Shanghai Daoqin Plastics Co., Ltd.

is improve/increase film property can, reduce cost, meet/satisfy use multiple applications and high property can requirements, more composite/compounding film development very fast, especially in active water versus for high, heavy ring 境保护, requirements long food shelf life and quality 发达国家. more copolymer film is its in types more film, CPP film product property can mono 一, can meet/satisfy market more requirements issues and 弊端.

1, general purpose type: more copolymer film can according to different applications, design different used for packaging machine upper packaging, material (especially is inner 衣, 裤) packaging, water packaging and other, or used for and printing rear BOPP film composite/compounding formed BOPP/CPP二层 film, used for material, drying food (如 fast bag, cover/cap and other) packaging, general purpose type structure is copolymer PP/ homopolymer PP/ copolymer PP or homopolymer.

2, metal type: requirements product surface for metal (如 aluminum) tool has strong/high strong/high degree, rear still can maintain relatively good dimensional stability and rigid property, surface tool has relatively low hot temperature degree and relatively high hot strong/high degree, metal type structure is copolymer PP/ homopolymer PP/ copolymer PP.

3, type: used for 蒸煮 二层 copolymer CPP, can 承受120℃ and 15MPa pressure 蒸煮杀菌. maintain internal food 形状, 风味, film cracking, or adhesion, tool has excellent dimensional stability, and nylon film or polyester film composite/compounding, packaging 含汤汁 type food and 肉丸, and other food or front processing cold food, type 三层PP film structure is copolymer PP/ copolymer PP/ copolymer PP.

4, high temperature type: packaging 烧鸡, 烧排骨 and 果酱, material 需121～135℃ high temperature 杀菌 三层 copolymer CPP film, its in copolymer PP requirements ratio generally type use copolymer PP property can more good. remove film outer, also has retardant property packaging, its structure is: PP/ bonding agent /PA/ bonding agent / copolymer PE; PP/ bonding agent /PA/ bonding agent / EVA; PP/ bonding agent /EVOH/ bonding agent /PE; PP/ bonding agent / EVOH/ bonding agent / EVA; PP/ bonding agent / EVOH/ bonding agent / PP.

more 层共挤流延 film extrusion technology is types film extrusion production process. process most large advantages is tool has high processing degree, can most large degree by processing material property can. especially is in processing high retardant more 层共挤流延 film 方面, tool has can ratio advantages.  

     more 层共挤流延 film extrusion technology features and advantages  

     more 层共挤流延 film extrusion technology is types will types or types above different plastics utilizing 2台 or 2台 above extrusion machine through more runner clamping 头, combined production more structure composite/compounding film, through cold molding technology. more 层共挤流延 film extrusion technology is production film extrusion production process. using/adopting this type of methods can production various different material film, tool has very high processing degree, especially is in processing semi crystallization thermoplastic property plastics 时, this type of processing methods can separation by processing material property can, meanwhile also can maintain most dimensions degree. made film tool has excellent optical property can and thick thin uniform degree, and due to using/adopting cold can obtain very high production speed degree, improvement film structure. method made film and other film （如吹 film ） versus ratio, its advantages is production speed degree fast, output/production volume high, has large amount production; product thick thin control degree relatively high, thick degree uniform property relatively good; transparent property and gloss property 俱佳; toward balanced property can excellent. certain material, polypropylene (PP) （PP） film, poly 脂（PET） film processing general purpose methods is methods is more 层共挤流延 method.  
extrusion machine mono 元 

     more 层共挤流延 method main/primary technology features is:  

     multiple raw materials and 辅助材 material mixed and 输送 精确 control;  

     2台 or 2台 above extrusion machine achieve 共挤;  

     melt 经T type 平模头 extrusion rear in large 直径 急 cold upper cold and heavy new solid rear molding;  

     more 层共挤复 clamping design make melt in 模头展开 rear can uniform distribution, anti 止各层 material material 间 互窜;  

     can for overall thick degree 进行精确监控 and adjustment, also can for certain key/critical function 层进行 thick degree 精确监控 and adjustment;  

     equipment control system non complex, raw materials mixed and 输送, temperature degree control, speed degree control, control, thick thin uniform degree control and other, another process control versus complex.  

     comparison dry method composite/compounding technology, more 层共挤流延 film extrusion technology can large degree reduce production cost, achieve 清洁化, safety production, product can property more 佳.   

     due to more 层共挤流延 film is through processing 处理直接 made more composite/compounding film. therefore more 层共挤流延 film and dry method composite/compounding film method versus ratio, tool has production less, can consumption small, cost low advantages. generally 说, using/adopting more 层共挤流延 formed film relatively most commonly used dry method composite/compounding formed film, production cost can reduce 20%～30%, meanwhile can make product structure quality more good, more stability. in more 层共挤流延 molding production process in, waste material generate, 不会污染周边 ring 境, for ring 境保护 适应 property good. meanwhile due to production process in, use easy 燃, easy has machine solvent agent type material 质, production safety property good. and versus 反, commonly used dry method composite/compounding formed film method, in production process in need use and a large amount of has machine solvent agent, this solvent agent or more or less 会危害人们 身体健康, but also also has easy 燃, easy 爆 危险, need 进行妥善处理. in more 层共挤流延 molding production process in, due to use has machine solvent agent and combined agent, therefore in more 层共挤流延 film in, 不会像 dry method composite/compounding film that 样出现残存 solvent agent issues. add upper more 层共挤流延 film is to made formed, need manufacturing composite/compounding use film in product, from 而避免 semi formed product in process in to outer ring 境 污染而引起 卫生 property can decline, make it tool has more good can property.  

     more 层共挤流延 film application  

     more 层共挤流延 method made film, due to it can make multiple tool has different features material material in extrusion process in composite/compounding in 一起, make products has different material excellent features, in features upper can 进行互补, from make products to requirements property can and appearance, anti oxygen and anti wet retardant property, retardant property, transparent property, property, temperature property, anti outer 线, resistant property, high temperature property, low temperature hot property and strong/high degree, rigid degree, hardness and other mechanical properties.  

     type film main/primary used for packaging industrial in need composite/compounding, specialized high film. its product scope/range 包括: low temperature hot film, aluminum film, high retardant film, film, light film, anti-static film, antimicrobial film, PVB anti film and other. this tool has comprehensive property can more composite/compounding film can widely used in food, material, 茶叶, products, product, product, textile product, chemical industry product, 卫生保健 product, use product, use product, use product and other packaging.   

     more 层共挤流延 film equipment design features and structure   

     德仕威 more 层共挤流延 film production equipment using/adopting and Europe technology M type system, precision alloy and electronics system and di true 空箱/ short gas technology, ensure film high speed, ultra- 透 production. precision 流延辊轮 design, ensure most less temperature 差, make film cooling type more add separation and uniform. has wide degree 达5m, can sleeve/set various 客户指定 specifications separation device, mono runner and more runner 模头. design features can processing most wide scope/range melt viscosity and melt temperature degree 差别, use processing most scope/range polymer, speed and structure, ensure material material mixed combined and delamination. meanwhile using/adopting flexible 模唇, most has 效 间距 adjustment 点（25.4mm） ensure flexible use metal 材质不会因受 to melt pressure effect/influence 而引起模唇间隙 变化, can more has micro 调模头横 toward wide degree upper melt thick degree 偏差, make product more add 平整. mold temperature degree control using/adopting Imported temperature block 进行数字智 can control, ensure temperature control degree to ±0.5℃. large long ratio extrusion machine and screw design ensure material material separation and extrusion stability. precision more separation heavy force amount add material system and thick plant/unit and full 线自动 control and 瑕疵监测组 formed overall, can 实时自动 adjustment extrusion machine extrusion amount, ensure extrusion material material stability separation and stability extrusion. 配置先进 melt amount gears 泵, through front 准确 测 pressure, 反馈至 micro machine adjustment extrusion machine speed degree, ensure material material extrusion pressure stability. SAME TRAC in thick system 精确测 amount more 层共挤材 material 每一层 thick degree, 并直接 through and 曲线 显示剖面, tool has high degree, high separation rate features, 且无任何放射 property 污染, separation combined enterprise environmental protection and safety requirements. in 线自动 can speed design, can decrease/reduce film 收卷累积误差, improve/increase film 收卷 平整 degree. design 跟踪接触辊 make film in high speed production 翻转时也 can maintain good 卷姿. 翻转架旋转 using/adopting frequency control methods, can achieve machine 架 缓 speed and speed 停止, improve/increase 停位精 degree, make film 收卷张 force more add stability. 任意锥 degree force setting can ensure 恒扭矩 收卷, can has anti film in process in shrink phenomenon, to 整齐 收卷效果.   

     德仕威3层共挤流延 film production 线包括:   

     optical grade plastics drying plant/unit (can parts) using/adopting in raw materials drying system, di 桶自动交替吸 wet. its hot ring can high wet. PLC编程 control, PID temperature system tool has more heavy safety function. 　 

     more 组份计 amount, heavy material plant/unit （ can parts ）.  

     extrusion machine plant/unit 包括1台90/35D卧式 extrusion machine, 1台120/35D卧式 extrusion machine and 1台80/33D卧式 extrusion machine.  

     device 包括1台90 full liquid pressure 圆柱式换网 device, 1台120 full liquid pressure 圆柱式换网 device, 1台80 full liquid pressure 圆柱式换网 device and 3 sleeve/set Dynisco temperature degree and pressure amount plant/unit.  

     mold 包括1 手动T type 模头（也 has full 自动模头 can selection ）, 1 sleeve/set 3层共挤 composite/compounding separation device and A/B/C, A/B/A, C/B/A插 parts 各1.  

     cooling and plant/unit 包括2根 cooling 辊, 1 positive pressure 风刀, 1 true gas box/case （ negative pressure 风刀）, 2台 electronics plant/unit, 1 strip/profile silicon 橡胶清洁辊以 and 12 strip/profile cationic 极处理 aluminum alloy 导辊.  

     thick plant/unit is outer or β射线测 thick 仪（据客户 requirements ）, can film thick data, its speed degree is 6m/min.  

     material 切割, and recycling plant/unit has 3 sleeve/set stability plant/unit, 1 sleeve/set material plant/unit and 1 sleeve/set in material recycling plant/unit.  

     electrical 晕处理 plant/unit is?50mm silicon 胶辊, its 输出功 rate 1～20kW can 调.  

     plant/unit film, in film upper formed and 暴筋.  

     自动收卷 plant/unit tool has 自动张 force control function, through 精确计米自动换卷.  

     most rear, through 德仕威 company HMC-Ⅱ control system control, adjustment, 监测整 production process.  

     equipment debugging and maintenance  

     generally 说, type equipment debugging, 维护, maintenance 遵循 原则 versus 似. in 此, 以德仕威 more 层共挤流延 film production equipment is simple introduction equipment debugging and maintenance.  

     首先, lower 顺序进行开 machine front 准备: water, electrical, electrical 流, electrical pressure and water pressure, water temperature is positive 常; 开启空 pressure machine and liquid pressure 泵, gas pressure, pressure is to value. for use gas 缸, its speed degree must 同步; for lubricated add lubricated 油4#钙基 lubricated 脂, decrease speed add 注90# machine 械油至油位线 above; 检查吸 material system is positive 常; 启动直流 electrical machine, electrical machine cold system, is 否堵塞, electrical machine temperature rise is positive 常（ attention/notes: must in temperature degree to requirements or electrical machine and screw separation 离 情况 lower electrical machine ）; setting, adjustment 二组牵引张 force and 收卷张 force. cooling 辊, 牵引辊应进行同步转 speed adjustment, to speed 同步; 打开测 thick 仪, 检查工 as is positive 常; requirements adjustment 摆幅辊 摆动幅 degree and speed degree; negative pressure system, adjustment negative pressure and 风口位置, high negative pressure 刀架; adjustment 切刀切断位置并 for machine debugging, ensure as positive can 靠; process requirements adjustment good system front rear, upper lower 位置; hot electrical 源, preheating mold 30min, again add hot material and 连接部 parts, 观察各 add hot is positive 常, temperature degree to setting value rear, must again temperature 30min above, ensure machine outer temperature degree and machine 筒模头 inner material material separation 熔化; has surface, cooling surface temperature degree, make temperature degree in setting value ±2℃之 inner, 辊面各点 temperature 差≤±1℃; add hot temperature degree to process temperature degree rear, 清洗模头唇口. 清理应 use relatively soft copper sheet/slice, copper filament and other, loss 伤模唇. good rear in 模唇口 surface coating upper demolding agent or silicon 油.  

     准备工 as good rear, can 按顺序开 machine. low speed extrusion machine machine inner material, rear molding system to as 位置. 启动流延 and other system make its low speed 运转, film to cooling rear, again adjustment 模头唇口 and cooling 辊 距离. cooling water 泵, 清洁辊, positive negative pressure 风刀, film machine and other. formed film formed rear 穿 测 thick 仪, machine and 各牵引 and 展平辊 and other, to machine film upper. pressure upper has pressure 辊, adjustment gas pressure. 启动测 thick 仪, machine 构, material recycling plant/unit, according to product wide degree adjustment in separation 切切刀位置. adjustment extrusion machine extrusion amount, improve/increase 流延辊, cooling and other speed, adjustment and 卷绕张 force, positive negative pressure and film machine and electrical pressure. 观察测 thick upper film thick degree 变化, 直至达 to setting production speed degree and product thick degree. if 发生异常情况, 应立即 drop speed causes. machine 组运转 positive rear, from thick 仪显示屏 upper, film thick degree 变化, adjustment and its versus for 应 模头螺栓 松紧, control film thick degree and 误差, film thick degree and 误差达 to setting value. in equipment and product full positive rear can 换卷, 进入连续 production.   

     至于停 machine as, lower 顺序进行. reduce extrusion machine, cooling and 牵引辊 and other speed, extrusion machine speed drop to 3～5r/min. film thick 仪, positive negative pressure 风刀, machine, plant/unit, material recycling plant/unit and other, has pressure 辊, drop lower system 并割断 film, system to non production 位置. reduce extrusion machine and temperature degree make extrusion machine low speed 运转, drop to setting temperature degree rear extrusion machine. use strip/profile and other soft property material mold 唇口封 upper. water 泵, gas 源, most rear machine electrical 源.  

     more 层共挤流延 film extrusion equipment maintenance can separation parts 进行, separation 别叙述.  

     extrusion machine 包括主 machine 马达, decrease speed and device and machine 筒, add material plant/unit. specific maintenance 规程如 lower:  

     machine 马达: 每星期必 must use pressure shrink gas will comprehensive one-time, maintain overall 清洁; 每天检查 cooling machine is has material, 每隔一 星期拆 lower one-time （如吹风清洁, must lower 滤网, use water 清洁, front must drying ）; month carbon 刷 接触状况 and abrasion loss 情况; month 检查测 speed electrical machine 反馈信号; month 检查整流 control electrical 路, testing electrical property can, ensure safety can 靠.  

     decrease speed and device: month decrease speed 箱 油位 high degree is 否适当; bearings is positive 常; 300h rear one-time 换油, rear production 3000h rear one-time decrease speed 箱, more lubricated 油; month 检查进, export 处旋转轴油封 密封情况; 每星期检查 cooling 油路循 ring system is as positive 常; 每星期检查联轴 device ring is has loss bad.  

     machine 筒, add material plant/unit: degree 检查发 hot and machine 身 联接情况 one-time, has necessary, heavy new solid filament; degree heavy new positive add hot temperature degree control degree one-time; month one-time material base/seat cooling pipeline is 否畅通; year screw machine one-time, testing screw and machine 筒 配 combined 间隙, its to standards, more 换; 每星期清洁风 machine cooling upper 灰尘, material, ensure machine dry and positive 常; 每8000操 as small rear to machine upper one-time; 每星期检查 one-time 自动吸 material plant/unit, ensure its positive as.  

     for/regarding plant/unit, 每星期应彻底清理 one-time 流延辊, 风刀, true plant/unit, maintain surface dry 净, has 任何杂质 and 油污; month 检查传动皮 belt/tape and strip/profile force one-time, ensure 松紧适当; 每星期检查 cooling plant/unit one-time, ensure table/sheet 读数准确, as positive 常; 每星期清理 lubricated plant/unit one-time, ensure positive 常.  

     for/regarding thick plant/unit, 每星期清理, lubricated 传动导轨 one-time, maintain belt/tape positive force 状况. month positive thick degree one-time, use pressure shrink gas will 探头彻底清理 dry 净.  

     for/regarding electrical 晕处理 plant/unit, 需每星期彻底清理放 electrical 极, silicon surface material, 并清理 one-time electrical 路, ensure parts surface 清洁, dispersion hot good. month need one-time electrical and silicon 胶辊 间隙, make combined uniform.  

     for/regarding 牵引卷取 plant/unit, 需每星期彻底清理 has 传动导辊, ensure its surface light 洁, will bearings add lubricated one-time; month one-time 收卷轴 离 combined device, ensure 连接密实 can 靠, as positive 常; month 检查清理各处传动 plant/unit, requirements good lubricated 处理; 每星期检查清理 one-time recycling machine and its tube/pipe system.  

     for/regarding control electrical maintenance to 每天进行 outer table/sheet scratch 拭, maintain 屏面清洁 and control 按扭灵敏; 每星期 need will electrical cooling machine 滤网拆 lower more 换清洗 one-time; month need for electrical inner parts use device remove 尘处理, ensure parts 清洁, dispersion hot good.  

     most rear, for/regarding industrial cold water machine and gas pressure shrink machine month 检查工 as one-time, as is positive 常, has has cold outer and other.  

     development trend and inner current situation  

     in recent years, machine processing and manufacturing technology formed 熟, plastics film more 层共挤流延 composite/compounding technology development relatively fast, currently more 层共挤流延 film equipment positive in toward more 层化, large type 化, precision direction development, relatively inner 流行 三层, 五层共挤 production 线, outer already 出现 七层, 九层甚至十一层共挤 production 线. another, environmental protection day 烈, packaging film light amount 化, thin development trend, this trend is more 层共挤流延 film equipment development direction. high 效, environmental protection, energy saving 也永远 is machine production enterprise 追求.  
     
     in Domestic film equipment in control degree, high speed property, can property, formed sleeve/set property and other and Imported equipment also relatively large, more 层共挤 film high product high retardant property film, high metal film also has Imported equipment production. therefore inner full 体同行应 in new process, new material, new equipment and other more as force, improve/increase equipment water and technology content, toward Imported equipment 看齐, in high market outer equipment competition, this can to Domestic more 层共挤 film equipment belt/tape more vast development 空间, can very good market demand, Domestic more 层共挤 film equipment good 明天.