JPS6023120A - Method of laminating tape on cylindrical wound layer body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for fixing a protective pad to a rolled layer made by winding a film or sheet of paper, metal, synthetic resin, etc. into a cylindrical shape. The present invention relates to a method of laminating a band-shaped tape so as to cover a part of the corner of the wound layered body from the circumferential end to the outer edge of the end face.

In order to prevent damage during transportation and storage, various types of rolled bodies are usually wrapped with pads. In addition, if a one-volume layered product is placed with its axis horizontal, it will not only be unstable, but the bottom surface will deform due to its own weight, resulting in defective products, so it is generally handled with its axis vertical. Therefore, pads are often installed on the end surface that becomes the ground plane or stacking surface.

FIG. 1 is a cross-sectional view showing an example of a rolled layered product in which the end pad (71) and the peripheral pad are also removed and packaged.

In the figure, reference numeral 1 denotes a layered body in which a film or sheet-like material 3 is wound around a core material 2', and a circumferential pad 4 is IH-wound around the circumferential surface of the layered body. Furthermore, end pads 5 are fixed to both end surfaces of the carcass l. This end pad 5 is shaped like a donut plate and has a diameter slightly larger than the end surface of the rolled layered body l, and the cap 6 is inserted into the core material 2 through a hole in the center.
It is attached with its center aligned with the end of the rolled layered body l, and its peripheral edge is fixed by a band-shaped tape 7 pasted from the peripheral edge of the rolled layered body l to the outer edge of the end surface. has been done.

Conventionally, when pasting the tape 7, as shown in FIG. 2(a), first about half the width of the tape 7 is pasted to the edge of the circumferential surface of the wound layered body 1, and then as shown in FIG. 2(b). ), the remaining approximately half width of the protruding tape 7 is folded and laid down toward the end face of the wound layer 1, all by hand.

However, if all the pasting of the tape 7 was done manually, not only would the work be unreasonable, but manual work would result in uneven pleating of the tape 7 when it is laid down, as shown in Figure 2(b). This results in poor appearance after packaging and reduces product value. By making incisions at appropriate intervals in the portions of the tape 7 that protrude in the direction of the end face of the rolled layered body 1 and letting it lie down, deterioration in appearance due to uneven pleating can be prevented. However, there is a problem in that it takes a lot of effort to make cuts at regular intervals, which reduces work efficiency.

The present invention solves the above-mentioned conventional drawbacks, and allows the tape to be laminated mechanically and uniformly from the circumferential end to the end face edge of a cylindrical wound layered body. The purpose of this invention is to rationalize the layered packaging and improve the appearance of the packaging.

The second feature of the structure of the present invention to achieve the above object is:
A strip-shaped tape is pasted across the circumferential edge and end face of a cylindrical layer of film or sheet material made of paper, metal, synthetic resin, etc., and is placed in advance on the layer. In the tape lamination method for fixing both or either of the circumferential pad and end pad to the layered body, the circumferential pad and/or the end pad are placed in advance by rotating the tape. At the same time, a long strip of tape is supplied to bring about half the width of the tape into close contact with the end of the same surface of the rolled layer, and the remaining half width of the tape is provided with radial protrusions on the disk. Moreover, the tape is applied to a cylindrical wound layered body in which the tape is bonded to the end face of the wound layered body by sliding pressure with a rotary plate rotated in a direction different from that of the wound layered body, thereby forming approximately evenly distributed tape pleats. The reason is that the bonding method was adopted as follows.

In this way, when the radial protrusions of the rotary plate slide and press the tape portion against the end face of the wound layer and bond it together, the gaps between the protrusions serve as escape areas and the tape is folded, and the folds is laid down by the protrusions and is further pressed and bonded, and the action of the protrusions acts regularly on the tape, so that pleats are formed in the tape almost evenly. Furthermore, since the above-mentioned operation can be easily mechanized, it is possible to obtain a state in which the tapes are bonded with a mechanically uniform appearance.

The invention will now be described in detail with reference to the drawings, which show an apparatus for carrying out the method of the invention.

FIG. 3 is a front view showing an example of a tape bonding apparatus for implementing the method of the present invention, and FIGS. fJ and 4 are side views thereof.

In the figure, reference numeral 8 denotes a drive roller for rotating the rolled layered body 1 in its circumferential direction, and this drive roller 8 is rotated by a drive device (not shown) such as a motor. The driving roller 8'' has a circumferential pad 4 in advance.
A cylindrical wound layer body l having end pads 5 arranged thereon is placed thereon.

This cylindrical layered body 1 is obtained by winding a film or sheet-like material such as paper, metal, or synthetic resin into a cylindrical shape.

Generally, the rolled body 1 is often handled with its axis perpendicular, so only the end pads 5 are used, or wrapping paper is often used in place of the peripheral pads 4. In addition, (71) a peripheral pad 4 may also be provided to ensure complete protection of the layered body 1, or in some cases, only the peripheral pad 4 may be provided.

The circumferential pad 4 refers to a protective material that covers the circumferential surface of the wound layer 1, and the end pad 5 refers to a protective material that covers the end surface of the wound layer 1, and is usually made of cardboard, cardboard, synthetic resin foam, etc. It is made up of.

The circumferential pad 4 may be wound around the body of the wound layer 1, and its terminal end may be secured with an adhesive tape or the like and placed on the layered body 1. It is preferable that the width of the circumferential pad 4 is made equal to the width of the wound layer body l. The end pad 5 has a circular shape that matches the shape of the end surface of the layered body 1, and is used to protect a part of the corner of the layered body 1 and so that it can be used even if the amount of winding of the layered body 1 changes slightly. In order to achieve this, the diameter is usually somewhat larger than the end surface diameter of the wound layer body 1, but the end surface diameter of the wound layer body 1 and the diameter of the end surface pad 5 may be made to be the same. The end pad 5 is generally secured with a cap 6 in the same manner as explained in FIG. You can stay there.

9 is a frame, and this frame 9 has an air cylinder 1.
0 and a slide rail 11 are fixed, and the base of a vertically moving table 12 is engaged with the slide rail 11 in a state where it can slide up and down along this slide rail 11. Furthermore, this vertically moving table 12 is connected to an air cylinder. 1
Supported at 0.

A horizontal movable base 13 is attached to the vertical movable base 12 so as to be able to slide horizontally along the vertical movable base 12, and an air cylinder 14 for horizontally moving the horizontal movable base 13 is also attached. There is. Horizontal moving table 13
A tape shaft 15 and a roller shaft 16 are fixed to the tape shaft 15, and a wound tape body 17 is rotatably mounted on the tape shaft 15, and a pressure roller 18 is rotatably mounted on the roller shaft 16. The tape 7 pulled out from the rolled tape body 17 and pasted onto the rolled layer body I by the method of the present invention is a single-sided adhesive tape, and is pulled out with the non-adhesive side facing the presser roller 18. Further, a knife holder 19 is attached to the base side of the roller shaft 16 so as to be able to tilt freely using the roller shaft 16 as a fulcrum, and an air cylinder 20 attached to the horizontal moving table 12 is connected to one end of the knife holder 19. A knife 21 is held downward at the other end of the knife holder 19.

By operating the air cylinder 20 and tilting the knife holder 19, the knife 2 is tilted downward by about 90 degrees.

Furthermore, an air nozzle 2 is installed on the horizontal moving table 13 toward the tape 7 that has been drawn out from the wound tape body 17 and is hanging down.
2 is installed. This air nozzle 22 is used to cause the leading end of the tape 7 to flow below the presser roller 18 with its adhesive surface facing down.

On the other hand, an air-driven rotator 23 is attached to the back of the frame 9, and this rotator 23 has an L extending laterally.
A letter-shaped arm 24 is attached, and the arm 24 is adapted to be rotated downward by approximately 90° by actuation of the rotator 23. A motor 25 is attached to the tip of the arm 24, and this motor 25 has a radial projection 2.
A circular rotating plate 27 having a diameter of 6 is attached.

The leading end of the tape 7 is pulled out to a length that allows it to wrap around below the presser roller 18 by jetting air from the air nozzle 22. Also, the carcass 1 and the frame 9 are arranged so that the end pad 5 is located approximately in the center of the chi 7
The position of is adjusted.

FIGS. 5 to 7 are diagrams each showing the operating state of the above-described device.

First, in the method of the present invention, the rolled layered body 1 having both or one of the circumferential surface pad 4 and the end surface pad 5 arranged thereon is rotated, and a long strip-shaped tape is supplied to the peripheral surface edge of the wound layered body 1. Approximately half the width of the tape 7 is brought into close contact with the tape 7, and the remaining half width of the tape 7 is attached to the center of the end surface of the wound layer 1. In other words, the drive roller 8 is rotated to rotate the rolled layer 1, and the vertical moving table 1 is moved while the tip of the tape 7 is fluttering under the presser roller 18 with air from the air nozzle 22.
When the tape 2 is lowered by the air cylinder 10, approximately half the width of the tape 7 is brought into close contact with the circumferential edge of the wound layer 1 by the presser roller 18, and the tape 7 is lowered by the rotational force of the wound layer 1.
are successively pulled out and brought into close contact in the same way.

At this time, it is preferable that the remaining half-width portion of the tape 7 be inclined toward the center of the end surface of the wound layer 1 (the reason will be described later). To this end, as shown in FIGS. 8(a) and 8(b), the tape can be shaped into a dogleg shape by using the presser roller 18 as a two-part roller arranged at appropriate intervals or as a grooved roller. What is necessary is to make it closely contact the circumferential surface end portion of the wound layered body 1 by bending it. It is also better to slightly increase the diameter of the pressure roller on the side that does not come into contact with the circumferential surface of the rolled layer. Generally, when the tape 7 is a synthetic resin tape with relatively high elongation, the presser roller 18 moves the tape 7 as shown in Fig. fJ, B (c).
By simply pressing the material onto the circumferential edge of the layered body L, the layered body L
When the tape 7 is pulled out due to the rotation of the tape 7, tension is applied to the tape 7 and the tape 7 is stretched to some extent, so that the rolled layered body 1
The portion of the tape 7 that protrudes toward the end face side may be inclined. In other words, the tension applied to the tape 7 when the tape 7 is pulled out due to the rotation of the rolled layer 1 acts largely on the side sandwiched between the rolled layer 1 and the presser roller 18, making that side relatively easy to stretch. , along with this elongation, the rolled layered body l
This is because the side with less elongation that protrudes toward the end surface side is inclined toward the center of the end surface of the wound layered body l.

However, in this case, care must be taken because the tape bonded to the circumferential surface of the wound layer body often loosens due to stress relaxation, resulting in insufficient bonding. In the present invention, it is advantageous to use a tape with low elongation and bond the tape with lower tension.

Next, using a rotary plate 27 having radial protrusions 26 and rotating in a direction different from that of the wound layer 1, the above-mentioned inclined tape 7 portion is slid and pressed toward the end surface of the wound layer 1 to be bonded. That is, the rotator 23 is operated to tilt the arm 24 downward, and the motor 25 rotates the rotary plate 27 into the wound layer l.
The surface on which the protrusions 26 are formed is brought into contact with the peripheral edge of the end surface of the wound layer 1 while being rotated in a direction different from the direction shown in FIG. In this way, the protrusions 26 of the rotary plate 27 intermittently slide and press the tape 7, causing the tape 7 to fall and adhere to the peripheral edge of the end face of the layered body l, and the recesses between the protrusions 26 are The tape 7 is folded to form a relief part, and the fold is collapsed by the protrusion 26, and is further pressed and bonded. The action of the protrusions 26 acts regularly on the tape 7, so that pleats are formed in the tape 7 almost evenly. Therefore, since the tape 7 can be laminated with a good appearance, the rolled layered body 1 can be packaged in a good-looking manner, and this can be done mechanically. In addition, the tape 7 is pasted by the rotary plate 27 so that the tape 7 is attached to the end of the entire circumferential surface of the wound layered body 1.
This may be done after pasting approximately half the width of the tape 7, but for the sake of efficiency, as shown in FIGS. It is preferable to carry out the process in parallel with the process.

Here, it is preferable that the tape portion protruding toward the end face side of the wound layer body l to be laminated by the rotary plate 27 be inclined toward the center of the end face. The first reason is that the protrusion 26 of the rotating plate 27
To facilitate pressing of the tape by a rotary plate 27 by reducing the chances of the tape being caught on the tape 7 or of the tape 7 being simply crushed without being neatly laid down, thereby facilitating end face bonding with fewer wrinkles. Furthermore, the reason piS2 is that even if the winding diameter of the wound layer body 1 changes unexpectedly and becomes larger or smaller than the diameter of the end pad 5, the protrusion of the protruding tape caused by this change will not occur. Changes in the corners are forcibly corrected, wrinkles generated on the circumferential edge of the rolled layer body, bulges of lamination, etc. are absorbed, thereby preventing deterioration of the appearance quality of the finished product. That is, this is because the tape bonding method has the advantage of being able to absorb variations in the winding diameter that tend to occur during the manufacturing process. If the rotary plate 27 rotates in the same direction as the wound layer 1, the protrusion 26 will come into contact with the adhesive surface of the tape 7, and the tape 7 will be peeled off. Furthermore, when the rotary plate 27 is not provided with the protrusion 26, the only effect that can be obtained is to simply slide and lay down the tape 7'2, and there is no effect to actively gather the tape 7. The pleats of No. 7 are irregular both in direction and interval, making it impossible to obtain a good bonding condition. As mentioned above, the rotary plate 27 is rotated in a direction different from that of the wound layer 1, and its circumferential speed depends on the number and spacing of the protrusions 26, but the same location on the tape 7 is rotated multiple times by the protrusions 26. In order to ensure complete lamination by pressing, the circumferential speed of the wound layer 1 is 5 to 1
It is preferable to set it to about 5 times. Further, the rotary plate 27 is
Preferably, the protrusion 26 is pressed elastically against the wound layer l to prevent it from getting caught on the tape 7, etc. In the illustrated apparatus, the rotator 23 is an air-driven one. By doing so, this elastic suppression can be obtained.

After the tape 7 is pasted by rotating the rolled layer 1 one or more times as described above, as shown in FIG. 7, when the horizontal moving table 13 is pushed forward by the air cylinder 14,
The presser roller 18 is separated from the wound layer l. In this state, tilt the knife holder 19 with the air cylinder 20,
By tilting the knife 21 provided on the knife holder 19 downward, the rear end of the tape 7 is cut.

After this cut end passes through the rotary plate 27, the rotation of the drive roller 8 and the rotary plate 27 is stopped, and the rotator 2
3, return the rotating plate 27 to its original position.

At the same time, the vertically moving table 12 is pulled up in two directions using an air cylinder 10, and then the horizontally moving table 13 is returned to its original position using an air cylinder 14, and the rolled body l is moved along with the drive roller 8 by 180 degrees.
The tape 7 is pasted to the other end in the same manner after 0 rotation. Further, the tape 7 may be attached to both ends of the wound layer body l at the same time.

9 to 11 show specific examples of the rotary plate 27, each of which has a radial protrusion 26. As shown in FIG. The protrusion 26 shown in FIG. 9 is a plate material bent into an F-shape, and is fixed to the rotary plate 27 with its long side facing in the rotation direction. Further, since the short side thereof is raised from the rotary plate 27, the protrusion 26 itself has the function of elastic contact with the tape 7 described above, making it difficult to be caught by the tape 7. The protrusion 26 shown in FIG. 10 is simply a flat plate tilted in the direction of rotation and fixed to the rotary plate 27, and has an elastic contact function similar to the one in FIG. 9.

The protrusion 26 shown in FIG. 11 has a slightly curved chevron-shaped cross section. As described above, various types of rotary plate 27 can be used, and the number of protrusions is determined as appropriate depending on the rotational speed of rotary plate 27 and the like. In addition, rotating plate 2
The size of the protrusion 7 is sufficient as long as the protrusion 26 is able to slide and press approximately half the width of the tape 7 protruding in the direction of the end surface of the wound layer l, and the projection 26 is large enough to slide and press on the approximately half width portion of the tape 7 projected in the direction of the end surface of the wound layer l. The position of contact with the part may be from either the top, bottom, left or right of the wound layered body 1. However, it is preferable to determine the positional relationship between the center of the end surface of the wound layered body 1 and the center of the rotating plate 27 as follows.

FIG. 12 is an explanatory diagram of the above positional relationship.

As shown in the figure, the tangent on the wound layer 1 side at the contact point P between the tape 7 to be laminated and the protrusion 26 of the rotating plate 27 is P', and the contact point P and the center O' of the rotating plate 27 are defined as P'. Let Q be the extension of the connected wire. Also, α is the interior angle between the tangent P' and the extended line Q, and is 0
is the center of the end surface of the wound layered body 1, and 0' is the center of the rotary plate 27.

At this time, the positional relationship of Q with respect to P' is such that the interior angle α is O~
It is preferable to set it within a range of 30'. however,
Extend the line from tangent P'. When the interior angle α when Q is located on the rotating plate 27 side is positive, and the interior angle α when the extended wire Q is located on the winding body 1 side from the tangent P' is negative, if the interior angle α is less than 00, As the size becomes smaller, the force of the protrusions 26 pushing the tape 7 in the direction opposite to the direction of rotation of the wound layer l increases, and the protrusions 26 are no longer able to scrunch the tape 7 in the direction of rotation, resulting in a good result. It becomes difficult to obtain a pleated state of the tape 7. Furthermore, if the internal angle α becomes too large, the force by which the protrusions 26 push the tape 7 outward becomes too large, making it difficult to neatly form pleats in the tape 7 radially.

As explained above, according to the present invention, the tape can be mechanically and neatly bonded from the circumferential edge of the cylindrical wound layer body to the end face circumferential edge, and a well-looking package can be efficiently produced. This is what you get.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an example of a rolled layered product packaged with end pads and peripheral pads, FIGS. 2(a) and 2(b) are explanatory diagrams showing the conventional tape lamination procedure, The figure is a front view showing an example of an apparatus for implementing the method of the present invention, FIG. 4 is a side view thereof, FIG. 5 is a front view of the apparatus after the start of tape bonding, and FIG. 6 is a side view thereof. FIG. 7 is a side view of the apparatus just before the end of tape bonding, FIGS. 8(a) to CC) are cross-sectional views each showing the mode of the presser roller, and FIGS. 9 to 11 are each a specific example of the rotary plate. In the figure shown, (a) is a plan view (b) is (
FIG. 12 is an enlarged sectional view taken along the line B-B in a), and is an explanatory diagram of the positional relationship between the center of the end face of the wound layered body and the center of the rotary plate. 1: Rolled layered body, 2: Core material, 3: Film or sheet-like material,
4: Surrounding pad, 5: End pad, 6: Cap, 7:
Tape, 8: Drive roller, 9: Frame, 10, Air cylinder, 11 Ni-Ride rail, 12: Vertical moving table, 13: Horizontal moving table, 14: Air cylinder, 15: Tape shaft, 16: Roller shaft, 17: Wound layer tape body, 1
8: Presser roller, 19: Knife holder, 2o: Air cylinder, 21: Knife, 22: Air nozzle, 23:
Rotator, 24: Arm, 25: Motor, 26: Projection,
27: Rotating plate. Applicant Asahi Kasei Kogyo Co., Ltd. Agent Yutaka 1) Zen ml Figure 4 0. ,) Figure 9B, 0. )Figure 11Figure 12

Claims (1)

[Claims] 1) A strip-shaped tape is attached to the circumferential edge and end surface of a rolled layered body made of a cylindrical layer of film or sheet-like materials such as paper, metal, synthetic resin, etc. In a tape lamination method for fixing both or one of a circumferential pad and an end pad arranged in advance to a wound layer, While rotating the body, supply a long strip of tape to bring about half the width of the tape into close contact with the circumferential edge of the layered body, and remove the remaining half-width of the tape that protrudes from the edge. A rotary plate having radial protrusions on the second disk and rotating in a direction different from that of the wound layer is used to press and bond the end surface of the wound layer by sliding, thereby creating an almost evenly distributed end surface. 1. A method for laminating tape to a cylindrical layered body, the method comprising forming pleats on the tape.