Injection Molding and Pressing Two Process Bottle Caps

Bottle caps are a detail that is often overlooked by consumers, but for manufacturers, this is a big problem. Mr. Li Keping of Italy's Jetflex has many years of research on bottle caps and cap moulds. “Manufacture of plastic caps looks simple, but the manufacture of plastic cap moulds has a very high level of expertise.” Jetflex is known for designing and manufacturing multi-cavity, high-precision, hot runner injection molds. In 2000, Jetfield developed a 64-cavity rapid-mold cap mold, and achieved a 3s opening and closing on the Nestal rapid injection molding machine, creating a world record for 64-cavity-grade cap mold opening and closing cycles. “Many manufacturers of plastic caps in Europe are seeking to reduce the weight of caps and increase productivity in order to reduce costs and increase market share while ensuring the physical function of the caps.” The company developed MIVA in response to market demand. Series bottle caps. Take MIWA L3P as an example, 28mm, only 1.5 ~ 1.6g, 1g lighter than the traditional PET bottle plastic cap, this cap can be opened as long as the rotation 90 °, opening torque is low, suitable for young and old. At present, there are seven sets of 64-cavity cap molds provided by Jaffit Corporation for use in the Wahaha Group. Jetflex also invented a patented technology for non-rotating two-shot injection molds for the single-use production of liner caps. This invention greatly saves the investment in the production equipment of the capped bottle cap. Conventional production of padded caps is achieved by injection caps, injection or dis- placement devices, and assembly equipment. With Jaffier's two-shot injection molds, adding an injection unit to the original injection machine is a breeze. The realization of the production of cushioned caps.

Sacmi SACMI's pressed cap is another technology. Unlike traditional injection caps, it is the first mechanical manufacturer to bring press-molded capping equipment to market. The Sacmi rotary hydraulic press makes the mold simple, so the investment cost required for compression molding is far less than the injection molding cost. Since Sacmi completely designs and manufactures plastic cap moulds at the same time, it has a greater overall advantage. According to Sacmi's introduction, this pressed bottle cap is very suitable for the production of round caps. Sacmi exhibited 600/min cappers at the ProPak in July, but their fastest products reached 1200/min, and 7 of them are currently sold.

Injection molding and pressing of bottle caps represent two different processes. The former can buy various molds, perform a flexible design, and can design relatively complex lids, but the cost of the molds is higher; and the pressing of bottle caps is relatively low cost.

Bericap is a German family-owned company that specializes in bottle caps. It has 18 subsidiaries and has sales of 310 million euros in 2003. The Kunshan company in China was established in 1998. In China, it mainly supplies 30/25 and PCO 28-mouth caps, 38mm, 48mm and five-gallon Tamper Evident caps. And functional caps (such as bottled water anti-theft caps). It produces approximately 900 million 30mm bottle caps for the "non-carbonated drinks" industry in China. The current "Ballige Service Pack" is a new form of packaging that has been studied together with users and has gone far beyond the design of standard bottle caps. For example, in the 38mm hot filling field, the SK 38/16 DoubleSeal hot fill bottle cap is the ideal solution for large-scale equipment for efficient filling.

Taiwan Yanxin is a company affiliated to the Master Kong Group. It is also an expert in food and beverage packaging caps and preforms. Its innovative KingCan caps can be used for various refillable or non-recyclable daily packaging such as glass bottles and plastic bottles. Cartons and metal containers are available with caps, as well as a variety of caps with or without gaskets; colors can be varied, with monochrome to 4-color top printing or embossed to facilitate branding; and PET bottle mouth provides patented inner plug seal cap design and manufacturing

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DongGuan FeiYang Packaging Machinery Equipment Co., Ltd , http://www.feiyang-machinery.com