Auto strapping packaging tool having clamp fixing apparatus

Abstract

Provided is an auto strapping packaging tool having a clamp fixing apparatus including a body assembly, a tension module partially coupled to the body assembly and providing a tensile force to a plastic band using a first motor, a feed wheel part rotated by the first motor about a first shaft, and a clamp part disposed around the feed wheel part to be rotated about a second shaft, a welding module including a second motor and a third motor and providing a friction force to the plastic band to which the tensile force is applied by the tension module, a hooking part provided with a first hooking element axially rotatably disposed in the body assembly and a second hooking element fixedly disposed in the body assembly, and a lever unit axially rotatably coupled to the body assembly.

What is claimed is: 
     
         1 . An auto strapping packaging tool having a clamp fixing apparatus, comprising:
 a body assembly;   a tension module which is partially coupled to the body assembly and provides a tensile force to a plastic band using a first motor, a feed wheel part rotated by the first motor about a first shaft, and a clamp part disposed around the feed wheel part and rotated about a second shaft;   a welding module which includes a second motor and a third motor and provides a friction force to the plastic band to which the tensile force is applied by the tension module;   a hooking part provided with a first hooking element axially rotatably disposed in the body assembly and a second hooking element fixedly disposed in the body assembly; and   a lever unit which is axially rotatably coupled to the body assembly and switched to an open mode while a position thereof is fixed by being hooked on the first hooking element when a pulling operation of a user is applied thereto.   
     
     
         2 . The auto strapping packaging tool of  claim 1 , wherein in a process in which the lever unit is switched to the open mode, the clamp part is axially rotated around the feed wheel part to be opened. 
     
     
         3 . The auto strapping packaging tool of  claim 1 , wherein the lever unit includes:
 a lever body having a handle formed on one end thereof, and a shaft hole formed in the other end to be axially rotatable;   a first hooking piece which extends outward from the lever body and has a hooking step formed on an end portion thereof; and   an extension hooking member which is coupled to the other end of the lever body and released from hooking on the second hooking element when the lever unit is switched to the open mode.   
     
     
         4 . The auto strapping packaging tool of  claim 1 , wherein the tension module further includes an annular ring portion which is coupled to the feed wheel part to be rotated about the first shaft and has a first tooth formed on a part thereof and a protruding piece formed on another part thereof in a radial direction. 
     
     
         5 . The auto strapping packaging tool of  claim 4 , wherein a connecting piece having one end connected to an end portion of a lever shaft and the other end in which a second tooth engaged with the first tooth is formed is disposed between the lever unit and the tension module. 
     
     
         6 . The auto strapping packaging tool of  claim 1 , wherein the first hooking element includes a pressing button bar pressed by the user and coupled to the first hooking element so that the first hooking element is axially rotated. 
     
     
         7 . The auto strapping packaging tool of  claim 1 , wherein:
 the first hooking element has a cylindrical shape; and   a plurality of hooking steps disposed to be spaced apart from each other in one direction are formed on an outer circumferential surface of the first hooking element.   
     
     
         8 . The auto strapping packaging tool of  claim 1 , wherein the welding module includes:
 a friction providing unit which is disposed in the body assembly and linearly reciprocates due to second power generated by the second motor to provide the friction force to the plastic band to which the tensile force is applied by the tension module; and   an opening and closing unit which has one end coupled to the friction providing unit, performs link movement due to third power generated by the third motor to provide vertical movement for the friction providing unit, and opens or closes the friction providing unit through an operation according to axial rotation.