Shanghai Daoqin Plastics Co., Ltd.

injection molding processing in is electrical reduce cost,我们 use frequency device adjustment injection molding machine consumption electrical amount, lower introduction lower frequency device advantages.

    1, energy saving
    injection molding machine usually use 三组异步交流 electrical machine can speed, its 拖动 定 amount sheet/slice 泵, liquid pressure 油 流 amount can 改变. injection molding machine in low speed as 时, more 余 流 amount 经溢流阀流回油箱, formed can amount a large amount of loss 失. frequency device can according to control system 指令, adjustment electrical machine speed, make sheet/slice 泵输出 liquid pressure 油 流 amount can according to injection molding machine as speed degree requirements 改变, decrease/reduce liquid pressure from 溢流阀流回油箱 can consumption, from 而节省 a large amount of electrical can. according to injection molding product different, 实时监测 electrical machine consumption electrical amount, electrical rate 达20～70％.



    2, 避免人身 safety 事故
    injection molding machine add frequency device rear, due to as in mold upper parts, and 修模时, machine electrical speed degree amount 无输出, electrical machine 处于停止状态, liquid pressure system pressure, machine 械 误动 as, full injection molding machine safety 事故 发生.

    3, soft 启动
    frequency lower using/adopting is 星三角形 drop calendering 时启动, electrical is electrical machine electrical 流 4～7倍, more large rate electrical machine meanwhile 启动, will for electrical formed very large impact. using/adopting frequency speed rear, 马达 需 in electrical lower can soft 启动, electrical slip impact, decrease small electrical for and electrical impact, long electrical machine use lifespan.

    4, decrease/reduce 无功功 rate
    无功功 rate increase loss and equipment hot, more main/primary is is rate factors reduce electrical has rate reduce. use frequency speed energy saving control plant/unit rear, due to frequency device inner electrical function, make rate factors is 1, increase large electrical has rate, from 而节省 无功功 rate consumption can amount.

    二, frequency device in injection molding machine energy saving application in issues and solution methods
    1, injection molding machine add frequency speed rear, electrical machine speed injection molding machine as speed degree 变化而变化, injection molding production cycle ring time relatively short, as frequency speed make electrical machine frequency 繁 处于 add decrease speed process in, due to electrical machine add decrease speed time relatively long, injection molding ring cycle time increase, production rate reduce. company production frequency device and injection molding machine electrical can 进行联 machine control, through electrical for frequency device control, achieve frequency device frequency rate and 输出转矩 understanding adjustment, to frequency device and injection molding process as most combined, solution injection molding machine application frequency energy saving technology production efficiency reduce bottle 颈.

    2, electrical machine speed reduce, and electrical machine versus 连 风扇叶 sheet/slice speed reduce, make electrical machine dispersion hot defect. in addition, insulation in frequency device frequency electrical pressure impact lower insulation reduce. currently, electrical machine already production frequency electrical machine, is for this 两点进行 改进, electrical machine 风扇独立于转子, speed electrical machine speed reduce effect/influence, insulation using/adopting more excellent 良 材 material, from solution frequency device effect/influence electrical machine lifespan issues.

    3, sheet/slice as main/primary high speed 运转 转子 叶 sheet/slice 甩出, from to 吸油 目. if 转子转 speed reduce, sheet/slice has 足够 离心 force, can has pressure 紧定子 surface, this inner 泄漏就 increase, efficiency obvious reduce, speed low certain 一临界 value （如400r/min）时, sheet/slice 泵 吸油 can force relatively 差, 甚至不 can 出油, 出现此 issues 时, must improve/increase frequency rate setting increase 益. in addition, inner combined gears development, will 逐步取代叶 sheet/slice formed is injection molding machine development 主流, from solution sheet/slice low speed property issues.

    4, high pressure and slow speed mold opening 时, frequency device in low speed large 扭矩 状态 lower, electrical easy ultra- 额定 value formed electrical 流保护, company production frequency device 输入端设 has and mold opening 输入点, and injection molding machine electrical 脑 锁模 and mold opening 输出点 versus 连, through 特定 变 frequency device soft parts make electrical machine in mold opening and 锁模时 maintain high speed 运行, low speed large 扭矩 状态出现.