JP5720453B2 - Manufacturing method of decorative plywood, resin liquid surface finishing means and manufacturing apparatus thereof - Google Patents

Description

  The present invention relates to a method for producing a decorative plywood by a film method, and more specifically, a decorative plywood particularly suitable when the surface finish film for finishing the surface of a resin liquid is made of a thermoplastic resin having less stretchability than polyvinyl alcohol. It relates to a manufacturing method.

  As a method for producing a decorative plywood, a decorative paper such as titanium paper, kraft paper or gypsum board paper is pasted on a substrate such as plywood, particle board or MDF (medium density fiber board) and directly or on the surface of the decorative paper. A resin liquid in which a curing agent or the like is mixed with an unsaturated polyester resin is applied via an undercoat paint, the resin liquid is covered with a surface finish film made of a thermoplastic resin, defoamed, and the surface finish after the resin liquid is cured. There is a film method in which a film is peeled to produce a decorative plywood.

In this film method, using the resin liquid surface finishing means formed by stretching the surface finishing film on the upper surface of a rectangular frame, the upper surface is pressed in a state where the resin liquid is covered by the surface finishing film. In general, the resin liquid is defoamed by rolling a rubber roller.
Further, without using a rectangular frame as the resin liquid surface finishing means in such a film method, the two opposite end portions of the surface finishing film are thickly reinforced by the fusing means, and there are places in this reinforcing portion. In some cases, the surface finishing film is stretched by forming a perforation hole and stretching a spring between the perforation hole and a frame installed outside the surface finishing film. (For example, refer to Patent Document 1).

JP 2001-162603 A

In the case where the resin liquid surface finishing means is composed of a rectangular frame and a surface finishing film stretched on the upper surface thereof, the surface finishing film is more than polyvinyl alcohol (PVA) such as polyethylene terephthalate (PET) or polypropylene (PP). In the case of a thermoplastic resin with low stretchability, there is a problem that wrinkles are likely to occur and the quality of the decorative plywood is not stable.
Further, in the resin liquid surface finishing means such as Patent Document 1, since the surface finishing film is stretched by a spring, even if the surface finishing film is made of a thermoplastic resin having less stretchability than PVA, While the quality is less likely to occur and the quality is stabilized, the attachment work of the reinforcing part for thickly reinforcing the opposing ends of the surface finish film, the work of forming the drilling hole in the reinforcing part, and the drilling hole Since it is necessary to stretch a spring between the frame and the frame, there is a problem that the manufacturing cost increases.

  Therefore, in view of the above-described situation, the present invention intends to solve the problem that even if the surface finish film is made of a thermoplastic resin having a lower stretchability than PVA, wrinkles hardly occur and the quality is stable. However, the present invention provides a method for manufacturing a decorative plywood that does not increase the manufacturing cost, a resin liquid surface finishing means that includes a rectangular frame and a surface finishing film stretched on the upper surface thereof, and a manufacturing apparatus therefor.

  In order to solve the above problems, the method for producing a decorative plywood according to the present invention applies decorative paper to the surface of a substrate, and applies a resin liquid directly or through an undercoat to the surface of the decorative paper. Using a resin liquid surface finishing means comprising a frame and a surface finishing film stretched on the upper surface thereof, the resin liquid is covered with the surface finishing film and defoamed, and after the resin liquid is cured, the surface finishing film is removed. A method of manufacturing a decorative plywood that peels off and manufactures a decorative plywood, wherein the resin liquid surface finishing means is an elastically deformed state by pressing or pulling inward the middle part of the two long sides of the rectangular frame Then, after sticking the surface finish film on the upper surface of the rectangular frame, the one obtained by releasing the pressing or tension is used.

According to such a configuration, as the resin liquid surface finishing means, the surface finish is applied to the upper surface of the rectangular frame body in a state where the middle part of the two long sides of the rectangular frame body is inwardly pressed or pulled to be elastically deformed. Since the one that releases the pressure or tension after the film is attached is used, in the use state of the resin liquid surface finishing means that is released from the pressure or tension, the restoring force of the elastically deformed rectangular frame body Since the surface finish film is pulled outwardly toward the two long sides of the rectangular frame, wrinkles are unlikely to occur in the surface finish film.
Therefore, the quality of the manufactured plywood is stabilized by using such a resin liquid surface finishing means.
In addition, even if the surface finish film is made of a thermoplastic resin that is less stretchable than PVA, such as PET or PP, it is difficult to use conventionally because wrinkles are likely to occur and the quality of the decorative plywood is not stable. It is possible to use a resin liquid surface finishing means having a general configuration composed of a rectangular frame and a surface finishing film stretched on the upper surface thereof.

  In addition, the resin liquid surface finishing means according to the present invention provides a surface of the resin liquid applied directly or via an undercoat paint on the surface of the decorative paper affixed to the substrate surface of the decorative plywood in order to solve the above problem. A resin liquid surface finishing means comprising a rectangular frame for finishing and a surface finishing film stretched on the upper surface thereof, wherein an intermediate portion of the two long sides of the rectangular frame is pressed or pulled inward. The surface finish film is stuck on the upper surface of the rectangular frame body in an elastically deformed state, and then the pressing or tension is released.

According to such a configuration, the resin liquid surface finishing means performs surface finishing on the upper surface of the rectangular frame in a state where the middle part of the two long sides of the rectangular frame is pressed or pulled inward to be elastically deformed. Since the pressure or tension is released after the film is attached, in the state of use of the resin liquid surface finishing means where the pressure or tension is released, due to the restoring force of the elastically deformed rectangular frame body Since the surface finish film is pulled outwardly toward the two long sides of the rectangular frame, wrinkles are unlikely to occur in the surface finish film.
Therefore, the quality of the manufactured plywood is stabilized by using such a resin liquid surface finishing means.
In addition, even if the surface finish film is made of a thermoplastic resin that is less stretchable than PVA, such as PET or PP, it is difficult to use conventionally because wrinkles are likely to occur and the quality of the decorative plywood is not stable. It is possible to use a resin liquid surface finishing means having a general configuration composed of a rectangular frame and a surface finishing film stretched on the upper surface thereof.

  Furthermore, in order to solve the above problem, the apparatus for producing a resin liquid surface finishing means according to the present invention is a resin liquid applied directly or via an undercoat paint to the surface of a decorative paper stuck to the substrate surface of a decorative plywood. For finishing the surface of the resin liquid surface finishing means comprising a rectangular frame and a surface finishing film stretched on the upper surface thereof, the table on which the rectangular frame is placed, A pair of pressing pieces for pressing the middle part of the two long sides of the rectangular frame body from the outside, and the pair of pressing pieces, respectively, and a female thread portion in a hole in the short side direction of the rectangular frame body A pair of nuts each screwed in a reverse screw, and a male screw part screwed to the pair of nuts are formed coaxially, so that the long bolt in the short side direction, the pressing piece and the nut do not rotate. These are the same as the bolt rotates A linear support means for linear motion rotatably supported in side direction, characterized by comprising a handle for rotating the bolt.

According to such a configuration, the rectangular frame is placed on the table, the handle is operated to move the pressing piece inward, and the intermediate portion of the two long sides of the rectangular frame is pressed from the outside. The rectangular frame body can be easily elastically deformed to a predetermined displacement amount, and a force in the direction of pushing back the pair of pressing pieces and the nut acts by the restoring force due to the elastic deformation of the rectangular frame body. Even so, since the bolt and the handle cannot be rotated from the nut side, the state in which the rectangular frame is elastically deformed can be maintained.
And after performing the operation | work which sticks a surface finish film on the upper surface of the rectangular frame of the state elastically deformed in this way, by operating a handle and moving a press piece outward, it cancels | releases a press. The surface of the resin liquid obtained by releasing the pressing after a surface finishing film is stuck on the upper surface of the rectangular frame in a state where the middle part of the two long sides of the rectangular frame is pressed inward and elastically deformed Finishing means can be manufactured easily and reliably.
Therefore, the workability of the work of attaching the surface finish film to the upper surface of the rectangular frame is improved, and the yield of the surface finish film to be used is improved.

  As described above, according to the manufacturing method of the decorative plywood and the resin liquid surface finishing means and the manufacturing apparatus thereof according to the present invention, the general configuration including the rectangular frame and the surface finishing film stretched on the upper surface thereof is provided. While using the resin liquid surface finishing means, the surface finishing film is pulled outwardly toward the two long sides of the rectangular frame body by the restoring force of the elastically deformed rectangular frame body when the resin liquid surface finishing means is in use. Therefore, wrinkles are less likely to occur in the surface finish film, and even if the surface finish film is made of a thermoplastic resin that is less stretchable than PVA, wrinkles are less likely to occur and the quality is stabilized and a simple configuration is achieved. There is a remarkable effect that an increase in manufacturing cost can be suppressed.

It is a perspective view which shows the structure of the manufacturing apparatus of the resin liquid surface finishing means which concerns on embodiment of this invention. It is a top view similarly and has shown the state which mounted the rectangular frame on the table. Similarly, it is a plan view, and shows a state where an intermediate portion of two long sides of the rectangular frame is pressed from the outside by a pressing piece and elastically deformed. It is a fragmentary longitudinal cross-section which shows the mechanism for driving a pressing piece. (A) is a state where a surface finish film is attached to the upper surface of the elastically deformed rectangular frame, (b) is a state where the surface finish film is cut according to the rectangular frame, and (c) is a pressing piece. The state where the press by is released is shown.

The method for producing a decorative plywood according to the present invention is a film method, in which a decorative paper is attached to a substrate with an adhesive, and a resin liquid is applied to the surface of the decorative paper directly or via an undercoat, thereby forming a rectangular frame. And a resin liquid surface finishing means comprising a surface finishing film stretched on the upper surface thereof, and a rubber roller is rolled so as to press the upper surface in a state where the resin liquid is covered with the surface finishing film. The resin liquid is defoamed, and after the resin liquid is cured, the surface finish film is peeled off to produce a decorative plywood.
Here, the substrate is plywood, particle board, hard board, MDF (medium density fiber board) or gypsum board, etc. The decorative paper is titanium paper, kraft paper, linter paper, gypsum board paper, etc. A mixture of an unsaturated polyester resin with a curing agent or the like, both of which are generally used for decorative plywood.
Moreover, although the said rectangular frame is iron, for example, what is necessary is just to provide the characteristics, such as required intensity | strength and rigidity, and heat resistance.
Furthermore, the surface finish film is a thermoplastic resin such as polyvinyl alcohol (PVA), polyethylene terephthalate (PET), polypropylene (PP), or polyethylene (PE). In the present invention, PET is particularly suitable.

Next, the detail of the manufacturing apparatus of the resin liquid surface finishing means concerning embodiment of this invention is demonstrated.
As shown in FIG. 1 to FIG. 4, the manufacturing apparatus B for the resin liquid surface finishing means has a table 3 on which the rectangular frame 1 is placed, and an intermediate portion between the two long sides of the rectangular frame 1 from the outside. A pair of pressing pieces 4A and 4B for pressing, and a pair of pressing pieces 4A and 4B, respectively, and a pair of female screw portions 5a and 5b screwed in reverse screws in holes in the short side direction of the rectangular frame 1, respectively. Bolts 6, press pieces 4A, 4B, which are long in the short side direction of the rectangular frame 1, and are formed with coaxially formed male screw portions 6a, 6b of reverse screws, which are screwed into the nuts 5A, 5B and nuts 5A, 5B, respectively. In order to prevent the nuts 5A and 5B from rotating, the pressing pieces 4A and 4B, which are linear motion support means for supporting the nuts 5A and 5B so as to be linearly movable in the short side direction along with the rotation of the bolt 6, are inserted. Long holes 8a, 8b in the short side direction formed on the upper surface, and bolts Of handles 7, etc. to rotate the.
Further, the surface finishing film 2 adhered to the upper surface of the rectangular frame 1 is used by being drawn out from the state wound around the horizontal axis core 11 rotatably supported on the upper end portion of the support leg 12.

As shown in the explanatory diagram of the mechanism for driving the pressing pieces 4A and 4B in FIG. 4, when the handle 7 is rotated in the direction of arrow C, the bolt 6 connected to the handle 7 rotates in the same direction. The nuts 5A and 5B screwed into the male screw portions 6a and 6b of the reverse screw respectively move inward together with the pressing pieces 4A and 4B (see arrow C).
Similarly, when the handle 7 is rotated in the direction of the arrow D, the bolt 6 connected to the handle 7 rotates in the same direction, so that the nuts 5A and 5B screwed into the male screw portions 6a and 6b of the reverse screw respectively. It moves outward together with the pressing pieces 4A and 4B (see arrow D).

Next, the manufacturing method of the resin liquid surface finishing means performed using the manufacturing apparatus B of the resin liquid surface finishing means having the above configuration will be described.
First, as shown in FIGS. 1 and 2, the rectangular frame 1 is placed on the table 3 in a state where the rectangular frame 1 is positioned by the L-shaped positioning members 9, 9,... Provided at the four corners on the table 3. Place.
Next, the handle 7 is rotated in a predetermined direction (for example, the direction of arrow C in FIG. 4), and an intermediate portion (for example, the center) of the two long sides of the rectangular frame 1 is pressed inward as shown in FIG. To elastically deform to a predetermined displacement.
In this state, even if a force in the direction of pushing back the pair of pressing pieces 4A and 4B and the nuts 5A and 5B (an outward force) is applied by the restoring force due to the elastic deformation of the rectangular frame 1, the nuts 5A and 5B Since the bolt 6 and the handle 7 cannot be rotated from the side, the state in which the rectangular frame 1 is elastically deformed can be maintained.

Next, for example, a rubber adhesive is applied to the upper surface of the rectangular frame 1 in a state where the rectangular frame 1 is elastically deformed as shown in FIG. To the upper surface of the rectangular frame 1 so as to cover the upper surfaces of the receiving plates 10 and 10 and the upper surface of the rectangular frame 1 that are set to substantially the same height as the upper surface of the rectangular frame 1. Adhere.
Next, as shown to Fig.5 (a), the surface finishing film 2 is cut | disconnected by the cutter 13 according to the rectangular frame 1, and it is made the state of FIG.5 (b).
In this state, when the handle 7 of FIGS. 1 to 4 is operated to move the pressing pieces 4A and 4B outward to release the pressing by the pressing pieces 4A and 4B to the rectangular frame 1, the rectangular frame body Since the two long sides of the rectangular frame 1 return outward as indicated by arrows E and E in FIG. 5 (b) due to the restoring force of elastic deformation 1, the surface as shown in FIG. 5 (c). The resin liquid surface finishing means A in a state where the finishing film 2 is pulled outwardly toward the two long sides of the rectangular frame 1 is completed.

According to the manufacturing apparatus B of the resin liquid surface finishing means having the above-described configuration, the intermediate portion of the two long sides of the rectangular frame 1 is pressed inward by performing the process according to the simple configuration described above. It is possible to easily and reliably manufacture the resin liquid surface finishing means A in which the pressing is released after the surface finishing film 2 is adhered to the upper surface of the rectangular frame 1 in an elastically deformed state.
Therefore, the workability of the work of attaching the surface finishing film 2 to the upper surface of the rectangular frame 1 is improved, and the yield of the surface finishing film 2 to be used is improved.

Further, according to the resin liquid surface finishing means A manufactured in this way, the surface finishing film 2 is formed into a rectangular frame body by the restoring force of the elastically deformed rectangular frame body 1 when the resin liquid surface finishing means A is in use. 1 is pulled outwardly toward the two long sides of 1, so that the surface finish film 2 is less likely to wrinkle.
Therefore, the quality of the manufactured decorative plywood is stabilized by using such a resin liquid surface finishing means A.
In addition, even if the surface finish film 2 is made of a thermoplastic resin that is less stretchable than PVA such as PET, PP, or PE, wrinkles are likely to occur and the quality of the decorative plywood is not stable. Since the resin liquid surface finishing means A having a general configuration composed of the rectangular frame 1 and the surface finishing film 2 stretched on the upper surface thereof, which is difficult to use, can be used, the manufacturing cost can be reduced with a simple configuration. Can be suppressed.

  The predetermined displacement amount, which is a size for elastically deforming the two long sides of the rectangular frame 1 described above, depends on the rectangular frame 1 and the surface finish film 2 to be used. By producing the resin liquid surface finishing means A with different sizes for elastic deformation of the sides, and actually manufacturing the decorative plywood, and evaluating the number of times that the resin liquid surface finishing means A can be repeatedly used It can be determined as the optimum amount of displacement.

  In the above description, the surface finishing film 2 is formed on the upper surface of the rectangular frame 1 with the resin liquid surface finishing means A elastically deformed by pressing the middle part of the two long sides of the rectangular frame 1 inward. Although the case where the pressure is released after sticking is shown, the resin liquid surface finishing means A is the middle part of the two long sides of the rectangular frame, for example, the two lengths of the rectangular frame 1 A surface or finish is provided on the upper surface of the rectangular frame 1 in a state where a hole or a latching portion is provided on the lower surface of the middle portion of the side and the two long sides are pulled inward by a tension coil spring or the like and elastically deformed. The film 2 may be formed by releasing the tension after the film 2 is attached.

A Resin liquid surface finishing means B Resin liquid surface finishing means manufacturing apparatus 1 Rectangular frame 2 Surface finishing film 3 Tables 4A, 4B Press pieces 5A, 5B Nut 5a, 5b Female thread 6 Bolt 6a, 6b Male thread 7 Handle 8 Frame 8a, 8b Long hole (linear motion support means)
9 Positioning member 10 Base plate 11 Horizontal axis 12 Support leg 13 Cutter

Claims (3)

A resin liquid surface comprising a rectangular frame and a surface finishing film stretched on the top surface of the decorative paper, which is applied to the surface of the substrate and coated with a resin liquid directly or via an undercoat. Using a finishing means, covering the resin liquid with the surface finishing film, defoaming, and peeling the surface finishing film after the resin liquid is cured to produce a decorative plywood,
As the resin liquid surface finishing means, the surface finishing film is stuck on the upper surface of the rectangular frame in a state where the middle part of the two long sides of the rectangular frame is pressed or pulled inward and elastically deformed. A method for producing a decorative plywood, which is obtained by releasing the pressing or pulling after being applied. From a rectangular frame and a surface finish film stretched on the upper surface of the resin frame, which is applied directly or through an undercoat paint to the surface of the decorative paper affixed to the substrate surface of the decorative plywood A resin liquid surface finishing means comprising:
After pressing or pulling the middle part of the two long sides of the rectangular frame inward and elastically deforming it, the pressing or pulling is released after the surface finish film is adhered to the upper surface of the rectangular frame. Resin liquid surface finishing means. From a rectangular frame and a surface finish film stretched on the upper surface of the resin frame, which is applied directly or through an undercoat paint to the surface of the decorative paper affixed to the substrate surface of the decorative plywood An apparatus for producing a resin liquid surface finishing means comprising:
A table on which the rectangular frame is placed;
A pair of pressing pieces for pressing the middle part of the two long sides of the rectangular frame from the outside;
A pair of nuts, each coupled to the pair of pressing pieces, each having a female thread portion screwed into a reverse screw in a hole in a short side direction of the rectangular frame;
A male screw part that is screwed with the pair of nuts is formed coaxially, and a bolt that is long in the short side direction;
Linear movement support means for supporting the pressing piece and the nut so as to be linearly movable in the short side direction with the rotation of the bolt so as not to rotate;
An apparatus for producing a resin liquid surface finishing means, comprising a handle for rotating the bolt.

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