pascal ben chen ph.d.. 2006 l 2006 81.8% 9 3903 l 2005 -1.1% 42.9% l 2006 3 5125 2005 +16.3% l 51.1%...
TRANSCRIPT
液壓比例伺服技術在橡塑膠射出機上應用
Pascal 陳文慶 博士Ben Chen Ph.D.
2006 台灣橡塑膠射出機產值 2006 81.8% 出口 9 億 3903 萬美金 與 2005 -1.1% 大陸香港 42.9%
2006 進口 3 億 5125 萬美金 與 2005 +16.3% 日本 51.1% 德國 13.5%
光電 半導體 面板 通訊
橡塑膠射出機產品 塑膠射出機 橡膠射出機 吹瓶機機 押出機
橡塑膠射出機市場
塑膠射出機 每年產量 台灣 12000-15000 台 中國 10-12 萬台 ( 海天 3-4 萬台 ) 台灣定位
射出機
比例壓力流量閥
快速射出閥
開關模比例閥
KBSDG4VKBFDG5V DG4V-3 KBHDG5V CVCS/CVICustomized PQ Spools for
Injection Cylinder control
Developing the PQ Pump
Clamping Challenges
• Move huge mass smoothly, quickly, & precisely Close loop pressure
& velocity control• High performance, two-stage prop valve• Prop pressure control valve
Ejector Challenges• Protect mold (pressure limitation), eject on the fly (speed regulation), support robot (positioning).
• Close loop pressure, velocity, and positioning control • Servo performance, single stage prop valve
For Machine Setup
Single Stage NG6
Directional Valve
Injection Challenges•Smooth, accurate, & repeatable transition from velocity to pressure control
• Close loop pressure & velocity control• Servo performance, two-stage prop valve
Screw Rotation Challenges
• Constant velocity control•High flow
• Prop Slip-in Cartridge Valves
Plastics Injection MoldingClamping Cylinder
Ejector Carriage
Injection Cylinder
Metering Motor
KBHDG5V
Single Stage NG6 Directional
Valve
Clamping Challenges• Move huge mass smoothly, quickly, & precisely
• Close loop pressure & velocity control• High performance, two-stage prop direction valve• Prop pressure control valve
Plastics Blow Molding
KBHDG5V
KBSDG4V
Parison Control Challenges
• Wall thickness control
• Close loop positioning control• Servo performance, single stage prop directional valve
Injection Challenges• Smooth, accurate, & repeatable transition from velocity to pressure control
• Close loop pressure & velocity control• Servo performance, two-stage prop directional valve
KBFDG5V
Parison Control
Injection Control
Clamping Control
PQ 系統比例壓力流量閥1. Vane Pump (Fixed) 90-95% 開迴路 0-800mA Yuken EFBG 日系 閥軸 LVDT 迴授 0-2700mA Bosch Vickers 歐系2. Pistion Pump (Variable) 5-10% Yuken Rexroth Bosch
3. Pistion Pump + 伺服馬達 ( 控制轉速 )
PQ 開迴路 EFBG Valve 剖面
0-800mA
誤差 3-5%600LPM*0.05=30LPM
PQ EFBG Valve
PQ 閉迴路Proportional Throttle Valve NG10
2-Way Cartridge NG25
PQ Speed 快 & 準Proportional Throttle Valve NG10
KFTG4V-5-2B70N-Z-VM-U1-H7
Response 0.027s ( at 80 LPM)
Hysteresis <1%
2-Way Cartridge NG25
type CVU-25-EFP1-B29-45-31
Pressure Max 315bar
Response 0.040s ( at 210 LPM)
Hysteresis <1%
射出機 PQ NG32
CVU-32 流量速度曲線速度曲線圖
0 2.214.6
37
60
83
105
125.7
144.2
164.9
185.9
0102030405060708090
100110120130140150160170180190200
0 10 20 30 40 50 60 70 80 90 100
(%)輸入百分比
(mm
/s)
輸出
速度
NG32 閉迴路壓力控制曲線 KCG-3-160
壓力曲線圖
6
20.8
34
47.2
60.7
74.2
87.8
101.8
115.2
128.6
140
010
20304050
60708090
100110120130
140150
0 10 20 30 40 50 60 70 80 90 100
(%)輸入百分比
(bar
)輸
出壓
力
VOLTAGEVOLTAGE
CURRENTCURRENTPRESSUREPRESSURE FORCEFORCE
RATE OF CHANGEOF FORCE
RATE OF CHANGEOF FORCE
OPEN LOOP CONTROL
VOLTAGEVOLTAGE
CURRENTCURRENT PRESSUREPRESSURE FORCEFORCE
RATE OF CHANGEOF FORCE
RATE OF CHANGEOF FORCE
VOLTAGEVOLTAGE
++__
FORCE :VOLTAGEFORCE :VOLTAGE
P I DP I D
CLOSED LOOP CONTROL - FORCE
VOLTAGEVOLTAGE
CURRENTCURRENT FLOWFLOW VELOCITYVELOCITY
VOLTAGEVOLTAGE
++__ VOLTAGE : VELOCITYVOLTAGE : VELOCITY
P I DP I D
CLOSED LOOP CONTROL - VELOCITY
0.1mm/sec --2m/s --10m/s變動 壓力 & 負載 & 油溫0.1mm/sec --2m/s --10m/s變動 壓力 & 負載 & 油溫誤 差 1% 以內誤 差 1% 以內
VOLTAGEVOLTAGE
CURRENTCURRENT FLOWFLOW POSITIONPOSITION
VELOCITYVELOCITY
VOLTAGEVOLTAGE
++__ VOLTAGE : POSITIONVOLTAGE : POSITION
P I DP I D
PID
CLOSED LOOP CONTROL - POSITION
定位精度 0.01mm定位精度 0.01mm
SERVO VALVESERVO VALVE
Servo
高速比例閥 KHDG5V-7-2C200N 24ms at 375LPM KHDG5V-8-2C375N 37ms at 375LPM 精密射出 開關模
2007 現況 產量下降 20-30% 本質好公司 營業額不變 高階機台增加 低階機台減少 開發新機種 全球分散市場
Q & A