| 摘要 |
PURPOSE:To provide a bag packing machine wherein heating time for a packing material can be lengthened without lowering the efficiency. CONSTITUTION:When a seesaw beam 59 is oscillated centrated on shaft 58 by a cam 57 on one side, a belt 64 is moved up and down and a pulley 61 is riversed. The motion of the pulley 61 is transmitted to a transmission shaft 45 through a spline shaft 55 having a slide relationship to the pulley 61, so as to rotate a bell crank 46. Thereby, upper and lower seal bars 36, 37 are approached or separated through links 47, 48. On the other hand, a lever 15 is oscillated by the rotation of a cam 14 on the other side, and a block 12 provided with the seal bar is reciprocated along a guide rod 11 in the same direction as that of a packing material 33. Accordingly, the cam 14 can make the return speed of the block 12 high, so that moving time can be obtained longer. |
