Vacuum packing machine

Abstract

A vacuum packing machine includes: a lower housing; an upper housing hinge-coupled with the lower housing to be rotationally opened and closed; a heating wire part for vacuum-packing mounted at an end of an upper side of the lower housing to carry out vacuum-packing; a pressing part mounted at a position where it coincides with the heating wire part at the end of the upper face of the upper housing; a gas intake tube mounted within the heating wire part inside the lower housing and inhaling and discharging gas; a tube driving part for progressing and reversing the gas intake tube; a suction pump mounted inside the lower housing and connected with the gas intake tube to inhale gas; a lower sealing member located on the upper side of the lower housing and mounted within the heating wire part; and a control unit.

What is claimed is: 
     
         1 . A vacuum packing machine comprising:
 a lower housing;   an upper housing which is hinge-coupled with the lower housing to be rotationally opened and closed;   a heating wire part for vacuum-packing which is mounted at an end of an upper side of the lower housing to carry out vacuum-packing by applying heat to a vacuum packing bag;   a pressing part which is mounted at a position where it coincides with the heating wire part at the end of the upper face of the upper housing, and which presses the vacuum packing bag in the direction of the heating wire part;   a gas intake tube which is mounted within the heating wire part inside the lower housing and inhales and discharges gas after passing the heating wire part and going into the inside of the vacuum packing bag;   a tube driving part for progressing and reversing the gas intake tube;   a suction pump which is mounted inside the lower housing and connected with the gas intake tube to inhale gas;   a lower sealing member which is located on the upper side of the lower housing and mounted within the heating wire part to press and seal an inlet of the vacuum packing bag in a state where the gas intake tube is interposed;   an upper sealing member which is located on the lower side of the upper housing and mounted at a position where it coincides with the lower sealing member to press and seal the inlet of the vacuum packing bag in the state where the gas intake tube is interposed; and   a control unit which moves the position of the gas intake tube to a gas inhalation position and a sealing position and controls the tube driving part, the suction pump and the heating wire part to inhale and discharge the inside gas of the vacuum packing bag so that the vacuum packing bag is vacuum-packed.   
     
     
         2 . The vacuum packing machine according to  claim 1 , wherein the vacuum packing bag has a flat surface. 
     
     
         3 . The vacuum packing machine according to  claim 2 , wherein the gas intake tube has a streamlined cross section. 
     
     
         4 . The vacuum packing machine according to  claim 2 , wherein the gas intake tube has a frictional force falling layer formed on the surface thereof. 
     
     
         5 . The vacuum packing machine according to  claim 1 , wherein the tube driving part comprises:
 a moving guide for guiding a horizontal moving route of the gas intake tube;   a driving plate spring connected and mounted to an end of the moving guide to progress and reverse the gas intake tube along the moving guide; and   a driving motor on which the driving plate spring is wound and which rotates the driving plate spring to progress and reverse the gas intake tube.   
     
     
         6 . The vacuum packing machine according to  claim 1 , wherein the pressing part is elastically connect in the inward direction of the upper housing to move vertically. 
     
     
         7 . The vacuum packing machine according to  claim 5 , wherein the control unit comprises:
 a first sensor mounted at an end of the plate spring side of the moving guide to sense the shortest movement position of the gas intake tube;   a second sensor mounted at an outer end of the moving guide to sense the longest movement position of the gas intake tube; and   a microprocessor for controlling the driving motor, the suction pump and the heating wire part based on information sensed by the first and second sensors.   
     
     
         8 . The vacuum packing machine according to  claim 7 , wherein the control unit further comprises a position control part for controlling front and rear operation positions of the gas intake tube. 
     
     
         9 . The vacuum packing machine according to  claim 1 , further comprising:
 a tightening part which is mounted at the upper housing and the lower housing in order to closely press the upper sealing member and the lower sealing member.