Blow Molding for Hollow Container Production

Eco-friendly packaging material that releases gas without tearing or contamination, and a manufacturing process that reduces complexity, shortens time, increases productivity, and lowers costs. The packaging has sealing sections on opposite sides and a curved section with a cutout in between. This forms an internal space with an airflow path. The cutout allows gas to escape when contents expand. The manufacturing involves stacking fabrics, aligning centers, simultaneous vertical sealing/punching, cutting, and horizontal sealing.

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Forming apparatus and method for producing plastic containers with more accurate control over the blow molding process. The apparatus has a blow mold with adjustable stroke limiting means for the bottom portion. This allows customizing the mold movement path during expansion. A detection unit measures bottom motion to further optimize traversing. The adjustable stroke limits and motion sensing provide better control compared to fixed mold motion.

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Flexible pouch production method for medical applications using thermoplastic materials like polyurethane without plasticizers that migrate into the contents. The method involves molding an annular insert around a blow mold, coating it with hot thermoplastic, and injecting gas into the mold to expand the thermoplastic around the insert. This creates a flexible pouch inside the mold without needing welding or cutting. The pouch can be filled with liquid or gel after expansion. The molded pouch can have multiple branches with separate inserts to make multi-compartment pouches. The blow mold can also have rotatable inserts that screw on and off.

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Blowing and stretch-blowing machine for containers with independent motorized opening and closing of the molds. The machine has a blowing or stretch-blowing mold with a separate motorized actuation mechanism to open and close the half-molds and bottom plate. This is different from conventional machines that use cams to synchronize mold opening/closing with other device movements. The independent motorized actuation allows more versatility and flexibility in mold opening/closing patterns without needing to replace cams. It also eliminates complex mechanical transmission systems and cams that wear and require maintenance.

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