方便袋是一种使用广泛的包装袋，主要生产工艺是吹塑，吹塑工艺的质量直接影响到后续的制造环节，因此吹塑效果非常重要。吹塑的作用是将塑料颗粒制成塑料薄膜，然后由制袋机进行进一步加工切割，制成我们常见的方便袋。下面是方便袋吹塑的大致过程：

Convenience bags are a widely used packaging bag, and the main production process is blow molding. The quality of the blow molding process directly affects the subsequent manufacturing process, so the blow molding effect is very important. The function of blow molding is to make plastic particles into plastic films, which are then further processed and cut by a bag making machine to make our common convenient bags. The following is the general process of blow molding convenience bags:

吹塑是将塑料颗粒通过吹塑机吹成塑料薄膜。这个过程是将塑料颗粒倒入吹塑机的进料口，加热材料，使其融化成一个熔体。将熔融塑料在螺杆挤出机中定量挤出，然后通过口膜成型，压缩空气注入到型腔中，再通过风环吹冷却。被拖拉机以一定的速度牵引后，由卷扬机卷成一卷。吹制后进一步加工，得到各种方便袋。

Blow molding is the process of blowing plastic particles into a plastic film through a blow molding machine. This process involves pouring plastic particles into the feed port of the blow molding machine, heating the material to melt it into a melt. Molten plastic is quantitatively extruded in a screw extruder, then molded through a mouth film, compressed air is injected into the mold cavity, and then cooled by an air ring blowing. After being pulled by the tractor at a certain speed, it is winded into a roll by the winch. After blowing, further processing is carried out to obtain various convenient bags.

1.原材料制备：济南方便袋的主要原材料是聚乙烯（PE），其次是聚丙烯（PP），这两种材料需要进行配料、混合、熔融等预处理过程。

1. Preparation of raw materials: The main raw material for Jinan convenience bags is polyethylene (PE), followed by polypropylene (PP). These two materials require pre-treatment processes such as batching, mixing, and melting.

2.注塑成型：将预处理好的原料注入吹塑机的料斗中，然后通过加热和压力，使原料熔融并流入吹塑模具中。

2. Injection molding: Inject pre processed raw materials into the hopper of the blow molding machine, and then melt the raw materials and flow into the blow molding mold through heating and pressure.

3.吹塑成型：在模具内加入高压气源，将模具内的熔融塑料挤出，并根据模具的形状进行吹塑成型。

3. Blow molding: Add a high-pressure air source to the mold, extrude the molten plastic inside the mold, and perform blow molding according to the shape of the mold.

4.冷却成型：吹塑成型完成后，方便袋需要进行冷却成型，使其结构更加稳定。

4. Cooling forming: After the completion of blow molding, the convenience bag needs to be cooled and formed to make its structure more stable.

5.印刷、裁剪、封口：根据客户要求和生产需求，对成型的方便袋进行印刷、裁剪和封口等后续处理。

5. Printing, cutting, and sealing: According to customer requirements and production needs, the formed convenience bags are printed, cut, and sealed for subsequent processing.

6.检查合格后装箱：品质检验合格后，将方便袋装入指定的包装箱中，并进行包装、码垛等处理。

6. Packing after passing the inspection: After passing the quality inspection, the convenience bag will be placed in the designated packaging box and processed for packaging, stacking, etc.

总之，方便袋的吹塑成型是一个比较复杂的过程，需要相应的生产经验和技术支持，才能生产出质量稳定、成型精度高的方便袋产品。更多相关内容就来我们的网站http://www.sztensun.com咨询！

In short, the blow molding of convenience bags is a relatively complex process that requires corresponding production experience and technical support in order to produce stable quality and high molding accuracy convenience bag products. For more relevant content, come to our website http://www.sztensun.com consulting service