JP6017188B2 - Tape applicator - Google Patents

Description

  The present invention relates to a tape attaching apparatus for fixing a tail hanging from an old web to the new web with an adhesive tape when connecting the old web and the new web.

  A web of paper, cloth, film, metal foil or the like is wound around a core, and after the web is unwound from the core by an unwinding device, a coating solution is applied by a coating device or in a heat treatment device. It is heat-treated.

  In this unwinding device, before all the web (hereinafter referred to as “old web”) is unwound from the old core, the starting end of the web (hereinafter referred to as “new web”) wound around the new core is removed. The end portions of the old web are connected by double-sided adhesive tape (see, for example, Patent Documents 1, 2, and 3).

  At this time, since the end portion of the old web does not coincide with the position of the double-sided adhesive tape, an extra portion called a tail is generated on the old web side. This tail promotes fluttering within the heat treatment chamber of the heat treatment apparatus, as the coating liquid adheres with the coating head in the coating apparatus.

  On the other hand, since the seam of the old web and the new web is only connected by the double-sided adhesive tape as described above, it is weaker than other parts, so the seam of the old web and the new web is reinforced with the reinforcing tape. A reinforcing tape applying apparatus has been proposed (see Patent Document 4).

JP 2001-163487 A JP 2001-171872 A JP 2001-114457 A JP 2011-246277 A

  The reinforcing tape applying device is composed of a reinforcing tape roll, a cutter, a starting end holding roll, and a nip roll. The reinforcing tape drawn out from the reinforcing tape roll is cut by a cutter, and the starting end of the reinforcing tape is cut into a web by a holding roll. After affixing weakly, the reinforcing tape is fixed by pressing with a nip roll.

  However, since this reinforcing tape attaching device is not intended to attach the tail of the old web to the new web, the tail end portion of the tail may hang down from the new web even if reinforcement is possible.

  Further, the holding roll is a roll having an adhesive strength weaker than the adhesive strength of the reinforcing tape to the web, and the reinforcing tape is rolled even if the holding roll is separated from the web by weakly adhering the holding roll to the reinforcing tape. The reinforcing tape can be applied in order while keeping it attached to the surface (see paragraph 0035 of Patent Document 4). However, it is difficult to prepare a roll having an adhesive strength that is weaker than the adhesive strength of the reinforcing tape to the web, and Patent Document 4 does not specifically describe the configuration. Moreover, even if this holding roll can be prepared, if the reinforcing tape applying device has been used for many years, the adhesive strength deteriorates, and the reinforcing tape cannot be applied sequentially.

  SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a tape applicator that attaches the tail of an old web to a new web with an adhesive tape at the joint between the old web and the new web.

The present invention includes a guide roll for running a web in which the start end of a new web is overlapped in the vicinity of the end of the old web, and the end of the old web, and arranged in the width direction of the old web. A suction device having a suction surface, an adhesive tape in which a non-adhesive surface is sucked to the suction surface, an adhesive surface is exposed on a terminal end side of the old web, and a tip portion protrudes from the suction surface; A rotatable pressing roll that presses the adhesive surface of the protruding tip of the adhesive tape against the web running on the guide roll; and (1) the terminal end of the old web passes through the guide roll. Before, the adhesive surface of the tip of the adhesive tape is pressed and pasted to the old web by the pressing roll, and the suction of the adhesive tape by the suction device is stopped, 2) and said pressing of the pressing roll said through said end of the old web by continued until the new web, control part for fixing in the adhesive tape the old web tail to the new web, wherein A rotation member that rotates the suction device that has sucked the adhesive tape and the pressing roll from a standby position to a tape application position, and the control unit is configured such that the end portion of the old web is the guide roll. The tape attaching device rotates the suction device and the pressing roll from the standby position to the tape attaching position by the turning member before passing through the tape.

  According to the invention, the tail of the old web can be fixed to the new web by means of adhesive tape.

It is a side view of the standby position of the tape sticking apparatus which shows one Embodiment of this invention. It is a front view of the standby position of a tape sticking apparatus. It is a side view of the tape sticking position (1) of a tape sticking apparatus. It is a front view of the tape sticking position (1) of a tape sticking apparatus. It is a side view of the tape sticking position (2) of a tape sticking apparatus. It is a front view of the tape sticking position (2) of a tape sticking apparatus. It is a perspective view of the state which connected the old web and the new web. It is a block diagram of a tape sticking apparatus. It is explanatory drawing for turning the tail of an old web upside down.

  Hereinafter, a tape applicator 10 according to an embodiment of the present invention will be described with reference to FIGS.

  Examples of the web W in the present embodiment include paper, film, cloth (for example, woven cloth), metal foil, metal net, and the like, specifically, an industrial double-sided adhesive tape, a battery material, and the like.

  As shown in Patent Documents 1 to 3, the long web W is unwound from the unwinding device, and when unwound, the end portion of the old web W1 wound around the old core and the new winding The starting end of a new web W2 wound around the core is fixed by the double-sided adhesive tape 11, and then the old web W1 is cut by a cutter. As a result, the new web W2 can be overlapped and fixed on the old web W1, but the position from the position fixed by the double-sided adhesive tape 11 to the end of the old web W1 is not fixed to the new web W2. Hereinafter, this unfixed portion of the old web W1 is referred to as “tail T”. In the present specification, the state in which the old web W1 and the new web W2 are connected is simply referred to as “web W”.

  The web W in which the old web W1 and the new web W2 are connected travels at a traveling speed of 5 to 80 m / min, for example, and after the coating liquid is applied by the coating apparatus, the coating liquid is dried by the heat treatment apparatus. However, as explained in “Problems to be Solved”, when the tail T is hung from the new web W2, the coating liquid adheres or flutters inside the heat treatment apparatus. The tape applicator 10 of the form is arranged in a process after the unwinding apparatus and in a process before the coating apparatus, and is intended to fix the tail T to the new web W2 with the adhesive tape 12. To do.

(1) Structure of tape sticking device 10 First, the structure of the tape sticking device 10 will be described with reference to FIGS. 1 and 2. FIG. 1 is a side view of the tape applicator 10 at a standby position, and FIG. 2 is a front view of the same. The “standby position” is a position when the tape applying apparatus 10 does not attach the adhesive tape 12 to the web W. The “tape attaching position” for attaching the adhesive tape 12 to the web W from this standby position. Move to.

  The tape applicator 10 includes a guide roll 14, a pair of left and right rotating members 16, 16, a suction device 28, a pressing roll 32, and a blocking plate 42.

The guide roll 14 reverses the top and bottom of the web W to which the old web W1 and the new web W2 that are running horizontally are connected. The guide roll 14 has a horizontal rotation axis and is formed of a metal roll. The rotating shaft is rotatably supported by a pair of left and right support legs (not shown) of the tape applicator 10. The pair of left and right rotating members 16, 16 are disposed below the guide roll 14 and are described above. It is rotatably supported by a pair of left and right support legs (not shown). The pair of left and right rotating members 16 have a first support arm 18, a second support arm 20, and a third support arm 22 projecting in three directions around the rotation shaft 24, and rotate around the rotation shaft 24. Yes, it is rotated by the rotary actuator 26.

  A suction device (suction box) 28 is provided between the pair of left and right first support arms 18 and 18. The suction device 28 is a rectangular parallelepiped, and the outer surface forms a suction surface 30. The suction surface 30 is formed slightly larger than the rectangular parallelepiped suction device 28, protrudes outward and downward in FIG. 1, and has a triangular beak shape when the suction device 28 is viewed from the side. A plurality of suction holes 40 are opened in the suction surface 30 of the suction device 28 as shown in FIG. However, the suction hole 40 is opened only at a place where the non-adhesive surface of the adhesive tape 12 is sucked, and when the three adhesive tapes 12 are sucked, as shown in FIG. The center is open on both the left and right sides.

  A pressing roll 32 is disposed between the pair of left and right second support arms 20 and 20 so as to be adjacent to the suction device 28. That is, each of the second support arms 20 is provided with a holding portion 34 made of an air cylinder, and a pressing roll 32 is provided at the tip of the holding portion 34 so as to be freely rotatable. The pressing roll 32 has three cylindrical sponge rolls 38 attached to a metal core 36 that is rotatably attached to the tip of the air cylinder. As shown in FIG. 2, the three sponge rolls 38 are respectively provided at the center portion of the core 36 and at the left and right side portions. These positions correspond to positions where the adhesive tape 12 is attached.

  The pair of left and right third support arms 22 serves as a balancer for the first support arm 18 and the second support arm 20.

  The blocking plate 42 is horizontally disposed between the rotating member 16 and the guide roll 14, that is, below the end portion of the old web W <b> 1 that runs by the guide roll 14.

(2) Electrical configuration of tape applicator 10 Next, the electrical configuration of the tape applicator 10 will be described based on the block diagram of FIG.

  A suction unit 46, a traveling unit 48, a rotating unit 50, and a pressing unit 52 are connected to the control unit 44 formed of a computer.

  The suction unit 46 sucks air with a compressor, and sucks the adhesive tape 12 with the suction surface 30 of the suction device 28.

  The traveling unit 48 includes a motor control unit and a connection tracking unit. Based on a speed signal from a motor control unit of a motor that causes the web W to travel at a predetermined traveling speed, the connection tracking unit is a terminal unit of the old web W1. The position is always tracked, and a predetermined time before the end of the old web W1 passes the guide roll 14 (for example, 1-2 seconds before) or a predetermined distance (for example, 1.0-10.0 cm before). A detection signal is output to the control unit 44. As a method for the connection tracking unit of the traveling unit 48 to track the end portion of the old web W1, the traveling distance is calculated from the traveling speed of the web W and detected before a predetermined time or a predetermined distance before passing the guide roll 14. Output a signal.

  The rotating unit 50 rotates the pair of left and right rotating members 16 and 16 from the standby position to the tape applying position by the rotary actuator 26 according to an instruction from the control unit 44.

  The pressing unit 52 drives the holding unit 34 made of an air cylinder according to an instruction from the control unit 44 and presses the pressing roll 32 against the guide roll 14.

(3) Operation of Tape Pasting Device 10 Next, the operation of the tape pasting device 10 will be described in four stages.

(3-1) First Stage First, the first stage (standby position) of the operation of the tape applicator 10 will be described with reference to FIGS. 1, 2, and 7. FIG.

  In the first stage, as shown in FIG. 1, the first support arm 18 of the rotating member 16 is in the horizontal direction and the second support arm 20 is in the vertical direction at the standby position. Thereby, the suction surface 30 of the suction device 28 is in a vertical state, and suction is started in this vertical state. Then, as shown in FIG. 2, the operator sucks the non-adhesive surface of the adhesive tape 12 on the left side, the center, and the right side of the suction surface 30. In this case, as shown in FIG. 1, the tips of the three adhesive tapes 12 are sucked in a state protruding from the beak portion of the suction surface 30, and the three adhesive tapes are bonded as shown in FIG. The front end portion of the tape 12 hangs down below the tangential position S in the vertical direction of the pressing roll 32. The adhesive tape 12 attached to the suction device 28 is cut in advance to a length that allows the tail T of the old web W1 to be attached to the new web W2, as shown in FIG.

(3-2) Second Stage Next, a second stage (tape attaching position (1)) of the operation of the tape attaching apparatus 10 will be described with reference to FIGS.

  In the second stage, the control unit 44 rotates the pair of left and right rotating members 16 and 16 counterclockwise from the standby position to the tape attaching position using the rotary actuator 26. Then, as shown in FIG. 3, the suction surface 30 of the suction device 28 rotates from the vertical state to the horizontal state and is positioned below the blocking plate 42, and the pressing roll 32 is positioned below the guide roll 14. . At this time, as shown in FIGS. 3 and 4, the adhesive tape 12 is sucked by the suction surface 30, and the non-adhesive surface at the tip of the adhesive tape 12 is placed on the upper portion of the pressing roll 32. Become.

(3-3) Third Stage Next, the third stage (tape attaching position (2)) of the operation of the tape attaching apparatus 10 will be described with reference to FIGS. 5, 6, and 7. FIG.

  In the third stage, when a detection signal is input from the traveling unit 48 to the control unit 44, as shown in FIG. 5, the tail T of the old web W1 is suspended from the new web W2 and is placed on the blocking plate 42. Therefore, when the control unit 44 causes the holding unit (air cylinder) 34 to protrude by the pressing unit 52, the adhesive surface of the adhesive tape 12 is pasted from the vicinity of the terminal end of the old web W1 moving the guide roll 14, It is pasted up to the new web W2 beyond the end of the tail T. Accordingly, as shown in FIG. 7, the tail T of the old web W1 is fixed to the new web W2. The control unit 44 stops the suction of the adhesive tape 12 by the suction device 28 when the pressing roll 32 is caused to protrude by the holding unit 34.

(3-4) Fourth Stage Next, the fourth stage of the operation of the tape applicator 10 will be described.

  When the application of the adhesive tape 12 is completed, the control unit 44 moves the pressing roll 32 downward by the holding unit 34, and then moves the pair of left and right rotating members 16 and 16 from the tape application position using the rotary actuator 26. Rotate counterclockwise to the standby position. Thereby, the tape applicator 10 can be returned to the standby position.

(4) Effect With the tape attaching device 10 of this embodiment, the tail T of the old web W1 can be attached to the new web W2 with the adhesive tape 12. For this reason, the tail T of the old web W2 does not hang down from the new web W1, and the coating liquid does not adhere at the time of coating or flutters inside the heat treatment apparatus.

  Further, since the pressing roll 32 is formed by the sponge roll 38, when the pressing roll 32 is pressed against the guide roll 14, it deforms together with the adhesive tape 12 in accordance with the outer peripheral surface of the guide roll 14 due to the flexibility of the sponge. Thus, the adhesive surface of the adhesive tape 12 can be completely attached to the old web W1.

  Further, since the rotary member 16 is rotatably supported by the rotary actuator 26, when the pressing roll 32 is pressed against the guide roll 14, the adhesive tape 12 is attached to the old web W1 due to the cushioning property of the rotary actuator 26. be able to.

  Further, since there is the blocking plate 42, the tail T hanging from the old web W1 does not touch the adhesive surface of the adhesive tape 12 sucked by the suction surface 30.

(5) Modification Example In the above embodiment, three adhesive tapes 12 are pasted at predetermined intervals. However, the number is not limited to three, and two or four or more may be pasted. Alternatively, a single tape having a large width may be attached.

  Moreover, in the said embodiment, although the sponge roll 38 was used as the press roll 32, a rubber roll may be sufficient.

  Moreover, in the said embodiment, although the rotary actuator 26 was used as a means to rotate the rotation member 16, it may replace with this and a motor may be sufficient.

  Moreover, in the said embodiment, although the suction hole 40 was opened only in the position which affixes the adhesive tape 12, in the suction surface 30 of the suction device 28, it may replace with this and may open the suction hole 40 to the whole surface.

  Further, in the above embodiment, the suction device 28 is rotated from the vertical state to the horizontal state, and the suction device 28 is set to the tape attachment position, but instead, the suction surface 30 of the suction device 28 is in the vertical state. Alternatively, the adhesive tape 12 may be attached.

  In the above embodiment, as shown in FIG. 2, the sponge rolls 38 are provided at the center 36 and the left and right sides of the core 36, but instead, one sponge is provided over the entire width of the core 36. A roll 38 may be provided.

  Further, in the above embodiment, the tail T of the old web W1 has traveled to the tape applicator 10 while being hung on the new web W2. The tail T of the web W1 may be located. At this time, as shown in FIG. 9, after the old web W1 and the new web W2 are turned upside down by the reverse roll 54, the tape attaching device 10 of this embodiment is arranged.

  In the above embodiment, the pressing roll 32 and the suction device 28 are rotated by the rotating member 16 and moved from the standby position to the tape applying position. Instead, the pressing roll 32 and the suction device 28 are integrated. When the adhesive tape 12 is to be applied, the pressing roll 32 and the suction device 28 are integrally attached by an air cylinder and attached to the tape. It may be raised to a position.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Tape sticking apparatus, 12 ... Adhesive tape 12, 14 ... Guide roll, 16 ... Rotating member, 18 ... 1st support arm, 20 ... 2nd support arm, 24・ ・ ・ Rotary shaft, 26 ... Rotary actuator, 28 ... Suction device, 30 ... Suction surface, 32 ... Pressing roll, 34 ... Holding part, 36 ... Core, 38 ... Sponge roll, 40 ... suction hole, 42 ... blocking plate, 44 ... control unit

Claims (10)

A guide roll for running a web in which the start end of a new web is overlapped in the vicinity of the end of the old web; and
A suction device having a suction surface arranged on the end portion side of the old web and in the width direction of the old web;
An adhesive tape in which a non-adhesive surface is sucked into the suction surface and an adhesive surface is exposed on a terminal end side of the old web, and a tip portion protrudes from the suction surface;
A rotatable pressing roll that presses the adhesive surface of the protruding tip of the adhesive tape against the web running on the guide roll;
(1) Before the end portion of the old web passes through the guide roll, the adhesive roll at the tip end portion of the adhesive tape is pressed and pasted to the old web by the pressing roll; The suction of the adhesive tape by the suction device is stopped, and (2) the pressing of the pressing roll is continued until the end portion of the old web passes through to become the new web, and the tail of the old web is moved to the new web. A control unit fixed to the web with the adhesive tape;
A rotating member that rotates the suction device that sucked the adhesive tape and the pressing roll from a standby position to a tape attaching position;
Have
The control unit rotates the suction device and the pressing roll from the standby position to the tape application position by the rotating member until the end portion of the old web passes through the guide roll.
Tape applicator. The adhesive tape is previously cut to a predetermined length and sucked to the suction surface of the suction device.
The tape affixing device according to claim 1 . A blocking plate is arranged between the end portion side of the old web and the suction surface,
The tape affixing device according to claim 1 . The pressing roll is a sponge roll.
The tape affixing device according to claim 1 . The rotating member is rotated by a rotary actuator.
The tape affixing device according to claim 1 . The guide roll is a metal roll.
The tape affixing device according to claim 1 . The adhesive tape is sucked and fixed to the suction surface of the suction device at the standby position.
The tape affixing device according to claim 2 . The adhesive tape is sucked by arranging a plurality of sheets at predetermined intervals on the suction surface of the suction device.
The tape affixing device according to claim 2 . The seam between the starting end of the new web and the old web is fixed with a double-sided adhesive tape,
The length of the tail of the old web is set to a predetermined length from the position of the double-sided adhesive tape,
The tape affixing device according to claim 1 . A connection tracking unit that tracks the position of the end of the old web traveling;
The connection tracking unit outputs a detection signal to the control unit, a predetermined time before the end portion of the old web passes through the guide roll, or a predetermined distance before,
The control unit presses the adhesive tape with the pressing roll when the detection signal is input.
The tape affixing device according to claim 1 .

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