JPH0891327A - Spot taping device - Google Patents

Abstract

PURPOSE: To provide a spot taping device which efficiently performs an affixing work, and in addition, firmly affixes the tip of an adhesive tape on the sheet end edge of a work at a good precision, and performs the affixing favorably. CONSTITUTION: A spot taping device is equipped with a rotation-driving mechanism 12 which rotates a work 11 being wound into a roll-form, affixing mechanism 14 which pulls out an adhesive tape 13 and affixes the tip of the adhesive tape 13 on the sheet end edge 11a of the work 11, cutting mechanism 15 which has a cutting blade and cuts the affixed adhesive tape 13 behind the affixed part, and positioning means 18 which advances/retracts an attaching frame 23 on which these mechanisms are attached. The attaching frame 23 is equipped with a detecting means 63 which detects the sheet end edge 11a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spot taping device for preventing unrolling of a sheet by sticking an adhesive tape to the edge of the sheet while rotating a rolled sheet-like work. .

[0002]

2. Description of the Related Art Conventionally, as a method of sticking an adhesive tape to a sheet edge portion of a rolled sheet-like work so as to prevent unrolling of the sheet, sticking work is manually performed. It was being appreciated. This is to transfer a work wound in a roll from a winding device that winds a sheet in a roll to a predetermined device, for example, a device in which the work is placed on a roller and can be freely rotated. On that device,
Alternatively, it is a method in which an adhesive tape is manually attached to the sheet edge portion of the work on the winding device.

[0003]

However, the above-mentioned conventional spot taping method has problems that it is inefficient and labor-intensive because of manual labor, and furthermore, the bonding strength and the bonding position vary. There was a problem that the quality was poor. The present invention has been made in view of the above circumstances, and is spot taping capable of efficiently performing the attaching work and accurately and firmly attaching the tip portion of the adhesive tape to the sheet edge portion of the work. The purpose is to provide a device.

[0004]

A method according to the above-mentioned object.
The spot taping device described is a rotary drive mechanism for rotating a rolled sheet-like work in a winding direction, and a roll-shaped adhesive tape is drawn out to the sheet end edge portion of the work and the tip thereof is drawn. An adhering mechanism for adhering, a cutting mechanism having a cutting blade for cutting the adhered adhesive tape at its rear part, an attachment frame to which the adhering mechanism and the cutting mechanism are attached, and a forward / backward movement of the attachment frame. A spot taping device comprising tilting means for positioning the attachment mechanism at a predetermined position on the work, wherein the mounting frame comprises detection means for detecting a sheet edge portion of the work. The attaching mechanism includes a main roller that elastically abuts a front portion of the work in a rotation direction, and a front side of the main roller, and the sticking mechanism attaches to the work at the time of attaching. Has a secondary roller, and the holding roller of the adhesive tape provided in the front of the sub roller for pressing the front portion of the tape, the cutting blade is disposed at an intermediate position of said main roller and the secondary roller. A spot taping device according to a second aspect of the present invention is the spot taping device according to the first aspect, wherein the detection unit is a laser sensor that detects a step of the sheet. Claim 3
The described spot taping device is the spot taping device according to claim 1 or 2, wherein the roll-shaped adhesive tape is provided with slack prevention means. The spot taping device according to claim 4 is the spot taping device according to any one of claims 1 to 3, wherein the mounting frame includes an edge portion of the rotating workpiece and the workpiece. A nozzle for blowing air is provided between and.

[0005]

In the spot taping device according to any one of claims 1 to 4, the mounting frame is moved forward and backward and tilted to dispose the roll-wound work at a predetermined position, and the main roller elastically abuts the front part in the rotation direction. The outer peripheral surface of the rolled sheet-like work rotating in the winding direction is detected by the rotation drive mechanism, and the attachment mechanism and the cutting mechanism are positioned. Then, the sheet edge portion of the work rotating in the winding direction is projected in the radial direction to form a step between the work and the tape wound in the lower layer, and the step is detected by the detecting means to detect the sheet end. Detects that the edge is at the attachment angle. In response to a signal from the detection means, the tip of the adhesive tape that has been unwound and pulled out in advance is pressed by the auxiliary roller that constitutes the sticking mechanism to stick the work to the front side in the rotational direction of the sheet edge, and Since the adhesive tape is pulled out by the rotation of the work, the adhesive tape covers the edge portion of the sheet. When the proper work rotation position is reached, the adhesive tape pulled out by operating the cutting mechanism is cut, and the spot taping by the adhesive tape is completed. And
The cut end of the cut adhesive tape is held by a holding roller provided in front of the sub roller so as not to drop. Particularly, in the spot taping device according to the second aspect of the present invention, the laser sensor accurately detects the step at the edge portion of the sheet, and the adhesive tape is accurately attached to the correct position to firmly hold the attaching force. To be done. In the spot taping device according to the third aspect, the adhesive tape is prevented from being loosened, and the adhesive tape is cut and attached well. Further, in the spot taping device according to claim 4, since the mounting frame is provided with a nozzle for blowing air between the edge portion of the rotating work and the work, the sheet-like shape of the work is thereby provided. The edge is lifted, the step for detecting the edge of the sheet is increased, and the measurement accuracy is improved.

[0006]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. Here, FIG. 1 shows a spot according to an embodiment of the present invention.
2 is an enlarged side view of the same part, FIG. 3 is an enlarged front view of the same part, FIG. 4 (A) is a perspective view of a roll-shaped work, and FIG. 4 (B) is the same side view. FIG. 5 is a flowchart showing an operating procedure of the spot taping device according to the embodiment of the present invention.

As shown in FIG. 1, a spot taping apparatus 10 according to an embodiment of the present invention includes a rotary drive mechanism 12 for rotating a rolled sheet-like work 11 in a winding direction A, and the work 11. Sheet edge portion 11a (see FIG.
And a sticking mechanism 14 for sticking the adhesive tape 13 to
Cutting mechanism 15 for cutting the rear end of the adhesive tape 13
A slack prevention mechanism 17 that prevents the pressure-sensitive adhesive tape 13 from loosening by pressing the pressure-sensitive adhesive tape roll 16 wound in a roll to prevent the pressure-sensitive adhesive tape roll 16 from rotating by inertia; Adhesive tape roll 1
6. It has a positioning means 18 for advancing and retracting and tilting the adhering mechanism 14 and the cutting mechanism 15 to position them at a predetermined position. These will be described in detail below.

As shown in FIG. 1, the rotary drive mechanism 12 is a device for winding a sheet while rotating the work 11 in the winding direction A, and of the pair of rollers 19 on which the work 11 is placed. Pulleys 21 respectively attached to the end portion and the output shaft of the geared motor 20, and the respective pulleys 2
1 is provided with a belt 22 and the pair of rollers 19 is rotated clockwise by the rotation of the geared motor 20,
The mounted work 11 is rotated in the A direction.

In the attaching mechanism 14, as shown in FIGS. 1 and 2, a main lever 25 rotatably provided via a pin 24 to a mounting frame 23, which is a movable frame of the positioning means 18, is provided. The frame 25 includes a bracket 26 protruding from the lever 25 and a sub-lever 27 rotatably connected to the bracket 26 via a pin 32. And, the main lever 25 has a pin 2 at the base end.
A mounting frame 23 is rotatably supported by a mounting frame 23 via a shaft 4, and a front portion is bent downward and a main roller 28 is rotatably provided. In the upper part of the base end side of the main lever 25,
The bracket 29 is projected and the pin 29 is attached to the bracket 29.
A connecting rod 29b is attached via a, the other end of the connecting rod 29b is loosely fitted to a bracket 30 fixed to the mounting frame 23, an adjusting screw 30a is attached to the other end, and the base end of the connecting rod 29b is further attached. A compression coil spring 31 is provided between the pedestal 29c provided on the bracket and the bracket 30. As a result, the main roller 28
Touches the work 11 elastically.

On the other hand, a sub-roller 33 is rotatably provided at the tip of a sub-lever 27 which is rotatably attached to a bracket 26 on the base end side of the main lever 25. In the vicinity, a small-diameter holding roller 34 that comes into contact with and guides the adhesive surface of the adhesive tape 13 is rotatably provided.

In addition, in the lower portion on the base end side of the auxiliary lever 27,
A protrusion 27a is formed so as to protrude from the main body of the sub-lever 27, and the guide roller 35 is provided in the middle of the protrusion 27a.
Are provided rotatably. Further, at the central portion of the sub-lever 27, a mounting member 37a at the intermediate portion of the main lever 25 is provided on the opposite side of the protrusion 27a via a pin 36.
A sub-lever rotating cylinder 37 attached to the sub-roller 33 is connected to rotate the sub-roller 33 (that is,
The adhesive surface of the adhesive tape 13 is pressed against the work 11 (moving up and down in FIG. 2).

Regarding the positional relationship between the main roller 28, the sub roller 33 and the holding roller 34, the main roller 28
Before this, that is, on the side opposite to the rotation direction of the work 11, the sub roller 33 is arranged, and the holding roller 34 is arranged at a position corresponding to the sub roller 33.

The cutting mechanism 15 has an arm 39 rotatably attached to a pin 38 at an intermediate portion of the main lever 25.
a and a cutting blade 39 provided at the tip of the arm 39a. The cutting blade 39 is formed in a sickle shape as a whole, the arm 39a is at the position of the back of the sub roller 33 (that is, the upper portion), and the cutting blade 39 is at an intermediate portion between the main roller 28 and the sub roller 33. It is located at and is designed to move up and down. One end of a cutting blade rotating cylinder 41 is rotatably connected to the intermediate portion of the arm 39a via a pin 40. The other end of the cutting blade rotating cylinder 41 is attached to the main lever 25 via an attachment member 41a.

The adhesive tape roll 16 is rotatably mounted on the tip of a bracket 42 fixed to the mounting frame 23 via a pin 43. The adhesive tape 13 having its tip pulled out from the adhesive tape roll 16 has the guide roller 35, the holding roller 34,
It is stretched around the sub roller 33 and the main roller 28.
At this time, the holding roller 34 is the only roller that comes into contact with the adhesive side of the adhesive tape 13, and the holding roller 34 is made of a non-adhesive material such as Teflon. In addition,
The maximum width of the adhesive tape 13 is 50 mm, usually 15 m
Although the width of the adhesive tape 13 is about m, the width of the adhesive tape 13 is an element that affects the adhesive strength together with the adhesive length, the type of adhesive, the type of work, etc. Select as appropriate.

The slack prevention mechanism 17 is composed of a lever 44, a tension coil spring 45 and the like. The base end side of the lever 44 has a pin 4 fixed to the mounting frame 23.
The shaft 6 is rotatably supported at 6, and the tip side is formed in a shape bent at a right angle, and a pressing roller 47 is rotatably provided. The tension coil spring 45 is interposed between an engaging portion 48 fixed to the intermediate portion of the lever 44 and an engaging portion 49 fixed to the bracket 42 side. The adhesive tape roll 16 is elastically pressed by the pressing roller 47 so as not to rotate excessively by inertia or easily rotate in the reverse direction.
The slack prevention mechanism 17 also functions to prevent the adhesive tape 13 from coming off the adhesive tape roll 16.

As shown in FIG. 1, the positioning mechanism 18 includes the slack prevention mechanism 17, the adhesive tape roll 16,
A mounting frame 23 to which the pasting mechanism 14 and the cutting mechanism 15 are mounted, a fixed frame 52 that mounts the mounting frame 23 so as to be able to move forward and backward, a ball screw 50 that connects the fixed frame 52 and the mounting frame 23, and a ball screw 50. It has a motor 51 for rotating and a support frame F for tiltably supporting the fixed frame 52.

That is, linear guides 54 are provided on both sides of the fixed frame 52, and four guide bases 56 that move along the linear guides 54 are provided on the mounting frame 23. A nut 55 that is screwed into the ball screw 50 is provided on the mounting frame 23, and the motor 51 is rotated to move the mounting frame 23 back and forth on the fixed frame 52.

The diameter of the work 11 is approximately 500 m.
Since it varies from m to 1500 mm, it is necessary to move the attaching mechanism 14 and the like to set it at an appropriate position, that is, a predetermined position. Therefore, a proximity switch 57 for fixedly moving the mounting frame 23 forward along the linear guide 54 and stopping it at a predetermined position is fixed at a position near the bracket 30 on the mounting frame 23. Then, the metal fitting 58 detected by the proximity switch 57 is attached to the connecting rod 29b, and the main roller 28 is attached to the workpiece 11.
Is detected and the connecting rod 29b retracts, the metal fitting 58
Is detected by the proximity switch 57, and thereby the proper position of the mounting frame 23 is detected. In this embodiment, the moving distance of the sticking mechanism 14, that is, the stroke S, is configured to be about 1000 mm. In the figure, 11b and 11c are examples of works having different roll diameters.

Further, the fixed frame 52 is provided with a tilting frame 59 on one side thereof. And the tilting frame 5
An arcuate elongated hole 60 for allowing the tilting frame 59 to freely tilt is provided in the projecting portion of 9. The elongated hole 60 is formed in a shape having an arc-shaped inner edge and an outer edge centered on a pin 61 provided on the upper portion of the support frame F.
It is possible to rotate around 1. And
The positioning mechanism 18 is set to a predetermined inclination angle, that is, an inclination angle corresponding to the diameter of the work 11 so that the attaching mechanism 14 can appropriately press the work 11, and the support frame F is supported by the four bolts 62. It can be fixed to. It is also possible to attach a drive source for rotation between the tilting frame 59 and the support frame F and automatically change the angle of the attachment frame 23.

A laser sensor 63 for detecting the sheet edge portion 11a of the work 11 is provided on the mounting frame 23.
However, it is fixed via a bracket. The laser sensor 63 measures the distance to the work 11, detects the step H (see FIG. 4B) of the sheet edge 11a wound in a roll shape, and detects the position of the sheet edge 11a. Is something that is sensed. A control device (not shown) is provided to control the entire system.

An air nozzle 65 is attached to the attachment frame 23 as shown in FIGS. The air nozzle 65 has a base end provided at the tip of the protruding portion 27a, and air is introduced between the sheet end edge portion 11a and the wound work 11 to lift the sheet end edge portion 11a. The step H detected by the laser sensor 63 is increased. This is because the sheet edge 11a of the work 11 moves up and down by the thickness of the sheet by the lower roller 19, but if this is not detected by the laser sensor 63, the sheet 11 around the sheet edge 11a is wound. If they are in close contact with each other, the detection will not be performed in the same manner. Therefore, the level difference for detecting the sheet edge portion 11a by the laser sensor 63 is further increased, and the workpiece is caused by the contact between the sheet edge portion 11a and the lower roller 19. 1
The vertical movement of 1 can be prevented from being detected. Further, when the sheet is thin, it becomes difficult for the laser sensor 63 to detect it, but the detection is facilitated by lifting the sheet with air as described above. In addition, 66 shows an air pipe.

Next, referring to FIG. 5, the operation of the spot taping apparatus according to one embodiment of the present invention will be described. This operation is stored in a programmable controller (or computer) not shown, and the overall control is performed. I am trying. Before starting the attachment work, the geared motor 20
Is in a stopped state (step S1). At this time, the adhesive tape 13 is assumed to be pulled out to the position of the cutting blade 39. Next, switch to automatic operation (step S
2) The normal rotation of the geared motor 20 is started (step S
3) The work 11 is rotated in the A direction and the mounting frame 23 advance / retreat motor 51 is started (step S4). The motor 51 rotates normally, the mounting frame 23 approaches the work 11, the proximity switch 57 detects the metal fitting 58 (step S5), and the motor 51 is stopped (step S6).

At this time, the air is blown from the air nozzle 65, the geared motor 20 continues to rotate, the roll surface of the work 11 is detected by the laser sensor 63, and the step H of the sheet edge portion 11a is detected. When it is detected (step S7), the timer Td is activated. This is because the laser sensor 63 detects the sheet edge portion 11a, and further rotates the work 11 to feed the sheet edge portion 11a to an appropriate position.

After the timer Td has timed out (step S
8) The sub-lever rotating cylinder 37 extends (step S9), the sub-lever 27 rotates, and the sub-roller 33 attached to the leading end causes the tip of the adhesive tape 13 to move slightly ahead of the sheet edge 11a. It is pressed against the work on the side. This time is measured by the timer Tb (step S1
0), when the time is up, the auxiliary lever rotation cylinder 3
7 contracts and the sub roller 33 returns to the original position. (Step S11). In this state, the timer Tc is counted, the work 11 is rotated slightly, and the time is up when the tip of the adhesive tape 13 is near the main roller 28 (step S1).
2) Extend the cutting blade rotating cylinder 41 to cut the cutting blade 3
The adhesive tape 13 is cut by 9 (step S1)
3). Immediately thereafter, the cutting blade rotating cylinder 41 is contracted to put the cutting blade 39 into the original position (step S1).
4).

When the work 11 is further rotated, the adhesive tape 13a to be cut is pushed by the main roller 28 and the sheet edge portion 11a is joined, so this time is counted by the timer Ta (step S1
5), stop the geared motor 20 (step S1)
6). Next, the motor 51 is rotated in the reverse direction to raise the mounting frame 23 (step S17), and the proximity switch 5
When the motor 7 is turned off (step S18), the motor 51
Is stopped (step S19). As a result, the main roller 28 separates from the work 11, so that the work 11 can be moved. In addition, as shown in FIG. 4, when a plurality of positions of the sheet edge portion 11a are stopped by the adhesive tape 13a, the work 11 is laterally fed, or the spot taping device 10 is laterally fed or plural units are installed. By doing.

In the above embodiment, the cylinder is used to rotate the auxiliary lever 27 and the cutting arm 39a.
It can also be driven by a solenoid or a small motor.

[0027]

As is apparent from the above description, the spot taping device according to the first to fourth aspects of the invention has the following advantages.
It is possible to cut and attach the pressure-sensitive adhesive tape to the correct position of the edge of the sheet of the rolled work while surely pressing the front end and the entire surface of the work. Moreover, all of these steps are automated except for the manual work of tilting the tilting frame to set the proper posture, so that the work efficiency is improved and the sticking performance is stable.

[Brief description of drawings]

FIG. 1 is an overall side view of a spot taping device according to an embodiment of the present invention.

FIG. 2 is an enlarged side view of the same portion.

FIG. 3 is an enlarged front view of the same portion.

FIG. 4A is a perspective view of a roll-shaped work. (B) It is a side view.

FIG. 5 is a flowchart showing an operating procedure of the spot taping device according to the embodiment of the present invention.

[Explanation of symbols]

 10 Spot Taping Device 11 Work 11a Sheet Edge Part 11b Work 11c Work 12 Rotation Drive Mechanism 13 Adhesive Tape 13a Adhesive Tape 14 Adhesion Mechanism 15 Cutting Mechanism 16 Adhesion Tape Roll 17 Loosening Prevention Mechanism 18 Positioning Means 19 Roller 20 Geared Motor 21 Pulley 22 Belt 23 Mounting Frame 24 Pin 25 Main Lever 26 Bracket 27 Sub Lever 27a Projection 28 Main Roller 29 Bracket 29a Pin 29b Connecting Rod 29c Pedestal 30 Bracket 30a Adjustment Screw 31 Compression Coil Spring 32 Pin 33 Sub Roller 34 Holding Roller 35 Guide roller 36 pin 37 Cylinder for rotating sub lever 37a Mounting member 38 pin 39 Cutting blade 39a Arm 40 pin 41 Cutting blade rotating cylinder 41a Bracket member 42 bracket 43 pin 44 lever 45 tension coil spring 46 pin 47 pressing roller 48 engaging portion 49 engaging portion 50 ball screw 51 motor 52 fixed frame 54 linear guide 55 nut 56 guide base 57 proximity switch 58 metal fitting 59 tilting frame 60 slot 61 pin 62 bolt 63 laser sensor (detection means) 65 air nozzle 66 air piping A winding direction F support frame H step

Claims (4)

[Claims] 1. A rotary drive mechanism for rotating a rolled sheet-like work in a winding direction, and pulling out a roll-shaped adhesive tape from a sheet end edge portion of the work and pasting the leading end thereof. A sticking mechanism, a cutting mechanism that has a cutting blade and cuts the stuck adhesive tape at the rear part thereof, a mounting frame to which the sticking mechanism and the cutting mechanism are attached, and a forward / backward and tiltable mounting frame. A spot taping device comprising positioning means for positioning the attaching mechanism at a predetermined position of the work, wherein the attachment frame comprises detection means for detecting a sheet edge portion of the work, The sticking mechanism is located in front of the main roller that elastically contacts the front part of the work in the rotation direction, and in front of the main roller, and pushes the tip of the adhesive tape against the work during sticking. Secondary roller, and has a holding roller of the adhesive tape provided in the front of the sub roller, the cutting blade, spot taping apparatus characterized in that an intermediate position of said main roller and the sub roller for. 2. The spot taping device according to claim 1, wherein the detection means is a laser sensor that detects a step of the sheet. 3. The spot taping device according to claim 1, wherein the roll-shaped adhesive tape is provided with slack preventing means. 4. The spot according to claim 1, wherein the mounting frame is provided with a nozzle for blowing air between an edge portion of the rotating work and the work. -Taping device.