CN103381478B - Injection system of die casting machine - Google Patents
Injection system of die casting machine Download PDFInfo
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- CN103381478B CN103381478B CN201310260238.3A CN201310260238A CN103381478B CN 103381478 B CN103381478 B CN 103381478B CN 201310260238 A CN201310260238 A CN 201310260238A CN 103381478 B CN103381478 B CN 103381478B
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- 238000002347 injection Methods 0.000 title claims abstract description 154
- 239000007924 injection Substances 0.000 title claims abstract description 154
- 238000004512 die casting Methods 0.000 title claims abstract description 34
- 239000003921 oil Substances 0.000 claims description 125
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 239000010727 cylinder oil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009776 industrial production Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005058 metal casting Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
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Abstract
Description
技术领域technical field
本发明涉及一种插线装置，具体涉及一种压铸机压射系统。The invention relates to a wire insertion device, in particular to an injection system of a die-casting machine.
背景技术Background technique
压铸机用于将熔融金属液在压力作用下压射到模具中冷却成型，开模后得到固体金属铸件的一系列工业铸造机械。随着科学技术和工业生产的进步，尤其是随着汽车、摩托车以及家用电器等工业的发展，压铸机在工业生产中所起的作用也越来越大。Die casting machine is a series of industrial casting machinery used to inject molten metal into a mold for cooling and forming under pressure, and obtain solid metal castings after mold opening. With the advancement of science and technology and industrial production, especially with the development of industries such as automobiles, motorcycles and household appliances, die-casting machines are playing an increasingly important role in industrial production.
现有的压铸机的压射单元主要由压射液压缸组件、压射室冲头组件、压射蓄能器组件和增压蓄能器组件组成。压铸机工作时，金属溶液经过压射程序压入压铸模具后需启动增压程序对模具内金属固体进行增压并保持一定的时间。The injection unit of the existing die-casting machine is mainly composed of an injection hydraulic cylinder assembly, an injection chamber punch assembly, an injection accumulator assembly and a pressurized accumulator assembly. When the die-casting machine is working, after the molten metal is pressed into the die-casting mold through the injection program, the pressurization program needs to be started to pressurize the metal solid in the mold and keep it for a certain period of time.
然而，传统压射机构油路通道曲折，液压系统回路复杂、不完善，存在严重的通油不畅与压力流量损失现象，因此增压建压时间长，增压响应慢，不利于压铸件压铸质量的控制和提高，严重制约了工业生产。However, the oil channel of the traditional injection mechanism is tortuous, the hydraulic system circuit is complex and imperfect, and there are serious oil flow problems and pressure flow loss phenomena. Therefore, the pressurization build-up time is long and the pressurization response is slow, which is not conducive to the die-casting of die-casting parts. The control and improvement of quality seriously restricts industrial production.
发明内容Contents of the invention
基于此，有必要针对现有技术中的不足，提供一种压铸机压射系统。Based on this, it is necessary to provide an injection system for a die-casting machine to address the deficiencies in the prior art.
本发明是通过以下方式实现的：一种压铸机压射系统，包括压射油路本体、压射蓄能器、增压蓄能器、增压油缸、增压活塞、压射油缸、及压射活塞杆，所述压射蓄能器和增压蓄能器装设于压射油路本体上，所述压射活塞杆装设于压射油缸内，该压射油缸的后端与压射油路本体前端相连接，所述增压油缸设置压射油路本体内的前端，所述增压活塞设置于增压油缸内，还包括油路控制系统，该油路控制系统中，包括慢压射系统、快压蓄能器控制系统、增压蓄能器控制系统及快排油系统，所述慢压射系统将系统压力油经压射油路注入压射油缸内，快压蓄能器控制系统和增压蓄能器控制系统分别控制压射蓄能器和增压蓄能器工作，所述增压活塞内设有差压式单向阀，所述压射油路本体上设有主油道，快压时，所述主油道的液压油从差压式单向阀流入到压射油缸内，使压射蓄能器作用于增压油缸内油路压射方向的后方；所述增压蓄能器作用于增压油缸内油路压射方向压力油腔的前方，对压力油腔内的油压进行压缩增压，快排油系统对增压油缸里的油进行快速排油处理。The present invention is achieved in the following manner: an injection system of a die-casting machine, comprising an injection oil circuit body, an injection accumulator, a pressurized accumulator, a pressurized cylinder, a pressurized piston, an injection cylinder, and a pressurized The injection piston rod, the injection accumulator and the pressurized accumulator are installed on the injection oil circuit body, the injection piston rod is installed in the injection cylinder, and the rear end of the injection cylinder is connected to the injection cylinder. The front ends of the injection oil circuit body are connected, the booster oil cylinder is set at the front end of the injection oil line body, the booster piston is arranged in the booster oil cylinder, and also includes an oil circuit control system, the oil circuit control system includes Slow injection system, fast pressure accumulator control system, pressurized accumulator control system and fast oil discharge system, the slow injection system injects the system pressure oil into the injection cylinder through the injection oil circuit The accumulator control system and the boost accumulator control system respectively control the injection accumulator and the boost accumulator to work. The boost piston is provided with a differential pressure check valve, and the injection oil circuit body is There is a main oil passage, and the hydraulic oil in the main oil passage flows from the differential pressure check valve into the injection cylinder during rapid pressure, so that the injection accumulator acts on the injection direction of the oil circuit in the booster cylinder. Rear; the booster accumulator acts on the front of the pressure oil chamber in the injection direction of the oil circuit in the booster oil cylinder, compresses and boosts the oil pressure in the pressure oil chamber, and the quick oil discharge system Perform a quick oil drain.
进一步地，所述慢压射系统通过一换向阀V10连接在增压油缸上，其增压油压受一控制阀J2控制。Further, the slow injection system is connected to the pressurized oil cylinder through a reversing valve V10, and its pressurized oil pressure is controlled by a control valve J2.
进一步地，所述快压蓄能器控制系统包括插装阀V26和插装阀V27，所述插装阀V26的输入和输出端分别连接在压射蓄能器和增压油缸上，所述插装阀V26的控制端连接有一换向阀V11，以控制该插装阀V26工作，所述插装阀V27的输入和输出端分别连接在压射蓄能器和增压油缸上，所述插装阀V27的控制端连接有一换向阀V12。Further, the fast pressure accumulator control system includes a cartridge valve V26 and a cartridge valve V27, the input and output ends of the cartridge valve V26 are respectively connected to the injection accumulator and the booster cylinder, the The control end of the cartridge valve V26 is connected with a reversing valve V11 to control the operation of the cartridge valve V26. The input and output ends of the cartridge valve V27 are respectively connected to the injection accumulator and the booster cylinder. The control end of the cartridge valve V27 is connected with a reversing valve V12.
进一步地，所述增压蓄能器控制系统包括插装阀V29和换向阀V14，插装阀V29的输入和输出端分别连接在增压储能器和增压油缸上，插装阀V29的控制端由换向阀V14控制。Further, the pressurized accumulator control system includes a cartridge valve V29 and a reversing valve V14, the input and output ends of the cartridge valve V29 are respectively connected to the pressurized accumulator and the pressurized oil cylinder, and the cartridge valve V29 The control end is controlled by the reversing valve V14.
进一步地，所述快排油系统包括一插装阀V23和换向阀V17，插装阀V23的输入和输出端分别连接在增压油缸、压射油缸和排油装置上，换向阀V17两端分别连接在插装阀V29的控制端和排油装置上。Further, the fast oil discharge system includes a cartridge valve V23 and a reversing valve V17, the input and output ends of the cartridge valve V23 are respectively connected to the booster cylinder, the injection cylinder and the oil discharge device, and the reversing valve V17 The two ends are respectively connected to the control end of the cartridge valve V29 and the oil discharge device.
综上所述，本发明压铸机压射系统通过压射蓄能器直接作用于油路压射方向的后方，增压蓄能器作用于油路压射方向压力油腔的前方，增压蓄能器前置，压射蓄能器后置，快压蓄能器控制系统和增压蓄能器控制系统分别控制压射蓄能器和增压蓄能器工作，实现整体结构合理，油路块紧凑；液压系统回路简洁、完善，大大缩小和减小传统油路通道曲折，通油不畅与压力流量损失现象，充分发挥了效能；压射性能得到大的提高。In summary, the injection system of the die-casting machine of the present invention directly acts on the rear of the injection direction of the oil circuit through the injection accumulator, and the booster accumulator acts on the front of the pressure oil cavity in the injection direction of the oil circuit. The accumulator is at the front, the injection accumulator is at the rear, the fast pressure accumulator control system and the boost accumulator control system respectively control the work of the injection accumulator and the boost accumulator, so that the overall structure is reasonable and the oil circuit The block is compact; the circuit of the hydraulic system is simple and perfect, which greatly reduces and reduces the twists and turns of the traditional oil passage, the phenomenon of poor oil flow and pressure flow loss, and fully exerts the efficiency; the injection performance is greatly improved.
附图说明Description of drawings
图1为本发明压铸机压射系统的连接示意图。Fig. 1 is a schematic diagram of the connection of the injection system of the die casting machine of the present invention.
图2为本发明压铸机压射系统的油路原理图。Fig. 2 is a schematic diagram of the oil circuit of the injection system of the die casting machine of the present invention.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本发明，并不用于限定本发明。In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
如图1所示，本实施例提供一种压铸机压射系统，用于挤压熔融体液体，使之形成高压液体压射到模具中冷却成型。该压铸机压射系统包括压射油路本体10、压射蓄能器20、增压蓄能器30、增压油缸40、增压活塞50、压射油缸60、及压射活塞杆70。As shown in FIG. 1 , this embodiment provides an injection system of a die-casting machine, which is used to extrude molten liquid to form a high-pressure liquid that is injected into a mold for cooling and forming. The injection system of the die casting machine includes an injection oil circuit body 10 , an injection accumulator 20 , a booster accumulator 30 , a booster cylinder 40 , a booster piston 50 , an injection cylinder 60 , and an injection piston rod 70 .
所述压射蓄能器20和增压蓄能器30装设于压射油路本体10上，所述压射蓄能器20作用于油路压射方向的后方，所述增压蓄能器30作用于油路压射方向的前方，即增压蓄能器前置30，压射蓄能器20后置。所述压射油路本体10上设有主油道11、压射油道(图未示)及增压油道(图未示)。所述压射活塞杆70装设于压射油缸60内，该压射油缸60的后端与压射油路本体10前端相连接，所述增压油缸40设置压射油路本体10内的前端，所述增压活塞50设置于增压油缸40内，该增压活塞50内设有差压式单向阀51，所述主油道11的液压油从差压式单向阀51流入到增压油缸40内。The injection accumulator 20 and the booster accumulator 30 are installed on the injection oil circuit body 10, the injection accumulator 20 acts on the rear of the injection direction of the oil circuit, and the booster accumulator The device 30 acts on the front of the injection direction of the oil circuit, that is, the booster accumulator 30 is in front, and the injection accumulator 20 is in the rear. The injection oil passage body 10 is provided with a main oil passage 11 , an injection oil passage (not shown in the figure) and a pressurized oil passage (not shown in the figure). The injection piston rod 70 is installed in the injection cylinder 60, the rear end of the injection cylinder 60 is connected to the front end of the injection oil circuit body 10, and the booster cylinder 40 is set in the injection oil circuit body 10 At the front end, the booster piston 50 is set in the booster cylinder 40, and the booster piston 50 is provided with a differential pressure check valve 51, and the hydraulic oil in the main oil passage 11 flows in from the differential pressure check valve 51. Into the pressurized oil cylinder 40.
所述压射蓄能器20连接于压射油道上，该压射油道上设有电磁阀(图未示)，通过控制电磁阀的开闭，从而控制压射油道与主油道11的连通或相互封闭，所述增压蓄能器30与增压油道连接，所述增压油道上设有控制阀，通过控制控制阀的开闭，使增压油道与增压油缸40内部导通或封闭。The injection accumulator 20 is connected to the injection oil passage, and the injection oil passage is provided with a solenoid valve (not shown in the figure). By controlling the opening and closing of the solenoid valve, the connection between the injection oil passage and the main oil passage 11 is controlled. connected or mutually closed, the pressurized accumulator 30 is connected with the pressurized oil passage, and a control valve is provided on the pressurized oil passage. By controlling the opening and closing of the control valve, the pressurized oil passage and the inside of the pressurized cylinder 40 On or off.
本发明压铸机压射系统的集成压射装置在冷式压铸机运行时，当冷式压铸机压铸模具合模锁固后，压射油道的控制阀打开，压射蓄能器20的向压射油道施放压力，压力油经压射油道和差压式单向阀51，进入增压油缸40的前侧，推动压射油缸60中的压射活塞杆70向前移动，锤头将溶液通过流道注满压铸机压铸模具中，在注满压铸机压铸模具的溶液凝固的过程中，压射油道的控制阀关闭，同时增压油道的控制阀打开，增压蓄能器30向增压油道施放压力，具有高压的压力油经增压油道传递到增压油缸的前侧，由于增压活塞50内设有差压式单向阀51，油不能回流，增压蓄能器30的巨大压力经压射油缸60中的压射活塞杆70传递到压铸机压射机构的锤头再次挤压压铸模具中开始凝固的金属溶液，排除铸件中的气泡、气孔，使铸件组织更加致密。当保压一定时间后，关闭增压油道的控制阀卸压。When the integrated injection device of the injection system of the die-casting machine of the present invention is running on the cold-type die-casting machine, after the die-casting mold of the cold-type die-casting machine is clamped and locked, the control valve of the injection oil channel is opened, and the direction of the injection accumulator 20 is opened. The injection oil passage releases pressure, and the pressure oil enters the front side of the booster cylinder 40 through the injection oil passage and the differential pressure check valve 51, pushing the injection piston rod 70 in the injection cylinder 60 to move forward, and the hammer head Fill the die-casting machine die-casting mold with the solution through the flow channel. During the solidification process of the solution filled with the die-casting machine die-casting mold, the control valve of the injection oil channel is closed, and the control valve of the pressurized oil channel is opened at the same time. The device 30 releases pressure to the booster oil passage, and the high-pressure oil is transmitted to the front side of the booster oil cylinder through the booster oil passage. Since the booster piston 50 is equipped with a differential pressure check valve 51, the oil cannot flow back, increasing the pressure. The huge pressure of the pressure accumulator 30 is transmitted to the hammer head of the injection mechanism of the die-casting machine through the injection piston rod 70 in the injection cylinder 60, and squeezes the solidified metal solution in the die-casting mold again to eliminate the air bubbles and pores in the casting. Make the casting structure more dense. After maintaining the pressure for a certain period of time, close the control valve of the pressurized oil channel to relieve the pressure.
如图2所示，其为本发明的油路控制系统的原理图，该油路控制系统中，包括慢压射系统81、快压蓄能器控制系统82、增压蓄能器控制系统83及快排油系统84。其中，所述慢压射系统81将系统压力油经压射油路注入增压油缸40内，作用于压射活塞杆70，并推动压射活塞杆70向前运动，实现冲压填充物料的工作。快压蓄能器控制系统82和增压蓄能器83控制系统分别控制压射蓄能器20和增压蓄能器30工作，快排油系统对增压油缸里的油进行排油处理。As shown in Figure 2, it is a schematic diagram of the oil circuit control system of the present invention, in which the oil circuit control system includes a slow injection system 81, a fast pressure accumulator control system 82, and a boost accumulator control system 83 And quick drain oil system 84. Among them, the slow injection system 81 injects the system pressure oil into the pressurized oil cylinder 40 through the injection oil circuit, acts on the injection piston rod 70, and pushes the injection piston rod 70 to move forward to realize the work of stamping and filling materials. . The fast pressure accumulator control system 82 and the boost accumulator 83 control system respectively control the injection accumulator 20 and the boost accumulator 30 to work, and the fast oil discharge system discharges the oil in the boost cylinder.
所述慢压射系统81通过一换向阀V10连接在增压油缸上，其油压受一控制阀J2控制。所述快压蓄能器控制系统82包括插装阀V26和插装阀V27。所述插装阀V26的输入和输出端分别连接在压射蓄能器20和增压油缸40上，所述插装阀V26的控制端连接有一换向阀V11，以控制该插装阀V26工作。所述插装阀V27的输入和输出端分别连接在压射蓄能器20和增压油缸40上，所述插装阀V27的控制端连接有一换向阀V12。所述增压蓄能器控制系统83包括插装阀V29和换向器V14，插装阀V29的输入和输出端分别连接在增压蓄能器30和增压油缸40上，插装阀V29的控制端由换向器V14控制。所述快排油系统包括一插装阀V23和换向阀V17，插装阀V23的输入和输出端分别连接在增压油缸40前端、压射油缸60和排油装置841上，换向器V17两端分别连接在插装阀V29的控制端和排油装置841上。The slow injection system 81 is connected to the pressurized oil cylinder through a reversing valve V10, and its oil pressure is controlled by a control valve J2. The fast pressure accumulator control system 82 includes a cartridge valve V26 and a cartridge valve V27. The input and output ends of the cartridge valve V26 are respectively connected to the injection accumulator 20 and the booster cylinder 40, and the control end of the cartridge valve V26 is connected to a reversing valve V11 to control the cartridge valve V26 Work. The input and output ends of the cartridge valve V27 are respectively connected to the injection accumulator 20 and the booster cylinder 40 , and the control end of the cartridge valve V27 is connected to a reversing valve V12 . The boost accumulator control system 83 includes a cartridge valve V29 and a commutator V14, the input and output ends of the cartridge valve V29 are respectively connected to the boost accumulator 30 and the boost cylinder 40, and the cartridge valve V29 The control terminal is controlled by the commutator V14. The fast oil discharge system includes a cartridge valve V23 and a reversing valve V17. The input and output ends of the cartridge valve V23 are respectively connected to the front end of the booster cylinder 40, the injection cylinder 60 and the oil discharge device 841. Both ends of V17 are respectively connected to the control end of the cartridge valve V29 and the oil discharge device 841 .
以下为本发明压铸机压射系统的工作原理图的具体描述，当触发压射信号，V10换向阀S11得电慢速压射，所述慢压射系统81将系统压力油经压射油路注入增压油缸40内，作用于压射活塞杆70上，使压射活塞杆70向前运动，实现冲压填充物料的工作。到设定位置信号触发，二速压射信号启V11换向阀S13得电，V26换向阀开启压射蓄能器20压力油瞬时通过压差式单向阀V34进入压射活塞杆70后腔，实现快速压射；模具型腔满压射活塞杆70后腔压力骤升到控制阀J2调定值，S15待电V14换向阀换向，V29插装阀打开增压开始；压差式单向器51关闭，实现增压。冷却时间到开型腔，S14得电V12换向阀换向，V27插装阀打开跟踪开始。回锤S12得电V10阀换向，S17得电V17阀换向，V23插装阀关闭，压射活塞杆70前腔和增压活塞50前腔同时进入压力油，推动压射活塞杆70和增压活塞50回位，实现一次压射循环。排油系统换向器V17得电，插装阀V23打开，对增压油缸40里的油进行排油处理。The following is a detailed description of the working principle diagram of the injection system of the die-casting machine of the present invention. When the injection signal is triggered, the V10 reversing valve S11 is energized for slow injection, and the slow injection system 81 passes the system pressure oil through the injection oil. The injection is injected into the pressurized oil cylinder 40, and acts on the injection piston rod 70, so that the injection piston rod 70 moves forward to realize the work of stamping and filling materials. When the set position signal is triggered, the second-speed injection signal starts V11 reversing valve S13 is energized, and V26 reversing valve opens the injection accumulator 20. The pressure oil enters the injection piston rod 70 through the differential pressure check valve V34 instantaneously. Cavity, to achieve rapid injection; mold cavity full injection piston rod 70 back cavity pressure suddenly rises to the set value of control valve J2, S15 standby V14 reversing valve reversing, V29 cartridge valve opens and pressurization starts; differential pressure Type one-way device 51 is closed, realizes supercharging. When the cooling time reaches the opening of the mold cavity, S14 gets electricity to change the direction of the V12 reversing valve, and the V27 cartridge valve opens to track. The return hammer S12 is powered on to change the direction of the V10 valve, S17 is powered on to change the direction of the V17 valve, the V23 cartridge valve is closed, and the pressure oil enters the front chamber of the injection piston rod 70 and the front chamber of the booster piston 50 at the same time, pushing the injection piston rod 70 and The pressure boosting piston 50 returns to a position to realize an injection cycle. The commutator V17 of the oil discharge system is energized, the cartridge valve V23 is opened, and the oil in the booster cylinder 40 is discharged.
综上所述，本发明压铸机压射系统通过压射蓄能器20直接作用于油路压射方向的后方，增压蓄能器30作用于油路压射方向压力油腔的前方，增压蓄能器30前置，压射蓄能器20后置，快压蓄能器控制系统82和增压蓄能器控制系统83分别控制压射蓄能器20和增压蓄能器30工作，实现整体结构合理，油路块紧凑；液压系统回路简洁、完善，大大缩小和减小传统油路通道曲折，通油不畅与压力流量损失现象，充分发挥了效能；压射性能得到大的提高。In summary, the injection system of the die-casting machine of the present invention directly acts on the rear of the injection direction of the oil circuit through the injection accumulator 20, and the booster accumulator 30 acts on the front of the pressure oil chamber in the injection direction of the oil circuit, increasing The pressure accumulator 30 is at the front, the injection accumulator 20 is at the rear, and the fast pressure accumulator control system 82 and the boost accumulator control system 83 respectively control the injection accumulator 20 and the boost accumulator 30 to work , the overall structure is reasonable, the oil block is compact; the hydraulic system circuit is simple and perfect, which greatly reduces and reduces the twists and turns of the traditional oil channel, the phenomenon of poor oil flow and pressure flow loss, and fully exerts its effectiveness; the injection performance is greatly improved. improve.
以上所述仅为本发明的较佳实施案例而已，并不用以限制本发明，凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred implementation cases of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.
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| CN103752792B (en) * | 2014-01-26 | 2016-05-11 | 东莞市益格机电有限公司 | Energy saving die casting machine |
| CN105397051A (en) * | 2015-11-11 | 2016-03-16 | 无锡市鹏达液压机床厂 | Injection system for servo pressure casing machine |
| CN106968995B (en) * | 2017-04-26 | 2018-02-16 | 苏州三基铸造装备股份有限公司 | The die casting machine injection system started steadily |
| CN107520420A (en) * | 2017-09-06 | 2017-12-29 | 佛山市盈向精密机械科技有限公司 | A kind of injection punch head device on die casting machine |
| CN108453239B (en) * | 2018-03-12 | 2024-03-15 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control oil cylinder injection control system and method |
| CN108679003B (en) * | 2018-05-28 | 2025-02-11 | 宁波海天金属成型设备有限公司 | Pressure closed loop control oil circuit |
| CN110918937B (en) * | 2019-11-07 | 2022-03-25 | 宁波力劲科技有限公司 | A hydraulic control system for injection speed of a die casting machine and its control method |
| CN110985455B (en) * | 2019-12-31 | 2025-02-25 | 无锡市三信传动控制有限公司 | High-efficiency precision injection system |
| CN112792312B (en) * | 2020-12-25 | 2022-02-11 | 重庆百吉四兴压铸有限公司 | Break Rate Injection High Pressure Casting Method |
| CN114472844A (en) * | 2022-02-11 | 2022-05-13 | 宁波保税区海天智胜金属成型设备有限公司 | Metal injection molding mechanism and injection molding machine |
| CN116213674B (en) * | 2023-02-20 | 2025-10-24 | 广东宝洋精密机械有限公司 | Die casting machine boosting device and boosting method |
| CN117047073A (en) * | 2023-07-28 | 2023-11-14 | 浙江泰瑞装备有限公司 | A die-casting machine control system and control method integrating injection real-time control |
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