JP3370803B2 - Paper roll paper edge fixing device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paper edge fixing device for a paper roll. Toilet paper, newsprint, and the like are paper-made by a paper machine and wound into a large diameter, and then rewound by a rewinding machine into a paper roll having an outer diameter suitable for use by a user. At this time, the paper edge of the paper roll is adhered to the roll body so that the paper edge does not come off during transportation. The present invention relates to a fixing device for adhering and fixing the paper end of a paper roll thus wound into a roll to a roll body.

[0002]

2. Description of the Related Art A conventional paper roll end fixing device for a paper roll is disclosed in Japanese Patent Publication No. 5-24059. This device, in a device for gluing the ends of the paper material strips of a paper roll, is constrained to rotate in the same direction and at the same rotational speed, receives and rotates the paper roll and stops its rotation. At least a pair of support rollers supporting it during subsequent phases, a turret device supporting the pair of support rollers and displacing them from a position for receiving a paper roll and rewinding the paper edge to a stacking position, or each A device adapted to rotate the pair of support rollers until the part of the paper roll supported by the rollers is rewound, an air blowing device for opening the paper end, and a surface adapted to the open position adjacent to the pair or each pair of rollers. A device for holding the paper edge on the surface and a device for discharging the glue to the rewinding part, the pair or rollers of each pair rotating around a fixed axis. Mounted on a turret and configured to hold the roller axis of each pair in relation to said turret on a horizontal plane during rotation of the apparatus itself, and to which said pair or each pair of rollers is glued It is provided with a device for rocking the paper roll to unload it.

[0003]

However, the conventional device has the following problems. (1) While rotating the turret, the paper roll must be moved along the circumferential trajectory, and the rewind position, the gluing device, and the unloading position on the circumferential trajectory must be passed. The moving distance becomes long, and it takes time to fix the paper edge. (2) Since the turret, which is a large-sized member, is the main structural member, and two sets of two supporting rollers are attached to the turret and a powerful rotary drive device for rotating the turret, the device is considerably complicated and large-scale. Therefore, there are restrictions on the installation space. (3) Since it is a large-scale and heavy apparatus, it is not suitable for high-speed operation and its processing capacity is poor. (4) Since the loading and unloading of the paper rolls is performed by inclining the pair of support rolls, this apparatus requires the operations of completely different movements such as the rotation of the pair of support rolls (generated by the rotation of the turret) and the inclination. , Lack of continuity of operation, and therefore the processing speed must be low.

In view of the circumstances of the present invention, the structure is simple, compact and lightweight, suitable for high-speed operation, can be installed in a small installation space, the outer end of the paper roll can be easily opened and glued, and the paper roll movement can be easily performed. It is an object of the present invention to provide a paper edge fixing device for a paper roll having a short line and a high efficiency of paper edge fixing processing.

[0005]

A paper edge fixing device according to a first aspect of the present invention (claim 1) rolls and receives a paper roll and glues it .
The inclined passage for rolling and discharging and the inlet side of the inclined passage are provided to temporarily receive the supplied paper rolls and to feed the paper rolls one by one, and therefore, between the stop position and the open position. A pair of stoppers are provided at a notch position in the middle of the inclined passage and a moving stopper, and the paper roll sent from the stopper is sandwiched and the paper roll is rotated at the sandwiched position. A first log rotating means comprising a receiving roll and a supporting roll arranged and having a speed controller for changing the speed of one roll with respect to the other roll; and a paper roll held by the first log rotating means. An air nozzle that blows air onto the paper edge to open the paper edge, and a suction means that is provided on the lower surface of the inclined passage on which the opened paper edge rests, for sucking the paper edge to the surface of the inclined passage,
It consists of a glue spraying device that sprays glue onto the opened paper edge, and a pair of press rolls that are provided on the exit side of the inclined passage to sandwich the glued paper roll and rotate the paper roll at the sandwiched position. And a second log rotating means having a speed controller for changing the speed of one roll with respect to the other roll, and a conveying means provided below the second log rotating means. The paper edge fixing device of the second invention (claim 2) rolls and receives a paper roll, pastes it , and rolls it.
An inclined path for discharging Te, wherein provided on the entrance side of the inclined path, receiving a paper roll to be supplied once, for sending one by one paper roll, and a stopper movable between a stop position and an open position Provided in the middle of the inclined passage, and sandwiching the paper roll sent from the stopper,
Make a pair so that the paper roll is rotated at the sandwiched position.
Log rotation means comprising a receiving roll and a support roll arranged in such a manner and provided with a speed controller for changing the speed of one roll with respect to the other roll, and the paper held by the first log rotation means. A first air nozzle that blows air to the end of the roll to open the paper end, a drop hole formed between the receiving roll of the first log rotation unit and the inclined passage, and a paper opened on the inclined passage. A second air nozzle that blows air from the upper surface of the drop hole at the end to drop the paper edge into the drop hole, and glue on the surface of the paper roll that rolls on the upper surface provided between the drop hole and the inclined passage. And a pair of press rolls that are provided on the exit side of the inclined passage for sandwiching the glued paper roll and rotating the paper roll at the sandwiched position. Pair with the other roll A second log rotating means having a speed controller for shifting, characterized in that it consists of a transport means provided below the second log rotating means. The first and second
In the first log rotating means and the second log rotating means of the invention,
"To shift one roll relative to the other" means
It includes three control operations, "in the case of speeding up", "in the case of decelerating", and "in the case of stopping one roll and rotating the other roll".

[0006]

In the first aspect of the invention, the paper rolls fed one by one from the stopper are sandwiched and rotated by the first log rotating means,
When the paper end of the paper roll comes to the position where the air blown out by the air nozzle hits, the air is blown and the paper end is opened on the inclined passage, and when the paper end comes to the glue application position, the first log The rotation means is stopped, and the glue is applied to the upper surface of the paper edge by the glue spraying means. Next, when the support roll of the first log rotation unit is rotated, the paper roll is pushed out into the inclined passage, rolls and moves while winding the paper edge on the inclined passage, and reaches the second log rotation unit. The second log rotating means sandwiches and rotates the paper roll fed by the pair of pressing rolls. As a result, the paper edge is completely adhered to the roll body, and the paper edge is fixed. Then, the rotation of the presser roll is accelerated or delayed. As a result, the paper roll is ejected and sent onto the conveying means. In the second invention, the paper rolls fed one by one from the stopper are sandwiched by the first log rotating means and rotated in that state, and the paper end of the paper roll comes to a position where the air blown out by the first air nozzle hits. At this time, the paper edge blown with air is opened above the notch and the gluing device, and the second air nozzle further blows air toward the notch, so that the paper edge goes into the notch. Dropped. Next, when the rotation of the support roll of the first log rotating means is accelerated or the rotation of the receiving roll is slowed, the paper roll is ejected by the rotation winding and rolls on the gluing device. At this time, glue is applied to the roll body of the paper roll. Further, the paper roll rolls on the exit side on the inclined path, and the paper edge is adhered to the glue on the roll main body during this time. Further, when the paper roll sent by the second log rotating means is sandwiched and rotated in that state, the paper edge is completely adhered to the roll body.
Then, if the rotation of one of the presser rolls is accelerated or delayed, the paper roll is kicked out and sent to the conveying means. The main constituent elements of the first and second inventions are the first and second log rotating means, both of which are composed of a pair of rolls, and these rotate only at fixed positions and do not revolve. . Therefore, a large member such as a turret is not necessary, and it is simple and lightweight, and can be installed even in a narrow space. The operation of each member of the first and second inventions is mainly only the rotation of the roll, and high speed operation is possible. Further, since the movement locus of the paper roll is also a substantially straight line and its flow line is short, the processing speed can be increased also from this point.

[0007]

Embodiments of the present invention will now be described with reference to the drawings. (First Embodiment) FIG. 1 is a side view of an embodiment (first embodiment) of the first invention. In the figure, reference numeral 1 denotes an inclined passage, which is a plate or rail-shaped member and is inclined so that the entrance side (left side in the figure) is high and the exit side (right side in the figure) is low. The paper roll R rewound by a rewinding machine (not shown) is supplied from the entrance side.

A stopper 2 is provided above the entrance side of the inclined passage 1, and the stopper 2 rotates up and down.
When the paper roll R is rotated downward, it is in a stop position (indicated by a solid line) to receive the paper roll R, and when it is rotated upward, it is in an open position (indicated by a dotted line) for sending the paper roll toward the first log rotating means.

A notch is formed in a substantially central portion of the inclined passage 1, and a first log rotating means 3 including a receiving roll 4 and a supporting roll 5 is provided at that position. The upper surface of the receiving roll 4 faces the cutout portion and has substantially the same height as the surface of the inclined passage 1. The supporting roll 5 is located above the receiving roll 4 with a distance shorter than the diameter of the paper roll R. ing. Reference numeral 6 is an axial distance device between the support roll 5 and the receiving roll 4.
By adjusting the inter-axis distance to be shorter than the outer diameter of the paper roll R by the adjusting device 5, the first log rotating means 3 can sandwich the paper roll R and can rotate the paper roll R in that state. it can. The rotation directions of the receiving roll 4 and the supporting roll 5 are the same as indicated by the arrow a, and therefore, when the paper roll R sandwiched between the two rolls 4 and 5 is rotated, the spot (that is, the sandwiched position) is rotated. It spins around. The support roll 5 is provided with a rotation speed control device (not shown), and when the rotation speed of the support roll 5 is increased, the paper roll R is pushed out toward the delivery side (right side in the figure). The rotation of the receiving roll 4 may be reduced instead of increasing the rotation of the support roll 5. Further, the receiving roll 4 may be stopped and only the supporting roll 5 may be rotated.

The support roll 5 is a roll in which several grooves 5a are formed at intervals in the axial direction, and an air nozzle 6 is inserted into the groove 5a. This air nozzle 6
Is the paper edge pe of the paper roll R sandwiched by the first log rotating means 3.
It is provided to blow air on and open the paper edge pe. The paper edge pe opened by the air nozzle 6 is placed on the upper surface of the suction box 7. The upper surface of the suction box 7 may form a part of the inclined passage 1, and conversely, the inclined passage is formed by the suction box 7.
The upper surface of the above may be configured. A suction hole 7a is formed on the upper surface of the suction box 7, and the suction box 7 is connected to a vacuum pump (not shown) to apply a negative pressure to the suction hole 7a. Due to this negative pressure, the opened paper end pe is positioned on the inclined passage 1 without fluttering and without waviness or wrinkling.

Reference numeral 8 denotes a photoelectric tube, which is used as a sensor for irradiating the opened paper edge pe with light and receiving reflected light to confirm the presence of the paper edge pe. When the opened paper edge pe extends and receives the irradiation light from the photoelectric tube 8, the first log rotation means 3 is rotated to rotate the paper roll R, and the paper edge pe is rotated.
When the paper end pe is wound up and reaches a position where it does not receive the irradiation light, the first log rotating means 3 is stopped and the paper end pe is stopped at the glued position. At a position above the suction hole 7a of the suction box 7, the glue jet nozzle 9 travels in the width direction of the paper roll R (the front and back direction of the paper surface) to jet the glue to the paper edge pe.

On the exit side of the inclined passage 1, a second log rotating means is provided.
Ten are provided. The second log rotating means 10 comprises a pair of press rolls 11 and 12, and the press roll 11 and the press roll.
The distance between 12 is slightly shorter than the outer diameter of the paper roll R. Reference numeral 13 is an axial distance adjusting device between the press rolls 11 and 12, and when the axial distance is adjusted to be shorter than the outer diameter of the paper roll R by this adjusting device 13, the second log rotating means 10 sandwiches the paper roll R. It is possible to rotate the paper roll R in that state. The press rolls 11 and 12 rotate in the same arrow direction, and the paper roll R that is sandwiched between the rolls 11 and 12 and rotates rotates at that position. The presser roll 12 is provided with a rotation speed control device (not shown). When the presser roll 12 is rotated faster, the paper roll R is squeezed out and falls. The press roll 11 shown in the figure below may be provided with a rotation speed control device so that the paper roll R can be pushed downward even if the rotation speed is reduced. Further, one roll may be stopped and the other roll may be rotated to eject the paper roll. Reference numeral 14 is a well-known feed conveyor or chute, which is a conveyance means for feeding the paper roll R, of which the fixing of the paper edge is completed, to the packaging station or the like which is the next step.

Next, the paper edge fixing work in this embodiment will be described with reference to FIGS. As shown in FIG. 4, when the stopper 2 rises to the open position, the paper roll R rolls toward the first log rotating means 3 and is sandwiched between the receiving roll 4 and the support roll 5 as shown in FIG. Be done. Here, the receiving roll 4 and the support roll 5 are rotated, the paper roll R is rotated in the same direction, and air is blown out from the air nozzle 6. Edge of paper
When pe receives the air, the paper edge pe opens as shown by the dotted line and is placed on the inclined passage 1. The paper edge pe opened above the inclined path 1 is sucked by the suction box 7, and the paper roll R is further rotated by the first log rotating means 3 in a state where resistance is given to the paper edge pe. Due to the rotation of the paper roll R, the paper edge pe is gradually rolled up in the roll body, and the length of the paper edge pe also becomes short. When the edge of the paper edge pe is no longer detected by the photoelectric tube 8, the rotation of the first log rotation means 3 is stopped and the glue is ejected to the entire width on the paper edge pe by the glue ejection nozzle 9 as shown in FIG.

When gluing is completed, as shown in FIG.
When the speed of the support roll 5 is increased, the paper roll R is pushed out,
Roll on the inclined passage 1 toward the exit side. At this time,
The paper edge pe is lightly adhered to the roll body. The pressure rolls 11 and 12 of the second log rotation means 10 are output from the output side end of the inclined passage 1.
When the paper roll R is sandwiched between them, at the same time, the paper roll R is rotated in the same direction by the pressing rolls 11 and 12, and the paper edge is completely adhered and fixed to the roll main body during this time. Then, after fixing, when the presser roll 12 is accelerated, the paper roll R
Is ejected downward and dropped onto the feed conveyor 14.
This completes the paper edge fixing work, and
It is sent to the packaging station etc. by 14.

In the above embodiment, the main moving components are the first and second log rotating means 3 and 10, both of which are composed of a pair of rolls 4, 5, 11 and 12, which are fixed positions. You don't have to revolve around, just rotate around. Therefore, a large member such as a turret is not necessary, and it is simple and compact, and can be installed even in a narrow space. The operation of the apparatus of this embodiment is mainly performed by the roll 4,
Only 5, 11, 12 rotations, high speed operation is possible,
The movement locus of the paper roll R is also a substantially straight line, and its flow line is also short. Therefore, the paper edge processing capability can be increased.

(Second Embodiment) FIG. 6 is a side view of an embodiment (second embodiment) of the second invention. In the figure, the inclined passage 1, the stopper 2, the first log rotating means 3, and the second log rotating means are the same as those in the first embodiment, so the same reference numerals are given and the description thereof is omitted.

The following is a description of the structure peculiar to the second embodiment. A drop hole for dropping the paper edge pe between the first log rotation means 3 and the inclined passage 1 in the immediate vicinity of the exit side of the receiving roll 4.
15 is formed, and a glue applicator 16 is attached on the exit side of the drop hole 15. Reference numeral 17 is a nozzle of the glue applying device, the tip of the nozzle is formed in an elongated slit shape in the width direction of the paper roll R, and the glue is pressure-fed by a pump or the like. Further, the nozzle 17 is moved up and down by about 5 mm by an appropriate elevating means, and when raised, it slightly projects from the surface of the inclined passage 1.

Reference numeral 21 denotes a first air nozzle, which is passed through the annular groove 5a of the support roll 5 and its tip is close to the outer periphery of the paper roll R, and the paper edge is oriented in the opening direction. Also, 22
Is a second air nozzle and is attached so as to blow air toward the drop hole 15. Reference numeral 23 denotes a receiving plate provided below the receiving roll 4 of the first log rotating means 3, and a photoelectric tube 24 is attached to the back surface side thereof. This photoelectric tube
Reference numeral 24 is for confirming the presence or absence of the paper edge pe, as in the photoelectric tube 8 of the first embodiment.

Next, the paper edge fixing operation in this embodiment will be described with reference to FIGS. As shown in FIG. 9, when the stopper 2 rises to the open position, the paper roll R rolls toward the first log rotating means 3, and as shown in FIG.
It is sandwiched between the receiving roll 4 and the supporting roll 5. Here, the receiving roll 4 and the supporting roll 5 are rotated to rotate the paper roll R in the same direction, and air is blown out from the first air nozzle 21. As a result, the paper edge pe is opened as shown by the dotted line and placed on the inclined passage 1. Then, as shown in FIG.
Air nozzle 22 strongly drops air and blows it in the direction of hole 15,
The paper edge pe is dropped into the drop hole 15 so as to be along the receiving plate 23. At the same time, the paper roll R is rotated by the first log means 3, and the paper edge pe is gradually wound around the roll main body. When the length of the paper edge pe becomes short and the edge of the paper edge pe is no longer detected by the photoelectric tube 24, the receiving roll 4 is decelerated or stopped, and the paper roll R is directed to the exit side, as shown in FIG. Kick out. At the same time gluing device
When the nozzles 17 of 16 are slightly raised, glue is applied to the roll body rolling on the nozzles. Then, the paper roll R moves on the inclined passage 1 toward the second log rotating means.

A pair of press rolls 1 of the second log rotating means 10.
The paper roll R is sandwiched between 1 and 22, and when it is rotated several times there, the paper edge is strongly adhered and fixed to the glue of the roll body. Then, after the fixing is completed, when the pressing roll 12 is accelerated, the paper roll R is squeezed out downward and dropped onto the feed conveyor 14. This completes the paper edge fixing work, and the conveyor 14 then sends the work to a packaging station or the like.

Also in the present embodiment, the main constituent elements that move are the first and second log rotating means 3 and 10, and since the movement locus of the paper roll is close to a straight line and the movement distance is short, the paper edge fixing processing capability is also provided. Has the advantage of being higher. In particular, in the present embodiment, it is not necessary to stop and stop the rotation of the paper roll R at the time of applying the glue, and since it can be performed while the rotation and the movement are continuous, an excellent effect that the processing capacity is further enhanced is exhibited.

[0022]

According to the first and second aspects of the invention, the structure is simple, compact and lightweight, suitable for high speed operation, can be installed in a small installation space, and the work of opening and gluing the outer end of the paper roll is easy. It is possible to provide a paper end fixing device for a paper roll having a short flow line of the paper roll and a high efficiency of the paper end fixing process.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment (first embodiment) of the first invention.

FIG. 2 is an explanatory diagram of a paper edge fixing operation in the first embodiment.

FIG. 3 is an explanatory diagram of a paper edge fixing operation in the first embodiment.

FIG. 4 is an explanatory diagram of a paper edge fixing operation in the first embodiment.

FIG. 5 is an explanatory diagram of a paper edge fixing operation in the first embodiment.

FIG. 6 is a side view of an embodiment (second embodiment) of the first invention.

FIG. 7 is an explanatory diagram of a paper edge fixing operation in the second embodiment.

FIG. 8 is an explanatory diagram of a paper edge fixing operation in the second embodiment.

FIG. 9 is an explanatory diagram of a paper edge fixing operation in the second embodiment.

FIG. 10 is an explanatory diagram of a paper edge fixing operation in the second embodiment.

[Explanation of symbols]

1 Inclined Path 2 Stopper 3 1st Log Rotating Means 4 Receiving Roll 5 Supporting Roll 6 Air Nozzle 7 Suction Box 8 Photoelectric Tube 9 Glue Jet Nozzle 10 2nd Log Rotating Means 11 Pressing Roll 12 Pressing Roll 13 Axial Distance Adjusting Device 14 Feed Conveyor 15 Pit hole 16 Glue coating device 17 Glue coating nozzle 21 First air nozzle 22 Second air nozzle 23 Catch plate 24 Photoelectric tube

─────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-6-80287 (JP, A) JP-A-5-270708 (JP, A) JP-A-62-240245 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B65H 19/29

Claims (2)

(57) [Claims] 1. A paper roll is rolled and received , glued and rolled.
An inclined passage for peeling and discharging, and provided on the inlet side of the inclined passage for temporarily receiving the supplied paper rolls and feeding the paper rolls one by one,
A stopper that moves between a stop position and an open position and a cutout position in the middle of the inclined passage are provided. The paper roll sent from the stopper is sandwiched, and the paper roll is held at the sandwiched position. To rotate , to pair
A first log rotating means comprising a receiving roll and a supporting roll arranged and having a speed controller for changing the speed of one roll relative to the other roll; and a paper roll held by the first log rotating means. An air nozzle that blows air onto the paper edge to open the paper edge, and a lower surface of the inclined passage on which the opened paper edge rests,
The suction means for sucking the paper edge to the surface of the inclined path, the glue spraying means for spraying the glue to the opened paper edge, and the exit side of the inclined path are provided to sandwich the glued paper roll. A second log rotating means including a pair of press rolls for rotating the paper rolls at the sandwiched position and provided with a speed controller for changing the speed of one roll with respect to the other roll, and below the second log rotating means. A paper edge fixing device for a paper roll, comprising: a conveyance means provided. 2. A paper roll is rolled and received , glued and rolled.
An inclined passage for peeling and discharging, and provided on the inlet side of the inclined passage for temporarily receiving the supplied paper roll and feeding the paper rolls one by one,
A stopper that moves between a stop position and an open position and an intermediate portion of the inclined passage are provided to sandwich the paper roll sent from the stopper and rotate the paper roll at the sandwiched position . A first log rotation means comprising a receiving roll and a support roll arranged so as to form a speed controller for changing the speed of one roll with respect to the other roll, and being held by the first log rotation means. A first air nozzle that blows air onto the paper edge of the existing paper roll to open the paper edge; a drop hole formed between the receiving roll of the first log rotating means and the inclined passage; and an opening on the inclined passage. Air is blown from the upper surface of the drop hole of the opened paper edge to drop the paper edge into the drop hole.
An air nozzle, a glue applying means provided between the drop hole and the inclined passage for applying adhesive to the surface of a paper roll rolling on the upper surface thereof, and a glued paper provided on the exit side of the inclined passage. A second log rotation means comprising a pair of press rolls for sandwiching the roll and rotating the paper roll at the sandwiched position, and having a speed controller for changing the speed of one roll with respect to the other roll, and the second log. A paper end fixing device for a paper roll, comprising: a conveying means provided below the rotating means.