CN105014877B - 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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- CN105014877B CN105014877B CN201410174605.2A CN201410174605A CN105014877B CN 105014877 B CN105014877 B CN 105014877B CN 201410174605 A CN201410174605 A CN 201410174605A CN 105014877 B CN105014877 B CN 105014877B
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- 238000002347 injection Methods 0.000 claims description 42
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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
A kind of the present invention relates to mould field, in particular it relates to injection of air intake manifold of automotive engine
Mould and method；Described air intake manifold of automotive engine is usually plastic product, is the complicated hollow product of shape and structure.
Background technology
In automobile industry, air intake manifold of automotive engine is one of most important part in automotive engine air intake system,
Decide the intake efficiency of engine and the uniformity of each cylinder charge, overall performance is had a great impact.Traditional automobile
Motor intake manifold is produced by forging type using cast iron or aluminium alloy, there is rough surface, inflation resistance is big, produce
The product distinct disadvantage such as again.In order to reduce weight, reduce oil consumption, improve automobile engine performance and reduce discharge, simultaneously with work
The research and development of engineering plastics new technology, the plastic (i.e. to mould Dai Gang) of motor intake manifold has become the trend of globalization；
The inlet manifold being manufactured using nylon PA6 or PA66+ glass fibre GF (content is typically in 30%-45%) at present abroad in
Extensively apply on high-end automobile, and China's air intake manifold of automotive engine still mainly to be manufactured using cast iron or cast aluminium alloy.
Due to plastic air intake manifold complex structure, it is multiple that its injection forming mold needs the structure according to inlet manifold to adopt
The smooth depanning of side coil core-pulling mechanism guarantee plastic products in direction, forming die structure is complicated.Meanwhile, mould
Structure is to design ejecting mechanism according to conventional ejection direction, leads to forming die structure more complicated.
Reference picture 1-5, Fig. 1 shows a kind of inlet manifold, Fig. 2 be Fig. 1 shown in inlet manifold along F-F to signal
Figure；Fig. 3 be Fig. 1 shown in inlet manifold along A-A to schematic diagram.Fig. 4 is the stereogram of inlet manifold shown in Fig. 1；Fig. 5 is figure
Stereogram in inlet manifold other direction shown in 1.In the present embodiment, this inlet manifold includes 1, four wireways of cylinder cap flange
2nd, throttle flange 3 and pressure stabilizing cavity 4.Four wireways 2 are in same plane, and this four wireways 2 are parallel to each other；Its
In, 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 fixedly disposed
In one end of four wireways 2, and four wireways 2 are fixed together, and cylinder cap flange 1 place plane and wireway 2
Bearing of trend constitutes 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 is steady
Pressure chamber 4 is arranged on the side of four wireways 2 place plane；And, pressure stabilizing cavity 4 is also connected with the import of four wireways 2 respectively
Logical.Throttle flange 3 is arranged on the sidepiece of pressure stabilizing cavity 4, and pressure stabilizing cavity 4 is connected with throttle body by this throttle flange 3.Voltage stabilizing
Multiple joints are additionally provided with chamber 4, usually, the plurality of joint can be respectively EVAP pipe joint 5, crankcase bleed pipe connects
6 and vacuum servo pipe joint 61.This EVAP pipe joint 5, crankcase ventilation pipe joint 6 are connected with pressure stabilizing cavity 4 respectively,
Thus using the negative pressure of pressure stabilizing cavity 4, respectively the waste gas such as fuel-steam, machine oil steam being sucked in pressure stabilizing cavity 4 and are led by four
Tracheae 2 sends into cylinder combustion, reduces discharge.Vacuum servo pipe joint 61 is also connected with pressure stabilizing cavity 4, is required for vehicle braking
Additional braking force provides vacuum source.Further, 1, four wireways 2 of cylinder cap flange, throttle flange 3 and pressure stabilizing cavity 4 and
Multiple joints 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 and air guide
The bearing of trend of pipe 2 is parallel, and the bearing of trend structure of the end face of cylinder cap flange 1 and wireway 2 is at an angle, meanwhile, some
Crankcase ventilation pipe joint 6 in joint, the such as the present embodiment and vacuum servo pipe joint 61 also extension side with wireway 2 respectively
To structure at an angle, therefore, it is necessary to consider how not damage cylinder cap flange 1 and joint during this inlet manifold depanning.In order to
Solve 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.Specifically, this mould includes front mould and rear mold,
Front mould includes 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 ', A plate 7 ' downside
Offer A template chamber, front core rod 8 ' is removably installed in this A template chamber.Usually, in the present embodiment, front core rod 8 ' spiral shell
It is connected in A template chamber.For core rod 8 ' before fixation, in the present embodiment, front mould also includes front mould mold insert 20 '.This front mould mold insert 20 '
Front core rod 8 ' is fixed on A plate 7 '.
Rear mold includes B plate 10 ', rear core rod 11 ', the big 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, originally
In embodiment, rear core rod 11 ' is screwed onto in B template chamber.The big line position of rear mold 12 ' is removably installed on B plate 10 '.Core rod afterwards
11 ' above offer the first accommodating hole and the second accommodating hole.When rear core rod 11 ' is fixed in B template chamber, the prolonging of the first accommodating hole
Stretch direction and the bearing of trend of the second accommodating hole all constitutes angle with vertical direction.First rear mold diagonal position 13 ' scalable in
In one accommodating hole, the second rear mold diagonal position 14 ' scalable in the second accommodating hole.Further, on the first rear mold diagonal position 13 '
It is further opened with multiple multiple joints corresponding first forming holes respectively with inlet manifold respectively；The plurality of first shaping in the hole is divided
It is not provided with multiple first cores；The plurality of first core is corresponded with multiple joints respectively, for forming multiple connecing respectively
The through hole of head；Second rear mold diagonal position 14 ' above offers corresponding second forming hole of cylinder cap flange 1 ' with inlet manifold.This
It is provided with four the second cores, this four second cores are corresponded with four wireways 2 ' respectively, for shape in one forming hole
Become 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.Specifically
Ground, 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 13 ', the
Two rear mold diagonal positions 14 ' and the die cavity of rear mold big line position 12 ' formation inlet manifold.
Further, in the present embodiment, mould also includes being arranged on front mould, in die sinking, by air inlet discrimination
Front mould post rod mechanism in rear mold for the pipe top pressure.In the present embodiment, front mould post rod mechanism includes 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, front die shoe
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 appearance
Put groove and the second storage tank snapably forms the first accommodation space.Front mould thimble panel 15 ' and front mould Ejector Retainer Plate 16 ' can be upper and lower
It is arranged in this first accommodation space to motion.A plate 7 ' above offers the 3rd accommodating hole, and the 3rd accommodating hole holds with first respectively
Connect with A template chamber between being empty；Front core rod 8 ' above offers fourth accommodating hole corresponding with the 3rd accommodating hole；Current core rod 8 ' peace
Be loaded on A plate 7 ' upper when, the 4th accommodating hole connects with the 3rd accommodating hole, makes the 3rd accommodating hole and the 4th accommodating hole composition the 5th appearance
Put hole；Angle ejector rod 18 ' is telescopically respectively arranged in the 3rd accommodating hole and the 4th accommodating hole；Front mould oblique top 17 ' is arranged on
One end being in outside the 5th accommodating hole of angle ejector rod 18 '.What tilted footstock 19 ' was fixedly arranged at angle ejector rod 18 ' is in the 3rd appearance
Put the one end in hole, this tilted footstock 19 ' is connected with front mould thimble panel 15 ' also 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 ' by mechanical driving mechanism
Moving downward, thus driving angle ejector rod 18 ' to move downward, making front mould oblique top 17 ' be fixed in rear mold inlet manifold with supporting.
Further, mould also includes being arranged on the hot runner manifold 21 ' of front mould supporting plate 9 ' upside, this hot runner manifold
21 ' above offer injection channel, and this injection channel is connected with the die cavity of inlet manifold.So, injection melt can pass through hot flow path
The injection channel of plate 21 ' is sent in the die cavity of inlet manifold.
Further, hot runner manifold 21 ' top is additionally provided with panel 22 '；Mould also includes centring ring 23 ' and cast gate
Set, this sprue bush is arranged on panel, and connects with hot runner manifold 21 '.Centring ring 23 ' is arranged on panel 22 ', for positioning
Sprue bush.
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 ' surround one second accommodation space.Mould also includes being arranged at second and houses
Rear mold thimble base plate 26 ' in space and rear mold thimble panel 27 ', wherein, rear mold thimble panel 27 ' is arranged at rear mold thimble top
Plate 26 ' top.Rear mold thimble panel 27 ' above offers the first pilot hole, and rear mold thimble base plate 26 ' above offers the second guiding
Hole, base plate 25 ' above offers the 3rd pilot hole.Mould also includes middle support department 28 ', and in this, support department 28 ' regularly wears respectively
In the second pilot hole and the 3rd pilot hole.Mould also includes thimble 29 ', and B plate 10 ' above offers the 6th accommodating hole,
Core rod 11 ' above offers the 7th accommodating hole that corresponding with the 6th accommodating hole and with inlet manifold die cavity connects afterwards, when after core rod
11 ' when being installed in the B template chamber of B plate 10 ', and the 6th accommodating hole is connected with the 7th accommodating hole, constitutes the 8th accommodating hole.This thimble
29 ' one end are fixedly mounted on rear mold thimble panel 27 ', the other end scalable in the 8th accommodating hole.
The step of this inlet manifold depanning includes：Front mould is separated with rear mold, by front mould post rod mechanism by inlet manifold
It is fixed in rear mold with supporting；Then the first rear mold diagonal position 13 ' is made to stretch completely in the first accommodating hole, the second rear mold diagonal
Stretch completely in the second accommodating hole in position 14 ', and big for rear mold line position 12 ' is disassembled from B plate 10 ', so that air inlet discrimination
Will not be acted on by power when pipe is ejected upwards.Then pass through to drive the extension side of support department 28 ' in rear mold thimble base plate 26 ' edge
To moving upwards, the bearing of trend of support department 28 ' in rear mold thimble panel 27 ' edge is driven to move upwards, final drive thimble 29 ' is stretched
Go out the 8th accommodating hole, inlet manifold is ejected.
From the foregoing, it will be observed that due to the complex structure of inlet manifold, there is the part of various orientations, and in order to manufacture air inlet discrimination
Pipe, is provided with various diagonal positions, increased design and the manufacture difficulty of mould, reduce in conventional injection forming mold
The intensity of pattern tool, increased mould production cost, reduces production efficiency, and also result in inlet manifold goes out mold process again
Miscellaneous.
Content of the invention
The present invention is directed in the injection forming mold of existing air intake manifold of automotive engine and arranges various diagonal positions, increases
The design of mould and manufacture difficulty, reduce the intensity of mould, increased mould production cost, reduce
The problem of production efficiency, there is provided a kind of injection forming mold of the simple air intake manifold of automotive engine of depanning and method.
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 is in its shaping
On the die sinking direction of mould, there is the back-off part forming back-off, described mould includes front mould and rear mold；Described front mould and
Described rear mold matched moulds together, forms the die cavity of this inlet manifold；Described mould also includes being arranged on described front mould, uses
In when this mould molds, by the front mould post rod mechanism in described inlet manifold top pressure in the rear mould；Described back-off portion
The die sinking direction of the back-off face of part and described mould constitutes one and is in the angle between 0 ° -60 °；Described mould also wraps
Include and be arranged in rear mold, for by described inlet manifold along perpendicular to the back-off face of described back-off part direction from described rear mold
The inlet manifold ejecting mechanism of upper ejection.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described front mould includes A plate, front die shoe
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, described
Front core rod is removably installed in this A template chamber；Described front mould also includes front mould mold insert；This front mould mold insert is by described front core rod
It is fixed on described A plate；Described rear mold includes B plate, rear core rod and the big line position of rear mold；Offer the 3rd on the upside of described B plate to house
Groove；3rd storage tank side has a breach；The big line position of described rear mold is removably installed on the upside of described B plate, and should
The big line position of rear mold, by the described breach closing of the 3rd storage tank, makes the 3rd storage tank be formed as B template chamber；Described rear core rod
It is removably installed in described B template chamber；First accommodating hole corresponding with described back-off part is offered on described rear core rod,
The described back-off face extending perpendicularly to described back-off part of this first accommodating hole, and the bearing of trend of this first accommodating hole
At an angle with the described die sinking direction structure of this mould；Described A template chamber, described B template chamber, described front core rod, described
Core rod and described front mould mold insert form the die cavity of described inlet manifold afterwards.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, also regularly paste on the downside of described B plate
Conjunction has square iron；Skewed slot is offered, this skewed slot has the described die sinking direction composition one with described mould on the upside of described square iron
The inclined-plane of angle；Described B plate and described square iron are installed together, and make described skewed slot form the second accommodation space；Described air inlet discrimination
Pipe ejecting mechanism also includes rear mold thimble base plate and the rear mold thimble panel being arranged in described second accommodation space；Described rear mold
Thimble panel is arranged above described rear mold thimble base plate, and described rear mold thimble base plate is fitted on described inclined-plane；After described
3rd pilot hole is offered on mould thimble panel, described rear mold thimble base plate offers the 4th pilot hole；Described inlet manifold
Ejecting mechanism also includes middle support department；In this, support department is regularly vertically set on described inclined-plane, and is arranged in described 4th guiding
In hole and described 3rd pilot hole；Described inlet manifold ejecting mechanism also includes thimble；The 7th ejection is offered on described B plate
Hole, described rear core rod offers the 8th top that corresponding with the described 7th ejection hole and with described inlet manifold die cavity connects
Portal；Described 7th ejection hole and described 8th ejection hole are on same straight line, and are interconnected, and constitute the 9th ejection hole；
Described thimble one end is regularly installed vertically on described rear mold thimble panel, and this thimble is telescopically arranged in the described 9th
In ejection hole.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described inlet manifold ejecting mechanism is also
Including ejection cylinder and oil cylinder T block；Described oil cylinder T block is fixedly provided on described rear mold thimble panel, and after running through described
Mould Ejector Retainer Plate；Described ejection cylinder is fixedly provided on described oil cylinder T block, and stores hydraulic oil；In this ejection cylinder
It is provided with oil pump, this oil pump is used for by this oil cylinder T block being under described rear mold thimble base plate to described second accommodation space
The space delivery hydraulic pressure oil of side.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described mould also includes resetting
Device, this resetting means includes release link and limited block, and described B plate is further opened with being vertically arranged and accommodating with described second
The reset hole of space connection, the inwall of this reset hole is further opened with stopper slot, this stopper slot has out in the upside of described B plate
Mouthful；Described release link one end is fixedly mounted on described rear mold thimble panel, and this release link is telescopically arranged in this again
In the hole of position；Described limited block is fixedly provided in one end away from described rear mold thimble panel of described release link, and this is spacing
Block is detachably mounted in described stopper slot.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, before described front mould post rod mechanism includes
Mould thimble panel, front mould Ejector Retainer Plate, front mould oblique top, angle ejector rod and tilted footstock；The first storage tank is offered on the upside of described A plate,
Second storage tank corresponding with this first storage tank is offered on the downside of described front mould supporting plate；Described first storage tank and described second
Storage tank snapably forms the first accommodation space；Described front mould thimble panel and described front mould Ejector Retainer Plate can set up and down
It is placed in this first accommodation space；The 3rd accommodating hole is offered, the 3rd accommodating hole is accommodating empty by described first on the downside of described A plate
Between connect with described A template chamber；Fourth accommodating hole corresponding with described 3rd accommodating hole is offered on described front core rod, and described
4th accommodating hole and described 3rd accommodating hole are on same straight line, and interconnect, and make the 3rd accommodating hole and the described 4th
Accommodating hole constitutes the 5th accommodating hole；Described angle ejector rod is telescopically respectively arranged at the 3rd accommodating hole and described 4th accommodating hole
In；Described front mould oblique top is arranged on one end being in outside described 5th accommodating hole of described angle ejector rod；Described tilted footstock is regularly
Be arranged at one end being in described 3rd accommodating hole of described angle ejector rod, this tilted footstock also by mechanical driving mechanism with described
Front mould thimble panel connects；When described mould molds, described front mould Ejector Retainer Plate moves downward, and drives described front mould top
Dial plate moves downward, and drives described tilted footstock to move downward by described mechanical driving mechanism, thus driving described angle ejector rod
Move downward, make described front mould oblique top that described inlet manifold to be fixed in described rear mold with supporting.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described mechanical driving mechanism is to slide
Bar；This mechanical driving mechanism is fixably attached on described front mould thimble panel, and this mechanical driving mechanism is constituted with horizontal plane
One angle；Described tilted footstock is slidably disposed on described mechanical driving mechanism, and described second storage tank bottom land and the external world
Environmental communication.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described rear mold thimble panel opens up
There is the first pilot hole, described rear mold thimble base plate offers the second pilot hole；Described inlet manifold ejecting mechanism also includes supportting
Head, this fastener is fixedly provided on described inclined-plane, and is arranged in successively in described second pilot hole and described first pilot hole,
It is fixed on also supporting on described B plate；First ejection hole is offered on described rear mold thimble panel, on described rear mold thimble base plate
Offer the second ejection hole, described B plate offers the 3rd ejection hole, described rear core rod offers and described inlet manifold
4th ejection hole of die cavity connection；Offer the 4th storage tank on the downside of described square iron, this square iron is further opened with and the described 4th
5th ejection hole of storage tank connection；Described first ejection hole, described second ejection hole, described 3rd ejection hole, the described 4th
Ejection hole and described 5th ejection hole are on same straight line, thus constituting the 6th ejection hole；The extension side in the 6th ejection hole
To the back-off face perpendicular to described back-off part；Described inlet manifold ejecting mechanism also includes being arranged in described 4th storage tank
Ejector pin briquetting, be fixedly arranged at the ejection ejector sleeve in described 6th ejection hole, and one end be fixedly arranged at described
On ejector pin briquetting, pin in the scalable ejector sleeve in described ejection ejector sleeve of the other end.
In the injection forming mold of the above-mentioned air intake manifold of automotive engine of the present invention, described mould also includes arranging
Hot runner manifold on the upside of described front mould；Injection channel is offered, this injection channel and described inlet manifold on this hot runner manifold
Die cavity connection；The exhaust passage that the die cavity of described inlet manifold is connected with external environment is further opened with described front mould；Institute
State and on the upside of hot runner manifold, be additionally provided with panel；Described mould also includes centring ring and sends into described note for being molded melt
Mould the sprue bush in passage；This sprue bush is arranged on described panel, and connects with described hot runner manifold；Described centring ring setting
Side on the panel, for positioning described sprue bush.
Present invention also offers a kind of injection molding forming method of air intake manifold of automotive engine, this forming method includes following
Step：
S1) mould of inlet manifold as above is provided；
S2) injection melt is molded in the die cavity of inlet manifold；
S3) after injection melt cooling, mould is molded, so that front mould is separated with rear mold, and pass through front mould top simultaneously
Inlet manifold is fixed in rear mold by linkage with supporting；Then pass through inlet manifold ejecting mechanism to hang down in described inlet manifold edge
Directly eject from described rear mold in the direction in the back-off face of described back-off part.
In sum, the present invention by front mould post rod mechanism, inlet manifold is fixed in rear mold, and passes through inlet manifold
Inlet manifold from the oblique ejection of rear mold, is solved the existing inlet manifold depanning difficulty with back-off part, needs by ejecting mechanism
Want diagonal position to solve out modulus problem, pass through to make this oblique thimble can easily answer using the release link being vertically arranged simultaneously
Position, reduces production cost, has good economic benefit.
Brief description
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 the schematic diagram along F-F direction for the inlet manifold shown in Fig. 1；
Fig. 3 is the schematic diagram along A-A direction for the inlet manifold shown in Fig. 1；
Fig. 4 is the stereogram of the inlet manifold shown in Fig. 1；
Fig. 5 is another stereogram of the inlet manifold shown in Fig. 1；
Fig. 6 is the schematic diagram of a kind of existing mould of inlet manifold shown in Fig. 1；
Fig. 7 is the schematic diagram of the mould of inlet manifold of the embodiment of the present invention；
Fig. 8 is another sectional view of 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.
Specific embodiment
At present, the complex structure of inlet manifold, has the part of various orientations, is manufacturing air inlet using injection molding forming method
During manifold, need to arrange various diagonal positions in the mould of this inlet manifold.After inlet manifold shaping, and need depanning
When, the disengaging step of diagonal position is also very complicated.In order to solve the above problems, the present invention passes through the serious analysis knot of inlet manifold
Structure feature, by adjusting the depanning direction of this inlet manifold, enables this to have the inlet manifold of back-off part and is not using diagonal
Depanning in the mould of position.
Below in conjunction with the accompanying drawings and the specific embodiments further detailed description is done to the present invention.
Reference picture 1-5, Fig. 1-5 shows a kind of inlet manifold.This inlet manifold is on the die sinking direction of its mould
There is the back-off part forming back-off, the back-off face of this back-off part is in 0 ° -60 ° with the die sinking direction composition one of mould
Between angle；The concrete structure of inlet manifold is as described in background technology.
With reference to Fig. 7, Fig. 7 is a kind of mould of inlet manifold of the embodiment of the present invention.This mould includes front mould
And rear mold, front mould, together with rear mold matched moulds, forms the die cavity of this inlet manifold.
Specifically, front mould includes A plate 7, front mould supporting plate 9, front core rod 8；A plate 7 is fixedly mounted under front mould supporting plate 9
Side, offers A template chamber 71 on the downside of A plate 7, front core rod 8 is removably installed in this A template chamber 71.Usually, the present embodiment
In, front core rod 8 is screwed onto in A template chamber 71.For core rod 8 before further fixing, in the present embodiment, front mould also includes front mould
Mold insert 20.Front core rod 8 is fixed on A plate 7 this front mould mold insert 20.
Rear mold includes B plate 10, rear core rod 11, the big line position of rear mold 12.The 3rd storage tank 102 is offered on the upside of B plate 10；This
Three storage tank 102 side has a breach；The big line position of rear mold 12 is removably installed on the upside of B plate 10, and enclose this
The breach of three storage tanks 102, makes the 3rd storage tank 102 be formed as B template chamber 101；Core rod 11 is removably installed in B plate afterwards
In die cavity 101.Usually, in the present embodiment, rear core rod 11 is screwed onto in B template chamber 101.Offer and back-off on core rod 11 afterwards
Corresponding first accommodating hole 111 of part, the bearing of trend of this first accommodating hole 111 constitutes one with the die sinking direction of this mould
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 formed into
The die cavity of gas manifold.
Further, in the present embodiment, mould also includes being arranged on front mould, in the die sinking of this mould
When, by front mould post rod mechanism in rear mold for the inlet manifold top pressure.In the present embodiment, this front mould post rod mechanism includes front mould thimble
Panel 15, front mould Ejector Retainer Plate 16, front mould oblique top 17, angle ejector rod 18 and tilted footstock 19.The first storage tank is offered on the upside of A plate 7
72, offer second storage tank 91 corresponding with this first storage tank 72 on the downside of front mould supporting plate 9, A plate 7 is installed on front mould supporting plate 9
On, 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 top
Pin base plate 16 can be arranged in this first accommodation space up and down.The 3rd accommodating hole 73 is offered on the downside of A plate 7, the 3rd
First accommodation space is connected by accommodating hole 73 with A template chamber 71；Offer on front core rod 8 and the 3rd accommodating hole 73 the corresponding 4th
Accommodating hole 81；When current core rod 8 is installed in A template chamber 71, the 4th accommodating hole 81 and the 3rd accommodating hole 73 are in same straight line
On, and interconnect, make the 3rd accommodating hole 73 and the 4th accommodating hole 81 constitute the 5th accommodating hole；Angle ejector rod 18 telescopically divides
It is not arranged in the 3rd accommodating hole 73 and the 4th accommodating hole 81；Front mould oblique top 17 be arranged on angle ejector rod 18 be in the 5th house
One end outside hole.Tilted footstock 19 is fixedly arranged at one end being in the 3rd accommodating hole 73 of angle ejector rod 18, this tilted footstock 19
It is connected with front mould thimble panel 15 also by mechanical driving mechanism.Here, mechanical driving mechanism can be drive rod or slide bar etc..
When mould molds, front mould Ejector Retainer Plate 16 moves downward, and drives front mould thimble panel 15 to move downward, is driven by machinery
Motivation structure drives tilted footstock 19 to move downward, thus driving angle ejector rod 18 to move downward, makes front mould oblique top 17 support inlet manifold
It is fixed in rear mold with holding.Preferably, in the present embodiment, mechanical driving mechanism is slide bar；This mechanical driving mechanism is regularly pacified
It is loaded on front mould thimble panel 15, and this mechanical driving mechanism is at an angle with horizontal plane structure；Tilted footstock 19 is mounted slidably
On mechanical driving mechanism, and the second storage tank 91 bottom land is connected with external environment, 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, by Mechanical Driven
Mechanism drives tilted footstock 19 to move downward, thus driving angle ejector rod 18 to move downward, makes front mould oblique top 17 support inlet manifold
Ground is fixed in rear mold.
Further, with reference to Fig. 7, mould also includes being arranged on the hot runner manifold 21 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, this note
Mould passage 211 to connect with the die cavity of inlet manifold.So, injection melt can be sent into by the injection channel 211 of hot runner manifold 21
To in the die cavity of inlet manifold.The exhaust passage 212 that the die cavity of inlet manifold is connected with external environment is further opened with front mould.
Further, with reference to Fig. 7, on the upside of hot runner manifold 21, it is additionally provided with panel 22；Mould also includes centring ring 23
With for injection melt is sent into the sprue bush in injection channel 211, this sprue bush is arranged on panel 22, and and hot runner manifold
21 connections.Centring ring 23 is arranged on the upside of panel 22, for positioning sprue bush.
Further, in the present embodiment, with reference to Fig. 7, mould also includes being arranged in rear mold, for by inlet manifold
Along the inlet manifold ejecting mechanism ejecting from rear mold perpendicular to the direction in the back-off face of back-off part.
Further, in the present embodiment, with reference to Fig. 7, on the downside of B plate 10, also regularly it is fitted with square iron 24；On the upside of square iron 24
Offer skewed slot 241, this skewed slot 241 has the inclined-plane 242 at an angle with the die sinking direction structure of mould.B plate 10 and side
Iron 24 is installed together, and makes skewed slot 241 form the second accommodation space.Inlet manifold ejecting mechanism also includes being arranged at second and houses
Rear mold thimble base plate 26 in space and rear mold thimble panel 27.Wherein, rear mold thimble panel 27 is arranged at rear mold thimble base plate
Above in the of 26, and rear mold thimble base plate 26 is fitted on inclined-plane 241.First pilot hole 271 is offered on rear mold thimble panel 27, after
Second pilot hole 261 is offered on mould Ejector Retainer Plate 26, inlet manifold ejecting mechanism also includes fastener 30, this fastener 30 is regularly
It is arranged on inclined-plane 242, and is arranged in successively in the second pilot hole 261 and the first pilot hole 271, and be fixed on B plate with supporting
On 10.Further, in the present embodiment, rear mold thimble panel 27 offers the first ejection hole 272, on rear mold thimble base plate 26
Offer the second ejection hole 262, B plate 10 offers the 3rd ejection hole 103, rear core rod 11 offers the mould with inlet manifold
4th ejection hole 111 of chamber connection；Offer the 4th storage tank 244 on the downside of square iron 24, this square iron 24 is further opened with and the 4th
5th ejection hole 243 of storage tank 244 connection；First ejection hole 272, second ejection hole the 262, the 3rd ejection hole the 103, the 4th top
Portal 112 and the 5th ejection hole 243 be on same straight line, thus constitute the 6th ejection hole.The extension side in the 6th ejection hole
To the back-off face perpendicular to back-off part.Specifically, in the present embodiment, the 6th ejects bearing of trend and first accommodating hole in hole
111 bearing of trend is parallel.Further, inlet manifold ejecting mechanism also includes the ejector sleeve being arranged in the 4th storage tank 244
Pin briquetting 31, is fixedly arranged at the ejection ejector sleeve 32 in the 6th ejection hole, and one end is fixedly arranged at ejector pin briquetting
On 31, pin 33 in the ejector sleeve in the scalable ejector sleeve 32 in ejection of the other end.
Further, in the present embodiment, with reference to Fig. 8, rear mold thimble panel 27 offers the 3rd pilot hole 273, rear mold
4th pilot hole 263 is offered on Ejector Retainer Plate 26.Inlet manifold ejecting mechanism also includes middle support department 28；In this, support department 28 is fixing
Be vertically set on inclined-plane 242, and be arranged in the 4th pilot hole 263 and the 3rd pilot hole 273.Inlet manifold ejecting mechanism
Also include thimble 29；Offer on B plate 10 the 7th ejection hole 104, rear core rod 11 offers with the 7th ejection hole 104 corresponding,
And the 8th ejection hole 105 connecting with the die cavity of inlet manifold；7th ejection hole 104 and the 8th ejection hole 105 are in always
On line, and it is interconnected, constitute the 9th ejection hole.Thimble 29 one end is regularly installed vertically on rear mold thimble panel 27, and
This thimble 29 is telescopically arranged in the 9th ejection hole.
Further, in the present embodiment, with reference to Fig. 9, inlet manifold ejecting mechanism also includes ejection cylinder 37 and oil cylinder T block
38；Oil cylinder T block 38 is fixedly provided on rear mold thimble panel 27, and runs through rear mold thimble base plate 26, and ejection cylinder 37 is fixing
Be arranged on oil cylinder T block 38, and store hydraulic oil；It is provided with oil pump, this oil pump is used for by being somebody's turn to do in this ejection cylinder 37
Oil cylinder T block 38 is oily to the space delivery hydraulic pressure being on the downside of rear mold thimble base plate 26 of the second accommodation space, thus in hydraulic oil
Hydraulic action under make rear mold thimble base plate 26 and rear mold thimble panel 27 along in the bearing of trend of support department 28 moved.
This inlet manifold mold stripping method comprises the following steps：Mould is molded, so that front mould is separated with rear mold, and simultaneously
By front mould post rod mechanism, inlet manifold is fixed in rear mold with supporting；Then pass through ejection cylinder 37 to the second accommodation space
Be in rear mold thimble base plate 26 lower side space delivery hydraulic pressure oil, thus making rear mold thimble base plate 26 He in the presence of hydraulic oil
Rear mold thimble panel 27 along in the bearing of trend of support department 28 move, thus inlet manifold is ejected.
Further, in the present embodiment, with reference to Figure 10, mould also includes resetting means, and this resetting means includes multiple
Position bar 34 and limited block 35, B plate 10 is further opened with reset hole 106 that is being vertically arranged and connecting with the second accommodation space, and this is multiple
It is further opened with stopper slot 107, this stopper slot 107 has opening in the upside of B plate 10 on the inwall in position hole 106.Release link 24 1
End is fixedly mounted on rear mold thimble panel 27, and this release link 24 is telescopically arranged in this reset hole 106；Limited block
35 one end away from rear mold thimble panel 27 being fixedly provided in release link 24, and this limited block 35 is detachably mounted to limit
In the groove 107 of position.
Here, because reset hole 106 is vertically arranged, therefore, release link 34 is also vertically movable.So, multiple
Position bar 34 with the ejection of inlet manifold, and when vertically stretching out stopper slot 107, only need to can using a power straight down
To push back release link 34 in stopper slot 107, thus leading to the reset of inlet manifold ejecting mechanism.Meanwhile, press in release link 24
When returning in stopper slot 107, hydraulic oil is also pressed back in ejection cylinder 37.
With reference to Fig. 6, mould also includes being arranged at the base plate 25 of square iron 24 downside, be additionally provided with the downside of this base plate 25 every
Hot plate 251.
Present invention also offers a kind of injection molding forming method of air intake manifold of automotive engine, this forming method includes following
Step：
S1) mould of inlet manifold as above is provided；
S2) injection melt is molded in the die cavity of inlet manifold；
S3) after injection melt cooling, mould is molded, so that front mould is separated with rear mold, and pass through front mould top simultaneously
Inlet manifold is fixed in rear mold by linkage with supporting；Then pass through inlet manifold ejecting mechanism to hang down in described inlet manifold edge
Directly eject from described rear mold in the direction in the back-off face of described back-off part.
In sum, the present invention by front mould post rod mechanism, inlet manifold is fixed in rear mold, and passes through inlet manifold
Inlet manifold from the oblique ejection of rear mold, is solved the existing inlet manifold depanning difficulty with back-off part, needs by ejecting mechanism
Want diagonal position to solve out modulus problem, pass through to make this oblique thimble can easily answer using the release link being vertically arranged simultaneously
Position, reduces production cost, has good economic benefit.
It should be appreciated that for those of ordinary skills, can be improved according to the above description or be converted,
And all these modifications and variations all should belong to the protection domain of claims of the present invention.
Claims (8)
1. a kind of injection forming mold of air intake manifold of automotive engine, described inlet manifold is in the die sinking direction of its mould
On there is the back-off part forming back-off, described mould includes front mould and rear mold；Described front mould and described rear mold matched moulds exist
Together, form the die cavity of this inlet manifold；Described mould also includes being arranged on described front mould, in this mould
During die sinking, by the front mould post rod mechanism in described inlet manifold top pressure in the rear mould；It is characterized in that, described back-off part
The die sinking direction of back-off face and described mould constitutes one and is in the angle between 0 ° -60 °；Described mould also includes setting
It is placed in rear mold, for described inlet manifold edge is pushed up perpendicular to the direction in the back-off face of described back-off part from described rear mold
The inlet manifold ejecting mechanism going out；
Described front mould includes A plate (7), front mould supporting plate (9), front core rod (8)；Described A plate (7) is fixedly mounted in described front die shoe
The downside of plate (9), offers A template chamber (71) on the downside of described A plate (7), described front core rod (8) is removably installed in this A plate
In die cavity (71)；Described front mould also includes front mould mold insert (20)；Described front core rod (8) is fixed on described by this front mould mold insert (20)
On A plate (7)；Described rear mold includes B plate (10), rear core rod (11) and the big line position of rear mold (12)；Offer on the upside of described B plate (10)
3rd storage tank (102)；3rd storage tank (102) side has a breach；The big line position (12) of described rear mold is removably
It is installed on the upside of described B plate (10), and the big line position of this rear mold (12), by the described breach closing of the 3rd storage tank (102), makes
3rd storage tank (102) is formed as B template chamber (101)；Described rear core rod (11) is removably installed in described B template chamber
(101) in；Offer first accommodating hole (111) corresponding with described back-off part on described rear core rod (11), this first house
The described back-off face extending perpendicularly to described back-off part in hole (111), and the bearing of trend of this first accommodating hole (111)
At an angle with the described die sinking direction structure of this mould；Described A template chamber (71), described B template chamber (101), described before
Core rod (8), described rear core rod (11) and described front mould mold insert (20) form the die cavity of described inlet manifold；
Also regularly it is fitted with square iron (24) on the downside of described B plate (10)；Skewed slot (241) is offered on the upside of described square iron (24), should
Skewed slot (241) has the inclined-plane (242) at an angle with the described die sinking direction structure of described mould；Described B plate (10) and
Described square iron (24) is installed together, and makes described skewed slot (241) form the second accommodation space；Described inlet manifold ejecting mechanism is also
Including the rear mold thimble base plate (26) being arranged in described second accommodation space and rear mold thimble panel (27)；Described rear mold thimble
Panel (27) is arranged above described rear mold thimble base plate (26), and described rear mold thimble base plate (26) is fitted in described inclined-plane
(242) on；3rd pilot hole (273) is offered on described rear mold thimble panel (27), described rear mold thimble base plate (26) is opened
It is provided with the 4th pilot hole (263)；Described inlet manifold ejecting mechanism also includes middle support department (28)；In this, support department (28) regularly hangs down
Directly it is arranged on described inclined-plane (242), and be arranged in described 4th pilot hole (263) and described 3rd pilot hole (273)；Institute
State inlet manifold ejecting mechanism and also include thimble (29)；7th ejection hole (104), described rear mold are offered on described B plate (10)
The 8th ejection that corresponding with the described 7th ejection hole (104) and with described inlet manifold die cavity connects is offered on core (11)
Hole (105)；Described 7th ejection hole (104) and described 8th ejection hole (105) are on same straight line, and are interconnected, structure
Become the 9th ejection hole；Described thimble (29) one end is regularly installed vertically on described rear mold thimble panel (27), and this thimble
(29) telescopically it is arranged in described 9th ejection hole；
Mould also includes being arranged at the base plate (25) on the downside of square iron (24), and this base plate is additionally provided with thermal insulation board on the downside of (25)
(251).
2. the injection forming mold of air intake manifold of automotive engine according to claim 1 is it is characterised in that described air inlet
Manifold ejecting mechanism also includes ejection cylinder (37) and oil cylinder T block (38)；Described oil cylinder T block (38) be fixedly provided in described after
On mould thimble panel (27), and run through described rear mold thimble base plate (26)；Described ejection cylinder (37) is fixedly provided in described
On oil cylinder T block (38), and store hydraulic oil；This ejection cylinder is provided with oil pump in (37), and this oil pump is used for by this oil cylinder T
Block (38) is to the space delivery hydraulic pressure oil being on the downside of described rear mold thimble base plate (26) of described second accommodation space.
3. the injection forming mold of air intake manifold of automotive engine according to claim 2 is it is characterised in that described shaping
Mould also includes resetting means, and this resetting means includes release link (34) and limited block (35), and described B plate (10) is further opened with erecting
Reset hole (106) that is straight arranging and being connected with described second accommodation space, the inwall of this reset hole (106) is further opened with
Stopper slot (107), this stopper slot (107) has opening in the upside of described B plate (10)；Described release link (34) one end is regularly
It is arranged on described rear mold thimble panel (27), and this release link (34) is telescopically arranged in this reset hole (106)；Described
Limited block (35) is fixedly provided in one end away from described rear mold thimble panel (27) of described release link (34), and this is spacing
Block (35) is detachably mounted in described stopper slot (107).
4. the injection forming mold of air intake manifold of automotive engine according to claim 3 is it is characterised in that described front mould
Post rod mechanism includes 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 described A plate (7), offer on the downside of described front mould supporting plate (9) with this first house
Corresponding second storage tank of groove (72) (91)；Described first storage tank (72) and described second storage tank (91) snapably form
One accommodation space；Described front mould thimble panel (15) and described front mould Ejector Retainer Plate (16) can be arranged at up and down this first
In accommodation space；The 3rd accommodating hole (73) is offered, the 3rd accommodating hole (73) houses described first on the downside of described A plate (7)
Space connects with described A template chamber (71)；Offer on described front core rod (8) and described 3rd accommodating hole (73) the corresponding 4th
Accommodating hole (81), and described 4th accommodating hole (81) and described 3rd accommodating hole (73) be on same straight line, and interconnect,
The 3rd accommodating hole (73) and described 4th accommodating hole (81) is made to constitute the 5th accommodating hole；Described angle ejector rod (18) is telescopically divided
It is not arranged in the 3rd accommodating hole (73) and described 4th accommodating hole (81)；Described front mould oblique top (17) is arranged on described oblique top
One end being in outside described 5th accommodating hole of bar (18)；Described tilted footstock (19) is fixedly arranged at described angle ejector rod (18)
It is in the one end in described 3rd accommodating hole (73), this tilted footstock (19) is also by mechanical driving mechanism and described front mould thimble face
Plate (15) connects；When described mould molds, described front mould Ejector Retainer Plate (16) moves downward, and drives described front mould thimble
Panel (15) moves downward, and drives described tilted footstock (19) to move downward by described mechanical driving mechanism, thus driving described
Angle ejector rod (18) moves downward, and makes described front mould oblique top (17) that described inlet manifold to be fixed in described rear mold with supporting.
5. the injection forming mold of air intake manifold of automotive engine according to claim 4 is it is characterised in that described machinery
Drive mechanism is slide bar；This mechanical driving mechanism is fixably attached on described front mould thimble panel (15), and this Mechanical Driven
Mechanism is at an angle with horizontal plane structure；Described tilted footstock (19) is slidably disposed on described mechanical driving mechanism, and described
Second storage tank (91) bottom land is connected with external environment.
6. the injection forming mold of air intake manifold of automotive engine according to claim 5 is it is characterised in that described rear mold
First pilot hole (271) is offered on thimble panel (27), described rear mold thimble base plate (26) offers the second pilot hole
(261)；Described inlet manifold ejecting mechanism also includes fastener (30), and this fastener (30) is fixedly provided in described inclined-plane (242)
On, and be arranged in successively in described second pilot hole (261) and described first pilot hole (271), it is fixed on described B with also supporting
On plate (10)；First ejection hole (272) is offered on described rear mold thimble panel (27), described rear mold thimble base plate (26) is opened
It is provided with the second ejection hole (262), described B plate (10) offers the 3rd ejection hole (103), described rear core rod (11) offers
The 4th ejection hole (112) connecting with the die cavity of described inlet manifold；The 4th storage tank is offered on the downside of described square iron (24)
(244), this square iron (24) is further opened with the 5th ejection hole (243) connecting with described 4th storage tank (244)；Described first
Ejection hole (272), described second ejection hole (262), described 3rd ejection hole (103), described 4th ejection hole (112) and described
5th ejection hole (243) is on same straight line, thus constituting the 6th ejection hole；6th ejects extending perpendicularly to of hole
The back-off face of described back-off part；Described inlet manifold ejecting mechanism also includes being arranged in described 4th storage tank (244)
Ejector pin briquetting (31), is fixedly arranged at the ejection ejector sleeve (32) in described 6th ejection hole, and one end is fixedly disposed
On described ejector pin briquetting (31), pin (33) in the scalable ejector sleeve in described ejection ejector sleeve (32) of the other end.
7. the injection forming mold of air intake manifold of automotive engine according to claim 6 is it is characterised in that described shaping
Mould also includes being arranged on the hot runner manifold (21) on the upside of described front mould；This hot runner manifold offers injection channel on (21)
(211), this injection channel (211) is connected with the die cavity of described inlet manifold；It is further opened with described air inlet discrimination on described front mould
The exhaust passage (212) that the die cavity of pipe connects with external environment；It is additionally provided with panel (22) on the upside of described hot runner manifold (21)；Institute
State mould also to include centring ring (23) and send into the sprue bush in described injection channel (211) for melt will be molded；Should
Sprue bush is arranged on described panel (22), and connects with described hot runner manifold (21)；Described centring ring (23) is arranged on described
On the upside of panel (22), for positioning described sprue bush.
8. a kind of injection molding forming method of air intake manifold of automotive engine is it is characterised in that this forming method comprises the following steps：
S1) mould of the inlet manifold as described in claim 1-7 any one is provided；
S2) injection melt is molded in the die cavity of inlet manifold；
S3) after injection melt cooling, mould is molded, so that front mould is separated with rear mold, and pass through front mould push rod machine simultaneously
Inlet manifold is fixed in rear mold by structure with supporting；Then pass through inlet manifold ejecting mechanism by described inlet manifold along perpendicular to
The direction in the back-off face of described back-off part ejects 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 |
|---|---|
| CN105014877A CN105014877A (en) | 2015-11-04 |
| CN105014877B true CN105014877B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 mould |
| 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 |
-
2014
- 2014-04-28 CN CN201410174605.2A patent/CN105014877B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 mould |
| 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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| Publication number | Publication date |
|---|---|
| CN105014877A (en) | 2015-11-04 |
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