JPS608226B2 - Automatic paper splicing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic splicing method for single-sided corrugated cardboard in the production of double-sided corrugated cardboard or multi-sided corrugated cardboard.

In the production of the above-mentioned double-sided corrugated board or multi-sided corrugated board, switching from double-sided corrugated board production to a different double-sided corrugated board production, switching from double-sided corrugated board production to double-sided corrugated board production, or switching from multi-sided corrugated board production to double-sided corrugated board production, etc. It is required now.

When the changeover is requested, conventionally, the single-sided cardboard that is no longer needed is manually cut and stopped when it exits the glue machine, and the single-sided cardboard that is needed is
After starting feeding, the paper was spliced by manually inserting the tip, which had been waiting for it to exit the glue machine, into the entrance of the double facer.

However, the conventional method described above requires manpower and also requires manual cutting and insertion into the entrance of the double facer, making the work inefficient and dangerous. An object of the present invention is to solve the above-mentioned problems and to be able to perform paper splicing automatically and unattended.

That is, in the present invention, one or two of the single-sided corrugated cardboards of different tier types guided from each single facer and passed through each glue machine (hereinafter referred to as series glue machine), Gluing is applied to the top of the corrugated board using a series glue machine, and the liner paper supplied separately is pasted with a double facer to produce double-sided corrugated board or multi-double-sided corrugated board. Next, from the first one or two single-sided corrugated boards, a new one with a different corrugated type is produced. When a different type of double-sided corrugated board or multi-sided corrugated board is manufactured by switching to single-sided corrugated board of Glue 1 or 2, the first single-sided corrugated board is placed near the inlet of the double facer at the bottom of the serial glue machine, and its smooth surface is The lower part of the part that was suctioned and held by the suction means is cut by the cutting means, and the feeding of the first single-sided corrugated board and the gluing of the series glue machine are stopped, and the feeding of the new single-sided corrugated cardboard is stopped. is started, and the series glue machine starts gluing, and the new Z single-sided corrugated board is
To provide an automatic paper splicing method characterized in that the paper is fed into the double facer by stopping the suction of a suction means that has been suctioning the smooth surface side near the entrance of the double facer at the downstream side of the series glue machine. be.
Z Hereinafter, the method of the present invention will be explained using the apparatus examples shown in FIGS. 1 to 3. Examples of the apparatus of the present invention include a glue machine and a
Cutting means 42A and 42B are provided between the double facer 3 and the double facer 3.
, suction means 52A and 52B and two stages of delivery means 62
A and 62B.

The glue machine 1 is installed in the passage of an upper single-sided corrugated board (for example, A flute, the same applies hereinafter) 71 that is guided from a single facer (not shown) toward the double facer 3, and the glue machine 2 The lower single-sided cardboard (for example, B flute, the same applies hereinafter) that is guided from another single facer and goes to the double facer 3.

) It is installed in 81 passages. Single-sided corrugated cardboard of corrugated types having different core corrugations are passed through the upper passage and the lower passage, respectively. Glumacin-2 and 2 are already well known and have the same structure. The glue machine 2 has glue reservoirs 11 and 21 disposed below the passages of the single-sided cardboard boxes 71 and 81, glue rolls 12 and 22 whose lower portions are dipped in the glue reservoir, and a glue layer on the glue rolls that is uniformly formed. doctor rolls 13 and 23, and doctor plates 14 and 24 in contact with the doctor rolls.
The single-sided cardboard 71 is placed above the pasting roll.
and lidar rolls 15 and 25 for bringing the single-sided corrugated boards 71 and 81 into contact with the gluing roll and cooperating with the gluing roll to feed the single-sided corrugated boards, and tables 16 and 26 for guiding the single-sided corrugated boards 71 and 81 between the gluing rolls and the lidar rolls. The gluing roll and the doctor roll are moved clockwise in the diagram by a driving means not shown.
The lidar roll is rotated counterclockwise in the figure. Furthermore,
While the single-sided corrugated cardboard 71 and 81 between the gluing roll and the lidar roll are stopped, the tables 16 and 26 and the lidar rolls 15 and 25 are raised by a driving means not shown, so that the single-sided corrugated cardboard can be separated from the gluing rolls 12 and 22. It looks like this. Glue machine 1 and 2
On the upper side are guide rolls 17 of single-sided cardboard 71 and 81.
and 18, and 27 and 28 are arranged. Further, a liner paper guide device 10 is disposed further below the lower glue machine 2, and the liner paper 9 passes through this device 10 and heads toward the double facer 3. The double facer 3 is already known and includes a heating plate 31 and a pressure/feeding belt 32 placed above the heating plate in opposition to the heating plate 31. Double-sided corrugated cardboard or double-sided corrugated cardboard can be manufactured by stacking and pasting the liner paper 9 and the liner paper 9 between the heating plate 31 and the belt 32.

Cutting means 42A, suction means 52A and feeding means 62
A is installed in the path of the upper single-sided cardboard 71 near the entrance 30 of the double facer 3 at a lower position than the groomer, and a cutting means 42B, a suction means 52B, and a feeding means 62B are installed at the lower end of the groomer 2 and near the entrance 30 of the double facer 3. Lower single-sided cardboard 8
It is installed in the 1st passage.

Means 42A and 42B, means 52A and 52B, means 62A
and 62B have the same structure.

Each of the suction means 52A and 52B includes a suction box 521, which is attached to, for example, a rotatably provided swing arm (not shown), and is freely disposed above the single-sided cardboard passage. The suction box 521 is connected to a vacuum pump (not shown), and can suction and hold the smooth surface of the single-sided cardboard through a suction port (not shown) on the bottom surface of the box. Each of the cutting means 42A and 42B is provided at the outlet of the suction box 521, and is connected to an upper fixed cutting blade 421.
and a lower movable cutting blade 422.

The fixed cutting blade 421 is integrally formed at the outlet end of the suction box 521, and the movable cutting blade 422 is formed integrally with the fixed cutting blade 4.
21 and is movable up and down by a drive means (not shown), and when raised, it can cut single-sided cardboard in cooperation with the fixed cutting blade 421. In addition to this example, the cutting means 42A and 42B are only a fixed cutting blade 421 attached to the outlet of the suction box 521, and the fixed cutting blade 421 has a suction port (not shown) on the bottom surface of the suction box 521 made of a smooth one-sided cardboard. The single-sided cardboard may be cut when the surface is held under suction.

Each of the Z delivery means 62A and 62B consists of a delivery roll 621 positioned above the movable cutting blade 422 near the entrance of the suction box 521. The feed roll 621 is made of, for example, a roll having a large number of concave and convex stripes in the Z roll axial direction on the roll surface.

The roll 621 is spaced apart from the single-sided corrugated board in the normal progress of the single-sided corrugated board and in the state in which it is held by the box 521, and is in a position where the first weave part can make feedable contact by its own weight when the starting end of the single-sided corrugated board is to be fed. It's dark. Further, the roll 621 is rotated clockwise in the figure by a driving means not shown when the starting end feeding is required. 620' is a guide plate disposed between the movable cutting blade 422 and the feed roll 621.

Note that the feeding means 62A and 62B are not necessarily required for feeding the starting end of the single-sided corrugated paperboard, and it is not necessary to provide them.

Next, the automatic splicing operation of single-sided corrugated cardboard according to the method of the present invention using this example of the apparatus will be explained.

First, the switching operation from manufacturing double-sided corrugated cardboard made of single-sided corrugated cardboard 71 and live paper 9 traveling in the upper passage to manufacturing double-sided corrugated cardboard made of single-sided corrugated cardboard 81 and liner paper 9 in the lower passage will be explained.

As can be seen from FIG. 1, in the normal state in which the single-sided corrugated cardboard 71 is progressing, the single-sided corrugated cardboard 71 is stretched so as not to sag, is glued by the glue machine 1, sent to the double fuser 3, and pasted with liner paper 9. It becomes double-sided cardboard. In such a state, the cutting means 42A
The cutting blade 422 is in the lowered position, allowing the passage of the single-sided cardboard 71, and the suction box 521 of the suction means 52A has stopped suction. Feeding means 62
The feed roll 621 of A is idle or stopped. Starting end 81 of single-sided cardboard 81 in the lower passage Suction means 52B
It is sucked and held by the suction box 521 and is on standby.

Further, in the glue machine 2, the single-sided cardboard 81 is separated from the gluing roll 22. The feed roll 621 of the feed means 628 is idle or stopped. The single-sided cardboard 81 is slackened below the guide roll 27.
When a switching operation is requested, first, as shown in FIG. 5, the suction box 521 of the suction means 52A is activated.
At this point, the single-sided cardboard 71 is being pulled by the double facer 3, so even if the box 521 acts as an adsorbent, the single-sided cardboard 71 does not stop. Furthermore, as shown in Figure 5,
At the same time as the glue machine 2 starts gluing and feeding the single-sided cardboard, the suction of the suction box 521 of the suction means 52B is released, and the feed roll 621 starts feeding the starting end 810 of the single-sided cardboard 81. When the starting end 810 reaches the entrance 30 of the double facer 3 and starts to enter, the single-sided corrugated cardboard 71 is separated from the gluing roll 12 in the glue machine 1, and the cutting blade 422 of the cutting means 42A is raised, as shown in FIG. 71 is disconnected. The cutting blade 422 is lowered to the initial position after cutting the single-sided cardboard. The starting end 7 of the single-sided corrugated cardboard left after the cutting is sucked and held by the already activated suction box 521, and is kept on standby until it is needed next. After the cut end of the single-sided corrugated board 71 enters the entrance 30 of the double facer 3, production of a double-sided corrugated board consisting of the single-sided corrugated board 81 and the liner paper 9 begins. Single-sided cardboard 81 moving along the lower passage
The switching operation is carried out in the same way as the switching operation from manufacturing double-sided corrugated cardboard consisting of the liner paper 9 and single-sided corrugated cardboard 71 in the upper passageway to manufacturing double-sided corrugated cardboard consisting of the liner paper 9 and the single-sided cardboard 71 in the upper passage.

In addition, switching from double-sided corrugated board production to double-sided corrugated board production is performed using the stopped single-sided corrugated board 71 that is placed on standby in advance.
Alternatively, it is sufficient to start gluing and advancing the paperboard 81, and the gluing and advancing operations are performed in the same manner as the gluing and advancing operations of the single-sided cardboard 81 described above.

Furthermore, the switch from multi-sided corrugated board manufacturing to double-sided corrugated board manufacturing involves the use of either single-sided corrugated board 71 that is no longer required.
Alternatively, it is sufficient to cut and hold the paperboard 71 and stop the gluing and progress, and the cutting and holding operations, the gluing and the progress stopping operations are performed in the same manner as the cutting and holding operations, the gluing and the progress stopping operations of the single-sided cardboard 71 described above. be exposed.

Thus, the present example apparatus can convert double-sided corrugated boards, for example, from A flutes of single-sided corrugated boards to B flutes, or vice versa, or from these double-sided corrugated boards to double-sided corrugated boards of A and B flutes, or vice versa. can also be switched freely. Next, the method of the present invention using still another example of the apparatus will be described in a fourth example.
This will be explained based on FIGS. 6 to 6.

In this device example, the glue machine 2, the double facer 3, the guide rolls 17, 18, 27 and 28 of single-sided corrugated paperboard, and the liner paper guide device 1 are shown in FIGS. 1 to 3.
It is of the same structure and similarly arranged as in the example device shown in the figures.

Cutting means 43A, suction means 53A and feeding means 63
A is lower than the glue machine 2 and is installed in the passage of the upper single-sided cardboard 71 near the entrance 30 of the double facer 3, and the cutting means 43B, suction means 53B and feeding means 63B are lower than the glue machine 2 and installed in the passage of the upper single-sided cardboard 71 near the entrance 30 of the double facer 3. It is installed in the path of the lower single-sided corrugated cardboard 81 near 30. The means 43A and 43B, the means 53A and 53B, and the means 63A and 63B have the same structure.

Each of the suction means 53A and 53B includes a suction box 531, which is attached to, for example, a rotatably provided swing arm (not shown), and is freely disposed above the single-sided cardboard passage. The suction box 531 is connected to a vacuum pump (not shown), and can suction and hold the smooth surface of the single-sided corrugated board through suction holes (not shown) on the bottom surface of the box. Each of the feeding means 63A and 63B is a belt capable of causing one or more endless belts 631 to run counterclockwise in the figure from above the suction surface 532 of the suction box 531 to the back side of the box by a driving means not shown. The endless belt includes a conveyor 632, and the endless belt is provided with a plurality of ventilation holes or gaps are provided between the endless belts 631 so as not to impede the suction effect of the suction box 531.

Each of the cutting means 43A and 43B includes an arm 431 that is rotatably connected to the delivery end shaft of the belt conveyor 632 and rotated by a drive means (not shown), and a cutting blade 432 at the tip thereof.

Next, the automatic splicing operation of single-sided corrugated cardboard according to the method of the present invention using this example of the apparatus will be explained.

First, the switching operation from manufacturing double-sided corrugated cardboard made of single-sided corrugated cardboard 71 and liner paper 9 traveling in the upper passage to manufacturing double-sided corrugated cardboard made of single-sided corrugated cardboard 81 and liner paper 9 in the lower passage will be explained.

As can be seen from FIG. 4, in the normal state in which the single-sided corrugated cardboard 71 is being advanced, the single-sided corrugated cardboard 71 is stretched so as not to sag, and is sent to the double facer 3 while being glued by the glue machine, where it is bonded to the liner paper 9. They are pasted together to form double-sided cardboard. In this state, the cutting blade 432 of the cutting means 43A is located above the single-sided corrugated paperboard passage, allowing the passage of the single-sided corrugated paperboard 71, and the suction means 53A and the feeding means 63A are not in operation.

The starting end 810 of the single-sided corrugated board 81 in the lower passage is kept near the entrance of the double facer 3 and is suctioned and held by the suction box 531 of the suction means 53B.
The cutting blade 432 of the cutting means 43B is placed above the single-sided cardboard path, and the feeder 63B is stopped. Furthermore, in the glue machine 2, the single-sided cardboard 81 is separated from the gluing roll 22, and the single-sided cardboard 81 is slackened below the guide roll 27. When a switching operation is requested, first, as a preparatory operation, as shown in FIG. 5, the suction box 531 of the suction means 53A is activated, and the belt conveyor 632 of the delivery means 63A is started. Compare belt 631 is one-sided cardboard 71
Of course, it rotates at a traveling speed of . Next, as shown in FIG. 5, gluing and single-sided cardboard feeding are started in the glue machine 2, and at the same time, the belt conveyor 632 of the delivery means 63B is started while the suction box 531 of the means 53B is kept in operation.

When the single-sided cardboard starting end 810 reaches the entrance 30 of the double facer 3 and starts to enter, the single-sided cardboard 71 is moved to the gluing roll 12 in the glue machine 1 as shown in FIG.
4-, the cutting blade 432 of the cutting means 43A descends to cut the single-sided cardboard 71, and the feeding means 63A
conveyor 632 is stopped.

The cutting blade 432 is raised to the initial position after cutting the single-sided cardboard. The starting end 7 of the single-sided cardboard left after the cutting is also the suction box 5 of the means 53A that has already been activated.
31, and is kept on standby until the next time it is needed. Thus, after the cut end of the single-sided corrugated board 71 enters the entrance 30 of the double presser 3, the production of double-sided corrugated board consisting of the single-sided corrugated board 81 and the liner Z paper 9 is started, and after an appropriate period of time, the suction means 53B and the feeding device 638 are activated. will be stopped. Switching from manufacturing double-sided corrugated cardboard consisting of single-sided corrugated cardboard 81 and liner paper 9 traveling in the lower passage to manufacturing double-sided corrugated cardboard consisting of single-sided corrugated cardboard 71 and liner Z paper 9 traveling in the upper passage is performed in the same manner as the above-mentioned switching operation. It is done. In addition, switching from double-sided corrugated board production to double-sided corrugated board production can be accomplished by starting the gluing and advancing of the stopped single-sided corrugated cardboard 71 or 81 that has been put on standby in advance twice, and the gluing and advancing start operations This is performed in the same manner as the pasting and advancing operations for the single-sided cardboard 81 described above.

Furthermore, the switch from multi-sided corrugated board production to double-sided corrugated board production will be made by replacing either one of the single-sided two-sided corrugated boards 71 that is no longer necessary.
Alternatively, it is sufficient to cut and hold the paperboard 71 and stop the gluing and progress, and the cutting and holding operations, the gluing and the progress stopping operations are performed in the same manner as the cutting and holding operations, the gluing and the progress stopping operations of the single-sided cardboard 71 described above. be exposed.

3 In this way, the method of the present invention allows double-sided corrugated cardboard to be
For example, it is possible to switch freely from single-sided corrugated cardboard with A flute to B flute or vice versa, or from these double-sided corrugated cardboard to double-sided corrugated cardboard with A and B flutes, and vice versa. According to the present invention, switching operations in corrugated board manufacturing can be performed safely and without relying on human hands in a cramped space.
It has the advantage of being reliable, quick and automatic.

[Brief explanation of the drawing]

The drawings show an example of a device for the method of the present invention, and FIG. 1 is a diagrammatic side view thereof, FIGS. 2 and 3 are illustrations of switching operations by the device shown in FIG. 1, and FIG. 4 is a diagrammatic side view of the device. Diagrammatic side views of other examples of apparatus according to the method of the invention, FIGS.
FIG. 3 is an explanatory diagram illustrating a switching operation by the device shown in the figure. 1, 2... Gluing device, 12, 22... Gluing roll, 3... Pasting device, 31...
Heating plate, 32... Pressure and feed belt, 30... Inlet of device 3, 41A, 418, 42A, 42B, 43A, 43
B... Cutting device, 411, 412, 421, 4
22,432... Cutting blade, 51A, 51B, 5
2A, 52B, 53A, 53B... Holding device,
511, 512... A pair of armor members, 621,
531...Suction box, 532...Box 5
31 suction surface, 61A, 61B, 62A, 62B, 63
A, 63B... Feeding device, 611, 621
...Feed roll, 631...Compare belt, 632...
...Belt conveyor, 71,81...Single-sided cardboard, 70
, 810... Single-sided corrugated cardboard female end, 9...
...Lina paper. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 3

Claims (1)

[Claims] 1. Among a plurality of single-sided corrugated cardboards of different types guided from each single facer and passed through each glue machine (hereinafter referred to as series glue machine),
One or two single-sided corrugated boards are glued to the top of the corrugated board by a serial glue machine and laminated with separately supplied liner paper using a double facer to produce double-sided corrugated board or double-sided corrugated board, and then the first one or two single-sided corrugated boards When a different type of double-sided corrugated board or multi-sided corrugated board is manufactured by switching from corrugated board to new one or two single-sided corrugated boards of different corrugated types, the first single-sided corrugated board is transferred to the double facer at the bottom of the series glue machine. The smooth surface side is suctioned and held by suction means near the inlet of the
The lower end of the suction-held part is cut by the cutting means, and the feeding of the first single-sided corrugated board and gluing of its series glue machine are stopped, and feeding of a new single-sided cardboard is started, and the series glue machine is started. At the same time as gluing is started, the new single-sided corrugated cardboard is fed into the double facer by stopping suction of the suction means that had been suctioning the smooth side of the new single-sided cardboard near the inlet of the double facer at the lower end of the series glue machine. An automatic paper splicing method characterized by the following: