US 12,594,737 B2 · Multi-purpose sealing module for plastic film based bags and pouches making machine

Abstract

Multi-purpose sealing module (20) for machine (10) to manufacture heat-sealed plastic film based bags comprises a servo motor driven common drive shaft (30) in keyed connection with eccentric cams (40a, 40b) and (50a, 50b) such that eccentricity is equal and in opposite directions. Crank arms (60a, 60b) are connected to the eccentric cams (40a, 40b) though bearings (80a, 80b) and through bearings (120a, 120b) to linear guide rods (100a, 100b). Linear guide rods (100a, 100b) are in rigid connection with upper seal beam (140). Crank arms (70a, 70b) are connected to the eccentric cams (50a, 50b) though bearings (90a, 90b) and through bearings (130a, 130b) to connecting rods (110a, 110b). Connecting rods (110a, 110b) are in rigid connection with lower seal beam (150). Movement of lower seal beam (150) is guided by linear guide rods (100a, 100b). Angular movement of common drive shaft (30) gives simultaneous linear movement in opposite directions to upper seal beam (140) and lower seal beam (150) controlling the gap between a sealing jaw connected to upper seal beam (140) and a sealing jaw connected to the lower seal beam (150). Seal time and seal pressure of sealing of plastic film based bags and pouches; and angular movement of the drive shaft (30) are controlled by a programmable controller.

Claims6

Dependent claims

A multi-purpose sealing module (20) for a machine (10) to manufacture heat-sealed plastic film based bags and pouches, comprising

a. a common drive shaft (30) driven by a servo motor or a pneumatic rotary actuator and in keyed connection with a first pair of eccentric cams (40 a, 40 b) and a second pair of eccentric cams (50 a, 50 b) such that eccentricity is equal and in opposite directions;
b. a first pair of crank arms (60 a, 60 b) connected to the first pair of eccentric cams (40 a, 40 b) though a first set of bearings (80 a, 80 b) and through a second set of bearings (120 a, 120 b) to linear guide rods (100 a, 100 b);
c. the linear guide rods (100 a, 100 b) in rigid connection with upper seal beam (140);
d. a second pair of crank arms (70 a, 70 b) connected to the second pair of eccentric cams (50 a, 50 b) though a third set of bearings (90 a, 90 b) and through a fourth set of bearings (130 a, 130 b) to connecting rods (110 a, 110 b);
e. the connecting rods (110 a, 110 b) in rigid connection with lower seal beam (150);
f. movement of the lower seal beam (150) guided by the linear guide rods (100 a, 100 b);
and
g. angular movement of the drive shaft (30) giving simultaneous linear movement in opposite directions to the upper seal beam (140) and the lower seal beam (150) controlling the gap between a sealing jaw connected to the upper seal beam (140) and a sealing jaw connected to the lower seal beam (150);
and seal time and seal pressure of sealing of plastic film based bags and pouches;
and angular movement of the drive shaft (30) controlled by a programmable controller.

7 more elements

A multi-purpose sealing module (220) for a machine (210) to manufacture heat-sealed plastic film based bags and pouches, comprising

a. a common drive shaft (230) driven by a servo motor or a pneumatic rotary actuator and in keyed connection with a first pair of eccentric cams (240 a, 240 b) and a second pair of eccentric cams (250 a, 250 b) such that eccentricity is equal and in opposite directions;
b. a first set of crank arms (260 a, 260 b) connected to the first pair of eccentric cams (240 a, 240 b) though a first set of bearings (280 a, 280 b) and through a second set of bearings (320 a, 320 b) to linear guide rods (300 a, 300 b);
c. the linear guide rods (300 a, 300 b) in rigid connection with front seal beam (340);
d. a second set of crank arms (270 a, 270 b) connected to the second pair of eccentric cams (250 a, 250 b) though a third set of bearings (290 a, 290 b) and through a fourth set of bearings (330 a, 330 b) to connecting rods (310 a, 310 b);
e. the connecting rods (310 a, 310 b) in rigid connection with rear seal beam (350);
f. movement of the rear seal beam (350) guided by the linear guide rods (300 a, 300 b);
and
g. angular movement of the drive shaft (230) giving simultaneous linear movement in opposite directions to the front seal beam (340) and the rear seal beam (350) controlling the gap between a sealing jaw connected to the front seal beam (340) and a sealing jaw connected to the rear seal beam (350);
and seal time and seal pressure of sealing of plastic film based bags and pouches;
and angular movement of the drive shaft (230) controlled by a programmable controller.

7 more elements

Dependencies are inferred from the claim text.

Multi-purpose sealing module for plastic film based bags and pouches making machine

Life of this patent

Multi-purpose sealing module for plastic film based bags and pouches making machine

Life of this patent

Abstract

Claims6