CN102861899A - Injection pressurizing structure of die-casting machine - Google Patents

Injection pressurizing structure of die-casting machine Download PDF

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Publication number
CN102861899A
CN102861899A CN201210370332XA CN201210370332A CN102861899A CN 102861899 A CN102861899 A CN 102861899A CN 201210370332X A CN201210370332X A CN 201210370332XA CN 201210370332 A CN201210370332 A CN 201210370332A CN 102861899 A CN102861899 A CN 102861899A
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CN
China
Prior art keywords
injection
valve plate
valve
piston
way
Prior art date
Application number
CN201210370332XA
Other languages
Chinese (zh)
Other versions
CN102861899B (en
Inventor
汪俊成
Original Assignee
汪俊成
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Publication date
Application filed by 汪俊成 filed Critical 汪俊成
Priority to CN201210370332.XA priority Critical patent/CN102861899B/en
Publication of CN102861899A publication Critical patent/CN102861899A/en
Application granted granted Critical
Publication of CN102861899B publication Critical patent/CN102861899B/en

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Abstract

The invention provides an injection pressurizing structure of a die-casting machine, comprising an injection piston rod, an injection piston, a card opening ring, a nut, a pressurizing piston rod, an injection valve plate, a pressurizing valve plate and a guide sleeve, wherein the injection valve plate is provided with an injection oil path. The injection pressurizing structure is characterized in that the injection pressurizing structure of the die-casting machine further comprises a rapid injection valve plate arranged on the injection valve plate; the rapid injection valve plate is provided with a rapid injection oil path; the injection valve plate and the rapid injection valve plate are provided with a two-way plugging-in valve; the two-way cartridge valve comprises a two-way plugging-in throttling valve and a hydraulic control one-way valve; the two-way plugging-in throttling valve is connected with a rapid injection oil path through an oil pipe; and the hydraulic control one-way valve is connected with an injection oil path through an oil pipe. The injection pressurizing structure of the die-casting machine has the advantages of fast pressurizing speed, short pressure establishing time, good sealing effect and uneasiness of being leaked, and enables an injection system to have a more stable pressure-keeping effect.

Description

The die casting machine injection pressurized construction
Technical field:
The present invention relates to the die casting machine technical field, specifically the die casting machine injection pressurized construction.
Background technology:
Die casting machine injection system is the critical component that determines the die casting machine properties of product, and present traditional die casting machine adopts the three grades of injection systems in double loop that utilize the floating piston supercharging substantially.Floating piston in this injection, the pressurized construction and floating plug are installed, requirement on machining accuracy is higher, floating piston and floating plug are installed in the out-of-alignment situation, floating piston and floating plug conical surface Bel linear sealing effect are bad, easily reveal, and cause the pressurize wild effect.Charged piston promotes floating plug and floating piston conical surface Bel linear sealing, and supercharging could begin, and causes pumping rate slow, builds the unfavorable phenomenons such as pressure time length.
Summary of the invention:
To be solved by this invention is floating piston and floating plug is installed, requirement on machining accuracy is higher in the traditional floating piston supercharging, conical surface Bel linear sealing effect is bad when floating piston and floating plug disalignment, cause pumping rate slow, build the pressure time long, the unsettled difficult problem of pressurize effect.
Technical problem to be solved by this invention adopts following technical scheme to realize:
The die casting machine injection pressurized construction, comprise shot piston, be located at the shot piston on the shot piston, be arranged on the snap ring of splitting that is positioned at the shot piston outside on the shot piston, the charged piston bar that is connected by nut with shot piston, be located at injection valve plate and the supercharging valve plate in the charged piston bar outside, the charged piston bar is provided with the supercharging guide pin bushing between supercharging valve plate and the injection valve plate, described injection valve plate is provided with the injection oil circuit, it is characterized in that: the die casting machine injection pressurized construction also comprises a fast shot valve plate that is located on the injection valve plate, a described injection valve plate is provided with the fast shot oil circuit, described injection valve plate and an injection valve plate are provided with a two-way plug-in valve, described two-way plug-in valve comprises two-way plug-in mounting choke valve and hydraulic control one-way valve, described two-way plug-in mounting choke valve is connected with the fast shot oil circuit by oil pipe, hydraulic control one-way valve be connected with the injection oil circuit by oil pipe.
The end of described charged piston bar is provided with charged piston.
Be provided with the supercharging cylinder sleeve between described charged piston and the supercharging valve plate.
The invention has the beneficial effects as follows: the present invention cancels floating piston and the floating plug in injection, the supercharging, and external two-way plug-in valve replaces floating piston, and system's pumping rate is fast, it is short to build the pressure time, good sealing effect is difficult for revealing, and makes injection system pressurize effect more stable.
Description of drawings:
Fig. 1 is structural representation of the present invention.
The specific embodiment:
For technological means, creation characteristic that the present invention is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, the die casting machine injection pressurized construction, comprise shot piston 1, be located at the shot piston 2 on the shot piston 1, be arranged on be positioned at shot piston 2 outsides on the shot piston 1 split snap ring 3, the charged piston bar 5 that is connected by nut 4 with shot piston 1, be located at injection valve plate 6 and the supercharging valve plate 7 in charged piston bar 5 outsides, the charged piston bar is provided with supercharging guide pin bushing 8 between supercharging valve plate 7 and the injection valve plate 6, injection valve plate 6 is provided with injection oil circuit 9, the die casting machine injection pressurized construction also comprises a fast shot valve plate 10 that is located on the injection valve plate 6, an injection valve plate 10 is provided with fast shot oil circuit 11, described injection valve plate 6 and an injection valve plate 10 are provided with a two-way plug-in valve, two-way plug-in valve comprises two-way plug-in mounting choke valve and hydraulic control one-way valve, two-way plug-in mounting choke valve is connected with fast shot oil circuit 11 by oil pipe, hydraulic control one-way valve be connected with injection oil circuit 9 by oil pipe.The end of charged piston bar 5 is provided with charged piston 12.Be provided with supercharging cylinder sleeve 13 between charged piston 12 and the supercharging valve plate 7.
The present invention cancels traditional injection, the floating piston in the supercharging and floating plug, and external two-way plug-in valve replaces floating piston, and charged piston is directly controlled pressurized effect, makes system's pumping rate fast, builds the pressure time short.The fast shot oil circuit increases the opening and closing of a two-way throttle cartridge valve control fast shot oil circuit, and the injection oil circuit increases the opening and closing of a hydraulic control one-way valve control cover plate control injection oil circuit.Utilize the opening and closing of injection cavity pressure control two-way throttle cartridge valve and hydraulic control one-way valve control cover plate, when two-way plug-in valve was closed, its good sealing effect was difficult for revealing, and makes injection system pressurize effect more stable.
Above demonstration and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.

Claims (3)

1. die casting machine injection pressurized construction, comprise shot piston, be located at the shot piston on the shot piston, be arranged on the snap ring of splitting that is positioned at the shot piston outside on the shot piston, the charged piston bar that is connected by nut with shot piston, be located at injection valve plate and the supercharging valve plate in the charged piston bar outside, the charged piston bar is provided with the supercharging guide pin bushing between supercharging valve plate and the injection valve plate, described injection valve plate is provided with the injection oil circuit, it is characterized in that: the die casting machine injection pressurized construction also comprises a fast shot valve plate that is located on the injection valve plate, a described injection valve plate is provided with the fast shot oil circuit, described injection valve plate and an injection valve plate are provided with a two-way plug-in valve, described two-way plug-in valve comprises two-way plug-in mounting choke valve and hydraulic control one-way valve, described two-way plug-in mounting choke valve is connected with the fast shot oil circuit by oil pipe, hydraulic control one-way valve be connected with the injection oil circuit by oil pipe.
2. die casting machine injection pressurized construction according to claim 1, it is characterized in that: the end of described charged piston bar is provided with charged piston.
3. die casting machine injection pressurized construction according to claim 2 is characterized in that: be provided with the supercharging cylinder sleeve between described charged piston and the supercharging valve plate.
CN201210370332.XA 2012-09-27 2012-09-27 Injection pressurizing structure of die-casting machine CN102861899B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210370332.XA CN102861899B (en) 2012-09-27 2012-09-27 Injection pressurizing structure of die-casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210370332.XA CN102861899B (en) 2012-09-27 2012-09-27 Injection pressurizing structure of die-casting machine

Publications (2)

Publication Number Publication Date
CN102861899A true CN102861899A (en) 2013-01-09
CN102861899B CN102861899B (en) 2014-05-21

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CN201210370332.XA CN102861899B (en) 2012-09-27 2012-09-27 Injection pressurizing structure of die-casting machine

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09262654A (en) * 1995-11-20 1997-10-07 Tht Presses Inc Vertical type die casting press provided divided injection sleeve
CN2806852Y (en) * 2005-07-15 2006-08-16 江苏新瑞机械有限公司 Integrated injection hydraulic cylinder for die-casting machine
JP2010076001A (en) * 2009-12-02 2010-04-08 Toyo Mach & Metal Co Ltd Die-casting machine
CN202045356U (en) * 2011-04-20 2011-11-23 常州华晨机械制造有限公司 One-way valve injection device for die casting machine
CN202146998U (en) * 2011-06-23 2012-02-22 蚌埠市华艺压铸机制造有限责任公司 Injection structure of die casting machine
CN202894261U (en) * 2012-09-27 2013-04-24 汪俊成 Injection pressurizing structure of die casting machine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09262654A (en) * 1995-11-20 1997-10-07 Tht Presses Inc Vertical type die casting press provided divided injection sleeve
CN2806852Y (en) * 2005-07-15 2006-08-16 江苏新瑞机械有限公司 Integrated injection hydraulic cylinder for die-casting machine
JP2010076001A (en) * 2009-12-02 2010-04-08 Toyo Mach & Metal Co Ltd Die-casting machine
CN202045356U (en) * 2011-04-20 2011-11-23 常州华晨机械制造有限公司 One-way valve injection device for die casting machine
CN202146998U (en) * 2011-06-23 2012-02-22 蚌埠市华艺压铸机制造有限责任公司 Injection structure of die casting machine
CN202894261U (en) * 2012-09-27 2013-04-24 汪俊成 Injection pressurizing structure of die casting machine

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Granted publication date: 20140521

Termination date: 20170927