CN106217774A - A kind of water pipe moulding process of New type water pipe mould and this mould - Google Patents
A kind of water pipe moulding process of New type water pipe mould and this mould Download PDFInfo
- Publication number
- CN106217774A CN106217774A CN201610608151.4A CN201610608151A CN106217774A CN 106217774 A CN106217774 A CN 106217774A CN 201610608151 A CN201610608151 A CN 201610608151A CN 106217774 A CN106217774 A CN 106217774A
- Authority
- CN
- China
- Prior art keywords
- water pipe
- forming die
- die sleeve
- pipe forming
- mould
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000000465 moulding Methods 0.000 title claims abstract description 17
- 230000008569 process Effects 0.000 title claims abstract description 12
- 238000002347 injection Methods 0.000 claims abstract description 27
- 239000007924 injection Substances 0.000 claims abstract description 27
- 229920003023 plastic Polymers 0.000 claims description 38
- 239000004033 plastic Substances 0.000 claims description 38
- 238000007493 shaping process Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 7
- 238000005507 spraying Methods 0.000 description 5
- 239000002994 raw material Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- B29C45/2602—Mould construction elements
-
- 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
- B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
- B29C37/0092—Drying moulded articles or half products, e.g. preforms, during or after moulding or cooling
-
- 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
- B29C45/2669—Moulds with means for removing excess material, e.g. with overflow cavities
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
-
- 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
- B29C45/27—Sprue channels ; Runner channels or runner nozzles
- B29C45/28—Closure devices therefor
-
- 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
- B29C45/72—Heating or cooling
- B29C45/73—Heating or cooling of the mould
-
- 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
- B29L2023/00—Tubular articles
Abstract
The present invention relates to a kind of New type water pipe mould, including die ontology, die ontology is provided with water pipe forming die sleeve, it is provided with die cavity in water pipe forming die sleeve, one end of water pipe forming die sleeve connects injection hole, the other end of water pipe forming die sleeve connects flash groove, is provided with piston in injection hole, and the end of piston is corresponding with the die cavity of water pipe forming die sleeve；Injection hole is provided with conical nozzle with the junction of water pipe forming die sleeve, conical nozzle is provided with nozzle group valve with the junction of water pipe forming die sleeve, flash groove connects discharge nozzle, flash groove is provided with the first outlet valve with the junction of water pipe forming die sleeve, discharge nozzle is provided with the second outlet valve, and water pipe forming die sleeve is provided with the water filling port connected with its die cavity；The water pipe moulding process of water pipe mould, including material feeding and molding, the structure of traditional piping material mould overturned by this mould, and from becoming a set of brand-new water pipe moulding process, overall structure is simple, and processing step is few and stable.
Description
Technical field
The present invention relates to a kind of water pipe mould and water pipe moulding process.
Background technology
In prior art, the production of feed pipe is all by pipe mold extrusion molding.Tubing raw material is by feedwater pipe die
Tool obtains pipe, is shaped by shaping cover and spraying box, then obtains feed pipe by traction machine and cutting machine.At present, often
Water feeding pipe mould include sub-runner, core and mouth die, tubing raw material through core and mouth die sub-runner obtain pipe
Base, then passes shaping cover and spraying box by artificial or traction tube by pipe, leads on traction machine, in this process will pipe
Base end is threaded together, and otherwise cannot pass shaping cover, therefore pipe has just been initially flat.Owing to pipe port is screwed in together,
Air is plugged and cannot be introduced into pipe, and pipe inner air is more and more thinner along with the traction of pipe, and air pressure is the lowest, and shaping cover
With spraying box owing to cannot effectively seal, air is caused to enter, it is impossible to keep vacuum state, therefore shaping cover internal gas pressure is more than pipe
Internal gas pressure, under gas pressure, pipe is always flat, is difficult to become round sizing.Therefore, use at mouth die trickle and at pipe
The method of lower perforate makes pipe air pressure inside be more than outside shaping cover air pressure, so that pipe becomes round sizing.But, use this
Method, it is necessary to after waiting the pipe section of perforate to pass spraying box, spraying box just starts trickle, not so can affect tubing internal soundness,
Wave stripe occurs.So using this mould to produce, starting shooting or after the pipe that breaks, again leading pipe, troublesome poeration, inefficiency, with
Shi Rongyi produces waste product, increases manufacturing cost.
Summary of the invention
The invention aims to the defect existing for pipe mold in solution prior art, it is provided that a kind of New type water pipe
The water pipe moulding process of mould and this mould.
To achieve these goals, the technical solution used in the present invention is:
A kind of New type water pipe mould, including die ontology, is provided with water pipe forming die sleeve, at water pipe forming die sleeve on die ontology
Inside being provided with die cavity, one end of described water pipe forming die sleeve connects injection hole, and the other end of water pipe forming die sleeve connects flash groove, institute
Being provided with piston in stating injection hole, the end of piston is corresponding with the die cavity of described water pipe forming die sleeve；
The junction of described injection hole and water pipe forming die sleeve is provided with the connection of conical nozzle, conical nozzle and water pipe forming die sleeve
Place is provided with nozzle group valve, and described flash groove connects discharge nozzle, and flash groove is provided with the first outlet valve with the junction of water pipe forming die sleeve,
Discharge nozzle is provided with the second outlet valve.
Above-mentioned a kind of New type water pipe mould, described water pipe forming die sleeve is provided with the water filling port connected with its die cavity.
Above-mentioned a kind of New type water pipe mould, described water filling port connects the auxiliary generator of water or air pump.
The water pipe moulding process of above-mentioned a kind of New type water pipe mould, comprises the steps:
A, the past auxiliary liquid of injection hole injected plastic, close nozzle group valve and the first outlet valve；
B, open nozzle group valve keep first outlet valve close so that injection hole connect with the die cavity of water pipe forming die sleeve, promotion work
Plug makes the auxiliary liquid of the plastics in injection hole enter in the die cavity of water pipe forming die sleeve and be full of die cavity；
C, closedown nozzle group valve, the auxiliary generator of water starts to inject water by water filling port in the die cavity of water pipe forming die sleeve, and hydraulic pressure is excellent
Elect 25MPa as；
D, opening the first outlet valve, the plastics in the middle part of water pipe forming die sleeve die cavity are squeezed in flash groove by water column；
E, the second outlet valve opened on discharge nozzle, the plastics in flash groove are discharged from discharge nozzle, and water is from water pipe forming die sleeve
Entering flash groove and be discharged from discharge nozzle, the plastics in water pipe forming die sleeve die cavity tentatively solidify the plastic tube pipe forming hollow
Base；
The state that f, holding nozzle group valve closedown, the first outlet valve, the second outlet valve are opened, air pump passes through water filling port towards water pipe molding
Inject dry air in the die cavity of die sleeve, in the hollow channel of dry air entrance plastic tube pipe, make plastic tube pipe enter one
Step is dried, and is discharged from discharge nozzle by the dry air of plastic tube pipe.
The invention have the benefit that the die ontology of this water pipe mould is provided with water pipe forming die sleeve, in water pipe molding
Being provided with die cavity in die sleeve, one end of water pipe forming die sleeve connects injection hole, and the other end of water pipe forming die sleeve connects flash groove, note
Being provided with piston in moulding mouth, the end of piston is corresponding with the die cavity of water pipe forming die sleeve, injection hole and the company of water pipe forming die sleeve
The place of connecing is provided with conical nozzle, and conical nozzle is provided with nozzle group valve with the junction of water pipe forming die sleeve, and flash groove connects discharge nozzle, overflows
Hopper is provided with the first outlet valve with the junction of water pipe forming die sleeve, and discharge nozzle is provided with the second outlet valve, water pipe forming die sleeve
It is provided with the water filling port connected with its die cavity, controls to enter into the auxiliary liquid of plastics in water pipe forming die sleeve by nozzle group valve and piston
Inlet, the plastics in making water pipe forming die sleeve die cavity by water filling port toward water pipe forming die sleeve injection water tentatively solidify formation
The plastic tube pipe of hollow, air pump injects dry air by water filling port in the die cavity of water pipe forming die sleeve, and dry air enters
Making plastic tube pipe be further dried in entering the hollow channel of plastic tube pipe, water pipe is the most plastic, and biography overturned by this mould
The structure of system pipe mold, from becoming a set of brand-new water pipe moulding process, overall structure is simple, and processing step is few and stable.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the mould structure schematic diagram that present invention process step a is corresponding；
Fig. 3 is the mould structure schematic diagram that present invention process step b is corresponding;
Fig. 4 is the mould structure schematic diagram that present invention process step c is corresponding;
Fig. 5 is the mould structure schematic diagram that present invention process step d is corresponding;
Fig. 6 is the mould structure schematic diagram that present invention process step e is corresponding;
Fig. 7 is the mould structure schematic diagram that present invention process step f is corresponding.
Detailed description of the invention
As shown in Figure 1, Figure 3, a kind of New type water pipe mould, including die ontology 1, die ontology 1 is provided with water pipe
Pattern set 2, is provided with die cavity 3 in water pipe forming die sleeve 2, and one end of water pipe forming die sleeve 2 connects injection hole 4, water pipe shaping mould
The other end of set 2 connects flash groove 5, is provided with piston 6 in injection hole 4, die cavity 3 phase of the end of piston 6 and water pipe forming die sleeve 2
Corresponding；
Injection hole 4 is provided with conical nozzle 7, conical nozzle 7 and the company of water pipe forming die sleeve 2 with the junction of water pipe forming die sleeve 2
The place of connecing is provided with nozzle group valve 8, and flash groove 5 connects discharge nozzle 9, and flash groove 5 is provided with the first discharging with the junction of water pipe forming die sleeve 2
Valve 10, discharge nozzle 9 is provided with the second outlet valve 11, and water pipe forming die sleeve 2 is provided with the water filling port 12 connected with its die cavity 3, note
The mouth of a river 12 connects the auxiliary generator of water or air pump.
As shown in Figures 2 to 7, the water pipe moulding process of a kind of New type water pipe mould, comprise the steps:
A, the past injection hole 4 auxiliary liquid of injected plastic, close nozzle group valve 8 and the first outlet valve 10；
B, open nozzle group valve 8 and keep the first outlet valve 10 to close so that injection hole 4 connects with the die cavity 3 of water pipe forming die sleeve 2,
Piston 6 is promoted to make the auxiliary liquid of the plastics in injection hole 4 enter in the die cavity 3 of water pipe forming die sleeve 2 and be full of die cavity 3；
C, closedown nozzle group valve 8, the auxiliary generator of water starts to inject water, water by water filling port 12 in the die cavity 3 of water pipe forming die sleeve 2
Pressure is preferably 25MPa；
D, opening the first outlet valve 10, in water pipe forming die sleeve 2 die cavity, the plastics at middle part are squeezed in flash groove 5；
E, the second outlet valve 11 opened on discharge nozzle 9, the plastics in flash groove 5 are discharged from discharge nozzle 9, and water is from water pipe molding
Die sleeve 2 enters flash groove 5 and is discharged from discharge nozzle 9, and the plastics in water pipe forming die sleeve 2 die cavity tentatively solidify and form hollow
Plastic tube pipe 13；
F, the holding state that nozzle group valve 8 cuts out, first outlet valve the 10, second outlet valve 11 is opened, air pump passes through water filling port 12 court
Inject dry air in the die cavity 3 of water pipe forming die sleeve 2, make to mould in the hollow channel of dry air entrance plastic tube pipe 13
Material pipe pipe 13 is further dried, and is discharged from discharge nozzle 9 by the dry air of plastic tube pipe 13.
The die ontology 1 of this water pipe mould is provided with water pipe forming die sleeve 2, is provided with die cavity 3 in water pipe forming die sleeve 2,
One end of water pipe forming die sleeve 2 connects injection hole 4, and the other end of water pipe forming die sleeve 2 connects flash groove 5, is provided with in injection hole 4
Piston 6, the end of piston 6 is corresponding with the die cavity 3 of water pipe forming die sleeve 2, injection hole 4 and the junction of water pipe forming die sleeve 2
Being provided with conical nozzle 7, conical nozzle 7 is provided with nozzle group valve 8 with the junction of water pipe forming die sleeve 2, and flash groove 5 connects discharge nozzle 9,
Flash groove 5 is provided with the first outlet valve 10 with the junction of water pipe forming die sleeve 2, and discharge nozzle 9 is provided with the second outlet valve 11, water pipe
Forming die sleeve 2 is provided with the water filling port 12 connected with its die cavity 3, controls to enter into water pipe shaping mould by nozzle group valve 8 and piston 6
In set 2, the inlet of plastic raw materials, injects water by water filling port 12 toward water pipe forming die sleeve 2 and makes water pipe forming die sleeve 2 die cavity
In plastics tentatively solidify the plastic tube pipe forming hollow, air pump by water filling port 12 towards in the die cavity of water pipe forming die sleeve 2
Inject dry air, in the hollow channel of dry air entrance plastic tube pipe, plastic tube pipe is further dried, water pipe
The most plastic, the structure of traditional piping material mould overturned by this mould, from becoming a set of brand-new water pipe moulding process, and overall structure letter
Single, processing step is few and stable.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
The personnel simply present invention it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these change and
Improvement both falls within the range of claimed invention.The protection domain of application claims by appending claims and
Equivalent defines.
Claims (4)
1. a New type water pipe mould, including die ontology, is provided with water pipe forming die sleeve, at water pipe shaping mould on die ontology
Die cavity it is provided with, it is characterised in that one end of described water pipe forming die sleeve connects injection hole, the other end of water pipe forming die sleeve in set
Connecting flash groove, be provided with piston in described injection hole, the end of piston is corresponding with the die cavity of described water pipe forming die sleeve；
The junction of described injection hole and water pipe forming die sleeve is provided with the connection of conical nozzle, conical nozzle and water pipe forming die sleeve
Place is provided with nozzle group valve, and described flash groove connects discharge nozzle, and flash groove is provided with the first outlet valve with the junction of water pipe forming die sleeve,
Discharge nozzle is provided with the second outlet valve.
A kind of New type water pipe mould the most according to claim 1, it is characterised in that described water pipe forming die sleeve be provided with
The water filling port of its die cavity connection.
A kind of New type water pipe mould the most according to claim 2, it is characterised in that described water filling port connects the auxiliary generator of water
Or air pump.
4. a water pipe moulding process based on a kind of New type water pipe mould described in claim 3, it is characterised in that include as
Lower step:
A, the past auxiliary liquid of injection hole injected plastic, close nozzle group valve and the first outlet valve；
B, open nozzle group valve keep first outlet valve close so that injection hole connect with the die cavity of water pipe forming die sleeve, promotion work
Plug makes the auxiliary liquid of the plastics in injection hole enter in the die cavity of water pipe forming die sleeve and be full of die cavity；
C, closedown nozzle group valve, the auxiliary generator of water starts to inject water by water filling port in the die cavity of water pipe forming die sleeve, and hydraulic pressure is excellent
Elect 25MPa as；
D, opening the first outlet valve, the plastics in the middle part of water pipe forming die sleeve die cavity are squeezed in flash groove by water column；
E, the second outlet valve opened on discharge nozzle, the plastics in flash groove are discharged from discharge nozzle, and water is from water pipe forming die sleeve
Entering flash groove and be discharged from discharge nozzle, the plastics in water pipe forming die sleeve die cavity tentatively solidify the plastic tube pipe forming hollow
Base；
The state that f, holding nozzle group valve closedown, the first outlet valve, the second outlet valve are opened, air pump passes through water filling port towards water pipe molding
Inject dry air in the die cavity of die sleeve, in the hollow channel of dry air entrance plastic tube pipe, make plastic tube pipe enter one
Step is dried, and is discharged from discharge nozzle by the dry air of plastic tube pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610608151.4A CN106217774A (en) | 2016-07-29 | 2016-07-29 | A kind of water pipe moulding process of New type water pipe mould and this mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610608151.4A CN106217774A (en) | 2016-07-29 | 2016-07-29 | A kind of water pipe moulding process of New type water pipe mould and this mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106217774A true CN106217774A (en) | 2016-12-14 |
Family
ID=57535049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610608151.4A Pending CN106217774A (en) | 2016-07-29 | 2016-07-29 | A kind of water pipe moulding process of New type water pipe mould and this mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106217774A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565825A (en) * | 2003-06-11 | 2005-01-19 | 全立发机械厂股份有限公司 | Water assistant jetting and forming method |
| CN102848520A (en) * | 2012-09-18 | 2013-01-02 | 宁波舜宇模具有限公司 | Water needle device for water-assisted injection molding production |
| CN103112126A (en) * | 2013-01-15 | 2013-05-22 | 浙江世纪华通车业股份有限公司 | Water-assisted injection forming die of automobile cooling water pipe and using method thereof |
| CN103407087A (en) * | 2013-08-26 | 2013-11-27 | 华东交通大学 | Water-assisted (co-injection) injection mold for complex-formed tube and stick plastic parts |
| CN104552766A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system of hollow-pipe product of thermoplastic resin and molding method |
| CN104552767A (en) * | 2015-01-31 | 2015-04-29 | 北京中拓机械集团有限责任公司 | Fluid-assisted injection molding system |
| CN205853259U (en) * | 2016-07-29 | 2017-01-04 | 江西通达实业有限公司 | A kind of New type water pipe mould |
-
2016
- 2016-07-29 CN CN201610608151.4A patent/CN106217774A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1565825A (en) * | 2003-06-11 | 2005-01-19 | 全立发机械厂股份有限公司 | Water assistant jetting and forming method |
| CN102848520A (en) * | 2012-09-18 | 2013-01-02 | 宁波舜宇模具有限公司 | Water needle device for water-assisted injection molding production |
| CN103112126A (en) * | 2013-01-15 | 2013-05-22 | 浙江世纪华通车业股份有限公司 | Water-assisted injection forming die of automobile cooling water pipe and using method thereof |
| CN103407087A (en) * | 2013-08-26 | 2013-11-27 | 华东交通大学 | Water-assisted (co-injection) injection mold for complex-formed tube and stick plastic parts |
| CN104552766A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system of hollow-pipe product of thermoplastic resin and molding method |
| CN104552767A (en) * | 2015-01-31 | 2015-04-29 | 北京中拓机械集团有限责任公司 | Fluid-assisted injection molding system |
| CN205853259U (en) * | 2016-07-29 | 2017-01-04 | 江西通达实业有限公司 | A kind of New type water pipe mould |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161214 |
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| RJ01 | Rejection of invention patent application after publication |