JPH08169602A - End processing device for web roll - Google Patents

Abstract

PURPOSE: To provide an end processing device which can mechanically-bond a piece of adhesive tape for fixing the end of a web roll. CONSTITUTION: A lifting plate 18 is mounted above a web roll A which is set on a pair of rotating rolls. The first roller arm 34 and the second roller arm 39 are oscillatingly-mounted onto the lifting plate 18, and a suction head 37 which attractively-hold the end of an adhesive tape T and a guide roll 36 are mounted onto the first roller arm 34. By oscillating the first roller arm 34, the suction head 37 is pressed against the end part of the web roll A to bond the end of the adhesive tape T to an end part. After bonding it by a prescribed length, the adhesive tape T is cut by a cutter 44. The web roll A is rotated to press a piece of adhesive tape T by a tape pressing member, thus providing complete bonding.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a web roll end treatment device for fixing a web roll end by sticking an adhesive tape piece.

[0002]

2. Description of the Related Art A strip of paper, film or the like drawn from a roll is cut into a desired width by a pair of trimming blades and a plurality of slitter blades to form a plurality of webs, and each web is paired with a pair of rotating rolls. In a winder that is placed between and is wound by a core that rotates by contact with a rotating roll, when the winding diameter of the web wound by the core reaches the set winding diameter, the web is wound. The web roll is discharged downstream in the web transfer direction.

In the web roll formed by the winder, if the end of the web is still wound, the web is unwound when the web roll is transferred. Therefore, the end is usually fixed by sticking a piece of adhesive tape. Is being done.

[0004]

By the way, when attaching the adhesive tape piece to the end of the web roll, it has been conventionally troublesome to attach the adhesive tape piece manually, so that it takes much time and wrinkles on the end of the web. Often there was slack.

An object of the present invention is to provide a web roll end treatment device capable of mechanically attaching an adhesive tape piece without causing wrinkles or slack in the end portion of the web roll. .

[0006]

In order to solve the above problems, in the present invention, a pair of rotating rolls for supporting a web roll and rotating the web roll in contact with each other,
A tape sticking unit for sticking an adhesive tape piece to a terminal portion that has been rotated and moved to the upper part of the outer periphery of the web roll, a moving device that reciprocates the tape sticking unit in a direction orthogonal to the axial direction of the web roll, and A tape holding member provided at the rear of the tape sticking unit so as to come into contact with and separate from the outer circumference of the web roll. The tape sticking unit has a reel support plate for supporting the tape reel, and a lower part of the reel support plate. A lifting head that is moved up and down at, and a swing head that supports a suction head that adsorbs and holds the tip of the adhesive tape drawn from the tape reel on the lifting plate and a guide roll that guides the movement of the adhesive tape. Provided behind the arm and suction head, the outer circumference of the web roll when the tape application unit descends. A tape pressing roll for resiliently contacting is of employing the configuration provided a cutter device for cutting the adhesive tape between the tape pressing roll and the suction head.

[0007]

In the terminal processing device having the above structure,
By swinging the arm downward, a suction head for adsorbing and holding the tip of the adhesive tape is pressed against the outer circumference of the web roll. When the tip of the adhesive tape adheres to the end of the wave roll, the suction head is released,
The swing head moves the suction head away from the web roll. Further, the tip end portion of the adhesive tape is pulled up by the guide roll swinging together with the suction head, and the end portion is separated from the outer circumference of the web roll.
In this state, the tape applying unit is moved in a direction orthogonal to the axis of the web roll to feed out the adhesive tape, and the adhesive tape is adhered to the outer circumference of the web roll in order from the front end by pressing the tape pressing roller.

[0008] When the adhesive tape is past the end of the adhesive tape and a part of the adhesive tape is adhered to the outer circumference of the web roll, and the tape application unit completes the movement of the web roll in the orthogonal direction, suction force is applied to the suction head. When it is applied and the suction head adsorbs the adhesive tape, the cutter device is operated to cut the adhesive tape.

After cutting the adhesive tape, the pair of rotating rolls are driven to rotate the web roll in the web winding direction,
Adhesive tape pieces are pressed by the tape pressing roll and the tape pressing member to completely bond them.

[0010]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1, a pair of rotating rolls 1
The web roll A is set between the pair of rotary rolls 1a and 1b. One of the pair of rotating rolls 1a and 1b is rotated by a drive device (not shown), and the web roll A is contact-rotated by the rotation.

A beam 2 extending in the axial direction of the web roll A is provided above the web roll A supported by the pair of rotating rolls 1a and 1b.

The beam 2 is movably supported along a vertically extending rail 4 provided on the side surface of the guide column 3.

As shown in FIG. 2, a screw shaft 5 extending in the up-down direction is provided inside the guide column 3, and a nut member 6 threadably engaged with the screw shaft 5 is attached to the beam 2. Therefore, the beam 2 moves up and down by driving the motor 7 connected to the upper end of the screw shaft 5 to rotate the screw shaft 5.

A plurality of rails 8 extending in the length direction of the beam 2 are attached to the beam 2, and an L-shaped moving table 9 is movably supported along the rails 8.

A motor 10 is supported on the moving base 9, and a pinion 11 attached to the rotary shaft of the motor 10 is used for the beam 2.
Is engaged with the rack 12 attached to the rack. For this reason,
When the motor 10 is driven, the moving base 9 moves along the rails 8 and the position of the moving base 9 can be adjusted with respect to the web roll A.

A pair of rails 13 parallel to the beam 2 are attached to both sides of the lower surface of the movable table 9, and a unit support plate 14 is movably supported along the rails 13.

Here, a plurality of unit support plates 14 are provided, and the position of each unit support plate 14 is adjusted in the width direction of the web roll A by the moving device X supported on the lower surface of the moving table 9.

In the embodiment, only one unit support plate 14 is shown and the other remaining unit support plates 14 are omitted.

Below the unit support plate 14, a tape adhering unit 15 is provided. Tape sticking unit 1
5 is moved in a direction orthogonal to the axis of the web roll A by the operation of a rodless cylinder 16 as a moving device supported by the lower surface of the unit support plate 14.

The tape adhering unit 15 has a reel supporting plate 17 and an elevating plate 18 provided below the reel supporting plate 17.
The reel support plate 17 is moved by the rodless cylinder 16.

Here, if the weight of the tape sticking unit 15 is a supporting structure that directly acts on the rodless cylinder 16, it is necessary to use a large rodless cylinder 16, which is disadvantageous in terms of cost.

In order to eliminate such inconvenience, the unit support plate 14 is provided with a rail 19 extending long in the direction orthogonal to the axis of the web roll A, and the reel support plate 17 is movable along the rail 19. I support you.

A reel shaft 20 is projectingly provided on the reel supporting plate 17, and a reel 21 wound with an adhesive tape T is detachably attached to the reel shaft 20.

A guide roll 22 that contacts the non-adhesive surface of the adhesive tape T drawn from the reel 21 and a brake roll 23 that contacts the adhesive surface are provided below the reel support plate 17. The brake roll 23 is rotatable only in the feeding direction of the adhesive tape T, and braking force is applied by the friction mechanism 24 shown in FIG.

The friction mechanism 24 is provided with a cylinder 26 at the end of a roll shaft 25 that supports the brake roll 23, and the piston 27 and the disc spring 2 are provided inside the cylinder 26.
8, the piston 27 is moved by the pressure of the fluid supplied into the cylinder 26 from the passage 29 formed in the roll shaft 25, and the disc spring 28 is brought into pressure contact with the end surface of the brake roll 23.

As shown in FIG. 3, the elevating plate 18 is suspended and supported by the reel supporting plate 17 via the parallel link 30, and is vertically moved by the operation of the elevating cylinder 31 supported by the elevating plate 18.

A guide roll 32 for guiding the movement of the adhesive tape T drawn out from the brake roll 23 is provided on the lift plate 18, and a first roller arm is provided on a roll shaft 33 that rotatably supports the guide roll 32. The middle of 34 is rotatably supported.

The first roller arm 34 is swung about the roll shaft 33 by the operation of the swing cylinder 35 connected to the upper end portion.

At the lower end of the first roller arm 34, a guide roll 36 for guiding the movement of the adhesive tape T and a suction head 37 for adsorbing and holding the tip of the adhesive tape T are attached. The guide roll 36 is rotatable only in the feeding direction of the adhesive tape T.

As shown in FIG. 5, the suction head 37 has a flat lower surface 37a and a large number of suction holes 38 extending from the lower surface 37a to an arcuate upper side surface 37b. The suction heads 37 are adhered by a suction force acting on each suction hole 38. The tip portion of the tape T is sucked and held.

A second roller arm 39 is provided on the back of the first roller arm 34. Second roller arm 39
Has an upper end rotatably supported by a pin 40 and a lower end part rotatably supporting a tape pressing roll 41.

The second roller arm 39 is pulled toward the first roller arm 34 by the spring 42, and the lifting plate 18 is moved.
It is prevented from swinging by abutting against the stopper pin 43 protrudingly provided at. In the steady state, the lower part of the outer periphery of the tape pressing roll 41 faces below the lower edge of the elevating plate 18.

The adhesive tape T, which is exposed between the suction head 37 and the tape pressing roll 41, is cut by the cutter device 44 supported by the elevating plate 18.

The cutter device 44 moves the cutter 46 back and forth by the operation of the cylinder 45 supported by the lift plate 18.

As shown in FIG. 2, the tape pressing roll 41
A tape pressing member 47 is provided on the back of the. The tape pressing member 47 extends long in the axial direction of the web roll A,
An elastic member 48 such as felt is attached to the lower surface thereof.

The tape pressing member 47 is moved up and down by a cylinder 49, and an arm 50 that supports the cylinder 49.
Is fixed to the beam 2.

The terminal processing device shown in the embodiment has the above structure, and its operation will be described below with reference to FIGS. 6 to 11.

As shown in FIG. 6, a pair of rotating rolls 1
When the web roll A is set on a and 1b, the screw shaft 5 is rotated by driving the motor 7. As shown in FIG. 7, the beam P is lowered and the sensor P attached to the lift plate 18 is moved.
When H ₁ detects the web roll A, the motor 7 stops.

At this time, the tape pressing member 47 contacts the outer circumference of the web roll A, and the contact force is adjusted by the cylinder 49. A spring may be used instead of the cylinder 49, and the tape pressing member may be elastically brought into contact with the outer circumference of the web roll by the spring.

As shown in FIG. 7, when the tape pressing member 47 comes into contact with the outer circumference of the web roll A, one of the pair of rotary rolls 1a and 1b is rotated at a low speed to move the web roll A in the web winding direction. Contact rotation.

When the sensor PH ₂ provided on the upper portion of the outer circumference of the web roll A detects the end a of the web roll A, the rotating roll is stopped. By the stop, the terminal a is stopped and held in a state of facing the lower side of the guide roll 32 of the tape sticking unit 15.

When the web roll A is stopped, the motor 10
The plurality of tape adhering units 15 are position-adjusted with respect to the web roll A by the driving and moving device X so that the web roll A has a designated number and a designated pitch.

When the position of the tape adhering unit 15 is adjusted, the elevating plate 18 descends due to the operation of the elevating cylinder 31, the tape pressing roll 41 comes into contact with the upper surface of the outer circumference of the web roll A, and the second roller arm 39 springs. When the upper plate 18 swings slightly upward against the elasticity of 42, the lift plate 18 stops.

FIG. 8 shows a state in which the tape pressing roll 41 is elastically in contact with the outer circumference of the web roll A. At this time, the suction head 37 that adsorbs and holds the tip of the adhesive tape T is pulled up and held in a state of not contacting the web roll A.

When the tape pressing roll 41 comes into contact with the outer circumference of the web roll A, the rocking cylinder 35 operates to move the first roll.
The roller arm 34 is swung.

By swinging the first roller arm 34, the suction head 37 is pressed against the outer circumference of the web roll A.

As shown in FIG. 9, when the tip of the adhesive tape T is pressed against the end portion of the web roll A, the suction 31 to the suction hole 38 of the suction head 37 is released, and at the same time, the swing cylinder 35 is operated. The first roller arm 34 is swung in the opposite direction.

The swing of the first roller arm 34 causes the guide roll 36 supported by the first roller arm 34 to pull up the tip of the adhesive tape T. Therefore, as shown in FIG. 10, the end portion a of the web roll A is pulled up and released from the outer peripheral surface of the web roll A.

After stopping the lifting of the suction head 37, FIG.
The rodless cylinder 16 shown in FIG. 6 operates to move the tape application unit 15 forward. The adhesive tape T is fed from the reel 19 by the forward movement of the tape applying unit 15, and the tape pressing roll 41 sequentially presses the adhesive tape T.

As shown in FIG. 11, when the adhesive tape T is adhered for a required length from the outer circumference of the end portion to the outer circumference of the web roll A, a suction force is applied to the suction head 37 and the brake roll 23. Is braked. At the same time, the cutter 46 advances to cut the adhesive tape T. At this time, since suction force is applied to the suction head 37,
The tip end of the adhesive tape T is adsorbed and held by the suction head 37.

As described above, when the adhesive tape T is cut, by braking the brake roll 23, the adhesive tape T
Since the slack can be prevented, the adhesive tape T can be reliably cut.

When there are a plurality of tape adhering units 15, the plurality of tape adhering units all operate simultaneously.

When a plurality of web rolls A are set on the pair of rotating rolls 1a and 1b, the motor 7 shown in FIG. Web roll A of
A required number of adhesive tapes T are attached to the web roll A.

When the adhesive tape pieces are attached to all the web rolls A, the pair of rotating rolls 1a and 1b rotate to rotate the web roll A in the web winding direction.

At this time, since the tape pressing member 47 is in contact with the web roll A, the end portion is squeezed, and the adhesive tape piece is completely adhered by pressing the tape pressing member 47.

In the adhesion of the adhesive tape pieces as described above, when the tip of the adhesive tape T is pressed against the outer circumference of the web roll A and the adhesive tape T is attached without pulling up the tip of the adhesive tape T, the web roll A The terminal part that is in close contact with the outer circumference of the device due to static electricity is
Only the attachment position of is strongly pulled, and wrinkles are likely to occur on the terminal portion.

In the embodiment, after the tip portion of the adhesive tape T is adhered to the end portion, the adhesive tape T is pulled up by the guide roll 36 swinging together with the first roller arm 34, and the end portion is separated from the outer circumference of the web roll A. Since the tape is affixed in a floating state, it does not cause wrinkles on the terminal.

Further, since the web roll A is rotated after the adhesive tape T is cut, the end portion can be squeezed by the tape pressing member 47 pressed against the web roll A, causing slack in the end portion. Nothing.

FIG. 12 shows another embodiment of the present invention.
In this embodiment, the moving base 9, the motor 10, the pinion 11, and the rack 12 of the embodiment shown in FIG. 2 are omitted, the rail 13a is attached to the beam 2, and the tape sticking unit 15 is supported along the rail 13a. Unit support plate 1
4 is movably attached, and a plurality of unit support plates 14 are moved to a designated position where tapes need to be attached by a moving device X supported on the lower surface of the beam 2.

[0061]

Since the terminal processing device according to the present invention is configured as described above, the adhesive tape piece can be mechanically attached to the end portion of the web roll, which is effective for labor saving. You can

Further, after the suction head is adhered to the end of the web roll by the swinging of the roller arm, the suction of the suction head is released and the roller arm is shaken in the opposite direction. The adhesive tape is moved up and pulled up by the guide roller, and the adhesive tape is applied while being drawn out by moving the tape applying unit in a state where the end portion is separated from the outer circumference of the web roll, so that the end portion is wrinkled. It can be attached without adhesive tape.

Further, since the web roll is rotated in the winding direction of the web after the sticking of the adhesive tape piece, it is possible to squeeze the end portion with the tape pressing member pressed against the web roll, and to slacken the end portion. Will not occur.

[Brief description of drawings]

FIG. 1 is a schematic diagram of a terminal processing device according to the present invention.

FIG. 2 is a partially cutaway front view of the upper portion of the above.

FIG. 3 is a detailed view of the same tape sticking unit.

FIG. 4 is a sectional view of the same brake roll.

FIG. 5 is a sectional view of the suction head of the above.

FIG. 6 is a schematic view showing a state before the start of sticking the adhesive tape.

FIG. 7 is a schematic diagram showing a state in which the tape applying unit is stopped moving downward.

FIG. 8 is a diagram showing a state before attaching the tip of the adhesive tape.

FIG. 9 is a diagram showing a pasted state of the tip of the adhesive tape.

FIG. 10 is a diagram showing a state where the tip of the adhesive tape is pulled up.

FIG. 11 is a diagram showing a pasted state of an adhesive tape.

FIG. 12 is a schematic view showing another example of the terminal processing device according to the present invention.

[Explanation of symbols]

 A Web roll 1a, 1b Rotating roll 15 Tape sticking unit 16 Rodless cylinder 17 Reel support plate 18 Elevating plate 21 Tape reel 23 Brake roll 24 Friction mechanism 34 Arm 36 Guide roller 37 Suction head 41 Tape press roll 44 Cutter device 47 Tape press Element

Claims (2)

[Claims] 1. A pair of rotating rolls for supporting a web roll and rotating the web roll in contact with each other; A moving device that reciprocates the tape applying unit in a direction orthogonal to the axial direction of the web roll, and a tape pressing member provided behind the tape applying unit so as to come into contact with and separate from the outer periphery of the web roll. The tape sticking unit has a reel support plate that supports the tape reel, and an elevating plate that is moved up and down below the reel supporting plate. A swingable arm that supports a suction head that holds the tip by suction and a guide roll that guides the movement of the adhesive tape. And a tape pressing roll that is provided behind the suction head and elastically contacts the outer circumference of the web roll when the tape applying unit descends, and a cutter device that cuts the adhesive tape between the tape pressing roll and the suction head. And a web roll terminal processing device. 2. The web roll according to claim 1, wherein a brake roll that comes into contact with the adhesive surface of the adhesive tape is provided in a moving path of the adhesive tape from the tape reel to the guide roller, and a friction mechanism is provided on the brake roll. Terminal processing device.