JPH08119433A - Reverser for rolled body - Google Patents

Abstract

PURPOSE: To provide a reverse for a rolled body which can cut the rolled body crosswise without hindrance and besides can operate accurately without trouble even if operated continuously for a long period with simple structure. CONSTITUTION: A receiver 21 for supporting an adhesive tape rolled body 1 roughly horizontally is connected to the rotary shaft 31 of a motor 3, and the motor 3 is attached capably of up and down motion to the piston 41 of an air cylinder 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive tape or a roll for manufacturing an adhesive tape or the like, which is provided with the central portion of the width of the roll as an axis in order to feed the roll with the winding direction reversed. The invention relates to a reversing device for a winding body that changes direction on a horizontal plane.

[0002]

2. Description of the Related Art Adhesive tapes are a process of applying a pressure-sensitive adhesive to a base sheet and drying it to produce a wide and long raw material, and winding the raw material into a certain short length to make a wide small rolled product. And a cutting step of cutting a wide small-sized rolled product into a fixed small width in the width direction. In the cutting step, the rolled body, which is a small rolled product, is rotated in the axial direction and pressed against the blade from one side to cut into loops.

As shown in FIG. 5, in order to cut the tape winding body 1 wound around the paper tube 12 by the rotary blade 8 which rotates in the opposite direction while rotating the shaft, the adhesive tape winding body 1 is wound up. It is necessary to rotate in the same direction as the rotation direction of.
The reason for this is that if the wound body is sliced while rotating the adhesive tape in a direction opposite to the direction in which the adhesive tape is wound, the adhesive tape will be turned over from the end portion 11 at the end of winding and will hinder the cutting.

The small winding step and the cutting step are continuous lines, and the rotation direction of the winding body in the cutting step is limited to the direction opposite to the winding direction of the winding body due to the mechanism of the entire apparatus. There are many.

Conventionally, a vertical hydraulic cylinder has been used in order to reverse the winding direction of the wound body sent from the small winding process. This is because the hydraulic cylinder is installed vertically with the piston facing upward between the small winding process and the cutting process, a rotary base that rotates in the horizontal direction is provided on the upper end of the piston, and the winding body is placed on the rotary base and lifted once. In a horizontal state with the piston rotating horizontally within a range of 360 degrees,
The winding direction is reversed and the winding body is lowered again to be supplied to the cutting device.

[0006]

When the above-mentioned hydraulic cylinder is used, the mechanism is complicated because the piston rotates in addition to the vertical movement, and dust and foreign matter are mixed in the oil when oil is supplied or adjusted, and the seal part May cause oil leakage. In addition, the continuous operation reliability such as metal debris generated from the rotary bearing for the piston shaft rotation, stopping in the middle of vertical movement of the piston, and angular deviation in the rotation operation on the horizontal plane. It lacked sex and required a lot of labor for maintenance.

The present invention solves the above-mentioned problems of the prior art, makes it possible to cut the wound body into rings without any problem, and allows a simple device to operate accurately without failure even during continuous operation for a long period of time. An object of the present invention is to provide a reversing device for a wound body.

[0008]

SUMMARY OF THE INVENTION In a roll inverting device according to the present invention, a pedestal for supporting the roll substantially horizontally is connected to a rotating shaft of a motor, and the motor is attached to a piston of an air cylinder to move up and down. It is characterized by being made movable.

The roll used in the present invention is not only an adhesive tape raw fabric, but also a roll wound with a roll such as a synthetic resin film, a non-woven fabric, paper or the like which has not been adhesively processed.

The cradle supports the central portion of the roll in the width direction almost horizontally, and it is suitable that the pedestal has a shape in which the roll does not drop or shift in position, for example, one having a recess opening upward. Further, it is preferable that the upper end edge of the pedestal, that is, the edge of the opening concave portion is located at a position lower than the center of the cross section of the winding body, because it is easy to automatically place and lower by the pushing-down mechanism. The pedestal is connected to the rotary shaft of the motor and is provided at the upper end of the rotary shaft that rotates, and is rotated in a substantially horizontal direction as the rotary shaft rotates.

As shown in FIG. 2, the pedestal 21 may be provided on the upper portion of the frame body 2, or as shown in FIG. 3, two pedestals 21, 21 are provided on both sides of the support body 23. But it's okay. Further, as shown in FIG. 4, it may be provided on both sides of the plate body 24 so as to face back.

The motor is attached to the upper end of the piston of the air cylinder, and is vertically moved by the movement of the piston. Moving the pedestal up and down prevents the wrapping body from touching a conveyor or the like arranged close to the pedestal when the pedestal rotates horizontally to change the direction of the winding body. Therefore, this is to raise it a little higher, and after lowering the direction of the winding body, place it on a conveyor or the like and lower it for sending to the next step. Therefore, it is necessary to raise to a position where there is no obstacle in the rotation within the widthwise radius of the winding body supported by the cradle.

After raising the hoist, it is rotated in a substantially horizontal plane in the range of 360 degrees. For example, 18 in a straight line from the small winding process to the cutting process.
9 at the line that turns 0 degrees and turns at a right angle
It may be rotated by 0 degree, and the rotation angle may be selected depending on the angle of the bend in the middle of the line.

As described above, in the present invention, the pedestal is horizontally rotated by the motor, and the vertical movement is performed by the piston of the air cylinder.

[0015]

The pedestal supports the winding body in a substantially horizontal direction, lifts it, and rotates in the horizontal direction within a range of 360 degrees to reverse the winding direction of the winding body.
After that, the wound body can be lowered, transferred to a conveyor or the like, and cut into circles without any problem in the cutting process.

The motor only rotates the pedestal in a substantially horizontal direction, and the piston of the air cylinder only moves the pedestal up and down. Therefore, the piston does not have to move up and down but also need to rotate, and metal debris and the like generated from the rotary bearing do not occur. Normal air cylinders and pistons can be used.

Since an air cylinder is used in the present invention,
No oil supply is required, and dust and foreign matter will not be mixed into the oil during adjustment, and oil will not leak from the seal.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of a reversing device for a wound body according to the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an embodiment of a reversing device for a wound body according to the present invention. 2 is the pedestal 2 at the top
1 is a frame body provided with a motor 3 at the bottom of the frame body 2.
Is connected to the upper end of the rotary shaft 31. Reference numeral 4 is an air cylinder, and 41 is a piston that can be moved up and down by the air cylinder 4. An upper portion of the motor 3 is attached to an upper end portion of the piston 41 via a mounting plate 5, and the motor 3 is vertically movable by the piston 41. The air cylinder 4 is fixed to the pedestal 6 by a fixing plate 51. Reference numerals 53, 53 are fixed bases for stabilizing the vertical movement of the piston 41.
It is connected by two.

FIG. 2 shows a frame body 2 provided with the pedestal 21.
FIG. 4 is a perspective view of the pair of support bodies 22 and 22 in which the receiving bases 21 and 21 are provided substantially horizontally at the end portions thereof. FIG.
In the figure, 7 is the pedestal 21, 21
The upper surface of the guide 7 has a gentle downward slope and is horizontally movable leftward.

The tip of the guide 7 is 2 of the frame 2 shown in FIG.
It can be lowered to place the adhesive tape winding body 1 on the pedestals 21, 21.

Next, a state in which the direction of the winding body is reversed by using the above-described winding body reversing device will be described. Made as a small roll
Adhesive tape roll 1 wound in the winding direction shown in FIG.
Is the inclined surface of the guide 7 shown in FIG.
When it is supplied to the upper part, it is stopped by the stopper 71 of the guide 7. Then, the tip of the guide 7 is two pedestals 2
It slightly descends into the frame 2 between 1 and 21, and the adhesive tape winding body 1 is placed on the pedestal 21, and is horizontally moved to a position where it is separated from the side end of the frame 2.

Next, when the air cylinder 4 is actuated and the piston 41 rises, the motor 3 and the frame body 2 attached thereto rise to lift the adhesive tape winding body 1 to the H position. In this state, when the rotating shaft 31 of the motor 3 rotates to rotate the winding body 1 by 180 degrees, the winding direction is as shown in FIG.
It is inverted as shown in. After that, the frame body 2 is again lowered to the original position by the piston 41, transferred to the right in FIG. 1 and rotated in the direction shown in FIG. 5 to be cut into a predetermined width by the cutting device.

By changing the direction in this way, the adhesive tape winding body 1 can be sliced into a ring without the winding end end 11 turning up.

[0024]

The reversing device for a roll according to the present invention has the above-described structure, and the cradle supports the roll substantially horizontally and lifts it.
The winding direction of the winding body can be reversed by rotating the winding body in the horizontal direction within a range of 360 degrees.
As a result, the winding body can be rotated in the winding direction while the end portion of the winding end does not turn up, and the cutting device can cut into a circular slice.

The mechanism is simple because the motor only rotates the pedestal almost horizontally, and the piston of the air cylinder only moves the pedestal up and down. . Therefore, the piston does not have to move up and down but also need to rotate, and metal debris and the like are not generated from the rotary bearing, so that the piston can operate accurately for a long period of time.

[0026]

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of a reversing device for a wound body according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a cradle.

FIG. 3 is a perspective view showing another embodiment of the cradle.

FIG. 4 is a side view showing still another embodiment of the cradle.

FIG. 5 is a side view showing a state in which the wound body is cut.

FIG. 6 is a side view of the wound body.

FIG. 7 is a side view of the winding body.

[Explanation of symbols]

 1: Adhesive tape roll body 2: Frame body 3: Motor 4: Cylinder 5: Mounting plate 6: Base 7: Guide 8: Rotating blade 21: Receiving stand 22, 23: Support 24: Plate 31: Rotating shaft 41 : Piston 51: Fixed plate 52: Connection plate 53: Fixed base

Claims (1)

[Claims] 1. A winding body characterized in that a cradle for supporting the winding body in a substantially horizontal direction is connected to a rotating shaft of a motor, and the motor is attached to a piston of an air cylinder and can move up and down. Reversing device.