新涂布机培训资料英文版

Applicator roll swivelling
Operating position
Standby position
1 roller applicator unit(辊式涂布装置) 2 hydraulic cylinder(液压缸) 3 pivot bearing(旋转轴承)
Applicator roll swivelling
Applicator roll
1 color pan(颜料盘) 2 color distribution pipe(颜料分配管) 3 applicator roll(涂布辊)
Applicator roll speed approx. 20% of backing roll speed.(涂布辊的速度大约 为背辊速度的20%)
operating position 工作位置
cleaning position 清洗位置
Applicator roll gap
1 screw jack element(螺旋千斤顶) 2 handwheel with position indicator(操纵 轮和位置指示器) 3 limit stop(限位器) 4 Stand(支架)
Metering beam
1 spacer unit 2 cross member 3 hydraulic cylinder 4 device for adjusting metering beam angle 5 bearing arm 6 metering beam bearing arm 7 blade holder
A Technological part B Technical components C Operation D Maintenance E Safety
Task of GL Coater
Uniform application of fluid in order to: • Improve printability 改善印刷质量 • Improve opacity and gloss 提高透明度和光泽度 • Prevent curling and dusting 防止卷曲和除尘
Metering beam
1 intermediate flange 2 gear cam limit switch 3 screw jack element 4 servomotor 5 guard 6 angle encoder 7 motor flange
Stiff blade
1 paper web 2 loading blade 3 press-on hose
Color pan
1 application zone(施涂区) 2 color distribution pipe(颜料 分配管) 3 cooling duct(冷却剂导管) 4 Header(总管) 5 color pan(颜料盘)
Color distribution pipe
1 inlet(入口) 2 exit holes(出口) 3 Header(总管) 4 bypass holes(旁通孔)
3 color distribution pipe(颜料分配管) 3 color pan (颜料盘)
Color distribution pipe swivelling
Color distribution pipe swivelling
1 sealing strip(密封条) • color distribution
5650 mm 620 m/min 700 m/min
Design Data
Coating machine
Dryness before coating machine 93 % Dryness at reel 93 % Coating weight ≤ 12 g/m² Solid content ≥ 60 % Coating colour viscositiy 350 – 2000 cps (100 rpm, # 4 Spindle, 35°C) Coating metering type rod / Stiff blade Coating drying type Air Dryers (customer´s provision) Coating weight control CD manual
Edge doctor
Mind that the color will flow outwards after the edge doctor
203-10-15_BohuiGLCoater-BackingrolspedC492mpminat450mpminmachinesped-EdgedeckleDS_TR.MPG
Press-on hose de-aerated
Press-on hose loaded
Stiff blade
1 blade guard 2 pressing strip 3 press-on hose 4 coating blade
Width = 76,2 mm
Stiff blade
Standard stiff blade types:
GL – COATER STATION
Control function hydraulic with roll application system. The coater can be used with rod or blade.
Design Data
Design Data
Web width Max. operation speed Design speed
Application principle
Metering elements
Stiff/Bent Blade(硬/软 刮刀) Metering rod(计量棒)
Contour coat涂层轮廓 with metering rod
Blade coat
Coverage Smoothness
Design Data
Choose a blade angle and calculate the metering beam angle
Bent blade
Calculation for blade loading -6,0 mm!
W2: blade W3: metering
angle
beam angle
pre-coat
Bent blade
W3: metering beam angle
W2: blade angle
(W1: blade deflection angle)
Blade load (by retracting spacer units)
Bent blade
Metering beam angle
Blade angle
New_edge_deckle_C1_250_gsm_30_mpmin_1point1_m _gap_DS_sharp_uncoated_edge.MPG
New_edge_deckle_C1_250_gsm_425_mpmin_1point1_mm_gap.MPG
Edge doctor
Edge doctor
MD automatic
Design Data
Applicator roll
Diameter
450 mm
Face
5.860 mm
Cover thickness
20 mm
Cover material
rubber MagnaSize
Cover hardness
2s of steel, caps of cast iron.
Applicator roll gap
1 Handwheel(操纵轮) 2 spacer unit(定位架) 3 limit stop(限位器)
A = 0,5 - 0,8 mm
Applicator roll gap
Framing
1 backing roll bearing(背辊轴 承) 2 stand(支架) 3 metering beam bearing arm(刮刀梁的轴承座) 4 pivot bearing(传动轴承)
15,0°
37,5°
pre-coat
20,0°
42,5°
pre-coat
25,0°
47,5°
top-coat top-coat top-coat
3,0° 5,0° 7,0°
25,5° 27,5° 29,5°
Example: Blade loading -6,0 mm Deflection angle 22,5° W3 = 22,5° + W2
Splash guard
5 mm
Edge doctor
1 holder with clamp 2 doctor blade 3 applicator roll
Edge doctor
1 paper web 2 backing roll 3 doctor blade 4 holder 5 clamp
Color distribution pipe swivelling
Operating position
Cleaning position
1 hydraulic cylinder(液压缸)
1 color distribution pipe (颜料分配管)
2 color pan(颜料盘)
2 hydraulic cylinder (液压缸)
B) Blade bevel angle deflected by approx. 5°
Metering beam angle must be increased to approx. 35°
Bent blade
Metering beam angle 30°
Metering beam angle approx. 45° Range: 20-55°
thickness 0,381 mm 0,381 mm 0,450 mm 0,450 mm
bevel angle 30° 40° 30° 40°
Bevel angle thickness
Cross section of a stiff blade
Stiff blade
A) Blade bevel angle parallel to tangent on backing roll
Pigmenting and coating
0.15 - 4
3.5 - 16 20 - 80
2-5
<40 - 45 80 - 300
5 - 15
50 - 70 300 -2000
Application principle
1 backing roll(背辊) 2 roll applicator unit(辊式涂布装置) 3 framing(机架) 4 return system(回流 系统) 5 metering beam(刮 刀梁)
70 P&J
A Technological part B Technical components C Operation D Maintenance E Safety
GL Coater
machine shop assembly
Backing roll
1 backing roll(背辊) 2 rope pulley segment(引 纸绳滑轮组) 3 Rope(引纸绳)
Rollflex
1 pressing strip 2 press-on hose 3 metering rod 4 metering-rod bed 5 blade
pipe (颜料分配管) 3 application roll(涂布辊)
A = 1 mm
Color distribution pipe seal
1 seal(密封条) 2 color distribution pipe(颜料分配管) 3 clamping strip(夹紧条) 4 applicator roll(涂布辊) 5 fastening screw(螺栓)
Design Data
Backing roll
Diameter Face Cover thickness Cover material Cover hardness Body and welded – on journal of steel
1.000 mm 5.850 mm
25 mm rubber, Topcoat