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HEAT SEAL APPARATUS, BAG MACHINE, BAG EDGE FORMING APPARATUS, AND BAG SEAL MACHINE HAVING REPOSITIONABLE SEAL BAR ANVIL
HEAT SEAL APPARATUS, BAG MACHINE, BAG EDGE FORMING APPARATUS, AND BAG SEAL MACHINE HAVING REPOSITIONABLE SEAL BAR ANVIL
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机译:带有可更换密封条的热密封装置,制袋机,制袋边缘成型装置和制袋机
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摘要
An apparatus is provided for forming bag edges in a layered plastic film. The apparatus includes a heated seal bar and a seal bar anvil. The seal bar anvil has a resilient tube configured to deform as the seal bar is driven into the tube to seal and sever a bag edge therebetween. According to one construction, the resilient tube is pressurized pneumatically from the inside so as to impart a specific, desired resilience to the tube as the tube and seal bar co-act on either side of the layered plastic film.
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