JP2020059573A - Pressure-sensitive adhesive tape delivering mechanism and pressure-sensitive adhesive tape sticking device using the same - Google Patents

Abstract

To provide a pressure-sensitive adhesive tape delivering mechanism capable of preventing a delivered pressure-sensitive adhesive tape from being deformed, and a pressure-sensitive adhesive tape sticking device using the same.SOLUTION: A pressure-sensitive adhesive tape delivering mechanism 10 includes: a pressure-sensitive adhesive tape support member 20 for rotatably supporting a pressure-sensitive adhesive tape TA wound in a roll shape, a first roll 21 having grooves on a peripheral surface; a second roll 22 having grooves on a peripheral surface; a ring 23 stretched over the grooves of the first roll 21 and the grooves of the second roll 22; and a pressing roll 24 for pressing the pressure-sensitive adhesive tape TA to the first roll 21.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an adhesive tape feeding mechanism and an adhesive tape sticking device using the same.

  In various fields, an adhesive tape having a glue surface on one side is unrolled and made to have a constant length and attached to various adherends. Generally, an adhesive tape in which a mount is attached to the adhesive surface is used for ease of feeding, but an adhesive tape wound in a roll shape without a mount may be used.

  As a method of feeding out the adhesive tape wound in a roll shape without a mount, for example, a roller having a protrusion and a roller having a concave groove are arranged to face each other, and the adhesive tape is inserted between the protrusion and the concave groove. There is a feeding method (Patent Document 1).

JP 05-330723 A

  In the method of Patent Document 1, since the adhesive tape is sandwiched between the protrusion and the groove, the adhesive tape fed out is deformed and the mold enters. When the mold enters the adhesive tape, the adhesive strength of the adhesive tape is reduced.

  The present invention has been made in view of the above matters, and an object of the present invention is to provide an adhesive tape feeding mechanism in which a mold does not enter an adhesive tape to be fed and an adhesive tape sticking device using the same. .

The adhesive tape feeding mechanism according to the first aspect of the present invention is
An adhesive tape support member that rotatably supports the adhesive tape wound into a roll,
A first roll having a groove on its circumferential surface;
A second roll having a groove on its circumferential surface;
A ring hung over the groove of the first roll and the groove of the second roll;
A pressing roll that presses the adhesive tape onto the first roll,
With the adhesive surface of the pressure-sensitive adhesive tape facing the first roll and the ring, the pressure-sensitive adhesive tape is pressed against the first roll by the pressing roll so as to be attached.
The adhesive tape is pulled out from the adhesive tape support member by driving the first roll and the second roll,
The adhesive tape is conveyed from the first roll to the second roll while being attached to the ring while being peeled from the first roll,
Peeling off the adhesive tape from the second roll and feeding it out,
It is characterized by the following.

  Further, it is preferable that a slack prevention guide for preventing slack of the ring is provided inside the ring and between the first roll and the second roll.

An adhesive tape sticking device according to a second aspect of the present invention is
An adhesive tape feeding mechanism according to a first aspect of the present invention;
An adhesive tape placing table that is placed with the adhesive surface of the drawn adhesive tape facing upward,
A cutting device for cutting the adhesive tape to a predetermined length,
A sticking device for sticking the placed adhesive tape to an adherend,
It is characterized by the following.

Further, the pasting device includes an adherend holding member for holding an adherend,
The adhesive tape may be attached to the adherend by relative movement of the adherend holding member and the adhesive tape mounting table.

Further, the adherend holding member is rotatable,
The adhesive tape may be attached while rotating the adherend by rotating the adherend holding member.

An adhesive tape sticking device according to a third aspect of the present invention is
An adhesive tape feeding mechanism according to a first aspect of the present invention;
An adherend mounting table on which the adherend is mounted,
A cutting device for cutting the adhesive tape to a predetermined length,
A sticking roll for sticking the fed-out adhesive tape to the adherend,
The adhesive tape feeding mechanism feeds the adhesive tape above the adherend with the adhesive surface facing upward, and affixes the adhesive tape to the adherend by the attaching roll.
It is characterized by the following.

  In the pressure-sensitive adhesive tape feeding mechanism according to the present invention, since the mold does not enter the pressure-sensitive adhesive tape to be fed, it is possible to suppress the decrease in the adhesive force of the pressure-sensitive adhesive tape.

It is a figure which shows schematic structure of the adhesive tape sticking apparatus of a 1st form. FIG. 2 (A) is a plan view showing a state in which the ring is not wound around the first roll and the second roll, and FIG. 2 (B) is a ring wound around the first roll and the second roll. It is a top view showing a state. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows the state of a ring when the loosening prevention guide is not installed. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 1st form. It is a figure which shows schematic structure of the adhesive tape sticking apparatus of a 2nd form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 2nd form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 2nd form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 2nd form. It is a figure which shows operation | movement of the adhesive tape sticking apparatus of a 2nd form.

  Hereinafter, the adhesive tape sticking apparatus according to the first embodiment will be described with reference to the drawings. As shown in FIG. 1, the adhesive tape sticking device 1 includes an adhesive tape feeding mechanism 10, an adhesive tape mounting table 30, a cutting device 40, a sticking device 50, and a control device 60.

  The adhesive tape feeding mechanism 10 includes an adhesive tape support member 20, a first roll 21, a second roll 22, a ring 23, a pressing roll 24, and a slack prevention guide 25.

  The adhesive tape support member 20 has a glue surface on one surface and supports the adhesive tape TA wound in a roll shape. The adhesive tape support member 20 is configured to be rotatable so that the adhesive tape TA can be pulled out. The rotation of the adhesive tape support member 20 may be free rotation or rotation by a drive source such as a servomotor, and is appropriately set depending on the adhesive tape TA used.

  The first roll 21 is arranged on the adhesive tape support member 20 side. In addition, a pressing roll 24 that can approach and separate from the first roll 21 is arranged. The adhesive tape TA is nipped by the first roll 21 and the pressing roll 24, and the adhesive tape TA supported by the adhesive tape support member 20 is pulled out.

  The second roll 22 is arranged in the traveling direction of the adhesive tape TA. The second roll 22 has a small diameter so that the adhesive tape TA can be easily peeled off from the second roll 22 and the ring 23.

  As shown in FIG. 2 (A), concave grooves 21a and 22a in which the ring 23 is inserted are formed on the peripheral surfaces of the first roll 21 and the second roll 22. Here, three grooves 21a and 22a are formed, respectively. Then, as shown in FIG. 2B, the ring 23 enters the grooves 21a and 22a of the first roll 21 and the second roll 22, and the ring 23 is wound around the first roll 21 and the second roll 22. There is. The numbers of the grooves 21a, 22a and the rings 23 are set according to the width of the adhesive tape TA used and the widths of the first roll 21 and the second roll 22, and may be 2 or less or 4 or more.

  The first roll 21 and the second roll 22 are rotationally driven by a drive source such as a servo motor (not shown). By driving the first roll 21 and the second roll 22, the ring 23, which is wound around, is also synchronized and rotated.

  The ring 23 has flexibility and is made of a material that is less sticky than the peripheral surfaces of the first roll and the second roll. For example, the ring 23 is made of resin such as silicone rubber or fluororubber.

  The adhesive tape mounting table 30 is a table on which the fed-out adhesive tape TA is mounted. The adhesive surface of the adhesive tape TA is placed on the adhesive tape mounting table 30 with the adhesive surface facing upward. The adhesive tape mounting table 30 includes a fixing mechanism (not shown) that fixes the adhesive tape mounted on the adhesive tape mounting table 30 so as not to move. As a fixing mechanism, a known fixing mechanism such as a mechanism having a suction hole in the adhesive tape mounting table 30 and sucking and fixing the mounted adhesive tape TA through the suction hole is adopted. Moreover, the adhesive tape mounting table 30 is configured to be movable in the Y direction.

  The cutting device 40 cuts the fed-out adhesive tape TA into predetermined lengths. Here, the blade 41 projects from the cutting device 40 to cut the adhesive tape TA, and the adhesive tape mounting table 30 is provided with a slit 31 so that the blade 41 does not interfere with it.

  The sticking device 50 is a device that holds the adherend W and sticks the adhesive tape TA mounted on the adhesive tape mounting table 30 onto the adherend W. Here, it is a sticking device for sticking the adhesive tape TA to a columnar or cylindrical adherend W. The sticking device 50 has an adherend holding portion 51 to which a columnar or cylindrical adherend W can be attached. The adherend holding unit 51 is rotatably installed.

  The control device 60 controls the drive of each of the adhesive tape feeding mechanism 10, the adhesive tape mounting table 30, the cutting device 40, the sticking device 50, and the control device 60.

  Next, the operation of feeding out and attaching the adhesive tape TA by the adhesive tape attaching apparatus 1 will be described. The drive of each mechanism described below is executed under the control of the control device 60.

  First, as shown in FIG. 3, the adhesive tape mounting table 30 moves in the + Y direction. Then, as the adhesive tape feeding mechanism 10 descends, the fixing mechanism of the adhesive tape mounting table 30 is driven. As a result, the tip of the adhesive tape TA is fixed to the adhesive tape mounting table 30.

  Then, as shown in FIG. 4, by driving the first roll 21 and the second roll 22, the adhesive tape TA sandwiched between the first roll 21 and the pressing roll 24 is pulled out. The adhesive tape TA attached to the peripheral surface of the first roll 21 is conveyed by the rotation of the first roll 21, is separated from the first roll 21 by being regulated by the ring 23, and is attached to the ring 23 to the second roll. It is transported to 22.

  The adhesive tape TA attached to the ring 21 and conveyed advances to the second roll 22 and is attached to the second roll 22 and then peeled off from the second roll 22 when the ring 23 is folded back by the second roll 22. The adhesive tape TA is delivered to the adhesive tape mounting table 30 with the adhesive surface facing upward.

  In the above operation, the adhesive tape mounting table 30 moves in the -Y direction in synchronization with the moving speed of the adhesive tape TA. As a result, the adhesive tape TA is placed on the adhesive tape mounting table 30 and is fixed to the adhesive tape mounting table 30 by the fixing mechanism.

  If the slack prevention guide 25 is not installed, the adhesive tape TA is less likely to be peeled off from the first roll 21, and the ring 23 may be slack as shown in FIG. 5. When such a situation occurs, the feeding of the adhesive tape TA is not stable, and it becomes impossible to supply the adhesive tape TA of a constant length. In the present embodiment, the slack prevention guide 25 is installed between the first roll 21 and the second roll 22 and on the side of the ring 23 to which the adhesive tape TA is attached. The adhesive tape TA is stably peeled from the sheet 21, the slack of the ring 23 is suppressed, and the adhesive tape TA having a constant length can be supplied.

  Subsequently, as shown in FIG. 6, when the adhesive tape TA having a constant length is fed out from the first roll 21, the driving of the first roll 21, the second roll 22 and the adhesive tape mounting table 30 is stopped.

  Then, as shown in FIG. 7, the cutting device 40 is driven. By the blade 41 protruding from the cutting device 40, the adhesive tape TA is cut and the adhesive tape TA having a certain size is fixed to the adhesive tape mounting table 30.

  Then, as shown in FIG. 8, the adhesive tape mounting table 30 moves toward the sticking device 50 (-Y direction). Further, the adhesive tape feeding mechanism 10 is raised to the original position.

  Then, as shown in FIG. 9, the sticking device 50 descends, and the adherend W is pressed against the tip of the adhesive tape TA. Then, as shown in FIG. 10, the adhesive tape mounting table 30 moves in the + Y direction. By moving the adhesive tape mounting table 30 while the adherend W is pressed against the adhesive tape TA, the adherend holding portion 51 and the adherend W held by the adherend holding portion 51 rotate, and the circumference of the adherend W is reduced. The adhesive tape TA is attached so as to be wound around the surface.

  As shown in FIG. 11, when the entire adhesive tape TA is attached to the peripheral surface of the adherend W, the movement of the adhesive tape mounting table 30 is stopped, and the attachment of the adhesive tape TA to the adherend W is completed. Then, each device returns to the original state, and the adherend W to which the adhesive tape TA is attached is removed from the adherend holding portion 51.

  Then, a new adherend W is attached to the adherend holding unit 51, and the above-described operation is repeated, whereby the adhesive tape TA having a constant size is fed out, and the adhesive tape is attached to the adherend W.

  As described above, in the adhesive tape feeding mechanism 10, since the adhesive tape TA is not sandwiched between the protrusion and the concave groove, there is an advantage that it is possible to prevent the adhesive force of the fed adhesive tape TA from being lowered. As a result, the adhesive tape TA can be stably attached to the adherend W in the step after feeding, and the yield is improved.

  Note that, in the above, an example in which the adhesive tape mounting table 30 moves and the adhesive tape TA is adhered to the adherend W at the time of attachment has been described. Since the adhesive tape TA is attached, the attaching device 50 may be moved, or both the attaching device 50 and the adhesive tape mounting table 30 may be moved.

  The thickness of the ring 23 is preferably smaller than the depth of the grooves 21a and 22a of the first roll 21 and the second roll 22. Since the adhesive tape TA is set so as not to adhere to the ring 23 more easily than the peripheral surfaces of the first roll 21 and the second roll 22, the thickness of the ring 23 has grooves 21a, 22a of the first roll 21 and the second roll 22. This is because the adhesive tape TA is less likely to adhere to the peripheral surfaces of the first roll 21 and the second roll 22 when the depth is larger than the depth, and the feeding of the adhesive tape TA may become unstable.

  Further, the shape of the adherend W is not limited to the cylindrical shape or the cylindrical shape. It may be polygonal or any shape. In the case of a polygonal shape or the like, the raising and lowering of the adherend holding portion 51 may be controlled during the rotation of the adherend holding portion 51 so that the adherend W is pressed against the adhesive tape TA.

  Then, the sticking apparatus which concerns on a 2nd form is demonstrated. In the first form, the adhesive tape TA is drawn out with the adhesive surface facing upward, but in the second form, the adhesive tape TA is drawn out and attached with the adhesive surface facing downward. .

  As shown in FIG. 12, in contrast to the adhesive tape sticking apparatus 1 according to the first embodiment, in the adhesive tape sticking apparatus 2 according to the second embodiment, the adherend mounting table 70 and the sticking apparatus are used instead of the adhesive tape mounting table 30. The difference is that a sticking roll 80 is provided instead of 50, and the other configurations are the same.

  In the adhesive tape feeding mechanism 11 of the adhesive tape sticking device 2, the adhesive tape TA passes above the first roll 21 and the second roll 22. The adhesive surface of the adhesive tape TA faces the first roll 21, the second roll 22, and the ring 23.

  The adherend mounting base 70 is a base on which the adherend W is mounted. Here, the plate-shaped adherend W is mainly used, but the adherend W having various shapes may be used.

  The sticking roll 80 is configured to be able to move up, down, and rotate, and has a function of pressing the adhesive tape TA against the adherend W and sticking it while rotating.

  Next, the feeding and sticking operation of the adhesive tape TA by the sticking device 2 will be described. As shown in FIG. 13, the adhesive tape TA is fed by driving the first roll 21 and the second roll 22. The feeding operation of the adhesive tape TA is the same as the above except that the adhesive tape TA advances above the first roll 21, the second roll 22 and the ring 23.

  When the tip end of the adhesive tape TA reaches the adherend W, the sticking roll 80 descends and presses the tip end of the adhesive tape TA against the adherend W. Then, as shown in FIG. 14, the adherend placement table 70 moves in the −Y direction. The adhesive tape TA is attached to the adherend W by rotating the attaching roll 80 with the movement of the adherend placing table 70.

  After that, as shown in FIG. 15, at a predetermined position, the driving of the adherend mounting table 70, the first roll 21, and the second roll 22 is stopped. Then, the cutting device 40 is driven to cut the adhesive tape TA between the second roll 22 and the sticking roll 80.

  Subsequently, the adherend mounting table 70 is further moved in the −Y direction, so that the entire adhesive tape TA is attached to the adherend W. The adherend to which the adhesive tape TA is attached is removed, another adherend W is attached to the adherend mounting table 70, and the above procedure is repeated. Adhesive tape is attached to the.

DESCRIPTION OF SYMBOLS 1 Adhesive tape attaching device 2 Adhesive tape attaching device 10 Adhesive tape feeding mechanism 11 Adhesive tape feeding mechanism 20 Adhesive tape supporting member 21 1st roll 21a groove 22 2nd roll 22a groove 23 Ring 24 Pressing roll 25 Loosening prevention guide 30 Adhesive tape loading Stand 31 Slit 40 Cutting device 41 Blade 50 Sticking device 51 Adhesion object holding unit 60 Control device 70 Adhesion table 80 Adhesion roll TA Adhesive tape W Adhesion object

The adhesive tape feeding mechanism according to the first aspect of the present invention is
An adhesive tape support member that rotatably supports the adhesive tape wound into a roll,
A first roll having a groove on its circumferential surface;
A second roll having a groove on its circumferential surface;
A ring hung over the groove of the first roll and the groove of the second roll;
A pressing roll for pressing the adhesive tape onto the first roll,
An inner side of the ring, and a slack prevention guide for preventing slack of the ring between the first roll and the second roll ,
The slack prevention guide is installed so as to contact the side of the ring to which the adhesive tape is attached,
With the adhesive surface of the pressure-sensitive adhesive tape facing the first roll and the ring, the pressure-sensitive adhesive tape is pressed against the first roll by the pressing roll so as to be attached.
The adhesive tape is pulled out from the adhesive tape support member by driving the first roll and the second roll,
The adhesive tape is conveyed from the first roll to the second roll while being attached to the ring while being peeled from the first roll,
Peeling off the adhesive tape from the second roll and feeding it out,
It is characterized by the following.

An adhesive tape sticking device according to a third aspect of the present invention is
An adhesive tape feeding mechanism according to a first aspect of the present invention;
An adherend mounting table on which the adherend is mounted,
A cutting device for cutting the adhesive tape to a predetermined length,
A sticking roll for sticking the fed-out adhesive tape to the adherend,
The adhesive tape feeding mechanism feeds the adhesive tape above the adherend with the adhesive surface facing downward, and adheres the adhesive tape to the adherend by the applying roll.
It is characterized by the following.

Claims (6)

An adhesive tape support member that rotatably supports the adhesive tape wound into a roll,
A first roll having a groove on its circumferential surface;
A second roll having a groove on its circumferential surface;
A ring hung over the groove of the first roll and the groove of the second roll;
A pressing roll that presses the adhesive tape onto the first roll,
With the adhesive surface of the pressure-sensitive adhesive tape facing the first roll and the ring, the pressure-sensitive adhesive tape is pressed against the first roll by the pressing roll so as to be attached.
The adhesive tape is pulled out from the adhesive tape support member by driving the first roll and the second roll,
The adhesive tape is conveyed from the first roll to the second roll while being attached to the ring while being peeled from the first roll,
Peeling off the adhesive tape from the second roll and feeding it out,
Adhesive tape feeding mechanism characterized by that. A slack prevention guide that prevents slack of the ring is provided inside the ring and between the first roll and the second roll.
The adhesive tape feeding mechanism according to claim 1, characterized in that. An adhesive tape feeding mechanism according to claim 1 or 2,
An adhesive tape placing table that is placed with the adhesive surface of the drawn adhesive tape facing upward,
A cutting device for cutting the adhesive tape to a predetermined length,
A sticking device for sticking the placed adhesive tape to an adherend,
An adhesive tape sticking device characterized in that The pasting device includes an adherend holding member for holding an adherend,
Affixing the adhesive tape to the adherend by relative movement of the adherend holding member and the adhesive tape mounting table;
The adhesive tape sticking device according to claim 3, wherein The adherend holding member is rotatable,
By rotating the adherend holding member, the adhesive tape is attached while rotating the adherend,
The adhesive tape sticking device according to claim 4, wherein An adhesive tape feeding mechanism according to claim 1 or 2,
An adherend mounting table on which the adherend is mounted,
A cutting device for cutting the adhesive tape to a predetermined length,
A sticking roll for sticking the fed-out adhesive tape to the adherend,
The adhesive tape feeding mechanism feeds the adhesive tape above the adherend with the adhesive surface facing upward, and affixes the adhesive tape to the adherend by the attaching roll.
An adhesive tape sticking device characterized in that

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