JPH0812080A - Palletizing method and device for can package with lid - Google Patents

Abstract

PURPOSE:To make certainly and easily the processing of the starting and ending parts of a supporting tape which holds the stacked attitude of can lid packages. CONSTITUTION:The starting part of a supporting tape 6 is secured by a pressure sensitive adhesive tape 8 to the oversurface of a pallet 2 placed on an elevating table 3, and a movable table 41 and a stopper plate are operated so that the first stage can lid packages 1 are placed in alignment on the pallet 2, and the supporting tape 6 is folded back and laid on the first stage can lid packages 1, and thereon the second stage can lid packages 1 are placed in alignment in the same manner as the first stage packages. After the folding-back of supporting tape 6 and stacking of packages 1 are performed to a certain stage specified, the tape 6 is grasped with a specified margin left and severed in the neighborhood of the grasped place, followed by joining by a welding unit 45 to the middle part of the supporting tape 6 which has been already wound on the packages 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for stacking can lid packages, in which a large number of can lids are aligned and covered in a cylindrical shape, on a pallet in multiple stages and in a staggered manner. is there.

[0002]

2. Description of the Related Art Cans used as packaging containers for foods and beverages are carried into a filling factory by dividing them into a can body and a can lid, and after filling the contents, the can lid is wound around the can body and attached. ing. In order to facilitate the automatic supply of the can lid to this can lid winding process, at the time of shipping and transporting the can lid, 100 to several hundred can lids are aligned and aligned. Is covered with a paper bag or the like to form a cylindrical can lid package, and the can lid packages are stacked in multiple stages on a pallet.

An apparatus for palletizing this kind of can lid package is disclosed in Japanese Patent Laid-Open No. 59-194935, Japanese Patent Laid-Open No. 2-255425 or Japanese Patent Publication No. 56965/1990.
It is described in the official gazette. Explaining the basic structure of the devices described in these publications, each device is configured to stack can lid packages in multiple stages on a pallet. First, an empty pallet is placed on an elevator. And the starting end portion of the support tape is laid on the upper surface of the pallet, and the first-stage can lid package is placed in parallel on it. This operation is generally performed by arranging a plurality of can lid packages in parallel in advance, moving them onto a pallet, and then transferring them onto the pallet.

Then, the supporting tape is moved so as to cover the first-stage can lid package, and in this state, the second-stage can lid package is transferred to the pallet. In that case, the row of the second-stage can lid packaging body has a dimension corresponding to the radius thereof in the lateral direction (that is, the radial direction of the can-lid packaging body) with respect to the row of the first-stage can lid packaging body. They are staggered and stacked in a so-called zigzag pattern. Thereafter, the same procedure is performed when stacking the third-stage can lid packages. Then, after stacking the can lid packages by the specified number of steps, the supporting tape is bonded and cut. Therefore, the support tape is sandwiched between the steps, and the support tape is folded back into a ninety-nine fold shape.
The outermost can lid packaging body in the arrangement direction is held by the supporting tape in a state in which the folded back supporting tape is wound, and the stacked shape of the can lid packaging bodies is retained.

[0005]

Since the above-mentioned support tape is for holding the state in which the can lid packages are stacked in multiple stages, the can lid packages of each stage are applied with a considerable tension. And is wrapped around the outer can lid package. Therefore, it is necessary to fix the starting end portion of the support tape before stacking the can lid package on the pallet, and for example, the above-mentioned JP-A-59-194 described above.
In the device described in Japanese Patent No. 935, the starting end portion of the support tape is fixed to the pallet. However, there is no description of how to fix the support tape, and if the support tape was manually fixed to the pallet, remove the pallet that has been stacked and set a new pallet on the lifting table, The fixing work will be performed within a short time before the next stacking operation is restarted. Therefore, the work was difficult and dangerous.

Further, in the invention disclosed in Japanese Patent Laid-Open No. 2-255425, the base paper covered on the upper surface of the pallet is vacuum-sucked to be lifted and the starting end portion of the support tape is inserted and fixed to the lower side thereof. I am trying. The support tape can be fixed by such means, but for that purpose, the pallet is limited to the one provided with the liner, and the complicated and difficult to control such as the vacuum suction pad and the support tape insertion mechanism. It is necessary to provide such a mechanism, and further, there is a disadvantage that the backing paper is torn and needs to be replaced frequently during depalletizing.

Further, in the invention disclosed in Japanese Patent Publication No. 3-56965, the starting end portion of the supporting tape is fixed to the side end portion of the pallet by pressing it with a holding claw arranged on the side portion of the lifting table. After stacking the can lid packages up to the number of steps, the fixing of the support tape by the holding claw is removed. However, in order to press the starting end of the supporting tape with the pressing claw, a device for feeding out the starting end of the supporting tape and aligning it with the side end of the pallet is required, but there is no description of the device,
If it is done manually, the workability will be poor and dangerous. Further, the presser pawl device needs to be lowered together with the lifting table, and as a result, the lifting mechanism for the pallet may have a complicated structure.

Further, in Japanese Patent Publication No. 3-56965, the end portion of the support tape is adhered to the intermediate portion of the support tape which is already wrapped around the can lid package as the end treatment means of the support tape. , Means for cutting the support tape afterwards. However, the adhesion point of the support tape is always lower than the feeding position, so if it is adhered before cutting, the support tape will be folded in two by pulling down to the adhesion point, which makes the adhesion work difficult. Or, there is a possibility that a mechanism for avoiding the bonding after being folded in half is required and the structure of the bonding mechanism becomes complicated.

The present invention has been made in view of the above circumstances. It is easy to process the starting end portion and the terminating end portion of a supporting tape, and the supporting tape is first cut by an unpacking device used for depalletizing. Since the positions to be used are different, the palletizing device and the palletizing method for a can lid package that does not hinder the shipping destination are provided by changing the joining position of the end portion of the support tape according to the unpacking device at the shipping destination. That is the purpose.

[0010]

In order to achieve the above-mentioned object, the apparatus of the present invention has a cylindrical can lid packaging body in which a large number of can lids are aligned and encapsulated in parallel on a pallet. They are arranged in a staggered manner and stacked in a zigzag pattern in the vertical direction, and the supporting tape is folded back into a ninety-nine folding shape and sandwiched between the can lid packages at each stage to support the outer can lid package. A palletizing device for a can lid package that is held by a tape, an elevating table on which the pallet is placed, and an attaching mechanism that attaches the starting end of the supporting tape to the upper surface of the pallet on the elevating table with an adhesive tape. A movable table that can be moved to a position above the elevating table from the transfer position that is horizontally separated from the elevating table by placing the can lid packaging bodies in parallel with each other. A stopper plate that prevents movement of the can lid package on the movable table and drops the can lid package onto the pallet when the movable table returns to the transfer position, and a predetermined number of cans on the pallet. Each time the lid wrapping body is placed, the feeding position moving mechanism that reciprocates the feeding position of the support tape in a direction orthogonal to the axial direction of the can lid wrapping above the lifting table, and a predetermined number of stages of the can lid wrapping. A cutting mechanism for gripping and cutting the support tape while leaving a predetermined margin in a stacked state, and a support tape in which the cut side end of the support tape gripped is already wrapped around a can lid package. And a joining mechanism for joining to an intermediate portion of the.

In the palletizing method of the present invention, cylindrical can lid packages formed by arranging and enclosing a large number of can lids are arranged in parallel on a pallet and are vertically staggered to be stacked. , And a palletizing method for a can lid packaging body in which the supporting tape is folded back into a ninety-nine folding shape and sandwiched between the can lid packaging bodies of each stage to hold the outer can lid packaging body with the supporting tape, After fixing the starting end of the supporting tape to the upper surface of the pallet on the elevating table with an adhesive tape, the first-stage can lid packages are arranged side by side on the pallet, and the supporting tape is folded back to form the first stage. Was placed on the can lid package, and a group of can lid packages of the second stage were arranged in parallel on the can lid package, and the supporting tape was folded back and the can lid packages were stacked up to a predetermined number of steps. Support later Holding tape with a predetermined margin left, cutting the supporting tape in the vicinity of the gripped portion, and the cutting side end in the gripped state is already wrapped around the can lid package. It is a method characterized by joining to the intermediate part of.

[0012]

In the present invention, the starting end of the supporting tape is fixed to the upper surface of the pallet placed on the lifting table by the adhesive tape, and the supporting tape is laid on the upper surface of the pallet. In this state, the movable table moves to a position above the pallet, and the stopper plate operates so as to prevent movement of the can lid package on the movable table. And when the movable table returns to the transfer position,
Since the can lid package on the movable table is prevented from moving by the stopper plate, it is relatively pushed from the movable table and lowered onto the pallet. Then, the feeding position of the supporting tape is moved to the opposite end of the group of can lid packages arranged in parallel, and the supporting tape is laid on the first-stage can lid package in this manner. Similarly, the can lid packages are stacked up to a predetermined number of stages, and at that time, the joining position of the end portion of the support tape is determined according to the unpacking operation of the shipping destination of the can lid, and it is preset for each joining position. According to the required length of the end portion of the supporting tape, the supporting tape is cut leaving a predetermined margin. In that case, the support tape is gripped in the vicinity of the cutting point, so that the end on the cutting side is still gripped and moved to the middle part of the support tape already wrapped around the can lid package, where it is joined. It

[0013]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a layout diagram schematically showing an example of an apparatus according to the present invention. A can lid package 1 which is an object of palletizing has a large number of disc-shaped can lids aligned and aligned. The can lid packaging body 1 is put in a paper bag or the like and packaged in a columnar shape, and an elevating table 3 on which a pallet 2 for stacking the can lid packaging body 1 in multiple rows and multiple stages is placed is provided. The lifting table 3 is attached to the upper ends of a plurality of sets of pantograph mechanisms 4 connected to each other, and the pantograph mechanism 4 is driven by an actuator 5 such as a hydraulic cylinder or an air cylinder to move the lifting table 3 up and down. ing.

The apparatus shown in FIG. 1 is designed to hold the stacked state of the can lid packages 1 on the pallet 2 by a supporting tape 6, and the starting end of the supporting tape 6 is fixed to the upper surface of the pallet 2. Two sticking mechanisms 7 are arranged side by side on the lifting table 3 in the axial direction of the can lid package 1. This attaching mechanism 7 attaches the starting end of the support tape 6 to the pallet 2 with an adhesive tape 8 such as gum tape.
2 to FIG.
As shown in, a mechanism for pulling out the adhesive tape 8 from the roll 9 and cutting it to a required length, and a starting end portion of the supporting tape 6 is bent along the upper surface of the pallet 2 so as to extend from the bent end to the upper surface of the pallet 2. Adhesive tape 8
And a mechanism for attaching.

First, the latter mechanism, that is, the mechanism for adhering the adhesive tape 8 will be described. The mechanism is rotated about a horizontal axis between a position in which it is almost vertically erected and a position in which it is leaning against the upper surface of the pallet 2. A frame 10 is provided. That is, a rotary actuator 11 is provided at the center of rotation of the frame 10.
At the tip (upper end) of the frame 10, the pallet 2
A roller 12 that is pressed against the upper surface of the roller 12 is mounted, and a pressing roller 13 that is moved back and forth along the frame 10 by an actuator (not shown) is mounted on the rotation center side (lower side) of the roller 12. Further, on the rotation center side (lower side) of the pressing roller 13, a suction pad 14 for vacuum-sucking the supporting tape 6 hanging under its own weight is attached. This suction pad 14
A movable pin 15 that moves back and forth in the width direction of the frame 10 (the direction perpendicular to the paper surface in FIG. 2) is attached further to the center of rotation (lower side). The movable pin 15 is moved back and forth by an actuator (not shown) such as an air cylinder attached to the frame 10 so as to move between a position retracted from the front surface side of the frame 10 and a position on the frame 10 side. Has become. And frame 1
At a position close to the center of rotation of 0, a nozzle 16 that blows air with its front side facing the tip is attached.

On the rear side (right side in FIG. 2) of the frame 10, a sticking head 17 for holding the adhesive tape 8 is arranged. The sticking head 17 holds the adhesive tape 8 cut into a predetermined length by vacuum suction, and a plurality of suction holes for suction are formed on the front surface of the rectangular block and a predetermined suction is performed. To the source via valves (each not shown). Also, this sticking head 17
Is attached to the tip of a lever 18 which rotates about the same rotation center as the frame 10, and the rod 18 of the air cylinder 19 is attached to the lever 18.
Are connected, and the air cylinder 19 is
It is rotatably attached to the frame 10 via a bracket 21. Therefore, the sticking head 17 is rotated by the air cylinder 19 to the front side of the frame 10 through a position where it does not interfere with the pressing roller 13 and the suction pad 14 attached to the frame 10.

The sticking head 17 is normally retracted to the position shown in FIG. 2, and at that position the adhesive tape 8 is cut to a predetermined length and held by the sticking head 17. A mechanism therefor will be described. At a diagonally rearward position of the lever 18 in the retracted position, a fixed portion 22 tilted substantially parallel to the lever 18 is provided, and a slider 23 slidably attached to the fixed portion 22 is provided. A pair of grip claws 24 are attached. These grip claws 24 are protruded from the slider 23 so as to be located on the front side of the pasting head 17 and on the left and right sides thereof, and are driven by an actuator (not shown) such as an air cylinder. The left and right sides of the adhesive tape 8 are gripped by closing.

A cutter 25 is attached to the upper portion of the fixing portion 22 so as to reciprocate in the width direction above the attaching head 17. A pair of guide rollers 26 and a shaft 27 for rotatably holding the roll 9 are arranged above the sticking head 17 in the retracted position.

An elevator beam 30 hung from a fixed beam 28 via an air cylinder 29 is arranged above the elevator table 3, and the elevator beam 3 is further provided.
At 0, a positioning bar 31 is suspended in a lateral direction (a direction orthogonal to the can lid packaging body 1) so as to be reciprocally movable. The air cylinder 29 is a so-called tandem cylinder, and is designed to stop the lifting beam 30 at three positions, that is, an upper limit position, a lower limit position, and an intermediate position thereof.

The positioning bar 31 is for controlling the stacked state (posture) of the group of can lid packages 1. The positioning bar 31 is provided by an air cylinder (not shown) and a pair of stoppers that define the stroke end of the can lid. The package 1 can be moved in the lateral direction by a dimension substantially corresponding to the radius. This is because the can lid package 1 is arranged in a zigzag pattern in the vertical direction.

Positioning fingers 32 for defining the left and right positions of a predetermined number of horizontally arranged can lid packages 1 are provided at both left and right ends of the positioning bar 31. That is, the positioning finger 32 is held by the air cylinder 33 in a state of protruding from the positioning bar 31 in the left-right direction, and extends below the positioning bar 31. And the air cylinder 33 is
It is a combination of two air cylinders with different stroke amounts, or a structure that can be stopped in three positions.
Is a position apart from the side end of the group of can lid packages 1 arranged in parallel, a position in contact with the side end of the group of can lid packages 1, and a width is narrowed by tightening the group of can lid packages 1 from both sides. It is designed to move to three different positions.

Next, a mechanism for supplying the support tape 6 will be described. A traverser 34, which reciprocates in the width direction of the lifting table 3 and in a range exceeding the width of the lifting table 3, is attached to the fixed beam 28 described above. The traverser 34 is used for the lifting beam 30.
It is arranged in the axial direction of the can lid wrapping body 1 with respect to the positioning bar 31 so as to avoid interference with them. The traverser 34 is reciprocally moved by an actuator (not shown) such as a rodless cylinder attached to the fixed beam 28.
Four pairs of guide rolls 35, each pair of two rolls, are attached at four positions in the vertical and horizontal directions. The guide rollers 35 are provided on the left and right in combination with the provision of the two attachment mechanisms 7 in order to hang the two support tapes 6 on the can lid package 1. Further, a pair of left and right support tape pull-out rollers 36 are provided at the central portion of the traverser 34 in the vertical direction. The support tape pull-out roller 36 is
The support tape 6 is pulled out in the step of cutting and welding the support tape 6 to be described later to secure a margin, and the support tape 6 is pulled out by being driven by a motor (not shown) while the support tape 6 is sandwiched. It has become.
In the process of stacking the can lid packages 1, the support tape 6 is preferably pulled out by the tension due to the movement of the traverser 34. For that purpose, the support tape pull-out roller 36 is provided via a one-way clutch (not shown). It is preferable to attach it to the rotating shaft of the motor. As for the length of the support tape 6 to be drawn, a rotary encoder (not shown) may be attached to the motor, and the motor may be controlled by judging the length of the output from the output pulse.

A fixed guide roller 37 is provided substantially in the center of the moving range of the traverser 34, and a guide roller 38 for guiding the support tape 6 and an upper portion thereof are provided on one end side of the fixed beam 28. And a rotating shaft 40 for holding the supporting tape roll 39 located at the position. A pair of the guide roller 38, the support tape roll 39, and the rotary shaft 40 are provided.

Means for supplying a group of can lid packages 1 arranged in parallel to the lifting table 3 will be described below. A movable table 41 is provided which reciprocates between a position above the pallet 2 on the lift table 3 and a position horizontally deviated from this position. The movable table 41 is a table on which a predetermined number of can lid wrapping bodies 1 are placed in close contact with each other and arranged, and the can lid wrapping bodies 1 are prevented from rolling and dropping on the left and right sides of the upper surface thereof. The ridge portions 42 are provided respectively. Further, the movable table 41 is supported in a cantilever manner to reciprocate in the axial direction of the can lid package 1 in order to prevent interference with the above-mentioned mechanisms.

The transfer of the can lid package 1 from the movable table 41 to the pallet 2 is carried out by the returning movement of the movable table 41. That is, at a position corresponding to the rear end of the can lid package 1 on the movable table 41 advanced to the position above the pallet 2, as shown in FIG. 5, a stopper plate that is vertically moved by an actuator 43 such as an air cylinder. 44 are provided. The stopper plate 44 is a plate having a length substantially equal to the arrangement width of the can lid package 1 on the movable table 41 and faces the rear end surface of the can lid package 1 without contacting the upper surface of the movable table 41. It is adapted to move up and down between a position where the switch is turned on and a position which is above it. Therefore, with the stopper plate 44 lowered, the movable table 41 is
Is retracted, the retracting movement of the can lid package 1 placed thereon is prevented by the stopper plate 44, and as a result, the can lid package 1 is in a state in which the movable table 41 is pulled out from the lower side thereof. Therefore, the movable table 41 is lowered onto the pallet 2 in the arranged state.

Can lid package 1 folded back into a ninety-nine fold shape
The support tape 6 sandwiched between the can lid packaging bodies 1 is cut and fixed after the can lid packaging bodies 1 are stacked up to a prescribed number of stages. Welding unit (cutting mechanism and joining mechanism) 45 for that purpose
Are arranged on the side of the lifting table 3. 6 to 8 are schematic diagrams showing the welding unit 45. One of the upper and lower sides (the upper end in the illustrated example) is pinned to the side portion of the lifting table 3, and the lifting table 46 is used to lift the table. An elevating guide 47 tilted to the 3 side is arranged, and an elevating cylinder (rodless cylinder) 48 attached along the elevating guide 47 allows the welding unit 45 to move up and down so that welding can be performed at a predetermined welding position (height). It is movably held.

As shown in FIGS. 7 and 8, an inversion chuck 50 is attached to the lower end of the frame 49 having an L-shaped cross section. This is configured to advance from one side of the hanging support tape 6 to sandwich and hold the support tape 6, and to rotate 180 ° in that state. Although a dedicated actuator can be provided for the rotation, the actuator can be configured to be pulled by the support tape 6 to rotate against the elastic torque and to return and rotate by the elastic force. A cutter 51 for cutting the support tape 6 is provided just above the reversing chuck 50. Since a tape made of a heat-welding synthetic resin such as polyethylene is generally used as the supporting tape 6, as the cutter 51, one having a structure capable of being cut by heating and melting other than one having a sharp blade is used. can do.

Further, a welding head 52 is arranged above the cutter 51. This has a thin plate-shaped tip portion which has a built-in heat source such as an electric heater and is pressed against the supporting tape 6, and the supporting tape 6 is pressed on both upper and lower sides of the supporting tape 6 so that the supporting tape 6 is not loosened. A roll 53 is provided. Note that the cutter 51, the welding head 52, and the roll 53 may be configured to move in the width direction of the support tape 6, and with such a configuration, the small cutter 51, the welding head 52, and the roll 53 can be used. Further, in FIG. 6, reference numeral 54
Is a tape pressing cylinder, and the supporting tape 6 is not pressed against the can lid packaging body 1 by the side portion of the upper end of the stacked can lid packaging bodies 1 to prevent loosening and collapse of the stacked can lid packaging bodies 1. It is like this.

Although not particularly shown, the movable table 4
As the means for transferring the can lid package 1 to the 1 can adopt a conventionally known means. For example, the can lid package 1 discharged from the packaging process is gripped by a chuck and lifted, and the can is moved. A structure that is placed on the table 41,
It is possible to employ a structure in which the can lid package 1 is pushed by a pusher and placed on the movable table 41.

Next, the operation of the above-mentioned apparatus, that is, the method of the present invention will be described. The adhesive tape 8 for sticking the starting end portion of the support tape 6 to the upper surface of the pallet 2 is adsorbed and held by the sticking head 17 in advance. That is, while the can lid wrapping body 1 is being palletized on the preceding pallet 2, the grasping claws 24 grasp the ends of the adhesive tape 8 that is pulled out from the roll 9 and hanging from between the guide rolls 26. When the slider 23 descends in this state, the adhesive tape 8 is pulled out by a predetermined size. At this time, the non-adhesive surface of the adhesive tape 8 is adhered to the attaching head 17.
Of the adhesive tape 8 so that the adhesive head 17 holds the adhesive tape 8 by vacuum suction. Then the cutter 25 is 1
It is moved back and forth to cut the adhesive tape 8 slightly above the application head 17. After that, the grip claws 24 release the grip of the adhesive tape 8 and return to the original position. In this way, the adhesive tape 8 having a predetermined length is held by the attaching head 17.

On the other hand, the elevating table 3 on which the empty pallet 2 is placed is at the ascending limit position, and the traverser 34 has moved to the end on the side of the attaching mechanism 7 and stopped. In this state, the starting end of the support tape 6 hangs down on the front side of the attaching mechanism 7. When the suction pad 14 sucks in this state, the support tape 6 is sucked and held by the suction pad 14, and the movable pin 15 further advances to the front side of the support tape 6. Then frame 10 is pallet 2
The frame 10 is temporarily stopped immediately before the movable pin 15 is pressed against the upper surface of the pallet 2 by rotating toward the upper surface of the frame 10. Here, air is jetted from the nozzle 16, and as a result, the portion of the support tape 6 that hangs below the movable pin 15 is folded back so as to wrap the movable pin 15 as shown in FIG. With the support tape 6 folded back in this way, air jetting stops, and the movable pin 15 moves backward in the width direction of the frame 10 and is withdrawn from the front side of the support tape 6. Then frame 10
Is further rotated, and the roller 12 and the pressing roller 13 press the supporting tape 6 on the upper surface of the pallet 2.

In this way, with respect to the starting end portion of the support tape 6 which is folded in two and pressed onto the upper surface of the pallet 2,
The application head 17 is lowered from above, and the adhesive tape 8 sandwiches the folding line of the support tape 6 from the support tape 6 to the pallet 2.
Is affixed over the upper surface of. That is, the sticking head 1
The pallet 2 is attached to the pallet 2 by rotating the lever 18 to which it is attached by the air cylinder 19.
The adhesive tape 8 is attached as described above.

The sticking head 17 is returned and rotated after the suction holding of the adhesive tape 8 is released, and subsequently the pressing roller 13 reciprocates once along the frame 10 to firmly fix the adhesive tape 8. It is pressed down and firmly attached to the support tape 6 and the upper surface of the pallet 2. The attachment position of the adhesive tape 8 for fixing the support tape 6 to the pallet 2 in this manner is shown by a broken line in FIG. Then, the attachment mechanism 7 returns to the original position by turning.

The support tape 6 having the starting end fixed to the pallet 2 is laid along the upper surface of the pallet 2 by the traverser 34 moving to the left end in FIG. In this way, a group of can lid packages 1 arranged in parallel to the so-called ready pallet 2 is supplied. That is, the movable table 41 on which the group of can lid packages 1 is placed is advanced to above the pallet 2, and the positioning bar 3 is placed at the forward end thereof.
As 1 moves down, its positioning fingers 32 operate to lightly sandwich the group of can lid packages 1 from the left and right sides to regulate the arrangement state. Then, the stopper plate 44 descends to the rear end side of the can lid packages 1, and the movable table 41 retracts in this state, so that the group of can lid packages 1 is moved from the movable table 41 to the pallet 2. Be taken down by.

The group of can lid packages 1 transferred to the pallet 2 is clamped in the width direction by the positioning fingers 32 further operating to eliminate looseness, and the positioning bar 31 is further lowered to hold the cans. It is attached and the looseness in the vertical direction is eliminated. After that, traverser 3
4 moves to the right end of FIG. 1, and the support tape 6 is wrapped around the can lid package 1 located at the outer end of the first stage and folded back. Then, a group of can lid packages 1 in the second stage is supplied on the movable table 41. In that case, in order to stack the can lid wrapping bodies 1 in a zigzag pattern in the vertical direction, the movable table 41 is positioned at a position displaced to the right in FIG. 1 by a dimension corresponding to the radius of the can lid wrapping body 1, Along with this, the positioning bar 31 is also moved to the right in FIG. Thereafter, similarly, tightening of the can lid package 1 and winding of the support tape 6 are sequentially performed. FIG. 10 schematically shows the stacking state of the can lid package 1 and the winding state of the support tape 6.

When palletizing the can lid packaging body 1 as described above, the can lid packaging body 1 is tightened while applying tension to the supporting tape 6, but the starting end portion of the supporting tape 6 is an adhesive tape. Since it is fixed to the pallet 2 by 8, it is possible to apply a necessary and sufficient tension to the support tape 6. Further, in particular, in the above-described embodiment, the adhesive tape 8 is formed by folding the starting end of the support tape 6 in two.
After the depalletizing is completed, the support tape 6 is attached to the pallet 2 by means of the support tape 6 by pulling the support tape 6 in the right direction of FIG. The adhesive tape 8 is peeled off from the pallet 2 while being adhered, and the entire surface of the peeled adhesive tape 8 is adhered to the conventional folded-back portion of the support tape 6, thus facilitating its post-treatment.

When the stacking of the can lid packages 1 to the specified number of stages is completed as described above, the traverser 34 has moved to the end on the welding unit 45 side and stopped, and the tape pressing cylinder is here. 54 operates to press the support tape 6 onto the upper surface of the can lid package 1 and temporarily fix it. In this state, the support tape pull-out roller 36 is driven to rotate, and the support tape 6 is pulled out in accordance with the required length of the support tape 6 up to a predetermined joining position, and the margin length is secured. As a result, the support tape 6 sags as shown by the chain line in FIG. 6, and hangs down to the upper surface side of the welding unit 45 that has been pulled up to the upper end position. Then, the reversing chuck 50 in the welding unit 45 grips a part of the slackened support tape 6 and stretches the support tape 6 between the traverser 34 and the support tape 6 without slack. Here, the cutter 51 operates to cut the support tape 6 above the reversing chuck 50. In the case of the fusing type cutter 51, it is preferable to apply tension to the support tape 6.
Then, the welding unit 45 is lowered by the lifting cylinder 48 to remove the slack of the support tape 6 on the side wrapped around the can lid package 1. In that case, the reverse chuck 50
Is elastically held in a predetermined direction, the reversing chuck 50 is rotated 180 ° by the tension caused by the linear extension of the support tape 6, and the support tape 6 is rotated.
Pull straight down.

On the other hand, the pushing cylinder 46 causes the lifting guide 47 and the lifting cylinder 48 to move up and down.
And the welding unit 45 is brought into contact with the already-stacked can lid packages 1 as shown in FIGS. 7 and 8. In that case, the position of the welding unit 45 in the vertical direction corresponds to the height of the can lid packaging body 1 projecting to the welding unit 45 side, that is, the can lid packaging body 1 in which the support tape 6 is wound around the outer surface. The cutting-side end of the support tape 6 held by the reversing chuck 50 is set to the position, and the roll 5 disposed on both upper and lower sides of the welding head 52.
By means of 3, it is pressed against the middle part of the support tape 6 which has already been wound around the can lid package 1. This state is shown in FIG. 8, in which the welding head 52 advances to heat the superposed support tapes 6 to join them. After that, the support tape 6 is released from the reversing chuck 50, and the welding unit 45 and the elevating guide 4 are released.
7 etc. returns to the original position and moves. Then, the pallet 2 in which the can lid packages 1 are stacked up to a predetermined number of stages is the lifting table 3
It is carried from the top to a predetermined place.

The joining position of the end portion of the support tape 6 differs vertically or horizontally depending on the number of stacking stages of the can lid package 1, but in addition to this, the opening position when depalletizing the can lid package 1 at the shipping destination. The welding unit varies depending on the position at which the support tape 6 of the can lid package 1 is first cut by the packaging device. Therefore, the welding unit described above has a configuration in which the vertical position can be changed so that the welding unit can be joined at any position. Alternatively, it may be provided on both left and right sides of the lifting table.

[0040]

As described above, according to the apparatus and method of the present invention, the starting end of the support tape for stacking and tightening the can lid packages on the pallet in a staggered manner is fully automatically operated on the upper surface of the pallet without human intervention. It is fixed by sticking it with adhesive tape on the end of the support tape, and the end part of the support tape is secured by cutting the connection tape at the required length, and after cutting, it is joined and fixed. Compared with the conventional device and method of inserting into the side, the preparation preparation operation of the palletizing of the can lid package is easier, and the processing of the end part also changes the joining position of the support tape according to the device of the shipping destination. Therefore, the overall structure of the apparatus can be simplified, and the work can be speeded up and the work can be made safe by completely automating the work.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing an example of an apparatus of the present invention.

FIG. 2 is a schematic side view showing the attaching mechanism.

FIG. 3 is a side view schematically showing an example of a mechanism for pulling out and cutting an adhesive tape by a predetermined size.

FIG. 4 is a schematic rear view of the mechanism of FIG.

FIG. 5 is a partial perspective view for explaining the configuration of a stopper plate.

FIG. 6 is a schematic view for explaining a mechanism for cutting and joining support tapes.

FIG. 7 is a partial view showing a state in which the support tape is cut.

FIG. 8 is a partial view showing a state in which a support tape is welded.

FIG. 9 is an explanatory diagram showing a state in which the starting end portion of the support tape is folded in two.

FIG. 10 is a schematic perspective view for explaining a stacked state of a can lid package and a wound state of a support tape.

[Explanation of symbols]

 1 Can Lid Package 2 Pallet 3 Lifting Table 6 Support Tape 7 Adhesion Mechanism 8 Adhesive Tape 34 Traverser 41 Movable Table 44 Stopper Plate 45 Welding Unit 51 Cutter 52 Welding Head

Claims (2)

[Claims] 1. A column-shaped can lid package formed by arranging and enclosing a large number of can lids is arranged in parallel on a pallet and stacked in a staggered manner in the vertical direction, and a supporting tape. In a palletizing device for a can lid package in which the outer can lid package is held by a supporting tape by being folded back into a ninety-nine folded shape and sandwiched between the can lid packages at each stage, a lifting table on which the pallet is placed. And a sticking mechanism for sticking the starting end of the supporting tape to the upper surface of the pallet on the lifting table with an adhesive tape, and placing the can lid package in parallel with the sticking mechanism to a position above the lifting table. A movable table that is moved from a transfer position that is horizontally away from the position, and a movable table top when the movable table returns to the transfer position from a position above the lifting table. A stopper plate for dropping the can lid package on the pallet to prevent movement of the can lid package, each time a group of can lid package of the predetermined number is placed on a pallet,
A delivery position moving mechanism for reciprocating the delivery position of the support tape above and below the lifting table in a direction orthogonal to the axial direction of the can lid package, and the support tape in a state where the can lid package is stacked by a predetermined number of stages. And a cutting mechanism for holding and cutting the sheet with a predetermined margin, and a joining mechanism for joining the grasped cutting side end of the supporting tape to the intermediate portion of the supporting tape already wrapped around the can lid package. A palletizing device for a can lid package, comprising: 2. Cylindrical can lid packages formed by arranging and enclosing a large number of can lids are arranged in parallel on a pallet and are vertically staggered to be stacked, and a support tape is provided. A method for palletizing a can lid package in which an outer can lid package is held by a supporting tape by folding it back into a nineteen-fold shape and sandwiching it between each stage of the can lid packaging, and the starting end of the supporting tape is raised and lowered. After fixing to the upper surface of the pallet on the table with adhesive tape, the first-stage can lid package is arranged side by side on the pallet, and the supporting tape is folded back and placed on the first-stage can lid package. After laying and arranging a group of can lid packages of the second stage in parallel on it, folding back the support tape and stacking the can lid packages up to a predetermined number of stages, and then giving the support tape a predetermined margin length. Gripping leaving A can lid characterized in that the support tape is cut in the vicinity of the gripped portion, and the cut-side end portion in the gripped state is joined to an intermediate portion of the support tape already wrapped around the can lid packaging body. Palletizing method for packaging.