JP2001199625A - Protective film peeling device and its method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protective film peeling device capable of easily and certainly peeling a protective film from a work such as a plastic substrate and its method. SOLUTION: In a film peeling mechanism 3, a fixing plate 31 is moved down by a two-axis robot 34, and a work pressing plate 32 fixed to a position separated by a certain distance from the fixing plate 31 is stopped when it contacts with the work WA having the protective film. Then, an air blasting device 2 rotates a rotor 21 slowly and clockwise with a rotation driving mechanism (not shown) a plurality of times while blasting very strong air from an air blasting outlet 21a of the rotor 21. Thus, the protective film F peels from a work W at a corner of the work WA to form a starting part. The starting part of the protective film F formed in such a manner is clamped between a work pressing plate 32 and a clamp plate 33, and perfectly peels the protective film F from the work W of the work WA.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective film peeling method for peeling a protective film laminated on a surface of a work such as a plastic substrate, and more particularly to a display as an optical display component, an automobile interior panel,
The present invention relates to a protective film peeling apparatus for peeling a protective film laminated on a surface of a plastic substrate made of polycarbonate, acrylic, polyethylene, or the like, which is used for a building material part used for a window of an outdoor passage, and a method therefor.

[0002]

2. Description of the Related Art Conventionally, the work of peeling a protective film from a plastic substrate has often relied on manual work, but recently, in order to automate this work, the protective film is peeled off with a roll-up type adhesive tape. A method has been proposed in which the peeled protective film is wound up and collected.

[0003]

However, in the above-mentioned conventional method, there is a problem that the running cost is increased because the adhesive tape is consumed for peeling off the protective film and the like. Further, there is a problem that the peeling of the protective film may not be reliably performed depending on the degree of variation in the adhesive strength of the protective film.

The present invention has been made in view of the above points, and an object of the present invention is to provide a protective film peeling apparatus and a method for easily and surely peeling a protective film from a work such as a plastic substrate. Aim.

[0005]

According to the first aspect of the present invention, there is provided a protective film peeling device for peeling a protective film from a protective film-laminated work having a protective film laminated thereon. A stage to be provided, and an air blowing device that is disposed near the work with the protective film placed on the stage and blows air to a corner of the work with the protective film, and the air blowing device includes an air blowing device. A protective film peeling device characterized by forming a trigger portion for peeling the protective film from the work by blowing air to the corner of the work with the protective film while changing the spray direction of the work.

[0006] In the above-mentioned first solution,
It is preferable that the air blowing device has a rotating body provided with an air blowing port on a rotating surface, and that the direction of air blowing on the work with the protective film is changed by rotation of the rotating body. Preferably, the rotating body has a cylindrical rotating surface, and a plurality of air outlets are provided on the rotating surface. Further, it is preferable that a rotation axis of the rotating body is substantially parallel to a plane formed by a boundary portion between the work and the protective film.

[0007] In the above-mentioned first solution,
It is preferable that the apparatus further comprises a film peeling mechanism for peeling the protective film from the work by clamping a trigger portion of the protective film. It is preferable that the apparatus further includes a transport mechanism for supplying the work with the protective film onto the stage, and a transport mechanism for discharging the work from which the protective film has been peeled off from the stage.

According to a second aspect of the present invention, there is provided a method for peeling a protective film from a work with a protective film on which a protective film is laminated, the method comprising the steps of: In addition, a step of locating an air blowing device that blows air against the corner of the work with a protective film, and applying air to the corner of the work with a protective film while changing the direction of air blowing with the air blowing device. Forming a trigger for peeling off the protective film from the workpiece by spraying the protective film.

[0009] In the above-mentioned second solution,
It is preferable that the method further includes a step of peeling the protective film from the work by clamping a trigger portion of the protective film by a film peeling mechanism.

According to the first and second solutions of the present invention, the air is blown to the corners of the work with the protective film while continuously changing the air blowing direction by the air blowing device. The trigger portion of the protective film can be easily formed at the corner of the work with the protective film without being damaged, so that the protective film can be easily and reliably peeled from the work.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are views for explaining an embodiment of the present invention.

FIG. 1 is a perspective view showing a protective film peeling device according to the present embodiment, and FIG. 2 is a partially enlarged plan view showing a main part (film peeling position A) of the protective film peeling device shown in FIG. is there.

As shown in FIGS. 1 and 2, the protective film peeling device 10 includes a work supply mechanism 1 for supplying a work WA with a protective film, and a work WA with a protective film.
An air blowing device 2 for forming a trigger for peeling off the protective film by blowing air to the corners of the film; a film peeling mechanism 3 for peeling off the protective film from the work by clamping the trigger of the protective film; It has. In addition, work WA with a protective film
As shown in FIG. 4, a protective film F is laminated on the surface of a flat work W such as a plastic substrate.

The work supply mechanism 1 includes a work fixing stage 11 on which a work WA with a protective film is placed.
And a uniaxial table 12 for reciprocating the work fixing stage 11 in the X direction.

Further, the air blowing device 2 changes the air blowing direction while changing the work WA with the protective film.
By blowing air to the corners of the work W
The end of the protective film F is peeled off from the end. The air blowing device 2 includes a rotating body 21 having a cylindrical rotating surface 21c provided with four slit-shaped air blowing ports 21a, and an air supply for guiding air to the air blowing port 21a of the rotating body 21. A mechanism (not shown) is provided, and by rotating the rotating body 21 by a rotation driving mechanism (not shown), it is possible to change the blowing direction of air to the work WA with the protective film (FIG. 4). The rotating body 21 is arranged near the work WA with the protective film when the work WA with the protective film is supplied to the film peeling position A by the work supply mechanism 1. At that time, the rotating shaft 21b of the rotating body 21 is substantially parallel to the plane formed by the boundary between the work W and the protective film F, and is positioned below the plane (FIG. 4
reference). The corner of the work WA with the protective film is
In order to increase the resistance when the air is blown and to easily peel off the work W or the protective film F, as shown in FIG. It is preferable to keep it.

The film peeling mechanism 3 includes a fixed plate 31, a work holding plate 32 fixed at a position separated from the fixed plate 31 by a fixed distance via a shaft 36 (see FIG. 3A, etc.), A clamp plate 33 for clamping a trigger portion of the protective film F between the work holding plate 32 and the work holding plate 32 is provided. Here, the fixed plate 31 is reciprocated in the X direction and the Z direction by the two-axis robot 34. The clamp plate 33 is reciprocated in the Z direction between the fixed plate 31 and the work holding plate 32 by an actuator 35 connected to the fixed plate 31.
As shown in FIGS. 3 (a), (b), (c) and (d), the film pressing plate 32 detects the presence or absence of the protective film F between the work pressing plate 32 and the clamp plate 33. A sensor 37 is provided so that the clamp plate 33 can be closed when the trigger portion of the protective film F enters between the work holding plate 32 and the clamp plate 33. As shown in FIGS. 3 (a), 3 (b), 3 (c) and 3 (d), the side of the work holding plate 32 which comes into contact with the work WA with the protective film is provided with a cushioning material 38 made of rubber or the like.
The work WA with the protective film can be prevented from being damaged even when the work holding plate 32 is made of metal or the like.

In FIG. 1, the work WA with the protective film before the protective film F is peeled off is stocked in the stocker 4 on the supply side. The work W after the protection film F has been peeled off is stored in the discharge side stocker 6. Further, the protective film F peeled from the work WA with the protective film is accumulated in the protective film accumulation box 7.

Here, the work WA with the protective film stocked in the supply side stocker 4 is automatically transferred from the supply side stocker 4 onto the work fixing stage 11 by a transfer plate (conveyance mechanism) 5 having suction pads on the lower surface side. It is supplied to. The work W from which the protective film F has been peeled off is automatically discharged from the work fixing stage 11 to the discharge side stocker 6 by the transport plate 5. Note that the transport path of the transport plate 5 can be switched between when the work WA with the protective film is supplied and when the work W is discharged. Further, the protective film F moves to the protective film collecting box 7 while being clamped between the work holding plate 32 and the clamp plate 33 of the film peeling mechanism 3, and further moves between the work holding plate 32 and the clamp plate 33. Is released, it falls into the protective film accumulation box 7 by natural fall. In addition,
A mechanism for forcibly dropping and accumulating the protective film F may be provided.

Next, the operation of the present embodiment having the above-described configuration will be described with reference to FIGS. 3 (a), 3 (b), 3 (c) and 3 (d) are views for explaining a procedure for peeling the protective film F from the work WA with the protective film by the protective film peeling device 10 shown in FIG. FIG. 4 is a view corresponding to FIG. 3 (c) showing a state in which air is blown from the rotating body 21 to the work WA with the protective film.

First, the work WA with the protective film previously stored in the supply side stocker 4 is transferred by the transfer plate 5 to the work fixing stage 11 of the work supply mechanism 1.
Supply on top. The work fixing stage 11 is located on the supply side stocker 4 side so that the work WA with the protective film can be easily supplied first.
After A is supplied, it is moved to the film peeling position A by the uniaxial table 12. Thereby, the work WA with the protective film is attached to the work holding plate 3 of the film peeling mechanism 3.
2 below.

FIGS. 2 and 3 (a) correspond to the position before the movement of the work WA with the protective film, and FIG. 3 (b) corresponds to the position after the movement.

As shown in FIG. 3B, the corner of the work WA with the protective film stops at a position protruding to the right side of the work holding plate 32 of the film peeling mechanism 3 in the drawing. Rotating surface 2 of rotating body 21
1c.

Next, in the film peeling mechanism 3, the fixed plate 31 is moved downward by the biaxial robot 34, and the work holding plate 32 fixed at a position separated from the fixed plate 31 by a predetermined distance is provided with a protective film. It stops when it comes into contact with the work WA. Thereby, the work WA with the protective film can be prevented from coming off the work fixing stage 11 when forming a trigger portion for peeling the protective film F from the corner of the work WA with the protective film.

Thereafter, the air blowing device 2 slowly rotates the rotating body 21 a plurality of times clockwise by a rotation driving mechanism (not shown) while blowing intense air from the air blowing port 21a of the rotating body 21 (FIG. 1). 3 (c) and FIG. 4). Thereby, while continuously changing the air blowing direction, air is blown to the corners of the work WA with the protective film, and the protective film F is peeled off from the work W at the corners of the work WA with the protective film. Is formed.

As shown in FIG. 3C, the trigger portion of the protective film F thus formed is pushed into the left side of the drawing by blowing air, and the work holding plate 32 is pressed.
And between the clamp 33. At this point, the film detection sensor 37 of the film peeling mechanism 3 detects the protective film F, and the actuator 35 controls the clamp plate 33.
By sliding downward through the shaft 36,
The trigger portion of the protective film F is clamped between the work holding plate 32 and the clamp plate 33.

When the protective film F is clamped in this manner, the rotation of the rotating body 21 is stopped, and the blowing of air from the air blowing port 21a is stopped.

Thereafter, the film peeling mechanism 3 is moved to the position shown in FIG.
As shown in FIG. 7, in a state where the protection film F is clamped between the work holding plate 32 and the clamp plate 33, the fixed plate 31 is moved to the upper side and the left side in the drawing by the biaxial robot 34, and the work of the work WA with the protection film is performed. The protective film F is completely peeled off from W.

The protective film F thus peeled moves to the protective film collecting box 7 while being clamped between the work holding plate 32 and the clamp plate 33 of the film peeling mechanism 3, and the actuator 35 As a result, the clamp plate 33 moves upward and the work holding plate 3
When the clamp between the clamp plate 2 and the clamp plate 33 is released, it falls into the protective film accumulation box 7 by natural fall.

On the other hand, the work W from which the protective film F has been peeled is moved to the discharge side stocker 6 side while being fixed to the work fixing stage 11, and then moved by the transport plate 5.
The workpiece is discharged from the work fixing stage 11 to the discharge side stocker 6.

As described above, according to the present embodiment, the air blowing device 2 blows air to the corners of the work WA with the protective film while continuously changing the air blowing direction, thereby damaging the work W. Thus, the trigger portion of the protective film F can be easily formed at the corner of the work WA with the protective film, so that the protective film F can be easily and reliably peeled off from the work W.

In the embodiment described above, four slit-shaped air outlets 21a are provided at equal intervals (90-degree intervals) on the rotating surface 21c of the rotating body 21, but the present invention is not limited to this. The outlets 21a can be provided in an arbitrary number, shape, and arrangement position.

In the above-described embodiment, the rotating shaft 21b of the rotating body 21 is substantially parallel to the plane formed by the boundary between the work W and the protective film F, and is located below the plane. However, as long as the trigger portion of the protective film F can be reliably formed on the corner of the work WA with the protective film, the work WA is not limited to this, and can be arranged in any relationship.

[0033]

As described above, according to the present invention, it is possible to easily form the trigger portion of the protective film at the corner of the work with the protective film without damaging the work, thereby protecting the work from the work. The film can be easily and reliably peeled off.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a protective film peeling device according to the present invention.

FIG. 2 is a partially enlarged plan view showing a main part of the protective film peeling device shown in FIG.

FIG. 3 is a view for explaining a procedure of peeling a protective film from a work with a protective film by the protective film peeling device shown in FIG.

FIG. 4 is a diagram showing a state in which air is blown from a rotating body to a work with a protective film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Protective film peeling apparatus 1 Work supply mechanism 11 Work fixing stage 12 Uniaxial table 2 Air blowing device 21 Rotating body 21a Air blowing port 21b Rotating shaft 21c Rotating surface 3 Film peeling mechanism 31 Fixed plate 32 Work holding plate 33 Clamp plate 34 Biaxial Robot 35 Actuator 36 Shaft 37 Film detection sensor 4 Supply side stocker 5 Transport plate 6 Discharge side stocker 7 Protective film accumulation box WA Work with protective film W Work F Protective film

Claims (9)

[Claims] 1. A protective film peeling device for peeling a protective film from a work with a protective film laminated with a protective film, a stage for placing the work with a protective film, and a work with a protective film placed on the stage And an air blowing device that blows air against a corner of the work with a protective film, wherein the air blowing device changes a blowing direction of the air with respect to the corner of the work with the protective film. A protective film peeling device for forming a trigger portion for peeling the protective film from a work by blowing air. 2. The air blowing device according to claim 1, further comprising a rotating body provided with an air outlet on a rotating surface, wherein the rotating body changes the direction of blowing air to the work with the protective film. Item 2. A protective film peeling device according to Item 1. 3. The protective film peeling device according to claim 2, wherein the rotating body has a cylindrical rotating surface, and a plurality of air outlets are provided on the rotating surface. 4. The protective film peeling device according to claim 2, wherein a rotation axis of the rotating body is substantially parallel to a plane formed by a boundary portion between the work and the protective film. 5. The protective film peeling device according to claim 1, further comprising a film peeling mechanism that peels off the protective film from the work by clamping a trigger portion of the protective film. 6. The protective film peeling device according to claim 1, further comprising a transport mechanism for supplying the work with the protective film onto the stage. 7. The protective film peeling device according to claim 1, further comprising a transport mechanism for discharging the work from which the protective film has been peeled off from the stage. 8. A protective film peeling method for peeling a protective film from a work with a protective film laminated with a protective film, wherein a corner of the work with a protective film is provided near a work with the protective film placed on a stage. A step of locating an air blowing device that blows air against the workpiece, and peeling the protective film from the work by blowing air to a corner of the work with the protective film while changing the air blowing direction by the air blowing device. Forming a trigger portion for performing the method. 9. The method according to claim 8, further comprising a step of clamping the trigger portion of the protective film by a film peeling mechanism to peel the protective film from the work.