JP6472186B2 - Transfer jig set, transfer device, and transfer method - Google Patents

Description

  The present invention relates to a transfer jig set, a transfer device, and a transfer method for transferring a decorative layer of a transfer sheet to a transfer target.

Conventionally, in order to perform decorations that form symbols and characters on articles having various shapes such as electronic devices such as mobile phones, home appliances, cosmetic containers, and ornaments, a decorative layer is used using a transfer sheet. A transfer method for transferring to the surface of an article is known.
For example, as described in Patent Document 1 and Patent Document 2, a transfer device or a transfer device that transfers a decoration layer along a transfer sheet in a three-dimensional shape of a transfer object using a flexible sheet or fluid. The method is known.

JP-A-5-92548 JP-A-6-15945

  However, with the techniques described in Patent Document 1 and Patent Document 2 alone, when a transferred object has, for example, fine irregularities and a steep standing wall is formed, the transfer sheet can be placed along the standing wall. It is difficult to create a gap between the transfer sheet and the rising part of the standing wall. If gaps are formed in the wall surface and corner portion of the standing wall, it becomes difficult to transfer the decoration layer to the wall surface and corner portion of the standing wall and decorate it beautifully without unevenness.

  An object of the present invention is to provide a transfer jig set, a transfer apparatus, and a transfer method capable of transferring a decorative layer to a wall surface and a corner portion of a standing wall using a transfer sheet without unevenness.

Hereinafter, a plurality of modes will be described as means for solving the problems. These aspects can be arbitrarily combined as necessary.
The transfer jig set according to an aspect of the present invention is a first shape that is defined relative to a convex shape along at least a part of a standing wall formed on a transfer target, and a position of the convex shape. A sheet holding mechanism for holding the transfer sheet at the arrangement position, a first jig having a plurality of first holes formed in a region facing the transfer sheet held by the sheet holding mechanism, a second jig body, And a second jig having a transferred object holding mechanism for holding the transferred object at the second arrangement position of the second jig body determined relative to the convex position in the fastened state. The first jig and the second jig, in order to transfer the decorative layer of the transfer sheet to the standing wall in a fastened state, along the transfer sheet along at least a part of the standing wall by a convex shape, Pressure of fluid introduced between the first jig and the transfer sheet from the plurality of first holes Thus it is configured to be pressed in close contact with the wall up a transfer sheet.
According to the transfer jig set configured as described above, the transfer sheet is placed along at least a part of the standing wall by the convex shape of the first jig, and the first jig and the transfer sheet are formed from the plurality of first holes. Since the transfer sheet is pressed and brought into close contact with the standing wall by the pressure of the fluid introduced therebetween, it is possible to suppress the occurrence of a gap between the wall surface and corner portion of the standing wall and the transfer sheet.

  The transferred object holding mechanism may be configured to have a moving mechanism that moves the convex shape away from the standing wall when the transfer sheet is pressed and brought into close contact with the standing wall of the transferred body. According to the transfer jig set configured as described above, the moving mechanism moves the convex shape away from the standing wall, so that the convex shape can be separated from the transfer sheet in close contact with the standing wall during the transfer. It is possible to prevent inconvenience when the transfer is performed in a state where the shape is in contact with the transfer sheet.

  The second jig further has a plurality of second holes formed in a region sealed by the transfer sheet in a fastened state, and the transfer body holding mechanism fixes the transfer body. The moving mechanism is installed between the mounting table and the second jig body, and after being reduced in pressure by the plurality of second holes, the first jig and the transfer sheet from the plurality of first holes. It may be configured to be an elastic member that contracts when the fluid is introduced between the two and the convex shape away from the standing wall. According to the transfer jig set configured as described above, a function capable of separating the convex shape from the transfer sheet in close contact with the standing wall at the time of transfer can be realized at a low cost with a simple configuration.

A transfer apparatus according to an aspect of the present invention includes the transfer jig set described above, an arrangement mechanism that arranges a transfer sheet on the transfer jig set, and a fastening mechanism that opens and closes the first jig and the second jig. And a heating device for heating the transfer sheet, and a fluid supply / discharge device that supplies and discharges the fluid through the plurality of first holes of the transfer jig set.
According to the transfer device configured as described above, the transfer sheet is placed along at least a part of the standing wall by the convex shape of the first jig of the transfer jig set by the fastening mechanism, and a plurality of fluid supply and discharge devices are used. Since the transfer sheet is pressed and brought into close contact with the standing wall by the pressure of the fluid introduced from the first hole between the first jig and the transfer sheet, there is a gap between the wall surface of the standing wall and the corner portion and the transfer sheet. Generation | occurrence | production can be suppressed.

The transfer method according to an aspect of the present invention includes a sheet holding step of placing and holding a transfer sheet at a first arrangement position that is relatively defined with respect to a convex position of the first jig, and a standing wall A fastening step in which the first jig is fastened to the second jig holding the transferred object on which the transfer sheet is formed, and the transfer sheet is placed along at least a part of the standing wall by the convex shape; and the first jig A fluid is introduced between the first jig and the transfer sheet from the plurality of first holes formed in the sheet, and the transfer sheet is pressed and brought into close contact with the standing wall by the pressure of the fluid, so that the decorative layer of the transfer sheet is placed on the standing wall. And a transfer step for transferring the first jig and an opening step for opening the second jig.
According to the transfer device configured as described above, in the fastening process, the transfer sheet is caused to follow the fastening mechanism by at least a part of the standing wall by the convex shape of the first jig, and in the transfer process, the plurality of first holes Since the transfer sheet is pressed and brought into close contact with the standing wall by the pressure of the fluid introduced between the first jig and the transfer sheet, the gap between the wall surface of the standing wall and the corner portion and the transfer sheet can be reduced. it can.

  Further, the transfer step may include a moving step of moving the convex shape away from the standing wall of the transfer object when the transfer sheet is pressed and adhered to the standing wall or after the transfer sheet is pressed and adhered. According to the transfer method configured in this way, the convex shape can be moved away from the standing wall in the moving step, so that the convex shape can be separated from the transfer sheet that is in close contact with the standing wall during the transfer, and the convex shape is the transfer sheet. It is possible to prevent a problem that occurs when the transfer is performed in a state of being in contact with.

  In the transfer jig set, the transfer apparatus, or the transfer method according to the present invention, the decorative layer can be transferred to the wall surface and the corner portion of the standing wall using the transfer sheet without unevenness.

The perspective view which shows an example of the to-be-transferred object which is an application object of a transfer apparatus and the transfer method. II sectional view taken on the line of FIG. A typical sectional view for explaining a transfer sheet. FIG. 3 is a conceptual diagram for explaining a configuration example of a transfer device according to an embodiment of the present invention. Sectional drawing for demonstrating the positional relationship of the recessed groove of a to-be-transferred body, and the convex shape of a 1st jig | tool. The typical sectional view showing an example of the sheet maintenance process concerning one embodiment of the present invention. The typical sectional view showing an example of the fastening process concerning one embodiment of the present invention. The typical sectional view for explaining the transfer process concerning one embodiment of the present invention. The typical sectional view for explaining the transfer process concerning one embodiment of the present invention. The typical sectional view for explaining the transfer process concerning one embodiment of the present invention. The typical sectional view for explaining the opening process concerning one embodiment of the present invention. The perspective view for demonstrating a modification.

  Hereinafter, a transfer device and a transfer method according to an embodiment of the present invention will be described. Prior to the description, a transfer target will be briefly described. If the transfer apparatus and the transfer method according to the present embodiment can place the transfer sheet on the transfer target having a three-dimensional shape, the transfer method and the transfer method can be performed only on the upper surface as in the conventional transfer method described using, for example, Patent Document 2. In addition, the decorative layer can be transferred to the side surface and the back surface. However, in the following, in order to make the explanation easy to understand, a transfer object having a standing wall formed on the upper surface will be described.

(1) Transfer object FIG. 1 shows the transfer object 100 as viewed obliquely from above. For example, glass, ceramic, metal, resin, or a composite thereof can be used as the material of the transfer target 100. Here, a case where the material of the transfer target 100 is glass will be described as an example. . A concave groove 102 having an annular shape in a plan view is formed on the upper surface 101 of the transfer object 100. Although only the transfer target 100 is shown in FIG. 1, the cross section taken along line II in FIG. 1 is shown by a solid line in FIG.
The groove 102 shown in FIG. 2 can be regarded as having two standing walls 104 and 105 rising from the bottom surface 103. Alternatively, the concave groove 102 can be regarded as having two standing walls 104 and 105 that fall from the upper surface 101. In the description of the present invention, the standing wall is defined as a wall having a surface rising or falling from the surface and having an angle of 90 degrees or more and 135 degrees or less with the surface. In particular, it is difficult to place the transfer sheet along a minute standing wall portion having a step of 1 mm or less. Specifically, when the bottom surface 103 is regarded as the surface, the angle θ1 formed by the bottom surface 103 and the standing walls 104 and 105 has an angle from 90 degrees to 135 degrees. Alternatively, when the upper surface 101 is regarded as the surface, an angle θ2 formed by the upper surface 101 and the standing walls 104 and 105 has an angle from 90 degrees to 135 degrees. If there are standing walls 104 and 105 having such a steep surface, it becomes relatively difficult to transfer not only to the wall surfaces but also to the corner portions 104a, 104b, 105a, and 105b without unevenness. Further, in the case of the groove having the standing walls 104 and 105 on both sides like the concave groove 102, it is difficult to transfer without unevenness, and when the groove width W1 is not less than 0.8 mm and not more than 5 mm, the transfer can be performed without unevenness. difficult. Further, since the transfer is difficult when the aspect ratio of the groove width W1 and the groove depth Dp is 1, here, the concave groove 102 having the width W1 of 0.8 mm and the depth Dp1 of 0.8 mm is taken as an example. I will explain. Such a narrow width makes it relatively difficult to transfer evenly to the bottom surface 103 of the groove 102. However, by using the transfer apparatus or transfer method according to the present invention described below, beautiful transfer can be performed even on standing walls and grooves having the above-described shapes, which has been difficult in the past.

(2) Transfer Sheet FIG. 3 shows a basic cross-sectional configuration of the transfer sheet 200. The transfer sheet 200 shown in FIG. 3 is in a state of being pushed into the concave groove 102. The transfer sheet 200 includes a base sheet 201, a transfer layer 202, and an adhesive layer 203. In the present embodiment, the decorative layer includes the transfer layer 202 and the adhesive layer 203. That is, by transfer, the transfer layer 202 and the adhesive layer 203 move from the base sheet 201 to the surface of the transfer target 100 to become a decorative layer that decorates the surface of the transfer target 100.

The base sheet 201 is made of, for example, a polyolefin resin, a polycarbonate resin, or a polyethylene terephthalate resin. Here, the polycarbonate-based resin is a resin having a carbonate group (—O— (C═O) —O—) as a structural unit at least in the main chain. Therefore, you may have another structural unit other than a carbonate group in the principal chain. The polyolefin resin is a homopolymer or copolymer of olefins, or a copolymer of monomer components copolymerizable with these olefins. Examples of olefins include ethylene, propylene, and butene. Specifically, polyethylene, polypropylene, ethylene-vinyl acetate copolymer, ethylene-ethyl acrylate copolymer, ethylene-acrylic acid copolymer, ethylene-methyl methacrylate copolymer, ethylene-α-olefin copolymer Examples of the olefin resin include a polymer, an ethylene-propylene copolymer, and an ethylene-butene copolymer. The polyethylene terephthalate-based resin is a resin obtained using aromatic dicarboxylic acids (for example, terephthalic acid or its ester) and glycols (for example, ethylene glycol) as main raw materials, and ethylene terephthalate is repeated in the resin molecule. A unit exists.
The transfer layer 202 includes, for example, a pattern layer on which a pattern, characters, ground pattern, color (including metallic luster), and the like are formed, and a release layer for peeling from the base sheet 201. In the decorative layer, the release layer may be configured to function as a coat layer that protects the design layer. For example, the transfer sheet 200 including a pattern layer and a hard coat layer may be referred to as a multilayer structure film. For a multilayer structure film other than such a structure, for example, a metal vapor-deposited layer and a pattern layer that transmit some light. And a hard coat layer, a design layer, and a vapor deposition layer.

A design layer is a layer for expressing a character and a design, for example, is formed using the coloring ink which contains a coloring agent and the synthetic resin used as a binder at least. Synthetic resins that serve as binders for the pattern layers are polyvinyl resins, polyamide resins, polyester resins, acrylic resins, polyurethane resins, polyvinyl acetal resins, polyester urethane resins, cellulose ester resins, alkyd resins, vinyl chloride. Synthesis of at least one selected from the group consisting of vinyl acetate copolymer resins, thermoplastic urethane resins, methacrylic resins, acrylic ester resins, chlorinated rubber resins, polyethylene chloride resins and polypropylene chloride resins A resin is preferred. Examples of the colorant contained in the pattern layer coloring ink include pigments and dyes. Examples of pigments include (1) plant pigments such as indigo, alizarin, carsamine, anthocyanin, flavonoid, shikonin, (2) food pigments such as azo, xanthene, triphenylmethane, and (3) natural inorganic pigments such as loess and green soil. (4) Calcium carbonate, titanium oxide, aluminum lake, mudder lake, cochineal lake and the like are preferable.
For the release layer, for example, a copolymer is used, and examples of the copolymer include acrylic (PMMA) resin, polyester resin, and vinyl chloride-vinyl acetate copolymer resin. In order to increase the hardness of the release layer and improve the scratch resistance of the resin molded product, for example, an ultraviolet curable resin or an electron beam curable resin is used. The release layer is formed by printing on the base sheet 201 using, for example, a printing method. As the printing method, for example, a gravure printing method, a screen printing method, or an offset printing method can be used.
For the adhesive layer, a heat-sensitive and / or pressure-sensitive resin suitable for the material of the pattern layer, for example, a PMMA-based resin is used if the synthetic resin serving as the binder of the pattern layer is a PMMA-based resin. . The adhesive layer is printed by, for example, a gravure printing method or a screen printing method.

(3) Transfer Device FIG. 4 shows a part of the transfer device. A part of the transfer apparatus 10 shown in FIG. 4 is an important part for the description of the present embodiment, and illustration and description of other parts of the transfer apparatus 10 that can be configured in the same manner as in the past are omitted.
The transfer device 10 includes a first jig 20, a second jig 30, a fastening mechanism 40, an arrangement mechanism 50, a heating device 60, an air supply / exhaust device 70 that is a kind of fluid supply / discharge device, and a decompression device 80. Yes. Further, the transfer device 10 includes a fixed plate 11 and a cooling plate 12 that cools the second jig 30 fixed to the fixed plate 11. In this embodiment, the first jig 20 is a movable mold, and the second jig 30 is a fixed mold.
(3-1) First jig 20
The first jig 20 includes a first jig body 21, a fitting part 22 in which an annular convex shape 22 a is formed, and a clamp 23 for holding the transfer sheet 200. In this embodiment, the clamp 23 is a sheet holding mechanism of the first jig 20. In the first jig 20, a plurality of first holes 24 that are air passages are formed in a region facing the transfer sheet 200. The arrangement density of the first holes 24 of the fitting component 22 is determined from the arrangement density of the first holes 24 of the first jig body 21 so that the transfer sheet 200 starts to come into close contact with the second jig body 31 from the periphery of the convex shape 22a. Also, it is preferable to make it larger.
The convex shape 22 a of the fitting part 22 of the first jig 20 is accurately arranged with respect to the concave groove 102 of the transferred object 100. As a result of the accurate arrangement, as shown in FIG. 5, a gap Ds <b> 1 is formed between the fitting component 22 and the upper surface 101 of the transferred body 100. This distance Ds1 is set within the range given by the following equation (1), assuming that the thickness of the transfer sheet 200 is T0, P = 0 to 0.1 mm and Q = 0 to 0.1 mm. Is preferred.
Ds1 = T0 + P + Q (1).

Further, the distances Ds2, Ds3 between the bottom surface 103 and the standing walls 104, 105 and the convex shape 22a are preferably set within the ranges given by the following equations (2) and (3).
Ds2 = T0 + P (2), Ds3 = T0 + P (3).
In the above formulas (1) to (3), if the value of P is larger than 0.1 mm, the distance between the transferred object 100 and the convex shape 22a is too far and the transfer sheet 200 tends to float, and the transfer is insufficient. It becomes easy to become. Further, in the above equation (1), if the value of Q is larger than 0.1 mm, the distance between the upper surface 101 of the transfer target 100 and the fitting component 22 is too far, and wrinkles are likely to occur during transfer.
For example, if the thickness T0 of the transfer sheet 200 is 0.1 mm, the distance Ds1 between the fitting component 22 and the upper surface 101 of the transferred object 100 is preferably set within the range of 0.1 mm to 0.3 mm. . In such a condition, the distances Ds2 and Ds3 between the bottom surface 103 and the standing walls 104 and 105 and the convex shape 22a are preferably set within a range of 0.1 mm to 0.2 mm.
Moreover, it is preferable to form curved surfaces CS1, CS2, CS3, and CS4 having a locality radius of about 0.2 mm in portions corresponding to the four corner portions 104a, 104b, 105a, and 105b in the convex shape 22a. By providing such curved surfaces CS1, CS2, CS3, and CS4, it is possible to suppress the occurrence of ink cracks in the transfer layer 202 of the transfer sheet 200. However, if the curvature radii of the curved surfaces CS1, CS2, CS3, and CS4 are excessively increased, the distance from the transfer target 100 is increased, making it difficult to transfer to the corner portions 104a, 104b, 105a, and 105b. Unevenness is likely to occur in the transfer of 104b, 105a, 105b.

(3-2) Second jig 30
The second jig 30 includes a second jig body 31, a mounting table 32, and a spring 33, and the second jig body 31 is fixed to the fixed plate 11 of the transfer device 10. A mounting table 32 for holding the transfer target 100 is attached to the second jig 30 so as to be movable up and down. In this embodiment, the mounting table 32 and the spring 33 hold the transferred object 100 at the second arrangement position of the second jig body 31 that is relatively defined with respect to the position of the convex shape 22a in the fastened state. It is a transfer object holding mechanism for this purpose. In this embodiment, the spring 33 protrudes from the standing walls 104 and 105 when the transfer sheet 200 is pressed and brought into close contact with the standing walls 104 and 105 (see FIG. 2) of the transfer target 100 or after being pressed and brought into close contact. This is a moving mechanism that moves away the shape 22a. Whether the timing of moving the convex shape 22a away from the standing walls 104 and 105 is when the pressing is in close contact or after the pressing is in close contact, the spring constant of the spring 33 and the air supply / exhaust of the air supply / exhaust device 70 described later. It can be set as appropriate according to the timing and supply / exhaust state. Since what timing is appropriate as the timing to move away varies depending on the transfer status, it is preferable to confirm by a test performed in advance in order to set transfer conditions. A plurality of second holes 34 that are air passages are formed in the second jig 30.

(3-3) Fastening mechanism 40
The first jig 20 and the second jig 30 are configured so as to be relatively moved toward and away from each other by the fastening mechanism 40. That is, the first jig 20 and the second jig 30 are opened and closed by the fastening mechanism 40. The fastening mechanism 40 moves the arrangement mechanism 50 together with the first jig 20.
(3-4) Arrangement mechanism 50
The arrangement mechanism 50 includes a feeding device 51, a winding device 52, and a clamping hand 53. The transfer device 200 holds the transfer sheet 200 in multiple layers, and the transfer device 51 sends out the transfer sheet 200 by a length necessary for one transfer each time the transfer is completed. The winding device 52 winds up the transfer sheet 200 having the same length as the length fed by the feeding device 51 every time the transfer is completed, in synchronization with the feeding device 51. The arrangement mechanism 50 includes a sensor (not shown), and conveys the transfer sheet 200 to a first arrangement position that is determined relative to the convex shape 22 a of the first jig 20.

(3-5) Heating device 60
The heating device 60 includes a heater 61 disposed on the first jig 20. The transfer sheet 200 is heated by heating the transfer sheet 200 through the first jig body 21 with the heater 61. The heating device 60 further includes a heater 62 disposed on the second jig 30. The heater 62 is a heating unit for heating the transfer target 100, and heats the transfer target 100 via the second jig body 31 and the mounting table 32.
(3-6) Air supply / exhaust device 70
The air supply / exhaust device 70 is connected to the plurality of first holes 24 of the first jig 20, and supplies and exhausts air through the plurality of first holes 24. The air supply / exhaust device 70 can supply air to a pressure higher than atmospheric pressure, and can exhaust air to a pressure lower than atmospheric pressure. In other words, the air supply / exhaust device 70 has a function of compressing air and a function of depressurizing the plurality of first holes 24 and the space through which the first holes 24 communicate. The air supply / exhaust device 70 can open the plurality of first holes 24 to the atmosphere, and can return from the compressed air state or the reduced pressure state to the atmospheric pressure state by opening at least one first hole 24 to the atmosphere. it can.

(3-7) Pressure reducing device 80
The decompression device 80 is connected to the plurality of second holes 34 of the second jig 30, and exhausts air through the plurality of second holes 34. The decompression device 80 can open the plurality of second holes 34 to the atmosphere, and can return from the reduced pressure state to the atmospheric pressure state by opening at least one second hole 34 to the atmosphere.
The transfer device 10 includes a fastening mechanism 40, an arrangement mechanism 50, a heating device 60, an air supply / exhaust device 70, a decompression device 80, and a control device (not shown) for controlling the cooling plate 12. The control device includes, for example, a CPU (Central Processing Unit), a memory, a timer, and various sensors. The fastening mechanism 40, the arrangement mechanism 50, the heating device 60, the air supply / exhaust device 70, the decompression device 80, and the power source, driving unit, and movable unit of the cooling plate 12 are configured to operate in accordance with commands from the CPU. For example, the operation of each process of the transfer apparatus 10 described later is performed by the CPU issuing commands while monitoring the temperature, pressure, and arrangement position of each part with various sensors.

(4) Transfer Method A transfer method using the transfer device 10 will be described with reference to FIGS. First, as described with reference to FIG. 4, the fitting part 22 is formed with a convex shape 22 a which is a reverse shape of the concave groove 102 of the transfer body 100. As shown in FIG. 4, the first jig 20 in which the fitting component 22 is fitted into the first jig body 21 is set in the transfer device 10, and the transfer sheet 200 is set in the arrangement mechanism 50. Preparation for transfer is performed.

(4-1) Sheet Holding Step In the sheet holding step, the transfer sheet 200 is held by the clamp 23 on the first jig 20 as shown in FIG. The arrangement position of the transfer sheet 200 held by the clamp 23 is a first arrangement position that is determined relatively to the convex shape 22a. It is the arrangement mechanism 50 shown in FIG. 4 that conveys the transfer sheet 200 to the first arrangement position.
In addition, in the state shown in FIG. 6, the transfer target 100 is set and fixed on the mounting table 32 of the second jig 30.
In the state of FIG. 6, the first jig 20 and the second jig 30 are already heated by the heaters 61 and 62 of the heating device 60. The transfer sheet 200 is heated using the heat of the heated first jig 20. Then, the pressure is reduced using the plurality of first holes 24 while the transfer sheet 200 is softened by heat. At this time, the air supply / exhaust device 70 (see FIG. 4) exhausts air from the first hole 24. The softened transfer sheet 200 is sucked by the plurality of first holes 24 and follows the inner surface of the first jig 20, particularly the convex shape 22a.

(4-2) Fastening Step In the fastening step, the first jig 20 and the arrangement mechanism 50 are moved by the fastening mechanism 40 shown in FIG. 4, and as shown in FIG. Is fastened to the second jig 30. In the fastened state of FIG. 7, the transferred object 100 is held by the mounting table 32 and the spring 33 at the second arrangement position of the second jig body 31 that is determined relative to the position of the convex shape 22 a. The At this time, the spring 33 is in the most extended state, and the mounting table 32 is in the state of being most protruded from the second jig body 31.
Simultaneously with the completion of fastening, pressure reduction is started by the pressure reducing device 80 (see FIG. 4) using the plurality of second holes 34 of the second jig 30. Even if the space S1 formed between the transfer sheet 200 and the second jig body 31 is depressurized, the transfer sheet 200 is sucked by the plurality of first holes 24 of the first jig 20, It is in close contact with the first jig 20 side.

(4-3) Transfer Process The transfer process goes through the processes shown in FIGS. In the step shown in FIG. 8, the plurality of first holes 24 of the first jig 20 are opened to the atmosphere. As a result, the suction force of the first hole 24 is reduced, the transfer sheet 200 is pulled toward the space S1 that is decompressed by the second hole 34 of the second jig 30, and the transfer sheet 200 is pulled from the first jig body 21. Peeling from 200 begins. However, the transfer sheet 200 in the vicinity of the convex shape 22a is not yet completely separated from the convex shape 22a. At this time, the spring 33 is still in the most extended state, and the mounting table 32 is in the state of the most protruding from the second jig body 31.
In the state shown in FIG. 9, air higher than atmospheric pressure is introduced from the plurality of first holes 24 of the first jig 20, and compressed air is started by the air supply / exhaust device 70 (see FIG. 4). When the compressed air starts, the transfer sheet 200 comes into close contact with the surface of the transfer target 100, and the transfer sheet 200 comes into close contact with the surface of the second jig body 31. Then, as the introduction of air from the first hole 24 proceeds and the pressure in the space S2 formed between the transfer sheet 200 and the first jig body 21 increases, the spring 33 contracts, and the mounting table 32. Begins to fall. At this time, in order to prevent the transfer sheet 200 from starting to come into close contact with the second jig body 31 from a position far from the transfer target 100, the arrangement density of the first holes 24 of the fitting parts 22 is set to the first density of the first jig body 21. It is preferable to make it larger than the arrangement density of one hole 24. If the first hole 24 of the first mold body 21 is not provided, a good transfer result may be obtained depending on the transfer situation. In such a case, the first hole 24 is provided in the first mold body 21. There may be no.
Then, the cooling of the second jig 30 is started by the cooling plate 12 from the state shown in FIG.
In the state shown in FIG. 10, the compressed air is completed, the introduction of air from the plurality of first holes 24 of the first jig 20 is stopped, and the mounting table 32 is lowered to the lowest point. At this time, pressure is evenly applied to the entire transfer target 100 including the concave groove 102 by the air pressure in the space S2. As a result, the transfer sheet 200 sufficiently adheres to the standing walls 104 and 105 and the corner portions 104a, 104b, 105a, and 105b (see FIG. 5) of the concave groove 102, and beautiful transfer without unevenness is performed. Further, in the state of FIG. 10, the cooling of the second jig 30 by the cooling plate 12 further proceeds.

(4-4) Opening Step When the cooling of the transfer sheet 200 proceeds by the cooling plate 12 via the second jig 30, and the decorative layer 204 (the transfer layer 202 and the adhesive layer 203) is fixed to the transfer target 100, Opening is performed by the fastening mechanism 40 (see FIG. 4). Before the first jig 20 and the second jig 30 are opened, the first hole 24 and the second hole 34 are opened to the atmosphere by the air supply / exhaust device 70 and the decompression device 80 (see FIG. 4). In addition to the space S2 shown in FIG. 5, the pressure between the transfer sheet 200 and the second jig body 31 is the same as the atmospheric pressure. In the opening process, as shown in FIG. 11, the first jig 20 is separated from the second jig 30 fixed to the stationary platen 11. Then, the transfer sheet 200 held by the holding hand 53 is removed from the transfer target 100, and the decorative layer 204 is transferred to the transfer target 100 and remains. At this time, the spring 33 returns to the most extended state, and the mounting table 32 returns to the state where the mounting base 32 protrudes most from the second jig body 31. Further, the fixing of the transfer sheet 200 to the first jig main body 21 by the clamp 23 is released, and the transfer sheet 200 can be conveyed for the next transfer.

(5) Features As described above, in the above-described embodiment, the first jig 20 and the second jig 30 constitute a transfer jig set. In the transfer process using the transfer jig set, after the transfer sheet 200 is placed along the standing walls 104 and 105 of the concave groove 102 by the convex shape 22a of the first jig 20, a plurality of the first jig 20 The transfer sheet 200 is pressed and adhered to the standing walls 104 and 105 by the pressure of air introduced between the first jig 20 and the transfer sheet 200 from the first hole 24. As a result, the decorative layer 204 can be transferred evenly to the standing walls 104 and 105 and the corner portions 104a, 104b, 105a, and 105b using the transfer sheet 200. The transfer device 10 according to the present embodiment is also suitable for transferring the concave groove 102 in which the distance between the two standing walls 104 and 105 is 1 mm or less, and the bottom surface 103 sandwiched between the standing walls 104 and 105 is uniform. The transfer point is excellent.
In particular, since the transfer object holding mechanism for moving the transfer object 100 in the transfer process is configured by the mounting table 32 and the spring 33, the space S2 to which pressure is applied can be formed, and the convex shape 22a is formed on the transfer sheet 200. By transferring while being in contact, it is possible to prevent problems such as the decorative layer 204 being damaged. In this way, when the moving mechanism is formed by the spring 33, the transferred object holding mechanism can be configured at low cost.

(6) Modifications One embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the invention. In particular, the embodiments and the plurality of modifications described in the present specification can be arbitrarily combined as necessary.
(6-1) Modification 1
In the above embodiment, the case where the first jig 20 is a movable mold and the second jig 30 is a fixed mold has been described. However, the side on which the transfer target is fixed is a movable mold, and the transfer sheet is It can also comprise so that the side hold | maintained may be a fixed metal mold | die.
(6-2) Modification 2
Although the said embodiment demonstrated the case where the some 1st hole 24 was formed in the fitting component 22 in which the convex shape 22a was formed, although several 1st hole 24 may be formed by machining, ventilation is carried out. A plurality of fine holes included in the conductive material can also be used as the first holes 24. For example, when the fitting part 22 is cut out from a breathable metal material, a more uniform air pressure can be applied to the transfer surface as compared with the case of using a hole formed by machining. By using the fitting component 22 made of such a breathable material, it becomes easy to transfer a fine design to the standing walls 104 and 105 and the bottom surface 103.

(6-3) Modification 3
In the above embodiment, the case where the moving mechanism for moving the mounting table 32 of the second jig 30 is configured by the spring 33 has been described. However, an elastic member other than the spring 33 may be used. Examples of the elastic member other than the spring include a rubber such as silicon rubber or a resin foam.
The moving mechanism can also be configured to move mechanically without using an elastic member. For example, the mounting table 32 may be moved using an air cylinder instead of the spring 33.
(6-4) Modification 4
In the above embodiment, the transfer body holding mechanism is configured by the mounting table 32 and the spring 33. However, the transfer body holding mechanism only needs to be able to move and fix the transfer body to an appropriate position in each step. Therefore, a member other than the mounting table 32 may be used to fix the transfer target. For example, a movable arm can be used instead of the mounting table 32. This arm has, for example, a clamping function for holding the transfer target.

(6-5) Modification 5
In the above embodiment, the air supply / exhaust device 70 has been described as an example of the fluid supply / discharge device. However, the pressure applied to the transfer sheet for transfer is not limited to air. For example, a gas other than air is used. Alternatively, it may be a liquid, and the gas may be nitrogen, for example, and the liquid may be water or oil, for example.
(6-6) Modification 6
In the above-described embodiment, the case where transfer is performed to the transfer target 100 on which the standing walls 104 and 105 are formed on the upper surface 101 has been described. However, the formation position of the standing wall formed on the transfer target is limited to the upper surface. It is not a thing. For example, as shown in FIG. 12, the present invention can also be applied to three-dimensional transfer of a transfer target 100A having a three-dimensional shape in which standing walls 114 and 115 are formed on the side surface 110. Since the side surface 110 of FIG. 12 is inclined, the convex shape 22Aa of the first jig 20A can be separated from the standing walls 114 and 115 by using the one that moves up and down like the mounting table 32 of the above embodiment. it can. The convex shape 22Aa is formed smaller than the inverted shape of the concave groove 112 having the standing walls 114 and 115 by the thickness of the transfer sheet, as in the above embodiment.

(6-7) Modification 7
In the above embodiment, the case where the convex shape 22a is formed in the fitting component 22 has been described. If such a fitting component 22 is used, it can be easily handled by replacing the fitting component 22 when the shape of the concave groove 102 changes. However, the convex shape 22a does not necessarily have to be formed in the fitting component 22, and for example, the convex shape 22a may be directly formed in the first jig body 21.
(6-8) Modification 8
In the above embodiment, the case where the convex shape 22a is connected in an annular shape has been described. However, the convex shape 22a does not need to be entirely along the standing walls 104 and 105 of the concave groove 102, for example, a circle in a broken line shape. You may arrange | position so that it may draw. Even if there is a part of the convex shape that does not follow the standing wall, it is sufficient if the transfer sheet can be placed along the standing wall.
(6-9) Modification 9
In the above embodiment, the first jig 20 is the first mold described by taking the movable mold as an example, and the second jig 30 is the second mold explained by taking the fixed mold as an example. The case where the transfer jig set is a transfer mold set has been described. However, the first jig 20 and the second jig 30 are, for example, a transfer integrated with the body of the transfer apparatus, in addition to the case where the first jig 20 and the second jig 30 can be detached from the transfer apparatus 10 like the first mold and the second mold. It can also be provided as an upper frame and a lower frame of the apparatus. In this case, the upper frame body and the lower frame body move relatively up and down, and can be fastened and released, and the chamber is formed in a space surrounded by the upper frame body and the lower frame body. is there.

DESCRIPTION OF SYMBOLS 10 Transfer apparatus 20 1st jig | tool 21 1st jig | tool main body 22 Insertion component 22a Convex shape 24 1st hole 30 2nd jig | tool 31 2nd jig | tool main body 32 Mounting stand 33 Spring 34 2nd hole 40 Fastening mechanism 50 Arrangement mechanism 60 Heating device 70 Air supply / exhaust device 80 Pressure reducing device 100 Transfer object 104, 105 Standing wall 200 Transfer sheet

Claims (6)

A convex shape extending along at least a part of the standing wall formed on the transfer target, a sheet holding mechanism for holding the transfer sheet at a first arrangement position defined relative to the position of the convex shape, and A first jig having a plurality of first holes formed in a region facing the transfer sheet held by the sheet holding mechanism;
A second jig body, and a transferred body for holding the transferred body at a second arrangement position of the second jig body, which is defined relative to the position of the convex shape in the fastened state. A second jig having a holding mechanism,
In order to transfer the decorative layer of the transfer sheet to the standing wall in a fastened state, the first jig and the second jig are transferred to at least a part of the standing wall by the convex shape. The transfer sheet is configured to press and adhere the transfer sheet to the standing wall by the pressure of fluid introduced between the first jig and the transfer sheet from the plurality of first holes. Jig set. The transferred object holding mechanism is an elastic member that contracts when the fluid is introduced between the first jig and the transfer sheet from the plurality of first holes and moves the convex shape away from the standing wall. Have a moving mechanism,
The transfer jig set according to claim 1. The second jig further has a plurality of second holes formed in a region sealed by the transfer sheet in a fastened state,
The transferred object holding mechanism further has a mounting table for fixing the transferred object;
The moving mechanism is disposed between the mounting table between said second jig body, it is kept away the convex from front Symbol standing wall after being depressurized by the plurality of second holes,
The transfer jig set according to claim 2. The transfer jig set according to any one of claims 1 to 3,
An arrangement mechanism for arranging the transfer sheet in the transfer jig set;
A fastening mechanism for opening and closing the first jig and the second jig;
A heating device for heating the transfer sheet;
A transfer device, comprising: a fluid supply / discharge device that supplies and discharges fluid through the plurality of first holes of the transfer jig set. A sheet holding step of arranging and holding the transfer sheet at a first arrangement position determined relative to the convex position of the first jig;
A fastening process in which the first jig is fastened to a second jig holding a transfer target on which a standing wall is formed, and the transfer sheet is placed along at least a part of the standing wall by the convex shape. When,
A fluid is introduced between the first jig and the transfer sheet from a plurality of first holes formed in the first jig, and the transfer sheet is pressed and adhered to the standing wall by the pressure of the fluid. A transfer step of transferring the decorative layer of the transfer sheet to the standing wall;
A transfer method comprising: an opening step of opening the first jig and the second jig. The transferring step includes a moving step of moving the convex shape away from the standing wall of the transfer object when a fluid is introduced between the first jig and the transfer sheet from the plurality of first holes. Including,
The transfer method according to claim 5.

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