JP2602605B2 - Tape sticking device and sticking method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for applying an adhesive tape.

[0002]

2. Description of the Related Art Conventionally, there has been known a tape sticking apparatus in which an adhesive tape is attached to a work with a pressure roller while being pulled out, and the tape is cut when a predetermined amount is attached. For example, Japanese Patent Publication No. 56-43934 or Japanese Patent Publication No. 58-19533 is configured as such a device, and an adhesive tape pulled out from a tape holding roller is guided to a pressure roller via a guide roller. The tape is attached to the work while being pressed by a roller, and a cutting blade for cutting the tape at a predetermined position is provided.

[0003]

However, each of the above-mentioned techniques has a problem in that the guide roller is moved in the running direction of the tape.
Equipment is arranged in the order of roller → cutting blade → pressure roller
Therefore, there is a problem that described next problem arises in the case of particularly thin tape. That is, for example, a relatively hard and narrow tape such as a gum tame does not cause any particular problem, but for example, a film-shaped tape or a wide tape, and a tension is not applied to a film drawn to some extent. If the slack occurs , cut the gap between the cutting blade and the pressure roller.
The free tape is free. Such as film tape
Wide tape is free due to lack of rigidity
From the place where it hangs down first,
It adheres to the work sequentially. As a result, it will wrinkle
You.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tape holding means for holding an adhesive tape, a pressure roller for pressing a drawn portion of the adhesive tape to a work and sticking the same, and a pull-out roller. the tape clamping means for temporarily clamping the adhesive tape, constitute a tape applying device having a tape cutter for cutting the adhesive tape pulled out, the press roll, the tape clamping means
And how to pull out the tape in this order.
And the tape clamp means can be freely moved toward and away from the pressure roller. Further, this tape clamp means can be moved up and down freely. With this apparatus, the drawn-out portion of the adhesive tape was temporarily clamped to advance the pressure roller, and the clamp at the initial position was continued until the pressure roller advanced a predetermined stroke.

[0005]

By providing tape clamping means capable of applying tension to the tape and providing the tape clamping means behind the pressure roller, for example, even a film-shaped tape can be attached with tension applied from the beginning. I can do it. If this tape clamping means is made to be able to approach and separate toward the pressure roller, for example, even when it is applied to a work surface where the initial application width is narrow and the application width gradually increases, it can be applied to some extent. It is possible to clamp the tape at the initial position until the spread width is widened and uniform tension is applied to the entire tape. In other words, the tape clamp is kept at the original position until the pressure roller reaches the position where a predetermined bonding width is obtained by moving forward, so that the tape clamp can be moved toward and away from the pressure roller. In addition, the tape clamp means can be moved up and down so as to be retracted to a position where it does not hinder the sticking operation after the clamp is opened.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a tape sticking apparatus and a tape sticking method according to an embodiment of the present invention. FIG. 1 is a front view of the entire apparatus when the present tape applying apparatus is applied as an automobile coating film protective film applying apparatus, FIG.
FIG. 3 is an enlarged view of a main part in a side view, and FIG. 4 is a front view of FIG.

[0007] In recent years, a protective film may be attached to the surface of a vehicle body to protect a coating film from acid rain or the like during transportation of a painted vehicle in which a painted vehicle is applied to a market.
And such a protective film uses a considerably thin material in order to enhance the shape followability to the vehicle body.Although it is thin, if it covers the entire vehicle body, for example, it can be mounted on a ship or a car carrier by self-propelled. There is a possibility that the field of view may be obstructed, so that it is often stuck to only those parts that really need protection such as hoods and roofs, avoiding windows and the like.

On the other hand, in order to paste a thin protective film while cutting it into a predetermined length according to the shape of a bonnet or the like, it is necessary to prevent wrinkles caused by static electricity or the like. The tape sticking device is configured as a device effective for sticking a thin tape such as a coating film protection film.

That is, as shown in FIGS. 1 and 2, this apparatus is provided with left and right pedestals 1 and 2 provided on both sides of a vehicle body W and extending in the direction of the carrying path of the vehicle body W, and one pedestal 1 Rail 1
a in the direction of the carrying path of the vehicle body W (perpendicular to the plane of FIG. 1).
And a rolling table 4 that can roll in the frame 2 on the other side, and a gate-shaped lapping gate 5 straddling the sliding table 3 and the rolling table 4. Is provided.

On the upper surface of the sliding body 3, a vehicle body W
A servo motor 6 for driving the slide table 3 is provided along the direction of the carrying path, and a pinion 7 provided at the lower end of the output shaft of the servo motor 6 is provided on the gantry 1 and shown in FIG. It is engaged with a rack 8 extending in the direction perpendicular to the paper surface.

In other words, the slide table 3 slides along the gantry 1 by the driving of the servo motor 6, and the rolling table 4 and the lapping gate 5 move together with this slide.

The lapping gate 5 is provided with a lapping head 10 which can be moved up and down.

The lapping head 10 is engaged with a guide rail 5a provided on a support of the lapping gate 5 and is provided with a pair of left and right elevating platforms 11, 11 which can be moved up and down. Outgoing chain connecting part 11a
And a chain 12 is connected to the chain connecting portion 11a.

The chain 12 has a sprocket 13 provided on the lower slide 3 as shown in FIG.
A weight member 16 meshes with a sprocket 14 provided above the support of the wrapping gate 5, one end of which is connected to the balance weight 15, and the other end of which is a slack preventing weight member 16 via a roller 15 a below the balance weight 15.
It is connected to the. Further, a servo motor 17 for driving the lower sprocket 13 is provided on the slide base 3.

As shown in FIG. 1, the rotation shaft 18 of the upper sprocket 14 extends parallel to the transverse beam of the lapping gate 5 to the other column, and the other end of the sprocket 20 is attached to the extended end. Have been. The rolling table 4 is provided with a lower sprocket 21. A chain 22 meshes with the sprockets 20 and 21, and a chain connecting portion (not shown) of the lifting table 11 on the chain 22 is engaged with the chain 22. Are linked.

Therefore, when the sprocket 13 is rotated by the operation of the servomotor 17, the left and right chains 12, 22 are rotated.
Travels around and the lapping head 10 moves up and down.

Next, details of the lapping head 10 will be described with reference to FIGS.

As described above, the lapping head 10 is provided with a pair of left and right elevating platforms 11 and 11.
A pair of left and right side plates 11 as shown in FIG.
b, 11b are provided, and an axis P
A swinging plate 19 having a U-shape in a side view that can swing around is provided, and is swingable by a tension cylinder unit 30 described later. A plurality of rollers whose roller shafts extend in the vehicle width direction are provided between the left and right swing plates 19.

That is, a film roller 23 as a tape holding means is provided on the upper portion of the side plate 11b, and the film roller 23 rotatably holds the wound protective film F, and a pair of upper and lower upper and lower parts is provided below the film. Film pull-out rollers 24 and 25 are provided. The swing axis P of the swing plate 19 is on an extension of the rotation axis of the film roller 23.

Each of the film pull-out rollers 24, 25
Is a driving roller 24 driven to rotate by a motor 26
a, 25a and pressing rollers 24b, 25b which can be advanced and retracted by the cylinder unit 27.
4a, 25a and pressing rollers 24b, 25b sandwich the protective film F and draw it out.

A tension roller 28 is provided underneath. Both ends of the tension roller 28 are rotatably attached to the tip of a cylinder rod of a pair of left and right displacement correcting cylinder units 31 fixed to the left and right swing plates 19, respectively. The rotation axis is the side plate 1 like 24, 25
The structure is different from the form supported by rotation at 1b. That is, when the protective film F is displaced in the width direction, the left and right cylinder units 31 are moved forward and backward to correct the displacement of the roller shaft in the inclination direction.

Further, the above-described tension cylinder unit 3
The tip of the cylinder rod 0 is connected to the lower end of the swing plate 19, and the swing plate 19 swings around the axis P by the operation of the tension cylinder unit 30. Accordingly, the displacement correction cylinder unit 31 and the tension roller 28 attached to the rocking plate 19 also move accordingly, and the tension of the film F is adjusted.

A guide roller 32 and a tension roller 33 are provided below the tension roller 28, and a pair of photoelectric tube sensors 34a and 34b are provided therebetween so that the position of the film F can be detected. Further, below the tension roller 33, the pressure roller 3
5 and the roller shaft of the pressure roller 35 is connected to the side plate 11b.
And rotatably supported.

In other words, the pressure roller 35 is for pressing the drawn film F toward the painted surface of the vehicle body W to attach it. In this apparatus, after the film F is drawn out and adhered to a predetermined length, the film F is automatically cut by a cutting mechanism to be described later. The rotation of the film roller 23 due to the inertial force is stopped by the stopper 36 shown in FIG.

That is, the pressing member 38 is pressed against the side surface of the film roller 23 by the operation of the cylinder unit 37 provided on the stopper 36 to prevent the film F having a predetermined length or more from being pulled out.

At the lower ends of the left and right side plates 11b, a swing plate 41 rotatable around a rotation shaft 40 as shown in FIGS. 3 and 4 is provided, and a swing cylinder unit connected to the swing plate 41. Reference numeral 42 allows the swinging motion about the rotation shaft 40. The swing angle is, for example, about 70 degrees upward and about 45 degrees downward with respect to the rotation shaft 40.

A film clamp / cut mechanism 43 is provided between the left and right swing plates 41, 41.
The film clamp / cut mechanism 43 is slidable back and forth along the rail 41a below the swing plate 41.
3 will be described with reference to FIGS. 6 is an enlarged view of a main part of FIG. 3, FIG. 7 is a partially enlarged view of FIG. 6 as viewed from A, and FIG. 8 is a sectional view taken along line BB of FIG.

A cylinder unit 44 as shown in FIG. 6 is mounted inside the oscillating plate 41, and the rod end of the cylinder unit 44 is connected to a film clamp / cut mechanism 43. The film clamp / cut mechanism 43 includes a guide member 45 that engages with the rail 41a, a rod-shaped vacuum member 46 (FIG. 4) provided to connect the left and right guide members 45, and both film F ends. A pair of clamping mechanisms 47 as tape clamping means for clamping the portion, and a later-described cutting mechanism 48 for cutting the film F are provided. Next to the guide member 45, a rack 53 on the swing plate 41 side is provided. A meshing pinion 52 is provided, and a rotating shaft integrated with the pinion 52 extends toward the opposite swing plate 41 to transmit a rotational driving force. For this reason, the film clamp / cut mechanism 43 can relatively move back and forth with respect to the swing plate 41 by the operation of the cylinder unit 44. When the swing plate 41 swings, the film clamp / cut mechanism 43 also swings.

As shown in FIG. 8, the vacuum member 46 is vacuum-mounted at predetermined intervals along the longitudinal direction on the lower surfaces of two bar-shaped members 46a and 46b extending in parallel with a predetermined width and having a rectangular cross section. A hole is provided, and air is sucked from the vacuum hole to suck the end of the film F in the drawing direction.

The pair of clamping mechanisms 47 clamp both ends in the width direction of the film F, respectively.
This is because, if only the suction of the vacuum member 46 is performed, it is possible to prevent a problem that the end outside the vacuum hole becomes loose or partially bent.

For this reason, as shown in FIG. 7, a clamp cylinder 50 attached to, for example, a vacuum member 46 is provided at the lower end of a Z-shaped clamp arm 51 whose intermediate point is rotatably pivoted about an axis 52. rod end connected to, to rotate the clamp arm 51 of the Z-shaped by operation of the clamp cylinder 50 to the intermediate shaft 52 B around,
The film F is clamped between the upper surface of the clamp arm 51 and the lower surface of the vacuum member 46.

As shown in FIGS. 7 and 8, the cutting mechanism 48 is driven by a traveling motor 54 and is driven by a driving motor 56. The cutting mechanism 48 is connected to the chain 55 and is rotated by a driving motor 56. 57,
The rotating surface of the cutting blade 57 is connected to the pair of vacuum members 4.
6a and 46b, and the lower end faces downward from the lower surface of the vacuum member 46.

Then, the cutting blade 57 is caused to travel in the vehicle width direction by the operation of the traveling motor 54, and at the same time, the driving motor 56
When the cutting blade 57 is rotated, the film F is cut straight.

At each end of the traveling path of the cutting blade 57, a stopper sensor 58 as shown in FIGS. 6 and 7 is provided to stop the traveling of the cutting blade 57.

A description will be given of an attaching method using the above-described tape attaching device.

As described above, when the film F is pulled out from the film roller 23, the film F is pulled out by the film pulling rollers 24 and 25.
8. The film F is sent to the pressure roller 35 via the guide roller 32 and the like, and is further clamped by the film clamp / cut mechanism 43 via the pressure roller 35.

Therefore, it is assumed that the application to the painted surface of the vehicle body W is started from the state where the end of the film F is held by the vacuum member 46 and the clamp mechanism 47.

First, assuming that the wrapping head 10 set at a high position with respect to the vehicle body W descends and sticks from the end of the hood of the vehicle body W, FIG.
The end of the film F clamped by the film clamp / cut mechanism 43 shown in FIG. 4 is positioned at the tip of the hood, and the pressure roller 35 contacts the vehicle body W with the film F interposed therebetween. Then, the pressure roller 35 moves forward while pressing the film F against the vehicle body W toward the root direction of the hood (movement of the vehicle body W or movement of the lapping head 10).
I do.

At this time, the front end of the bonnet usually has a pointed shape at the center, and at the beginning of the attachment, only the narrow portion at the center is provided. Since the film is often stuck, the film F
When the clamps at the ends are released, wrinkles are generated because tension is not applied to both ends of the film F.

Therefore, in the case of this apparatus, the clamping of the film clamp / cut mechanism 43 is continued until the pressure roller 35 advances by a predetermined stroke. That is, as described above, the cylinder unit 44 is extended in accordance with the advance speed of the pressure roller 35, and the suction by the vacuum and the clamping by the clamp arm 51 are continued while the film clamp / cut mechanism 43 is kept at the original position. By the way, the maximum stroke which can continue the clamp is 150 in the case of the embodiment.
mm.

When the pressure roller 35 advances by a predetermined stroke, the holding and suction by the clamp arm 51 are released. At this time, since the film F has already been applied over the entire width of the film F, sufficient tension is applied and wrinkles are generated. do not do. Then, when the stroke advances further by a predetermined stroke, the swing cylinder unit 42 operates to swing the swing plate 41, the film clamp / cut mechanism 43, and the like upward. This is to avoid interference with the curved surface change portion of the vehicle body W, for example, from the hood to the front window.

When the application to the bonnet is completed and the pressure roller 35 hits the window, the lapping head 10 is raised, and the swing cylinder unit 42 is operated to swing the film clamp / cut mechanism 43 downward. In other words, this is for cutting the film F, and the cutting mechanism 48 is operated with the cut portion of the film F being separated from the vehicle body W.

For this reason, the film clamp / cut mechanism 4
3 swings to a position below the pressure roller 35, for example.
After the film F is held by the vacuum member 46 and the clamp mechanism 47, the traveling motor 54 and the drive motor 56 are operated to cut the film F by the cutting blade 57.
At this time, the film F is placed on the vacuum member 4 upstream of the cutting section.
Since the film F is clamped at 6b, the film F does not sag even after cutting. Subsequently, the same attaching work is performed on a painted surface such as a roof and a trunk lid.

[0044]

As described above, according to the tape applying apparatus and the tape applying method of the present invention, since the tape cutter is located behind the tape clamping means, the tape may be loosened or wrinkled even after cutting. No defects. or,
Since the tape clamp means can be freely moved close to and away from the pressure roller in the direction of application, tension can be applied to the tape from the start of application to a predetermined stage, preventing wrinkles especially when applying thin films. Is effective.

[Brief description of the drawings]

FIG. 1 is a front view of an entire apparatus in a case where the present tape applying apparatus is applied as a coating film applying apparatus for an automobile.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged view of a main part in a side view.

FIG. 4 is a front view of FIG. 3;

FIG. 5 is an enlarged view of a stopper mechanism of the film roller.

FIG. 6 is an enlarged view of a main part of FIG. 3;

FIG. 7 is a partially enlarged view of FIG.

8 is a sectional view taken along line BB of FIG. 7;

[Description of Signs] F: Adhesive tape (protective film) 23 : Tape holding means ( film roller ) 35: Pressure roller 44: Tape clamp means is moved closer to and closer to the pressure roller.
Cylinder unit 46b for reversing tape clamp means (a rod with a vacuum hole)
57 ) Tape cutter (cutting blade)

 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Toshihiko Satake 1-10-1, Shinsayama, Sayama City, Saitama Prefecture Honda Engineering Co., Ltd. (56) References JP-A-61-273462 (JP, A)

Claims (3)

(57) [Claims] 1. A tape holding means for holding an adhesive tape, a pressure roller for pressing a pulled-out portion of the adhesive tape to a work and attaching the same, and a tape clamping means for temporarily clamping the pulled-out adhesive tape; comprising a tape cutter for cutting the adhesive tape pulled out, the compression
Roll, tape clamping means and tape cutter
Tape affixing device arranged in the pull-out direction of the tape in order
Wherein the tape clamping means is in a tape sticking direction.
Along with the pressure roller was allowed to approach and separate
Tape applying apparatus, wherein a. 2. The tape sticking apparatus according to claim 1, wherein said tape clamping means is movable up and down. 3. A method of applying an adhesive tape, wherein a drawn-out portion of the adhesive tape is pressed and adhered to a work surface by a pressure roller, and the method comprises temporarily clamping a drawn end of the adhesive tape to perform the pressure bonding. A method for affixing a tape, comprising: advancing a roller and continuing clamping at an initial position until the pressure roller advances a predetermined stroke.