CN108372283A - A kind of die casting machine core-pulling device and core pulling method - Google Patents
A kind of die casting machine core-pulling device and core pulling method Download PDFInfo
- Publication number
- CN108372283A CN108372283A CN201810333016.2A CN201810333016A CN108372283A CN 108372283 A CN108372283 A CN 108372283A CN 201810333016 A CN201810333016 A CN 201810333016A CN 108372283 A CN108372283 A CN 108372283A
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- Prior art keywords
- core pulling
- quick
- energy storage
- accumulator
- pulling
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Links
- 238000004512 die casting Methods 0.000 title claims abstract description 54
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000004146 energy storage Methods 0.000 claims abstract description 67
- 239000003921 oil Substances 0.000 claims description 47
- 230000005611 electricity Effects 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 8
- 238000003860 storage Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 238000012797 qualification Methods 0.000 abstract description 6
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002687 intercalation Effects 0.000 description 1
- 238000009830 intercalation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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
- B22D17/2236—Equipment for loosening or ejecting castings from dies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The present invention relates to a kind of die casting machine core-pulling device and core pulling methods, including accumulator holder, accumulator and quick core pulling oil circuit board, accumulator there are two being mounted side by side vertically on the front end face of the accumulator holder, two accumulator upper ends are connected with the vertical rack between two, the vertical rack lower end is equipped with quick core pulling oil circuit board, quick core pulling oil circuit board front end face right part is equipped with quick core pulling valve, left part is equipped with quick core pulling energy storage valve, the accumulator lower end is mounted on accumulator air valve, the oil pipe for being equipped with quick core pulling energy storage unloading valve on the right side of the quick core pulling oil circuit board and being connected to accumulator.The present invention effectively shortens pumping, lock pin time, significantly shortens the production cycle, improves the features such as product qualification rate.
Description
Technical field
The present invention relates to die casting machine core-pulling device technical fields, more particularly to a kind of die casting machine core-pulling device and core pulling
Method.
Background technology
As die casting production efficiency and manufacturing technique requirent is continuously improved in Die Casting Industry, the original core pulling side of die casting machine
Method function is simple, efficiency is low, cannot meet the needs of Die Casting Industry middle and high end enterprise, in order to improve the core pulling efficiency of die casting machine,
Designing a kind of new core pulling starter is necessary.
Invention content
Technical problem to be solved by the invention is to provide a kind of die casting machine core-pulling device and core pulling methods, have effective
Shorten pumping, lock pin time, significantly shortens the production cycle, improves the features such as product qualification rate.
The technical solution adopted by the present invention to solve the technical problems is:A kind of die casting machine core-pulling device and core pulling are provided
Method, including accumulator holder, accumulator and quick core pulling oil circuit board, on the front end face of the accumulator holder it is vertical side by side
There are two accumulators for installation, and two accumulator upper ends are connected with the vertical rack between two, under the vertical rack
End is equipped with quick core pulling oil circuit board, and quick core pulling oil circuit board front end face right part is equipped with quick core pulling valve, left part is equipped with soon
Fast core pulling energy storage valve, the accumulator lower end are mounted on accumulator air valve, are installed on the right side of the quick core pulling oil circuit board
The oil pipe for having quick core pulling energy storage unloading valve and being connected to accumulator.
The vertical rack lower end is equipped with quick core pulling pressure sensor at quick core pulling oil circuit board.
When die casting machine starts lock pin action, quick core pulling valve, which is powered, to be opened, the hydraulic oil in accumulator by oil pipe into
Enter core pulling oil cylinder and accelerate core pulling action, quickly core pulling valve dead electricity closing after core pulling is inserted in place, quick lock pin action is completed;
Later when die casting machine action operation is to when dnockout energy storage, quick core-pulling device carries out energy storage action, quick core pulling dress
Quick core pulling energy storage valve in setting, which is powered, to be opened, and hydraulic oil enters accumulator by oil pipe and carries out quick core pulling energy storage action, beats
After the completion of expecting energy storage, quick core pulling energy storage valve dead electricity is closed, and the first step action of quick core pulling energy storage is completed, and die casting machine fortune is waited for
It goes to cooling time;
When die casting machine was run to cooling time, quick core pulling energy storage valve, which is powered, to be opened, and hydraulic oil enters storage by oil pipe
Energy device, when quick core pulling energy storage pressure sensor detects that quick core pulling energy storage pressure reaches setting value, quick core pulling energy storage is dynamic
The second step of work is completed;
Then quick core pulling action is carried out, when die casting machine is run to core pulling action, quick core pulling valve, which is powered, to be opened, energy storage
Hydraulic oil in device enters core pulling oil cylinder and accelerates core pulling action, and after core pulling goes out in place, quick core pulling valve dead electricity is closed, and completes quick
Core pulling action;
When die casting machine is shut down, the energy storage off-load action of quick core-pulling device is carried out, quick core pulling energy storage unloading valve (8) is lost
Electricity, quick core pulling energy storage release ensure safety.
Advantageous effect:The present invention relates to a kind of die casting machine core-pulling device and core pulling method, pumping, lock pin are effectively shortened
Time significantly shortens the production cycle, improves the features such as product qualification rate.
Description of the drawings
Fig. 1 is the topology view of the present invention;
Fig. 2 is the flow chart that core pulling is carried out using the present invention.
Diagram:1, accumulator, 2, accumulator holder, 3, quick core pulling pressure sensor, 4, quick core pulling oil circuit board, 5, fast
Fast core pulling valve, 6, quick core pulling energy storage valve, 7, oil pipe, 8, quick core pulling energy storage unloading valve, 9, accumulator air valve, 10, vertical branch
Frame.
Specific implementation mode
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, people in the art
Member can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Range.
Embodiments of the present invention are related to a kind of die casting machine core-pulling device and core pulling method, as shown in Fig. 1-2, including
Accumulator holder 2, accumulator 1 and quick core pulling oil circuit board 4 are mounted side by side vertically on the front end face of the accumulator holder 2
There are two accumulator 1, two 1 upper ends of accumulator are connected with the vertical rack 10 between two, the vertical rack 10
Lower end is equipped with quick core pulling oil circuit board 4, and 4 front end face right part of quick core pulling oil circuit board is equipped with quick core pulling valve 5, left part installation
There are quick core pulling energy storage valve 6,1 lower end of accumulator to be mounted on accumulator air valve 9, the quick core pulling oil circuit board 4
The oil pipe 7 that right side is equipped with quick core pulling energy storage unloading valve 8 and is connected to accumulator 1.
10 lower end of vertical rack is equipped with quick core pulling pressure sensor 3 at quick core pulling oil circuit board 4.
When die casting machine starts lock pin action, quick core pulling valve 5, which is powered, to be opened, and the hydraulic oil in accumulator 1 passes through oil pipe 7
Accelerate core pulling action, quickly 5 dead electricity closing of core pulling valve after core pulling is inserted in place into core pulling oil cylinder, quick lock pin action is completed;
Later when die casting machine action operation is to when dnockout energy storage, quick core-pulling device carries out energy storage action, quick core pulling dress
Quick core pulling energy storage valve 6 in setting, which is powered, to be opened, and hydraulic oil carries out quick core pulling energy storage into accumulator 1 by oil pipe 7 and acts,
After the completion of dnockout energy storage, quick 6 dead electricity of core pulling energy storage valve is closed, and the first step action of quick core pulling energy storage is completed, and die casting is waited for
Machine was run to cooling time;
When die casting machine was run to cooling time, quick core pulling energy storage valve 6, which is powered, to be opened, and hydraulic oil is entered by oil pipe 7
Accumulator 1, when quick core pulling energy storage pressure sensor 3 detects that quick core pulling energy storage pressure reaches setting value, quick core pulling storage
The second step that can be acted is completed;
Then quick core pulling action is carried out, when die casting machine is run to core pulling action, quick core pulling valve 5, which is powered, to be opened, storage
Hydraulic oil in energy device 1 enters core pulling oil cylinder and accelerates core pulling action, and after core pulling goes out in place, quick 5 dead electricity of core pulling valve is closed, and is completed
Quick core pulling action;
When die casting machine is shut down, the energy storage off-load action of quick core-pulling device is carried out, quick core pulling energy storage unloading valve (8) is lost
Electricity, quick core pulling energy storage release ensure safety.
Embodiment
When carrying out production using the present apparatus, detailed process is as shown in Fig. 2, mold and die casting machine are in and beat
Open state, carry out die casting before preparation, complete prepare after, spray first to core pulling, after the completion, die casting machine into
Row lock pin acts, and by introducing the present apparatus, the quick core pulling valve 5 in the present apparatus, which is powered, to be opened, and the hydraulic oil in accumulator 1 passes through
Oil pipe 7 enters core pulling oil cylinder and accelerates core pulling action, and lock pin action is completed in quickly 5 dead electricity closing of core pulling valve after core pulling is inserted in place;
After completing lock pin action, die casting machine sends out mode-locked signal and carries out mode locking, and after completing mode locking, quick core-pulling device carries out
Energy storage acts, and energy storage action is divided into two steps, and the first step is:Quick core pulling energy storage valve 6, which is powered, to be opened, hydraulic oil by oil pipe 7 into
Enter accumulator 1 and carry out quick core pulling energy storage action, after the completion of dnockout energy storage, quick 6 dead electricity of core pulling energy storage valve is closed;
After the completion of the first step, start die casting machine first, die casting machine carries out injection, and carries out mold cooling process, works as die casting
When machine was run to cooling time, quick core-pulling device carries out second step energy storage action:Quick core pulling energy storage valve 6, which is powered, to be opened, liquid
Pressure oil enters accumulator 1 by oil pipe 7, when quick core pulling energy storage pressure sensor 3 detects that quick core pulling energy storage pressure reaches
Setting value is just calculated and completes energy storage action;
It is molded later, die sinking carries out core pulling action afterwards in place, and quick core pulling valve 5, which is powered, to be opened, the liquid in accumulator 1
Pressure oil enters core pulling oil cylinder and accelerates core pulling action, and after core pulling goes out in place, quick 5 dead electricity of core pulling valve is closed, and it is dynamic to complete quick core pulling
Make;
The energy storage off-load action of quick core-pulling device is finally carried out, when die casting machine is shut down, quick core pulling energy storage unloading valve 8 loses
Electricity, quick core pulling energy storage release ensure safety;
Then work is reorganized and outfit before preparing die casting again, forms cycle.
It is the specific experiment data of the present apparatus below:
Quick core-pulling device design and calculation method is as follows:
Core pulling oil cylinder total measurement (volume) calculates:
According to mould core pulling cylinder diameter D, stroke L, core pulling oil cylinder quantity N
Calculate core pulling oil cylinder total measurement (volume):Q=π/4*D2*L*N
Quick core pulling nitrogen cylinder volume calculations:
The blowing pressure P0, maximum working pressure (MWP) P1, minimum operating pressures that P2
Nitrogen cylinder provides oil mass Q, quick core pulling nitrogen cylinder volume when pulling and pushing core action:
It quickly takes out, the lock pin time calculates:
Core pulling oil cylinder speed V=QCore pulling valve/(π/4*D2)
It takes out, lock pin actuation time T1=L/V
Quick core-pulling device energy storage time calculates:
Energy storage time T2=Q/QPump
Core pulling elder generation insertions function;Mold spraying, blow need the long period, core pulling intercalation model be mode locking before be inserted into situation
Under, core pulling action can need not wait for mode-locked signal, first can act to enter mould core pulling in place when mold is sprayed or is blown.Subtract
Lack the time for waiting for mode-locked signal, shortened the production cycle of die casting, improves production efficiency.
Automatic core-pulling spraying, blowing function, are atomized the sprayable mould core pulling sliding block of releasing agent, when selection core pulling spraying function
When;Start in the die casting production cycle and (mold condition in place), core pulling piston rod is sequentially inserted by setting pushes corresponding core pulling to slide
Block;After core-pulling slide block enters in place, spraying robot ' declines to the timing of mould core pulling sliding block, fixed point spraying atomization releasing agent, spraying
Spraying robot ' timing, fixed point blow to mold after the completion, rise after drying up mold, and core pulling piston rod is pushed away by the extraction of setting sequence
Dynamic corresponding mould core-pulling slide block resets;Product sticking to mould is effectively reduced, the qualification rate of die casting is improved.
The free set-up function of core pulling sequence can freely set core pulling action sequence;Change to need to adjust in die-casting process and take out
When core sequence, core pulling piping connection can not be changed, core pulling adjustment is more convenient, flexible.Save the die change time;To mold
It is compatible strong.
Novel core pulling method saves time summary sheet when DCC2500 die casting machines production cylinder body
DCC2500 die casting machines produce novel core pulling method product qualification rate summary sheet when cylinder body
It is tested when producing cylinder body through DCC2500 die casting machines, total production cycle of die casting machine original core pulling method is 135S, is used
Total production cycle is 120S, cocondensation short production cycle 15S after the novel core pulling method of die casting machine;Die casting qualification rate is improved by 85%
To 89%.
Claims (3)
1. a kind of die casting machine core-pulling device, including accumulator holder (2), accumulator (1) and quick core pulling oil circuit board (4), special
Sign is:Accumulator (1) there are two being mounted side by side vertically on the front end face of the accumulator holder (2), two accumulators (1)
Upper end is connected with the vertical rack (10) between two, and the vertical rack (10) lower end is equipped with quick core pulling oil circuit
Plate (4), quick core pulling oil circuit board (4) front end face right part is equipped with quick core pulling valve (5), left part is equipped with quick core pulling energy storage valve
(6), the accumulator (1) lower end is mounted on accumulator air valve (9), is installed on the right side of the quick core pulling oil circuit board (4)
The oil pipe (7) for having quick core pulling energy storage unloading valve (8) and being connected to accumulator (1).
2. a kind of die casting machine core-pulling device according to claim 1, it is characterised in that:Described vertical rack (10) lower end
Quick core pulling pressure sensor (3) is installed at quick core pulling oil circuit board (4).
3. a kind of core pulling method using a kind of die casting machine core-pulling device described in present claims 2 is as follows:
(a), when die casting machine starts lock pin action, quick core pulling valve (5), which is powered, opens, and the hydraulic oil in accumulator (1) passes through
Oil pipe (7) enters core pulling oil cylinder and accelerates core pulling action, quickly core pulling valve (5) dead electricity closing after core pulling is inserted in place, quick lock pin
Action is completed;
(b), later when die casting machine action operation is to when dnockout energy storage, quick core-pulling device carries out energy storage action, quick core pulling dress
Quick core pulling energy storage valve (6) in setting, which is powered, opens, and hydraulic oil enters accumulator (1) by oil pipe (7) and carries out quick core pulling storage
It can act, after the completion of dnockout energy storage, quick core pulling energy storage valve (6) dead electricity is closed, and the first step action of quick core pulling energy storage is completed,
Die casting machine is waited for run to cooling time;
(c), when die casting machine was run to cooling time, quick core pulling energy storage valve (6), which is powered, opens, and hydraulic oil passes through oil pipe (7)
Into accumulator (1), when quick core pulling energy storage pressure sensor (3) detects that quick core pulling energy storage pressure reaches setting value, soon
The second step of fast core pulling energy storage action is completed;
(d) and then quick core pulling action is carried out, when die casting machine is run to core pulling action, quick core pulling valve (5), which is powered, opens,
Hydraulic oil in accumulator (1) enters core pulling oil cylinder and accelerates core pulling action, and after core pulling goes out in place, quick core pulling valve (5) dead electricity is closed
It closes, completes quick core pulling action;
(e), when die casting machine is shut down, the energy storage off-load action of quick core-pulling device is carried out, quick core pulling energy storage unloading valve (8) is lost
Electricity, quick core pulling energy storage release ensure safety.
Priority Applications (1)
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CN201810333016.2A CN108372283B (en) | 2018-04-13 | 2018-04-13 | Core pulling method of core pulling device of die casting machine |
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CN201810333016.2A CN108372283B (en) | 2018-04-13 | 2018-04-13 | Core pulling method of core pulling device of die casting machine |
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CN108372283A true CN108372283A (en) | 2018-08-07 |
CN108372283B CN108372283B (en) | 2024-04-19 |
Family
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CN201810333016.2A Active CN108372283B (en) | 2018-04-13 | 2018-04-13 | Core pulling method of core pulling device of die casting machine |
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