JP6787251B2 - Manufacturing method of film decorative parts and their sticking equipment - Google Patents

Description

The present invention relates to a method for manufacturing a film decorative part formed by attaching a heat-softened decorative film material to the surface of a base material by an atmospheric pressure difference, and an attaching device thereof.

Generally, as a method for manufacturing a film decorative part, a method is known in which a heat-softened decorative film material is attached to the surface of a base material by an atmospheric pressure difference. However, in that method, when the heat-softened decorative film material hangs down due to its own weight and comes into contact with the surface of the base material, the decorative film material bends while waving, so that the decorative film material is decorated after being attached to the base material. There is a problem that the film material tends to have poor appearance such as shock lines and air residue.

Therefore, for example, in Patent Document 1, as shown in FIG. 11, an upper chamber 101a and a lower chamber 101b that enable joining and separation in the vertical direction, a vacuum circuit and an air circuit 104 connected to each chamber, and an air circuit 104. The vacuum tank 105 and the pneumatic tank 106 connected to the circuit, the heater 107 mounted in the upper chamber 101a, the table 108 arranged so as to be able to move up and down in the lower chamber 101b, and the upper chamber 101a are moved up and down. In the vacuum forming device 100 provided with the chamber drive device 101c and the table drive device 101d for raising and lowering the table 108, the amount of deformation (the amount of sagging under its own weight) of the decorative film material 103 heated and softened by the heat of the heater 107 is increased. A method of correcting by the difference pressure between the vacuum pressure in the chamber 101a and the vacuum pressure in the lower chamber 101b is disclosed.

Further, for example, in Patent Document 2, as shown in FIGS. 12 and 13, the molding base material 203 is arranged on the suction table 202 provided in the base material side chamber 201, and the molding base material 203 is arranged with respect to the molding base material 203. The decorative sheet 204 is set in a predetermined manner, and the rubber-like elastic film 206 provided on the sheet-side chamber 205 is arranged to face the decorative sheet 204, and is between the sheet-side chamber 205 and the base material-side chamber 201. By heating the rubber-like elastic film 206 with the heater 208, the decorative sheet 204 is pressed against the outer surface of the molded base material 203 by the rubber-like elastic film 206, and is softened and adhered. In the vacuum press laminating molding apparatus, the clamping means 207 for detachably holding the peripheral edge portion of the decorative sheet 204 is provided between the base material side chamber 201 and the sheet side chamber 205. A featured vacuum press laminate molding apparatus 200 is disclosed.

According to the vacuum press laminated molding apparatus 200, the decorative sheet 204 is arranged apart from the molding base film 203 in a state where the peripheral edge portion thereof is held by the clamping means 207 and has substantially no slack (FIG. 13 (a)). )) Under such circumstances, pressurization of the sheet side chamber 205 and / or vacuum suction of the base material side chamber 201 is performed, a pressing force by the rubber-like elastic film 206 is applied to the decorative sheet 204, and the heater 208. The decorative sheet 204 is heated via the rubber-like elastic film 206 (FIG. 13 (b)). As a result, the decorative sheet 204 is softened and stretched together with the rubber-like elastic film 206 and attached to the molded base material 203, so that it is possible to reduce the appearance defect due to the hanging of the heat-softened decorative sheet 204 due to its own weight.

JP-A-2002-67137 Japanese Unexamined Patent Publication No. 5-293896

However, in the method for manufacturing a film decorative part and the attachment device thereof described in Patent Documents 1 and 2, the lower chamber (base material side chamber) and the upper chamber (sheet side chamber) are made of a base material (molded base material). ) It has a chamber structure that accommodates the whole by sandwiching it from above and below. Therefore, when the film decorative parts become large, the chamber itself has to be made larger than that, and it is necessary to have a huge chamber structure having rigidity that can withstand the atmospheric pressure difference, and as a result, the equipment cost becomes excessive. There was a problem of becoming. Therefore, it has been difficult to adopt a method of attaching a decorative film material to a large part by a pressure difference.

The present invention has been made to solve the above problems, and it is possible to easily reduce appearance defects due to sagging due to the weight of the heat-softened decorative film material, and to provide a decorative film material for large parts. An object of the present invention is to provide a method for manufacturing a film decorative part that can be easily attached due to an atmospheric pressure difference, and an apparatus for attaching the film decorative part.

In order to solve the above problems, the method for manufacturing a film decorative part and a sticking device thereof according to the present invention have the following configurations.
(1) A method for manufacturing a film decorative part formed by attaching a heat-softened decorative film material to the surface of a base material by an atmospheric pressure difference.
After heating only the outer peripheral portion of the decorative film material and attaching it to the gantry in contact with the base material, the inner peripheral portion of the decorative film material is heated and softened while vacuum sucking from the lower surface of the pedestal. It is characterized in that it is attached to the surface of the base material.

In the present invention, only the outer peripheral portion of the decorative film material is heated and attached to the gantry in contact with the base material, and then the inner peripheral portion of the decorative film material is heated and softened while vacuum sucking from the lower surface of the pedestal. Since it is attached to the surface of the base material, the decorative film material is preformed along the surface of the base material before the inner peripheral portion of the decorative film material is heated and softened, and then the decorative film is formed. When the inner peripheral portion of the material is heat-softened, the preformed decorative film material can be brought into contact with the surface of the base material from a state close to the surface of the base material and attached. Therefore, it is possible to easily reduce the appearance defect due to the hanging of the decorative film material due to its own weight.

Further, before the inner peripheral portion of the decorative film material is heated and softened while being vacuum-sucked from the lower surface of the gantry and attached to the surface of the base material, only the outer peripheral portion of the decorative film material is heated to hit the base material. Since it is attached to the pedestal in contact with the pedestal, the space formed between the inner peripheral portion of the preformed decorative film material and the pedestal can be vacuum-sucked in a sealed state. Therefore, the conventional chamber structure in which the lower chamber (base material side chamber) and the upper chamber (seat side chamber) sandwich and accommodate the entire base material (molded base material) from above and below becomes unnecessary, and vacuum suction is simplified. be able to. Therefore, even if the size of the film decorative part becomes large, it is sufficient to provide a pedestal in contact with the base material and a suction means for vacuum suction from the lower surface of the pedestal, so that the equipment cost can be reduced and the large part can be used. It becomes easy to attach the decorative film material due to the difference in atmospheric pressure.

Therefore, according to the present invention, it is possible to easily reduce the appearance defect due to the hanging of the heat-softened decorative film material due to its own weight, and to add a film that can be easily attached to a large part due to the pressure difference of the decorative film material. A method of manufacturing a decorative part can be provided.

(2) In the method for manufacturing a film decorative part described in (1),
The decorative film material is characterized by having a hot melt type adhesive layer on the back surface of the decorative layer.

In the present invention, since the decorative film material is provided with a hot melt type adhesive layer on the back surface of the decorative layer, only the outer peripheral portion of the decorative film material is heated to a temperature higher than room temperature to hit the gantry. The hot-melt adhesive layer on the outer peripheral portion is softened just by touching the outer peripheral portion, and only the outer peripheral portion of the decorative film material can be attached to the gantry. Therefore, it is possible to more easily maintain the sealed state of the space formed between the inner peripheral portion of the decorative film material and the gantry. The temperature at which the hot melt type adhesive layer exhibits adhesive performance is preferably about 40 to 80 ° C.

(3) A sticking device used in the method for manufacturing a film decorative part according to (1) or (2).
The gantry, a holding frame with a heater having a first heater portion and pressing the outer peripheral portion of the decorative film material against the gantry to heat it, a suction means for vacuum suction from the lower surface of the gantry, and the base material. It is provided with a second heater portion which is arranged above the above and heats the inner peripheral portion of the decorative film material from above.
The first heater portion was generated by the pressing frame body with a heater while the outer peripheral portion of the decorative film material was pressed against the gantry, and the outer peripheral portion of the decorative film material was attached to the gantry. Later, the suction means is operated to suck the vacuum, and the second heater portion is heated to attach the inner peripheral portion of the decorative film material to the surface of the base material.

In the present invention, a gantry, a holding frame with a heater having a first heater portion and pressing the outer peripheral portion of the decorative film material against the gantry to heat it, a suction means for vacuum suction from the lower surface of the gantry, and a base material. A second heater portion that is arranged above the decorative film material and heats the inner peripheral portion of the decorative film material from above is provided, and a holding frame with a heater presses the outer peripheral portion of the decorative film material against the gantry. After the heater part is heated and the outer peripheral portion of the decorative film material is attached to the gantry, the suction means is operated to vacuum suction, and the second heater portion is heated to heat the inner peripheral portion of the decorative film material. Since it is attached to the surface of the base material, the decorative film material is preformed along the surface of the base material before the inner peripheral portion of the decorative film material is heated and softened, and the preformed decorative film is formed. The outer peripheral portion of the material can be sealed on a frame in contact with the base material. Therefore, when the inner peripheral portion of the decorative film material is heated and softened, the inner peripheral portion of the decorative film material comes into contact with the surface of the base material from a state of being close to the surface of the base material. It is possible to easily reduce the appearance defect due to the hanging due to the weight of the film.

Further, in a state where the outer peripheral portion of the decorative film material and the gantry are sealed, vacuum suction is performed from the lower surface of the gantry to generate heat in the second heater portion, and the inner peripheral portion of the decorative film material is the surface of the base material. Since it is attached to the lower chamber (base material side chamber) and the upper chamber (seat side chamber), the conventional chamber structure in which the entire base material (molded base material) is sandwiched and accommodated from above and below becomes unnecessary, and vacuum suction is performed. The structure can be simplified. Therefore, even if the size of the film decorative part becomes large, it is sufficient to provide a pedestal in contact with the base material and a suction means for vacuum suction from the lower surface of the pedestal, so that the equipment cost can be reduced and the large parts can be used. It becomes easy to attach the decorative film material due to the pressure difference.

Therefore, according to the present invention, it is possible to easily reduce the appearance defect due to the hanging of the heat-softened decorative film material due to its own weight, and to add a film that can be easily attached to a large part due to the pressure difference of the decorative film material. A sticking device used in a method for manufacturing a decorative part can be provided.

(4) In the attachment device described in (3),
The second heater portion is characterized by being made of a flexible planar heating element.

In the present invention, since the second heater portion is made of a flexible planar heating element, the pressing frame with a heater presses the outer peripheral portion of the decorative film material against the gantry to press the surface of the base material. It is possible to generate heat in a state where the inner peripheral portion of the decorative film material preformed along the above is curved along the second heater portion. Therefore, the inner peripheral portion of the decorative film material is heated and softened substantially uniformly, and the inner peripheral portion of the decorative film material can be molded under a substantially uniform elongation rate and adhered to the surface of the base material. Therefore, the appearance defect of the decorative film material can be further reduced.

(5) In the attachment device described in (4),
The outer peripheral edge of the second heater portion is connected to the inner peripheral edge of the holding frame body with a heater.

In the present invention, since the outer peripheral edge of the second heater portion is connected to the inner peripheral edge of the holding frame body with a heater, the holding frame body with a heater presses the outer peripheral portion of the decorative film material against the gantry. The heat can be generated in a state where the second heater portion is in close contact with the inner peripheral portion of the decorative film material preformed along the surface of the base material. Therefore, the inner peripheral portion of the decorative film material can be heated and softened at a more uniform temperature. Further, since the inner peripheral portion of the decorative film material is heated in close contact with the second heater portion made of a flexible planar heating element, the inner peripheral portion of the decorative film material is locally stretched. Can be suppressed. Therefore, the appearance defect of the decorative film material can be further reduced.

According to the present invention, it is possible to easily reduce appearance defects due to hanging of the heat-softened decorative film material due to its own weight, and it is easy to attach the decorative film material to a large part due to the pressure difference of the decorative film material. Can be provided and a sticking device thereof.

It is a schematic perspective view of the sticking apparatus (1st Example) used in the manufacturing method of the film decorative part which concerns on embodiment of this invention. It is sectional drawing of the decorative film material shown in FIG. It is a process sectional view of the manufacturing method of the film decorative part using the sticking apparatus shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. It is a process sectional view which shows the modification of the manufacturing method of the film decorative part shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. It is a flowchart which shows the manufacturing method which concerns on this Embodiment. It is a schematic perspective view of the sticking apparatus (second embodiment) used in the manufacturing method of the film decorative part which concerns on embodiment of this invention. It is a process sectional view of the manufacturing method of the film decorative part using the sticking apparatus shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. It is a process sectional view which shows the modification of the manufacturing method of the film decorative part shown in FIG. 7. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. It is a perspective view which shows the example of the film decorative part formed by this manufacturing method. 9 is a cross-sectional view taken along the line AA shown in FIG. It is a process sectional view of the manufacturing method of the film decorative part described in Patent Document 1. It is sectional drawing of the vacuum press laminated molding apparatus used in the manufacturing method of the film decorative part described in Patent Document 2. It is a process sectional view of the vacuum press laminated molding apparatus shown in FIG. (A) shows a cross-sectional view in a state where the peripheral edge portion of the decorative sheet is held by the clamping means and is arranged away from the molded base material in a state where there is substantially no slack, and (b) is a cross-sectional view in a state where the peripheral portion is arranged apart from the molded base material by the heater. A cross-sectional view of a state in which a decorative sheet is heated via a rubber-like elastic film and attached to a molded base material is shown.

Next, a method for manufacturing a film decorative part and a sticking device thereof according to an embodiment of the present invention will be described in detail with reference to the drawings. First, a sticking device (first embodiment) used in the method for manufacturing a film decorative part according to the present embodiment will be described, and then a method for manufacturing a film decorative part using the sticking device will be described. Next, the sticking device (second embodiment) used in the method for manufacturing the film decorative parts according to the present embodiment will be described focusing on the differences from the first embodiment.

<First Example>
First, a sticking device (first embodiment) used in the method for manufacturing the film decorative parts will be described, and then FIGS. 1 to 5 will be shown regarding the method for manufacturing the film decorative parts using the sticking device. It will be described using. FIG. 1 shows a schematic perspective view of a sticking device (first embodiment) used in the method for manufacturing a film decorative part according to an embodiment of the present invention. FIG. 2 shows a cross-sectional view of the decorative film material shown in FIG. FIG. 3 shows a process sectional view of a method for manufacturing a film decorative part using the sticking device shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. FIG. 4 shows a process cross-sectional view showing a modified example of the method for manufacturing the film decorative part shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. FIG. 5 shows a flowchart showing the manufacturing method according to the present embodiment.

As shown in FIGS. 1 to 4, the pasting devices (first embodiment) 20 and 20B used in the method for manufacturing the present film decorative parts include the gantry 3, 3B and the first heater portion 41. A holding frame 4 with a heater that presses the outer peripheral portion 11 of the decorative film material 1 against the pedestals 3 and 3B to heat it, a suction means 5 that evacuates from the lower surfaces 31 and 31B of the pedestals 3 and 3B, and above the base material 2. A second heater portion 6 for heating the inner peripheral portion 12 of the decorative film material 1 from above is provided. Then, the pressing frame body 4 with a heater heats the first heater portion 41 in a state where the outer peripheral portion 11 of the decorative film material 1 is pressed against the pedestals 3 and 3B, and the outer peripheral portion 11 of the decorative film material 1 is pedestaled. After being attached to 3 and 3B, the suction means 5 is operated to perform vacuum suction, and the second heater portion 6 is heated to attach the inner peripheral portion 12 of the decorative film material 1 to the surface of the base material 2. It is characterized by letting it.

Further, the holding frame body 4 with a heater is formed in a frame shape so that the outer peripheral portion 11 of the decorative film material 1 is brought into contact with the gantry 3 and 3B over the entire circumference with a predetermined width. A first heater portion 41 made of a heating wire is built in the holding frame body 4 with a heater. The holding frame body 4 with a heater is connected to a pressure cylinder (not shown), and by moving in the direction of the arrow F, the outer peripheral portion 11 of the decorative film material 1 can be pressed against the gantry 3 and 3B.

The presser frame body 4 with a heater presses the outer peripheral portion 11 of the decorative film material 1 against the pedestals 3 and 3B, so that the inner peripheral portion 12 of the decorative film material 1 follows the surfaces of the base materials 2 and 2B. At that time, in order to adjust the pressing amount of the pressing frame body 4 with a heater so that large wrinkles and creases do not occur on the inner peripheral portion 12 of the decorative film material 1, the gantry 3 and A spacer stand may be provided on the contact surface of 3B.

Further, the gantry 3 and 3B can be used properly as follows according to the size of the base materials 2 and 2B. When the base material 2 is large, it is preferable that the inner peripheral edge 32 of the flat plate-shaped frame 3 is formed so as to be in airtight contact with the outer peripheral edge 21 of the base material 2 (see FIG. 3). When the base material 2B is small, it is preferable that the upper surface 33B of the flat plate-shaped frame 3B is formed so as to be in contact with the lower surface 22B of the base material 2B (see FIG. 4). The base materials 2 and 2B may be made of resin or steel plate.

Further, the suction means 5 is connected to the lower surface 31 of the gantry 3 and is arranged in the vicinity of the outer peripheral edge 21 of the base material 2. A vacuum suction pump (not shown) is connected to the suction means 5. The second heater portion 6 is preferably made of a flexible planar heating element. For example, a planar heating element formed by entwining a fibrous heating element (for example, ceramic fiber or carbon fiber) with an elastic body of a stretchable rubber-based member corresponds to this. The pressing frame body 4 with a heater presses the outer peripheral portion 11 of the decorative film material 1 against the pedestals 3 and 3B, so that the decorative film material 1 is preformed along the surfaces of the base materials 2 and 2B. It is preferable to generate heat in a state where the second heater portion 6 is curved in the direction of the arrow P so as to follow it.

Here, as shown in FIG. 2, the decorative film material 1 is provided with a hot-melt type adhesive layer 1b on the back surface of the decorative layer 1a, which is a design portion. A transparent top layer 1c is formed on the upper surface of the decorative layer 1a. The hot-melt type adhesive layer 1b is composed of a thermoplastic base resin, a tackifier, wax and the like, and exhibits adhesive performance by heating to a temperature higher than room temperature. The temperature at which the hot melt type adhesive layer 1b exhibits adhesive performance is preferably about 40 to 80 ° C.

Next, a method of manufacturing the film decorative parts using the pasting devices 20 and 20B will be described with reference to FIGS. 3, 4, and 5. This method is a method for manufacturing a film decorative part formed by attaching a heat-softened decorative film material 1 to the surfaces of the base materials 2 and 2B by a pressure difference, and is an outer peripheral portion of the decorative film material 1. After heating only 11 and attaching it to the pedestals 3 and 3B in contact with the base materials 2 and 2B, the inner peripheral portion 12 of the decorative film material 1 is sucked by vacuum from the lower surfaces 31 and 31B of the gantry 3 and 3B. Is heat-softened and adhered to the surfaces of the base materials 2 and 2B. Specifically, the procedure is as follows.

First, the base materials 2 and 2B are set on the gantry 3 and 3B (step: S1). The outer peripheral edge 21 of the base material 2 and the inner peripheral edge 32 of the gantry 3 are brought into airtight contact with each other so as not to form a gap (see FIG. 3). Further, the base materials 2 and 2B are arranged so that the region to which the decorative film material 1 is attached protrudes upward from the gantry 3 and 3B (see FIGS. 3 and 4).

Next, the presser frame body 4 with a heater presses the outer peripheral portion 11 of the decorative film material 1 against the gantry 3 and 3B so that the decorative film material 1 is kept at room temperature along the surfaces of the base materials 2 and 2B. Preform (step: S2). The inner peripheral portion 12 of the decorative film material 1 is formed in a convex curved shape while being in contact with the convex portions of the base materials 2 and 2B, and is held in a state of being separated from the surfaces of the base materials 2 and 2B.

Next, the first heater portion 41 is heated to generate heat, and the outer peripheral portion 11 of the decorative film material 1 and the gantry 3 and 3B are attached to each other (step: S3). When the first heater portion 41 generates heat so as to have a temperature higher than room temperature (about 40 to 80 ° C.), the hot melt type adhesive layer 1b on the outer peripheral portion 11 of the decorative film material 1 exhibits adhesive performance. The outer peripheral portion 11 of the decorative film material 1 and the gantry 3 and 3B are attached to each other. As a result, the space between the inner peripheral portion 12 of the decorative film material 1 and the gantry 3 and 3B is maintained in a sealed state.

Next, before the heat generation of the first heater unit 41 is stopped and the heat generation of the second heater unit 6 is generated, the suction means 5 is operated to be between the inner peripheral portion 12 of the decorative film material 1 and the gantry 3 and 3B. The space formed in is gradually depressurized (step: S4). As a result, the inner peripheral portion 12 of the decorative film material 1 is preformed so as to be further along the surface of the base materials 2 and 2B. By setting the operation timing of the suction means 5 ahead of the heat generation timing of the second heater portion 6, it is possible to prevent the decorative film material 1 from hanging down during preforming. Therefore, the operation timing of the suction means 5 may be matched with the heat generation timing of the second heater portion 6 as long as the sagging during preforming does not occur.

Next, the suction means 5 is continuously operated, and the space formed between the inner peripheral portion 12 of the decorative film material 1 and the gantry 3 and 3B is gradually depressurized while the second heater portion 6 is depressurized. Heat is generated to heat and soften the inner peripheral portion 12 of the decorative film material 1 (step: S5). It is preferable that the second heater portion 6 generates heat in a state of being curved along the inner peripheral portion 12 of the preformed decorative film material 1. The temperature at which the second heater portion 6 generates heat is set in consideration of the elongation of the decorative film material 1 and the like. Further, when the second heater unit 6 generates heat, the heat generation of the first heater unit 41 is stopped.

Next, while increasing the degree of decompression of the space formed between the inner peripheral portion 12 of the decorative film material 1 and the pedestals 3 and 3B, the decorative film material 1 is continuously heated and softened, and the decorative film material 1 is continuously heated and softened. After the inner peripheral portion 12 of the above is brought into close contact with the side surface of the base material, heating and depressurization are completed (step: S6). By bending the second heater portion 6, it is possible to prevent the inner peripheral portion 12 of the decorative film material 1 from hanging down locally. After the inner peripheral portion 12 of the decorative film material 1 is attached to the surfaces of the base materials 2 and 2B, the unnecessary portion of the decorative film material 1 is cut.

<Second Example>
Next, the sticking apparatus (second embodiment) used in the method for manufacturing the film decorative parts according to the present embodiment will be described with reference to FIGS. 6 to 8 focusing on the differences from the first embodiment. To do. FIG. 6 shows a schematic perspective view of a sticking device (second embodiment) used in the method for manufacturing a film decorative part according to an embodiment of the present invention. FIG. 7 shows a process sectional view of a method for manufacturing a film decorative part using the sticking device shown in FIG. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown. FIG. 8 shows a process sectional view showing a modified example of the method for manufacturing the film decorative part shown in FIG. 7. (A) shows a cross-sectional view of a process in which a holding frame with a heater presses the outer peripheral portion of the decorative film material against a gantry to heat the decorative film material, and (b) heats and softens the decorative film material while reducing the pressure. , The cross-sectional view of the process of sticking to a base material is shown.

As shown in FIGS. 6 to 8, the pasting devices 20C and 20D (second embodiment) used in the method for manufacturing the decorative parts of the film have a frame 3C and 3D and a first heater portion 41. A holding frame 4 with a heater that presses the outer peripheral portion 11 of the decorative film material 1 against the gantry 3C and 3D to heat it, a suction means 5 that sucks vacuum from the lower surfaces 31C and 31D of the gantry 3C and 3D, and base materials 2C and 2D. It is provided with second heater portions 6C and 6D which are arranged above the above and heat the inner peripheral portion 12 of the decorative film material 1 from above.

Then, the holding frame body 4 with a heater heats the first heater portion 41 in a state where the outer peripheral portion 11 of the decorative film material 1 is pressed against the gantry 3C and 3D, and the outer peripheral portion 11 of the decorative film material 1 is pedestaled. After being attached to 3C and 3D, the suction means 5 is operated to perform vacuum suction, and the second heater portions 6C and 6D are heated to heat the inner peripheral portion 12 of the decorative film material 1 to the base materials 2C and 2D. It is characterized by being attached to the surface. Further, the second heater portions 6C and 6D are preferably made of a flexible planar heating element. The above configuration is common to the first embodiment. However, the outer peripheral edges of the second heater portions 6C and 6D are different from the first embodiment in that they are connected to the inner peripheral edges of the holding frame body 4 with a heater. Here, the above differences will be mainly described.

That is, since the outer peripheral edges of the second heater portions 6C and 6D are connected to the inner peripheral edge of the holding frame body 4 with a heater, the holding frame body 4 with a heater mounts the outer peripheral portion 11 of the decorative film material 1 on the gantry 3C. When pressed against 3D, at the same time, the second heater portions 6C and 6D made of a flexible planar heating element press the inner peripheral portion 12 of the decorative film material 1. Therefore, the second heater portion 6 comes into close contact with the inner peripheral portion 12 of the decorative film material 1 preformed along the surfaces of the base materials 2 and 2B. The second heater portions 6C and 6D are brought into close contact with the inner peripheral portion 12 of the decorative film material 1 to prevent wrinkles and creases from occurring in the preformed decorative film material 1.

Further, the second heater portions 6C and 6D generate heat in a state of being in close contact with the inner peripheral portion 12 of the preformed decorative film material 1, so that the inner peripheral portion 12 of the decorative film material 1 is made more uniform. It is softened by heating at a temperature to suppress the local elongation of the inner peripheral portion 12 of the decorative film material 1. Further, since the second heater portions 6C and 6D have elasticity, the suction force of the suction means 5 that brings the inner peripheral portion 12 of the decorative film material 1 into close contact with the surfaces of the base materials 2C and 2D can be complemented. it can. Thereby, the vacuum suction pump connected to the suction means 5 can be miniaturized.

<Effect>
As described in detail above, according to the method for manufacturing a film decorative part according to the present embodiment, only the outer peripheral portion 11 of the decorative film material 1 is heated to hit the base materials 2, 2B, 2C, and 2D. After being attached to the pedestals 3, 3B, 3C, and 3D in contact with each other, the inner peripheral portion 12 of the decorative film material 1 is heated and softened while sucking vacuum from the lower surfaces of the gantry 3, 3B, 3C, and 3D to soften the base material 2. Since it is attached to the surfaces of 2, 2B, 2C, and 2D, the decorative film material 1 is applied to the surfaces of the base materials 2, 2B, 2C, and 2D before the inner peripheral portion 12 of the decorative film material 1 is heated and softened. Pre-molded along the surface, and then when the inner peripheral portion 12 of the decorative film material 1 is heat-softened, the decorative film material 1 is formed from a state in which it is close to the surfaces of the base materials 2, 2B, 2C, and 2D. The materials 2, 2B, 2C, and 2D can be brought into contact with each other and attached. Therefore, it is possible to easily reduce the appearance defect due to the hanging of the decorative film material 1 due to its own weight.

Further, before the inner peripheral portion 12 of the decorative film material 1 is heated and softened while vacuum suctioning from the lower surfaces of the gantry 3, 3B, 3C, and 3D to be attached to the surfaces of the base materials 2, 2B, 2C, and 2D. Since only the outer peripheral portion 11 of the decorative film material 1 is heated and attached to the pedestals 3, 3B, 3C, and 3D that are in contact with the base materials 2, 2B, 2C, and 2D, the preformed decorative film material 1 The space formed between the inner peripheral portion 12 and the pedestals 3, 3B, 3C, and 3D can be vacuum-sucked in a sealed state. Therefore, the conventional chamber structure in which the lower chamber (base material side chamber) and the upper chamber (seat side chamber) sandwich and accommodate the entire base material (molded base material) from above and below becomes unnecessary, and vacuum suction is simplified. be able to. Therefore, even if the size of the film decorative parts 10, 10B, 10C, and 10D is increased, the pedestals 3, 3B, 3C, and 3D that are in contact with the base materials 2, 2B, 2C, and 2D and the gantry 3, 3B, 3C Since it is sufficient to provide the suction means 5 for vacuum suction from the lower surface of the 3D, the equipment cost can be reduced and the decorative film material can be easily attached to the large parts due to the pressure difference.

Therefore, according to the present embodiment, it is possible to easily reduce the appearance defect due to the hanging of the heat-softened decorative film material 1 due to its own weight, and it is easy to attach the decorative film material 1 to a large part due to the pressure difference. It is possible to provide a method for manufacturing various film decorative parts.

Further, according to the present embodiment, since the decorative film material 1 is provided with the hot melt type adhesive layer 1b on the back surface of the decorative layer 1a, only the outer peripheral portion 11 of the decorative film material 1 is exposed from room temperature. By simply heating to a high temperature and bringing it into contact with the gantry 3, 3B, 3C, and 3D, the hot-melt adhesive layer 1b of the outer peripheral portion 11 softens and only the outer peripheral portion 11 of the decorative film material 1 is pedestaled. It can be attached to 3, 3B, 3C, and 3D. Therefore, the sealed state of the space formed between the inner peripheral portion 12 of the decorative film material 1 and the pedestals 3, 3B, 3C, and 3D can be more easily maintained. The temperature at which the hot melt type adhesive layer 1b exhibits adhesive performance is preferably about 40 to 80 ° C.

Further, according to the sticking device (another embodiment) used in the method for manufacturing the present film decorative part, the decorative film material 1 has a frame 3, 3B, 3C, 3D and a first heater portion 41. A holding frame body 4 with a heater that presses the outer peripheral portion 11 against the pedestals 3, 3B, 3C, and 3D to heat it, a suction means 5 that sucks vacuum from the lower surfaces of the pedestals 3, 3B, 3C, and 3D, and base materials 2, 2B. The decorative film material 1 is provided with the second heater portions 6, 6C, 6D which are arranged above the decorative film materials 1 and 2C and 2D and heat the inner peripheral portion 12 of the decorative film material 1 from above. The first heater portion 41 is heated while the outer peripheral portion 11 of the decorative film material 1 is pressed against the gantry 3, 3B, 3C, 3D, and the outer peripheral portion 11 of the decorative film material 1 is attached to the gantry 3, 3B, 3C, 3D. After that, the suction means 5 is operated to suck the vacuum, and the second heater portions 6, 6C and 6D are heated to generate the inner peripheral portion 12 of the decorative film material 1 on the surfaces of the base materials 2, 2B, 2C and 2D. The decorative film material 1 is preformed along the surfaces of the base materials 2, 2B, 2C, and 2D before the inner peripheral portion 12 of the decorative film material 1 is heat-softened. The outer peripheral portion 11 of the molded decorative film material 1 can be sealed to the pedestals 3, 3B, 3C, and 3D that are in contact with the base materials 2, 2B, 2C, and 2D. Therefore, when the inner peripheral portion 12 of the decorative film material 1 is heated and softened, the inner peripheral portion 12 of the decorative film material 1 is placed close to the surfaces of the base materials 2, 2B, 2C, and 2D. Since it comes into contact with the surfaces of 2, 2B, 2C, and 2D, it is possible to easily reduce the appearance defect due to the hanging of the decorative film material 1 due to its own weight.

Further, in a state where the outer peripheral portion 11 of the decorative film material 1 and the pedestals 3, 3B, 3C and 3D are sealed, the decorative film material 1 is vacuum-sucked from the lower surfaces of the pedestals 3, 3B, 3C and 3D. Since the inner peripheral portion 12 of the above is heated and softened and attached to the surfaces of the base materials 2, 2B, 2C, and 2D, the lower chamber (base material side chamber) and the upper chamber (sheet side chamber) are formed of the base material (molding). The conventional chamber structure in which the entire base material) is sandwiched and accommodated from above and below becomes unnecessary, and the vacuum suction structure can be simplified. Therefore, even if the size of the film decorative parts 10, 10B, 10C, and 10D becomes large, the gantry 3, 3B, 3C, 3D and the gantry 3, 3B, 3C, which are in contact with the base materials 2, 2B, 2C, and 2D, Since it is sufficient to provide the suction means 5 for vacuum suction from the lower surface of the 3D, the equipment cost can be reduced and the decorative film material can be easily attached to the large parts due to the pressure difference.

Therefore, according to the present and other embodiments, it is possible to easily reduce the appearance defect due to the hanging of the heat-softened decorative film material 1 due to its own weight, and to attach the decorative film material 1 to a large part due to the difference in atmospheric pressure. It is possible to provide a sticking device 20, 20B, 20C, 20D used for a method for manufacturing a film decorative part which is easy to use.

Further, according to the present and other embodiments, since the second heater portions 6, 6C, and 6D are made of a flexible planar heating element, the holding frame body 4 with a heater is the outer periphery of the decorative film material 1. By pressing the portion 11 against the gantry 3, 3B, 3C, and 3D, the inner peripheral portion 12 of the decorative film material 1 preformed along the surfaces of the base materials 2, 2B, 2C, and 2D is subjected to the second. Heat can be generated in a state of being curved along the heater portions 6, 6C and 6D. Therefore, the inner peripheral portion 12 of the decorative film material 1 is heated and softened substantially uniformly, and the inner peripheral portion 12 of the decorative film material 1 is molded under a substantially uniform elongation rate, and the substrates 2, 2B, 2C, It can be attached to a 2D surface. Therefore, the appearance defect of the decorative film material 1 can be further reduced.

Further, according to the other embodiment, since the outer peripheral edges of the second heater portions 6C and 6D are connected to the inner peripheral edges of the presser frame body 4 with a heater, the presser frame body 4 with a heater is a decorative film. The second heater portion 6C, is formed on the inner peripheral portion 12 of the decorative film material 1 which is preformed along the surfaces of the base materials 2C and 2D by pressing the outer peripheral portion 11 of the material 1 against the gantry 3C and 3D. Heat can be generated with the 6D in close contact. Therefore, the inner peripheral portion 12 of the decorative film material 1 can be heated and softened at a more uniform temperature. Further, since the inner peripheral portion 12 of the decorative film material 1 is heated in close contact with the second heater portions 6C and 6D made of a flexible planar heating element, the inner peripheral portion of the decorative film material 1 is heated. The local elongation of the part 12 can be suppressed. Therefore, the appearance defect of the decorative film material 1 can be further reduced.

Needless to say, the present embodiment can be changed without changing the gist of the present invention. For example, in the present embodiment, the presser frame 4 with a heater that presses the outer peripheral portion 11 of the decorative film material 1 against the gantry 3, 3B, 3C, and 3D to heat the decorative film material 1 has a first heater portion 41. However, the entire holding frame body 4 with a heater may be formed so as to be able to generate heat.

Further, in the present embodiment, the film decorative component 10 is a component formed by attaching the decorative film material 1 to the surface of the base material 2, but as shown in FIGS. 9 and 10, for example, a vehicle. The decorative film material 1 may be attached to the surface of the roof panel (base material 2) of the above.

INDUSTRIAL APPLICABILITY The present invention can be used as a method for manufacturing a film decorative part formed by adhering a heat-softened decorative film material to the surface of a base material due to an atmospheric pressure difference, and a sticking device thereof.

1 Decorative film material 1a Decorative layer 1b Adhesive layer 2, 2B, 2C, 2D base material 3, 3B, 3C, 3D pedestal 4 Presser frame with heater 5 Suction means 6, 6C, 6D 2nd heater part 10, 10B film decoration parts 10C, 10D film decoration parts 11 outer circumference 12 inner circumference 20, 20B sticking device 20C, 20D sticking device 41 1st heater part

Claims (5)

A method for manufacturing a film decorative part formed by attaching a heat-softened decorative film material to the surface of a base material by an atmospheric pressure difference.
After heating only the outer peripheral portion of the decorative film material and attaching it to the gantry in contact with the base material, the suction means connected to the lower surface of the gantry and arranged in the vicinity of the outer peripheral edge of the base material A method for manufacturing a film decorative part, which comprises heating and softening the inner peripheral portion of the decorative film material while sucking vacuum to attach it to the surface of the base material. In the method for manufacturing a film decorative part according to claim 1,
A method for manufacturing a film decorative component, wherein the decorative film material is provided with a hot melt type adhesive layer on the back surface of the decorative layer. A sticking device used in the method for manufacturing a film decorative part according to claim 1 or 2.
Said mount, a heater with presser frame body and the outer peripheral portion of the decorative film material has a first heater part for heating pressed against the said frame, and said suction means for vacuum suction from the lower surface of the frame, the group It is provided with a second heater portion which is arranged above the material and heats the inner peripheral portion of the decorative film material from above.
The first heater portion was generated by the pressing frame body with a heater while the outer peripheral portion of the decorative film material was pressed against the gantry, and the outer peripheral portion of the decorative film material was attached to the gantry. Later, while operating the suction means to perform vacuum suction, the second heater portion is heated to attach the inner peripheral portion of the decorative film material to the surface of the base material. .. In the sticking apparatus according to claim 3,
The second heater portion is a sticking device characterized by being made of a flexible planar heating element. In the sticking apparatus according to claim 4,
A sticking device characterized in that the outer peripheral edge of the second heater portion is connected to the inner peripheral edge of the holding frame body with a heater.

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