产品名称：Loss-in-weight feeder 失重秤

Loss-in-weight feeder 失重秤，Loss-in-weight feeder ，Loss-in-weight scale

# Loss-in-weight Feeder 失重秤 中英双语完整介绍 ## 一、设备定义 Definition **中文**：失重秤（失重式喂料机）是依靠料仓实时重量变化计算出料流量的连续式高精度计量输送设备，广泛应用塑胶、化工、食品、新材料挤出造线配料。 **English**：Loss-in-weight feeder is a continuous high-precision metering conveying device that calculates discharge flow rate based on real-time weight change of the hopper, widely used in plastic, chemical, food, new material extrusion and compounding industries. ## 二、工作原理 Working Principle **中文** 1. 整套设备由称重料斗、称重传感器、驱动输送机构、PLC控制系统组成； 2. 工作阶段持续采集料仓总重量，单位时间内重量减少值即为瞬时出料流量； 3. 系统实时对比实际流量与设定配方流量，自动调节螺杆/皮带转速闭环修正，保持恒定下料精度； 4. 料仓物料低位时自动快速补料，补料阶段切换容积式计量，补料完成切回失重计量模式。 **English** 1. The whole unit consists of weighing hopper, load cells, drive conveying mechanism and PLC control system. 2. During operation, the system continuously collects total hopper weight; the weight reduction per unit time equals the instantaneous discharge flow. 3. The controller compares actual flow with set formula flow in real time, automatically adjusts screw/belt speed for closed-loop correction to maintain stable feeding accuracy. 4. When material level is low, fast refilling is triggered automatically. Volumetric metering is adopted during refilling, and loss-in-weight mode resumes once refilling finishes. ## 三、核心优势 Core Advantages ### 中文 1. 计量精度高：相比体积式色母机、普通螺旋送料，精度可达±0.2%~±1%，适合高精度改性、PET/PE造粒、薄膜挤出； 2. 不受物料物性影响：粉体、颗粒、玻纤、高粘度粉料、易架桥物料均可稳定计量； 3. 闭环自动补偿：物料架桥、出料波动、电压波动均可实时调速修正； 4. 多机联动：可多台失重秤同步配比，实现全自动多种原料共混； 5. 数据可追溯：实时记录流量、累计下料重量，适配生产质检管控。 ### English 1. High metering accuracy: accuracy reaches ±0.2%~±1%, much better than volumetric color feeders and ordinary screw feeders, ideal for high-precision modification, PET/PE pelletizing and film extrusion. 2. Insensitive to material properties: stably meter powder, pellets, glass fiber, high-viscosity powder and bridging-prone materials. 3. Closed-loop automatic compensation: real-time speed adjustment offsets bridging, feeding fluctuation and voltage variation. 4. Multi-unit linkage: multiple feeders run synchronously for automatic multi-component blending. 5. Traceable data: record real-time flow and total feeding weight for production quality inspection management. ## 四、主流分类 Main Types ### 1. 单螺杆失重秤 Single Screw Loss-in-weight Feeder **中文**：适配颗粒、低粉尘粉料，色母、添加剂主料配比，结构简洁易清洁。 **English**: Suitable for pellets and low-dust powder, masterbatch & additive proportioning, simple structure and easy cleaning. ### 2. 双螺杆失重秤 Twin Screw Loss-in-weight Feeder **中文**：针对超细粉、高蓬松粉料、易搭桥粉体，双螺杆强制送料杜绝断料、架桥。 **English**: Designed for ultra-fine powder, fluffy powder and bridging materials; twin screw forced conveying prevents material interruption and bridging. ### 3. 皮带式失重秤 Belt Loss-in-weight Feeder **中文**：适合大比重片状、块状物料、玻纤短切料，大流量粗配料场景。 **English**: For flake, block material and chopped glass fiber with high specific gravity, high-flow coarse compounding scenarios. ## 五、行业应用 Industry Applications ### 中文 - 塑胶挤出：PET瓶胚、薄膜、管材、改性造粒、3D打印耗材挤出； - 化工行业：粉体助剂、填充料、阻燃剂连续定量添加； - 食品医药：食品粉末、药用原料精准配料； - 新能源：锂电粉体、负极材料、硅粉计量输送。 ### English - Plastic extrusion: PET preform, film, pipe, modified pellet, 3D printing filament extrusion; - Chemical industry: continuous dosing of powder additives, fillers and flame retardants; - Food & pharmaceutical: precise batching of food powder and pharmaceutical raw materials; - New energy: metering & conveying of lithium battery powder, anode material and silicon powder. ## 六、关键配件 Key Components 中文 | English 称重传感器 | Load Cell 搅拌防架桥装置 | Agitator Anti-bridging Device 伺服/变频驱动 | Servo / Variable Frequency Drive PLC失重控制仪表 | Loss-in-weight PLC Controller 密封称重料斗 | Sealed Weighing Hopper 快速补料阀 | Fast Refilling Valve ## 七、常用技术参数常用话术（商务双语） 1. 计量精度：±0.3%静态，±0.8%动态 Metering accuracy: ±0.3% static, ±0.8% dynamic 2. 流量范围：0.1kg/h ~ 5000kg/h可调 Adjustable flow range: 0.1kg/h ~ 5000kg/h 3. 支持多组分联动配比 Support multi-component synchronous proportioning 4. 支持485/Modbus对接中央控制系统 Compatible with 485/Modbus for central control system connection 5. 整机不锈钢304材质，易拆洗 Full 304 stainless steel structure, easy disassembly and cleaning