A (en) 2008-09-16
TWI352635B (en) 2011-11-21
JP2008178896A (en) 2008-08-07
JP5026806B2 (en) 2012-09-19
CN101239374B (en) 2013-01-02
TW200848180A (en) 2008-12-16
BRPI0800205B1 (en) 2015-09-08

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