JP5979675B2 - Sheet body laminating apparatus and manufacturing method of product in which sheet body is pasted on surface of article - Google Patents

Description

  The present invention relates to a sheet body laminating apparatus and a method for producing a product in which a sheet body is bonded, and in particular, a sheet body laminating apparatus for laminating a sheet body on the surface of an article and the sheet body bonded to the surface of an article. The present invention relates to a manufacturing method of a product.

  A conventional sheet body laminating apparatus includes a support jig that supports an article and a rubber elastic body that presses the article from above (see, for example, Patent Document 1). The article is supported by a support jig, and the sheet body is superposed on the surface of the article, and then heated and pressurized with a rubber elastic body from above to bond the sheet body to the article surface.

JP 2006-123263 A

  When using the above apparatus, the pressure by the rubber elastic body is not uniform over the entire surface of the sheet body, the sheet body does not follow the article surface, causing partial adhesion failure, wrinkles occur in the sheet body, Bubble accumulation may occur between the sheet body and the article. Moreover, when the sheet body bonding surface of the article is a concave surface, or when the degree of bending is a tight curved surface, it may be difficult to bond the sheet body itself.

  An object of the present invention is to suppress the above-described wrinkles and bubble accumulation, and to bond a sheet body to the surface of an article having a three-dimensional shape such as a concave surface, and the sheet body is bonded to the surface of the article. It is to provide a product manufacturing method.

  In order to achieve the above object, a first invention is a sheet body laminating apparatus for laminating a sheet body on the surface of an article, the supporting jig for supporting the article having the sheet body disposed on the surface, A bag body that is movably disposed above the support jig and is filled with a magnetic fluid; and a magnetic attractive force generator that generates a magnetic attractive force in the support jig, and the magnetic fluid is supported by the magnetic attractive force. The bag body presses the sheet body from above by being drawn toward the jig side.

  When configured in this way, the bag body is pulled toward the support jig and presses the sheet body with uniform pressure, so the surface where the sheet body is bonded is a concave surface or the degree of bending has a tight curved surface In addition, the sheet body can be easily bonded to the article.

  According to a second aspect of the present invention, there is provided the sheet body laminating device further comprising a magnetic fluid increasing / decreasing unit for increasing or decreasing the amount of the magnetic fluid in the bag body in the configuration of the first invention.

  If comprised in this way, since the magnitude | size of a bag body changes, the contact area of a sheet body and a bag body can be adjusted.

  3rd invention is the structure of 1st or 2nd invention, The support jig | tool is a sheet | seat body bonding apparatus which is a magnetic attractive force generation | occurrence | production part.

  If comprised in this way, since a support jig | tool itself will generate magnetic attraction, the number of members will decrease and the structure of an apparatus will become simple.

4th invention is the structure of 1st or 2nd invention, and a magnetic attraction generation part is a some electromagnet incorporated in the support jig | tool to which a voltage is applied according to the press part of a sheet | seat body, This is a sheet body laminating apparatus.

  According to a fifth aspect of the present invention, in the configuration of the first or second aspect of the invention, the magnetic attractive force generator is a magnet movably attached to the lower side of the support jig that moves in accordance with the pressing portion of the sheet body. The sheet body laminating apparatus.

  If comprised in this way, since a press part moves, generation | occurrence | production of a wrinkle and a bubble pool can be effectively prevented in the case of bonding.

  A sixth invention is a method of manufacturing a product in which a sheet body is bonded to the surface of an article, the step of supporting the article on a support jig, the step of arranging the sheet body on the surface of the article, and the magnetism inside Positioning the bag body filled with fluid with respect to the sheet body from above the sheet body, generating a magnetic attractive force to the support jig, and attracting the magnetic fluid to the support jig side by the magnetic attractive force, And a step of pressing the bag body against the sheet body.

  When configured in this way, the bag body is pulled toward the support jig and presses the sheet body with uniform pressure, so the surface where the sheet body is bonded is a concave surface or the degree of bending has a tight curved surface However, the sheet body can be easily bonded to the article, and the productivity is improved.

  7th invention is the bonding method of the sheet | seat body which expands a bag body in the process of pressing a bag body against a sheet body in the structure of 6th invention.

  An eighth invention is a method of laminating a sheet body in the configuration of the sixth or seventh invention, wherein the generation position of the magnetic attractive force is changed in the step of pressing the bag body against the sheet body.

  ADVANTAGE OF THE INVENTION According to this invention, a sheet | seat body can be bonded together on the article | item surface, making a sheet | seat body follow the article | item surface and suppressing a bubble accumulation and a wrinkle.

The (1) is sectional drawing which showed schematic structure of the bonding apparatus of the sheet body which concerns on 1st Embodiment of this invention, (2) In the bonding apparatus of the sheet body shown in the (1) It is the top view which showed the support jig | tool with which the articles | goods were supported in the state from which the sheet | seat body was removed. It is the figure which showed the manufacturing method of the product by which the sheet body was bonded on the surface of the articles | goods using the sheet body bonding apparatus shown in FIG. It is the figure which showed the manufacturing method of the product by which the sheet body was bonded on the surface of the articles | goods using the sheet body bonding apparatus shown in FIG. It is the figure which showed the manufacturing method of the product by which the sheet body was bonded on the surface of the articles | goods using the sheet body bonding apparatus shown in FIG. It is the figure which showed the manufacturing method of the product by which the sheet body was bonded on the surface of the articles | goods using the sheet body bonding apparatus shown in FIG. It is sectional drawing which showed schematic structure of the bonding apparatus of the sheet body which concerns on 2nd Embodiment of this invention.

  Next, embodiments of the invention will be described with reference to the drawings.

[First embodiment]
With reference to FIG. 1 (1) and (2), the sheet | seat bonding apparatus 10 which concerns on 1st Embodiment of this invention is the support jig 1 which supports the articles | goods 3, and the support jig 1 above. And a bag body 6 arranged to be movable. The support jig 1 includes a plurality of electromagnets 2 that are magnetic attraction generating units for generating magnetic attraction, and the bag 6 is filled with a magnetic fluid 4. The magnetic fluid 4 inside the bag body 6 is attracted to the support jig 1 side by the magnetic attractive force generated from the electromagnet 2, and the sheet body 5 is pressed from above, whereby the sheet body 5 is bonded to the article 3.
The article 3 has a shape in which a pair of opposed end portions of a rectangular flat plate are integrally raised. The upper surface of the article 3 is a surface on which the sheet body 5 is bonded, and is a concave surface. Examples of the article 3 include plastic, metal, and glass cover panels of smartphones and tablet computers. Further, as the sheet body 5, for example, a base sheet including a transparent conductive film layer of a capacitive sensor formed on one surface and an adhesive layer formed on the other surface, or a pattern layer and an adhesive layer sequentially. A laminated base sheet is exemplified. The base sheet material is made of polyester resin such as polyethylene terephthalate, polypropylene resin, acrylic resin, polycarbonate resin, polyamide resin, polyimide resin, olefin resin, urethane resin, and acrylonitrile butadiene styrene resin. Examples include at least one synthetic resin selected from the group, paper, nonwoven fabric, and the like. A design layer is a layer for expressing a character and a design, and is formed using the color ink which contains a coloring agent and the synthetic resin used as a binder as a constituent material at least. As a method for forming the pattern layer, for example, a known printing method such as an offset printing method, a gravure printing method, or a flexographic printing layer can be employed. The adhesive layer is a layer for adhering the sheet body 5 to the article 3 and is formed by appropriately selecting a synthetic resin capable of obtaining sufficient adhesion to the article 3 according to the material and surface shape of the article 3. As a method for forming the adhesive layer, for example, a coating method such as a gravure coating method, a roll coating method or a comma coating method, or a printing method such as a gravure printing method or a screen printing method can be employed.

  The support jig 1 has a rectangular parallelepiped shape, and a recess 7 is formed along the lower surface shape of the article 3 so that the article 3 can be fitted on the upper surface. The support jig 1 is made of aluminum. The support jig 1 may be any material that does not hinder the magnetic attraction generated from the electromagnet 2, such as nonmagnetic metal materials such as gold, silver, copper, magnesium, nonmagnetic stainless steel, ceramic, polyamide, polycarbonate, and modified polyphenylene ether. , Polybutylene terephthalate, GF reinforced polyethylene terephthalate, ultrahigh molecular weight polyethylene, syndiotactic polystyrene, polytetrafluoroethylene, polyoxybenzylmethylene glycol anhydride, polyetheretherketone, polyethersulfone, polysulfone, polyetherimide, polyimide General engineering such as polyphenylene sulfide, polybutylene terephthalate, acrylic resin, phenolic resin, epoxy resin, amino resin and polyester resin It may be such as a ring of plastic material. A plurality of electromagnets 2 are built in a matrix at regular intervals horizontally below the surface of the support jig 1 on which the article 3 is arranged. The arrangement area of the electromagnet 2 is configured to be larger than the arrangement surface of the article 3 and is arranged over the entire arrangement area of the article 3. The size of each electromagnet 2 and the number of electromagnets 2 arranged on one support jig 1 can be set to an appropriate size and number in accordance with the desired magnetic attraction adjustment accuracy and generation strength. it can. For example, when it is desired to finely adjust the location where the magnetic attractive force is generated, the size of one electromagnet 2 may be reduced and the number of pieces arranged on the support jig 1 may be increased. When a predetermined voltage is applied to the electromagnet 2, a magnetic attractive force that attracts the magnetic fluid 4 in the bag 6 is generated. The application of the voltage to the electromagnet 2 is configured to be performed for each individual electromagnet 2 or for each of a plurality of partial regions, and the region and timing for generating the magnetic attractive force can be adjusted.

The size of the bag body 6 is changed by increasing or decreasing the filling amount of the magnetic fluid 4. The bag body 6 is configured to be movable in the vertical direction and the horizontal direction above the article 3 disposed on the support jig 1. The bag body 6 may be directly connected to the support jig 1 or may be connected to a member different from the support jig 1 as long as the bag 6 can move in the pressing region of the sheet body 5. The size of the bag body 6 is set to a size that allows the bag body 6 to press the entire bonding surface of the sheet body 5 of the article 3 in a state where the bag body 6 is attracted to the support jig 1 side by magnetic attraction. ing. If the bag body 6 is moved in the horizontal direction and the sheet body 5 is pressed, the size of the bag body 6 may be smaller than the size capable of pressing the entire bonding surface. The bag body 6 is made of natural rubber. The material of the bag 6 includes acrylic rubber, nitrile rubber, isoprene rubber, urethane rubber, ethylene propylene rubber, chlorosulfonated polyethylene, epichlorohydrin rubber, chloroprene rubber, silicone rubber, styrene / butadiene rubber, butadiene rubber, fluorine rubber, and poly Synthetic rubber such as isobutylene can also be used.

  Next, the manufacturing method of the product by which the sheet body was bonded on the surface of the article | item using the sheet | seat bonding apparatus 10 is demonstrated using FIG.2, FIG.3, FIG.4 and FIG.

  First, referring to FIG. 2, the article 3 is arranged in the concave portion 7 of the support jig 1, and the sheet body 5 is arranged on the upper surface of the arranged article 3. When symbols and characters are formed on the sheet body 5, the sheet body 5 is positioned so as to be arranged at a predetermined position with respect to the article 3. The positioning is performed, for example, by forming a tab having a hole in the sheet body 5, forming a positioning pin on the support jig 1, and inserting the positioning pin into the hole of the sheet body 5. Is performed by robot control. Next, the bag body 6 is moved in the horizontal and vertical directions and positioned and arranged at the center above the sheet body 5.

  Next, referring to FIG. 3, the magnetic fluid increasing / decreasing unit 8 increases the amount of the magnetic fluid 4 in the bag body 6 with the bag body 6 positioned with respect to the sheet body 5 from above the sheet body 5. The bag body 6 is inflated. By inflating the bag body 6, the contact area between the sheet body 5 and the bag body 6 gradually increases, and the sheet body 5 is pressed against the article 3 from the center to the outside. As the magnetic fluid increasing / decreasing unit 8, a normal pressure adjusting mechanism such as a hydraulic pump or an air pump can be used.

  At the same time, referring to FIG. 4, a voltage is applied to the electromagnet 2 disposed in the central portion A of the support jig 1 to generate a magnetic attractive force. Then, the bag body 6 is drawn toward the center portion A to press the sheet body 5 from above, and the center portion of the sheet body 5 is bonded to the article 3.

  Then, with reference to FIG. 5, a voltage is applied to the electromagnet 2 disposed on the peripheral edge B of the support jig 1 to generate a magnetic attractive force. Then, the portion corresponding to the peripheral edge portion B of the bag body 6 is drawn toward the support jig 1 to press the sheet body 5 from above, and the peripheral edge portion of the sheet body 5 is bonded to the article 3.

  As described above, the bag body 6 expanded by the magnetic fluid increasing / decreasing unit 8 expands so as to press the sheet body 5 from the center of the article 3 to the outside. Furthermore, by adjusting the magnetic attractive force by moving it from the central part A to the peripheral part B of the support jig 1, the adjustment of the pressing part can be made more reliable. By moving the pressing portion from the center of the article 3 to the outside, the air between the article 3 and the sheet body 5 is pushed outward, and wrinkles and bubble accumulation can be prevented. Therefore, according to the method for laminating a sheet body as described above, the sheet body 5 can be bonded to the surface of the article 3 with uniform pressure even when the sheet body 5 is bonded to a concave surface or a curved surface with a high degree of bending. it can.

  According to the manufacturing method of the product in which the sheet body 5 is bonded to the surface of the article 3 using the sheet body bonding apparatus 10 as described above, for example, both the upper surface portion and the side surface portion having a rising edge are capacitive. A cover panel for a smartphone or tablet computer on which a sensor is formed can be easily manufactured.

[Second Embodiment]
The description of the same parts as those of the sheet body bonding apparatus 10 according to the first embodiment of the present invention will be omitted. With reference to FIG. 6, in the sheet | seat bonding apparatus 10 which concerns on 2nd Embodiment of this invention, the magnet 9 is used as a magnetic attractive force generation | occurrence | production part. The magnet 9 is attached to the lower side of the support jig 1 so as to be movable parallel to the bottom surface of the support jig 1. Similarly to the electromagnet 2 according to the first embodiment of the present invention, if the magnet 9 is moved from the central portion A to the peripheral portion B of the support jig 1, the bag body 6 is moved from the central portion of the sheet body 5. It is pushed outward. If it does so, the air between the articles | goods 3 and the sheet | seat body 5 will be extruded outside, and a wrinkle and bubble accumulation can be prevented.

  In addition, if the bag body 6 is set to a size capable of pressing the entire sheet body 5 bonding surface of the article 3 in a state where the bag body 6 is attracted to the support jig 1 side by magnetic attraction, the magnetic fluid increasing / decreasing portion 8 is set. Is not necessarily provided. The voltage application position of the electromagnet 2 does not necessarily have to be moved, and a current may be applied to all the electromagnets 2 simultaneously.

  In the first embodiment, a plurality of electromagnets 2 are built in a matrix at regular intervals horizontally below the surface of the support jig 1 on which the articles 3 are arranged. It is not limited to. For example, you may arrange | position so that the recessed part 7 of the support jig 1 may be surrounded.

  Furthermore, in the first and second embodiments described above, the electromagnet 2 and the magnet 9 are cited as the magnetic attractive force generation unit. However, the support jig 1 itself may be a magnetic attractive force generation unit. That is, by forming the support jig 1 from a magnetic material, the support jig 1 itself can generate a magnetic attractive force. Thereby, the sheet | seat bonding apparatus 10 can be comprised with fewer members.

  Furthermore, in said 1st Embodiment and 2nd Embodiment, it was made to move from the center part A of the support jig 1 to the peripheral part B as a moving direction of magnetic attraction, but it is not restricted to it. For example, the support jig 1 may be moved in one direction from one end to the other end. It is also possible to move the support jig 1 radially from the center to the outside.

Further, the sheet body 5 may be a laminate film in which the base sheet remains on the article 3 after bonding, or a transfer sheet in which a transfer layer is formed on the base sheet and the base sheet is peeled off from the article 3 after bonding. either will do. Moreover, it is good to form the adhesion layer in the bonding surface side of either the article | item 3 and the sheet | seat body 5 so that the article | item 3 and the sheet | seat body 5 may adhere | attach after pressing.

DESCRIPTION OF SYMBOLS 1 Support jig 2 Electromagnet 3 Article 4 Magnetic fluid 5 Sheet body 6 Bag body 7 Recessed part 8 Magnetic fluid increase / decrease part 9 Magnet 10 Sheet body laminating apparatus

Claims (6)

A sheet body laminating apparatus for laminating a sheet body on the surface of an article,
A support jig for supporting the article on which the sheet body is disposed;
A bag body movably disposed above the support jig and filled with a magnetic fluid;
A magnetic fluid increasing / decreasing unit for increasing / decreasing the amount of the magnetic fluid in the bag;
A magnetic attraction generating unit for generating magnetic attraction on the support jig;
The sheet body laminating device in which the bag body presses the sheet body from above when the magnetic fluid is attracted toward the support jig by the magnetic attraction. The sheet bonding apparatus according to claim 1, wherein the support jig is a magnetic attractive force generator. The magnetic attractive force generator is applied with a voltage in accordance with a pressing portion of the sheet member.
The sheet | seat bonding apparatus of Claim 1 which is a several electromagnet built in the holding jig. 2. The sheet body laminating device according to claim 1, wherein the magnetic attractive force generating unit is a magnet that moves in accordance with a pressing portion of the sheet body and is movably attached to the lower side of the support jig. A method of manufacturing a product in which a sheet body is bonded to the surface of an article,
Supporting the article on a support jig;
Arranging the sheet on the surface of the article;
Positioning a bag body filled with magnetic fluid inside the sheet body from above the sheet body;
Generating a magnetic attractive force in the support jig, and pressing the bag body against the sheet body by the magnetic fluid being attracted to the support jig side by the magnetic attractive force.
In the step of pressing the bag body against the sheet body, the bag body is inflated, and a method for producing a product in which the sheet body is bonded to the surface of an article. The method for manufacturing a product in which a sheet body is bonded to the surface of an article according to claim 5, wherein in the step of pressing the bag body against the sheet body, a position where magnetic attraction is generated is changed.

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