JP2012136293A5 - - Google Patents

Description

The present invention is a belt for placing a packaging bag filled with an article to be packaged on a rotating belt, and a vacuum chamber is in close contact with the rotating belt from above the packaging bag, and the packaging bag is vacuum-packed with a negative pressure inside the chamber. In the type vacuum packaging machine, in the width direction of the rotating belt, a seal stand for sealing the bag mouth is disposed, and along the longitudinal direction of the seal stand, the bag mouth presser bar is pivotally supported rotatably. A reverse prevention guide is provided on the carry-out side of the rotating belt to guide the passage in a posture in which the bag mouth holding bar is closed on the seal base side.

The present invention is a belt for placing a packaging bag filled with an article to be packaged on a rotating belt, and a vacuum chamber is in close contact with the rotating belt from above the packaging bag, and the packaging bag is vacuum-packed with a negative pressure inside the chamber. In the type vacuum packaging machine, in the width direction of the rotating belt, a seal stand for sealing the bag mouth is disposed, and along the longitudinal direction of the seal stand, the bag mouth presser bar is pivotally supported rotatably. An inclined plate that slides down the packaging bag after vacuum packaging to the carry-out chute side is fixed on the rotary belt in the vicinity of the seal stand, and the bag mouth holding bar is closed to the seal stand side on the carry-out side of the rotary belt. An anti-reversal guide that guides the passage in a posture is provided.

Therefore, when the inclined plate operating mechanism 21 is provided also on the driving roller 2 side and the inclined plate 9 reaches the circumferential portion of the driving roller 2, the follower lever 24 is pushed up by the cam 22 in the radially outward direction of the driving roller 2. Then, the downstream end of the fixed piece 9B of the inclined plate 9 is pushed up, and the free end 9A is opened with a larger angle between the free end 9A of the inclined plate 9 and the bar-shaped upper portion 10A of the bag mouth holding rod 10 with a larger angle. The circumferential portion of the drive roller 2 is allowed to pass while maintaining a gap between the upper portion 10A and the rod-shaped upper portion 10A. Thereby, the bag mouth 7 can be reliably pulled out from the bag mouth presser bar 10.

DESCRIPTION OF SYMBOLS 1 Rotating belt , 2 Drive roller , 3 Vacuum chamber , 5 Seal stand , 6 Upper seal part , 7 Bag mouth , 8 Packaging bag , 9 Inclined plate , 9A Free end , 9B Fixed piece , 10 Bag mouth holding stick , 10A Rod-shaped Upper part , 11 Unloading chute , 13 Rotating locus , 15 Both ends , 16 Bag support plate , 17 Inversion prevention guide , 18 Body frame , 21 Inclined plate operation mechanism

Claims (5)

A belt-type vacuum packaging machine that places a packaging bag filled with an article to be packaged on a rotating belt, and a vacuum chamber is brought into close contact with the rotating belt from above the packaging bag, and the packaging bag is vacuum-packed with a negative pressure inside the chamber. A sealing base for sealing the bag mouth in the width direction of the rotating belt, and a bag mouth pressing rod is pivotally supported along the longitudinal direction of the sealing base to carry out the rotating belt. A belt type vacuum packaging machine characterized in that, on the side, a reversal prevention guide is provided for guiding the bag mouth holding rod in a posture closed to the seal base side. A belt-type vacuum packaging machine that places a packaging bag filled with an article to be packaged on a rotating belt, and a vacuum chamber is brought into close contact with the rotating belt from above the packaging bag, and the packaging bag is vacuum-packed with a negative pressure inside the chamber. A sealing base for sealing the bag mouth is disposed in the width direction of the rotary belt, and a bag mouth pressing rod is pivotally supported along the longitudinal direction of the sealing base, Adjacent, a sloping plate that slides down the packaging bag after vacuum packaging to the carry-out chute side is fixed on the rotating belt, and the bag mouth holding bar is closed on the seal stand side on the carry-out side of the rotating belt, and the passage guide A belt-type vacuum packaging machine provided with a reverse prevention guide. A bag support plate for positioning the bag bottom side of the packaging bag is provided at a predetermined interval from the seal stand of the rotating belt, and the height of the bag support plate is taken out to the carry chute side. 3. The belt-type vacuum packaging machine according to claim 1, wherein the height is set to be higher than the height of the upper surface of the bag bottom where the bag bottom of the packaging bag is lifted. Control that rotates the rotation speed of the rotating belt and immediately decelerates the rotating belt immediately before the inclined plate comes close to the carry-out chute, thereby sliding the packaging bag onto the carry-out chute by inertia. The belt-type vacuum packaging machine according to claim 1 or 2, further comprising means. Push the downstream side of the fixed piece of the inclined plate to the carry-out side drive roller of the rotating belt, and open a gap with a larger angle between the free end of the inclined plate and the upper part of the bag mouth pressing bar. A tilting plate operating mechanism for holding the tilting plate, which pushes up the upstream side of the fixed piece of the tilting plate to the driven roller of the rotating belt and prevents the upper portion of the bag mouth pressing bar from biting into the free end of the tilting plate. The belt-type vacuum packaging machine according to claim 2, further comprising an operation mechanism .