德森印刷机说明书之使用手册2 - 第41页

德森精密机械设备有限公司 Shenzhen Shenzhen Shenzhen Shenzhen DeSen DeSen DeSen DeSen P re cision P re cision P re cision P re cision Machine Machine Machine Machine Co., Co., Co., Co., Ltd Ltd Ltd Ltd . . . . - 40 - 2) 皮 带 松 或 皮 带 胶…

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德森精密机械设备有限公司
Shenzhen
Shenzhen
Shenzhen
Shenzhen
DeSen
DeSen
DeSen
DeSen
Precision
Precision
Precision
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Machine
Machine
Machine
Machine
Co.,
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Ltd
Ltd
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.
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- 39 -
第四章 常见故障分析与排除
Chapter Common Faults and Solutions
第四章 常见故障分析与排除
Chapter Common Faults and Solutions
4.3
4.3
4.3
4.3
视觉系统: Visual
Visual
Visual
Visual
system
system
system
system
4.4
4.4
4.4
4.4
刮刀系 squeegee
squeegee
squeegee
squeegee
system
system
system
system
mits.
common faults
causes
solutions
没有检测到图像 Image is not
detected.
1)
CCD
CCD pow er
is broken down;
2)
CCD
The
signal cable connecting to
CCD and image-capturing
clamp is under poor contact .
1)
CCD
check CCD power and
replace it;
2)
Check signal cable circuit.
没有检测到图 No image is
detected.
1)
CCD-Camera X
x-axis motor of
CCD Camera is abnormal ;
2)
CCD-Camera Y
Y
-axis motor of
CCD Camera is abnormal .
1 检修 CCD-Camera X
Overhaul on x-axis mot or
of CCD Camera ;
2 检修 CCD-Camera Y
Overhaul on x-axis mot or
of CCD Camera .
平台调节不到位, 检测不到
The platform is not well
adjusted, and image can t be
detected.
1 平台调节 X 轴、 Y 轴及 θ
向的马达工作异常。 Motors
of x-axis,
Y
-axis and θ -
direction is abnormal on
platform.
1
Motor overha ul.
Common
Faults
Causes
Solutions
刮刀没有动作
Squeegee doesn t
worked
1)
的信号线接触不良; th e
signal line of feeding
squeegee motor driver
is under poor contact;
1)
检查线路; Check the circuit;
2)
调整皮带松紧; Tighten the belt;
3)
Maintain or replace squeegee mov
德森精密机械设备有限公司
Shenzhen
Shenzhen
Shenzhen
Shenzhen
DeSen
DeSen
DeSen
DeSen
Precision
Precision
Precision
Precision
Machine
Machine
Machine
Machine
Co.,
Co.,
Co.,
Co.,
Ltd
Ltd
Ltd
Ltd
.
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.
- 40 -
2)
The belt is loose or
the gum on belt
comes down;
3)
Squeegee motor
breaks down.
ing motor.
刮刀运动超出极限
Squeegee moving
exceeds the limits
1 限传感器故障。 Lim it
sensor error .
1 )检查或更换极限传感器。 Check or
replace limit sensor.
刮刀不能上升或下降
Squeegee doesn t go
up and down.
1)
The pressure of the air
path may be too low;
2)
气路堵塞、漏气。 The
air path is blocked or
leaks.
1)
Check the pressure of squeegee
air path to see whether it is too low
;
2)
检查刮刀气路是否有漏气、堵塞等
Check the air path of
squeegee to see whether it leaks
or is blocked etc.
印刷不完整
uncompleted printing
1)
PCB 间距太大; Th e
template void is
plugged or the
spacing between
template and PCB;
2)
范本上焊膏涂布不均;
The solder paste
coating is not even on
sample;
3)
属粉粒比例太大,堵塞
Too
big ratio of
irregular metal powder
particles in solders
paste and they block
the void.
1)
Clean the
opening and the bottom of sample;
2)
选择粘度合适的焊膏并使焊膏印刷
能有效覆盖整个印刷区域; Choose
the solder paste of proper viscosity
to make the solder paste printing
to cover the whole printing area;
3)
选择金属粉末颗粒尺寸与窗口尺寸
Choose the solder
paste whose metallic particle
matches the window size.
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Shenzhen
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Shenzhen
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DeSen
DeSen
Precision
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Machine
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Machine
Machine
Co.,
Co.,
Co.,
Co.,
Ltd
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Ltd
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.
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- 41 -
坍塌、桥连 slumping
and bridging
1)
The
pressure of squeegee
is too big;
2)
多; There is too much
solder paste left at the
bottom of sample;
3)
含量太少,以致无法维
The
viscosity and metal
content of solder
paste are too low to
keep the standing of
solder paste.
1)
调整压力; Adjust the pressure;
2)
Re-fix the
printing board;
3)
选择合适粘度的焊膏;印刷时保持
Choose the
solder paste of proper viscosity;
keep an agreeable environmental
temperature on printing.
厚度不均匀 uneven
thickness
1)
范本与 PCB 未能很好
The
sample fails to parallel
PCB ;
2)
PCB
厚度不均; The coatin g
of PCB bonding pad
is not even or smooth;
3)
焊膏搅拌不均 (粘度
The solder paste
is not mixed up (the
viscosity is not equal ).
1)
调整模板与印制板的相对位置;
adjust the relative place of template
to printing board;
2)
控制 PCB 焊盘镀层的平面度;
control the coating flatness of PCB
bonding pad;
3)
印刷前充分搅拌焊膏。 Fix well the
solder paste before printing.
边缘出现锯齿状
(分辨率不良) the rim
becomes saw-toothed
(bad resolution)
1)
The
viscosity of solder
paste is not big
enough;
2)
范本孔壁有毛刺、
The hole wall of
model has burrs on it
and not smooth;
3)
PCB 焊盘
边缘 The
coating of PCB
1)
选择粘度略高的焊膏 Choose the
solder paste with high viscosity;
2)
strictly control the coating
thickness over plate-making;
3)
Check the machining quality of
through printing opening before
printing.