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US 10,472,112 B2Granted
Thermoform packaging machine with strip punch unit
AssigneeMultivac Sepp HaggenmüLler SE & Co. KG
InventorElmar Ehrmann
Life of this patent
Estimating the term…
Abstract
The present invention relates to a thermoform packaging machine comprising a film punch unit that includes a stroke drive for moving a die and a punch. The die and punch are movable, by means of the stroke drive, towards and away from each other orthogonally to a film conveying plane. The stroke drive is arranged above the film conveying plane.
Claims19
A thermoform packaging machine comprising:
- a film punch unit including a die and a punch;
- a motor for simultaneously moving the die and the punch during a working cycle of said film punch unit, said motor operable to simultaneously move the die and the punch towards each other such that the die and the punch engage to cut a film with a first driving movement of the motor in a first portion of a working cycle of said film punch unit, and said motor operable to simultaneously move the die and the punch away from each other with a second driving movement of the motor to define clear distance to allow an advance of said film in a second portion of said working cycle of said film punch unit, wherein the movement of the die and the punch is orthogonal to a film conveying plane;
- a first stroke mechanism operably connecting the motor to the punch;
- and
- a second stroke mechanism operably connecting the motor to the die;
- wherein the motor is disposed above the film conveying plane and one of the punch or the die are disposed below the film conveying plane.
3 more elements
A thermoform packaging machine comprising:
- a packaging film feeding device to convey a packaging film in a film conveying plane;
- a film punch unit including a die and a punch;
- a single drive device that generates a driving power for simultaneously moving the die and the punch during a working cycle of said film punch unit to engage each other to cut the packaging film, wherein the single drive device is disposed above the film conveying plane;
- a first stroke mechanism comprising a first mechanical linkage, a first end of the first stroke mechanism is operably connected to the single drive device and a second end of the first stroke mechanism is operably connected to one of the die or the punch for transmitting the driving power of the single drive device to the one of the die or the punch to result in a first linear movement;
- and
- a second stroke mechanism comprising a second mechanical linkage, a first end of the second stroke mechanism is operably connected to the single drive device and a second end of the second stroke mechanism is operably connected to the other one of the die or the punch for transmitting the driving power of the single drive device to the other one of the die or the punch to effectuate a second linear movement, and wherein the other one of the die or the punch is disposed below the film conveying plane;
- said single drive device operable to simultaneously move the die and the punch towards each other to cut the packaging film with a first driving movement of the single drive device in a first portion of the working cycle of said film punch unit, and said single drive device operable to simultaneously move the die and the punch away from each other with a second driving movement of the single drive device to position said die and the punch to allow an advance of said packaging film during a second portion of said working cycle of said film punch unit, and wherein the movement of the die and the punch in the first and second portions of the working cycle of the film punch unit is orthogonal to the film conveying plane.
4 more elements
Dependencies are inferred from the claim text.