JP2003238909A - Cut tape machine and cut tape using in the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a cut tape machine which can add a cut tape to it without decreasing speed of a production line, and to obtain the cut tape using in the machine. <P>SOLUTION: Two cut tapes 42 and 44 are passed to a roller units 86 and 96 part of extended equipment 70 adding the cut tape thereto through sensor parts 80 and 82. When residues of the cut tape fed to a corrugated paper production process are detected to be a little, the roller unit 86 is removed to the side of the roller unit 96. The cut tape 42 and the cut tape 44 in waiting are held between the roller units 86 and 96, and joined with a double-adhesive tape formed at an end part of the cut tapes 42 and 44. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cut tape machine and a cut tape used for the same, and more particularly to a cut tape for sticking to the inside of a cardboard box so that the cardboard box can be opened, and a cut tape for the cardboard. The present invention relates to a cut tape machine for sticking.

[0002]

2. Description of the Related Art FIG. 13 is an illustrative view showing an example of a cardboard box. A cut tape 2 is attached to the inner wall of the cardboard box 1. The cut tape 2 is attached so as to go around the inside of the cardboard box 1, and a cut is formed in the cardboard box 1 at one end thereof to form a knob 3. By pulling the grip portion 3 toward the outside of the cardboard box 1, the cut tape 2 is also pulled, and the cardboard is torn by the cut tape 2 as shown in FIG. Therefore, the cardboard box 1 can be opened by going around the outside of the cardboard box 1 with the grip portion 3.

Such a cut tape 2 is attached to a corrugated board in a corrugated board manufacturing process before the box is formed. Then, the cardboard with the cut tape 2 attached thereto is cut and folded to form the cardboard box 1.

To form a corrugated board, a corrugator machine 4 as shown in FIG. 15 is used. The corrugator machine 4 includes a single facer 5. In the single facer 5, the liner drawn from the liner mill roll stand 7 is attached to one surface of the core drawn from the corrugated fiber core mill roll stand 6.

A core having a liner attached to one surface thereof is guided to a preheater 9 and heated together with a liner pulled out from another liner mill roll stand 8. Further, the glue is applied to the core with the glue machine 10,
A liner is attached to the other surface of the core. In this way, liners are attached to both surfaces of the core and heated in the heating part 11 to sufficiently bond the core and the liner. Then, in the cooling part 12, the bonded core and liner are cooled to form a corrugated board.

The cut tape 2 is attached to the obtained corrugated board by the cut tape machine 13. Cut tape 2
The corrugated cardboard attached with is cut by the rotary cutter 14 and the slitter 15 to have predetermined vertical and horizontal dimensions. When the core or liner of the corrugated cardboard wound around the roll mill stand is lost, the new core or liner is connected with an adhesive tape or the like. In this case, as the adhesive tape, a tape including a base material made of a metal material such as aluminum foil and having adhesive layers formed on both surfaces thereof is used. Then, the metal foil of the adhesive tape is detected by the diverter 16, and the connecting portion of the corrugated board is removed. The corrugated board thus obtained is accumulated in the down stacker 17.

The cut tape machine 13 includes two hangers 18a and 18b, as shown in FIG. The cut tape 2 wound around a core material such as a paper tube is held on these hangers 18a and 18b. One hanger one
The cut tape 2 pulled out from 8a is pressed against the cardboard by the pressing roller 20 via the plurality of guide rollers 19. Thereby, the adhesive layer formed on one surface of the cut tape 2 is pressed against the corrugated board, and the cut tape 2 is attached to the corrugated board.

The cut tape 2 held by the other hanger 18b stands by in the state of being pulled out near the cut tape 2 attached to the corrugated board. When the cut tape 2 attached to the corrugated cardboard runs out, the cut tape 2 is switched to the standby cut tape 2.

[0009]

However, since the corrugated board manufactured by the corrugator machine is long, if the cut tape wound around the corrugated board disappears, a part of the corrugated board where the cut tape is not adhered is generated. for that reason,
When the remaining amount of the cut tape becomes small to some extent, the cutter 21 cuts the cut tape and switches to a new standby cut tape. Therefore, the cut tape left unattached to the corrugated board is not used, resulting in a large waste.

Therefore, it is conceivable to use the wound cut tape to the end and connect the end of the cut tape to another waiting cut tape to use the cut tape without waste. In this case, the operator visually checks the remaining amount of the cut tape in use, stops or slows down the production line, and manually connects the cut tape. As described above, since the work of adding the cut tape in use to the new cut tape is manually performed, it is difficult to perform the work at high speed operation, and there is a high possibility of failure.

Therefore, a main object of the present invention is to provide a cut tape machine which can add cut tapes without slowing down the production line. Another object of the present invention is to provide a cut tape used in the cut tape machine as described above.

[0012]

The present invention is a cut tape including a tape material having an adhesive layer formed on one surface, and double-sided adhesive tape formed on both ends of the tape material.
In such a cut tape, a core material for winding the tape material and the double-sided adhesive tape may be included,
A dustproof cover for protecting the double-sided adhesive tape from dust is preferably attached to at least one end of the core material. Further, the double-sided adhesive tape at the beginning of winding the tape material around the core material includes a base material using a metal material or a shield for shielding light, and an adhesive layer formed on both surfaces of the base material. Can be Further, the present invention includes two hangers for holding the above-mentioned first or second cut tape, and two roller units arranged so as to sandwich the two cut tapes pulled out from the two hangers, At least one detection means for detecting that the number of cut tapes held by the hanger has decreased, and for contacting the two cut tapes when one of the cut tapes has been detected by the detection means Drive means for bringing one roller unit closer to the other roller unit, and each roller unit is formed by a combination including two rollers having concave grooves and convex surfaces on which the cut tape contacts, A roller having a grooved surface and a roller having a convex surface when the two roller units are brought close to each other. Door is pressed against each other across the two cut tape, a cut tape machine. Also, the present invention provides two hangers for holding the above-mentioned third cut tape, and two hangers.
By the two roller units arranged so as to sandwich the two cut tapes pulled out from one hanger, at least one detection means for detecting that the cut tapes held by the hangers have run out, and the detection means. And driving means for bringing one roller unit closer to the other roller unit so as to bring the two cut tapes into contact with each other when it is detected that one of the cut tapes has run out. A roller having a grooved surface and a roller having a convex surface when the two roller units are brought close to each other, the contacting surface being formed by a combination including two rollers having a grooved shape and a convex shape; Is a cut tape machine that presses two cut tapes between them. In these cut tape machines, the detection means may be a winding diameter sensor for measuring the winding diameter of the cut tape held by the hanger. Further, in a cut tape machine using a cut tape using a metal foil or a shield as a base material, the detection means may be a sensor for detecting the base material of the double-sided adhesive tape at the winding start part on the core material. it can. Further, in a cut tape machine using a cut tape using a metal foil or a shield as a base material, as a detection means, a winding diameter sensor for measuring the winding diameter of the cut tape held on the hanger, and a core material A sensor for detecting the base material of the double-sided adhesive tape at the winding start portion may be included. further,
It may include two straightening rollers arranged on the hanger side of each roller unit to prevent the cut tape from swinging by sandwiching the cut tape.
The surfaces of the two straightening rollers that come into contact with the cut tape are formed in a groove shape and a convex shape, respectively. In addition, in a cut tape machine using a cut tape having a metal foil or a shield as a base material, the cut tape machine is further arranged on the hanger side of each roller unit to prevent the cut tape from swinging by sandwiching the cut tape. Including two straightening rollers,
The surfaces of the two straightening rollers that come into contact with the cut tape are formed in a concave groove shape and a convex shape, respectively, and the winding diameter sensor detects that the winding diameter of the cut tape is small, and has a concave groove surface. May be moved to the side of the straightening roller having a convex surface. Further, it is preferable to include a feeding device which is formed in the vicinity of the hanger and which feeds out the other cut tape when the remaining amount of one cut tape is detected by the detection means.

By forming the double-sided adhesive tape on both ends of the tape material, the two tapes can be connected by pressing the double-sided adhesive tape of one cut tape against the other cut tape. Here, by attaching a dustproof cover to the end of the core material wound with the tape material and the double-sided adhesive tape, it is possible to prevent dust from adhering to the adhesive layer surface of the double-sided adhesive tape exposed at the end of the core material. can do. At this time, when the cut tape is used, the remaining amount becomes small by using a base material using a metal material or a shield that shields light as the double-sided adhesive tape at the beginning of winding on the core material. Since the double-sided adhesive tape is pulled out, it becomes easy to detect the base material with a metal sensor or an optical sensor. In a cut tape machine using such a cut tape, by arranging the roller units so as to sandwich the two cut tapes, detecting the remaining amount of the cut tapes, and bringing one roller unit closer to the other roller unit, The double-sided adhesive tape formed on the cut tape of 1 comes into contact with the other cut tape to connect the two cut tapes. At this time, a roller unit is constituted by a roller having a concave groove shape and a convex roller whose contact surface of the cut tape, and when the two roller units are brought close to each other, the concave groove roller and the convex roller are combined. By doing so, the two cut tapes overlap each other at the groove portion of the grooved roller, and the two cut tapes can be accurately connected. At this time, in order to detect the remaining amount of the cut tape, detection can be performed by measuring the winding diameter of the cut tape wound on the hanger with a winding diameter sensor. In addition, when a double-sided adhesive tape used for a cut tape is one that uses a metal material or a base material that uses a shielding material for shielding light, a metal sensor or a sensor is used to detect the remaining amount of the cut tape. You may detect the double-sided adhesive tape formed in the edge part of a tape with an optical sensor etc. Further, both the winding diameter sensor and the sensor for detecting the base material of the double-sided adhesive tape may be used to detect the remaining amount of the cut tape. By using a straightening roller having concave and convex surfaces in contact with the tape, it is possible to correct the runout of the cut tape supplied to the roller unit, and the two cut tapes are accurately overlapped in the roller unit. be able to. In particular, when both the roll diameter sensor and the sensor for detecting the base material of the double-sided adhesive tape are used, the roll diameter sensor detects that the roll diameter of the cut tape has become small and sandwiches the cut tape between straightening rollers. By bending, it is possible to prevent the cut tape from swinging. The two cut tapes can be connected by driving the roller unit by detecting the base material of the double-sided adhesive tape. Furthermore, by detecting that the remaining amount of one cut tape is low and sending out the other cut tape, when the cut tapes are replenished, the other cut tapes are not shocked suddenly It is possible to prevent the cut tape from being cut due to a shock that occurs when adding.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments of the invention with reference to the drawings.

[0015]

1 is an illustrative view showing an example of a cut tape machine of the present invention. The cut tape machine 30 includes two hangers 34 and 36, and the cut tapes 42 and 44 wound around the core materials 38 and 40 are attached to the hangers 34 and 36, respectively.

The cut tapes 42 and 44 are respectively shown in FIG.
As shown in FIG. 3, the tape member 46 is made of a synthetic resin such as polypropylene. The tape material 46 is formed so as to transmit light, for example. An adhesive layer is formed on one surface of the tape material 46. Double-sided adhesive tapes 48 and 50 are attached to both ends of the tape material 46.
On the other hand, the double-sided adhesive tape 48 includes a base material made of a metal foil such as an aluminum foil or a shield for shielding light, or a base material obtained by laminating a metal foil or a shield with a synthetic resin such as polypropylene. The adhesive layer is formed on both sides. The double-sided adhesive tapes 48 and 50 are
Each is attached to the adhesive layer forming surface of the tape material 46.
Then, the double-sided adhesive tapes 48, 50 are arranged so as to extend from the ends of the tape material 46. Here, tape material 4
The release paper 52 is temporarily attached to one surface of the double-sided adhesive tapes 48 and 50 extending from 6. The release paper 52 is temporarily attached to the double-sided adhesive tapes 48 and 50 on the tape material 46 side.
The double-sided adhesive tapes 48 and 50 do not have to be formed separately from the tape material 46, and the adhesive material layers may be formed on both surfaces of both ends of the tape material 46.
In this case, at least the portion used as the double-sided adhesive tape 48, the tape material 46 is laminated with a metal foil, a shield, or the like.

As the core members 38 and 40, for example, paper tubes or the like are used, and cut tapes 42 and 44 are wound as shown in FIGS. 3 (A) and 3 (B). At this time, the core material 38,
A double-sided adhesive tape 48 having a base material formed of metal foil or the like is attached to one end side of 40. Then, following the double-sided adhesive tape 48, the tape material 46 is wound by bifilar winding. At this time, the cut tape 42,
The winding start portion of 44, that is, the end portion of the double-sided adhesive tape 48 is wound so as to be exposed at the end portions of the core members 38 and 40.

Further, as shown in FIG. 4, a dustproof cover 54 is attached to the end portions of the core members 38 and 40 on the side where the double-sided adhesive tape 48 is exposed. The dust-proof cover 54 is shown in FIG.
As shown in FIG. 5, it includes a cylindrical portion 54a formed in a cylindrical shape. A brim-shaped portion 54b is formed so as to extend from one end of the tubular portion 54a toward the outer peripheral side of the tubular portion 54a. The collar portion 54b is formed such that the outer peripheral portion thereof is inclined toward the tubular portion 54a side. Further, the tubular portion 54a is formed in a taper shape so that the diameter of the tubular portion 54a gradually increases from the flange portion 54b toward the opposite side. Further, a plurality of cuts 54c are formed in the tubular portion 54a from the tapered end portion toward the flange portion 54b side.

The dustproof cover 54 is made up of the cut tapes 42, 4
4 is fitted inside the wound core members 38 and 40.
At this time, since the notch 54c is formed in the tubular portion 54a, the tubular portion 54a easily bends in the inner circumferential direction,
The tubular portion 54a can be easily inserted into the core members 38 and 40. Further, since the tubular portion 54a is formed in a tapered shape, the tubular portion 54a fitted to the core members 38, 40 is unlikely to come off.

The cut tapes 42 and 44 are attached to the hangers 34 and 36, respectively. At this time,
The release paper 52 temporarily attached to the double-sided adhesive tape 48, 50 is released. As shown in FIG.
As shown in FIG. 5, the winding diameter sensors 56 and 5 are provided as detecting means for detecting the remaining amount of the cut tapes 42 and 44, respectively.
8 are contacted. The winding diameter sensors 56, 58 are, for example, angle sensors with arms attached, and the arms are brought into contact with the outer peripheral surfaces of the cut tapes 42, 44.
Therefore, the winding diameter of the cut tapes 42, 44, that is, the remaining amount of the cut tapes 42, 44 can be known by detecting the angle of the arm with the angle sensor.

Further, in the vicinity of the hangers 34 and 36,
Delivery devices 60, 62 are formed. Sending device 6
0 and 62 include, for example, arms 60a and 62a, and drive rollers 60b and 62 are attached to these arms 60a and 62a.
b is attached. Then, the arms 60a and 62
When the drive rollers 60b and 62b are pressed against the wound cut tapes 42 and 44 by a, the drive roller 6b
0b, 62b rotate, the cut tape 42, which comes into contact
44 is sent out.

One of the cut tapes 42 is guided to a straightening roller unit 69 and a cut tape extension device 70 via guide rollers 64, 66 and 68. Further, the other cut tape 44 is guided to the correction roller unit 69 and the cut tape extension device 70 via the guide roller 72.

The straightening roller unit 69 is shown in FIG.
As shown in (B) and (C), straightening rollers 74a and 74b
And straightening rollers 76a and 76b. Straightening roller 7
As shown in FIG. 6 (B), the outer peripheral surface of 4a is formed in the shape of a groove at the center in the width direction. Also, the straightening roller 74b
Is formed such that the central portion in the width direction of its outer peripheral surface is convex. Further, the straightening roller 74a includes the air cylinder 7
It is attached to No. 8 and can be moved to the correction roller 74b side. Therefore, FIG. 7 (A) (B) (C)
As shown in FIG. 5, the correction roller 74a is moved so that the concave groove of the correction roller 74a and the convex portion of the correction roller 74b are fitted together. Therefore,
Cut tape 4 passed between straightening rollers 74a and 74b
No. 2 is sandwiched between the concave groove and the convex portion, and the shake of the bifilar wound cut tape 42 can be suppressed.

Similarly, the straightening roller 76a is formed such that the central portion in the width direction of the outer peripheral surface thereof is formed into a groove shape, and the straightening roller 76b is formed.
Is formed such that the central portion in the width direction of its outer peripheral surface is convex. The straightening roller 76a is connected to the air cylinder 7
By means of 8, it is possible to move toward the straightening roller 76b. Therefore, when the straightening roller 76a moves, the concave groove of the straightening roller 76a and the straightening roller 7a are moved.
6b and the convex part of 6b fit and are combined.
Therefore, the cut tape 44 passed between the correction rollers 76a and 76b is sandwiched between the concave groove and the convex portion, and the shake of the bifilar wound cut tape 44 can be suppressed.

The cut tape 42 passing between the straightening rollers 74 a and 74 b is sent to the sensor unit 80 in the extension unit 70 for adding cut tape. The sensor section 80 is used as a detecting means for detecting the remaining amount of the cut tapes 42 and 44, and is composed of, for example, a light emitting element and a light receiving element.
In this case, the tape material 46 used for the cut tapes 42 and 44 is formed so that light can pass therethrough, and the light from the light emitting element is blocked by the base material portion of the double-sided adhesive tape 48 on one side. Therefore, it can be seen that the tape material 46 passes through the sensor portion 80 while the light receiving element detects the light, and the double-sided adhesive tape 48 passes when the light is not detected by the light receiving element. A metal sensor or the like may be used as the sensor unit 80. In this case, the double-sided adhesive tape 4 is used.
The metal foil used as the base material of No. 8 and the metal material laminated on the synthetic resin are detected.

Similarly, the cut tape 44 passing between the straightening rollers 76a and 76b is sent to the sensor unit 82 in the extension device 70 by adding the cut tapes. In the sensor section 82 as well, the difference between the tape material 46 and the double-sided adhesive tape 48 is detected in the same manner as the sensor section 80.

Further, as shown in FIGS. 8A, 8B, 8C and 8D, one of the cut tapes 42 passes through the guide roller 84 and is sent to the one roller unit 86.
The roller unit 86 includes three rollers 88, 90, 92.
Composed of. On the surface of the roller 88 near the guide roller 84, a concave groove having a width in which the cut tapes 42 and 44 are fitted is formed. Further, the surface of the next roller 90 is formed in a convex shape having a width corresponding to the width of the cut tapes 42 and 44. The roller 92 is a cylindrical roller having no unevenness on its surface. In this roller unit 86, the roller 88 having the groove is formed by the cut tape 42.
It is arranged so as to project to the side.

The other cut tape 44 passes through the guide roller 94 and is sent to the other roller unit 96. The roller unit 96 includes three rollers 98, 10
It is composed of 0 and 102. The surface of the roller 98 near the guide roller 94 is the roller 8 of the one roller unit 86.
It is formed in a convex shape having a width that fits in the concave groove formed in 8. Further, on the surface of the next roller 100, a concave groove having a width that fits into the convex portion formed on the roller 90 of the one roller unit 86 is formed. The roller 102 is a cylindrical roller having no unevenness on its surface. In this roller unit 96, the roller 100 having a groove is formed.
Are arranged so as to protrude toward the cut tape 44.

The two roller units 86 and 96 are shown in FIG.
As shown in (A), (B), and (C), the V-shaped arms 108 and 110 are attached to one end side via grooves 106 formed in a substrate 104 supporting each roller. The bent portions of the V-shaped arms 108 and 110 are rotatably supported.
Then, elongated holes are formed at the other ends of the V-shaped arms 108 and 110, and the air cylinders 112 and 11 are formed in these elongated holes.
The ends of the four rods 112a and 114a are fitted.
The air cylinders 112, 114 include the roller unit 86,
It is used as a driving means for moving 96. Therefore, when the air cylinders 112 and 114 are driven, the V-shaped arms 108 and 110 rotate about their supporting portions. Thereby, the V-shaped arm 1
Roller units 86 and 96 attached to one end sides of 08 and 110 move along the groove 106.

One of the cut tapes 42 passes through the vicinity of the roller unit 86, then passes between two rollers attached to the lower roller unit 116, and is attached to a corrugated board. The lower roller unit 116 is formed so as to be movable between the two roller unit 86 sides and the roller unit 96 side. Magnet catches 118 and 120 are formed on the roller unit 86 side and the roller unit 96 side, respectively. These magnet catches 118 and 120 are used for the lower roller unit 11
6 is used for fixing the lower roller unit 11
When 6 moves, lower roller unit 116 is released from the magnet catch.

The other end of the cut tape 44 is placed in the vicinity of the roller unit 96 and stands by.
At this time, the double-sided adhesive tape 5 at the end of the cut tape 44
0 is arranged in the vicinity of the roller 100 in which the groove is formed. The release paper 52 temporarily attached to the double-sided adhesive tape 50 has been removed, and the adhesive material layers on both sides are exposed.

In the cut tape machine 30 in such a state, one cut tape 42 is sequentially drawn out and attached to the corrugated board by the pressing roller 20. When the cut tape 42 is pulled out and the remaining amount of the cut tape 42 wound around the core material 38 becomes small, the winding diameter sensor 56
Detects that the remaining amount is low.

When the remaining amount of the cut tape 42 becomes low,
The air cylinder 78 is driven, and FIGS. 7 (A) (B) (C)
As shown in, the straightening rollers 74a and 76a move to the straightening rollers 74b and 76b side. At this time, the straightening roller 7
Since the concave grooves are formed on the surfaces of 4a and 76a, the cut tapes 42 and 44 are pressed against the correction rollers 74b and 76b while being fitted in the concave grooves. Since the surfaces of the straightening rollers 74b and 76b are formed in a convex shape, this convex portion fits into the concave grooves of the straightening rollers 74a and 76a, and the shake of the cut tapes 42 and 44 is prevented. Therefore, even if the cut tapes 42 and 44 wound by the bifilar winding on the core materials 38 and 40 are pulled out, the straightening roller 74
a, 74b and straightening rollers 76a, 76b,
Runout is prevented.

When the double-sided adhesive tape 48 is detected by the sensor section 80 when the remaining amount of the cut tape 42 becomes small, as shown in FIGS. 9 (A) (B) (C) (D), The cylinder 112 is driven and the roller unit 86 moves to the roller unit 96 side. At this time, since the roller 88 in which the groove is formed is arranged so as to project toward the cut tape 42 side, the roller 88 moves to the roller unit 96 side with the cut tape 42 fitted in the groove. And
Rollers 88 and 98, rollers 90 and 100,
The rollers 92 and 102 form the cut tapes 42, 4
Insert 4 Here, the groove of the roller 88 and the roller 98
And the cut tapes 42 and 44 are sandwiched by the convex portions of the roller 90 and the concave grooves of the roller 100.

By bringing the cut tapes 42 and 44 into contact with each other, the double-sided adhesive tape 48 of the cut tape 42 and the double-sided adhesive tape 50 of the cut tape 44 are attached. Thereby, the two cut tapes 42 and 44 are replenished, and the cut tapes 42 and 44 are continuously supplied to the corrugated board without interruption. A series of operations at this time
This is shown in FIGS. 10 (A) (B) (C). When the cut tape 42 disappears, the roller unit 86 returns to the original position, the new cut tape 42 is held by the hanger 34, the release paper 52 of the double-sided adhesive tape 50 is removed, and the roller unit 86 is pulled out. You can wait.

When the winding diameter sensor 56 detects that the remaining amount of the cut tape 42 is low, the feeding device 62 moves to the cut tape 44 side and the drive roller 62b is driven, thereby waiting. The cut tape 44 of is gradually fed out. By doing so, when the cut tapes 42, 44 are connected, it is possible to prevent the cut tape 44 from being cut without a sudden shock being applied to the cut tape 44 on standby. However, if a shock that does not cut the standby cut tape is applied, the feeding device 6
0 and 62 may not be provided.

When the roller unit 86 moves to connect the cut tapes 42 and 44, the lower roller unit 116 is also moved by being pulled by the cut tape 42. At this time, the lower roller unit 116 is detached from one of the magnet catches 118, and after moving,
It is fixed to the other magnet catch 120. Therefore, after the cut tapes 42 and 44 are connected, the lower roller unit 116 passes the cut tape 44 on the roller unit 96 side.

On the contrary, when the cut tape 44 is being supplied to the corrugated board, the winding diameter sensor 58 detects that the remaining amount of the cut tape 44 is low. As a result, the straightening rollers 74a and 76a move and the shake of the cut tape 44 is prevented. Then, the feeding device 60 gradually feeds the standby cut tape 42.

Further, the cut tape 44 is attached to the sensor section 82.
When the double-sided adhesive tape 48 of FIG.
As shown in (B), (C), and (D), the air cylinder 114
Is driven, and the roller unit 96 moves to the roller unit 86.
Move to the side. At this time, the roller 10 in which the groove is formed
Since 0 is arranged so as to project to the cut tape 44 side, the cut tape 44 moves in a state where the cut tape 44 is fitted in the groove. The cut tapes 42 and 44 are sandwiched between the roller units 86 and 96, and the cut tapes 4
2, 44 are connected. These series of operations are shown in FIG.
(A) and (B).

By using a synthetic resin laminated with a metal foil or a metal material as the base material of the double-sided adhesive tape 48 at the connecting portion of the cut tapes 42 and 44, it can be detected by the diverter of the corrugator machine. The connecting portion of the cut tapes 42 and 44 can be removed.

Thus, this cut tape machine 30
With, you can connect to a new cut tape without stopping the machine even if one cut tape runs out,
The cut tape can be continuously attached to the corrugated board.

In this cut tape machine 30,
In order to detect the remaining amount of cut tape, the roll diameter sensor 5
6, 58 and a sensor unit 8 such as an optical sensor or a metal sensor
Although two types of 0 and 82 are used, the remaining amount of the cut tape may be detected by only one of the sensors. In this case, it is possible to provide a time lag in the operation of the feeding devices 60 and 62, the correction rollers 74a and 76a, and the roller units 86 and 96, if necessary.

Further, since the optical sensor or the metal sensor is used as the sensor portions 80 and 82, the cut tape 42,
As the base material of the double-sided adhesive tape 48 on the winding start side of 44,
A metal foil such as an aluminum foil or a synthetic resin laminated with a metal material can be used. By using such a double-sided adhesive tape 48, it is possible to detect that the ends of the cut tapes 42, 44 are approaching in the sensor units 80, 82.

Further, these cut tapes 42, 44
Then, the release paper 52 of the double-sided adhesive tape 48, 50 at both ends
Is attached to the hangers 34 and 36 in a state of being peeled off, but when these cut tapes 42 and 44 are in a standby state, the double-sided adhesive tape 4 on the winding start side around the core materials 38 and 40
The adhesive layer 8 is exposed for a long time. However, since the dustproof cover 54 is formed, it is possible to prevent the adhesive force of the pressure-sensitive adhesive layer from being lowered due to the adhesion of dust or the like.

Further, in the above-mentioned cut tape machine 30, the air cylinders 112 and 114 are used as the driving means for moving the roller units 86 and 96, but in order to move these roller units 86 and 96. In addition, a servo motor or the like may be used, and the driving means is not limited to a particular one.

Further, instead of the feeding devices 60 and 62, a motor may be attached to the hangers 34 and 36 for holding the cut tapes 42 and 44. In this case, when the remaining amount of one of the cut tapes 42 becomes small, the motor attached to the hanger 36 rotates and the cut tapes 44 on standby are sent out. And cut tape 4
When the cut tapes 44 are pulled out by adding 2 and 44 together, the rotation of the motor is stopped. At this time, since the cut tape 44 is pulled out, the hanger 36 rotates, and the motor attached thereto operates in the generator area and is used for braking. When the remaining amount of the cut tape 44 decreases, the winding diameter decreases, the rotation speed increases, and the current value output from the motor increases. Therefore, the winding diameter of the cut tape 44 can be detected by measuring the current value output from the motor.

As described above, the motor can be used as the winding diameter sensor and the feeding device. in this case,
The winding diameter sensor and the feeding device using the arm can be omitted, and a space for mounting these is not required. Therefore, the cut tape machine 30 can be downsized. Thus, as long as the remaining amount of the cut tape can be detected, it can be used as the winding diameter sensor and is not limited to a specific one. Similarly, as long as the cut tape can be delivered, it can be used as a delivery device and is not limited to a particular device.

[0048]

According to the present invention, when a cut tape is attached to a corrugated board, a new cut tape can be added even if the wound cut tape is used up.
At this time, it is not necessary to stop the machine or slow down the operating speed, and it is possible to prevent the productivity of the corrugated cardboard with the cut tape from being reduced. In addition, a double-sided adhesive tape may be formed on both ends of the tape in order to add the cut tapes by using such a cut tape machine. At this time, by using a metal foil such as an aluminum foil as the base material of the double-sided pressure-sensitive adhesive tape at the winding start portion on the core material, it is possible to easily detect the end of the cut tape in the sensor portion.

[Brief description of drawings]

FIG. 1 is an illustrative view showing one example of a cut tape machine of the present invention.

FIG. 2 is an illustrative view showing one example of a cut tape used in the cut tape machine of the present invention.

3A is a plan view showing a state in which the cut tape shown in FIG. 2 is wound around a core material, and FIG. 3B is a side view thereof.

4 is an illustrative view showing a state in which a dustproof cover is attached to the core material shown in FIG.

5 is an illustrative view showing a structure of the dustproof cover shown in FIG. 4. FIG.

FIG. 6A is a plan view showing a straightening roller unit, and FIG. 6B is a side view solution diagram showing the internal structure thereof.
(C) is a plan view showing an internal structure.

7A is a plan view showing a state when the straightening roller unit shown in FIG. 6 is driven, FIG. 7B is a side view solution diagram showing the internal structure, and FIG. 7C is an internal structure. It is a top view solution figure showing.

FIG. 8 (A) is a plan view showing a cut tape extension device, FIG. 8 (B) is a side view solution diagram showing the internal structure thereof, and FIG. 8 (C) is a view taken along the line EE. (D) is the arrow view in the AA, BB, CC, and DD.

9A is a plan view showing a state in which one roller unit is driven in the cut tape adding and extending device shown in FIG. 8, and FIG. 9B is a side view showing an internal structure thereof. It is a figure, (C) is the EE arrow line view, (D) is the arrow line view in the AA, BB, CC, and DD lines.

FIG. 10 is an illustrative view showing a series of movements of the cut tape adding and extending device when one cut tape is added to the other cut tape.

11A is a plan view showing a state when the other roller unit is driven in the cut tape joining and extending device shown in FIG. 8, and FIG. 11B is a side view showing an internal structure thereof. It is a figure, (C) is the EE arrow line view, (D) is the arrow line view in the AA, BB, CC, and DD lines.

FIG. 12 is an illustrative view showing a series of movements of the cut tape adding and extending device when adding the other cut tape to the one cut tape.

FIG. 13 is a perspective view showing an example of a cardboard box to which a cut tape is attached.

FIG. 14 is an illustrative view showing a state when the cardboard box shown in FIG. 13 is opened.

FIG. 15 is an illustrative view showing one example of a corrugator machine for producing corrugated board.

FIG. 16 is an illustrative view showing one example of a conventional cut tape machine.

[Explanation of symbols]

30 cut tape machine 34,36 hangers 38,40 core material 42,44 cut tape 46 tape material 48,50 double-sided adhesive tape 54 Dust cover 56,58 Roll diameter sensor 60,62 Feeding device 69 Straightening roller unit 70 Cut tape extension unit 74a, 74b, 74c, 74d Straightening roller 80,82 Sensor part 86, 96 roller unit 88, 90, 92, 98, 100, 102 rollers 102,104 Air cylinder

Claims (11)

[Claims] 1. A cut tape comprising a tape material having an adhesive layer formed on one surface thereof, and a double-sided adhesive tape formed on both ends of the tape material. 2. A dustproof cover for protecting the double-sided adhesive tape from dust is attached to at least one end of the core material, which includes a core material for winding the tape material and the double-sided adhesive tape. The cut tape according to claim 1. 3. The double-sided adhesive tape at the winding start portion of the tape material around the core material includes a metal material or a base material using a shielding body for shielding light, and is adhered to both surfaces of the base material. The cut tape according to claim 1 or 2, wherein the agent layer is formed. 4. Two hangers for holding the cut tape according to claim 1 or 2, and two roller units arranged so as to sandwich the two cut tapes drawn out from the two hangers. At least one detecting means for detecting that the cut tape held by the hanger has run low,
And a driving means for bringing one of the roller units closer to the other of the roller units so as to bring the two cut tapes into contact with each other when the detection means detects that one of the cut tapes is running low, Each of the roller units is formed by a combination including two rollers having concave and convex surfaces in contact with the cut tape, and has a concave groove surface when the two roller units are brought close to each other. A cut tape machine in which the roller having the cut surface and the roller having a convex surface are pressed against each other with the two cut tapes sandwiched therebetween. 5. Two hangers for holding the cut tape according to claim 3, two roller units arranged to sandwich the two cut tapes drawn from the two hangers, and the hanger. At least one detection means for detecting that the cut tape held is low;
And a driving means for bringing one of the roller units closer to the other of the roller units so as to bring the two cut tapes into contact with each other when the detection means detects that one of the cut tapes is running low, Each of the roller units is formed by a combination including two rollers having concave and convex surfaces in contact with the cut tape, and has a concave groove surface when the two roller units are brought close to each other. A cut tape machine in which the roller having the cut surface and the roller having a convex surface are pressed against each other with the two cut tapes sandwiched therebetween. 6. The cut tape machine according to claim 4, wherein the detection means is a winding diameter sensor for measuring a winding diameter of the cut tape held by the hanger. 7. The cut tape machine according to claim 5, wherein the detection means is a sensor for detecting the base material of the double-sided adhesive tape at a winding start portion around the core material. 8. The winding means for measuring the winding diameter of the cut tape held by the hanger, and the base material of the double-sided adhesive tape at the winding start portion on the core material. The cut tape machine according to claim 5, comprising a sensor for detecting. 9. The apparatus further comprises two straightening rollers which are arranged on the hanger side of each of the roller units and which prevent the cut tape from swinging by sandwiching the cut tape. The cut tape machine according to any one of claims 4 to 8, wherein the surfaces in contact with the cut tape are formed in a concave groove shape and a convex shape, respectively. 10. The apparatus further comprises two straightening rollers which are arranged on the hanger side of each of the roller units and which prevent the cut tape from swinging by sandwiching the cut tape. The surfaces in contact with the cut tape are formed in a concave shape and a convex shape, respectively, and the straightening roller having the concave groove surface is detected by the winding diameter sensor detecting that the winding diameter of the cut tape has decreased. It was moved to the correction roller side having a convex surface,
The cut tape machine according to claim 8. 11. A feeding device, which is formed in the vicinity of the hanger and which feeds out the other cut tape when the remaining amount of one of the cut tapes is detected by the detecting means, The cut tape machine according to any one of claims 4 to 10.