CN109159384A - Accurate automobile grills mold weldless trace injection structure - Google Patents
Accurate automobile grills mold weldless trace injection structure Download PDFInfo
- Publication number
- CN109159384A CN109159384A CN201811102047.3A CN201811102047A CN109159384A CN 109159384 A CN109159384 A CN 109159384A CN 201811102047 A CN201811102047 A CN 201811102047A CN 109159384 A CN109159384 A CN 109159384A
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- China
- Prior art keywords
- mounting hole
- pedestal
- movable part
- air
- embryo
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/34—Moulds having venting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2608—Mould seals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
- B29C45/401—Ejector pin constructions or mountings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
- B29C2045/0037—Moulding articles or parts thereof without parting line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2028/00—Nets or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
Abstract
The present invention relates to a kind of accurate automobile grills mold weldless trace injection structures, including fixed mold core, mavable module core, cover half embryo and dynamic model embryo, and the first mounting hole, the second mounting hole and third mounting hole are provided on fixed mold core；It is provided with extraction valve in the first mounting hole, which includes valve seat and the movable part that sliding is threaded through in valve seat；A pedestal is provided in third mounting hole, fastening on the pedestal has a sealing cover, and sliding is equipped with air rammer in pedestal, and the top of sealing cover is stretched out at the top of the air rammer, and the lower part of pedestal is provided with an air passage；The sleeve for connecting movable part and air rammer is provided in second mounting hole；Filling channel and air intake passage are provided in fixed mold core, filling channel is connected to air passage, and air intake passage is connected to the second mounting hole.The present invention can be extracted out the air of mould inside in production by vacuum device, so that mould inside is equivalent to vacuum, to increase plastic rubber material speed, realize the injection molding of weldless trace.
Description
Technical field
The present invention relates to accurate automobile grills mold injection technical field of structures, and in particular to a kind of precision automobile grills mould
Has weldless trace injection structure.
Background technique
In injection molded automobile mold, for accurate automobile grills mold, structure is more complicated tiny, and the position of bone is deep, column
Position is more；When being molded such plastic mould, it often will appear to walk that glue is not parallel, trapped gas burn, weld marks are obvious, lacks at the position of bone
The problems such as glue, wherein weld mark is a kind of linear trace on plastic surface, is by plume material several in injection or extrusion in mold
Middle shunting converges, and melt is unable to welding each other and is integrated in interface incomplete fusion, causes fusion trace, will affect plastic
Presentation quality and mechanical property.
In traditional mold, there is the burn of product position of bone trapped gas, walks the situation that glue is not parallel and weld marks are obvious
When, insert for air exhaust can only be increased, this exhaust mode higher cost and exhaust effect is not satisfactory can not meet the market demand.
Summary of the invention
For the defects in the prior art, the technical problem to be solved in the present invention is to provide a kind of accurate automobile grills molds
Weldless trace injection structure, to extract the air of mould inside out in production, so that mould inside is equivalent to vacuum, to increase
Add plastic rubber material speed, realizes the injection molding of weldless trace.
In order to solve the above technical problems, the present invention provides a kind of accurate automobile grills mold weldless trace injection structure,
Including fixed mold core and mavable module core, the fixed mold core is inlaid in cover half embryo, and the mavable module core is inlaid in dynamic model embryo, the cover half
After embryo and the molding of dynamic model embryo, die cavity is formed between fixed mold core and mavable module core, and be equipped in the cover half embryo and fixed mold core
Several thimbles, on the fixed mold core along far from the die cavity direction be disposed with the first mounting hole, the second mounting hole and
Third mounting hole；It is provided with extraction valve in first mounting hole, which includes that valve seat and sliding are threaded through the valve seat
The bottom of the valve seat is stretched out in interior movable part, the bottom of the movable part；It is provided with a pedestal in the third mounting hole, it should
Fastening on pedestal has a sealing cover, and sliding is equipped with an air rammer in the pedestal, and institute is stretched out at the top of the air rammer
The top for stating sealing cover is provided with an air passage in the lower part of the pedestal, the air passage for being filled with into the pedestal or
Gas bleeding, so that the air rammer is stretched out or retracted；It is provided with a sleeve in second mounting hole, the two of the sleeve
End is connect with the top of the bottom of the movable part and air rammer respectively；Wherein, the movable part can be in the air rammer
Under the action of slid straightly from an initial position to a final position, it is described when the movable part is located at its initial position
Extraction valve is in sealing state close to one end of die cavity, and when the movable part is located at its final position, the die cavity passes through pumping
Valve is connected to second mounting hole；Filling channel and air intake passage are provided in the fixed mold core, the filling channel
One end is connected to the air passage, and the other end is connected to the inflating port of a vacuum device, one end of the air intake passage and institute
The connection of the second mounting hole is stated, the other end is connected to the bleeding point of the vacuum device.
In the present invention, before being molded sizing material, first start vacuum device, is inflated via filling channel into air passage, this
When, air rammer stretches out under the action of the gas being filled with, and drives movable part to make straight line to its final position by sleeve and slide
Move so that die cavity is connected to the second mounting hole, at this time the air in die cavity under the action of vacuum device, via extraction valve into
Enter in the second mounting hole, and be finally sucked out via air intake passage, so that being in the state of relative vacuum in die cavity；In die cavity
Vacuum degree when reaching requirement, the inflation to air passage can be stopped, air rammer bounces back at this time, and movable part is driven to return to it
Initial position can start to be molded sizing material at this time, close to vacuum so that extraction valve is in sealing state close to the side of die cavity
In die cavity, the speed for being molded sizing material be will increase, and walk glue in order, it is full that the position of bone walks glue, and does not have weld marks.
Preferably, the top of the movable part is in up big and down small taper, and the top of the valve seat is equipped with and the work
The bellmouth of moving part adaptation, the contact surface between the top of movable part and the top of valve seat are taper, and the close of the two can be improved
Sealing property.
Preferably, the periphery of the movable part is provided with an annular convex platform, and the bottom of the annular convex platform is higher than the valve seat
Bottom wall.
Preferably, be arranged with a reset spring in the periphery of the movable part, the both ends of the reset spring respectively with it is described
The top of the roof of valve seat and the annular convex platform abuts.Then when movable part is mobile to its final position, reset spring is pressed
Contracting, after air rammer retraction, movable part understands Quick-return to its initial position under the resilient force of the reset spring.
Preferably, the diameter of second mounting hole be less than first mounting hole and third mounting hole diameter, and
Be provided with sealing rubber ring between the top of the sealing cover and the roof of third mounting hole, the periphery lower part of the pedestal with it is described
Sealing rubber ring is also equipped between the side wall of third mounting hole, and the intersection of the filling channel and third mounting hole is between two
Between a sealing rubber ring.The setting of two sealing rubber rings, can be effectively prevented gas leakage, guarantee the displacement of air rammer
Accurately.
Preferably, the side of cover half embryo is provided with a mounting groove in the fixed mold core, mounting groove inner bolt connection
There is a briquetting, the bottom of the pedestal is closely connected to the top of the briquetting.Briquetting can play positioning action to pedestal.
Preferably, it is provided with a sealing rubber ring between the cover half embryo and dynamic model embryo, to prevent extraneous air via fixed
Molding gap between mold base and dynamic model embryo enters mold cavity.
Preferably, several centre holes are provided on the cover half embryo, the thimble are equipped in the centre hole, in the thimble
The bottom in hole offers one the 4th mounting hole, and interference is connected with a sealing copper sheathing in the 4th mounting hole, the top of the sealing copper sheathing
Portion's inner circumferential offers an annular groove, and a sealing rubber ring is provided in the annular groove, the sealing rubber ring and the 4th mounting hole
The periphery of roof and the thimble closely abuts.The setting of sealing copper sheathing and sealing rubber ring can play sealing function, prevent outer
The air on boundary enters mold cavity via centre hole.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the structural schematic diagram of the vacuum evacuation device of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the accurate automobile grills mold weldless trace injection structure of the embodiment of the present invention；
Fig. 3 is the partial enlarged view A in Fig. 2；
Fig. 4 is the partial enlarged view B in Fig. 2；
Fig. 5 is the attachment structure schematic diagram of the pedestal of the embodiment of the present invention, sealing cover and air rammer；
Fig. 6 is that the movable part of the embodiment of the present invention is located at the partial structural diagram of its final position.
Appended drawing reference:
1- fixed mold core；2- mavable module core；3- cover half embryo；4- dynamic model embryo；5- valve seat；6- movable part；7- reset spring；The bottom 8-
Seat；9- sealing cover；10- air rammer；11- sleeve；12- vacuum device；13- briquetting；14- sealing rubber ring；15- sealant
Circle；16- sealing rubber ring；17- thimble；18- seals copper sheathing；19- sealing rubber ring；
101- filling channel；102- air intake passage；601- annular convex platform；801- air passage.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Fig. 6, present embodiment discloses a kind of accurate automobile grills molds without molten
Lapping defect injection structure, including fixed mold core 1 and mavable module core 2, the fixed mold core 1 are inlaid in cover half embryo 3, and the mavable module core 2 is embedded in
In dynamic model embryo 4, after cover half embryo 3 and dynamic model embryo 4 mold, die cavity is formed between fixed mold core 1 and mavable module core 2, and in cover half
Several thimbles 17 are equipped in embryo 3 and fixed mold core 1, which is used for after die sinking, and the shaped article in die cavity is ejected.
The first mounting hole, the second mounting hole and third installation are disposed with along the direction far from die cavity on fixed mold core 1
Hole, wherein diameter of the diameter of the second mounting hole less than the first mounting hole and third mounting hole.
It is provided with extraction valve in above-mentioned first mounting hole, which includes that valve seat 5 and sliding are threaded through in the valve seat 5
Movable part 6, the bottom of the movable part 6 stretches out the bottom of valve seat 5, wherein the top of movable part 6 is in up big and down small taper,
And the top of valve seat 5 is equipped with the bellmouth being adapted to movable part 6, i.e. contact between the top of movable part 6 and the top of valve seat 5
Face is taper；The periphery of above-mentioned movable part 6 is provided with an annular convex platform 601, and the bottom of the annular convex platform is higher than the bottom of valve seat 5
Wall is also arranged with a reset spring 7 in the periphery of movable part 6, the both ends of the reset spring 7 respectively with the roof and ring of valve seat 5
The top of shape boss 601 abuts.
A pedestal 8 is provided in above-mentioned third mounting hole, fastening on the pedestal 8 has a sealing cover 9, sliding in pedestal 8
Dynamic to be equipped with an air rammer 10, the top of the air rammer 10 is stretched out the top of sealing cover 9, is provided in the lower part of pedestal 8
One air passage 801, which is used to be filled with into pedestal 8 or gas bleeding, so that air rammer 10 stretches out or contracting
It returns.
For the ease of the above-mentioned pedestal 8 of fixation, sealing cover 9 and air rammer 10, the present embodiment is in fixed mold core 1 close to cover half embryo
3 side is provided with a mounting groove, which is connected with a briquetting 13, and the bottom of pedestal 8 is closely connected to the pressure
The top of block 13.
Be provided with a sleeve 11 in above-mentioned second mounting hole, the both ends of the sleeve 11 respectively with the bottom of movable part 6 and
The top of air rammer 10 connects, with for the linear motion of air rammer 10 to be passed to movable part 6, so that movable part 6 can
It is slid straightly under the action of air rammer 10 from an initial position to a final position, is located at its initial bit in movable part 6
When setting, extraction valve is in sealing state close to one end of die cavity, and when movable part 6 is located at its final position, die cavity passes through extraction valve
It is connected to the second mounting hole.
Filling channel 101 and air intake passage 102 are provided in fixed mold core 1 for the ease of inflation and air-breathing, the present embodiment,
One end of filling channel 101 is connected to through the hole wall of third mounting hole with air passage 801, the other end and a vacuum device 12
Inflating port connection, one end of air intake passage 102 are connected to the second mounting hole, and the bleeding point of the other end and vacuum device 12 connects
It is logical.
The course of work of the accurate automobile grills mold weldless trace injection structure of the present embodiment is as follows: in injection molding sizing material
Before, first start vacuum device 12, is inflated via filling channel 101 into air passage 801, at this point, air rammer 10 is being filled with
Gas under the action of stretch out, and drive movable part 6 to slide straightly to its final position by sleeve 11, so that die cavity and the
The connection of two mounting holes, the air in die cavity enters the second mounting hole via extraction valve under the action of vacuum device 12 at this time
In, and be finally sucked out via air intake passage 102, so that being in the state of relative vacuum in die cavity；Vacuum degree in die cavity
When reaching requirement, the inflation to air passage 801 can be stopped, air rammer 10 bounces back at this time, and movable part 6 is in 10 He of air rammer
Its initial position is returned under the collective effect of reset spring 7, so that extraction valve is in sealing state close to the side of die cavity, is at this time
It can start to be molded sizing material, in the die cavity close to vacuum, the speed for being molded sizing material be will increase, and walk glue in order, it is full that the position of bone walks glue
It is full, and there is no weld marks.
In the present embodiment, vacuum device 12 is intelligent vacuum device, the SV605253 of model CUMSA, the intelligence
Energy vacuum device can show vacuum degree, when the vacuum degree in die cavity reaches desired value, can stop being evacuated and being infused
Modeling, when the vacuum degree such as in die cavity reaches 200pa, can immediately begin to be molded, and when vacuum degree is 600pa, then can be with
Delay 5s is molded, it is specific be molded opportunity can according to the actual situation depending on.
The present embodiment is provided with sealing rubber ring 14 between the top of above-mentioned sealing cover 9 and the roof of third mounting hole,
Sealing rubber ring 15 is provided between the periphery lower part of pedestal 8 and the side wall of third mounting hole, and filling channel 101 and third are installed
The intersection in hole, to effectively prevent gas leakage, guarantees air rammer 10 between sealing rubber ring 14 and sealing rubber ring 15
Displacement is accurate.
To block die cavity and extraneous air circulation, the present embodiment is provided with multiple sealing structures, first, in cover half embryo 3
It is provided with a sealing rubber ring 16, between dynamic model embryo 4 to prevent extraneous air via the conjunction between cover half embryo 6 and dynamic model embryo 7
Die slot gap enters mold cavity, and specifically, which is arranged in the annular groove on cover half embryo 3, and the annular groove
Depth need to do standard, in order to avoid influence the molding between cover half embryo 3 and dynamic model embryo 4；Second, being provided with several thimbles on cover half embryo 3
Hole is equipped with above-mentioned thimble 17 in the centre hole, to prevent outside air from entering mold cavity, the present embodiment out of centre hole
One the 4th mounting hole is offered in the bottom of the centre hole, interference is connected with a sealing copper sheathing 18 in the 4th mounting hole, this is close
Envelope copper sheathing 18 top inner circumferential offer an annular groove, a sealing rubber ring 19 is provided in the annular groove, the sealing rubber ring 19 with
The roof of 4th mounting hole and the periphery of thimble 17 closely abut, and during installation, need to guarantee to seal copper sheathing 18 and thimble 17 is same
The heart is vertical, to avoid 19 serious wear of sealing rubber ring.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover within the scope of the claims and the description of the invention.
Claims (8)
1. a kind of precision automobile grills mold weldless trace injection structure, including fixed mold core and mavable module core, the fixed mold core are embedded in
In cover half embryo, the mavable module core is inlaid in dynamic model embryo, after the cover half embryo and the molding of dynamic model embryo, in fixed mold core and mavable module core
Between form die cavity, and be equipped with several thimbles in the cover half embryo and fixed mold core, it is characterised in that:
The first mounting hole, the second mounting hole and third peace are disposed with along the direction far from the die cavity on the fixed mold core
Fill hole；
It is provided with extraction valve in first mounting hole, which includes valve seat and the activity that sliding is threaded through in the valve seat
The bottom of the valve seat is stretched out in part, the bottom of the movable part；
It is provided with a pedestal in the third mounting hole, fastening on the pedestal has a sealing cover, slides and wears in the pedestal
Equipped with an air rammer, the top of the sealing cover is stretched out at the top of the air rammer, and the lower part of the pedestal is provided with one
Air passage, which is used to be filled with into the pedestal or gas bleeding, so that the air rammer is stretched out or retracted；
Be provided with a sleeve in second mounting hole, the both ends of the sleeve respectively with the bottom of the movable part and air rammer
Top connection；
Wherein, it is sliding can to make straight line from an initial position to a final position under the action of air rammer for the movable part
It moves, when the movable part is located at its initial position, the extraction valve is in sealing state close to one end of die cavity, in the activity
When part is located at its final position, the die cavity is connected to by extraction valve with second mounting hole；
Filling channel and air intake passage are provided in the fixed mold core, one end of the filling channel and the air passage connect
Logical, the other end is connected to the inflating port of a vacuum device, and one end of the air intake passage is connected to second mounting hole, separately
One end is connected to the bleeding point of the vacuum device.
2. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
The top of the movable part is in up big and down small taper, and the top of the valve seat is equipped with the cone being adapted to the movable part
Shape hole.
3. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
The periphery of the movable part is provided with an annular convex platform, and the bottom of the annular convex platform is higher than the bottom wall of the valve seat.
4. precision automobile grills mold weldless trace injection structure according to claim 3, it is characterised in that:
Be arranged with a reset spring in the periphery of the movable part, the both ends of the reset spring respectively with the roof of the valve seat and
The top of the annular convex platform abuts.
5. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
The diameter of second mounting hole is less than the diameter of first mounting hole and third mounting hole, and in the sealing cover
Sealing rubber ring, the periphery lower part of the pedestal and the third mounting hole are provided between top and the roof of third mounting hole
Sealing rubber ring is also equipped between side wall, and the intersection of the filling channel and third mounting hole is between two sealants
Between circle.
6. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
The side of cover half embryo is provided with a mounting groove in the fixed mold core, which is connected with a briquetting, institute
The bottom for stating pedestal is closely connected to the top of the briquetting.
7. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
A sealing rubber ring is provided between the cover half embryo and dynamic model embryo.
8. precision automobile grills mold weldless trace injection structure according to claim 1, it is characterised in that:
Several centre holes are provided on the cover half embryo, the thimble is equipped in the centre hole, are opened in the bottom of the centre hole
Equipped with one the 4th mounting hole, interference is connected with a sealing copper sheathing in the 4th mounting hole, and the top inner circumferential of the sealing copper sheathing opens up
There is an annular groove, a sealing rubber ring is provided in the annular groove, the roof of the sealing rubber ring and the 4th mounting hole and described
The periphery of thimble closely abuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811102047.3A CN109159384B (en) | 2018-09-20 | 2018-09-20 | No weld mark injection structure of accurate car grid mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811102047.3A CN109159384B (en) | 2018-09-20 | 2018-09-20 | No weld mark injection structure of accurate car grid mould |
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| Publication Number | Publication Date |
|---|---|
| CN109159384A true CN109159384A (en) | 2019-01-08 |
| CN109159384B CN109159384B (en) | 2023-06-13 |
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| CN201811102047.3A Active CN109159384B (en) | 2018-09-20 | 2018-09-20 | No weld mark injection structure of accurate car grid mould |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539456A (en) * | 2019-09-23 | 2019-12-06 | 宁波日跃模塑有限公司 | Injection mold of auto parts with loudspeaker mesh |
| CN117429012A (en) * | 2023-12-22 | 2024-01-23 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
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| CN102328405A (en) * | 2011-10-09 | 2012-01-25 | 北京英特塑料机械总厂 | Mechanism for preventing 'vacuumizing' in ejection process in injection mould |
| CN102490289A (en) * | 2011-11-30 | 2012-06-13 | 中山市利群精密实业有限公司 | Venting auxiliary structure for plastic mould |
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| CN117429012A (en) * | 2023-12-22 | 2024-01-23 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
| CN117429012B (en) * | 2023-12-22 | 2024-03-08 | 厦门市松竹精密科技有限公司 | Injection mold for molding product with insert and production method thereof |
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