초록 ▼

New method and apparatus for automatically producing a number of bag-shaped packages with a cap body integrally attached thereto and specific content filled at a high operational efficiency are disclosed. They are produced one by one using continuous thin flat film of synthetic resin as raw material

New method and apparatus for automatically producing a number of bag-shaped packages with a cap body integrally attached thereto and specific content filled at a high operational efficiency are disclosed. They are produced one by one using continuous thin flat film of synthetic resin as raw material by way of the steps of punching a cap body insert hole, inserting the cap body portion of the cap body into the punched hole, heat sealing it to the film, forming a tubular product, effecting longitudinal heat sealing, effecting transverse heat sealing of the lower end part of the tubular product to form a bag-shaped product, filling the latter with specific content, effecting transverse heat sealing of the upper end part of the content filled bag-shaped product and cutting off the latter along the center line extending between the adjacent products. Longitudinal heat sealing is generally effected while the film is displaced downward. Alternatively, longitudinal heat sealing may be effected while it is held immovably. Operation in each of the working sections is controlled by signals transmitted from a sensor adapted to detect the existence of one of marks printed on the film. Most of operations in the working sections are carried out while the film is held immovably.

대표청구항 ▼

An apparatus for producing bag-shaped packages respectively with a cap body and filled with fluid content from an elongated thin film of synthetic resin which comprises: a film supplying section having a film roller for feeding said film with marks at intervals defining respectively package forming

An apparatus for producing bag-shaped packages respectively with a cap body and filled with fluid content from an elongated thin film of synthetic resin which comprises: a film supplying section having a film roller for feeding said film with marks at intervals defining respectively package forming areas; a horizontally conveying section for said film from said film supplying section, said horizontally conveying section including a punching means for punching out a hole in said film one by one at each package forming area, a cap body feeding means for successively fitting cap bodies having a flange into each punched hole by passing a cap body through each punched hole and a cap securing means for heat sealing of said flange of said cap body to said film; said horizontally conveying section further including a pair of film holder means between which are provided at least said cap body feeding means and said cap securing means for intermittently holding said film stationarily and means to open and close said holder means; a sensor means for detecting said marks of said film for controlling the opening and closing of said film holder means; and a vertically downwardly conveying section adapted to convey said film secured with said cap bodies at respective package forming areas vertically downwardly, said vertically downwardly conveying section including a longitudinal heat sealing means for shaping said film into tubular form, a transverse heat sealing means for making bottom and top sealing lines on said tubular film at respective package forming areas, a content supplying means for supplying fluid content to said tubular film after formation of said bottom sealing line, a driving means for downwardly sending the shaped package after forming the upper sealing line by said transverse heat sealing means when said holding means are open, and a cutting means for cutting along respective transverse sealing lines.