CN103381478A - Injection system of die casting machine - Google Patents
Injection system of die casting machine Download PDFInfo
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- CN103381478A CN103381478A CN2013102602383A CN201310260238A CN103381478A CN 103381478 A CN103381478 A CN 103381478A CN 2013102602383 A CN2013102602383 A CN 2013102602383A CN 201310260238 A CN201310260238 A CN 201310260238A CN 103381478 A CN103381478 A CN 103381478A
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Abstract
An injection system of a die casting machine comprises an injection oil line body, an injection energy accumulator, a supercharging energy accumulator, a supercharging oil cylinder, a supercharging piston, an injection oil cylinder, an injection piston rod and an oil line control system, wherein the injection energy accumulator and the supercharging energy accumulator are mounted on the injection oil line body; the injection piston rod is mounted inside the injection oil cylinder; the rear end of the injection oil cylinder is connected with the front end of the injection oil line body; the supercharging oil cylinder is arranged at the front end inside the injection oil line body; the oil line control system comprises a slow injection system, a quick compression energy accumulator control system, a supercharging energy accumulator control system and a quick oil discharging system; the slow injection system injects system pressure oil into the injection cylinder through the injection oil line; the quick compression energy accumulator control system and the supercharging energy accumulator control system respectively control a quick compression energy accumulator and a supercharging energy accumulator to operate, so as to enable the injection energy accumulator to act at the rear part in the oil line injection direction and enable the supercharging energy accumulator to act at the front part of a pressure oil cavity in the oil line injection direction, as a result, the oil pressure inside the pressure oil cavity can be compressed and supercharged.
Description
Technical field
The present invention relates to a kind of wire-insertion device, be specifically related to a kind of die casting machine injection system.
Background technology
Die casting machine is used for molten metal bath injection under pressure obtaining a series of industrial foundry machinery of solid metal foundry goods after die sinking to the mould cooling forming.Along with science and technology and industrial progress, especially along with industrial expansions such as automobile, motorcycle and household electrical appliance, die casting machine role in industrial production is also increasing.
The injection unit of existing die casting machine mainly is comprised of injection hydraulic cylinder assembly, injection chamber punch-head assembly, press-shoot energy accumulator assembly and supercharging accumulator assembly.During die casting machine work, metallic solution needs startup supercharging program that metal solid in mould is carried out supercharging and keeps the regular hour after being pressed into die casting through the injection program.
Yet traditional injection mechanism asphalt channel is tortuous, and hydraulic circuit is complicated, imperfection, have that serious logical oil is smooth loses phenomenon with pressure flow, thus supercharging to build the pressure time long, the supercharging low-response, be unfavorable for control and the raising of die casting die casting quality, seriously restricted industrial production.
Summary of the invention
Based on this, being necessary provides a kind of die casting machine injection system for deficiency of the prior art.
the present invention is achieved in the following ways: a kind of die casting machine injection system, comprise injection oil circuit body, press-shoot energy accumulator, the supercharging accumulator, pressurizing cylinder, charged piston, injection oil cylinder, and shot piston, described press-shoot energy accumulator and supercharging accumulator are installed on injection oil circuit body, described shot piston is installed in injection oil cylinder, the rear end of this injection is connected with injection oil circuit body front end, described pressurizing cylinder arranges the intrinsic front end of injection oil circuit, described charged piston is arranged in pressurizing cylinder, also comprise oil path control system, in this oil path control system, comprise the slow shot system, the fast accumulator control system of pressing, supercharging accumulator control system and fast oil draining system, described slow shot system with system pressure oil in the injection oil circuit injects shot sleeve, fast accumulator control system and the supercharging accumulator control system of pressing controlled respectively fast pressure accumulator and the work of supercharging accumulator, make press-shoot energy accumulator act on the rear of oil circuit injection direction in pressurizing cylinder, described supercharging accumulator acts on the place ahead of oil circuit injection directional pressure oil pocket in pressurizing cylinder, oil pressure in pressure oil cavity is compressed supercharging, and fast oil draining system carries out quick oil-discharging to the oil in pressurizing cylinder to be processed.
Further, be provided with the differential pressure type check valve in described charged piston, described injection oil circuit body is provided with main oil gallery, and the hydraulic oil of described main oil gallery flow into supercharging from the differential pressure type check valve and penetrates in oil cylinder.
Further, described slow shot system is connected on pressurizing cylinder by a reversal valve V10, and its supercharging oil pressure is controlled by a control valve J2.
Further, described fast pressure accumulator control system comprises inserted valve V26 and inserted valve V27, the input and output side of described inserted valve V26 is connected on press-shoot energy accumulator and pressurizing cylinder control valve J2, the control end of described inserted valve V26 is connected with a reversal valve V11, to control this inserted valve V26 work, the input and output side of described inserted valve V27 is connected on press-shoot energy accumulator and pressurizing cylinder control valve J2, and the control end of described inserted valve V27 is connected with a reversal valve V12.
Further, described supercharging accumulator control system comprises inserted valve V29 and reversal valve V14, and the input and output side of inserted valve V29 is connected on booster-type accumulator and pressurizing cylinder, and the control end of inserted valve V29 is controlled by reversal valve V14.
Further, described fast oil draining system comprises an inserted valve V23 and reversal valve V17, the input and output side of inserted valve V23 is connected on pressurizing cylinder, injection oil cylinder and discharge equipment, and reversal valve V17 two ends are connected on the control end and discharge equipment of inserted valve V29.
In sum, die casting machine injection system of the present invention directly acts on the rear of oil circuit injection direction by press-shoot energy accumulator, the supercharging accumulator acts on the place ahead of oil circuit injection directional pressure oil pocket, the supercharging accumulator is preposition, press-shoot energy accumulator is rearmounted, fast accumulator control system and the supercharging accumulator control system of pressing controlled respectively fast pressure accumulator and the work of supercharging accumulator, realizes reasonable integral structure, and oil path block is compact; Hydraulic circuit is succinct, perfect, greatly dwindles and to reduce the traditional oils paths tortuous, and logical oil is smooth loses phenomenon with pressure flow, has given full play to usefulness; The injection performance obtains large raising.
Description of drawings
Fig. 1 is the connection diagram of die casting machine injection system of the present invention.
Fig. 2 is the asphalt principle figure of die casting machine injection system of the present invention.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, the present embodiment provides a kind of die casting machine injection system, is used for extrusion molten body fluid body, makes it to form highly pressurised liquid injection cooling forming in the mould.This die casting machine injection system comprises injection oil circuit body 10, press-shoot energy accumulator 20, supercharging accumulator 30, pressurizing cylinder 40, charged piston 50, injection oil cylinder 60, reaches shot piston 70.
Described press-shoot energy accumulator 20 and supercharging accumulator 30 are installed on injection oil circuit body 10, described press-shoot energy accumulator 20 acts on the rear of oil circuit injection direction, described supercharging accumulator 30 acts on the place ahead of oil circuit injection direction, and namely the supercharging accumulator is preposition 30, press-shoot energy accumulator 20 postposition.Described injection oil circuit body 10 is provided with main oil gallery 11, injection oil duct (not shown) and supercharging oil duct (not shown).Described shot piston 70 is installed in injection oil cylinder 60, the rear end of this injection oil cylinder 60 is connected with injection oil circuit body 10 front ends, described pressurizing cylinder 40 arranges the front end in injection oil circuit body 10, described charged piston 50 is arranged in pressurizing cylinder 40, be provided with differential pressure type check valve 51 in this charged piston 50, the hydraulic oil of described main oil gallery 11 flow in pressurizing cylinder 40 from differential pressure type check valve 51.
Described press-shoot energy accumulator 20 is connected on the injection oil duct, this injection oil duct is provided with the magnetic valve (not shown), by controlling the switching of magnetic valve, thereby control injection oil duct is communicated with or sealing mutually with main oil gallery 11, described supercharging accumulator 30 is connected with the supercharging oil duct, described supercharging oil duct is provided with control valve, by controlling the switching of control valve, makes supercharging oil duct and the inner conducting of pressurizing cylinder 40 or sealing.
the integrated injection device of die casting machine injection system of the present invention is when cold chamber die-casting machine moves, after the locking of cold chamber die-casting machine die casting matched moulds, the control valve of injection oil duct is opened, press-shoot energy accumulator 20 discharge pressure to the injection oil duct, pressure oil is through injection oil duct and the unmarried valve 51 of differential pressure type, enter the front side of pressurizing cylinder 40, the shot piston 70 that promotes in injection oil cylinder 60 moves forward, tup is filled with solution in the die casting machine die casting by runner, in the process of the solution solidifies of filling with the die casting machine die casting, the control valve of injection oil duct is closed, the control valve of the oil duct of supercharging is simultaneously opened, supercharging accumulator 30 discharges pressure to the supercharging oil duct, pressure oil with high pressure is delivered to the front side of pressurizing cylinder through the supercharging oil duct, owing to being provided with differential pressure type check valve 51 in charged piston 50, oil can not reflux, the tup that the shot piston 70 of the immense pressure of booster-type accumulator 30 in injection oil cylinder 60 is delivered to injection mechanism of die-casting machine again pushes and begins the metallic solution that solidifies in die casting, get rid of the bubble in foundry goods, pore, foundry goods is organized finer and close.After the pressurize certain hour, close the control valve release of supercharging oil duct.
As shown in Figure 2, it is the schematic diagram of oil path control system of the present invention, in this oil path control system, comprises slow shot system 81, presses accumulator control system 82, supercharging accumulator control system 83 and fast oil draining system 84 soon.Wherein, described slow shot system 81 in the injection oil circuit injects pressurizing cylinder 40, acts on shot piston 70 with system pressure oil, and promotes shot piston 70 and travel forward, and realizes the work of punching press fill material.Fast accumulator control system 82 and supercharging accumulator 83 control systems of pressing are controlled respectively fast pressure accumulator 20 and 30 work of supercharging accumulator, and fast oil draining system carries out oil extraction to the oil in pressurizing cylinder to be processed.
Described slow shot system 81 is connected on pressurizing cylinder by a reversal valve V10, and its oil pressure is controlled by a control valve J2.Described fast pressure accumulator control system 82 comprises inserted valve V26 and inserted valve V27.The input and output side of described inserted valve V26 is connected on press-shoot energy accumulator 20 and pressurizing cylinder 40, and the control end of described inserted valve V26 is connected with a reversal valve V11, to control this inserted valve V26 work.The input and output side of described inserted valve V27 is connected on press-shoot energy accumulator 20 and pressurizing cylinder 40, and the control end of described inserted valve V27 is connected with a reversal valve V12.Described supercharging accumulator control system 83 comprises inserted valve V29 and commutator V14, and the input and output side of inserted valve V29 is connected on booster-type accumulator 30 and pressurizing cylinder 40, and the control end of inserted valve V29 is controlled by commutator V14.Described fast oil draining system comprises an inserted valve V23 and reversal valve V17, the input and output side of inserted valve V23 is connected on pressurizing cylinder 40 front ends, injection oil cylinder 60 and discharge equipment 841, and commutator V17 two ends are connected on the control end and discharge equipment 841 of inserted valve V29.
Be below the specific descriptions of the fundamental diagram of die casting machine injection system of the present invention, when triggering the injection signal, V10 reversal valve S11 gets electric injection at a slow speed, described slow shot system 81 with system pressure oil in the injection oil circuit injects pressurizing cylinder 40, act on shot piston 70, shot piston 70 is travelled forward, realize the work of punching press fill material.Trigger to the desired location signal, two-speed injection signal opens V11 reversal valve S13 and gets electricly, and the V26 reversal valve opens that press-shoot energy accumulator 20 pressure oils are instantaneous enters shot piston 70 back cavities by differential check valve V34, realizes quick injection; The full rear cavity pressure of shot piston 70 of the mold cavity control valve J2 setting that rises sharply, S15 treats electric V14 reversal valve commutation, the V29 inserted valve is opened supercharging and is begun; Differential isolator 51 cuts out, and realizes supercharging.Cool time, S14 got electric V12 reversal valve commutation to the open form chamber, and the V27 inserted valve is opened and followed the tracks of beginning.Return hammer S12 and get electric V10 valve commutation, S17 gets electric V17 valve commutation, and the V23 inserted valve is closed, and shot piston 70 ante-chambers and charged piston 50 ante-chambers enter pressure oil simultaneously, promote shot piston 70 and charged piston 50 returns, realize injection circulation.Oil draining system commutator V17 gets electric, and inserted valve V23 opens, and the oil of 40 li of pressurizing cylinders is carried out oil extraction process.
In sum, die casting machine injection system of the present invention directly acts on the rear of oil circuit injection direction by press-shoot energy accumulator 20, supercharging accumulator 30 acts on the place ahead of oil circuit injection directional pressure oil pocket, supercharging accumulator 30 is preposition, press-shoot energy accumulator 20 postposition, fast accumulator control system 82 and the supercharging accumulator control system 83 of pressing controlled respectively press- shoot energy accumulator 20 and 30 work of supercharging accumulator, realizes reasonable integral structure, and oil path block is compact; Hydraulic circuit is succinct, perfect, greatly dwindles and to reduce the traditional oils paths tortuous, and logical oil is smooth loses phenomenon with pressure flow, has given full play to usefulness; The injection performance obtains large raising.
The above is only better case study on implementation of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (6)
1. die casting machine injection system, comprise injection oil circuit body, press-shoot energy accumulator, the supercharging accumulator, pressurizing cylinder, charged piston, injection oil cylinder, and shot piston, described press-shoot energy accumulator and supercharging accumulator are installed on injection oil circuit body, described shot piston is installed in injection oil cylinder, the rear end of this injection is connected with injection oil circuit body front end, described pressurizing cylinder arranges the intrinsic front end of injection oil circuit, described charged piston is arranged in pressurizing cylinder, it is characterized in that: also comprise oil path control system, in this oil path control system, comprise the slow shot system, the fast accumulator control system of pressing, supercharging accumulator control system and fast oil draining system, described slow shot system with system pressure oil in the injection oil circuit injects shot sleeve, fast accumulator control system and the supercharging accumulator control system of pressing controlled respectively fast pressure accumulator and the work of supercharging accumulator, make press-shoot energy accumulator act on the rear of oil circuit injection direction in pressurizing cylinder, described supercharging accumulator acts on the place ahead of oil circuit injection directional pressure oil pocket in pressurizing cylinder, oil pressure in pressure oil cavity is compressed supercharging, and fast oil draining system carries out quick oil-discharging to the oil in pressurizing cylinder to be processed.
2. die casting machine injection system according to claim 1, it is characterized in that: be provided with the differential pressure type check valve in described charged piston, described injection oil circuit body is provided with main oil gallery, and the hydraulic oil of described main oil gallery flow in injection oil cylinder from the differential pressure type check valve.
3. die casting machine injection system according to claim 1 is characterized in that: described slow shot system is connected to pressurizing cylinder the place ahead by a reversal valve V10, and its supercharging oil pressure is controlled by a control valve J2.
4. die casting machine injection system according to claim 1, it is characterized in that: described fast pressure accumulator control system comprises inserted valve V26 and inserted valve V27, the input and output side of described inserted valve V26 is connected on press-shoot energy accumulator and pressurised oil pressure-controlled J2 and V14, the control end of described inserted valve V26 is connected with a reversal valve V11, to control this inserted valve V26 work, the input and output side of described inserted valve V27 is connected on press-shoot energy accumulator and pressurizing cylinder, and the control end of described inserted valve V27 is connected with a reversal valve V12.
5. die casting machine injection system according to claim 1, it is characterized in that: described supercharging accumulator control system comprises inserted valve V29 and reversal valve V14, the input and output side of inserted valve V29 is connected on booster-type accumulator and pressurizing cylinder, and the control end of inserted valve V29 is controlled by reversal valve V14.
6. die casting machine injection system according to claim 1, it is characterized in that: described fast oil draining system comprises an inserted valve V23 and reversal valve V17, the input and output side of inserted valve V23 is connected to injection oil cylinder the place ahead, on pressurizing cylinder and discharge equipment, reversal valve V17 two ends are connected on the control end and discharge equipment of inserted valve V29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260238.3A CN103381478B (en) | 2013-06-26 | 2013-06-26 | Die casting machine injection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310260238.3A CN103381478B (en) | 2013-06-26 | 2013-06-26 | Die casting machine injection system |
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| CN103381478A true CN103381478A (en) | 2013-11-06 |
| CN103381478B CN103381478B (en) | 2015-12-16 |
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| CN201310260238.3A Expired - Fee Related CN103381478B (en) | 2013-06-26 | 2013-06-26 | Die casting machine injection system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752792A (en) * | 2014-01-26 | 2014-04-30 | 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 |
| CN106968995A (en) * | 2017-04-26 | 2017-07-21 | 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 |
| CN108453239A (en) * | 2018-03-12 | 2018-08-28 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control cylinder press-shoot control system and method |
| CN108679003A (en) * | 2018-05-28 | 2018-10-19 | 宁波海天金属成型设备有限公司 | Pressure closed loop controls oil circuit |
| CN110918937A (en) * | 2019-11-07 | 2020-03-27 | 宁波力劲科技有限公司 | Hydraulic control system for injection speed of die casting machine and control method thereof |
| CN112792312A (en) * | 2020-12-25 | 2021-05-14 | 重庆百吉四兴压铸有限公司 | High-pressure casting method by using speed-cut pressure injection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201735759U (en) * | 2010-07-29 | 2011-02-09 | 东莞市益格机电有限公司 | Integrated injection device of cold die casting machine |
| JP2011189385A (en) * | 2010-03-15 | 2011-09-29 | Toshiba Mach Co Ltd | Injection device of molding machine |
| JP2012055935A (en) * | 2010-09-09 | 2012-03-22 | Toyo Mach & Metal Co Ltd | Die cast machine |
| CN202621870U (en) * | 2012-04-28 | 2012-12-26 | 宜兴市佳晨压铸机制造有限公司 | Hydraulic system of energy-saving die-casting machine |
| CN203316700U (en) * | 2013-06-26 | 2013-12-04 | 东莞市益格机电有限公司 | Injection system of die-casting machine |
-
2013
- 2013-06-26 CN CN201310260238.3A patent/CN103381478B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011189385A (en) * | 2010-03-15 | 2011-09-29 | Toshiba Mach Co Ltd | Injection device of molding machine |
| CN201735759U (en) * | 2010-07-29 | 2011-02-09 | 东莞市益格机电有限公司 | Integrated injection device of cold die casting machine |
| JP2012055935A (en) * | 2010-09-09 | 2012-03-22 | Toyo Mach & Metal Co Ltd | Die cast machine |
| CN202621870U (en) * | 2012-04-28 | 2012-12-26 | 宜兴市佳晨压铸机制造有限公司 | Hydraulic system of energy-saving die-casting machine |
| CN203316700U (en) * | 2013-06-26 | 2013-12-04 | 东莞市益格机电有限公司 | Injection system of die-casting machine |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752792A (en) * | 2014-01-26 | 2014-04-30 | 东莞市益格机电有限公司 | Energy-saving die casting machine |
| 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 |
| CN106968995A (en) * | 2017-04-26 | 2017-07-21 | 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 |
| CN108453239A (en) * | 2018-03-12 | 2018-08-28 | 宁波海天金属成型设备有限公司 | Real-time closed-loop control cylinder press-shoot control system and method |
| 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 |
| CN108679003A (en) * | 2018-05-28 | 2018-10-19 | 宁波海天金属成型设备有限公司 | Pressure closed loop controls oil circuit |
| CN110918937A (en) * | 2019-11-07 | 2020-03-27 | 宁波力劲科技有限公司 | Hydraulic control system for injection speed of die casting machine and control method thereof |
| CN112792312A (en) * | 2020-12-25 | 2021-05-14 | 重庆百吉四兴压铸有限公司 | High-pressure casting method by using speed-cut pressure injection |
| CN112792312B (en) * | 2020-12-25 | 2022-02-11 | 重庆百吉四兴压铸有限公司 | High-pressure casting method by using speed-cut pressure injection |
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