Timing controller and packaging machine incorporating same
AssigneeIshida Co., Ltd.
InventorsYukio Nakagawa, Masashi Kondo
Life of this patent
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Abstract
A vertical pillow type form-fill-seal packaging machine with transverse sealers incorporates a timing controller for adjusting the timing for clamping a tubularly formed film with the sealers such that articles being dropping in to be packaged will not be caught in between. A display device displays a time axis or parallel axes. along which markers indicate the times of arrival of the falling articles to be packaged and the sealers at the clamping position for the sealers. As the user moves the marker for indicating the arrival time of the sealers, the timing controller adjusts the operating mode of the sealers such that the sealers will clamp the film at the time specified by the user according to the displayed time of arrival of the articles.
Claims11
A packaging machine disposed below article dropping means for intermittently dropping a batch of articles to be packaged, said packaging machine comprising:
- film transporting means for bending an elongated film into a tubular form and transporting said tubularly formed film in a longitudinal direction;
- a longitudinal sealer for sealing side edges of said tubularly formed film together in said longitudinal direction;
- a pair of transverse sealers for clamping said longitudinally sealed film therebetween transversely to said longitudinal direction at a clamping position to produce a bag;
- controlling means for controlling motion of said transverse scalers;
- and
- a display device displaying markers indicative of a transverse sealer arrival time at which said sealer controlled by said controlling means will arrive at a specified position and an article arrival time immediately before articles will arrive at said specified position;
- start-indicating means for indicating a starting time;
- delay time setting means for setting a delay time between said starting time and a clamping time when said transverse sealers clamp said longitudinally sealed film;
- sealer controlling means for causing said transverse sealers to move from specified initial positions so as to reach said clamping position in said delay time;
- and
- memory means for storing a falling time taken by articles dropped by said article dropping means to reach said clamping position from a specified starting position;
- wherein said delay time is set shorter than said falling time such that said transverse sealers clamp said film before said dropped articles reach said clamping position.
Dependencies are inferred from the claim text.