CN109570471A - A kind of more gate pressure casting dies of variable diameter runner - Google Patents
A kind of more gate pressure casting dies of variable diameter runner Download PDFInfo
- Publication number
- CN109570471A CN109570471A CN201710894679.7A CN201710894679A CN109570471A CN 109570471 A CN109570471 A CN 109570471A CN 201710894679 A CN201710894679 A CN 201710894679A CN 109570471 A CN109570471 A CN 109570471A
- Authority
- CN
- China
- Prior art keywords
- pressure sensor
- plc
- pressure
- oil cylinder
- connect
- 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
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Classifications
-
- 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
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
-
- 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
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2272—Sprue channels
-
- 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
- B22D17/32—Controlling equipment
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention discloses a kind of more gate pressure casting dies of variable diameter runner, including upper die and lower die, and the upper die and lower die intersection is type chamber, and the type chamber has thick wall portion and thinner wall section；Stripper plate is arranged in the lower section of thick wall portion, and the piston rod of the stripper plate and the second oil cylinder is fixed；Pass through flange series connection pressure sensor one on the piston rod of second oil cylinder；Injection ram passes through flange series connection pressure sensor two；The diameter at runner both ends is different, and the pressure sensor one and pressure sensor two are connect with PLC；The PLC is also connect with the hydraulic pump of injection cylinder and the second oil cylinder；After the PLC is received after the signal of pressure sensor one and pressure sensor two compared with preset setting value, the output pressure of hydraulic pump is controlled.The invention has the advantages that due to using programmable controller, it can be preset according to the wall thickness of workpiece, material, to guarantee the reasonable words of the pressure applied, ensure that casting quality.
Description
Technical field
The present invention relates to machinery field, specifically a kind of compression mod.
Background technique
Die casting generally requires part uniform wall thickness as far as possible, to ensure to solidify simultaneously, so when production wall thickness difference is larger
Part when, the production status for the defects of just not can avoid shrinkage cavity at die casting heavy wall or shrinkage porosite.Using the method for partial Pressure
The defects of solidified structure of metal can be improved, reduce shrinkage cavity.Chinese Patent Application No. 201420275304.4 discloses a kind of " tool
There are the die casting of local pressurizing device, including bottom plate, lower cover half and upper dynamic model, the lower cover half includes model frame and cover half
Core, the cover half core are connected with the feeding channel communicated with the outside world, and the upper dynamic model includes dynamic model frame and moving-mould-core, the moving-mould-core
Die cavity to be cast is formed with cover half core, oil cylinder is equipped in the dynamic model frame, the piston rod of the oil cylinder passes through loaded pins connector sleeve
It is connected with loaded pins, countersunk head is equipped at the top of the loaded pins, the piston rod part of the oil cylinder is recessed equipped with matching with countersunk head
Slot, the countersunk head are equipped with pressure cuffs in groove in the moving-mould-core, the loaded pins move up and down with piston rod into dynamic
Pressure cuffs are passed through when mold core.", which is unable to control the pressure of application, in particular for improved pressure, therefore, it is impossible to suitable
Answer the requirement of hot investment casting.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of with the die casting for having accurate pressurizing device
Mould, using pressurized method, pressurized method is exactly by certain time that is, to cast after molten metal die-castingmold filling
In part process of setting, a pressure is applied by a pressure rod at heavy wall and eliminates the shrinkage cavity and porosity at this to force feeding and lacks
It falls into.Specific technical solution is as follows:
A kind of more gate pressure casting dies of variable diameter runner, including upper die and lower die, the upper die and lower die intersection are type
Chamber, the type chamber have thick wall portion and thinner wall section；Stripper plate, the work of the stripper plate and the second oil cylinder is arranged in the lower section of thick wall portion
Stopper rod is fixed；Pass through flange series connection pressure sensor one on the piston rod of second oil cylinder；The injection accent and injection are lived
Plug connection；Injection ram passes through flange series connection pressure sensor two；The diameter at runner both ends is different, from injection port major diameter cast gate
The diameter at end becomes larger, and gradually becomes smaller to minor diameter gate end；The pressure sensor one and pressure sensor two are and PLC
Connection；The PLC is also connect with the hydraulic pump of injection cylinder and the second oil cylinder；The PLC receives pressure sensor one and pressure
After the signal of sensor two compared with preset setting value after, control the output pressure of hydraulic pump；
Pressure sensor three is set on the hydraulic oil efferent duct of the hydraulic pump, and the pressure sensor three is connect with PLC.
The invention has the advantages that due to using programmable controller, i.e. the pressure of PLC control, therefore, can according to the wall thickness of workpiece,
Material is preset, to guarantee the reasonable words of the pressure applied, ensure that casting quality.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
The present invention is illustrated with reference to the accompanying drawing, as shown in Figure 1, the present invention includes upper mold 1, lower die 2, the upper mold 1
It is type chamber with 2 intersection of lower die, the type chamber has thick wall portion 3 and thinner wall section 4；Stripper plate 12, institute is arranged in the lower section of thick wall portion 3
The piston rod 10 for stating stripper plate 12 and the second oil cylinder 5 is fixed；It is connected pressure on the piston rod 10 of second oil cylinder by flange
Sensor 1；The injection accent 11 is connect with injection ram 13；Injection ram 13 passes through flange series connection pressure sensor 28；
The diameter at 16 both ends of runner is different, and the diameter from injection port to 14 end of major diameter cast gate becomes larger, to 15 end of minor diameter cast gate
It gradually becomes smaller；The pressure sensor 1 and pressure sensor 28 are connect with PLC9；The PLC9 also with injection cylinder 6 and
The hydraulic pump of second oil cylinder 5 connects；The PLC receive after the signal of pressure sensor 1 and pressure sensor 28 with set in advance
Fixed setting value relatively after, control the output pressure of hydraulic pump.
To achieve the purpose that accurately to control, to monitor in real time, pressure is set on the hydraulic oil efferent duct of the hydraulic pump
Sensor three, the pressure sensor three are connect with PLC.
Claims (2)
1. a kind of more gate pressure casting dies of variable diameter runner, it is characterised in that: including upper die and lower die, the upper die and lower die are handed over
It is type chamber at remittance, the type chamber has thick wall portion and thinner wall section；Stripper plate, the stripper plate and second is arranged in the lower section of thick wall portion
The piston rod of oil cylinder is fixed；Pass through flange series connection pressure sensor one on the piston rod of second oil cylinder；The injection accent
It is connect with injection ram；Injection ram passes through flange series connection pressure sensor two；The diameter at runner both ends is different, big from injection port
The diameter of diameter gate end becomes larger, and gradually becomes smaller to minor diameter gate end；The pressure sensor one and pressure sensor
Two connect with PLC；The PLC is also connect with the hydraulic pump of injection cylinder and the second oil cylinder；The PLC receives pressure sensor
One and pressure sensor two signal after compared with preset setting value after, control the output pressure of hydraulic pump.
2. the more gate pressure casting dies of variable diameter runner according to claim 1, it is characterised in that: the hydraulic pump it is hydraulic
Pressure sensor three is set on oily efferent duct, and the pressure sensor three is connect with PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894679.7A CN109570471A (en) | 2017-09-28 | 2017-09-28 | A kind of more gate pressure casting dies of variable diameter runner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710894679.7A CN109570471A (en) | 2017-09-28 | 2017-09-28 | A kind of more gate pressure casting dies of variable diameter runner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109570471A true CN109570471A (en) | 2019-04-05 |
Family
ID=65912938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710894679.7A Pending CN109570471A (en) | 2017-09-28 | 2017-09-28 | A kind of more gate pressure casting dies of variable diameter runner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109570471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523952A (en) * | 2019-10-15 | 2019-12-03 | 广东铭利达科技有限公司 | A kind of local thin wall part die casting and die-casting process |
| CN114042867A (en) * | 2021-11-26 | 2022-02-15 | 山西柴油机工业有限责任公司 | Local pressurizing process for casting box body |
-
2017
- 2017-09-28 CN CN201710894679.7A patent/CN109570471A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523952A (en) * | 2019-10-15 | 2019-12-03 | 广东铭利达科技有限公司 | A kind of local thin wall part die casting and die-casting process |
| CN110523952B (en) * | 2019-10-15 | 2021-07-20 | 广东铭利达科技有限公司 | Local thin-wall part die-casting die and die-casting process |
| CN114042867A (en) * | 2021-11-26 | 2022-02-15 | 山西柴油机工业有限责任公司 | Local pressurizing process for casting box body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190405 |
|
| WD01 | Invention patent application deemed withdrawn after publication |