JP2000313061A - Apparatus for sticking film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stick a flexible film on the surface of an object of sticking having a curved surface or a side wall, without occurrence of wrinkles or mixing-in of bubbles, by feeding the film between the object being held and oscillating a pressing pad having a curved pressing surface and the pressing pad in pressing so that the contact part be moved over the whole surface of the object. SOLUTION: A thermoplastic sticking film 2 with a support film is fed from a feed roll 23 and cuts are made only at prescribed positions of the film 2, while tension is lowered. Pressure sticking of the film 2 is started by bringing the left end of a pressing surface 3a of a pressing pad 3 into contact with the left end of a surface 1c of an object of sticking by the operation of a vertical drive shaft 10 and the pressure sticking part is moved from the left ends of the pressing surface 3a and the surface 1c of the object to the center and then to the right ends thereof to perform sticking. At the end of the pressure sticking, the pressing pad 3 is raised by removing the pressure of the vertical drive shaft 10 and a part between the cuts of the film 2 is released by applying a tension to the support film. Thereby the sticking is completed, while the support film is wound on a roll 24. According to this constitution, sticking can be performed without mixing-in of bubbles or occurrence of wrinkles.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a flexible film (hereinafter simply referred to as "film") to an object to be attached having a curved surface or a side wall, for example, an inner wall surface of a CRT for a PC or a cathode ray tube for a television. The present invention relates to a device that can be attached.

[0002]

2. Description of the Related Art Conventionally, in a film sticking operation, a flat plate such as a circuit board circuit board or a decorative board is used as an object to be stuck. For this reason, the flat object to be bonded and the film can simultaneously pass between the two rolls of the holding roll and the laminating roll. At this time, the laminating roll presses the film on the object to be bonded supported by the holding roll, thereby performing the laminating operation.

If the object to be bonded has a curved surface or a side wall, these become obstructive factors, and the object to be bonded and the film cannot pass between the two rolls of the conventional apparatus. Can not. Therefore, the film could not be efficiently adhered to the inner wall surface or the outer wall surface of a curved surface or a side wall such as a CRT for a PC or a cathode ray tube for a television.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems by providing an apparatus capable of efficiently attaching a film to a surface of an object having a curved surface or a side wall without wrinkles or air bubbles. Is to provide.

[0005]

SUMMARY OF THE INVENTION The present invention relates to an apparatus for attaching a flexible film, comprising: holding means for holding an object to be attached; a pressure pad having a curved pressing surface; Means for supplying the flexible film between the attachments, by bringing the pressure surface of the pressure pad and the attachment surface of the held object to be adhered close to each other with the flexible film interposed therebetween and making partial contact therewith; Pressurizing means that pressurizes, separates and releases pressure, and, when pressurized by the pressurizing means, has a rocking means that rocks the pressure pad to move the contact portion over the entire surface of the application surface. It is intended to provide a film sticking apparatus characterized by the above.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION As a holding means for holding an object to be attached, a surface to which the object to be attached is attached is exposed, and
There is no particular limitation as long as the object to be stuck is held so that pressure is applied to the surface to be stuck when the film is stuck. For example, a pedestal-shaped one that exposes the attachment surface of the object to be attached and receives the object to be attached is suitable.

The pressure pad may be a rigid body having a curved pressure surface capable of adhering to the entire surface of the object to be adhered, or the rigid body pressure surface may be covered with an elastic body. It may be something. Further, the pressing surface of the pressing pad and the attaching surface of the object to be stuck may be a pressing surface that forms a linear contact portion via a film when the pressure swings. For example, by setting the curvature of the pressing surface to be different from the curvature of the bonding surface of the object to be bonded, the linear contact portion can be moved by the swing of the pressing pad to perform the bonding. For example, when the attaching surface is a flat surface surrounded by side walls or a curved surface, such as a film attaching surface of a CRT for a PC or a cathode ray tube for a television,
It is preferable that the curvature of the pressing surface in the swing direction be smaller than the curvature of the attachment surface. Conversely, when the attachment surface is a curved surface that is convexly curved, the curvature of the pressing surface in the swing direction is preferably larger than the curvature of the attachment surface. Further, it is preferable that the pressing surface is formed of an elastic body. By swinging such a pressure pad, the pressure surface of the pressure pad and the attachment surface of the object to be adhered come into linear contact via the film, and the linear contact portion moves as it swings. Then, the film is pressure-bonded to the entire surface of the attached object to be attached. The term “contact in a linear shape” means that the contact is made not in the entire surface but in a straight line shape having a certain width at right angles to the moving direction of the contact portion. By forming the pressurized surface with an elastic body, the linear contact part presses the film so that the film is squeezed, whereby the air between the film and the pasted surface of the pasted object is efficiently expelled, and bubbles are mixed and wrinkles are generated. Is prevented. This line width is not particularly defined as long as the above characteristics are satisfied. The starting point of the linear contact at the time of pressurization may be from the center of the application surface or from the end, but it is preferable to move the entire surface of the application surface so as to perform pressure bonding with uniform pressing force.

[0008] The shape of the curved surface of the pressing surface includes, for example, the front surface and the back surface of a partial sphere, and the front surface and the back surface of a bent flat plate.

The elastic body is not particularly limited as long as it has necessary elasticity, heat resistance and chemical resistance. For example, plastic rubber, elastomer such as silicone rubber and fluorine rubber having releasability are suitable. As a method of forming the elastic body on the surface, there are a method of bonding the elastic body to the holder and a method of fixing the elastic body with a metal fitting, but are not particularly limited. The rigid body for supporting the elastic body is not particularly limited as long as it has a certain rigidity, and suitable materials include, for example, stainless steel, steel, and hard plastic.

[0010] Films are generally often thermoplastic. For this reason, it is preferable that the surface of the pressure pad is heated. This is because the film can be efficiently attached when heated. The heating temperature depends on the type of film, but is generally preferably from 70 to 150C. As a heating method, a method of attaching a sheath heater to the pressure pad,
There are a method of forming a pressure pad with a buried heater, a method of attaching a thin-film flexible heater to the front or back surface of the elastic body, and the like, but they are not particularly limited as long as they can be heated to a required temperature.

As a film supply means for supplying a film between the pressure pad and the object to be adhered, an amount of film necessary to cover the surface to be adhered of the object to be adhered is applied to the pressure pad and the object to be adhered. There is no particular limitation as long as the means can be supplied between attachments. For example, there is a means using a support film. For example, a film with a long support film, a feeding roll and a take-up roll that are transported between a pressure pad and a material to be pasted, and a film cutter that cuts in front of the material to be pasted only on the film to be transported. Is preferred. A long film with a supporting film is fed from a feeding roll, and a film cutter cuts only the film in front of an object to be attached, and only the film is cut to a required size. After affixing the film, the film is separated from the support film at a portion between adjacent cuts, and the support film is wound up by a take-up roll. Alternatively, a film with a support film in which only a film is cut in advance may be fed and used. Alternatively, the end of the long film or the cut film may be conveyed onto the surface to be adhered using a vacuum suction device. The film supply method is not particularly limited as long as a required amount can be supplied within a time.

The pressurizing means presses the pressurizing surface of the pressurizing pad and the holding surface of the object to be stuck in close proximity to each other with a film interposed therebetween and partially presses the film. It is a means to cancel. As the pressing means, for example, it has a drive mechanism for raising and lowering the pressing pad, presses the pressing surface and the bonding surface of the object to be bonded in close proximity to each other with the film interposed therebetween and partially presses the film. Then, the pressure is released. As an example of such a pressing means, there is a driving device which is mounted on the side opposite to the pressing surface of the pressing pad and moves the pressing pad up and down. The pressure during pressurization is
0.1 to 10 kgf / cm ² is preferable.

As another example of the pressing means, there is provided a drive mechanism for moving the held object up and down, and the adhering surface and the pressing surface of the pressing pad are brought close to each other with the film interposed therebetween, and a partial , And pressurized, and separated to release the pressurization. As an example of such a pressing means, there is a driving device which is attached to the back surface of the holding portion for holding the object to be attached and moves the object to be attached up and down.

As the swinging means, at the time of pressing, the pressing surface of the pressing pad and the attaching surface of the object to be bonded are brought into linear contact with a flexible film interposed therebetween, and the pressing pad is swung. It is preferable that the linear contact portion is moved over the entire surface of the application surface by being moved. As such a swinging means, for example, a swinging means having a drive mechanism for swinging a pressure pad and moving a contact portion in a state where an object to be stuck is fixed is exemplified. As such a swinging means, for example, a shaft attached to the pressure pad and supporting the pressure pad, and attached to the opposite side of the pressure surface of the pressure pad,
One having a drive device that moves the contact portion by swinging the pressure pad around a shaft as a fulcrum is exemplified.

Another example of the oscillating means is one having a drive mechanism for oscillating a pressure pad to move a contact portion by moving an adherend in a pressurized state.

As a material to be adhered to the film using the apparatus of the present invention, a CRT for a PC, a cathode ray tube for a television, or the like is suitable, but is not limited thereto. It may not have a side wall surrounding the curved film attaching surface. When the pressing surface of the pressing pad is formed of an elastic body, the bonding surface may be a flat surface.

Examples of the film to be stuck using the apparatus of the present invention include photosensitive films for forming fluorescent patterns and photosensitive films for forming color filters, and adhesive films.

Hereinafter, the apparatus of the present invention will be described with reference to the drawings.

FIG. 1 is a side view of an example of an adhered object having a curved surface and a side wall, and FIG. 2 is a plan view of the adhered object of FIG. The object 1 shown in FIGS. 1 and 2 is a PC CRT having a curved surface 1a convex upward and having a side wall 1b on the periphery. The curved surface of the back surface of the curved surface 1a becomes the attaching surface 1c.

FIG. 3 shows a partial front view of one embodiment of the apparatus of the present invention. The holding means for holding the object and the means for supplying the film are not shown. In the apparatus of this aspect, the film is pressure-bonded by a two-system drive mechanism of a drive device for moving the pressure pad up and down, and a drive device for bringing the pressure pad into linear contact with the entire surface to be pasted and swinging. can do. The pasted object 1 showing the cross section is
The attachment surface 1c is held while being exposed upward (the holding portion is not shown). A pressing pad 3 having a pressing surface 3a formed of an elastic body 4 is disposed with the pressing surface 3a facing downward. On the opposite side of the pressing surface 3a of the pressing pad 3, a horizontal support plate 14a is arranged. A pair of pressure pad support plates 13 are provided vertically below the horizontal support plate 14a, and are disposed on the entire surface side and the back side of the pressure pad 3. The pressure pad 3 is supported by two pressure pad support plates 13 and a shaft 5 passing through near the pressure surface 3a at the left end of the pressure pad 3. The right end of the pressure pad 3 is connected to the horizontal support plate 14a.
, The pressure pad is in the upper right state. A vertical drive shaft 10 is provided upright on the upper surface of the horizontal support plate 14a. A pair of sliders 12a is further provided upright on the upper surface of the horizontal support plate 14a in parallel with the vertical drive shaft 10. The vertical drive shaft 10 is mounted on the horizontal support plate 1.
It penetrates the fixed horizontal support plate 14b above 4a and is fixed by the fixed horizontal support plate 14b. A pair of sliders 1
2a is vertically guided by a pair of cylinders 12b vertically fixed to a fixed horizontal support plate 14b, and keeps the horizontal support plate 14a horizontal when the vertical drive shaft 10 is driven. The oscillating means in the device of this embodiment includes a shaft (fulcrum) 5 for supporting the pressing pad 3 and an oscillating driving device for oscillating the pressing pad 3. The swing drive device for swinging the pressure pad 3 includes a swing drive shaft 8, a connecting rod 17, a cam follower roller 9, and the opposite side of the pressure surface 3a of the pressure pad 3, that is,
It comprises an eccentric cam curved surface 3b formed on the upper surface and a spring 15. The oscillating drive shaft 8 that reciprocates in an arc moves the horizontal support plate 14.
The cam follower roller 9 is connected to the swing drive shaft 8 in parallel with the swing drive shaft 8 by a pair of connecting rods 17. Eccentric cam curved surface 3b of pressure pad 3
Is pressed against the cam follower roller 9 by the spring 15, so that the arc movement of the swing drive shaft 8 is converted into the swing movement of the pressure pad 3. In the standby state, the cam follower roller 9 is at the left end of the eccentric cam curved surface 3b,
As a result, the pressure pad 3 is in a state of rising to the right. In this state, when the pressure pad 3 is lowered by the vertical drive device 10, the left end of the film 2 is pressed against the left end of the attachment surface 1 c of the object 1 in a line parallel to the shaft 5. From this position, when the cam follower roller 9 moves in the B direction by the circular motion of the swing drive shaft 8 in the B direction, the spring 15 extends, the right end of the pressure pad 3a descends, and the linear crimping position is attached. The surface 1c moves from the left end to the right end. As a result, the film 2 can be pressure-bonded over the entire attachment surface 1c. After the completion of the pressure bonding, the pressure pad 3 is raised by the vertical drive shaft 10 and the swing drive shaft 8
The cam follower roller 9 moves in the direction A due to the arc movement in the direction, and the pressure pad 3 returns to the waiting state in which the spring 15 rises to the right. The swing drive shaft 8 can be constituted by a servomotor capable of rotating forward and reverse, or a combination of a cylinder and a link mechanism, but is not particularly limited. On the other hand, as the vertical drive shaft 10, an air cylinder, a hydraulic cylinder,
There are combinations of servo motors and ball screws,
There is no particular limitation as long as the stroke, the moving speed, and the pressing force are sufficient.

FIG. 4 shows a front view of another embodiment of the apparatus of the present invention. The holding means for holding the object and the means for supplying the film are not shown. In this embodiment, instead of the swing drive device of the swing means in the device shown in FIG. 3, the drive shaft 40 performing linear motion and the pressure pad holding plate 1 are used.
An oscillating drive device including a slide groove 16 provided in 3 is used. The shaft 5 (fulcrum) supporting the pressure pad 3 supports the center of the pressure pad 3 in this embodiment. The drive shaft 40 that performs linear motion is swingably supported at its upper end by a horizontal support plate 14a and by a shaft 41a parallel to the shaft 5, and has a lower end at the right end opposite to the pressing surface 3a of the pressing pad 3. And axis 5
Are also swingably connected via a shaft 41b parallel to the shaft. The left end on the opposite side of the pressing surface 3a of the pressing pad 3 is
The entire surface and the rear surface are engaged with slide grooves 16 provided in the pressure pad holding plate 13. These slide grooves 16
The present invention stably guides the swing of the pressure pad 3 about the shaft 5 and prevents excessive swing. In the standby state shown in FIG. 4, the drive shaft 40 is retracted, and the right end of the pressure pad 3 is in a state of being raised by the force of the spring 15. In this state, when the pressure pad 3 is lowered by the vertical drive shaft 10, the left end of the film 2 is linearly pressed to the left end of the attaching surface 1 c of the object 1 in the same manner as in the mechanism of FIG. When the drive shaft 40 starts to move forward from this position, the pressure pad starts swinging with the shaft 5 as a fulcrum, and the pressure bonding position moves from the left end to the right end of the bonding surface 1c, and moves to the bonding surface 1c. We can crimp fimur across. After completion of the pressure bonding, the pressure pad 3 rises, the drive shaft 40 retreats, the right end of the pressure pad 3 rises, and returns to the standby state. Drive shaft 40
The vertical drive shaft 10 includes an air cylinder, a hydraulic cylinder, a combination of a servomotor and a ball screw, and the like. If the stroke, the moving speed, and the pressing force are sufficient,
It is not specified.

FIG. 5 shows a front view of another embodiment of the apparatus of the present invention. The means for feeding the film is not shown.
In this embodiment, a pair of drive shafts 40 performing linear motion is used instead of the swing drive device of the swing means in the device shown in FIG.
And 42 are used. The object 1 to be stuck is held by the holding part 26 with the sticking surface 1c exposed upward. Shaft 5 supporting pressure pad 3
The (fulcrum) in this embodiment supports a portion near the center pressing surface 3a of the pressing pad 3. Drive shaft 40 performing linear motion
The upper end is placed on the horizontal support plate 14a, and the shaft 41a
The lower end is provided at the right end of the pressing pad 3 on the opposite side of the pressing surface 3 a from a shaft 4 parallel to the shaft 5.
It is also swingably connected via 1b. The drive shaft 42 performing linear motion has an upper end on the horizontal support plate 14a,
It is swingably supported by a shaft 43 a parallel to the shaft 5, and the lower end is also swingable via a shaft 43 b parallel to the shaft 5 at the left end on the opposite side of the pressing surface 3 a of the pressing pad 3. It is connected to. In the standby state shown in FIG. 4, the drive shaft 40 connected to the right end of the pressure pad 3 is retracted, the drive shaft 42 connected to the left end is advanced, and the right end of the pressure pad 3 is It is in a raised state. In this state,
When the pressure pad 3 is lowered by the vertical drive shaft 10, FIG.
Similarly, the left end of the film 2 is linearly pressure-bonded to the left end of the attachment surface 1c of the object 1 to be attached. When the drive shaft 40 at the right end starts to move forward in harmony with the drive shaft 42 at the left end, the linear crimping position moves from the left end to the right end of the sticking surface, and the film can be crimped over the entire sticking surface. “To move in harmony” means that the plurality of driving units move smoothly while receiving a pressure pad and making linear contact along the application surface without being subjected to an excessive load.
After the completion of the pressure bonding, the pressure pad 3 rises and the drive shaft 40 at the right end is raised.
Recedes, the right end of the pressure pad 3 rises, and returns to the standby state. The drive shafts 40 and 42 include an air cylinder, a hydraulic cylinder, a combination of a servo motor and a ball screw, but are not particularly limited as long as the stroke, the moving speed, and the pressing force are sufficient.

FIG. 6 shows a partial front view of another embodiment of the present invention. The means for feeding the film is not shown. The oscillating means of the device of this aspect has a drive mechanism for oscillating the pressure pad by moving the object to be adhered to move the contact portion. The pressurizing means is the same as the apparatus shown in FIGS. The pressure pad 3 has a fan-shaped cross section in which an arc portion is a pressure surface 3 a formed of an elastic body 4.
The pressure pad 3 is supported by a shaft 5 (a fulcrum) penetrating near the center of the sector so that the pressure surface 3a faces downward and can swing in the arc direction of the sector. The axis 5 is a horizontal support plate 14a
It is horizontally supported by a pair of shaft support plates 44 suspended from the lower surface. A return spring 19 is mounted around the shaft 5. A driving device 37 for linearly moving the object 1 in parallel with and in a direction parallel to the direction in which the pressure pad can swing is connected to the holding portion 26 of the object 1. In the standby state shown in FIG. 6, the pressure pad 3 is raised, and is in the state of A, which is pressed against the stopper 18a attached to the lower surface of the horizontal support plate 14a by the force of the return spring 19. The stoppers 18a and 18b prevent the pressure pad 3 from swinging excessively. The pressing pad 3 is lowered by the vertical drive shaft 10 in the state of A, and linearly presses the film 2 to the left end of the bonding surface 1c of the bonded object 1. When the film 2 is pressed at the left end, the holding unit 26 and the object 1 are moved leftward (in the direction of the arrow) by the driving device 37. With this movement, the pressure pad 3 rotates from the state of A to the state of B due to frictional force. As a result, the pressing surface 3 of the pressing pad 3 comes into linear contact with the entire bonding surface 1c via the film 2 and can press the film. After the completion of the pressure bonding, the pressure pad 3 rises, and A is pressed against the stopper 18a by the force of the return spring 19.
Return to the state. Take out the object 1 in this state,
The holding unit 26 for the object to be stuck is moved back to the right by the drive device 37, and returns to the standby state. Vertical drive shaft 10, holding unit 2
The driving device 37 of No. 6 includes an air cylinder, a hydraulic cylinder, a combination of a servomotor and a ball screw, etc., but is not particularly limited as long as the stroke, the moving speed, and the pressing force are sufficient.

FIG. 7 shows a partial front view of another embodiment of the apparatus of the present invention. The means for feeding the film is not shown. In this aspect, the pressurizing means raises and lowers the object to be stuck held by the holding means, and presses the sticking surface and the pressing surface by partially contacting the pressing surface with the flexible film,
It has a drive mechanism to release the pressurization by separating. The swinging means of the device of this embodiment is the same as that of the device of the embodiment shown in FIG. However, in this embodiment, the horizontal support plate 14a
Has been fixed. The pasted object 1 showing the cross section is
The attachment surface 1c is exposed upward and held by the holding portion 26. A pressing pad 3 having a pressing surface 3a formed of an elastic body 4 is disposed above the object 1 to be bonded, with the pressing surface 3a facing downward. On the lower surface of the holding portion 26, a vertical drive shaft 10 is vertically provided. On the lower surface of the holding portion 26, a pair of sliders 12a
It is vertically installed in parallel with 0. The vertical drive shaft 10 passes through the fixed horizontal support plate 14b below the holding unit 26 and is fixed to the fixed horizontal support plate 14b. A pair of sliders 12a
Are vertically guided by a pair of cylinders 12b vertically fixed to a fixed horizontal support plate 14b, and the vertical drive shaft 10
During the driving, the holding section 26 is kept horizontal. In the standby state shown in FIG. 7, the cam follower roller 9 is
, And the pressure pad 3 is raised rightward by the spring 15. Here, the vertical drive shaft 10
When the object 1 rises, the left end of the film 2 is smoothly moved by the guide roll 35, and
Is linearly pressed to the left end of the bonding surface 1c. When the cam follower roller 9 moves in the B direction along with the circular motion of the swing drive shaft 8 in the B direction, the linear crimping position moves from the left end to the right end of the bonding surface 1c and extends over the entire bonding surface 1c. The film 2 can be pressed. After the crimping is completed, the object 1 to be bonded is
The cam follower roller 9 moves in the direction A by the circular motion of the swing drive shaft 8 in the direction A, and the pressure pad 3 returns to the standby state in which the pressure pad 3 rises to the right by the spring 15. FIG.
Is an example in which the eccentric cam curved surface and the cam follower roller shown in FIG. 3 are used as the swing mechanism, but the method shown in FIGS.

According to the film sticking apparatus of the present invention,
For example, a film can be attached to an object to be attached as follows. First, an object to be stuck is fixed at a predetermined position of the device. Next, the film is supplied between the adherend and the pressure pad. The pressing pad descends with one end of the pressing surface raised, and the other end of the pressing surface presses the film to the object to be adhered. Here, the film at the crimping end is attached to the object to be attached. Next, the drive pad that swings the pressure pad causes the pressure pad to gradually contact the center and the opposite end linearly from the contact end. With this operation, the film is attached from one end to the other end.

[0026]

Embodiment 1 An embodiment of the present invention will be described below with reference to the drawings.
An object having the shape shown in FIGS. 1 and 2 is used. FIG. 8 shows a partial front view of the apparatus of this embodiment. Holder 26
And the to-be-adhered object 1 showed the cross section. FIG. 8 is a front view of the film sticking section, and FIG. 5 is a partially enlarged view of the pressurizing means and the swinging means of the apparatus of FIG. Pasted object 1
Are fixed to the holding section 26 as shown in FIG. As shown in FIG. 7, the object 1 is attached to a frame 30.
The object-to-be-attached object holding portion 26 having a concave portion corresponding to the external shape of the object to be attached formed on the upper surface is received and fixed. The attachment surface 1c of the object 1 is exposed upward. A pressure pad 3 is provided above the object 1 to be attached.
The pressing surface 3a formed of the elastic body 4 faces down and the pressing surface 3a is heated to a surface temperature of 100 ° C. and is on standby. The curvature of the pressing surface 3a in the swing direction is smaller than the curvature of the bonding surface 1c. The fixed horizontal support plate 14b is fixed to the frame 31. Above it, the pressure pad 3 is heated to a surface temperature of 100 ° C. and is on standby. The pressure pad 3 is supported by the pressure pad holding plate 13 via the shaft 5 (fulcrum) as described in FIG. The pressure pad holding plate 13 is connected to the vertical drive shaft 10 via a horizontal support plate 14a.
It is connected to the slider 12a. The fixed end of the vertical drive shaft 10 and the fixed end of the cylinder 12b for guiding the slider 12a are fixed to the frame 31 via a fixed horizontal support plate 14b. Therefore, the shaft 5 (fulcrum) can only move up and down.

Next, the operation of the pressure pad 3 will be described with reference to FIGS. In the standby state shown in FIGS. 5 and 8, the film 2 with the support film is supplied from the feeding roll 23. The film for attaching the film 2 with a support film is a photosensitive film and is thermoplastic and adheres well by heating. A cut is made in a predetermined position on the film, but no cut is made in the support film. In this state, the tension of the film 2 with a support film is reduced. When pressure is applied to the hydraulic cylinder, which is the vertical drive shaft (hydraulic cylinder) 10, the left end of the pressing surface 3a of the pressing pad 3 comes into contact with the left end of the bonding surface 1c of the material 1 to be bonded, and the film crimping starts. I do. At the same time, pressure is applied to the right drive shaft 40, and the crimping portion moves from the left end to the center and from the center to the right end of the pressing surface 3a and the bonding surface 1c, and the bonding proceeds. When the pressure bonding is completed over the entire bonding surface, the pressure of the vertical drive shaft (hydraulic cylinder) 10 is released, and the pressure pad 3 is raised. When tension is applied to the support film, the portion between the cuts in the film is separated from the support film, and the attachment is completed. After the film is peeled off, only the support film is wound around the support film take-up roll 24.

Embodiment 2 Next, as one embodiment of the present invention, a case where the apparatus is configured as an in-line apparatus will be described. FIG. 9 is a plan view showing a unit for holding an object to be stuck of the apparatus in the present embodiment, and FIG. 10 is a partial front view of the apparatus in the present embodiment.
In both figures, only the main part is shown, and the end part is omitted. As the pressurizing means and the oscillating means, those having the mode shown in Example 1 were used. In FIG. 10, cross sections are shown for the object 1 to be attached, the holding portion 26, and the movable alignment member 25. As shown in FIG. 9, the configuration of the entire apparatus is
Receiving part 20 of pasting thing 1 and pasting part 2
1. A payout section 22 for the object 1 to be pasted.
The article 1 to be pasted into the receiving section 20 is sent to the pasting section 21 by the transport roller 36. Here, the object 1 is positioned by the movable alignment member 25 and is received and held by the holding portion 26. The film to be used 2 is the same film with a support film as in Example 1.
The pressure pad 3 is heated to 100 ° C.

First, the support film take-up roll 24 is rotated, and the guide roll 35 and y
The film 2 with the support film is supplied via the tension control roll 29 at the position. The tension control roll 29 can reciprocate in the direction of the arrow and is fixed at the x or y position. The film of the film 2 with the support film supplied from the feeding roll 23 includes:
A cut is made at a fixed size position by the film cutters 27 and 28 before the object 1 to be stuck. When the portion of the film separated by the cut is supplied to the upper portion of the object 1, the tension control roll 29
Moves to the x position, and the tension of the film 2 with the support film decreases. Subsequently, the pressure pad 3 heated to 100 ° C. is lowered, and the film is pressed in the same manner as in Example 1. Next, the pressure pad 3 is raised. When the position of the tension control 29 is moved from x to y to increase the tension, the support film is raised, and the support film is wound, the portion between the cuts in the film is peeled off from the support film, and the attachment is completed. The pasted object 1 on which the pasting is completed is sent out to the payout unit 22 and is carried out to the next device. The thus attached film was clean without bubbles and wrinkles.

[0030]

As described above, according to the present invention, the attachment of a film to the surface of an object to be attached having a curved surface or a side wall, which was impossible with the conventional apparatus, causes bubbles and wrinkles. It is possible to provide a film sticking device which can be efficiently performed without any problem.

Further, according to the technical idea of the present invention, not only the horizontal type in which the object to be pasted is placed sideways as in the present invention,
It is also possible to easily provide a vertical device for holding an object to be stuck and a device in which a pressure pad is arranged on the lower surface.

[Brief description of the drawings]

FIG. 1 is a side view of an example of an adherend having a curved surface and a side wall to which a film is to be adhered by the apparatus of the present invention.

FIG. 2 is a plan view of the object to be pasted in FIG. 1;

FIG. 3 is a partial front view of one embodiment of the device of the present invention.

FIG. 4 is a partial front view of one embodiment of the device of the present invention.

FIG. 5 is a partial front view of one embodiment of the device of the present invention.

FIG. 6 is a partial front view of one embodiment of the device of the present invention.

FIG. 7 is a partial front view of one embodiment of the device of the present invention.

FIG. 8 is a partial front view of one embodiment of the device of the present invention.

FIG. 9 is a plan view showing a part of an in-line type automatic apparatus which is one embodiment of the apparatus of the present invention.

FIG. 10 is a schematic front view of the device shown in FIG. 9 with a part omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 to-be-attached object 1a Curved surface 1b Side wall 1c Attached surface 2 Film 3 Pressing pad 3a Pressing surface 3b Eccentric cam curved surface 4 Elastic body 5 Shaft (fulcrum) 8 Swing drive shaft 9 Cam follower roller 10 Vertical drive shaft 12a Slider 12b Cylinder DESCRIPTION OF SYMBOLS 13 Pressing pad holding plate 14a Horizontal support plate 14b Fixed horizontal support plate 15 Spring 16 Slide groove 17 Connecting rod 18a, 18b Stopper 19 Return spring 20 Receiving part 21 Pasting part 22 Payout part 23 Feeding roll 24 Supporting film take-up roll 25 Alignment member 26 Holder 27, 28 Film cutter 29 Tension control roll 30, 31 Frame 35 Guide roll 36 Transport roller 37 Drive unit 40 Drive shaft 41a, 41b shaft 42 Drive shaft 43a, 43b shaft 44 Axis support plate

Continued on the front page (72) Inventor Atsushi Seki 5-1-1, Motomiyacho, Hitachi City, Ibaraki Prefecture Within Hitachi Chemical Techno Plant Co., Ltd. (72) Inventor Tsuyoshi Nojiri 4-3-1, Higashicho, Hitachi City, Ibaraki Prefecture Hitachi Chemical F-term in Ibaraki Research Laboratory (reference) 4F211 AA45 AD05 AD08 AG03 AG07 AH33 SA07 SC03 SD01 SD18 SH19 SJ01 SJ13 SJ15 SJ23 SJ29 SP03 SP21

Claims (6)

[Claims] 1. An apparatus for attaching a flexible film, comprising: holding means for holding an object to be attached; a pressure pad having a curved pressing surface; and a flexible pad between the pressure pad and the object to be attached. The means for supplying the film, the pressing surface of the pressing pad and the bonding surface of the held object are brought close to each other with the flexible film interposed therebetween and partially contacted with each other, and pressurized and separated. Film sticking, comprising: a pressurizing means for canceling the pressure, and a rocking means for rocking the pressure pad to move the contact portion over the entire surface to be bonded when pressurized by the pressure means. apparatus. 2. A pressing surface of the pressing pad is formed of an elastic body, and the swinging means is a line between the pressing surface of the pressing pad and a surface of the object to be bonded with a flexible film interposed therebetween. The linear contact portion is moved over the entire surface of the application surface by swinging the pressure pad.
The film sticking apparatus as described in the above. 3. The pressure pad is heatable, and the pressure means raises and lowers the pressure pad to bring the pressure surface and the application surface into partial contact with each other via a flexible film. Having a drive mechanism for pressing and separating to release the pressurization, and a swinging means having a drive mechanism for swinging a pressure pad and moving a contact portion in a state in which an adherend is fixed. The film sticking apparatus according to claim 1 or 2, wherein 4. The pressure pad can be heated, and the pressure means raises and lowers the pressure pad, and brings the pressure surface and the application surface into partial contact with each other via a flexible film. A drive mechanism for pressing and separating to release the pressurization, and the swinging means has a drive mechanism for swinging the pressure pad by moving the adherend to move the contact portion. The film sticking apparatus according to claim 1. 5. A driving device in which the pressure pad is heatable, and the pressure means is a driving device mounted on the side opposite to the pressure surface of the pressure pad. A drive device that presses a part of the mounting surface through a flexible film and pressurizes the part, separates the part from the part, and releases the part, and the oscillating means is a shaft attached to the pressing pad and 2. The device according to claim 1, further comprising: a shaft for supporting the pressure pad, and a rocking drive device mounted on a side of the pressure pad opposite to the pressing surface, and configured to rock the pressure pad about the shaft as a fulcrum to move a contact portion. 3. The film sticking apparatus according to 2. 6. The pressure pad is heatable, and the pressing means raises and lowers the object held by the holding means, and connects the bonding surface and the pressing surface via a flexible film. A driving mechanism for partially pressing and pressurizing, and for separating and releasing pressure, wherein the oscillating means includes a driving mechanism for oscillating a pressure pad to move a contact portion. 3. The film sticking apparatus according to 1 or 2.