JPS647934B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the information industry, particularly to a roll paper winding end cutting device in a columnar packaging machine for thermal roll paper used in facsimile, general roll paper, film, etc. For example, in a packaging device that uses roll paper as an object to be packaged, as a preparation step before covering the roll paper with wrapping paper, the end of the roll paper is shaped into the desired shape, and the roll paper is wrapped. We tried to remove the soiled parts at the ends in advance and to adjust the position of the rolled ends to the optimal position so that they would not come undone when the rolled paper is automatically transferred onto the wrapping paper. It is something to do.

[Conventional technology]

Conventionally, the winding ends have been shaped into a desired shape by hand or by using a cutting device completely separate from the packaging device. The same applies to the removal of the soiled portion at the end of the winding.

To prevent unraveling that occurs when the roll paper is moved on the packaging machine, adhesive tape is manually applied to the end of the roll to prevent it from unraveling.

[Problem that the invention seeks to solve]

Labor saving and manpower saving, which have been particularly demanded in recent years, do not simply require individual automatic machines, but automation as an integrated line.

According to the conventional method, after shaping the end of the roll paper into the desired shape and removing soiled parts from the end of the roll, the roll paper was manually fed to the packaging equipment, which reduced the amount of labor required. Problems included costs and uncertainty in supply operations.

Also, if you use adhesive tape to prevent the end of the roll paper from unraveling, a small amount of the adhesive will remain on the roll paper when the tape is removed, so if you place it in the facsimile machine as it is, it will leak inside the machine. This has caused problems such as adhesion and malfunctions. In addition, in order to transfer the end of the roll paper in a free state onto the wrapping paper without fixing it with adhesive tape, there is an optimal position for the end of the roll, and the end of the roll at the time of cutting described above must be moved to that position. Must be.

[Means for solving problems]

In the present invention, a fixed-pitch intermittent feeding supply conveyor, which is a component of the packaging device, has a roll paper end cutting and positioning device built therein and is synchronized with the automatic cycle of the packaging machine.

In order to remove the soiled portion at the end of the roll paper and to make the end shape into a desired shape, a roller that lifts the roll paper and can be moved up and down is provided, which operates at the stop position of the intermittent feed supply conveyor.

[Effect]

When the roller is raised, the supporting action of the lever for preventing the end of the roll paper from unraveling of the roll paper receiving attachment provided on the supply conveyor is released, the cutter holder is positioned below the top surface of the roller, and the roller is rotated. Then, the end of the roll paper passes over the cutter holder and is fed out to a required length, and then the roll paper on the cutter holder is cut with a cutter having a desired shape. After cutting the end of the roll, the roll paper is rewound by rotating the roller for a predetermined time in the opposite direction to the direction in which it was sent out, so that the end of the roll is at a desired position.

〔Example〕

The invention will be explained with reference to embodiments of the apparatus shown in the drawings.

FIG. 1 shows a perspective view of roll paper, which is one of the objects to be packaged by the columnar packaging machine. A rolled paper 1 wound around a paper tube 2 is pasted at its winding end 1A with an adhesive tape 3 to prevent it from unwinding.

FIG. 2 is a perspective view of a roll paper of a work to be packaged to which the present invention relates. The end of the roll paper 1 wound around the paper tube 2 forms a trapezoid with a straight portion 1C and a diagonal line portion 1B. Furthermore, in this case, the first
Adhesive tape 3 as shown in the figure is not used.

Regarding the entire columnar packaging machine, please refer to the patent application filed in 1983.
Since this is the same as the columnar packaging method and apparatus described in No. 186382, FIG. 3 shows a side view of only the columnar body supply conveyor, which is one component of the columnar packaging machine. A supply conveyor 5 is stretched over a machine body 4 provided in front of a slitter device (not shown). The supply conveyor 5 is a constant pitch intermittent feed conveyor, and attachments 5A, 5A, . . . on which the roll paper 1 is placed are provided at regular intervals.
A rotating and lifting device 6 is provided below the second stop position b of the supply conveyor 5, and an end cutting device 7 is provided above. In the figure, 8 is a chute, 9 is an exit side of the slitter device, and 10 is a pusher.

When the roll paper 1 to be supplied to the packaging machine is transferred to the output side 9 of a slitter device (not shown) located upstream of the column packaging machine, the roll paper 1 is moved in the direction of the arrow by the pusher 10. It is pushed out, rolls on the chute 8, and rides on the attachment 5A provided on the supply conveyor 5.

FIG. 4 is a state diagram when the roll paper 1 is on the outlet side 9 of the slitter.
In order to prevent the roll paper 1 from unraveling, the winding direction and position of the roll paper 1 always face forward as shown in FIG. 4, and not as the winding end 1A of FIG. 5.

In other words, when the roll paper 1 rolls on the chute 8, if it is as shown in Fig. 4, it will roll as shown in Fig. 6 and the end 1A of the paper will always try to form a roll; When the winding is as shown in FIG. 5, the winding end 1A is unraveled by the distance it has rolled, as shown in FIG. 7.

Roll paper 1, which was first placed on point a, is sequentially placed at point b.
The point moves intermittently by the point c and the pitch p.

FIG. 8 shows a state diagram of the attachment 5A and the lifting device 6 when the roll paper 1 moves to point b. A lever 12 is pivotally attached to the front part of the attachment 5A so as to swing about a shaft 11, and the lever 12 is brought into light contact with the roll paper 1 by a coiled spring 13.

A rod 6b is attached to the body 6a of the rotating and lifting device 6.
is supported so as to move up and down, and this rod 6b is connected to the cylinder 14 via a lever 15 so as to move up and down. At the upper end of this rod 6b is an elevating frame 1.
A pair of rollers 17, 17 are supported on this elevating frame 16, and these rollers 17 are connected to a motor 18 via a belt 19 and a belt 20 so as to be able to rotate forward and backward.

When the supply conveyor 5 moves, that is, when the attachment 5A moves, the lower end 12A of the lever 12 traces a trajectory X ₁ , but the roller 17 of the rotating and lifting device 6
The top edge of is located a distance l ₁ below it.
Installed in _X2 .

After the roll paper 1 has stopped at point b, the rod 6b of the rotating and lifting device 6 is raised by the cylinder 14 as shown in FIG. The lower end 12A of the lever 12 provided on the attachment 5A is pushed up and the lever 12 is swung in the direction of the arrow against the coiled spring 13. After swung, the positional relationship between the lever 12 and the end 1A is a distance l. _2Keep at a distance. Next, the rollers 17, 17 provided on the elevating frame 16 lift the roll paper 1 placed on the attachment 5A from below, further rise, and stop at the position shown in the figure.

As shown in FIG. 9, above the lever 12, a cutter pedestal 21 and an auxiliary feed conveyor 24, which are components of the winding end cutting device 7, are provided so as to be lowered.
In addition, above each of them are trapezoidal cutters 2.
2, and a vacuum head 23 are provided to be lowered independently. (Depending on the quality of the paper, the auxiliary feed conveyor 24 may be a mere guide plate.) FIGS. 10 to 16 show diagrams explaining the principles of the winding end cutting operation and winding end positioning operation. Next, each operation will be explained in order.

As shown in FIG. 10, the position of the winding end 1A of the roll paper 1 on the roller 17 varies depending on the diameter of the roll paper 1 or the rolling length of the chute 8.
It may be at position A′ or it may be at position 1A″,
Irregular.

Now, as mentioned above, when the roller 17 rises and lifts the roll paper 1 and stops at the upper limit, confirm this and move the cutter pedestal 21 and the auxiliary feed conveyor 24.
is lowered to a position lined up with roller 17. At this time, the upper surface of the roller 17 is higher than the upper surface of the cutter holder 21. After the lowering is completed, the roller 17 starts rotating in the direction of the arrow by the motor 18.

As shown in FIG. 11, when the roller 17 starts rotating in the direction of the arrow, the roll paper 1 rotates clockwise and the nozzle 25 blows out air, and when the winding end 1A reaches the position of approximately 1A ₁ . Unravel the end of the roll and place it in position 1A ₂ as shown in the diagram. At this time, the roll paper 1 blocks light from the phototubes 26, 26, and this signal causes the motor 18 to stop the rotation of the roller 17.

Next, as shown in FIG. 12, the roller 17 is rotated in the opposite direction in the direction of the arrow, the roll paper 1 is rotated counterclockwise, and the winding end 1A ₃ of the roll paper is sent out _. It is sent out by passing over the In this way, it is fed out for the required length, and when the winding end 1A ₃ blocks the light from the phototubes 27, 27, the rotation of the roller 17 is stopped.

As shown in FIG. 13, the cutter 22 and the vacuum head 23 are lowered, the cutter 22 cuts the roll paper 1 into a trapezoidal shape, and the vacuum head 23 sucks the winding end 1A ₃ of the roll paper 1 which is no longer needed.

FIG. 14 is a top view of the state shown in FIG. 13. A replaceable synthetic resin holder 21A is attached to the cutter holder 21 and receives the trapezoidal cutter 22. By cutting at this time, the new leading edge _1A4 of the roll paper 1 forms a trapezoid efgh.

The distance l ₃ from the center of the roll paper 1 to the new winding end 1A ₄ and the length l ₄ of the paper to be cut and cut can be made constant by determining the position of the cutter 22 and the position of the phototube 27 in advance. .

Next, as shown in FIG. 15, the cutter 22, the cutter pedestal 21, the auxiliary feed conveyor 24, and the vacuum head 23 move up, and the vacuum head 23 continues to dispose of the unnecessary winding end 1A at another location (not shown). Move ₃ and release the suction. The roller 17 rotates again by a predetermined number of rotations in the rewinding direction indicated by the arrow, and the roll paper 1 rotates clockwise.
It stops when the winding end 1A ₄ reaches the position of point b. At this time, the nozzle 28 blows air out to the winding end 1.
Prevent A ₄ from unraveling naturally. Since the distance l ₃ is constant, the winding end 1A ₄ is b from the cut position.
The moving distance up to the point is constant, and therefore, by regulating the number of rotations of the roller 17 with a timer, the winding end _1A4 can be stopped at the point b.

Next, as shown in FIG. 16, the lifting frame 16 is lowered to its original position, the roll paper 1 is placed on the attachment 5A again, and the lever 12 is returned to the direction of the arrow by the coil spring 13 to the end of the roll _1A4 . Touch lightly,
Prevent its unraveling. Therefore, while maintaining this state, the roll paper 1 can be moved to the next stage at point c by the operation of the supply conveyor 5.

In addition, in the above explanation, if there is sufficient space above the supply conveyor, the cutter holder 21
Alternatively, the auxiliary feed conveyor 24 may be fixed, and the stroke of the lifting frame 16 may be lengthened instead.
It is also possible to set the roller 17 to the relative position shown in FIG. 10 when it is raised, and to perform the same operations thereafter.

〔effect〕

Since the device according to the invention is integrated as part of the packaging machine, its automatic operation is carried out synchronously with the packaging machine. Therefore, work that was conventionally done manually is automated, so production can be ensured and efficiency is improved.

Furthermore, since the end portion of the roll paper is partially cut and removed, the soiled portion is reliably removed, so that the roll paper can be immediately set in the facsimile machine.

Furthermore, if the shape of the end of the roll paper is made into a trapezoidal shape, for example, there is an effect that the operation becomes much easier when setting the paper in a facsimile machine.

Furthermore, since the position of the end of the roll can be kept at a fixed position, the position of the end of the roll can be adjusted to the optimal position to prevent the end from unraveling when automatically transferring the roll paper onto the wrapping paper. It is something.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a conventional roll paper before packaging, FIG. 2 is a perspective view of a roll paper according to the present invention before packaging,
FIG. 3 is an explanatory side view of the supply conveyor section of the columnar packaging machine related to the present invention, FIGS. The figure is a side view of an embodiment of the present invention.
FIG. 9 is a side view of the raised state, and FIGS. 10 to 16 are explanatory views of the operation. 1... Roll paper, 1A... Roll paper winding end, b...
... Stop position, 5 ... Supply conveyor, 17 ... Roller, 21 ... Cutter pedestal, 22 ... Cutter.

Claims (1)

[Claims] 1. In a packaging device that uses columnar paper rolls as objects to be packaged, a roller that can be raised and lowered is provided that operates at a stop position of an intermittent feed supply conveyor, and when the roller is raised, the upper surface of the roller is cut. After making sure that it is above the top surface of the cradle, rotate the roller, pass the end of the roll paper over the cutter cradle, feed it to the required length, and then use a cutter of the desired shape to remove the roll on the cutter cradle. A roll paper winding end cutting device for a columnar packaging machine, characterized in that it cuts paper. 2. In a packaging device that uses columnar paper rolls as objects to be packaged, a roller that can be raised and lowered is provided that operates at the stop position of an intermittent feeding supply conveyor, and when the roller is raised, the upper surface of the roller is higher than the upper surface of the cutter pedestal. After making sure that A roll paper end cutting device for a columnar packaging machine, characterized in that the end position of the end of the roll paper after cutting is brought to a predetermined position by rotating a roller in an unwinding direction by a predetermined number of revolutions.