外阀口袋全自动上袋包装机是一种专为包装行业设计的自动化设备，主要用于高效地将产品自动装入外阀口袋（通常指带有滑动阀口的包装袋，便于内容物的排放且可重新密封）中。这类机器的工作流程大致包括以下几个步骤：

1. 袋子供给

：机器首先从袋子卷材或预制成型的袋子堆栈中自动取袋，并通过机械臂或吸盘精准定位，展开袋子准备填充。

2. 开袋与定位

：利用气动或机械装置打开袋子的阀口，确保袋子正确且稳定地定位在填充区域，准备接受产品。

3. 产品计量与填充

：根据产品特性（粉末、颗粒、液体等），采用不同的计量装置（如螺杆、重力、容积式填充机或称重系统）将产品精确计量并填充到袋子中。

4. 封口处理

：填充完毕后，机器会对阀口进行热封、粘合或其它形式的封闭处理，确保袋子密封性良好，防止泄露。

5. 排气与清洁

：部分机器还会包含排气系统，以排除袋内多余空气，减少体积，同时保持产品新鲜。在某些需要清洁切割的场合，还会有专门的清洁步骤避免污染。

6. 码垛与输送

：最后，装填和封口好的袋子会被自动传输到下一个工序，如码垛、贴标或直接装箱，完成整个包装流程。

这种设备的优势在于提高了生产效率，减少了人工操作的需要，降低了劳动成本，同时提升了包装的一致性和准确性，广泛应用于化工、食品、饲料、建材等多个行业的包装环节。

The automatic bagging machine for the outer valve bag is an automatic equipment specially designed for the packaging industry, which is mainly used to efficiently and automatically load products into the outer valve bag (usually refers to the bag with a sliding valve port, which is convenient for the discharge of the contents and can be resealed). The workflow of this type of machine generally consists of the following steps:

1. Bag feeding

The machine first automatically picks up the bag from the bag roll or the pre-formed bag stack and unfolds the bag for filling with precise positioning by means of a robotic arm or suction cup.

2. Opening and positioning

: Pneumatic or mechanical means are used to open the valve port of the bag, ensuring that the bag is correctly and stably positioned in the filled area, ready to accept the product.

3. Product measurement and filling

: Depending on the characteristics of the product (powder, granule, liquid, etc.), different metering devices (e.g. screw, gravity, volumetric filler or weighing system) are used to accurately measure and fill the product into the bag.

4. Sealing

After filling, the machine will heat seal, glue or other forms of sealing of the valve port to ensure that the bag is well sealed and prevent leakage.

5. Exhaust & Cleaning

Some machines will also include an exhaust system to remove excess air from the bag, reducing volume while keeping the product fresh. In some occasions where a clean cut is required, there will also be a special cleaning procedure to avoid contamination.

6. Palletizing and conveying

Finally, the filled and sealed bags are automatically transferred to the next process, such as palletizing, labelling or direct boxing, to complete the entire packaging process.

The advantage of this equipment is to improve production efficiency, reduce the need for manual operation, reduce labor costs, and improve the consistency and accuracy of packaging, which is widely used in the packaging links of chemical, food, feed, building materials and other industries.