CN105014877A - Injection molding die and method of automotive engine intake manifold - Google Patents
Injection molding die and method of automotive engine intake manifold Download PDFInfo
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- CN105014877A CN105014877A CN201410174605.2A CN201410174605A CN105014877A CN 105014877 A CN105014877 A CN 105014877A CN 201410174605 A CN201410174605 A CN 201410174605A CN 105014877 A CN105014877 A CN 105014877A
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Abstract
The invention discloses an injection molding die and method of an automotive engine intake manifold. An inverted-buckling component provided with inverted buckling is formed on the intake manifold in the die opening direction of a forming die of the intake manifold, and the forming die comprises a front die body and a rear die body. The front die body and the rear die body are combined together to form a die cavity of the intake manifold. The forming die further comprises a front die ejection rod mechanism arranged on the front die body and used for abutting against the intake manifold to press the intake manifold onto the rear die body when die opening of the forming die is conducted. The inverted-buckling face of the inverted-buckling component and the die opening direction of the forming die form an angle ranging from 0 degree to 60 degrees. The forming die further comprises an intake manifold ejection mechanism which is arranged on the rear die body and used for ejecting the intake manifold out of the rear die body in the direction perpendicular to the inverted-buckling face of the inverted-buckling component. By means of the injection molding die and method of the automotive engine intake manifold, the production cost is lowered, and good economic benefits are achieved.
Description
Technical field
The present invention relates to mould field, particularly, the present invention relates to a kind of injection forming mold and method of air intake manifold of automotive engine; Described air intake manifold of automotive engine is generally plastic product, is the hollow product of shape and structure complexity.
Background technology
In automobile industry, air intake manifold of automotive engine is one of most important parts in automotive engine air intake system, decides the intake efficiency of engine and the uniformity of each cylinder charge, has a great impact overall performance.Traditional air intake manifold of automotive engine adopts cast iron or aluminium alloy to be produced by forging type, has that rough surface, inflation resistance are large, a product distinct disadvantage such as heavily.In order to reduce weight, reducing oil consumption, improve automobile engine performance and reduce discharge, simultaneously along with the research and development of engineering plastics new technology, the plastic (namely to mould Dai Gang) of motor intake manifold has become the trend of globalization; The inlet manifold that current employing nylon PA6 or PA66+ glass fibre GF (content is generally at 30%-45%) manufactures extensive use on middle-to-high end car abroad, and China's air intake manifold of automotive engine still mainly adopts cast iron or cast aluminium alloy to manufacture.
Due to plastic air intake manifold complex structure, its injection forming mold needs the smooth depanning of side coil core-pulling mechanism guarantee plastic products adopting multiple directions according to the structure of inlet manifold, and forming die structure is complicated.Meanwhile, the structure of mould be conveniently eject direction to design ejecting mechanism, cause forming die structure more complicated.
Show a kind of inlet manifold with reference to Fig. 1-5, Fig. 1, Fig. 2 for the inlet manifold shown in Fig. 1 along F-F to schematic diagram; Fig. 3 for the inlet manifold shown in Fig. 1 along A-A to schematic diagram.Fig. 4 is the stereogram of inlet manifold shown in Fig. 1; Fig. 5 is the stereogram on the other direction of inlet manifold shown in Fig. 1.In the present embodiment, this inlet manifold comprises cylinder cap flange 1, four wireways 2, throttle flange 3 and pressure stabilizing cavities 4.Four wireways 2 are in same plane, and these four wireways 2 are parallel to each other; Wherein, the bearing of trend of wireway 2 is parallel with the die sinking direction of the mould of this inlet manifold.Cylinder cap flange 1 is arranged on one end of four wireways 2 regularly, and is fixed together by four wireways 2, and the bearing of trend of cylinder cap flange 1 place plane and wireway 2 forms certain angle; Pressure stabilizing cavity 4 is in wooden dipper shape, and this pressure stabilizing cavity 4 is arranged on the other end of four wireways 2, and this pressure stabilizing cavity 4 is arranged on the side of four wireway 2 place planes; Further, pressure stabilizing cavity 4 also respectively with the inlet communication of four wireways 2.Throttle flange 3 is arranged on the sidepiece of pressure stabilizing cavity 4, and pressure stabilizing cavity 4 is communicated with throttle body by this throttle flange 3.Pressure stabilizing cavity 4 is also provided with multiple joint, and usually, the plurality of joint can be respectively EVAP pipe joint 5, crankcase ventilation pipe joint 6 and vacuum servo pipe joint 61.This EVAP pipe joint 5, crankcase ventilation pipe joint 6 are communicated with pressure stabilizing cavity 4 respectively, thus utilize the negative pressure of pressure stabilizing cavity 4, to be sucked by the waste gas such as fuel-steam, machine oil steam respectively in pressure stabilizing cavity 4 and to send into cylinder combustion by four wireways 2, reducing discharge.Vacuum servo pipe joint 61 is also communicated with pressure stabilizing cavity 4, and the additional braking force required for car brakeing provides vacuum source.Further, cylinder cap flange 1, four wireways 2, throttle flanges 3 and pressure stabilizing cavities 4 and multiple joint are formed in one.
With reference to Fig. 5, in the conventional injection molding process of above-mentioned inlet manifold, the depanning direction of this inlet manifold is parallel with the bearing of trend of wireway 2, and the bearing of trend structure of the end face of cylinder cap flange 1 and wireway 2 at an angle, meanwhile, some joints, as the crankcase ventilation pipe joint 6 in the present embodiment and vacuum servo pipe joint 61 also respectively with the bearing of trend structure of wireway 2 at an angle, therefore, during this inlet manifold depanning, just need to consider as why not damaged cylinder cap flange 1 and joint.In order to address this problem, the conventional forming mold of this inlet manifold is provided with dynamic model side walking position, as shown in Figure 6.
Fig. 6 shows a kind of conventional forming mold of inlet manifold.Particularly, this mould comprises front mould and rear mold, and front mould comprises A plate 7 ', front mould supporting plate 9 ', front core rod 8 '; A plate 7 ' is fixedly mounted in the downside of front mould supporting plate 9 ', and A plate 7 ' downside offers A template chamber, and front core rod 8 ' is removably installed in this A template chamber.Usually, in the present embodiment, front core rod 8 ' is screwed onto in A template chamber.In order to fixing front core rod 8 ', in the present embodiment, front mould also comprises front mould mold insert 20 '.Front core rod 8 ' is fixed on A plate 7 ' by this front mould mold insert 20 '.
Rear mold comprises B plate 10 ', rear core rod 11 ', the large line position 12 ' of rear mold, the first rear mold diagonal position 13 ' and the second rear mold diagonal position 14 '.B plate 10 ' upside offers B template chamber, and rear core rod 11 ' is removably installed in B template chamber.Usually, in the present embodiment, rear core rod 11 ' is screwed onto in B template chamber.The large line position 12 ' of rear mold is removably installed on B plate 10 '.Rear core rod 11 ' offers the first accommodating hole and the second accommodating hole.When rear core rod 11 ' is fixed in B template chamber, the bearing of trend of the first accommodating hole and the bearing of trend of the second accommodating hole all form angle with vertical direction.First rear mold diagonal position 13 ' is scalable in the first accommodating hole, and the second rear mold diagonal position 14 ' is scalable in the second accommodating hole.Further, the first rear mold diagonal position 13 ' also offers multiple the first corresponding respectively with multiple joints of inlet manifold respectively forming hole; Multiple first core is respectively arranged with in the plurality of first forming hole; The plurality of first core respectively with multiple joint one_to_one corresponding, for forming the through hole of multiple joint respectively; Second rear mold diagonal position 14 ' above offers second forming hole corresponding with the cylinder cap flange 1 ' of inlet manifold.Be provided with four the second cores in this first forming hole, these four second cores respectively with four wireway 2 ' one_to_one corresponding, for the formation of the gas port of this second wireway 2 '.When front mould and rear mold matched moulds, front mould and rear mold surround the die cavity of inlet manifold.Particularly, the large line position 12 ' of A template chamber, B template chamber, front core rod 8 ', rear core rod 11 ', the first core, the second core, the first rear mold diagonal position, rear mold diagonal position 13 ', second 14 ' and rear mold forms the die cavity of inlet manifold.
Further, in the present embodiment, mould also comprises and is arranged on front mould, for when die sinking, inlet manifold top is pressed in the front mould post rod mechanism in rear mold.In the present embodiment, front mould post rod mechanism comprises front mould thimble panel 15 ', front mould Ejector Retainer Plate 16 ', front mould oblique top 17 ', angle ejector rod 18 ' and tilted footstock 19 '.A plate 7 ' upside offers the first storage tank, and front mould supporting plate 9 ' downside offers second storage tank corresponding with this first storage tank, and A plate 7 ' is installed on front mould supporting plate 9 ', makes the first storage tank and the second storage tank snapably form the first accommodation space.Front mould thimble panel 15 ' and front mould Ejector Retainer Plate 16 ' can be arranged in this first accommodation space up and down.A plate 7 ' offers the 3rd accommodating hole, the 3rd accommodating hole is communicated with A template chamber with the first accommodation space respectively; Front core rod 8 ' above offers four accommodating hole corresponding with the 3rd accommodating hole; Current core rod 8 ' be installed on A plate 7 ' upper time, the 4th accommodating hole is communicated with the 3rd accommodating hole, makes the 3rd accommodating hole and the 4th accommodating hole formation the 5th accommodating hole; Angle ejector rod 18 ' telescopically is arranged in the 3rd accommodating hole and the 4th accommodating hole respectively; Front mould oblique top 17 ' is arranged on one end be in outside the 5th accommodating hole of angle ejector rod 18 '.Tilted footstock 19 ' is fixedly arranged at one end be in the 3rd accommodating hole of angle ejector rod 18 ', and this tilted footstock 19 ' is also connected with front mould thimble panel 15 ' by mechanical driving mechanism.When die sinking, front mould Ejector Retainer Plate 16 ' moves downward, and drives front mould thimble panel 15 ' to move downward, drives tilted footstock 19 ' to move downward by mechanical driving mechanism, thus drive angle ejector rod 18 ' to move downward, inlet manifold is fixed in rear mold by front mould oblique top 17 ' with supporting.
Further, mould also comprises the hot runner manifold 21 ' being arranged on front mould supporting plate 9 ' upside, and this hot runner manifold 21 ' offers injection channel, and this injection channel is communicated with the die cavity of inlet manifold.Like this, injection moulding melt is sent in the die cavity of inlet manifold by the injection channel of hot runner manifold 21 '.
Further, hot runner manifold 21 ' top is also provided with panel 22 '; Mould also comprises centring ring 23 ' and sprue bush, and this sprue bush is arranged on panel, and is communicated with hot runner manifold 21 '.Centring ring 23 ' is arranged on panel 22 ', for casting positioning muzzle.
Further, in the present embodiment, B plate 10 ' downside is also fitted with square iron 24 '; Square iron 24 ' downside is also fitted with base plate 25 '.B plate 10 ', square iron 24 ' and base plate 25 ' surrounds one second accommodation space.Mould also comprises and is arranged at rear mold Ejector Retainer Plate in the second accommodation space 26 ' and rear mold thimble panel 27 ', and wherein, rear mold thimble panel 27 ' is arranged at rear mold thimble top board 26 ' top.Rear mold thimble panel 27 ' offers the first pilot hole, rear mold Ejector Retainer Plate 26 ' offers the second pilot hole, base plate 25 ' offers the 3rd pilot hole.Mould also comprises middle holder department 28 ', and in this, holder department 28 ' is arranged in the second pilot hole and the 3rd pilot hole regularly respectively.Mould also comprises thimble 29 ', B plate 10 ' offers the 6th accommodating hole, rear core rod 11 ' above offers the 7th accommodating hole that is corresponding with the 6th accommodating hole and that be communicated with the die cavity of inlet manifold, when rear core rod 11 ' is installed in the B template chamber of B plate 10 ', 6th accommodating hole is communicated with the 7th accommodating hole, forms the 8th accommodating hole.This thimble 29 ' one end is fixedly mounted on rear mold thimble panel 27 ', and the other end is scalable in the 8th accommodating hole.
The step of this inlet manifold depanning comprises: be separated with rear mold by front mould, is fixed on rear mold in supporting by front mould post rod mechanism by inlet manifold; Then the first rear mold diagonal position 13 ' is made to stretch in the first accommodating hole completely, second rear mold diagonal position 14 ' is stretched in the second accommodating hole completely, and large for rear mold line position 12 ' disassembled from B plate 10 ', thus the effect of power can not be subject to when inlet manifold is upwards ejected.Then by driving the bearing of trend of holder department 28 ' in rear mold Ejector Retainer Plate 26 ' edge to move upward, drive the bearing of trend of holder department 28 ' in rear mold thimble panel 27 ' edge to move upward, the final thimble 29 ' that drives stretches out the 8th accommodating hole, inlet manifold is ejected.
As from the foregoing, due to the complex structure of inlet manifold, there are the parts of various orientation, and in order to manufacture inlet manifold, in conventional injection forming mold, be provided with various diagonal position, add the design and manufaction difficulty of mould, reduce the intensity of mould, add mould production cost, reduce production efficiency, what also cause inlet manifold goes out mold process complexity.
Summary of the invention
The present invention is directed in the injection forming mold of existing air intake manifold of automotive engine and various diagonal position is set, add the design and manufaction difficulty of mould, reduce the intensity of mould, add mould production cost, reduce the problem of production efficiency, provide injection forming mold and the method for the simple air intake manifold of automotive engine of a kind of depanning.
The technical scheme that the present invention provides with regard to above-mentioned technical problem is as follows:
The invention provides a kind of injection forming mold of air intake manifold of automotive engine, described inlet manifold has the back-off parts forming back-off on the die sinking direction of its mould, and described mould comprises front mould and rear mold; Described front mould, together with described rear mold matched moulds, forms the die cavity of this inlet manifold; Described mould also comprises and is arranged on described front mould, for when this mould die sinking, described inlet manifold top is pressed in the front mould post rod mechanism in described rear mold; The back-off face of described back-off parts and the die sinking direction of described mould form one and are in angle between 0 °-60 °; Described mould also comprises and is arranged in rear mold, for the inlet manifold ejecting mechanism described inlet manifold ejected along the direction perpendicular to the back-off face of described back-off parts from described rear mold.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described front mould comprises A plate, front mould supporting plate, front core rod; Described A plate is fixedly mounted in the downside of described front mould supporting plate, offers A template chamber on the downside of described A plate, and described front core rod is removably installed in this A template chamber; Described front mould also comprises front mould mold insert; Described front core rod is fixed on described A plate by this front mould mold insert; Described rear mold comprises B plate, rear core rod and the large line position of rear mold; The 3rd storage tank is offered on the upside of described B plate; 3rd storage tank side has a breach; The large line position of described rear mold is removably installed on the upside of described B plate, and the described breach of the 3rd storage tank is closed by the large line position of this rear mold, makes the 3rd storage tank be formed as B template chamber; Described rear core rod is removably installed in described B template chamber; Described rear core rod offers first accommodating hole corresponding with described back-off parts, the bearing of trend of this first accommodating hole is perpendicular to the described back-off face of described back-off parts, and the described depanning direction structure of the bearing of trend of this first accommodating hole and this mould at angle; Described A template chamber, described B template chamber, described front core rod, described rear core rod and described front mould mold insert form the die cavity of described inlet manifold.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, on the downside of described B plate, be also fitted with square iron regularly; Offer skewed slot on the upside of described square iron, this skewed slot has the structure inclined-plane at angle, described die sinking direction with described mould; Described B plate and described square iron are installed together, and make described skewed slot form the second accommodation space; Described inlet manifold ejecting mechanism also comprises and is arranged at rear mold Ejector Retainer Plate in described second accommodation space and rear mold thimble panel; Described rear mold thimble panel is arranged at above described rear mold Ejector Retainer Plate, and described rear mold Ejector Retainer Plate is fitted on described inclined-plane; Described rear mold thimble panel offers the 3rd pilot hole, described rear mold Ejector Retainer Plate offers the 4th pilot hole; Described inlet manifold ejecting mechanism also comprises middle holder department; In this, holder department is vertically set on described inclined-plane regularly, and is arranged in described 4th pilot hole and described 3rd pilot hole; Described inlet manifold ejecting mechanism also comprises thimble; Described B plate offers the 7th and ejects hole, described rear core rod offers to eject hole with the described 7th corresponding and the be communicated with the die cavity of described inlet manifold the 8th eject hole; Described 7th ejects hole and the described 8th ejects hole and is on same straight line, and is interconnected, and forms the 9th and ejects hole; Described thimble one end is installed vertically on described rear mold thimble panel regularly, and this thimble telescopically is arranged in the described 9th ejects in hole.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described inlet manifold ejecting mechanism also comprises ejection cylinder and oil cylinder T block; Described oil cylinder T block is arranged on described rear mold thimble panel regularly, and runs through described rear mold Ejector Retainer Plate; Described ejection cylinder is arranged on described oil cylinder T block regularly, and stores hydraulic oil; Be provided with oil pump in this ejection cylinder, this oil pump is used for by the space conveying liquid force feed that be in described rear mold Ejector Retainer Plate on the downside of of this oil cylinder T block to described second accommodation space.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described mould also comprises resetting means, this resetting means comprises release link and limited block, described B plate also offer vertically arrange and the reset hole be communicated with described second accommodation space, the inwall of this reset hole also offers stopper slot, and this stopper slot has opening in the upside of described B plate; Described release link one end is fixedly mounted on described rear mold thimble panel, and this release link telescopically is arranged in this reset hole; Described limited block is arranged on one end away from described rear mold thimble panel of described release link regularly, and this limited block is installed in described stopper slot separably.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described front mould post rod mechanism comprises front mould thimble panel, front mould Ejector Retainer Plate, front mould oblique top, angle ejector rod and tilted footstock; Offer the first storage tank on the upside of described A plate, on the downside of described front mould supporting plate, offer second storage tank corresponding with this first storage tank; Described first storage tank and described second storage tank snapably form the first accommodation space; Described front mould thimble panel and described front mould Ejector Retainer Plate can be arranged in this first accommodation space up and down; Offer the 3rd accommodating hole on the downside of described A plate, described first accommodation space is communicated with described A template chamber by the 3rd accommodating hole; Described front core rod offers four accommodating hole corresponding with described 3rd accommodating hole, and described 4th accommodating hole and described 3rd accommodating hole are on same straight line, and interconnect, make the 3rd accommodating hole and described 4th accommodating hole form the 5th accommodating hole; Described angle ejector rod telescopically is arranged in the 3rd accommodating hole and described 4th accommodating hole respectively; Described front mould oblique top is arranged on one end be in outside described 5th accommodating hole of described angle ejector rod; Described tilted footstock is fixedly arranged at one end be in described 3rd accommodating hole of described angle ejector rod, and this tilted footstock is also connected with described front mould thimble panel by mechanical driving mechanism; When described mould die sinking, described front mould Ejector Retainer Plate moves downward, described front mould thimble panel is driven to move downward, described tilted footstock is driven to move downward by described mechanical driving mechanism, thus drive described angle ejector rod to move downward, described inlet manifold is fixed in described rear mold by described front mould oblique top with supporting.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described mechanical driving mechanism is slide bar; This mechanical driving mechanism is installed on described front mould thimble panel regularly, and this mechanical driving mechanism and horizontal plane structure are at angle; Described tilted footstock is slidably disposed on described mechanical driving mechanism, and described second storage tank bottom land and external environment connect.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described rear mold thimble panel offers the first pilot hole, described rear mold Ejector Retainer Plate offers the second pilot hole; Described inlet manifold ejecting mechanism also comprises fastener, and this fastener is arranged on described inclined-plane regularly, and is arranged in successively in described second pilot hole and described first pilot hole, is also fixed on described B plate with supporting; Described rear mold thimble panel offers first and ejects hole, described rear mold Ejector Retainer Plate offers second and ejects hole, described B plate offers the 3rd and ejects hole, described rear core rod offers be communicated with the die cavity of described inlet manifold the 4th eject hole; Offer the 4th storage tank on the downside of described square iron, this square iron also offers be communicated with described 4th storage tank the 5th eject hole; Described first ejects hole, described second ejects hole, the described 3rd and ejects hole, the described 4th and eject hole and the described 5th and eject hole and be on same straight line, thus forms the 6th and eject hole; The 6th back-off face of bearing of trend perpendicular to described back-off parts ejecting hole; Described inlet manifold ejecting mechanism also comprises the ejector pin briquetting be arranged in described 4th storage tank, be fixedly arranged at the described 6th to eject and eject ejector sleeve in hole, and one end is fixedly arranged on described ejector pin briquetting, the other end scalable in the described ejector sleeve ejected in ejector sleeve pin.
In the injection forming mold of the air intake manifold of automotive engine that the present invention is above-mentioned, described mould also comprises the hot runner manifold be arranged on the upside of described front mould; This hot runner manifold offers injection channel, and this injection channel is communicated with the die cavity of described inlet manifold; Described front mould also offers the exhaust passage of die cavity by described inlet manifold and external environment connect; Also panel is provided with on the upside of described hot runner manifold; Described mould also comprises centring ring and for injection moulding melt being sent into the sprue bush in described injection channel; This sprue bush is arranged on described panel, and is communicated with described hot runner manifold; Described centring ring is arranged on the upside of described panel, for locating described sprue bush.
Present invention also offers a kind of injection molding forming method of air intake manifold of automotive engine, this forming method comprises the following steps:
S1) mould of inlet manifold as above is provided;
S2) injection moulding melt is injected in the die cavity of inlet manifold;
S3) after injection moulding melt cooling, by mould die sinking, front mould is separated with rear mold, and by front mould post rod mechanism, inlet manifold is fixed in rear mold with supporting simultaneously; Then by inlet manifold ejecting mechanism, described inlet manifold is ejected along the direction perpendicular to the back-off face of described back-off parts from described rear mold.
In sum, inlet manifold is fixed in rear mold by front mould post rod mechanism by the present invention, and by inlet manifold ejecting mechanism, inlet manifold is ejected from rear mold is oblique, solve the existing inlet manifold depanning difficulty with back-off parts, diagonal position is needed to solve out modulus problem, thimble simultaneously by adopting the release link vertically arranged to make this oblique can reset easily, reduces production cost, has good economic benefit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is a kind of schematic diagram of existing inlet manifold;
Fig. 2 is for the inlet manifold shown in Fig. 1 is along the schematic diagram in F-F direction;
Fig. 3 is for the inlet manifold shown in Fig. 1 is along the schematic diagram in A-A direction;
Fig. 4 is the stereogram of the inlet manifold shown in Fig. 1;
Another stereogram that Fig. 5 is the inlet manifold shown in Fig. 1;
The schematic diagram of a kind of existing mould that Fig. 6 is the inlet manifold shown in Fig. 1;
Fig. 7 is the schematic diagram of the mould of the inlet manifold of the embodiment of the present invention;
Another sectional view that Fig. 8 is the mould shown in Fig. 7;
Fig. 9 is the stereogram of the mould shown in Fig. 7;
Figure 10 is the partial sectional view of the mould shown in Fig. 7.
Detailed description of the invention
At present, the complex structure of inlet manifold, has the parts of various orientation, when utilizing injection molding forming method to manufacture inlet manifold, needs in the mould of this inlet manifold, arrange various diagonal position.After inlet manifold is shaping, and when needing depanning, the disengaging step of diagonal position is also very complicated.In order to solve the problem, the present invention, by the serious analysis architectural feature of inlet manifold, by adjusting the depanning direction of this inlet manifold, makes this inlet manifold with back-off parts can depanning in the mould not using diagonal position.
Below in conjunction with the accompanying drawings and the specific embodiments further detailed description is done to the present invention.
A kind of inlet manifold is shown with reference to Fig. 1-5, Fig. 1-5.This inlet manifold has and forms the back-off parts of back-off on the die sinking direction of its mould, and the back-off face of these back-off parts and the die sinking direction of mould form one and be in angle between 0 °-60 °; The concrete structure of inlet manifold is shown in described in background technology.
With reference to the mould that Fig. 7, Fig. 7 are a kind of inlet manifold of the embodiment of the present invention.This mould comprises front mould and rear mold, and front mould, together with rear mold matched moulds, forms the die cavity of this inlet manifold.
Particularly, front mould comprises A plate 7, front mould supporting plate 9, front core rod 8; A plate 7 is fixedly mounted in the downside of front mould supporting plate 9, offers A template chamber 71 on the downside of A plate 7, and front core rod 8 is removably installed in this A template chamber 71.Usually, in the present embodiment, front core rod 8 is screwed onto in A template chamber 71.In order to fix front core rod 8 further, in the present embodiment, front mould also comprises front mould mold insert 20.Front core rod 8 is fixed on A plate 7 by this front mould mold insert 20.
Rear mold comprises B plate 10, rear core rod 11, the large line position 12 of rear mold.The 3rd storage tank 102 is offered on the upside of B plate 10; 3rd storage tank 102 side has a breach; The large line position 12 of rear mold is removably installed on the upside of B plate 10, and encloses the breach of the 3rd storage tank 102, makes the 3rd storage tank 102 be formed as B template chamber 101; Rear core rod 11 is removably installed in B template chamber 101.Usually, in the present embodiment, rear core rod 11 is screwed onto in B template chamber 101.Rear core rod 11 offers first accommodating hole 111 corresponding with back-off parts, the bearing of trend of this first accommodating hole 111 and the depanning direction structure of this mould are at angle.
In the present embodiment, A template chamber 71, B template chamber 101, front core rod 8, rear core rod 11 and front mould mold insert 20 form the die cavity of inlet manifold.
Further, in the present embodiment, mould also comprises and is arranged on front mould, for when this mould die sinking, inlet manifold top is pressed in the front mould post rod mechanism in rear mold.In the present embodiment, this front mould post rod mechanism comprises front mould thimble panel 15, front mould Ejector Retainer Plate 16, front mould oblique top 17, angle ejector rod 18 and tilted footstock 19.Offer the first storage tank 72 on the upside of A plate 7, offer second storage tank 91, the A plate 7 corresponding with this first storage tank 72 on the downside of front mould supporting plate 9 and be installed on front mould supporting plate 9, make the first storage tank 72 and the second storage tank 91 snapably form the first accommodation space.Front mould thimble panel 15 and front mould Ejector Retainer Plate 16 can be arranged in this first accommodation space up and down.Offer the 3rd accommodating hole the 73, three accommodating hole 73 on the downside of A plate 7 first accommodation space is communicated with A template chamber 71; Front core rod 8 offers four accommodating hole 81 corresponding with the 3rd accommodating hole 73; When current core rod 8 is installed in A template chamber 71, the 4th accommodating hole 81 and the 3rd accommodating hole 73 are on same straight line, and interconnect, and make the 3rd accommodating hole 73 and the 4th accommodating hole 81 form the 5th accommodating hole; Angle ejector rod 18 telescopically is arranged in the 3rd accommodating hole 73 and the 4th accommodating hole 81 respectively; Front mould oblique top 17 is arranged on one end be in outside the 5th accommodating hole of angle ejector rod 18.Tilted footstock 19 is fixedly arranged at one end be in the 3rd accommodating hole 73 of angle ejector rod 18, and this tilted footstock 19 is also connected with front mould thimble panel 15 by mechanical driving mechanism.Here, mechanical driving mechanism can be drive rod or slide bar etc.When mould die sinking, front mould Ejector Retainer Plate 16 moves downward, and drives front mould thimble panel 15 to move downward, drives tilted footstock 19 to move downward by mechanical driving mechanism, thus drive angle ejector rod 18 to move downward, inlet manifold is fixed in rear mold by front mould oblique top 17 with supporting.Preferably, in the present embodiment, mechanical driving mechanism is slide bar; This mechanical driving mechanism is installed on front mould thimble panel 15 regularly, and this mechanical driving mechanism and horizontal plane structure are at angle; Tilted footstock 19 is slidably disposed on mechanical driving mechanism, and the second storage tank 91 bottom land and external environment connect, when current die shoe plate 9 lifts together with A plate 7, under gravity, front mould Ejector Retainer Plate 16 moves downward, and drives front mould thimble panel 15 to move downward, drives tilted footstock 19 to move downward by mechanical driving mechanism, thus drive angle ejector rod 18 to move downward, inlet manifold is fixed in rear mold by front mould oblique top 17 with supporting.
Further, with reference to Fig. 7, mould also comprises the hot runner manifold 21 be arranged on the upside of front mould; In the present embodiment, hot runner manifold 21 is arranged on the upside of front mould supporting plate 9; With reference to Fig. 7, this hot runner manifold 21 offers injection channel 211, and this injection channel 211 is communicated with the die cavity of inlet manifold.Like this, injection moulding melt is sent in the die cavity of inlet manifold by the injection channel 211 of hot runner manifold 21.Front mould also offers the exhaust passage 212 by the die cavity of inlet manifold and external environment connect.
Further, with reference to Fig. 7, on the upside of hot runner manifold 21, panel 22 is also provided with; Mould also comprises centring ring 23 and for injection moulding melt being sent into the sprue bush in injection channel 211, this sprue bush is arranged on panel 22, and is communicated with hot runner manifold 21.Centring ring 23 is arranged on the upside of panel 22, for casting positioning muzzle.
Further, in the present embodiment, with reference to Fig. 7, mould also comprises and is arranged in rear mold, for inlet manifold ejecting mechanism inlet manifold ejected from rear mold along the direction perpendicular to the back-off face of back-off parts.
Further, in the present embodiment, be also fitted with square iron 24 regularly with reference on the downside of Fig. 7, B plate 10; Offer skewed slot 241 on the upside of square iron 24, this skewed slot 241 has the die sinking direction structure inclined-plane 242 at angle with mould.B plate 10 and square iron 24 are installed together, and make skewed slot 241 form the second accommodation space.Inlet manifold ejecting mechanism also comprises and is arranged at rear mold Ejector Retainer Plate 26 in the second accommodation space and rear mold thimble panel 27.Wherein, rear mold thimble panel 27 is arranged at above rear mold Ejector Retainer Plate 26, and rear mold Ejector Retainer Plate 26 is fitted on inclined-plane 241.Rear mold thimble panel 27 offers the first pilot hole 271, rear mold Ejector Retainer Plate 26 offers the second pilot hole 261, inlet manifold ejecting mechanism also comprises fastener 30, this fastener 30 is arranged on inclined-plane 242 regularly, and be arranged in successively in the second pilot hole 261 and the first pilot hole 271, and be fixed on supporting on B plate 10.Further, in the present embodiment, rear mold thimble panel 27 offers first and ejects hole 272, rear mold Ejector Retainer Plate 26 offers second and eject hole 262, B plate 10 offers the 3rd and ejects hole 103, rear core rod 11 offers be communicated with the die cavity of inlet manifold the 4th eject hole 111; Offer the 4th storage tank 244 on the downside of square iron 24, this square iron 24 also offers be communicated with the 4th storage tank 244 the 5th eject hole 243; First ejects hole 272, second ejects hole 262, the 3rd and ejects hole 103, the 4th and eject hole 112 and the 5th and eject hole 243 and be on same straight line, thus forms the 6th and eject hole.The 6th back-off face of bearing of trend perpendicular to back-off parts ejecting hole.Particularly, in the present embodiment, the 6th to eject the bearing of trend in hole parallel with the bearing of trend of the first accommodating hole 111.Further, inlet manifold ejecting mechanism also comprises the ejector pin briquetting 31 be arranged in the 4th storage tank 244, be fixedly arranged at the 6th to eject and eject ejector sleeve 32 in hole, and one end is fixedly arranged on ejector pin briquetting 31, the other end is scalable in ejecting pin 33 in the ejector sleeve in ejector sleeve 32.
Further, in the present embodiment, with reference to Fig. 8, rear mold thimble panel 27 offers the 3rd pilot hole 273, rear mold Ejector Retainer Plate 26 offers the 4th pilot hole 263.Inlet manifold ejecting mechanism also comprises middle holder department 28; In this, holder department 28 is vertically set on inclined-plane 242 regularly, and is arranged in the 4th pilot hole 263 and the 3rd pilot hole 273.Inlet manifold ejecting mechanism also comprises thimble 29; B plate 10 offers the 7th and eject hole 104, rear core rod 11 offers to eject hole 104 with the 7th corresponding and the be communicated with the die cavity of inlet manifold the 8th eject hole 105; 7th ejects hole 104 and the 8th ejects hole 105 and is on same straight line, and is interconnected, and forms the 9th and ejects hole.Thimble 29 one end is installed vertically on rear mold thimble panel 27 regularly, and this thimble 29 telescopically is arranged in the 9th ejects in hole.
Further, in the present embodiment, with reference to Fig. 9, inlet manifold ejecting mechanism also comprises ejection cylinder 37 and oil cylinder T block 38; Oil cylinder T block 38 is arranged on rear mold thimble panel 27 regularly, and runs through rear mold Ejector Retainer Plate 26, and ejection cylinder 37 is arranged on oil cylinder T block 38 regularly, and stores hydraulic oil; Oil pump is provided with in this ejection cylinder 37, this oil pump is used for by the space conveying liquid force feed that be in rear mold Ejector Retainer Plate 26 on the downside of of this oil cylinder T block 38 to the second accommodation space, thus make under the hydraulic action of hydraulic oil rear mold Ejector Retainer Plate 26 and rear mold thimble panel 27 along in the bearing of trend of holder department 28 move.
This inlet manifold mold stripping method comprises the following steps: by mould die sinking, and front mould is separated with rear mold, and is fixed on rear mold in supporting by front mould post rod mechanism by inlet manifold simultaneously; Then rear mold Ejector Retainer Plate 26 lower side space conveying liquid force feed is in by ejection cylinder 37 to the second accommodation space, thus make under the effect of hydraulic oil rear mold Ejector Retainer Plate 26 and rear mold thimble panel 27 along in the bearing of trend of holder department 28 move, thus inlet manifold to be ejected.
Further, in the present embodiment, with reference to Figure 10, mould also comprises resetting means, this resetting means comprises release link 34 and limited block 35, B plate 10 also offer vertically arrange and the reset hole 106 be communicated with the second accommodation space, the inwall of this reset hole 106 also offers stopper slot 107, and this stopper slot 107 has opening in the upside of B plate 10.Release link 24 one end is fixedly mounted on rear mold thimble panel 27, and this release link 24 telescopically is arranged in this reset hole 106; Limited block 35 is arranged on one end away from rear mold thimble panel 27 of release link 24 regularly, and this limited block 35 is installed in stopper slot 107 separably.
Here, because reset hole 106 vertically arranges, therefore, release link 34 is also vertical motion.Like this, release link 34 ejecting along with inlet manifold, and when stretching out stopper slot 107 vertically, only a power straight down need be adopted just can to push back in stopper slot 107 by release link 34, thus cause the reset of inlet manifold ejecting mechanism.Meanwhile, when release link 24 pushes back in stopper slot 107, hydraulic oil is also pushed back in ejection cylinder 37.
With reference to Fig. 6, mould also comprises the base plate 25 be arranged on the downside of square iron 24, is also provided with thermal insulation board 251 on the downside of this base plate 25.
Present invention also offers a kind of injection molding forming method of air intake manifold of automotive engine, this forming method comprises the following steps:
S1) mould of inlet manifold as above is provided;
S2) injection moulding melt is injected in the die cavity of inlet manifold;
S3) after injection moulding melt cooling, by mould die sinking, front mould is separated with rear mold, and by front mould post rod mechanism, inlet manifold is fixed in rear mold with supporting simultaneously; Then by inlet manifold ejecting mechanism, described inlet manifold is ejected along the direction perpendicular to the back-off face of described back-off parts from described rear mold.
In sum, inlet manifold is fixed in rear mold by front mould post rod mechanism by the present invention, and by inlet manifold ejecting mechanism, inlet manifold is ejected from rear mold is oblique, solve the existing inlet manifold depanning difficulty with back-off parts, diagonal position is needed to solve out modulus problem, thimble simultaneously by adopting the release link vertically arranged to make this oblique can reset easily, reduces production cost, has good economic benefit.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection domain that all should belong to claims of the present invention.
Claims (10)
1. an injection forming mold for air intake manifold of automotive engine, described inlet manifold has the back-off parts forming back-off on the die sinking direction of its mould, and described mould comprises front mould and rear mold; Described front mould, together with described rear mold matched moulds, forms the die cavity of this inlet manifold; Described mould also comprises and is arranged on described front mould, for when this mould die sinking, described inlet manifold top is pressed in the front mould post rod mechanism in described rear mold; It is characterized in that, the back-off face of described back-off parts and the die sinking direction of described mould form one and are in angle between 0 °-60 °; Described mould also comprises and is arranged in rear mold, for the inlet manifold ejecting mechanism described inlet manifold ejected along the direction perpendicular to the back-off face of described back-off parts from described rear mold.
2. the injection forming mold of air intake manifold of automotive engine according to claim 1, is characterized in that, described front mould comprises A plate (7), front mould supporting plate (9), front core rod (8); Described A plate (7) is fixedly mounted in the downside of described front mould supporting plate (9), described A plate (7) downside offers A template chamber (71), and described front core rod (8) is removably installed in this A template chamber (71); Described front mould also comprises front mould mold insert (20); Described front core rod (8) is fixed on described A plate (7) by this front mould mold insert (20); Described rear mold comprises B plate (10), rear core rod (11) and the large line position of rear mold (12); Described B plate (10) upside offers the 3rd storage tank (102); 3rd storage tank (102) side has a breach; The large line position of described rear mold (12) is removably installed in described B plate (10) upside, and the described breach of the 3rd storage tank (102) is closed by the large line position of this rear mold (12), makes the 3rd storage tank (102) be formed as B template chamber (101); Described rear core rod (11) is removably installed in described B template chamber (101); Described rear core rod (11) offers first accommodating hole (111) corresponding with described back-off parts, the bearing of trend of this first accommodating hole (111) is perpendicular to the described back-off face of described back-off parts, and the described depanning direction structure of the bearing of trend of this first accommodating hole (111) and this mould at angle; Described A template chamber (71), described B template chamber (101), described front core rod (8), described rear core rod (11) and described front mould mold insert (20) form the die cavity of described inlet manifold.
3. the injection forming mold of air intake manifold of automotive engine according to claim 2, is characterized in that, described B plate (10) downside is also fitted with square iron (24) regularly; Described square iron (24) upside offers skewed slot (241), and this skewed slot (241) has described structure inclined-plane at angle, the die sinking direction (242) with described mould; Described B plate (10) and described square iron (24) are installed together, and make described skewed slot (241) form the second accommodation space; Described inlet manifold ejecting mechanism also comprises and is arranged at rear mold Ejector Retainer Plate (26) in described second accommodation space and rear mold thimble panel (27); Described rear mold thimble panel (27) is arranged at described rear mold Ejector Retainer Plate (26) top, and described rear mold Ejector Retainer Plate (26) is fitted on described inclined-plane (241); Described rear mold thimble panel (27) offers the 3rd pilot hole (273), described rear mold Ejector Retainer Plate (26) offers the 4th pilot hole (263); Described inlet manifold ejecting mechanism also comprises middle holder department (28); In this, holder department (28) is vertically set on described inclined-plane (242) regularly, and is arranged in described 4th pilot hole (263) and described 3rd pilot hole (273); Described inlet manifold ejecting mechanism also comprises thimble (29); Described B plate (10) offers the 7th and ejects hole (104), described rear core rod (11) offers to eject hole (104) with the described 7th corresponding and the be communicated with the die cavity of described inlet manifold the 8th eject hole (105); Described 7th ejects hole (104) and the described 8th ejects hole (105) and is on same straight line, and is interconnected, and forms the 9th and ejects hole; Described thimble (29) one end is installed vertically on described rear mold thimble panel (27) regularly, and this thimble (29) telescopically is arranged in the described 9th ejects in hole.
4. the injection forming mold of air intake manifold of automotive engine according to claim 3, is characterized in that, described inlet manifold ejecting mechanism also comprises ejection cylinder (37) and oil cylinder T block (38); Described oil cylinder T block (38) is arranged on described rear mold thimble panel (27) regularly, and runs through described rear mold Ejector Retainer Plate (26); Described ejection cylinder (37) is arranged on described oil cylinder T block (38) regularly, and stores hydraulic oil; This ejection cylinder is provided with oil pump in (37), and this oil pump is used for by the space conveying liquid force feed that be in described rear mold Ejector Retainer Plate (26) downside of this oil cylinder T block (38) to described second accommodation space.
5. the injection forming mold of air intake manifold of automotive engine according to claim 4, it is characterized in that, described mould also comprises resetting means, this resetting means comprises release link (34) and limited block (35), described B plate (10) also offer vertically arrange and the reset hole (106) be communicated with described second accommodation space, the inwall of this reset hole (106) also offers stopper slot (107), this stopper slot (107) has opening in the upside of described B plate (10); Described release link (24) one end is fixedly mounted on described rear mold thimble panel (27), and this release link (24) telescopically is arranged in this reset hole (106); Described limited block (35) is arranged on one end away from described rear mold thimble panel (27) of described release link (24) regularly, and this limited block (35) is installed in described stopper slot (107) separably.
6. the injection forming mold of air intake manifold of automotive engine according to claim 5, it is characterized in that, described front mould post rod mechanism comprises front mould thimble panel (15), front mould Ejector Retainer Plate (16), front mould oblique top (17), angle ejector rod (18) and tilted footstock (19); Described A plate (7) upside offers the first storage tank (72), and described front mould supporting plate (9) downside offers second storage tank (91) corresponding with this first storage tank (72); Described first storage tank (72) and described second storage tank (91) snapably form the first accommodation space; Described front mould thimble panel (15) and described front mould Ejector Retainer Plate (16) can be arranged in this first accommodation space up and down; Described A plate (7) downside offers the 3rd accommodating hole (73), and described first accommodation space is communicated with described A template chamber (71) by the 3rd accommodating hole (73); Described front core rod (8) offers four accommodating hole (81) corresponding with described 3rd accommodating hole (73), and described 4th accommodating hole (81) and described 3rd accommodating hole (73) are on same straight line, and interconnect, make the 3rd accommodating hole (73) and described 4th accommodating hole (81) form the 5th accommodating hole; Described angle ejector rod (18) telescopically is arranged in the 3rd accommodating hole (73) and described 4th accommodating hole (81) respectively; Described front mould oblique top (17) is arranged on one end be in outside described 5th accommodating hole of described angle ejector rod (18); Described tilted footstock (19) is fixedly arranged at one end be in described 3rd accommodating hole (73) of described angle ejector rod (18), and this tilted footstock (19) is also connected with described front mould thimble panel (15) by mechanical driving mechanism; When described mould die sinking, described front mould Ejector Retainer Plate (16) moves downward, described front mould thimble panel (15) is driven to move downward, described tilted footstock (19) is driven to move downward by described mechanical driving mechanism, thus drive described angle ejector rod (18) to move downward, described inlet manifold is fixed in described rear mold by described front mould oblique top (17) with supporting.
7. the injection forming mold of air intake manifold of automotive engine according to claim 6, is characterized in that, described mechanical driving mechanism is slide bar; This mechanical driving mechanism is installed on described front mould thimble panel (15) regularly, and this mechanical driving mechanism and horizontal plane structure are at angle; Described tilted footstock (19) is slidably disposed on described mechanical driving mechanism, and described second storage tank (91) bottom land and external environment connect.
8. the injection forming mold of air intake manifold of automotive engine according to claim 7, it is characterized in that, described rear mold thimble panel (27) offers the first pilot hole (271), described rear mold Ejector Retainer Plate (26) offers the second pilot hole (261); Described inlet manifold ejecting mechanism also comprises fastener (30), this fastener (30) is arranged on described inclined-plane (242) regularly, and be arranged in successively in described second pilot hole (261) and described first pilot hole (271), be also fixed on described B plate (10) with supporting; Described rear mold thimble panel (27) offers first and ejects hole (272), described rear mold Ejector Retainer Plate (26) offers second and ejects hole (262), described B plate (10) offers the 3rd and ejects hole (103), described rear core rod (11) offers be communicated with the die cavity of described inlet manifold the 4th eject hole (111); Described square iron (24) downside offers the 4th storage tank (244), this square iron (24) also offers be communicated with described 4th storage tank (244) the 5th eject hole (243); Described first ejects hole (272), described second ejects hole (262), the described 3rd and ejects hole (103), the described 4th and eject hole (112) and the described 5th and eject hole (243) and be on same straight line, thus forms the 6th and eject hole; The 6th back-off face of bearing of trend perpendicular to described back-off parts ejecting hole; Described inlet manifold ejecting mechanism also comprises the ejector pin briquetting (31) be arranged in described 4th storage tank (244), be fixedly arranged at the described 6th to eject and eject ejector sleeve (32) in hole, and one end is fixedly arranged on described ejector pin briquetting (31), the other end scalable in the described ejector sleeve ejected in ejector sleeve (32) pin (33).
9. the injection forming mold of air intake manifold of automotive engine according to claim 8, is characterized in that, described mould also comprises the hot runner manifold (21) be arranged on the upside of described front mould; This hot runner manifold (21) offers injection channel (211), this injection channel (211) is communicated with the die cavity of described inlet manifold; Described front mould also offers the exhaust passage (212) by the die cavity of described inlet manifold and external environment connect; Described hot runner manifold (21) upside is also provided with panel (22); Described mould also comprises centring ring (23) and for injection moulding melt being sent into the sprue bush in described injection channel (211); This sprue bush is arranged on described panel (22), and is communicated with described hot runner manifold (21); Described centring ring (23) is arranged on described panel (22) upside, for locating described sprue bush.
10. an injection molding forming method for air intake manifold of automotive engine, is characterized in that, this forming method comprises the following steps:
S1) mould of the inlet manifold as described in claim 1-9 any one is provided;
S2) injection moulding melt is injected in the die cavity of inlet manifold;
S3) after injection moulding melt cooling, by mould die sinking, front mould is separated with rear mold, and by front mould post rod mechanism, inlet manifold is fixed in rear mold with supporting simultaneously; Then by inlet manifold ejecting mechanism, described inlet manifold is ejected along the direction perpendicular to the back-off face of described back-off parts from described rear mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174605.2A CN105014877B (en) | 2014-04-28 | 2014-04-28 | Injection molding die and method of automotive engine intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410174605.2A CN105014877B (en) | 2014-04-28 | 2014-04-28 | Injection molding die and method of automotive engine intake manifold |
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| Publication Number | Publication Date |
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| CN105014877A true CN105014877A (en) | 2015-11-04 |
| CN105014877B CN105014877B (en) | 2017-02-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3202920B2 (en) * | 1996-07-03 | 2001-08-27 | ダイハツ工業株式会社 | Method and apparatus for producing synthetic resin tubular body and synthetic resin intake manifold |
| CN201439237U (en) * | 2009-06-25 | 2010-04-21 | 深圳市群达行精密模具有限公司 | Injection molding die for intake manifold |
| CN202225378U (en) * | 2011-05-18 | 2012-05-23 | 重庆明腾模具有限公司 | Air intake manifold mould for built-in fuel injection system |
| CN202742631U (en) * | 2012-04-06 | 2013-02-20 | 富港电子（东莞）有限公司 | Injection mold |
| CN203957278U (en) * | 2014-04-28 | 2014-11-26 | 群达模具(深圳)有限公司 | A kind of injection forming mold of air intake manifold of automotive engine |
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