JPH08230849A - Cutting and collecting method and device of binding string - Google Patents

Abstract

PURPOSE: To safely and securely collect binding strings cut off, by ejecting air from the upper part of a suction hood on cutting binding strings to generate a suction stream from the suction opening positioned at the lower part of the suction hood. CONSTITUTION: Binding strings B wound up on the periphery of an assembly of articles A are cut off by a cutting mechanism 1 of the strings. The binding strings B cut off are sucked and collected from the suction opening 4 of a suction hood 3 in a sucking and collecting mechanism 2. In this time, the suction hood 3 is moved close to the side face of binding strings B or far therefrom and air is elected from an air-jet nozzle 5 from the upper part of the suction hood 3 toward the suction opening 4, on cutting off the binding strings to generate a suction stream from the suction opening 4 positioned at the lower part of the suction hood 3 and forcibly transfer the cut-off strings B to downwardly to guide them to the suction opening 4 for their collection. In this way, the cut-off binding strings can be safely and securely collected and the suction machine can be miniaturized in the capacity without making large the suction opening area.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and apparatus for collecting a plurality of packaged articles and the like, winding a binding string such as a string, and cutting and collecting the binding string from the bundled assembled article. It is about.

[0002]

2. Description of the Related Art Conventionally, in the transportation and handling of packaged articles such as corrugated cardboard, they are often handled by being piled on pallets. For each layer, a binding cord made of vinyl or the like is wound around the article assembly to be bound, and the binding cord is cut when the articles are unloaded or taken out, and the articles can be sucked and collected by the suction collecting means to be removed. Are known. (JP-A-3-631)

[0003]

However, even if the binding positions of the binding cords around the article are varied in the vertical direction, in order to be able to suck and collect the binding cords,
It is necessary to use a suction hood having an opening of about the entire height of the article, and the area of the suction port also becomes large and the capacity of the suction means also becomes large, tending to increase the size of the entire device, and also the binding cord. There is often a lack of certainty in sucking and collecting, for example, in the conventional example in which the suction port is provided at the central position of the suction hood, when the binding cord is located in the lower part of the suction hood, the suction force is weak and it becomes impossible to collect. Or, after the binding cord is cut into thin pieces, it hangs down at the bottom of the article and becomes uncollectible, or the suction port separates from the side of the article together with the grasping tool when the binding cord is sucked and collected. Therefore, there is a problem that the suction force is reduced and it becomes impossible to recover. Moreover, due to poor recovery of the binding cord, abnormalities in packing such as detection of the binding cord, non-stop such as dropping and trouble stop often occur, which causes a decrease in operating rate. Or, winding accident or hindrance of the binding cord to the drive mechanism by binding string fall there has been a drawback such as multiple.

The present invention is intended to eliminate these drawbacks of the prior art. Even if there is a variation in the binding position of the binding body to the article, it is possible to reliably collect the binding body by suction without enlarging the suction mechanism. It significantly reduces the occurrence of defective collection of bundles, eliminates the non-stop trouble due to the detection of bundles, and reduces the number of accidents involving the binding string around the drive unit.
It is an object of the present invention to provide a tie cord suction and recovery mechanism in a compact and inexpensive form.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a tie string wound around a collective article is cut by a tie string cutting means, and the cut tie string is sucked by a suction port of a suction hood. In the method of cutting and collecting the binding cord for sucking and collecting, while the suction hood is moved toward and away from the side surface of the binding cord, air is blown from the upper portion of the suction hood when the binding cord is cut, and suction is provided at the lower portion of the suction hood. By making a suction flow from the mouth, forcibly moving the cut binding cord downward and guiding it to the suction port for suction collection, it is possible to maintain the certainty of suction collection of the cut binding cord. It is a thing.

Further, in the present invention, the binding cord suction mechanism is provided with a suction hood, an air jet nozzle for ejecting air from the upper part toward the suction port is provided in the suction hood, and the suction port is provided in the lower part. At the same time, by disposing the article contact members on the upper and lower portions of the outer peripheral edge of the suction hood, the suction and recovery mechanism for the binding cord is cut in a compact size.

[0007]

[Function] The suction hood of the binding cord suction mechanism and the binding cord cutting mechanism are arranged opposite to each other on the side of the load transfer position on the pallet, and are moved together with the pusher that moves from the periphery of the load to the center. Stopping at a constant facing distance to the side surface, grasping the article, separating from the side surface of the article by releasing the grasping, the lower baggage item moves by rising of the pallet lifter, and the binding string cutting mechanism and the binding string suction mechanism Placed in between. Then, when the pusher releases the article at the load transfer position and the binding cord is melted and cut by blowing hot air in the binding cord cutting mechanism, air is ejected from the air jet nozzle of the suction hood of the binding cord suction mechanism. At the same time, by the suction operation to the suction port at the lower part of the suction hood, the broken binding cord is properly sucked and collected at the suction port while slipping down along the side surface of the article. Therefore, even if there are variations in the position of the binding cord in the suction hood, the binding cord can be sucked and collected without fail, so a compact suction recovery device can be used to cut and collect the binding cord without increasing the suction port area or suction force. It can be performed simply and efficiently.

[0008]

EXAMPLE An example of the present invention will be described with reference to the examples of FIGS. 1 to 6. The binding cord B wound around the assembly of articles A was cut by the binding cord cutting mechanism 1 and was cut. The binding cord B is sucked and collected by the suction recovery mechanism 2 and the suction port 4 of the suction hood 3.
In the method of cutting and collecting the binding cord by sucking and collecting the suction cord 3 from the suction hood 3 toward and away from the side surface of the binding cord B, the air jet nozzle 5 is moved from the upper portion of the suction hood 3 toward the suction port 4 when the binding cord is cut. To eject air, and to generate a suction flow from the suction port 4 in the lower portion of the suction hood 3, forcibly moving the cut cord B to guide it to the suction port 4 for suction recovery. Is done.

In this case, the binding cord cutting mechanism 1 and the binding cord suction / recovery mechanism 2 are arranged opposite to each other above the pallet lifter 7 which is operated by the driving device 8 provided on the assembled frame 6 so as to be able to move up and down. The binding cord suction / recovery mechanism 2 is provided with a suction hood 3 by using a binding cord cutting / recovering device in which both these mechanisms are provided so as to be separable from each other, and air is blown into the suction hood 3 from an upper portion toward a suction port. An air jet nozzle 5 for jetting is provided, a suction port 4 is provided at the lower portion, and article contact members 9, 9 are provided at the upper and lower portions of the outer peripheral edge of the suction hood to ensure the suction and recovery of the binding cord B. I can do it.

A pallet C loaded with the above-mentioned articles A as an aggregate is carried in on a pallet lifter 7 and a binding cord B,
For example, a cutting and collecting process of a tie band made of a heat-melting synthetic resin such as polypropylene or polyethylene is performed, and the tie cutting mechanism 1 uses hot air blown through a flat and elongated duct 10 to the article A. It is configured such that the binding cord B wound around is blown and the binding cord B is fused. The duct 10 includes a pair of pusher plates 1
It is arranged between No. 4 and No. 14, and its tip is formed to be long in the vertical direction so that it can be surely melted even if there is a variation in the binding position of the binding cord B, and a valve is provided via a pipe or hose 11 (Fig. (Not shown), fan 12 and heater 13
It is configured with. That is, the air sent from the fan 12 is blown from the duct 10 toward the binding cord B via the heater 13, and this hot air blowing is turned on and off by opening and closing the valve, and the hot air blowing time depends on the type of the binding cord B. Can be adjusted. Further, the duct 10 is provided so that it can be brought into and out of contact with the article A together with the pusher plate 14 and is operated by a drive unit 19 such as a cylinder.

Further, as the binding cord suction and recovery mechanism 2, the binding cord B melted by the hot air of the cutting mechanism 1 is used.
Is sucked and collected from the suction port 4 by the suction hood 3. That is, the suction hood 3 is arranged between the pair of pressure plates 24, 24 on the side surface at the load transfer position,
The ties B that have been cut off can be sucked under the state where the pusher plates 14, 14 and 24, 24 on the facing surface of the article A are released from the grip. The suction hood 3 is provided so as to be able to come into contact with and separate from the article A and is operated by a drive unit 22 such as a cylinder so that it can be interlocked with the pusher plate 24.
The air jet nozzle 5 connected to the suction device 21 at 0, and further connected to the compressor or the blower 16 at the suction hood 3 is forcibly moved downwardly by the cut bundling string B, and the suction port 4 is connected. It is designed to be blown away.

The article contacting members 9, 9 provided on the upper and lower portions of the suction hood 3 are round bars so that slits can be formed on both sides. It is better to ensure that the material does not become a dead blind spot when it hangs down so that it can be collected reliably. Further, it is preferable that control of various operating devices such as each drive unit and fan suction device can be performed from information obtained from detectors such as photo switches and limit switches for detecting objects such as articles.

Loaded articles A placed on the pallet C
The other facing surface of the grip plate 17, which is moved forward and backward by the drive unit 18,
17 may be arranged so that it can be brought into contact with and separated from it, and it can be used as a mechanism for mounting at a predetermined position, preventing collapse of the load, or conveying the article A to another position. In this case, it is considered that the drive unit 18 including the grip plate 17 is incorporated into a slider that moves on the frame 6 or a dolly that travels on a rail to be transferred.

When the pallet lifter 7 is moved up and down, the article A transferred to the uppermost stage of the article assembly is held by the opposing pusher plates 14 and 24 and fixed at an appropriate position. Next, hot air is blown out from the duct 10 of the adjacent binding cord cutting mechanism 1 to melt and cut the binding cord B wound around the article A. Almost at the same time, the suction hood 3 is moved toward and away from the side surface of the binding cord B by releasing the grip of the article A or before that, and suction is started from the suction port 4 of the binding cord suction / recovery mechanism 2 and the air jet nozzle It is possible to surely blow the air from 5 and forcibly move the cut bundling cord B downward, guide it to the suction port 4 and suck and collect it in the suction device 21. Further, when the articles are removed, the second-stage article assembly is lifted up by the pallet lifter 7 as it is, and the binding string B is cut and sucked and recovered in the same manner as described above to sequentially remove the binding body B to the lowermost stage. Can be automatically repeated.

Then, when the pusher plate releases the grip of the article A at the load transfer position, the binding cord B slides down the side portion of the article and is located at a position facing the lower part of the article near the load transfer device. It always passes through the front surface of the hood 3 and is sucked and collected by the suction port 4. That is, since the suction port 4 is provided in a local range of a position facing the lower part of the article on the side of the load transfer position, the binding cord B can be sucked and collected without fail, so that the suction port area is almost equal to the total height of the article A. It doesn't have to be big. For this reason, it is possible to reliably suck and collect the binding cord B while reducing the size of the binding body collection device such as reducing the capacity of the suction device 21.

[0016]

Industrial Applicability According to the present invention, a bundling cord wound around a collective article is cut by a binding cord cutting means, and the cut binding cord is sucked by a suction means from a suction port of a suction hood and collected. In the string cutting and collecting method, the suction hood is moved toward and away from the side surface of the binding cord, air is ejected from an upper portion of the suction hood when the binding cord is cut, and a suction flow is generated from a suction port at a lower portion of the suction hood. It is possible to collect the cut binding cord safely and surely by guiding the cut binding cord to the suction port and sucking and collecting it while forcibly moving the cut binding cord downward, and the collection failure of the binding cord is reduced. As a result, non-stop troubles due to the detection of the string can be reduced, and the logistics work can be performed remarkably efficiently without the occurrence of the string entanglement in the drive unit, and the operation rate can be greatly improved. Further, in the present invention, the binding cord suction mechanism is provided with a suction hood, an air jet nozzle for ejecting air from an upper portion toward a suction port is provided in the suction hood, and a suction port is provided at a lower portion. By arranging the article contact members on the upper and lower parts of the outer peripheral edge of the suction hood, it is possible to reliably guide the cut binding cord that is sucked by the suction port, and it is not necessary to increase the suction port area and the capacity of the suction machine Can be miniaturized.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view of the example of FIG.

FIG. 3 is a vertical cross-sectional view of a part of the binding string suction and recovery mechanism.

FIG. 4 is a perspective view of the example of FIG.

5 is a perspective view of the example of FIG. 3 in use.

FIG. 6 is a front view of the suction hood of the example of FIG.

[Explanation of symbols]

 A article B bundling string C pallet 1 bundling string cutting mechanism 2 bundling string suction / recovery mechanism 3 suction hood 4 suction port 5 air jet nozzle 6 frame 7 pallet lifter 8 drive device 9 article contact member 10 duct 11 pipe 12 fan 13 heater 14 , 24 Pusher plate 15 Hose 16 Blower 17 Grip plate 18, 19 Drive section 20 Hose 21 Suction machine 22 Drive section

Claims (2)

[Claims] 1. A binding cord cutting and collecting method of cutting a binding cord wrapped around a collective article with a binding cord cutting means and sucking and collecting the cut binding cord with a suction means from a suction port of a suction hood. In the above, while moving the suction hood toward and away from the side surface of the binding cord, air is blown from the upper portion of the suction hood when the binding cord is cut, and a suction flow is generated from the suction port at the lower portion of the suction hood. ,
A method for cutting and collecting a binding cord, characterized in that the cut binding cord is forcibly moved downward and guided to a suction port for suction collection. 2. A binding cord cutting / recovering device in which a binding cord cutting mechanism and a binding cord suction mechanism are arranged opposite to each other above a pallet lifter, and both of these mechanisms are provided so as to be able to come into contact with and separate from each other. Is provided with a suction hood, an air jet nozzle for ejecting air from the upper part is provided in the suction hood, a suction port is provided in the lower part, and article contact members are provided on the upper and lower portions of the outer peripheral edge of the suction hood. A device for cutting, collecting and collecting a binding cord.