JPH0420426A - Deaerating device for packed bag - Google Patents

Abstract

PURPOSE:To stabilize the loading state of nonpermeable packed bags and prevent the collapse of a cargo by providing vacuum cups sucking the upper face of a packed bag through a presser pressing the packed bag from the above, and providing deaerating needles boring vent holes on the upper face of the packed bag in them. CONSTITUTION:Vacuum cups 44 sucking the upper face of a packed bag B through a presser 35 pressing the packed bag B from the above are provided, and deaerating needles 43 boring vent holes on the upper face of the packed bag B are provided in them. The presser 35 is lowered to press the upper face of the rice bag B while the rice bag B is stopped, a pair of vacuum cups 44 are lowered through opening sections 36 of the presser 35 into elastic contact with the upper face of the rice bag B via coil springs, the deaerating needles 43 in a pair of suction tubes 40 are protruded below the vacuum cups 44 by air cylinders 42 and stuck into the rice bag B, and vent holes are bored on the upper face of the rice bag B. After the deaerating needles 43 are lifted in the suction tubes 40, an exhaust device is operated, the vacuum cups 44 are sucked on the upper face of the rice bag B, and the air in the rice bag B is sucked out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to a bag filling deaeration device for removing excess air from the inside of a bag filling.

(Prior Art) When loading bags onto a pallet using a pallet loading device, the shape of the bags is adjusted using a shaping device that presses the bags from above. If the bag filling does not have air permeability, for example, if the bag filling is a rice bag in which polished rice is placed in a bag made of synthetic resin film and the opening of the bag is closed by heat sealing, it is not possible to simply reshape the rice bag. Since excess air remains inside the rice bags, there is a problem in that when rice bags are stacked one above the other in multiple tiers, the stacking condition is unstable and the loads are likely to collapse.

(Problems to be Solved by the Invention) As mentioned above, in the conventional case, when stacking non-breathable bags, the stacking condition becomes unstable due to excess air in the bags. However, there is a problem in that the cargo tends to collapse.

The present invention was created in view of the above, and aims to stabilize the loading condition of non-ventilated bags and prevent the cargo from collapsing by removing excess air from inside the bags. That is.

[Structure of the invention]

(Means for Solving the Problems) The bag filling deaeration device of the present invention includes a pressing body 35 that presses the bag filling B from above, and a pressing body 35 that is provided through the pressing body 35 to suck the upper surface of the bag filling B. The device is equipped with a vacuum cup 44 for opening the bag filling B, and a deaeration needle 43 provided inside the vacuum cup 44 to open a deaeration hole in the upper surface of the stuffed bag B.

(Function) The bag filling deaeration device of the present invention presses the bag filling B from above with the pressing body 35, opens a deaeration hole in the upper surface of the bag stuffing B with the degassing needle 43, and vacuums the bag stuffing through this deaeration hole. The air inside the stuffed bag B is sucked by the cup 44.

(Embodiment) An embodiment of the bag deaerator of the present invention will be described with reference to the drawings.

FIG. 7 shows a transfer device 1, which includes a main body 3 that is horizontally rotatable on a base 2.
A multi-joint arm mechanism 4 that can bend and extend in the vertical direction is provided, and a rotating body 6 that can rotate in the horizontal direction is provided at the bottom of the movable body 5 at the tip of the multi-joint arm mechanism 4. A pair of transfer baggage holding devices 7 are provided at the bottom, and each of the pair of transfer baggage holding devices 7 scoops out bag stuff from both sides with a plurality of L-shaped fingers 8 facing each other. , can hold and release bag fillings.

This transfer device 1 includes a pair of transfer cargo holding devices 7.
It is possible to hold the bag filling and move the bag filling from one position to another, and also to rotate the bag filling and change the direction of the bag filling freely, so it can be used as a pallet loading device. The bags are stacked in multiple stages on a pallet while configuring a predetermined stacking pattern.

Figures 3 to 6 show a rice bag B1 with no air permeability as a filling material for the transfer device 1, that is, milled rice is placed in a bag made of synthetic resin film and the opening of the bag is closed by heat sealing. It shows a conveyor line 11 that conveys the
This conveyor line 11 has a roller conveyor 13 connected to a belt conveyor 12, and the rice bags B are conveyed from the belt conveyor A-12 to the roller conveyor I3. When the baggage holding device 7 scoops up bag stuffing with its plurality of L-shaped fingers 8, each finger 8 is inserted between the rollers of the roller conveyor 13, and the bag stuffing is scooped out. ing.

And the belt conveyor 12 of the conveyor line 11
A shaping device 14 is provided in the middle of the body.

This shaping device 14 has support plates 15 erected on both sides of the belt conveyor 12, and a pair of support plates 15 on both sides.
A shaft 16 is horizontally mounted on the shaft 16, levers 17 are attached to both ends of the shaft 16, and one end of the pair of levers 17 on both sides is biased upward and the other end of the lever 17 is biased downward. Air cylinders 18 are provided on both sides of the belt conveyor 12, and a rotary presser 19 is horizontally suspended via a shaft 20 between the other ends of the pair of levers 17 that are urged downward. The rotary presser 19 has a structure in which a plurality of rollers 23 are arranged annularly between a pair of discs 22.

In this shaping device I4, the rotary presser 19 rotates in synchronization with the conveyance speed of the belt conveyor 12, and the rotary presser 19 rotates against the upper surface of the rice bag B moving on the belt conveyor 12. A plurality of rollers 23 are brought into contact with each other in order with a constant pressure due to the biasing force of the air cylinder 18, correcting the unevenness of the rice in the rice bag B, and removing the rice from the rice bag B.
It is designed to be flattened.

Further, a centering device 26 is provided at the tip of the belt conveyor 12.

This centering device 26 is provided with pusher plates 28, which are driven by air cylinders 27, facing each other on both sides of the belt conveyor 12, respectively.

When the rice bag B that has passed through the shaping device 14 moves to the tip of the belt conveyor 12, a photoelectric detector (not shown) detects the rice bag B, and this detection signal causes the belt conveyor 12 to stop. , In this state, the centering device 26 is activated.

In this centering device 26, when the rice bag B is stopped, a pair of butcher plates 28 on both sides are connected to the air cylinder 2.
7 advances toward the rice bag B on the belt conveyor 12 from both sides of the belt conveyor 12 and holds the rice bag B from both sides, thereby removing the rice bag B on the belt conveyor 12.
After this centering, the pair of butcher plates 28 on both sides are moved around the belt conveyor 12 by the air cylinders 27.
The belt conveyor 12 is designed to retreat from the center to both sides of the belt conveyor 12.

In addition, a deaeration device 31 is provided above the centering device 26.
is provided.

As shown in FIGS. 1 and 2, this deaerator 131 includes a support frame 32 provided on the belt conveyor 12, and an elevating frame 34 that is raised and lowered by an air cylinder 33 provided below the support frame 32. A suppressing plate 35 as a pressing body is provided horizontally at the lower part of this elevating frame 34, and openings 36 are formed in two places on this suppressing plate 35, and air cylinders 37 are used to raise and lower the upper part of each of the above two openings 36. A suction tube 40 is provided at the bottom of the pair of support plates 38 so as to be movable up and down via a guide rod 39, and the pair of suction tubes 40 are connected to the guide rod 39.
Further, three degassing needles 43 are provided at the inner lower part of the pair of suction cylinders 40 and are moved up and down by air cylinders 42, respectively. A vacuum cup 44 made of an elastic body is attached to each lower end,
The suppression plate 35 is raised and lowered together with the lifting frame 34 by the air cylinder 33, and the pair of vacuum cups 44 are moved up and down by the suction cylinder 40.
At the same time, the air cylinder 37 moves up and down with respect to the opening 36 of the press plate 35, and the degassing needle 43 moves up and down with the air cylinder 42 with respect to the vacuum cup 44. It is connected.

The deaerator 31 is activated after the rice bag B stopped at the tip of the belt conveyor 12 is centered by the centering device 26.

In this deaerator 31, when the rice bag B is stopped, the suppression plate 35 is lowered by the air cylinder 33 and presses the top surface of the rice bag B, and then the pair of vacuum cups 44 are suppressed by the air cylinder 37. It descends into the opening 36 of the plate 35 and comes into elastic contact with the upper surface of the rice bag B by the coil spring 41, and then the degassing needle 43 in the pair of suction cylinders 40 is moved to the lower part of the vacuum cup 44 by the air cylinder 42. protrudes into the rice bag B, and as a result, the rice bag B
A deaeration hole is provided on the top surface.

After the deaeration needle 43 is raised into the suction tube 40 by the air cylinder 42, the exhaust device is activated, and the vacuum cup 44 adsorbs the top surface of the rice bag B, sucking out the air inside the rice bag B. and suck it out.

Then, after a predetermined period of time has elapsed, the exhaust system stops and
The vacuum cup 44 releases the suction on the top surface of the rice bag B,
Next, the press plate 35 is raised by the air cylinder 33 and separated from the top surface of the rice bag B, and the pair of vacuum cups 44 are moved from the press plate 3 by the air cylinder 37.
5 and returns to its original state.

When the operation of the deaerator 31 is finished, the belt conveyor 12 is driven, and the rice bags B are conveyed from the belt conveyor 12 to the roller conveyor 13.

Further, a stopper mechanism 51 is provided at the tip of the roller conveyor 13.

This stopper mechanism 51 is provided with a stopper plate 53 at the tip of the roller conveyor 13 that is moved back and forth by an air cylinder 52.
The position of the stopper plate 53 is adjusted.

In this stopper mechanism 51, when the pair of transferred cargo holding devices 7 of the transfer device 1 shown in FIG.
Since the stopper plate 53 is inserted between the rollers of the roller conveyor 1 and scoops up the rice bag B, the stopper plate 53 must be inserted between the roller conveyor
It is positioned above the roller 3, and
A stopper plate 53 is supported by an L-shaped rod 54.

In this conveyor line 11, due to the above-described configuration, in the middle part of the belt conveyor 12,
The rice bag B is shaped flat by the shaping device 14, and then, while the rice bag B is stopped at the tip of the belt conveyor 12, the rice bag B is centered by the centering device 26, and then the rice bag B is shaped by the deaerator 31. After that, the rice bag B is sent from the belt conveyor 12 to the roller conveyor 12, and the rice bag B is positioned on the roller conveyor 12 by a stopper mechanism 51.

Then, when the pair of rice bags B are arranged on the roller conveyor 13, the transfer device 1 shown in FIG. Load the cargo in multiple stages on top of it.

Since excess air inside the rice bags B piled up during this loading is removed by the deaerator 31, the loading condition is stabilized and the bags are less likely to collapse.

[Effects of the Invention] As described above, according to the present invention, a deaeration hole is made in the upper surface of the stuffed bag using a deaeration needle, and air inside the stuffed bag is sucked through the deaeration hole by a vacuum cup. Occasionally,
Since the pressing body presses the stuffed bags from above, excess air can be quickly and reliably removed from inside the stuffed bags. It is possible to stabilize the loading condition and prevent the cargo from collapsing.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is a side view with a part of the deaerator in cross section, Fig. 2 is a front view with a part of the deaerator in cross section, and Fig. 3 shows the deaerator equipped with the deaerator. side view of the conveyor line,
FIG. 4 is a plan view thereof, FIG. 5 is a front view thereof, FIG. 6 is a sectional view showing the main parts thereof, and FIG. 7 is a side view of the transfer device. B... Rice bag as bag filling, 31... Deaerator, 35...
- Pressing plate as a pressing body, 43. Deaeration needle, 44. Vacuum cup.

Claims (1)

[Claims] (1) A pressing body that presses the bag stuffing from above, a vacuum cup that is provided through the pressing body to suck the top surface of the bag stuffing, and a deaeration hole that is provided inside the vacuum cup and that is provided on the top surface of the bag stuffing. A deaeration device for bag stuffing, characterized in that it is equipped with a deaeration needle that can be opened.