CN108580833A - A kind of control device and control method of die casting high vacuum valve - Google Patents
A kind of control device and control method of die casting high vacuum valve Download PDFInfo
- Publication number
- CN108580833A CN108580833A CN201810287498.2A CN201810287498A CN108580833A CN 108580833 A CN108580833 A CN 108580833A CN 201810287498 A CN201810287498 A CN 201810287498A CN 108580833 A CN108580833 A CN 108580833A
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- valve
- vacuum
- vacuum valve
- relay
- mouthfuls
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Classifications
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- 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
- B22D17/14—Machines with evacuated die cavity
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of control devices of die casting high vacuum valve, high vacuum valve is installed on the cover half including dynamic model and cover half, the piston of the high pressure vacuum valve is communicated with the cavity of cover half, it is connected with hydraulic cylinder on the high pressure vacuum valve, it is connected with three position four-way electromagnetic valve on the oil circuit of the hydraulic cylinder, it is connected with two-position two-way solenoid valve and check valve on the oil inlet pipe of the three position four-way electromagnetic valve, bellows accumulator is connected on the two-position two-way solenoid valve.The present invention has the advantages of simple in structure, easy to use, folding is rapid, controls accurately, improves production efficiency.
Description
Technical field
The invention discloses a kind of mould water-transportation accurate flow control temperature device and its control methods.
Background technology
During Die Casting, mold cavity is carried out height to vacuumize being to improve product quality, reduces the weight of rejection rate
Link is wanted, however it is very of short duration in the process time entirely vacuumized, then for the time control of vacuum valve either on or off, and
The rate request of either on or off is just very stringent, accurately action control, and the speed for opening and closing speed directly affects mold pumping very
The quality of empty effect also affects the quality of product indirectly.
In addition if in of short duration vacuum, vacuum valve cannot accurately realize that control requires that also result in can not
Vacuumize, aluminium material block vacuum valve the problem of, increase maintenance time, reduce production efficiency and production quality.For this
Problem completes the control to high vacuum valve opening and closing movement using die casting machine PLC actuating signal points, then accumulator valve is coordinated to realize Gao Zhen
The quick folding of empty valve is finally completed the accurate quick control to high vacuum valve.
Invention content
The technical problem to be solved is that providing, one kind is simple in structure, easy to use, folding is rapid, control first by the present invention
Accurately, production efficiency is improved, ensures the control device and control method of the die casting high vacuum valve of product quality.
The purpose of the present invention is achieved through the following technical solutions：A kind of control device of die casting high vacuum valve, packet
It including dynamic model and cover half and high vacuum valve is installed on the cover half, the piston of the high pressure vacuum valve is communicated with the cavity of cover half,
It is connected with hydraulic cylinder on the high pressure vacuum valve, three position four-way electromagnetic valve is connected on the oil circuit of the hydraulic cylinder, in institute
It states and is connected with two-position two-way solenoid valve and check valve on the oil inlet pipe of three position four-way electromagnetic valve, on the two-position two-way solenoid valve
It is connected with bellows accumulator.
A kind of control method of die casting high vacuum valve, includes the following steps：PLC controller is equipped on die casting machine,
And the hydraulic cylinder is connected with by relay, by the high vacuum valve on cover half, wherein the check valve is used to control
Liquefaction liquid can only move in one direction, the two-position two-way solenoid valve make coil obtain it is electric after, two-position two-way solenoid valve valve cup
It opens, fluid circulation, after coil blackout, main valve valve cup is closed, and fluid does not circulate, and the three position four-way electromagnetic valve keeps spool real
Existing left position, middle position, the evolution of right position three；When three position four-way electromagnetic valve spool is in middle position, each oil circuit mouth is not communicated with, when
Oil circuit can be gone out by P mouthfuls into A mouthfuls when three position four-way electromagnetic valve spool is in left position, while B mouthfuls communicate with T mouthfuls, when 3-position 4-way electricity
Oil circuit can be gone out by P mouthfuls into B mouthfuls when magnet valve spool is in right position, while A mouthfuls communicate with T mouthfuls；When die casting machine molds in place, PLC
Controller, which sends out a rising edge pulse signal and then controls relay KA1, obtains electric self-locking, and opened point connection makes the bellows store
Energy device valve seat coil obtains electric, the beginning accumulation of energy of bladder type hydropneumatic accumulator 8；Since injection stroke is a fixed value, injection encoder is utilized
The injection stroke for penetrating bar is divided into the section can arbitrary setting value, respectively vacuum startup position 1,2,3 and vacuum stop position
It sets, is programmed using PLC controller inner high speed counting module, start position setting value when encoder numerical value is equal to setting vacuum
When, a 24V signal is exported using the extra I/O points of PLC controller, control relay KA2 obtains electric self-locking, at this moment KA2 opened points
It is closed, the valve seat coil of control oil circuit B obtains electric, B oil circuits opening, while bladder type hydropneumatic accumulator realizes the supercharging to B oil circuits, to fast
Speed opens the high pressure vacuum valve；When encoder numerical value, which is equal to setting vacuum, starts the setting value of position, PLC controller is herein
Send out a 24V signal, control relay KA3 obtains electric self-locking, and KA3 opened points are closed, the valve seat coil of control oil circuit A obtain it is electric,
Open B oil circuits, at the same KA3's and the concatenated normally closed point of KA1, KA2 disconnect, while resetting KA1, KA2 realizes the fast of high vacuum valve
Speed is closed, and additionally by vacuum machine inner vacuum end signal is connected, that realizes vacuum machine vacuumizes stopping；When die casting machine molds
When in place, control relay KA4 obtains electric then control accumulator accumulation of energy, and letter is consistent in place with molding for principle, when PLC controller is sent out
When going out ejection in place, control relay KA5 obtains electric opening vacuum valve, while vacuum machine internal time relay KT being made to obtain electric opening
Air source solenoid valve starts timing and blows, and blow end time relay reset relay KA5, and relay KA6 obtains electric, completion institute
The closing motion of high vacuum valve is stated, while resetting KA4, accumulator stops accumulation of energy, waits for subsequent cycle.
Compared with the prior art, the present invention has the following advantages：
Rapidly, control is accurate for simple in structure, easy to use, folding, improves production efficiency, utilizes die casting machine PLC actuating signal points
The control to high vacuum valve opening and closing movement is completed, then the quick folding for coordinating accumulator valve to realize high vacuum valve, realized to Gao Zhen
The accurate quick control of empty valve.
Description of the drawings：
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the control flow chart of high vacuum valve；
Reference numeral：1- cover half, 2- cover half, 3- pistons, 4- high vacuum valves, 5- hydraulic cylinders, 6- check valves, 7- two-position three-way electromagnetics
Valve, 8- bellows accumulator, 9- 3-position-3-way solenoid valves.
Specific implementation mode：
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, which only uses
In explaining the present invention, it is not intended to limit the scope of the present invention..
As Fig. 1-2 shows a kind of specific implementation mode of the control device of die casting high vacuum valve：Including 1 He of dynamic model
Cover half 2 is equipped with high vacuum valve 4 on the cover half 1, and the piston 3 of the high pressure vacuum valve 4 is communicated with the cavity of cover half 1,
It is connected with hydraulic cylinder 5 on the high pressure vacuum valve 4, three position four-way electromagnetic valve 9 is connected on the oil circuit of the hydraulic cylinder 5,
Two-position two-way solenoid valve 7 and check valve 6 are connected on the oil inlet pipe of the three position four-way electromagnetic valve 9, in bi-bit bi-pass electricity
Bellows accumulator 8 is connected on magnet valve 7.
A kind of control method of die casting high vacuum valve, includes the following steps：PLC controller is equipped on die casting machine,
And the hydraulic cylinder 5 is connected with by relay, by the high vacuum valve 4 on cover half 2, wherein the use of the check valve 6
In control fluid can only move in one direction, the two-position two-way solenoid valve make coil obtain it is electric after, two-position two-way solenoid valve
Valve cup is opened, fluid circulation, and after coil blackout, main valve valve cup is closed, and fluid does not circulate, and the three position four-way electromagnetic valve makes spool
Left position, middle position, the evolution of right position three can be achieved；Each oil circuit mouth not phase when valve three position four-way electromagnetic valve spool is in middle position
Logical, when three position four-way electromagnetic valve spool is in left position, oil circuit can be gone out by P mouthfuls into A mouthfuls, while B mouthfuls communicate with T mouthfuls, when three four
Oil circuit can be gone out by P mouthfuls into B mouthfuls when three-way electromagnetic valve spool is in right position, while A mouthfuls communicate with T mouthfuls；When die casting machine molds in place,
PLC controller, which sends out a rising edge pulse signal and then controls relay KA1, obtains electric self-locking, and opened point connection makes the bellows
8 valve seat coil of accumulator obtains electric, the beginning accumulation of energy of bladder type hydropneumatic accumulator 8；Since injection stroke is a fixed value, encoded using injection
The injection stroke for penetrating bar is divided into the section by device can arbitrary setting value, respectively vacuum startup position 1,2,3 and vacuum stopping
Position is programmed using PLC controller inner high speed counting module, starts the setting of position 1 when encoder numerical value is equal to setting vacuum
When value, a 24V signal is exported using the extra I/O points of PLC controller, control relay KA2 obtains electric self-locking, and at this moment KA2 is normally opened
Point is closed, and the valve seat coil of control oil circuit B obtains electric, B oil circuits opening, while bladder type hydropneumatic accumulator 8 realizes the supercharging to B oil circuits, from
And quickly open the high pressure vacuum valve 4；When encoder numerical value, which is equal to setting vacuum, starts the setting value of position 2, PLC controls
Device sends out a 24V signal herein, and control relay KA3 obtains electric self-locking, and KA3 opened points are closed, the valve seat coil of control oil circuit A
It is electric, open B oil circuits, at the same KA3's and the concatenated normally closed point of KA1, KA2 disconnect, while resetting KA1, KA2 realizes high vacuum valve
4 quick closedown, additionally by vacuum machine inner vacuum end signal is connected, that realizes vacuum machine vacuumizes stopping；Work as die casting
When machine is molded in place, control relay KA4 obtains electric then control accumulator accumulation of energy, and letter is consistent in place with molding for principle, when PLC is controlled
When device processed sends out ejection in place, control relay KA5 obtains electric opening vacuum valve, while vacuum machine internal time relay KT being made to obtain
Electricity open air source solenoid valve, start timing blow, blow end time relay reset relay KA5, relay KA6 obtain it is electric,
The closing motion of the high vacuum valve 4 is completed, while resetting KA4, accumulator stops accumulation of energy, waits for subsequent cycle.
As shown in Fig. 2, when die casting machine molds in place, PLC sends out a molding and arrives the control flow of specific high vacuum valve
The rising edge pulse signal of position gives accumulator energy storage, and energy storage in advance can preferably complete the opening to high vacuum valve, penetrate bar and arrive
When injection setting position 1, high vacuum valve opens vacuum machine vacuumizing start simultaneously, when penetrating bar to injection setting position 2, high vacuum
Valve closes vacuum machine simultaneously and vacuumizes stoppings, and die casting machine die sinking starts, and accumulator energy storage stops, then mold signal in place and
Ejection in place with meet when signal it is lower in the case of, high vacuum valve opens vacuum machine startup and blows to pipeline, prevents aluminium powder from existing
It is accumulated in pipeline；Vacuum machine, which to pipeline blow, after 10S stops high vacuum valve closing simultaneously, completes a control action, and
Wait for subsequent cycle.
The configuration of the present invention is simple, easy to use, folding is rapid, and control is accurate, improves production efficiency, utilizes die casting machine PLC
Actuating signal point completes the control to high vacuum valve opening and closing movement, then the quick folding for coordinating accumulator valve to realize high vacuum valve, real
The accurate quick control to high vacuum valve is showed.
The another statement of applicant, the present invention illustrate the implementation method and apparatus structure of the present invention by above-described embodiment,
But the invention is not limited in the above embodiments, that is, do not mean that the present invention has to rely on the above method and structure could be real
It applies.Person of ordinary skill in the field is it will be clearly understood that any improvement in the present invention, to implementation method selected by the present invention etc.
Effect is replaced and the addition of step, the selection etc. of concrete mode, all falls within protection scope of the present invention and scope of disclosure.
Present invention is not limited to the embodiments described above, all to realize the present invention using structure similar with the present invention and its method
All modes of purpose, within protection scope of the present invention.
Claims (2)
1. a kind of control device of die casting high vacuum valve, including dynamic model（1）And cover half（2）It is characterized in that：Described fixed
Mould（1）On high vacuum valve is installed（4）, the high pressure vacuum valve（4）Piston（3）With cover half（1）Cavity communicate, described
High pressure vacuum valve（4）On be connected with hydraulic cylinder（5）, in the hydraulic cylinder（5）Oil circuit on be connected with three position four-way electromagnetic valve
（9）, in the three position four-way electromagnetic valve（9）Oil inlet pipe on be connected with two-position two-way solenoid valve（7）And check valve（6）, institute
State two-position two-way solenoid valve（7）On be connected with bellows accumulator（8）.
2. a kind of control method of die casting high vacuum valve, it is characterised in that：Include the following steps：It is equipped on die casting machine
PLC controller, and the hydraulic cylinder is connected with by relay（5）, by the high vacuum valve（4）Mounted in cover half（2）On, wherein
The check valve（6）Can only move in one direction for controlling fluid, the two-position two-way solenoid valve（7）So that coil is obtained
After electricity, the two-position two-way solenoid valve（7）Valve cup is opened, fluid circulation, and after coil blackout, main valve valve cup is closed, and fluid does not flow
It is logical, the three position four-way electromagnetic valve（9）Make spool that can realize left position, middle position, the evolution of right position three；When the 3-position 4-way
Solenoid valve（9）Each oil circuit mouth is not communicated with when in middle position, when the three position four-way electromagnetic valve（9）Oil circuit can be by P when in left position
Mouth goes out into A mouthfuls, while B mouthfuls communicate with T mouthfuls, when the three position four-way electromagnetic valve（9）Oil circuit can be by P mouthfuls into B mouthfuls when in right position
Go out, while A mouthfuls communicate with T mouthfuls；When die casting machine molds in place, PLC controller sends out a rising edge pulse signal and then controls
Relay KA1 processed obtains electric self-locking, and opened point connection makes the bladder type hydropneumatic accumulator（8）Valve seat coil obtains electric, bladder type hydropneumatic accumulator（8）It opens
Beginning accumulation of energy；Since injection stroke is a fixed value, being divided into the injection stroke for penetrating bar using injection encoder can in the section
Arbitrary setting value, respectively vacuum start position 1,2,3 and vacuum stop position, utilize PLC controller inner high speed count module
Block programs, and when encoder numerical value, which is equal to setting vacuum, starts 1 setting value of position, one is exported using the extra I/O points of PLC controller
A 24V signals, control relay KA2 obtain electric self-locking, and at this moment KA2 opened points are closed, and the valve seat coil of control oil circuit B obtains electric, B oil
Road is opened, while bladder type hydropneumatic accumulator（8）The supercharging to B oil circuits is realized, to quickly open the high pressure vacuum valve（4）；Work as volume
When code device numerical value is equal to the setting value of setting vacuum startup position 2, PLC controller sends out a 24V signal herein, controls relay
Device KA3 obtains electric self-locking, and KA3 opened points are closed, and the valve seat coil of control oil circuit A obtains electric, opens B oil circuits, while KA3's and KA1,
The concatenated normally closed points of KA2 disconnect, while resetting KA1, and KA2 realizes high vacuum valve（4）Quick closedown, additionally by connect vacuum
Machine inner vacuum end signal, that realizes vacuum machine vacuumizes stopping；When die casting machine molds in place, control relay KA4 is obtained
Electricity then controls accumulator accumulation of energy, and letter is consistent in place with molding for principle, when PLC controller sends out ejection in place, controls relay
Device KA5 obtains electric opening vacuum valve, while vacuum machine internal time relay KT being made to obtain electric opening air source solenoid valve, starts timing and blows
Gas, blow end time relay reset relay KA5, and relay KA6 obtains electric, completes the high vacuum valve（4）Closing it is dynamic
Make, while resetting KA4, accumulator stops accumulation of energy, waits for subsequent cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287498.2A CN108580833A (en) | 2018-04-03 | 2018-04-03 | A kind of control device and control method of die casting high vacuum valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287498.2A CN108580833A (en) | 2018-04-03 | 2018-04-03 | A kind of control device and control method of die casting high vacuum valve |
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| Publication Number | Publication Date |
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| CN108580833A true CN108580833A (en) | 2018-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810287498.2A Pending CN108580833A (en) | 2018-04-03 | 2018-04-03 | A kind of control device and control method of die casting high vacuum valve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940151A (en) * | 2019-04-04 | 2019-06-28 | 广东鸿图科技股份有限公司 | A kind of die casting multichannel high vacuum valve motion control device and control method |
| TWI695948B (en) * | 2019-03-28 | 2020-06-11 | 台灣氣立股份有限公司 | Large capacity vacuum control device |
| CN112059139A (en) * | 2020-09-10 | 2020-12-11 | 广东鸿图南通压铸有限公司 | Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die |
| CN112108624A (en) * | 2020-08-25 | 2020-12-22 | 广东鸿图科技股份有限公司 | Vacuum casting system and using method |
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| CN204061363U (en) * | 2014-08-27 | 2014-12-31 | 山东胜岳精密机械有限公司 | Hydraulic type injection machine fast and stable injection hydraulic pressure performs loop |
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Patent Citations (4)
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| JP2010201436A (en) * | 2009-02-27 | 2010-09-16 | Ube Machinery Corporation Ltd | Die casting machine and die casting method |
| CN201669568U (en) * | 2010-05-19 | 2010-12-15 | 西安邮电学院 | Hydraulic energy-accumulation pressure maintaining system for fixture |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI695948B (en) * | 2019-03-28 | 2020-06-11 | 台灣氣立股份有限公司 | Large capacity vacuum control device |
| CN109940151A (en) * | 2019-04-04 | 2019-06-28 | 广东鸿图科技股份有限公司 | A kind of die casting multichannel high vacuum valve motion control device and control method |
| CN109940151B (en) * | 2019-04-04 | 2021-08-31 | 广东鸿图科技股份有限公司 | Die-casting die multi-path high-vacuum valve action control device and control method |
| CN112108624A (en) * | 2020-08-25 | 2020-12-22 | 广东鸿图科技股份有限公司 | Vacuum casting system and using method |
| CN112108624B (en) * | 2020-08-25 | 2021-11-26 | 广东鸿图科技股份有限公司 | Vacuum casting system and using method |
| CN112059139A (en) * | 2020-09-10 | 2020-12-11 | 广东鸿图南通压铸有限公司 | Intelligent monitoring method for hydraulic high-vacuum valve of die casting machine die |
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| PB01 | Publication | ||
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| TA01 | Transfer of patent application right |
Effective date of registration: 20181210 Address after: 226000 Xingyuan West Road 777, Nantong High-tech Industrial Development Zone, Jiangsu Province Applicant after: Guangdong Hongtu (Nantong) Die-Casting Co., Ltd. Applicant after: Guangdong Hongtu Technology (Holdings) Co., Ltd. Address before: 226000 Xingyuan Road, Tongzhou Economic Development Zone, Nantong City, Jiangsu Province Applicant before: Guangdong Hongtu (Nantong) Die-Casting Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180928 |
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| RJ01 | Rejection of invention patent application after publication |