Strapping tool

Abstract

A strapping tool has a press unit. The press unit includes a servo and an axle. The servo has an output shaft. The output shaft is connected to a connecting shaft. The connecting shaft is connected to one side of the axle. The output shaft, the connecting shaft and the axle are rotated simultaneously. Another side of the axle is integrally formed with an eccentric shaft. The eccentric shaft is fitted with a shaft seat. A press block is pivotally connected to the shaft seat. When in use, the servo lifts the press block for a packing strap to pass therethrough or lower the press block to press against the packing strap. The strapping tool has the effect of improving the quality and efficiency of packaging operations.

What is claimed is: 
     
         1 . A strapping tool, comprising a body, the body including a reeling unit, a cutting unit and a press unit, the press unit including a press plate, the press plate being fixed to a bottom of the body and extending outward; characterized by:
 the body including a grip portion and a mounting portion, a button being provided on the grip portion, the mounting portion being equipped with a power unit;   the press unit including a servo and an axle, the servo being electrically connected to the button, the servo having an output shaft, the output shaft being connected to a connecting shaft, the connecting shaft being connected to one side of the axle, the output shaft, the connecting shaft and the axle being rotated simultaneously, another side of the axle being integrally formed with an eccentric shaft, the eccentric shaft extending outward, the eccentric shaft being fitted with a shaft seat, a press block being pivotally connected to the shaft seat.   
     
     
         2 . The strapping tool as claimed in  claim 1 , wherein when the button is pressed to start the servo to rotate the output shaft, the press block is lifted to move away from the press plate; when the button is released, the servo rotates the output shaft to lower the press block for the press block to press against a packing strap. 
     
     
         3 . The strapping tool as claimed in  claim 1 , wherein the servo is an actuator. 
     
     
         4 . The strapping tool as claimed in  claim 1 , wherein an axle seat is provided on the press plate, the axle seat has an axle hole, and the axle is inserted in the axle hole. 
     
     
         5 . The strapping tool as claimed in  claim 1 , wherein the cutting unit includes a blade tube and a blade shaft, the blade shaft is inserted in the blade tube, the servo further includes a linking member, the linking member is connected to the blade shaft, and the servo drives the blade shaft to rotate. 
     
     
         6 . The strapping tool as claimed in  claim 5 , wherein the linking member has a first linking ring, a second linking ring and a connecting rod, the first linking ring is sleeved on the connecting shaft, the second linking ring is sleeved on a fixed end of the blade shaft, the first linking ring and the second linking ring are pivoted at two ends of the connecting rod respectively, such that the connecting shaft, the first linking ring, the connecting rod, the second linking ring and the blade shaft are driven to rotate together. 
     
     
         7 . The strapping tool as claimed in  claim 5 , wherein when the button is pressed, the servo rotates the blade shaft to cut a packing strap and lifts the press block to release the packing strap.