CN108527792A - A kind of injection device of the auxiliary injection molding of water with pressure detecting - Google Patents
A kind of injection device of the auxiliary injection molding of water with pressure detecting Download PDFInfo
- Publication number
- CN108527792A CN108527792A CN201810315515.9A CN201810315515A CN108527792A CN 108527792 A CN108527792 A CN 108527792A CN 201810315515 A CN201810315515 A CN 201810315515A CN 108527792 A CN108527792 A CN 108527792A
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- Prior art keywords
- water
- injection
- liquid drugs
- pressure
- screw
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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
- B29C45/0025—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
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
-
- 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
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
- B29C45/50—Axially movable screw
- B29C45/5092—Intrusion moulding, i.e. the screw rotates during injection
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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
- B29C45/76—Measuring, controlling or regulating
-
- 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
- B29C45/1703—Introducing an auxiliary fluid into the mould
- B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
- B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
- B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76003—Measured parameter
- B29C2945/76006—Pressure
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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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76177—Location of measurement
- B29C2945/76297—Fluids
- B29C2945/76301—Fluids auxiliary fluids introduced into the cavity
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76344—Phase or stage of measurement
- B29C2945/76351—Feeding
- B29C2945/76361—Feeding auxiliary fluids, e.g. gas, liquid
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
-
- 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
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76665—Injection unit screw
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of injection device of the auxiliary injection molding of water with pressure detecting, including screw of injection machine, mold, water needle device；The screw rod of the screw of injection machine is divided into feeding section, compression section and metering section；The water needle device includes liquid drugs injection core bar and liquid drugs injection pedestal, the liquid drugs injection pedestal is equipped with intake tunnel and device for detecting water pressure, have into water space between the liquid drugs injection core bar and liquid drugs injection pedestal, intake tunnel and mold cavity should be connected into water space, there is cast gate on the mold, pressure sensor is equipped at the cast gate, the device for detecting water pressure, pressure sensor are connected with screw of injection machine.The present invention uses the injection device with pressure detecting, simple in structure, can prevent macromolecule molten mass from blocking liquid drugs injection；Screw control can accurately control the pressure of screw rod rollback, ensure that polymer melt is consistent in character.
Description
Technical field
The present invention relates to injection molding field, especially a kind of injection device of the auxiliary injection molding of water with pressure detecting.
Background technology
Gas assistant injection molding be it is a kind of inject inert gas into the mold cavity containing molten mass, obtain hollow system
The technology of product, this technology can reduce buckling deformation and the surface pitting of product, mitigate quality, reduce cost, shorten molding
Period.Gas assistant injection molding is widely used in each manufacturing field of automobile, furniture, household electrical appliances and articles for daily use at present, but
It is this technology existing defects：Major diameter product cannot be produced；The product wall of production is thicker；Product needs cooling time longer,
There is the danger of flux foaming.
Gas is with compressibility and water is with Incoercibility, and the capacity of heat transmission of water is probably 40 times of gas, and
The specific heat capacity of water is far longer than gas, and the auxiliary injection molding technology of water is gradually developed using these properties, it is assisted with gas
Injection molding technology is similar, is a kind of novel hollow or part shaping hollow products method of production.The auxiliary injection molding tool of water
There are following characteristics：The melt core that high pressure water is injected to mold, cools down product from the core of product wall thickness, from inside to outside
It is cooling abundant, shorten the molding cycle of product；Melt is close to die cavity wall flowing cooling and solidifying under the action of high pressure water, before flow
Passage makes more melt flow forwards to the fluid on sharp side forward under hydraulic pressure effect, cooling uniform, shrinks consistent, obtained system
Product inner surface smoother, the more smooth no shrink mark in outer surface；It is accurately controlled in addition, the temperature of water, pressure, flow etc. are easy,
The source of water is more more convenient than the inert gas of gas-assisted molding to be easy to get, economical and effective, and aqueous medium can also repeat profit
With.
The existing auxiliary injection molding technology of water is higher to the seal request of mold cavity when implementing, the cost of implementation compared with
Height, and the problem of water needle device is easy to happen blocking, the Authorization Notice No. as disclosed in Chinese patent literature is
CN201342780Y, outer groove disengaging ability of swimming injection molding water needle, the water needle device being combined using liquid drugs injection casing and liquid drugs injection core bar,
The device and screw of injection machine are separated, after material melts body is injected into mold cavity, using water needle device to mould type
High pressure water is injected in chamber, the device is relatively high to the sealing effect requirement of mold, and water needle device is more complicated, if injection in mold
Melting body unit deficiency when, product, which is easy to happen, lacks material, the even defect of became uneven；The injection of polymeric molten mass
To inject die cavity in a short period of time, the macromolecule molten mass that injection die cavity backflows due to the overlong time in die cavity, with
Original macromolecule molten mass is extremely difficult to unanimously, the performance of product can be made unstable in character in barrel.
Invention content
In order to overcome the macromolecule molten mass and barrel that the auxiliary injection molding water needle device of water is easily blocked, backflowed in the prior art
Interior original macromolecule molten mass is being extremely difficult to the defects of consistent in character, it is with pressure that the present invention provides a kind of auxiliary injection molding of water
The injection device of power detection, what is used can control water with the water needle device of movable liquid drugs injection core bar by the movement of liquid drugs injection core bar
The opening and closing of needle device water filling port avoids the blocking of liquid drugs injection.
The technical solution adopted by the present invention to solve the technical problems is：A kind of note of the auxiliary injection molding of water with pressure detecting
Injection device, including screw of injection machine, mold and water needle device, the screw of injection machine include screw rod, feed hopper, machine barrel and spiral shell
Rod controller, the screw rod are divided into feeding section, compression section and metering section, and the feed hopper is located at the upper of screw of injection machine
There is molten mass in portion between the screw rod and machine barrel, there is cast gate, lower end and the water needle device phase of the mold on the mold
Connection, the water needle device include liquid drugs injection core bar and liquid drugs injection pedestal, and the liquid drugs injection pedestal is equipped with intake tunnel and hydraulic pressure is examined
Device is surveyed, is had into water space between the liquid drugs injection core bar and liquid drugs injection pedestal, it is described to connect intake tunnel into water space
It is equipped with piston cylinder, air inlet and gas outlet with the lower part of the cavity of mold, the water needle device.
A kind of above-mentioned injection device of the auxiliary injection molding of water with pressure detecting, the screw of injection machine pass through with mold
Injection-tube is connected.
A kind of above-mentioned injection device of the auxiliary injection molding of water with pressure detecting, the liquid drugs injection core bar and liquid drugs injection pedestal it
Between into water space between 0.1-0.4mm.
A kind of above-mentioned injection device of the auxiliary injection molding of water with pressure detecting, the air inlet and gas outlet can
Air inlet or outlet；When air inlet and gas outlet are all closed, liquid drugs injection core bar is fixed；Work as inlet charge, gas outlet outlet
When, gas push piston cylinder makes liquid drugs injection core bar move upwards, and water filling port is closed；When gas outlet air inlet, air inlet outlet, gas
Push piston cylinder that liquid drugs injection core bar is made to move downward, water filling port is opened.
Above-mentioned injection device of the auxiliary injection molding of a kind of water with pressure detecting, at the device for detecting water pressure, cast gate
Pressure sensor be connected with screw control；When water filling port is closed, screw control controls screw rod rotation,
So that molten mass is full of the cavity of mold, at this point, gas outlet air inlet, air inlet outlet, gas push piston cylinder make liquid drugs injection core bar to
Lower movement, water filling port are opened, and water needle device notes high pressure water by water filling port to cavity, and molten mass is forced to return to screw rod note from cavity
Machine is penetrated, the pressure sensor at cast gate detects the pressure in mold, is transmitted to screw control, and screw control controls screw rod and returns
The speed moved back makes the pressure in the speed and mold of screw rod rollback match, and when water is full of entire cavity, screw rod stops back
It moves back；Water filling port is closed, cavity pressurize, molten mass cooling and shaping.
The invention has the advantages that the present invention provides a kind of injection device of the auxiliary injection molding of water with pressure detecting,
The movement that liquid drugs injection core bar is controlled using piston cylinder avoids liquid drugs injection from blocking to control the closing of water filling port；It is detected using with hydraulic pressure
The water needle device of function can detect hydraulic pressure, and hydraulic pressure information is passed to screw control at any time；Its cast gate of the mold of use
Place is equipped with pressure sensor, and when high pressure water injects the inside of molten mass, not solidified molten mass is pushed out die cavity and flows back into barrel,
For pressure sensor by the pressure transmission of molten mass to screw control, screw control can accurately control screw rod rollback at this time
Speed, ensure that the macromolecule molten mass to backflow and macromolecule molten mass original in barrel are almost the same in character, make system
The performance of product tends towards stability.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is that the mold cavity of the present invention fills the schematic diagram of molten mass；
Fig. 2 is that the mold cavity molten mass core of the present invention fills the schematic diagram of water；
Fig. 3 is the schematic diagram that water needle device water filling port is closed；
Fig. 4 is the schematic diagram that water needle device water filling port is opened.
1. water needle device in figure, 2. air inlets, 3. gas outlets, 4. water inlets, 5. liquid drugs injection pedestals, 6. intake tunnels, 7. water
Needle core bar, 8. device for detecting water pressure, 9. into water space, 10. water filling ports, 11. mould inner walls, 12. molds, 13. molten masses, and 14.
Cavity, 15. cast gates, 16. feed hoppers, 17. screw of injection machines, 18. screw rods, 19. screw controls, 20. piston cylinders.
Specific implementation mode
To make those skilled in the art be better understood from technical scheme of the present invention, below in conjunction with the accompanying drawings and specific embodiment party
Formula elaborates to the present invention.
Injection device of the auxiliary injection molding of water with pressure detecting, including screw of injection machine 17, mold 12 and water needle device 1,
The screw of injection machine 17 includes screw rod 18, feed hopper 16, machine barrel and screw control 19, and the screw rod 18 divides for charging
Section, compression section and metering section, the feed hopper 16 are located at the top of screw of injection machine 17, have between the screw rod 18 and machine barrel
Molten mass 13 has cast gate 15, the lower end of the mold 12 to be connected with water needle device 1 on the mold 12, the water
Needle device 1 includes liquid drugs injection core bar 7 and liquid drugs injection pedestal 5, and the liquid drugs injection pedestal 5 is equipped with intake tunnel 6 and device for detecting water pressure 8,
Have between the liquid drugs injection core bar 7 and liquid drugs injection pedestal 5 into water space 9, it is described to connect 6 He of intake tunnel into water space 9
The lower part of the cavity 14 of mold 12, the water needle device 1 is equipped with piston cylinder 20, air inlet 2 and gas outlet 3.The screw rod
Injector 17 is connected with mold 12 by injection-tube.It is wide into water space 9 between the liquid drugs injection core bar 7 and liquid drugs injection pedestal 5
For 0.3mm.2 gas outlet 3 of air inlet can air inlet and outlet；When air inlet 2 and gas outlet 3 are all closed, liquid drugs injection
Core bar 7 is fixed；When 2 air inlet of air inlet, 3 outlet of gas outlet, gas push piston cylinder 20 makes liquid drugs injection core bar 7 transport upwards
Dynamic, water filling port 10 is closed；When 3 air inlet of gas outlet, 2 outlet of air inlet, gas push piston cylinder 20 makes liquid drugs injection core bar 7 transport downwards
Dynamic, water filling port 10 is opened.Pressure sensor at the device for detecting water pressure 8, cast gate 15 is connected with screw control 19；
When water filling port 10 is closed, screw control 19 controls screw rod 18 and rotates, and molten mass 13 is made to be full of the type of mold 12
Chamber 14, at this point, 3 air inlet of gas outlet, 2 outlet of air inlet, gas push piston cylinder 20 make liquid drugs injection core bar 7 move downward, water filling port
10 open, and water needle device, to 14 note high pressure water of cavity, forces molten mass 13 to return to screw of injection from cavity 14 by water filling port 10
Machine 17, the pressure sensor at cast gate 15 detect the pressure in mold 12, are transmitted to screw control 19, and screw control 19 is controlled
The speed that screw rod 18 processed retracts makes the speed that screw rod 18 retracts match with the pressure in mold 12, when water is full of entire cavity
When 14, screw rod 18 stops retracting；Water filling port 10 is closed, 14 pressurize of cavity, 13 cooling and shaping of molten mass.
The course of work of the screw of injection machine 17 is as follows, 2 air inlet of air inlet, 3 outlet of gas outlet, in piston cylinder 20
Gas push liquid drugs injection core bar 7 moves upwards, and the water filling port 10 of water needle device 1 is closed, cavity of the screw of injection machine 17 to mold 12
Molten mass 13 is injected in 14, after molten mass 13 fills cavity 14,3 air inlet of gas outlet, 2 outlet of air inlet, the gas in piston cylinder 20
Body pushes liquid drugs injection core bar 7 to move downward, and the water filling port 10 of water needle device 1 is opened, and water passes through water inlet 4, intake tunnel 6, water inlet
Cavity 14 is injected in gap 9 by water filling port 10, and device for detecting water pressure 8 detects hydraulic pressure and passes information to screw control 19；Cast gate
Pressure sensor detection molten mass 13 at 15 backflows the pressure and speed of barrel, and passes information to screw control 19,
Screw control 19 controls the speed that screw rod 18 is retracted, the speed and pressure for so that screw rod 18 is retracted and the quilt from mold of molten mass 13
The speed and amount of release reach matching, and when water is full of entire cavity 14, screw rod 18 stops retracting, and water filling port 10 is closed, cavity
14 pressurizes, 13 cooling and shaping of molten mass；Then water filling port 10 is opened, the water in molten mass 13 after sizing is under gravity
Emptying；Then it molds, take out product.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (5)
1. a kind of injection device of the auxiliary injection molding of water with pressure detecting, including screw of injection machine (17), mold (12) and liquid drugs injection
Device (1), which is characterized in that the screw of injection machine (17) includes screw rod (18), feed hopper (16), machine barrel and screw rod control
Device (19), the screw rod (18) are divided into feeding section, compression section and metering section, and the feed hopper (16) is located at screw of injection machine
(17) top, the screw rod (18) have molten mass (13) between machine barrel, there is cast gate (15) on the mold (12), described
The lower end of mold (12) be connected with water needle device (1), the water needle device (1) includes liquid drugs injection core bar (7) and liquid drugs injection bottom
Seat (5), the liquid drugs injection pedestal (5) are equipped with intake tunnel (6) and device for detecting water pressure (8), the liquid drugs injection core bar (7) and water
Have between needle pedestal (5) into water space (9), the type that intake tunnel (6) and mold (12) can be connected into water space (9)
Chamber (14), the lower part of the water needle device (1) are equipped with piston cylinder (20), air inlet (2) and gas outlet (3).
2. injection device of the auxiliary injection molding of a kind of water with pressure detecting according to claim 1, which is characterized in that described
Screw of injection machine (17) be connected by injection-tube with mold (12).
3. injection device of the auxiliary injection molding of a kind of water with pressure detecting according to claim 1, which is characterized in that described
Liquid drugs injection core bar (7) and liquid drugs injection pedestal (5) between into water space (9) between 0.1-0.4mm.
4. injection device of the auxiliary injection molding of a kind of water with pressure detecting according to claim 1, which is characterized in that described
Air inlet (2) and gas outlet (3) can air inlet or outlet；When air inlet (2) and gas outlet (3) are all closed, liquid drugs injection core
Bar (7) is fixed；When air inlet (2) air inlet, gas outlet (3) outlet, gas push piston cylinder (20) makes liquid drugs injection core bar (7)
It moves upwards, water filling port (10) is closed；When gas outlet (3) air inlet, air inlet (2) outlet, gas push piston cylinder (20) makes
Liquid drugs injection core bar (7) moves downward, and water filling port (10) is opened.
5. injection device of the auxiliary injection molding of a kind of water with pressure detecting according to claim 1, which is characterized in that described
Device for detecting water pressure (8), the pressure sensor at cast gate (15) is connected with screw control (19)；At water filling port (10)
When closed state, screw control (19) controls screw rod (18) and rotates, and molten mass (13) is made to be full of the cavity of mold (12)
(14), at this point, gas outlet (3) air inlet, air inlet (2) outlet, gas push piston cylinder (20) make liquid drugs injection core bar (7) transport downwards
Dynamic, water filling port (10) is opened, and water needle device notes high pressure water by water filling port (10) to cavity (14), forces molten mass (13) autotype
Chamber (14) returns to screw of injection machine (17), and the pressure sensor at cast gate (15) detects the pressure in mold (12), by information
It is transmitted to screw control (19), screw control (19) controls the speed and pressure that screw rod (18) retracts, and screw rod (18) is made to retract
Speed, the pressure in pressure and mold (12) match, when core of the water full of the molten mass (13) in entire cavity (14)
When, screw rod (18) stops retracting；Water filling port (10) is closed, cavity pressurize, molten mass (13) cooling and shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315515.9A CN108527792B (en) | 2018-04-10 | 2018-04-10 | Injection device with pressure detection function for water-assisted injection molding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810315515.9A CN108527792B (en) | 2018-04-10 | 2018-04-10 | Injection device with pressure detection function for water-assisted injection molding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108527792A true CN108527792A (en) | 2018-09-14 |
| CN108527792B CN108527792B (en) | 2021-06-08 |
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ID=63479802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810315515.9A Expired - Fee Related CN108527792B (en) | 2018-04-10 | 2018-04-10 | Injection device with pressure detection function for water-assisted injection molding |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109501185A (en) * | 2018-11-27 | 2019-03-22 | 湖北工业大学 | Injection molding process on-line monitoring method |
| CN110435079A (en) * | 2019-08-06 | 2019-11-12 | 宁波信泰机械有限公司 | A kind of auxiliary injection moulding apparatus of automobile luggage racks water and method |
| CN113942207A (en) * | 2021-10-14 | 2022-01-18 | 苏州恩都模塑科技有限公司 | Injection molding process and equipment for adaptively adjusting injection pressure in circulating cavity |
| CN114311490A (en) * | 2022-03-16 | 2022-04-12 | 广东伊之密精密注压科技有限公司 | Water-assisted back-extrusion injection molding method and water-assisted injection molding machine |
| CN116175867A (en) * | 2023-04-25 | 2023-05-30 | 汕头市华美塑料模具实业有限公司 | Constant-pressure water-assisted reverse extrusion injection molding device and method for degradable plastic daily necessities |
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| WO2008009033A1 (en) * | 2006-07-17 | 2008-01-24 | Haidlmair Holding Gmbh | Injection moulding process and injection mould |
| CN104552745A (en) * | 2015-01-31 | 2015-04-29 | 长春中拓模塑科技有限公司 | Injection molding system for thermoplastic resin hollow tube products |
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2018
- 2018-04-10 CN CN201810315515.9A patent/CN108527792B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07137080A (en) * | 1993-09-22 | 1995-05-30 | Asahi Chem Ind Co Ltd | Hollow injection molding method and pressure fluid introducing/discharging device used therein |
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| CN109501185A (en) * | 2018-11-27 | 2019-03-22 | 湖北工业大学 | Injection molding process on-line monitoring method |
| CN110435079A (en) * | 2019-08-06 | 2019-11-12 | 宁波信泰机械有限公司 | A kind of auxiliary injection moulding apparatus of automobile luggage racks water and method |
| CN113942207A (en) * | 2021-10-14 | 2022-01-18 | 苏州恩都模塑科技有限公司 | Injection molding process and equipment for adaptively adjusting injection pressure in circulating cavity |
| CN114311490A (en) * | 2022-03-16 | 2022-04-12 | 广东伊之密精密注压科技有限公司 | Water-assisted back-extrusion injection molding method and water-assisted injection molding machine |
| CN114311490B (en) * | 2022-03-16 | 2022-07-29 | 广东伊之密精密注压科技有限公司 | Water-assisted reverse extrusion injection molding method and water-assisted injection molding machine |
| CN116175867A (en) * | 2023-04-25 | 2023-05-30 | 汕头市华美塑料模具实业有限公司 | Constant-pressure water-assisted reverse extrusion injection molding device and method for degradable plastic daily necessities |
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