JPH06156862A - Tape attachment and device therefor - Google Patents

Abstract

PURPOSE:To prevent the generation of loosening of a tape after cut by installing a tape clamping means behind a press attaching roller and positioning a tape cutter behind. CONSTITUTION:Even in case at a film shaped tape F, the tape can be attached in the state applied with tension from the initial stage, by installing a tape clamping means 47 which can apply tession on the tape F, behind a press attaching roller 35. A tape cutter is arranged behind the tape clamping means 47, and the tape F applied with the uniform tension can be cut by the tape cutter. Accordingly, the troubles of the loosening of the tape F after cut or the generation of creases can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to improvements in an adhesive tape sticking apparatus and sticking method.

[0002]

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

[0003]

However, in any of the above techniques, the cutting blade is disposed between the guide roller and the pressure roller, and is located upstream of the pressure roller with respect to the tape withdrawing direction. However, there is a problem that a problem occurs especially in the case of a thin tape or the like. That is,
For example, if the tape is relatively hard and narrow such as gum tome, no particular problem occurs. This is because, when the pressure roller is cut on the upstream side of the pressure roller, tension is not applied to the pressure roller, resulting in partial sticking or wrinkling.

[0004]

In order to solve the above problems, the present invention provides a tape holding means for rotatably holding an adhesive tape, and a pressure roller for pressing and sticking a pulled-out portion of the adhesive tape to a work. A tape sticking device comprising a tape clamp means for temporarily clamping the drawn-out adhesive tape and a tape cutter for cutting the drawn-out adhesive tape in the middle, and the tape-clamping means and the tape cutter are arranged in a tape-drawing direction. On the other hand, the tape cutter is provided behind the pressure roller and the tape cutter is positioned behind the tape clamp means. Then, the tape clamp means can be moved toward and away from the pressure roller. Also, the tape clamp means can be moved up and down. Then, the pulled-out portion of the adhesive tape is temporarily clamped by such a device to advance the pressure roller, and the clamping at the initial position is continued until the pressure roller advances by a predetermined stroke.

[0005]

By providing the tape clamp means capable of applying tension to the tape and providing the tape clamp means at the rear of the pressure bonding roller, for example, even a film-shaped tape is attached in a tensioned state from the beginning. You can If the tape clamp means can be moved toward and away from the pressure roller, for example, even when the tape is attached to a work surface where the initial attachment width is narrow and the attachment width gradually widens, It is possible to clamp at the initial position until the width of the tape is widened and uniform tension is applied to the entire tape. That is, since the tape clamping means is kept in the original position until the pressure roller advances to reach the position where the predetermined adhesion width is obtained, the tape clamping means can be moved toward and away from the pressure roller. Further, the tape clamp means is allowed to move up and down, and after the clamp is opened, it is retracted to a position where it does not interfere with the attaching work.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the tape sticking apparatus and sticking method of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a front view of the entire device when the present tape application device is applied as a coating film protective film application device for automobiles, and FIG.
3 is an enlarged view of a main part in a side view, and FIG. 4 is a front view of FIG.

In recent years, a protective film is sometimes attached to the surface of a vehicle body in order to protect the coating film from acid rain and the like while transporting a painted car, which has been painted, to the market.
In addition, such a protective film uses a fairly thin material in order to improve shape conformability to the vehicle body.Although it is thin, it covers the entire vehicle body, for example, when it is mounted on a ship or a car carrier by itself. Since there is a risk of obstructing the visibility, it is often affixed only to the places where true protection is required, such as the hood and roof, avoiding the windows.

On the other hand, it is necessary to prevent wrinkles caused by static electricity in order to attach the thin protective film while cutting it to a predetermined length in accordance with the shape of the bonnet or the like, and to prevent wrinkles from occurring. The tape applying device is configured as an effective device for applying a thin tape such as the coating film protective film.

That is, as shown in FIG. 1 and FIG. 2, this device is composed of left and right mounts 1 and 2 provided on both sides of the car body W and extending in the carrying direction of the car body W, and a mount 1 on one side. Rail 1
The direction in which the vehicle body W is conveyed by engaging with a (the direction perpendicular to the plane of FIG. 1)
And a rolling base 4 capable of rolling in the pedestal 2 on the other side, and a gate-shaped lapping gate 5 straddling the sliding base 3 and rolling base 4. Is provided.

On the upper surface of the sliding body 3, the vehicle body W
1 is provided with a servomotor 6 for driving the sliding base 3 along the carrying direction of the, and a pinion 7 provided at the lower end of the output shaft of the servomotor 6 is provided on the mount 1 and shown in FIG. It meshes with a rack 8 extending in the direction perpendicular to the plane of the drawing.

That is, the sliding base 3 slides along the gantry 1 by the drive of the servomotor 6, and the rolling base 4 and the wrapping gate 5 move integrally with the sliding base 3.

The lapping gate 5 is provided with a lapping head 10 which can be raised and lowered.

This lapping head 10 is engaged with a guide rail 5a provided on a column of the lapping gate 5 and is provided with a pair of left and right elevating stands 11 and 11 which can be raised and lowered, and an elongate side extending from one elevating stand 11 to the outside. Chain connecting part 11a
The chain 12 is connected to the chain connecting portion 11a.

As shown in FIG. 2, the chain 12 includes a sprocket 13 provided on a lower slide base 3,
A weight member 16 that meshes with a sprocket 14 provided on the upper portion of the support pillar of the lapping gate 5 and has one end connected to the balance weight 15 and the other end that prevents sagging via a roller 15a below the balance weight 15.
It is connected to the. A servo motor 17 for driving the lower sprocket 13 is provided on the slide base 3.

Further, as shown in FIG. 1, the rotating shaft 18 of the upper sprocket 14 extends parallel to the transverse beam of the lapping gate 5 to the other pillar, and the other end of the sprocket 20 is attached to the extending end. Has been. A lower sprocket 21 is provided on the rolling base 4, and a chain 22 is engaged with the sprockets 20 and 21, and a chain coupling portion (not shown) of the lifting base 11 on the side is connected to the chain 22. Are connected.

Therefore, when the sprocket 13 is rotated by the operation of the servo motor 17, the left and right chains 12, 22 are
Runs 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 lifts 11, 11.
1 and 11 include a pair of left and right side plates 11 as shown in FIG.
b, 11b are provided, and a shaft P is provided on the upper part of the side plate 11b.
A sideways U-shaped swinging plate 19 that is swingable is provided and is swingable by a tension cylinder unit 30 described later. A plurality of rollers having roller shafts 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 above the side plate 11b. The film roller 23 rotatably holds the wound protective film F, and below the film roller 23, a pair of upper and lower films is provided. Film pull-out rollers 24, 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.

Further, each film drawing roller 24, 25
Is a drive roller 24 that is rotated by a motor 26.
a and 25a and pressure rollers 24b and 25b that can be moved back and forth by the cylinder unit 27.
The protective film F is sandwiched and pulled out by 4a, 25a and the pressing rollers 24b, 25b.

A tension roller 28 is provided below it. Both ends of the tension roller 28 are rotatably attached to the tip ends of the cylinder rods of a pair of left and right position adjustment cylinder units 31 fixed to the left and right swing plates 19, and the film roller 23 and the film drawing roller are attached. The rotating shaft has a side plate 1 like 24 and 25.
The configuration is different from the configuration in which it is rotatably supported by 1b. That is, when the protective film F is displaced in the width direction, either the left or right cylinder unit 31 is moved back and forth to correct the displacement in the inclination direction of the roller shaft.

Further, the above-mentioned tension cylinder unit 3
The tip of the cylinder rod 0 is connected to the lower end of the rocking plate 19, and the rocking plate 19 rocks around the axis P by the operation of the tension cylinder unit 30. Therefore, the displacement correction cylinder unit 31 and the tension roller 28 attached to the swing 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. The pressure roller 3 is provided below the tension roller 33.
5 is provided, and the roller shaft of the pressure roller 35 is attached to the side plate 11b.
It is rotatably supported by.

That is, the pressure roller 35 is for pressing the drawn film F toward the coated surface of the vehicle body W and adhering it. In this apparatus, after the film F is pulled out for a predetermined length and attached, the film F is automatically cut by a cutting mechanism described later. However, in order to prevent slack in the film when the film F is pulled out for a predetermined length, the film F shown in FIG. The stopper 36 as shown in FIG. 4 stops the rotation of the film roller 23 due to the inertial force.

In other words, the pressing unit 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, and the film F having a predetermined length or more is prevented from being pulled out.

By the way, at the lower ends of the left and right side plates 11b, there is provided an oscillating plate 41 rotatable about a rotary shaft 40 as shown in FIGS. 3 and 4, and an oscillating cylinder unit connected to the oscillating plate 41. The shaft 42 is swingable around the rotary shaft 40. The swing angle is, for example, 70 degrees upward and 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 to 7. 6 is an enlarged view of a main part of FIG. 3, FIG. 7 is a partially enlarged view of FIG. 6 taken along line A, and FIG. 8 is a sectional view taken along line BB of FIG.

A cylinder unit 44 as shown in FIG. 6 is attached to the inside of the oscillating plate 41, and the tip of the rod of the cylinder unit 44 is connected to the 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 parts and a later-described cutting mechanism 48 for cutting the film F are provided. Next to the guide member 45, the rack 53 on the rocking plate 41 side is provided. A pinion 52 meshing with the pinion 52 is provided, and a rotary shaft integrated with the pinion 52 is extended toward the oscillating plate 41 on the opposite side to transmit the rotational driving force. Therefore, the film clamp / cut mechanism 43 can be moved forward and backward relative 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 together.

Further, as shown in FIG. 8, the vacuum members 46 are vacuumed at predetermined intervals along the longitudinal direction on the lower surfaces of the two bar-shaped members 46a and 46b having rectangular cross sections which extend in parallel at predetermined intervals. A hole is provided, and air is sucked from the vacuum hole so that the end portion of the film F in the pull-out direction is sucked.

The pair of clamping mechanisms 47 are for clamping both ends of the film F in the width direction,
This is to prevent the occurrence of problems such as slackening or partial bending of the end portion that has deviated from the vacuum hole, only by suction of the vacuum member 46.

Therefore, as shown in FIG. 7, the clamp cylinder 50 is attached to the lower end side of the Z-shaped clamp arm 51 whose pivot point is pivotally mounted around the shaft 52, for example, to the vacuum member 46. Of the rod is connected, the Z-shaped clamp arm 51 is rotated around the intermediate shaft 52 by the operation of the clamp cylinder 50, and the film F is sandwiched between the upper surface of the clamp arm 51 and the lower surface of the vacuum member 46. I try to attach it and clamp it.

As shown in FIGS. 7 and 8, the cutting mechanism 48 includes a chain 55 that runs in the vehicle width direction by driving a running motor 54, and a cutting blade that is connected in the middle of the chain 55 and that 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, the lower end of the vacuum member 46 is made to face downward.

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

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

A sticking method using the above tape sticking device will be described.

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

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

First, assuming that the lapping head 10 set at a high position with respect to the vehicle body W descends and is pasted from the tip of the bonnet of the vehicle body W, FIG.
The end of the film F clamped by the film clamp / cut mechanism 43 shown in FIG. 2 is positioned at the tip of the bonnet, and the pressure roller 35 contacts the vehicle body W with the film F sandwiched therebetween. The pressure roller 35 moves forward (moves the vehicle body W or the lapping head 10) while pressing the film F onto the vehicle body W toward the root of the hood.
To do.

At this time, the front end side of the bonnet usually has a sharp central portion, and at the beginning of attachment, there is only a narrow central portion, and the whole area in the vehicle width direction is reached only at a position recessed from the front end by a certain distance. Since the film is often stuck, the film F is moved at the same time when the pressure roller 35 is advanced.
When the clamps at the ends are released, wrinkles occur because both ends of the film F are not tensioned.

Therefore, in the case of this apparatus, the clamping of the film clamping / cutting 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 according to the advancing speed of the pressure bonding roller 35, and the suction by the vacuum and the clamp by the clamp arm 51 are continued while the film clamp / cut mechanism 43 is kept at the original position. By the way, in the case of the embodiment, the maximum stroke at which the clamp can be continued is 150
mm.

When the pressure roller 35 advances by a predetermined stroke, the holding and suction by the clamp arm 51 is released. At this time, since the film F has already been attached over the entire width of the film F, sufficient tension is applied and wrinkles occur. do not do. When the stroke is further advanced 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 such as from the hood to the front window.

When the attachment to the bonnet is completed and the pressure roller 35 is applied to the window, the lapping head 10 rises and the swing cylinder unit 42 is operated to swing the film clamp / cut mechanism 43 downward. That is, this is for cutting the film F, and the cutting mechanism 48 is operated with the cutting portion of the film F separated from the vehicle body W.

Therefore, the film clamp / cut mechanism 4
3 swings to a position below the pressure roller 35,
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 attached to the vacuum member 4 upstream of the cutting portion.
Since it is clamped by 6b, the film F does not sag even after cutting. Then, continue to apply similar work to the painted surface of the roof, trunk lid, etc.

[0044]

As described above, in the tape sticking apparatus and sticking method of the present invention, since the tape cutter is positioned behind the tape clamp means, the tape may sag or wrinkle even after cutting. There is no defect. or,
Since this tape clamp means can be moved toward and away from the pressure roller along the sticking direction, tension can be applied to the tape from the start of sticking to a predetermined stage, and wrinkles are prevented especially when sticking thin films. Has an effect on.

[Brief description of drawings]

FIG. 1 is a front view of the entire apparatus when the tape application apparatus is applied as a coating film protective film application apparatus for automobiles.

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.

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

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

FIG. 7 is a partially enlarged view of FIG. 6 viewed from A.

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

[Explanation of symbols]

 10 Lapping head 23 Film roller 35 Crimping roller 43 Film clamp / cut mechanism

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshihiko Satake 1-10-1 Shin-Sayama, Sayama-shi, Saitama Honda Engineering Co., Ltd.

Claims (4)

[Claims] 1. A tape holding means for holding an adhesive tape, a pressure roller for pressing and sticking a pulled-out portion of the adhesive tape to a work, and a tape clamping means for temporarily clamping the pulled-out adhesive tape, A tape cutter is provided for cutting the pulled-out adhesive tape, and the tape clamping means and the tape cutter are provided behind the pressure roller in the tape withdrawing direction,
A tape sticking device characterized in that a tape cutter is located behind a tape clamp means. 2. The tape adhering device according to claim 1, wherein the tape clamp means is movable toward and away from the pressure roller along the adhering direction. 3. The tape sticking device according to claim 1, wherein the tape clamp means is vertically movable. 4. A method of sticking an adhesive tape, wherein the pulled-out portion of the adhesive tape is pressed and stuck to the surface of a work by means of a pressure roller, in which the pull-out end portion of the adhesive tape is temporarily clamped. A tape application method characterized in that the roller is advanced, and the clamping is continued at the initial position until the pressure roller advances a predetermined stroke.