| 摘要 |
A method and apparatus for constructing a dispensing end portion of a cartridge used to hold and dispense food sauce. A flat end disk (18) is held in a transfer pocket (26) and moved by a disk punch (28) through a die opening (36,38) smaller in diameter than the disk. The die (32,34) bends the peripheral portion of the disk into a skirt (48). The disk punch (28) inserts the disk into the open end (16) of a cartridge body (10) and against a mandrel (42) positioned so that an end portion of the cartridge body extends beyond the skirt. Heat is applied to melt thermoplastic coatings (14, 20) on the disk and cartridge body. A crimping device (62,64) crimps the end portion of the cartridge into a flange (68) which is bent against the disk and folds the skirt to form a lip (70) doubled over on the peripheral area of the disk. Thermoplastic coatings bond to weld the flange to the disk with the lip enclosed between them. |
