JPH0753545B2 - Core residual paper removal 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 core residual paper removing device capable of rewinding and removing a residual paper from a core having a residual paper.

[0002]

2. Description of the Related Art Residual paper is removed from a core with residual paper and the core from which the residual paper is removed is reused. The remaining paper is often removed manually even now, but as a mechanized device, the device shown in FIG. 6 is known. The conventional core residual paper removing device shown in FIG. 6 has a rewinding conveyor 30 that is conveyed in the rewinding direction.
And a rewinding roll 3 paired with a rewinding conveyor roll 31 arranged on the rewinding direction side of the rewinding conveyor 30.
2 and the rewinding conveyor 3
By supplying the cores A with residual paper to the respective 0s, the cores A with residual papers supplied by the rewinding conveyor 30 and the rewinding roll 32 abutting the rewinding portion of the rewinding conveyor. The remaining paper is rewound in the direction of arrow A to remove the remaining paper from the core.

However, in the conventional core residual paper removing device shown in FIG. 6, since the rewinding direction of the supplied residual paper core is always the same direction, the residual paper supplied to the rewinding conveyor is removed. The remaining paper of the core must always be fed in such a way that it can be rewound.

Further, in the case of rewinding and removing the residual paper of the core with residual paper having the irregular rewinding paper end portion as shown in FIG. 7, in the conventional core residual paper removing device, this irregular rewinding is performed. Since it is difficult to grasp the entire paper edge part by the rewind roll part, for example, only part of the projecting rewind paper edge part caught by the rewind roll part is rewound, and it is not caught by the rewind roll part. There was a phenomenon that the rewound paper edge part of was not rewound and was left unwound around the core, and the remaining paper could not be reliably removed from the core.

[0005]

DISCLOSURE OF THE INVENTION The present invention is mainly provided to improve the adverse effects of the conventional core residual paper removing device. When supplying the core with residual paper to the rewinding section, the residual paper is removed. It is an object of the present invention to provide a core residual paper removing device that does not require uniform supply of the winding direction, that is, the supplied residual core with residual paper can be rewound either right-handed or left-handed.

Furthermore, according to the present invention, even when the residual paper of the core with residual paper having the irregular end of the rewound paper is rewound and removed as shown in FIG. (EN) Provided is a core residual paper removing device in which an entire area of an end portion can be surely grasped by a rewinding roll portion and can be reliably rewound from the entire area of an end portion of an unwound paper sheet.

[0007]

In order to achieve the above object, the core residual paper removing device of the present invention corrects the cores with residual paper supplied one by one so that the residual paper of the core with residual paper can be rewound. A pair of rewinding rolls that are supported so as to be able to rotate reversely, a pair of delivery rolls that deliver the remaining paper that is rewound by the rewinding roll to the discharge side, and The present invention is characterized in that a feeding paper edge detection sensor is provided which detects presence or absence and sends a drive command for forward or reverse rotation capable of rewinding to the rotation drive unit of the rewinding roll based on this detection. It is what

In order to achieve the above object, the core residual paper removing device of the present invention rotatably supports the cores with residual paper supplied one by one so as to rewind the residual paper of the core with residual paper. A pair of rewinding rolls and a pair of feeding rolls for feeding out the residual paper rewound by the rewinding rolls to the discharge side are provided, and the whole roll peripheral surface of the rewinding roll is left protruding from the peripheral surface. The present invention is characterized in that a needle device including a large number of needle members that can move forward and backward so that the entire area of the rewound paper end portion of the paper can be grasped by the roll peripheral surface is provided.

Further, the needle device includes an elastic tube member mounted so as to be expandable / contractible in the roll circumferential surface direction of the rewinding roll by the pressure of the air introduced from the inside of the roll tube of the rewinding roll through the air ventilation hole. A needle member projecting from a needle support supported by the elastic tube member, and the needle member is movable forward and backward so as to project from the roll peripheral surface of the rewinding roll by expansion and contraction of the elastic tube member. It is characterized by being configured in.

Further, a press roll for rotatably pressing the core with residual paper rotatably supported by the rewind roll is provided.

Further, a slitter blade is provided on one of the feeding rolls and a slitter blade receiving portion is provided on the other feeding roll so that a cutting cut along the feeding direction of the residual paper fed from the feeding roll can be formed on the feeding roll. It is characterized by that.

[0012]

According to the core residual paper removing device configured as described above, whether the supplied residual paper of the core with residual paper is right-handed or left-handed, the core is rotated in a certain rotation direction to rewind the residual paper. The rewinding roll thus detected detects the presence or absence of the feeding paper end portion of the residual paper which is unwound by the rewinding roll and is fed from the feeding roll, and based on this detection, the feeding paper end portion of the remaining paper is detected. When the presence is detected, it is in the same rotation direction as the current state,
On the other hand, if the presence of the end of the remaining paper fed out cannot be detected, the rotation drive unit of the rewinding roll can be rewound in the normal rotation or reverse rotation direction so that the rotation direction is opposite to the current rotation direction. By the action of the feeding paper edge detection sensor that sends a command, the rotation direction is controlled to allow rewinding. Therefore, it is possible to rewind whether the remaining paper of the core with remaining paper supplied to the rewinding roll is right-handed or left-handed.

Further, according to the core residual paper removing device constructed as described above, the rewound roll supporting the unwound core supplied to the rewound roll supports the entire area of the roll peripheral surface from the roll peripheral surface. By providing a needle device having a large number of needle members that can be moved forward and backward so that the entire area of the rewound paper end portion of the remaining paper can be grasped by the roll peripheral surface, a large number of parts protruding from the entire peripheral surface of the roll can be provided. The needle member is lightly stuck to the entire area of the rewound paper end portion of the residual paper, so that the entire area of the roll peripheral surface of the rewind roll reliably grasps the entire area of the rewound paper end portion of the residual paper. The end of the rewinding paper, which is firmly stuck to the entire area of the roll peripheral surface by being lightly pierced by a large number of needle members at the advanced position protruding from the roll peripheral surface of the rewinding roll, When it is unwound from the entire region, it is separated from the roll peripheral surface of the rewinding roll by the payout roll having the roll peripheral surface of this rewinding roll and the roll peripheral surface interlocked with each other, and is fed out by the payout roll. When the feeding of the end of the rewinding paper is started, the needle member is moved backward to a position where it does not project from the roll peripheral surface of the rewinding roll. The forward / backward movement of the needle member is
The air pressure put in the roll tube of the rewinding roll acts so as to expand the elastic tube member that is expandable and contractible in the roll circumferential surface direction of the rewinding roll through the air vent hole in the roll circumferential surface direction, By this expansion action, the needle member projecting from the needle support member supported by the elastic tube member is advanced to a position projecting from the roll peripheral surface of the rewinding roll. The needle member at the advanced position contracts the elastic tube member expanded in the roll peripheral surface direction to the original position by releasing the air pressure put in the roll tube of the rewinding roll, and does not protrude from the roll peripheral surface. It is moved back to the position.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an overall schematic front view of a core residual paper removing device of the present invention. In FIG. 1, reference numeral A indicates a core with remaining paper, and reference numeral B indicates a core from which the remaining paper has been removed.
Reference numerals 1 and 1 denote a pair of rewinding rolls 1, and the rewinding rolls 1 and 1 are arranged so as to be separated from each other, and a feed table 2 inclined so as to be capable of supplying to the rewinding rolls 1 and 1 and The cores A with residual paper supplied one by one by the one-by-one feeding device 3 provided in the middle of the feed base are rotatably supported so that the residual paper of the cores with residual paper can be rewound.
Reference numeral 4 is a press roll for pressing the core A with residual paper rotatably supported by the rewinding rolls 1, 1 in the rewinding roll direction. The rewinding rolls 1, 1 can be driven to rotate in the forward and reverse directions, and when the core A with a residual paper wound in the clockwise direction, that is, the clockwise direction is supplied to the rewinding rolls 1, 1. Rewind roll 1,
1 is driven to rotate in the direction opposite to the clockwise direction as indicated by the solid line, and the left-handed winding, that is, the core A with the residual paper wound in the opposite direction to the clockwise direction is wound on the rewinding rolls 1, 1. When supplied, this rewind roll 1,1
Is rotated clockwise as indicated by the one-dot chain line.

Reference numerals 5 and 5 are a pair of feeding rolls for feeding the residual paper rewound by the rewinding rolls 1, 1 to the discharge side. Reference numeral 6 is a feeding paper edge detection sensor,
The feeding paper edge detection sensor detects the presence or absence of the feeding paper edge of the residual paper fed by the feeding rolls 5 and 5, and based on this detection, rotation of the rewinding rolls 1 and 1 not shown. A drive command for forward or reverse rotation capable of rewinding is sent to the drive unit. That is, the rewinding rolls 1 and 1 rotated in a certain rotation direction to rewind the remaining paper regardless of whether the supplied remaining paper of the core A with a residual paper is right-handed or left-handed, the feeding paper end portion detection is performed. By the function of the sensor 6, the presence or absence of the feeding end of the remaining paper rewound by the rewinding rolls 1 and 1 and fed from the feeding rolls 5 and 5 is detected, and based on this detection, the remaining paper is fed out. When the presence of the paper edge is detected, the rewinding direction is the same as the current rotation direction, and conversely, when the presence of the paper edge of the remaining paper cannot be detected, the rewinding is performed in the opposite rotation direction to the current rotation direction. A rewinding forward or reverse rotation drive command is sent to the rotation driving unit of the rolls 1, 1 to control the rewinding rolls 1, 1 in a revolving direction capable of rewinding. For example, when the core A with residual paper supplied to the rotation direction of the rewinding rolls 1 and 1 rotated to rewind is wound in a rewinding direction, it is rewound by the rewinding rolls 1 and 1. Since the feeding paper edge detection sensor 6 can detect the presence of the feeding paper edge portion of the first remaining paper, the rewinding rolls 1 and 1 are rotated at high speed in the same rotation direction to rewind the remaining paper. On the other hand, in the case where the core A with residual paper supplied in the rotation direction of the rewinding rolls 1 and 1 rotated to rewind is wound in a direction in which it cannot be rewound,
Even when the rewinding rolls 1 and 1 start to be rotated, they are not rewound and the presence of the feeding paper end portion of the remaining paper is detected.
Therefore, the rewinding rolls 1 and 1 are driven to rotate in a direction opposite to the current rotation direction by sending a drive command to the rewinding rolls 1 and 1 in a rotation direction opposite to the current rotation direction. Thus, the rewinding rotation direction of the rewinding rolls 1 and 1 can be controlled according to the remaining paper winding direction of the supplied core A with residual paper, and the residual core A with residual paper supplied to the rewinding rolls 1 and 1 can be controlled. It is possible to rewind the paper whether it is right-handed or left-handed.

A large number of advancing / retracting movements projecting from the roll peripheral surface so that the rewind paper end portion of the core A with residual paper can be grasped by the roll peripheral surface over the entire roll peripheral surface of the rewinding rolls 1, 1. A needle device having a transparent needle member 7 is provided. This needle device will be described with reference to FIGS. 2 to 4. This needle device has a tubular shape attached to the rewinding rolls 1 and 1 so as to be expandable / contractible in the roll circumferential surface direction of the rewinding rolls by the pressure of air introduced through the air vents 9 from inside the roll pipes 8. A needle member 7 protruding from an elastic tube member 10 and a needle support 12 supported by a tightening elastic ring 11 or the like on the outside of the elastic tube member 10.
And the needle member 7 is connected to the elastic tube member 10
By the expansion and contraction action, the rewinding rolls 1 and 1 can be moved forward and backward so as to project from the roll peripheral surface. Eight needle members 7 are arranged in the circumferential direction of the rewinding roll 1 and a large number of them are arranged so as to extend over the entire width of the rewinding roll 1. When the needle member 7 is moved back and forth, the pressure of the air contained in the roll tube 8 of the rewinding rolls 1, 1 can be expanded or contracted in the circumferential direction of the rolls of the rewinding rolls 1, 1 through the air vent holes 9. The elastic tube member 10 attached to the needle support member 12 acts so as to expand in the circumferential direction of the roll against the tightening force of the tightening elastic ring 11 wound around the needle support 12, and this expansion action causes the elastic tube member 10 to expand. The needle member 7 projecting from the supported needle support 12 is advanced to a position projecting from the roll peripheral surface of the rewinding rolls 1, 1. The needle member 7 at the advanced position winds the elastic tube member 10 expanded in the circumferential direction of the roll around the needle support 12 by releasing the air pressure contained in the roll tube 8 of the rewinding rolls 1, 1. The tightened elastic ring 11
It is contracted to the original position instantaneously by the tightening force of and is moved backward to a position where it does not project from the peripheral surface of the roll.

The rewinding rolls 1, 1 supporting to rewind the supplied core A with residual paper are rolled over the entire peripheral surface of the rewinding rolls 1, 1 so as to project from the peripheral surface of the rewound paper and the entire rewinding paper end portion of the residual paper. By providing the needle device having a large number of needle members 7 which can be moved forward and backward so as to be gripped by the peripheral surface, the large number of needle members 7 protruding from the entire area of the peripheral surface of the roll rewind the end of the rewound paper. When the rewind rolls 1 and 1 are lightly stabbed in the entire region of the rewind rolls 1, the rewind rolls 1 and 1 work to reliably grasp the entire rewind paper end portion of the residual paper. The end of the rewinding paper, which is lightly stabbed by a large number of needle members 7 located at the advanced position projecting from the roll peripheral surface of the rewinding rolls 1 and 1 and reliably gripped on the entire area of the roll peripheral surface,
When the rewinding paper starts to be rewound from the entire area of the rewinding paper end portion, the rewinding roll 1 is rewound by the feeding rolls 5 and 5 having the roll peripheral surface of the rewinding roll and the roll peripheral surface interlocked with each other.
The needle member 7 is moved away from the peripheral surface of the rewinding roll 1 to a position where it does not project from the peripheral surface of the rewinding roll 1. To be done. As described above, by the action of the many needle members 7 that can move forward and backward on the roll peripheral surface of the rewinding rolls 1 and 1 and project from the roll peripheral surface,
Even when the remaining paper of the core A with the residual paper having the irregular rewinding paper end portion is rewound and removed as shown in (4), the entire area of the irregular rewinding paper end portion is rewound by the rewinding roll portion. It is possible to reliably grasp and thus to reliably rewind the remaining paper from the full width of the rewind paper edge.

As shown in FIG. 5, one of the feeding rolls 5 and 5 has a slitter blade on one of the feeding rolls 5 so as to form a cutting cut along the feeding direction of the residual paper fed from the feeding rolls. A slitter blade receiving portion 16 is provided on the other feeding roll 5. By providing the slitter blade 15 and the slitter blade receiving portion 16 on the feeding rolls 5 and 5 in this manner, the unwound and unwound remaining paper can be cut into an appropriate width, and the looseness of the remaining paper with a wide paper width is eliminated. it can.

The roll shafts of the rewinding rolls 1 and 1 and the payout rolls 5 and 5 have a support frame 2 shown by a broken line in FIG.
It is rotatably supported at 0. The support frame 20 is configured such that the unwinding roll 1 disposed on the left side can be used as an axis to move the other unwinding roll 1 and the unwinding rolls 5 and 5 from a solid line position to a chain line position by a cylinder (not shown). There is. By this movement, the rewinding of the residual paper is completed, and the core B from which the residual paper has been removed is released from the support from the rewinding rolls 1 and 1, and is dropped downward. It is sent to the table 21.

[0020]

Since the core residual paper removing device of the present invention is constructed as described above, it has the following effects. When supplying the core with residual paper to the rewinding section, it is not necessary to supply the residual paper in the same winding direction, that is, to rewind the supplied residual paper core with either left or right winding. Is possible.

Further, as shown in FIG. 7, even when the residual paper of the core with residual paper having the irregular rewinding paper end portion is rewound and removed, the entire area of the irregular rewinding paper end portion is removed. Since the paper can be reliably grasped by the rewinding roll portion, the rewinding paper can be reliably rewound from the entire width of the end portion.

Further, by providing a slitter blade and a slitter blade receiving portion on the feeding roll, the unwound and unwound residual paper can be cut into an appropriate width along the payout direction, and the residual paper with a wide paper width can be removed. It can be resolved.

[Brief description of drawings]

FIG. 1 is an overall schematic front view.

FIG. 2 is a schematic side view of a rewinding roll and a feeding roll.

FIG. 3 is an enlarged vertical sectional front view of a rewinding roll.

FIG. 4 is an enlarged vertical side view of the rewinding roll.

FIG. 5 is a schematic front view in which a slitter blade is attached to a delivery roll.

FIG. 6 is an overall schematic front view showing a conventional core residual paper removing device.

FIG. 7 is a side view showing a core with remaining paper having irregular rewinding paper edges.

[Explanation of symbols]

 A Core with residual paper B Core with residual paper removed 1 Rewinding roll 2 Feeding platform 3 Single feeding device 4 Press roll 5 Feeding roll 6 Feeding paper edge detection sensor 7 Needle member 8 Roll tube 9 Air vent hole 10 Elastic Tube member 11 Tightening elastic ring 12 Needle support 15 Slitter blade 16 Slitter blade receiving part 20 Support frame 21 Core pedestal

Claims (5)

[Claims] 1. A pair of rewinding rolls that rotatably and rotatably support the cores with residual paper supplied one by one so as to rewind the residual paper with the cores with residual paper, and rewinding by the rewinding rolls. A pair of delivery rolls for delivering the remaining paper to the discharge side and the presence or absence of the delivery paper end portion of the remaining paper delivered by the delivery roll are detected, and based on this detection, the rotation drive unit of the rewinding roll is detected. A core residual paper removing device, which is provided with a feeding paper end portion detection sensor which sends a drive command of forward rotation or reverse rotation capable of rewinding. 2. A pair of rewinding rolls that rotatably support the cores with residual paper fed one by one so as to rewind the residual paper with the cores with residual paper, and the residual paper rewound by the rewinding rolls. Is provided with a pair of feeding rolls for feeding to the discharge side, so that the entire area of the roll peripheral surface of the rewinding roll is projected from this roll peripheral surface and the entire area of the rewinding paper end portion of the residual paper can be grasped by the roll peripheral surface. A core residual paper removing device comprising: a needle device having a large number of needle members capable of moving back and forth as described above. 3. The needle device comprises an elastic tube member attached so as to be expandable / contractible in the roll peripheral surface direction of the rewinding roll by the pressure of air introduced from the inside of the roll tube of the rewinding roll through an air vent hole. , A needle member protruding from a needle support body supported by the elastic tube member,
3. The core residual paper removing device according to claim 2, wherein the needle member is configured to be movable back and forth so as to project from the roll peripheral surface of the rewinding roll by expansion and contraction of the elastic tube member. 4. The core residual paper removing device according to claim 1, wherein a press roll for rotatably pressing the core with residual paper rotatably supported by the rewinding roll is provided. . 5. A slitter blade is provided on one of the feeding rolls and a slitter blade receiving portion is provided on the other feeding roll so that a cutting cut along the feeding direction of the residual paper fed from the feeding roll can be formed on the feeding roll. The core residual paper removing device according to claim 1, wherein the core residual paper removing device is provided.