The packaging process of plastic bags is related to the bag type, bag making method, and packaging equipment used for packaging materials. Different types of plastic bags have different packaging processes, and the automation level of packaging equipment also varies. According to the type of plastic bag, it can be divided into large bag packaging process and small bag packaging process, including express delivery bags.

目前，手工操作和半自動操作因生產(chǎn)效率低， 般只適合下手工作坊、小型工廠包裝生產(chǎn)用。全自動操作從取袋到包裝件檢驗等工序均由機械完成，工作效串高，被大型生產(chǎn)企業(yè)采用。大塑料袋裝袋工藝的主要環(huán)節(jié)是充填和封口。充填方法與要充填的物料類型及流動性有關(guān)，所以在充填時應根據(jù)不同物料及流動性選擇相應的充填方法。

At present, manual and semi-automatic operations are generally only suitable for packaging production in manual workshops and small factories due to their low production efficiency. The fully automatic operation from bag picking to packaging inspection is completed by machinery, with high work efficiency, and is adopted by large production enterprises. The main process of bagging large plastic bags is filling and sealing. The filling method is related to the type of material to be filled and its fluidity, so the corresponding filling method should be selected based on different materials and fluidity during filling.

大袋裝袋工藝。大塑料袋集要充填重型貨物， 極為化工原料、糧食調(diào)料、水泥化肥等。根據(jù)其機械化程度可分為手丁操作.半自動化操作和全自動操作。其主要袋裝工藝為：取袋一開袋口一充填一封口。

Large bag packaging process. Large plastic bags need to be filled with heavy goods, such as chemical raw materials, grain seasoning, cement and fertilizers. According to its degree of mechanization, it can be divided into manual operation, semi-automatic operation, and fully automatic operation. The main bagging process is: taking the bag, opening the bag opening, filling, and sealing.

封口是塑料大袋包裝的一個左要工序。開口塑料袋用熱封法封R5編織袋多用縫合機縫合閥門袋具有自折疊封合閘管，呀用手]—折疊后封合，也可采用光將閥管閉合冉折疊封分。開口袋因承重太重，所以射門時一般不采用熱封，多用縫緩機封門，一般是用于授住袋門兩角，直接通過繼袋機進行縫合。為了增加封口的強度，叮在袋D6n吸板或耐撕裂材料后再縫合。此外，也14在制袋時，在袋n涂敷熱熔性站合劑，封n時在熱封裝置小加熱、然后折疊加壓封合或在生產(chǎn)線上施肋加壓射u。

Sealing is a crucial process in the packaging of large plastic bags. Open plastic bags are sealed using the heat sealing method. R5 woven bags are commonly sewn with a sewing machine. The valve bag has a self folding sealing gate tube, which can be folded and sealed by hand. The valve tube can also be folded and sealed by light. Due to the heavy load on the opening pocket, heat sealing is generally not used when shooting, and a sewing machine is often used to seal the door. It is usually used to hold the two corners of the bag door and sew directly through the bag relay machine. In order to increase the strength of the seal, it should be sewn on the D6n suction plate or tear resistant material of the bag. In addition, during bag making, a hot melt station agent is applied to bag n. When sealing, a small heat is applied to the heat sealing device, and then folded and pressurized for sealing or ribbed and pressurized for injection on the production line.

縫合式封口方法1堅固又經(jīng)濟，適應性強.縫合式封口的線跡呈錐形，抽線開口極為方便。封n速度也比融結(jié)太高。但因縫合時有針眼，防濕、防漏方面不如渤結(jié)式封口好。

Suture sealing method 1 is sturdy, economical, and highly adaptable. The stitching of the suture is conical, and the opening for thread extraction is extremely convenient. The speed of sealing n is also too high compared to melting. However, due to the presence of needle holes during stitching, moisture and leakage prevention are not as good as the Bojie type seal.

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