Tpu流延机淋膜纸称重拌料系统

Tpu流延机淋膜纸称重拌料系统，称重式混料机，称重式拌料机TPU流延机淋膜纸称重拌料系统 TPU Cast Film & Laminating Paper Gravimetric Batching System 适用：TPU流延淋膜生产线，TPU颗粒、色母、功能母粒、填料、回料连续计量混料，配套挤出流延机，用于淋膜纸、热熔胶膜、复合膜生产。 一、简介 Introduction TPU流延淋膜纸称重拌料系统，是连续挤出型失重式配料系统（Loss‑in‑Weight Feeder），适配TPU热敏材料高速流延淋膜工艺。实现TPU主料、色母、抗水解母粒、填料、边角回料多组分按重量比例连续计量、动态混合，直接供给挤出机，稳定淋膜纸的膜厚、透明度、粘合性能，解决人工配料配比波动、色差、膜面晶点、厚薄不均问题。 TPU Cast Film & Laminating Paper Gravimetric Batching System is a continuous extrusion‑oriented loss‑in‑weight batching system. It is designed for high‑speed TPU cast‑film & laminating processes. It realizes continuous gravimetric dosing and dynamic blending of TPU virgin pellets, color masterbatch, anti‑hydrolysis masterbatch, fillers and regrind. Materials are fed directly to extruder, to stabilize film thickness, transparency and bonding performance of laminating paper. It eliminates quality defects caused by manual batching, such as color difference, crystal spots and uneven thickness. 二、系统组成 System Composition 1. 原料储料单元 Material Storage Unit 多组独立不锈钢料仓，存放TPU新料、回料、色母、功能助剂；料仓配防架桥振打装置，TPU易吸潮，可配套除湿干燥机预处理；料位监测，缺料自动报警。 Multiple independent stainless‑steel silos for TPU virgin material, regrind, color masterbatch and functional additives. Equipped with anti‑bridging vibrators. Dehumidifying dryer can be matched for moisture‑sensitive TPU. Material‑level monitoring with low‑level alarm. 2. 核心计量单元 Core Metering Unit【失重式喂料 Loss‑in‑Weight Feeder】 每路原料独立称重料斗，高精度称重传感器；连续动态失重计量，PID闭环实时调节螺杆转速，不受物料密度、温度变化影响；适合TPU高速连续挤出生产；支持微量色母/助剂高精度添加（精度可达±0.3%）。 Each material has independent weighing hopper with high‑precision load cells. Continuous loss‑in‑weight metering with PID closed‑loop control to adjust screw speed in real‑time. Insensitive to material density and temperature fluctuation. Ideal for high‑speed continuous TPU extrusion. Supports high‑precision micro‑dosing for color masterbatch and additives (accuracy up to ±0.3%). 注：流延淋膜连续生产优先用失重式LIW；批次增重式Gravimetric Blender不适合高速连续流延工艺。 Note: Loss‑in‑Weight (LIW) is preferred for continuous cast‑film production. Batch‑type gravimetric blender is not suitable for high‑speed continuous casting. 3. 静态混合单元 Static Mixing Unit 物料经各失重喂料器输出后进入静态混合器，实现TPU主料与助剂充分均化，避免局部浓度不均造成淋膜纸出现晶点、条纹；无需机械搅拌，减少剪切，保护TPU热敏性能。 After feeding from each loss‑in‑weight feeder, materials go through static mixer for homogeneous blending. Avoid local concentration deviation which causes crystal spots and streaks on laminating paper. No mechanical stirring to reduce shear and protect heat‑sensitive TPU. 4. 输送单元 Conveying Unit 密闭负压真空上料，管路防TPU颗粒磨损；物料直接送入挤出机进料斗；防止TPU吸潮、粉尘飞扬。 Sealed vacuum negative‑pressure conveying. Wear‑resistant pipelines for TPU pellets. Material feeds directly into extruder hopper to prevent moisture absorption and dust pollution. 5. PLC智能控制单元 PLC Intelligent Control Unit 触摸屏HMI，储存多套TPU淋膜配方；和流延挤出机联动，根据挤出机产量自动同步调整各路喂料流量；生产数据记录、配比超限报警；支持对接MES系统；具备配方权限管理，防止配方泄露。 HMI touch screen with multiple TPU laminating recipes stored. Interlock with cast‑film extruder. Automatically adjust feeding flow according to extruder output. Production data logging, ratio out‑of‑limit alarm. MES‑connectable. Recipe‑permission management to avoid formula leakage. 6. 选配附件 Optional Accessories TPU分子筛除湿干燥机、金属分离器、粉碎机（回收淋膜边角料）、模头除露机Mold Dehumidifier。 Molecular‑sieve dehumidifying dryer for TPU, metal detector, granulator for edge trim recycling, Mold Dehumidifier. 三、工作原理 Working Principle 1. 在触摸屏调用预设配方，设置TPU主料、色母、助剂、回料各自的质量流量； Call pre‑saved recipe on HMI, set mass flow rate for TPU virgin, color masterbatch, additives and regrind. 2. 各路失重喂料机独立工作，传感器实时监测料斗重量下降速率，计算瞬时出料流量；PID闭环动态调节螺杆转速，维持设定流量； Each loss‑in‑weight feeder operates independently. Load‑cells monitor weight‑loss rate of hopper to calculate real‑time output flow. PID loop adjusts screw speed to maintain target flow. 3. 各路物料流出后进入静态混合器充分混匀； All material streams go into static mixer for homogeneous blending. 4. 混合好物料密闭输送进入挤出机，供给TPU流延淋膜主机； Blended material is sealed‑conveyed into extruder for TPU cast‑film lamination. 5. 料斗物料低位时，系统自动快速补料；补料完成后恢复失重计量模式，实现24小时不间断生产； When hopper is low, automatic fast refilling. After refilling, switch back to loss‑in‑weight mode for 24‑hour non‑stop production. 6. 系统实时记录各组分消耗量，可导出生产报表，实现质量追溯。 System records consumption of each component; production reports exportable for quality traceability. 四、核心优势 Core Advantages ✅ 连续动态失重计量，适配TPU高速流延淋膜，不受原料密度波动影响，配比稳定，减少淋膜纸厚薄不均、晶点、色差 Continuous loss‑in‑weight metering for high‑speed TPU casting. Insensitive to density variation. Stable ratio to reduce thickness deviation, crystal spots and color difference. ✅ 全密闭配料输送，TPU不易吸潮，减少水解黄变，提升淋膜纸粘接性能 Fully‑sealed batching & conveying, prevent TPU moisture absorption, reduce hydrolysis and yellowing, improve bonding performance of laminating paper. ✅ 配方一键调用，快速切换不同TPU淋膜配方，适合多品种小批量订单 One‑click recipe switching for different TPU laminating formulas, suitable for multi‑variety small‑batch orders. ✅ 与挤出主机联动，随挤出速度自动同步调节喂料，稳定米重，保证淋膜纸产品一致性 Interlock with extruder, auto‑adjust feeding speed following extruder output, stable mass‑per‑meter for consistent laminating paper quality. ✅ 生产数据可追溯，报警记录，适配智能化工厂 Traceable production data and alarm logs for smart factory requirements.