CN115507071A - 一种压铸机压射流量阀先导控制油路 - Google Patents
一种压铸机压射流量阀先导控制油路 Download PDFInfo
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- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
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- F15B1/024—Installations or systems with accumulators used as a supplementary power source, e.g. to store energy in idle periods to balance pump load
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/027—Installations or systems with accumulators having accumulator charging devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
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- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
- F15B13/042—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure
- F15B13/0426—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor operated by fluid pressure with fluid-operated pilot valves, i.e. multiple stage valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
- F16K31/124—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated
- F16K31/1245—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston servo actuated with more than one valve
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
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- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/50—Pressure control
- F15B2211/575—Pilot pressure control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
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Abstract
一种压铸机压射流量阀先导控制油路,包括快速储能器、增压储能器、快速比例阀、增压比例阀、第一单向阀、第二单向阀、第一高压过滤器和第二高压过滤器,第一单向阀入口与快速储能器油口连接,第二单向阀入口与增压储能器油口连接,第一高压过滤器入口分别与第一单向阀出口、第二单向阀出口连接,第一高压过滤器出口分别与快速比例阀先导阀、增压比例阀先导阀、第二高压过滤器入口相连。本发明通过同时从快速储能器和增压储能器引压射流量阀先导控制油路的压力油,只要任一储能器的压力油未被释放完,均能保证压射流量阀先导控制油路中充满压力油,压射流量阀处于受控状态,不会造成机器误动作,其具有结构简单、性能可靠、制造成本低的特点。
Description
技术领域
本发明涉及一种压铸机,特别涉及一种压铸机压射流量阀先导控制油路。
背景技术
压铸机大型机或者高端机的压射流量阀基本都配置成比例阀、伺服阀(例如中国专利文献号CN208057587U于2018年11月6日公开的一种压铸机用液压系统)。但是此类阀对油液的清洁度要求都比较高,所以均需另外设置先导油路对此类阀进行控制,目前先导油路的设置主要有三种方案,方案一是独立设置液压油源为先导油路提供压力油;方案二是每个阀独立设置过滤器,并从各自的储能器引压力油供给各阀的先导油路;方案三是集中从快速储能器或者增压储能器引压力油供给所有压射流量阀的先导油路,这三种方案均有缺陷:方案一、方案二结构复杂,成本高;方案三当引油的储能器没有压力油或压力较低时另外储能器的流量控制阀将因为没有先导压力油的控制而打开,该储能器的压力油将被释放,产生误动作,甚至造成人身财产损失。
因此,有必要做进一步改进。
发明内容
本发明的目的旨在提供一种结构简单合理、性能可靠、制造成本低、调试维修方便、实用性强的压铸机压射流量阀先导控制油路,以克服现有技术中的不足之处。
按此目的设计的一种压铸机压射流量阀先导控制油路,包括快速储能器、增压储能器、快速比例阀、增压比例阀,其特征在于:还包括第一单向阀、第二单向阀、第一高压过滤器和第二高压过滤器,第一单向阀入口与快速储能器油口连接,第二单向阀入口与增压储能器油口连接,第一高压过滤器入口分别与第一单向阀出口、第二单向阀出口连接,第一高压过滤器出口分别与快速比例阀先导阀、增压比例阀先导阀、第二高压过滤器入口相连。
还包括快排伺服阀和第三单向阀,第二高压过滤器出口与第三单向阀入口相连,第三单向阀出口与快排伺服阀先导阀相连。
第三单向阀出口与快排伺服阀先导阀相连的管路上设置有储能器。
第三单向阀出口与快排伺服阀先导阀相连的管路上还设置有压力表。
还包括油箱,第三单向阀出口与快排伺服阀先导阀相连的管路上还设置有与油箱相连的截止阀。
第二高压过滤器的过滤精度高于第一高压过滤器的过滤精度。
本发明的压铸机压射流量阀先导控制油路通过同时从快速储能器和增压储能器引压射流量阀先导控制油路的压力油,只要任一储能器的压力油未被释放完,均能保证压射流量阀先导控制油路中充满压力油,压射流量阀处于受控状态,不会造成机器误动作,其具有结构简单合理、性能可靠、制造成本低的特点。
附图说明
图1为本发明一实施例中压铸机压射流量阀先导控制油路图。
具体实施方式
下面结合附图及实施例对本发明作进一步描述。
参见图1,本压铸机压射流量阀先导控制油路,包括快速储能器1、增压储能器2、快速比例阀3、增压比例阀4、第一单向阀6、第二单向阀7、第一高压过滤器8和第二高压过滤器9,第一单向阀6入口与快速储能器1油口连接,第二单向阀7入口与增压储能器2油口连接,第一高压过滤器8入口分别与第一单向阀6出口、第二单向阀7出口连接,第一高压过滤器8出口分别与快速比例阀3先导阀、增压比例阀4先导阀、第二高压过滤器9入口相连。
还包括快排伺服阀5和第三单向阀10,第二高压过滤器9出口与第三单向阀10入口相连,第三单向阀10出口与快排伺服阀5先导阀相连。
第三单向阀10出口与快排伺服阀5先导阀相连的管路上设置有储能器11。
第三单向阀10出口与快排伺服阀5先导阀相连的管路上还设置有压力表12。
还包括油箱14,第三单向阀10出口与快排伺服阀5先导阀相连的管路上还设置有与油箱14相连的截止阀13。
第二高压过滤器9的过滤精度高于第一高压过滤器8的过滤精度,经过两次过滤,为快排伺服阀5提供更加洁净的压力油。
第三单向阀10为避免快排伺服阀5先导阀频繁快速动作对第一高压过滤器8、第二高压过滤器9、快速比例阀3、增压比例阀4的冲击。
储能器11为因快速储能器1、增压储能器2到快排伺服阀5的距离较远,为避免供油异常而设置,用于储油。
压力表12便于观察压射流量阀先导控制油路压力油是否正常。
截止阀13用于检修时放掉压射流量阀先导控制油路的压力油。
压铸机压射流量阀先导控制油路的工作原理:
通过分别在快速储能器1油口设置第一单向阀6、增压储能器2油口设置第二单向阀7,将两组储能器的压力油引入第一高压过滤器8,任一储能器压力油压力高,即从该储能器引压力油提供给压射流量阀先导控制油路,确保压射流量阀在任一储能器压力释放完前处于受控状态,避免储能器压力油未释放完造成压射流量阀没有压力油控制而失控打开使储能器压力油进入压射缸或增压缸,推动压射活塞杆伸出,引起人身财产损失。
上述为本发明的优选方案,显示和描述了本发明的基本原理、主要特征和本发明的优点。本领域的技术人员应该了解本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等同物界定。
Claims (6)
1.一种压铸机压射流量阀先导控制油路,包括快速储能器(1)、增压储能器(2)、快速比例阀(3)、增压比例阀(4),其特征在于:还包括第一单向阀(6)、第二单向阀(7)、第一高压过滤器(8)和第二高压过滤器(9),第一单向阀(6)入口与快速储能器(1)油口连接,第二单向阀(7)入口与增压储能器(2)油口连接,第一高压过滤器(8)入口分别与第一单向阀(6)出口、第二单向阀(7)出口连接,第一高压过滤器(8)出口分别与快速比例阀(3)先导阀、增压比例阀(4)先导阀、第二高压过滤器(9)入口相连。
2.根据权利要求1所述的压铸机压射流量阀先导控制油路,其特征在于:还包括快排伺服阀(5)和第三单向阀(10),第二高压过滤器(9)出口与第三单向阀(10)入口相连,第三单向阀(10)出口与快排伺服阀(5)先导阀相连。
3.根据权利要求2所述的压铸机压射流量阀先导控制油路,其特征在于:第三单向阀(10)出口与快排伺服阀(5)先导阀相连的管路上设置有储能器(11)。
4.根据权利要求2所述的压铸机压射流量阀先导控制油路,其特征在于:第三单向阀(10)出口与快排伺服阀(5)先导阀相连的管路上还设置有压力表(12)。
5.根据权利要求2所述的压铸机压射流量阀先导控制油路,其特征在于:还包括油箱(14),第三单向阀(10)出口与快排伺服阀(5)先导阀相连的管路上还设置有与油箱(14)相连的截止阀(13)。
6.根据权利要求1所述的压铸机压射流量阀先导控制油路,其特征在于:第二高压过滤器(9)的过滤精度高于第一高压过滤器(8)的过滤精度。
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CN115846614A (zh) * | 2023-03-02 | 2023-03-28 | 宁波力劲科技有限公司 | 一种自动回油的压铸机打料系统及控制方法 |
CN117366035A (zh) * | 2023-12-07 | 2024-01-09 | 吉林大学 | 一种大腔体囊式快速增压装置 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN115846614A (zh) * | 2023-03-02 | 2023-03-28 | 宁波力劲科技有限公司 | 一种自动回油的压铸机打料系统及控制方法 |
CN117366035A (zh) * | 2023-12-07 | 2024-01-09 | 吉林大学 | 一种大腔体囊式快速增压装置 |
CN117366035B (zh) * | 2023-12-07 | 2024-05-07 | 吉林大学 | 一种大腔体囊式快速增压装置 |
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