CN104259424B - Self-sealing plunger for die-casting machine injection device - Google Patents
Self-sealing plunger for die-casting machine injection device Download PDFInfo
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- CN104259424B CN104259424B CN201410471671.6A CN201410471671A CN104259424B CN 104259424 B CN104259424 B CN 104259424B CN 201410471671 A CN201410471671 A CN 201410471671A CN 104259424 B CN104259424 B CN 104259424B
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- plunger
- middle cavity
- push rod
- stopper head
- barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/203—Injection pistons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a self-sealing plunger for a die-casting machine injection device. The self-sealing plunger comprises a plunger rod and a plunger head, wherein the plunger rod is connected with a driving mechanism, and the plunger head is in sliding seal fit with the inner wall of a charging barrel. A hollow cavity is formed in the end of the plunger head and communicated with a pressure chamber of the charging barrel, a slice area is formed between the hollow cavity and the outer side of the plunger head and has a certain deformation capacity, at least one annular sealing projection is arranged on the outer side of the plunger head and corresponds to the slice area, and the sealing projection and the inner wall of the charging barrel are in close contact and sealed when the self-sealing plunger is assembled in the inner cavity of the charging barrel. The sealing projection on the plunger head hermetically contacts with the inner side of the charging barrel before injection, molten metal in the hollow cavity can force the sealing projection and the inner wall of the charging barrel to be further closely sealed, and the larger the injection pressure is, the better the sealing performance is.
Description
Technical field
The present invention relates to technical field of sealing technology, more particularly to a kind of for the self sealss post on material injection device of die casting machine
Plug.
Background technology
Die-casting technique be by the molten metal of molten state under high-voltage high-speed Fast Filling mold cavity, and make foundry goods in high pressure
Lower coagulation forming, is current production efficiency highest casting technique.Foundry goods is carried out shoot material during die cast, need head
First alloy material is heated into motlten metal liquation, then again molten metal is directed in the barrel of material injection device, finally leads to
Cross plunger molten metal is pushed to from barrel in mould carry out carrying molded.Due in barrel injection be molten state gold
Belong to liquation, temperature is very high, and in material shooting process must with certain pressure that shoots material, this require plunger and material tube inner wall it
Between there is good sealing effectiveness.
As Chinese patent document cn201618837u discloses a kind of non-crystaline amorphous metal vacuum material injection device and includes this vacuum
The die casting machine of material injection device, its material injection device mainly includes barrel, and move reciprocatingly in described barrel penetrate splenium part
(plunger), is additionally provided with seal shooting material between part and barrel, and this seal is fixed on to be penetrated on splenium part, this seal master
To be cushion rubber hydrostatic seal or magnetic seal.Due to being face seal between the seal in this patent document and material tube inner wall, penetrate
Splenium part weares and teares larger when moving reciprocatingly in barrel；In addition, and due to barrel and penetrating splenium part and be both needed to work at high temperature
Make, and high temperature can further result in that its bulk material softens, this further exacerbates wear extent during relative motion, cause
Make seal short life, sealing is unreliable；When particularly shooting material at elevated pressures, molten metal bath and easily from seal with
Gap location between material tube inner wall spills, and this not only can make injection pressure not reach default injection pressure, or even can be because leakage
Excessively, cause the feed liquid in mould not enough.
Chinese patent literature cn101479091a discloses a kind of auxiliary device for post processing semi-finished product and method, uses
Post processing and finishing in the semi-finished product that from multiple mould take out unstable to shape.It is direct that pressure air is passed through in finishing
Realize after semi-finished product take out and roll away from from multiple mould.Import to female connector inside semi-finished product and rouse for sealing semi-finished product
The interior room of wind part has can the extruding of tympanites or sealing ring.This patent documentation can by extruding or inflate, by sealing ring towards
On the inwall of semi-finished product expand, and then can unrestricted choice sealing station, its sealing tightness degree can pass through amount of compression or aeration quantity
To control, the inner chamber of semi-finished product to be formed the sealing space of suitable size.But this Expansion sealing method is suitable only for fixation
Position seals are it is impossible to be enough in the sealing penetrated in pressure motor process of the plunger in row material injecting mechanism.
Content of the invention
For this reason, the technical problem to be solved in the present invention is close between plunger and material tube inner wall in existing row material injecting mechanism
Envelope effect is bad, and then leads to, in material shooting process, the phenomenon of leakage occurs, and especially when high pressure shoots material, leakage is especially serious, its
Existing seal durability is shorter, affects die casting efficiency；And tight seal is realized in the existing expansion using seal
Technology can only apply fixing seal it is impossible to enough be applied to sealing during sliding relative movement.
For this reason, the technical problem to be solved in the present invention be provide a kind of on material injection device of die casting machine can be according to note
Injection pressure size realizes self sealss plunger, and this self sealss plunger seal effect is good, long service life, effect when high pressure shoots material
More preferably.
For achieving the above object, the present invention employs the following technical solutions:
It is a kind of that for the self sealss plunger on material injection device of die casting machine, it includes the plunger rod being connected with drive mechanism, with
And the stopper head with the inwall slipper seal cooperation of barrel, the end of described stopper head is provided with middle cavity, described middle cavity and institute
State the pressure chamber connection of barrel, between described middle cavity and the lateral surface of described stopper head, form thin slice area, described thin slice area tool
Have certain deformability, the lateral surface of described stopper head position corresponding with described thin slice area be provided with least together annular
Seal convexity；When described self sealss plunger is assembled to the inner chamber of described barrel, the internal face of described seal convexity and described barrel
It is in close contact and seal；In material shooting process, the indoor molten metal liquation of described pressure is compressed, pressure rise, described gold
Laterally described barrel applies the pressure of a radial direction from described hollow intracavity to belong to liquation, orders about described seal convexity and described barrel
Inwall be in close contact and seal.
Described seal convexity is provided with twice.
The outline of described seal convexity is arc-shaped structure.
It is provided with the stopping means for limiting described middle cavity excessively expansion or excess shrinkage at the opening of described middle cavity.
Described stopping means include the dividing plate being fixed on the end face of described stopper head, and are arranged at described hollow intracavity
Push rod, one end of described push rod is fixed on the bottom of described middle cavity, and the other end of described push rod is conflicted on described dividing plate,
Between described dividing plate and described end face, and have between described dividing plate or described push rod and the opening of described stopper head and connect institute
State the gap of pressure chamber and described middle cavity, described push rod limits described middle cavity axial shrinkage.
The area of described dividing plate is of substantially equal with the area of the end face of described stopper head, and described dividing plate passes through some bolts
It is fixed on the described end face of described stopper head.
Described push rod extends the end face of described stopper head at the opening of described middle cavity, described dividing plate with described top
The side center setting of bar cooperation is fluted, and described push rod inserts in described groove.
Screw thread is offered, at the end axle center of described hollow bottom of chamber on the one end side coordinating with described middle cavity of described push rod
Offer screw, described push rod passes through screw thread and screws in the bottom of described middle cavity with screw cooperation and fix.
Beneficial effects of the present invention:
1. the end of the stopper head of the present invention is provided with middle cavity, forms one thin in this between cavity and the lateral surface of stopper head
Section, described thin slice area has certain deformability, and the lateral surface of described stopper head position corresponding with thin slice area is provided with
At least annular together seal convexity, described seal convexity is contacted with the inner wall sealing of barrel.Before shooting material, seal convexity exists
The elastic force effect in thin slice area is lower in sealing contact with the medial surface of barrel；In material shooting process, because molten metal is compressed into height
Press liquid, the inner side of the molten metal centering cavity after this compression applies an active force, this active force force seal convexity with
The inwall tight seal of barrel, and the pressure that shoots material is bigger, the sealing between seal convexity and material tube inner wall face is tightr.In addition,
Because the contact with barrel for the seal convexity is essentially linear contact lay, contact area is less, and frictional force when relatively sliding is less, can have
Effect slows down the degree of wear, increases the service life.
2. it is provided with the opening of middle cavity of the present invention for limiting the stopping means that described middle cavity excessively expands, this limit
Position device includes the push rod extending in therefrom cavity and the dividing plate of cooperation of conflicting with push rod, and dividing plate is fixedly connected on stopper head
End, and leave certain interval between dividing plate and end face.During injection, molten metal flows into through above-mentioned gap from pressure chamber
Hollow chamber, shoots material after finishing, molten metal again from hollow chamber through above-mentioned gap feed pressure room；Above-mentioned stopping means one side
Face can prevent injection pressure from causing thin slice area excessively to expand when excessive, and card between seal convexity and the internal face of barrel
Extremely, therefore setting dividing plate can play a protective role to the stopper head being provided with middle cavity, extends its service life.
Brief description
In order that the content of invention is more likely to be clearly understood, the specific embodiment below according to the present invention simultaneously combines attached
Figure, the present invention is further detailed explanation, wherein
Fig. 1 is the sectional view of self sealss plunger of the present invention；
Fig. 2 is the axonometric chart of the self sealss plunger of the present invention；
Fig. 3 is that the self sealss plunger of the present invention is located at structural representation during initial position with barrel cooperation；
Fig. 4 be the present invention self sealss plunger motion to maximum shoot material position when structural representation.
In figure reference is expressed as:
10- barrel；100- pressure chamber；105- discharging opening；20- plunger rod；21- stopper head；Cavity in 22-；23- thin slice
Area；24- seal convexity；25- push rod；26- end face；27- dividing plate；28- gap.
Specific embodiment
Referring to Fig. 1-2, a kind of for the self sealss plunger on material injection device of die casting machine, it includes being connected with drive mechanism
Plunger rod 20, and the stopper head 21 with the inwall slipper seal cooperation of barrel 10, the end of described stopper head 21 is provided with hollow
Chamber 22, described middle cavity 22 is connected with the pressure chamber 100 of described barrel 10, the outside of described middle cavity 22 and described stopper head 21
Form thin slice area 23, described thin slice area 23 has certain deformability, and described deformability refers to described thin slice area between face
23 can be radially expanded or shrink；The lateral surface of described stopper head 21 position corresponding with described thin slice area 23 be provided with to
The seal convexity 24 of few annular together.
The diameter of the seal convexity 24 on described stopper head 21 in the present embodiment is slightly larger than the internal diameter of described barrel 10, when
When described self sealss plunger is assembled to the inner chamber of described barrel 10, described seal convexity 24 can compress described thin slice area 23 to axle center
Place shrinks, and then makes there is an initial conflict power, this effect between the internal face of described barrel 10 and described seal convexity 24
Power forces and contacts between the internal face of described barrel 10 and described seal convexity 24 and can achieve slipper seal, is injected into described material
Molten metal in the pressure chamber 100 of cylinder 100 is stored in stopper head 21 and shoots material between mouth 105.
In material shooting process, described piston rod 20 promotes described stopper head 21 towards the direction motion of the mouth 105 that shoots material, described
Molten metal liquation in pressure chamber 100 is compressed, its pressure rise, and described molten metal is lateral in described middle cavity 22
Described barrel 10 applies the pressure of a radial direction, and this pressure forces the inwall of described seal convexity 24 and described barrel 10 further
Between conflict power become big, and then so that the sealing effectiveness between described seal convexity 24 and the inwall of described barrel 10 is increased further
By force, and seal pressure increases with the increase of metal melt pressure in described pressure chamber 100.
Fig. 3 is illustrated that described stopper head 21 is located at structural representation during initial position, notes in described pressure chamber 100
Enter appropriate molten metal (" plus sige " in figure pressure chamber 100 represents molten metal), the now inwall pair of described barrel 10
Described seal convexity 24 applies an active force (referring to arrow in Fig. 3) pointing to its axle center, and described seal convexity 24 is then right
Described material tube inner wall 10 applies an equivalent counteracting force, and then realizes sealing.
Fig. 4 is illustrated that described piston rod 20 promotes described stopper head 21 to carry out shooting material action, and moves to maximum and shoot material
Structural representation during position, now by the molten metal compression in described pressure chamber 100, described metal melts described stopper head 21
The pressure of liquid increases (its " plus sige " is denser than Fig. 3 becomes), and molten metal enters described middle cavity 22, in described middle cavity 22
Molten metal applies the active force (direction of arrow referring in Fig. 4) of a sensing barrel 10, this active force to thin slice area 23 of institute
Further enhancing the sealing intensity between seal convexity 24 and the internal face of barrel 10, and this active force is with described pressure chamber
The rising of metal melt pressure in 100 and increase, when the self sealss plunger of the therefore present invention is applied to high-pressure injection its sealing effect
Fruit is more preferably.
In the present embodiment, described seal convexity 24 is provided with twice, and seal convexity 24 described in setting twice not only can increase
Strong sealing effectiveness, is also avoided that simultaneously and causes because contact area is excessive between described stopper head 21 and the inwall of described barrel 10
Heavy wear, and then extend the mechanical life of barrel 10 and stopper head 21.
In the present embodiment, the outline of described seal convexity 24 is to pass through circle between arc-shaped structure, and seal convexity 24
Arc groove transition, this arc-shaped structure is conducive to strengthening close between described seal convexity 24 and the internal face of described barrel 10
Sealing property.
In the present embodiment, it is provided with for limiting the spacing of described middle cavity 22 excessively expansion at the opening of described middle cavity 22
Device, arrange this stopping means can avoid because injection pressure excessive, cause the inwall to described barrel 10 for the described seal convexity 24
The conflict power in face is excessive, and stuck phenomenon.
Described stopping means in the present embodiment include the dividing plate 27 being fixed on the end face 26 of described stopper head 21, and
It is arranged at the push rod 25 in described middle cavity 22, one end of described push rod 25 is fixed on the bottom of described middle cavity 22, described top
The other end of bar 25 is conflicted on described dividing plate 27, between described dividing plate 27 and described end face 26, and described dividing plate 27 or institute
State and there is between push rod 25 and the opening of described stopper head 21 gap 28 connecting described pressure chamber 100 and described middle cavity 22,
Described push rod 25 limits described middle cavity 22 axial shrinkage.Described dividing plate 27 platy structure, and in other embodiments, it also may be used
Think list structure.When pressure in described pressure chamber 100 is excessive, the molten metal of high pressure can force described middle cavity 22 along
Expanded radially, described middle cavity 22, while carrying out expanded radially, can drive described middle cavity 22 axially to shrink, due to
Described push rod 25 is conflicted on described dividing plate 27, limits the axial shrinkage of described middle cavity 22, therefore can prevent described in
Cavity 22 excessively expands.
During for cold-chamber die casting machine, molten metal directly can be injected by described pressure chamber by modes such as pipeline or scoops
In 100.
And when for hot chamber machine, whole barrel 10 need to be placed in the crucible filling motlten metal liquation, and will
The elasticity adjustment in described thin slice area 23, in suitable size, shoots material after finishing, blocks described discharging opening 105 first, is now inciting somebody to action
Described stopper head 21 shoots material during position (referring to 4) is reset to initial position (referring to Fig. 3) by maximum, described pressure chamber
A negative relative can be produced in 100, this negative pressure can cause described middle cavity 22 to shrink, cause described seal convexity 24 with described
Between the internal face of barrel 10 produce certain interval, and then make described stopper head 21 rear (namely in Fig. 4 stopper head 21 the right side
Side) molten metal enter from described gap inside described pressure chamber 100, when described stopper head 21 moves to initial position
When (namely the position indicated by Fig. 3), described pressure is indoor to be full of molten metal.Described stopper head 21 from shoot material maximum position to
During initial position motion, in order to prevent the negative pressure in described pressure chamber 100 excessive, cause described middle cavity 22 because shrinking
Excessively damage, now can will be fixedly connected between described dividing plate 27 and described push rod 25, now described push rod 25 limits institute
State middle cavity 22 to axially contract or stretch, and then can effectively prevent described middle cavity 22 from damaging because of excess shrinkage or expansion.
In the present embodiment, the area of described dividing plate 27 is of substantially equal with the area of the end face 26 of described stopper head 21, described
Dividing plate 27 is bolted on the described end face 26 of described stopper head 21 by some.
In the present embodiment, described push rod 25 extends the end face of described stopper head 21 at the opening of described middle cavity 22
26, the side center setting with the cooperation of described push rod 25 of described dividing plate 27 is fluted, and described push rod 25 inserts described groove
Interior, described groove is easy to described push rod 25 and described dividing plate 27 relative localization.
Between dividing plate 27 described in the present embodiment and described end face 26, the opening of described push rod 25 and described stopper head 21 it
Between remaining have certain gap 28, described gap 28 connects described pressure chamber 100 and described middle cavity 22, and described molten metal exists
Can flow between described pressure chamber 100 and described middle cavity 22；It is, of course, also possible to by the size adjusting described gap 28,
Make molten metal have certain damping action when flowing through described gap 28, and then described middle cavity 22 also can be prevented excessively swollen
Swollen or shrink.In the present embodiment, the one end side coordinating with described middle cavity 21 of described push rod 25 offers screw thread, described
Screw is offered, described push rod 25 passes through screw thread and screw cooperation screws in the bottom of described middle cavity 21 at middle cavity 21 bottom axle center
Portion is simultaneously fixing.
Above-mentioned specific embodiment is simply explained in detail to technical scheme, the present invention not only only office
It is limited to above-described embodiment, and the self sealss plunger of the present invention is used not only on the chamber die casting machine of hot cell, can be used for cold simultaneously
On formula die casting machine and other types of die casting machine.It will be understood by those skilled in the art that every exist according to above-mentioned principle and spirit
Improvement on the basis of the present invention, replacement, all should be within protection scope of the present invention.
Claims (8)
- It is 1. a kind of that for the self sealss plunger on material injection device of die casting machine, it includes the plunger rod (20) being connected with drive mechanism, And with the stopper head (21) of the inwall slipper seal of barrel (10) cooperation it is characterised in that:The end of described stopper head (21) is provided with middle cavity (22), the pressure chamber of described middle cavity (22) and described barrel (10) (100) connect, between the lateral surface of described middle cavity (22) and described stopper head (21), form thin slice area (23), described thin slice area (23) there is certain deformability, the lateral surface of described stopper head (21) position corresponding with described thin slice area (23) is provided with At least annular together seal convexity (24)；When described self sealss plunger is assembled to the inner chamber of described barrel (10), described seal convexity (24) and described barrel (10) Internal face is in close contact and seals；In material shooting process, the molten metal liquation in described pressure chamber (100) is compressed, pressure rise, described molten metal In described middle cavity (22), laterally described barrel (10) applies the pressure of a radial direction, orders about described seal convexity (24) and institute The inwall stating barrel (10) is in close contact and seals.
- 2. according to claim 1 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: described Seal convexity (24) is provided with twice.
- 3. according to claim 1 and 2 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: The outline of described seal convexity (24) is arc-shaped structure.
- 4. according to claim 3 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: described It is provided with the stopping means for limiting described middle cavity (22) excessively expansion or excess shrinkage at the opening of middle cavity (22).
- 5. according to claim 4 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: described The dividing plate (27) on end face (26) that stopping means include be fixed on described stopper head (21), and it is arranged at described middle cavity (22) push rod (25) in, one end of described push rod (25) is fixed on the bottom of described middle cavity (22), described push rod (25) The other end conflict on described dividing plate (27), between described dividing plate (27) and described end face (26), and described dividing plate (27) or Have between described push rod (25) and the opening of described stopper head (21) and connect described pressure chamber (100) and described middle cavity (22) Gap (28).
- 6. according to claim 5 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: described The area of dividing plate (27) is of substantially equal with the area of the end face (26) of described stopper head (21), and described dividing plate (27) passes through some It is bolted on the described end face (26) of described stopper head (21).
- 7. a kind of according to claim 5 or 6 for the self sealss plunger on material injection device of die casting machine it is characterised in that: Described push rod (25) extends the end face (26) of described stopper head (21), described dividing plate at the opening of described middle cavity (22) (27) the side center setting coordinating with described push rod (25) is fluted, and described push rod (25) is inserted in described groove.
- 8. according to claim 7 a kind of for the self sealss plunger on material injection device of die casting machine it is characterised in that: described Screw thread is offered, at described middle cavity (22) bottom axle center on the one end side coordinating with described middle cavity (22) of push rod (25) Offer screw, described push rod (25) is passed through screw thread and screwed in the bottom of described middle cavity (22) with screw cooperation and fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471671.6A CN104259424B (en) | 2014-09-16 | 2014-09-16 | Self-sealing plunger for die-casting machine injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410471671.6A CN104259424B (en) | 2014-09-16 | 2014-09-16 | Self-sealing plunger for die-casting machine injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104259424A CN104259424A (en) | 2015-01-07 |
| CN104259424B true CN104259424B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410471671.6A Active CN104259424B (en) | 2014-09-16 | 2014-09-16 | Self-sealing plunger for die-casting machine injection device |
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| CN (1) | CN104259424B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6335377B1 (en) * | 2017-08-25 | 2018-05-30 | 株式会社ソディック | Light metal injection molding machine |
| CN114769550B (en) * | 2022-03-17 | 2024-07-02 | 苏州圣美特压铸科技有限公司 | Dual-purpose die casting machine for cold and hot chambers without pull rod |
| CN114653920B (en) * | 2022-05-24 | 2022-07-29 | 常崟汽车配件南通有限公司 | Gooseneck device for hot casting and multi-slide die casting machine thereof |
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| CN1301608A (en) * | 1999-12-28 | 2001-07-04 | 日精树脂工业株式会社 | Injection molding machine for low smelting point metal material |
| CN1381324A (en) * | 2001-03-12 | 2002-11-27 | 日精树脂工业株式会社 | Low smelting point metal material injection device |
| CN101479091A (en) * | 2006-06-29 | 2009-07-08 | 内兹塔尔机械公司 | Auxiliary device, and method for finishing preforms |
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| CN202045356U (en) * | 2011-04-20 | 2011-11-23 | 常州华晨机械制造有限公司 | One-way valve injection device for die casting machine |
| CN103434082A (en) * | 2013-08-30 | 2013-12-11 | 苏州圣美特压铸科技有限公司 | Deformation compensation device for injection molding machine or die-casting machine |
| CN204094112U (en) * | 2014-09-16 | 2015-01-14 | 苏州橙石铸造有限公司 | A kind of self sealss plunger on material injection device of die casting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080142184A1 (en) * | 2006-12-13 | 2008-06-19 | Ford Global Technologies, Llc | Dual plunger gooseneck for magnesium die casting |
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2014
- 2014-09-16 CN CN201410471671.6A patent/CN104259424B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1301608A (en) * | 1999-12-28 | 2001-07-04 | 日精树脂工业株式会社 | Injection molding machine for low smelting point metal material |
| CN1381324A (en) * | 2001-03-12 | 2002-11-27 | 日精树脂工业株式会社 | Low smelting point metal material injection device |
| CN101479091A (en) * | 2006-06-29 | 2009-07-08 | 内兹塔尔机械公司 | Auxiliary device, and method for finishing preforms |
| CN101588910A (en) * | 2007-01-25 | 2009-11-25 | 内兹塔尔机械公司 | Aftercooling device and method for aftercooling preforms |
| CN202045356U (en) * | 2011-04-20 | 2011-11-23 | 常州华晨机械制造有限公司 | One-way valve injection device for die casting machine |
| CN103434082A (en) * | 2013-08-30 | 2013-12-11 | 苏州圣美特压铸科技有限公司 | Deformation compensation device for injection molding machine or die-casting machine |
| CN204094112U (en) * | 2014-09-16 | 2015-01-14 | 苏州橙石铸造有限公司 | A kind of self sealss plunger on material injection device of die casting machine |
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| CN104259424A (en) | 2015-01-07 |
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Effective date of registration: 20181206 Address after: 215000 First Complex Industrial Park of Exit Processing Zone 666 Jianlin Road, Suzhou High-tech Zone, Jiangsu Province Patentee after: SDT-Smart Diecasting Technology (Suzhou) Co., Ltd. Address before: 215151 The First Complementary Industrial Park of No. 666 Jianlin Road Export Processing Zone, Suzhou High-tech Zone, Jiangsu Province Patentee before: SUZHOU CHENGSHI CASTING CO., LTD. |
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