JPH0489230A - Manufacturing device of coated body - Google Patents

Abstract

PURPOSE:To remove easily remaining sheet pieces after the completion of coating work and improve the working efficiency by forming a projection section on the surface of an adherend placing section and disposing a release layer to be able to peel off a coating sheet on the surface of the projection section. CONSTITUTION:A retaining section 7 for retaining a peripheral edge section of a coating sheet 1 and a heater 8 are disposed in a box 6, and a lifting component 9 to be able to lift and lower with an adherend 2 placed thereon is provided. A flat plate-shaped adherend placing section 5 for placing the adherend 2 on the upper section of the lifting component 9 is provided. A release layer 4 to be able to peel off the coating sheet 1 is provided on the surface of a projection section 3 on the upper face of the adherend placing section 5. As for the release layer 4 to be provided on the surface of said projection section 3, release resin to be able to peel off the coating sheet 1 is used suitably, and for example, polyolefin family resin such as polytetrafluoroethylene is used.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for manufacturing a covering body whose surface is coated with a film, and more specifically to an apparatus for producing a covering sheet for decoration, display, etc. on the surface of an adherend. The present invention relates to a device for manufacturing a covering body by pasting it on a body.

(Prior art) When protecting the surface of articles such as furniture and steel plates, or when decorating or displaying articles, a method is generally adopted in which a sheet is attached to the surface of the article using an adhesive or an adhesive. has been done. Furthermore, in order to further improve the adhesion of the sheet to the adherend, a method has been proposed in which the sheet is attached under vacuum or pressure.

For example, as disclosed in JP-A-53-61486, a method has been proposed in which a spreadable coating sheet is coated on the surface of an article by vacuum forming.

(Problem to be Solved by the Invention) However, when manufacturing coated bodies coated with such sheets continuously, after the sheet is coated on the surface of the adherend in the apparatus, It is necessary to remove the covering from the top of the mounting table and then remove the sheet piece remaining on the mounting table in the apparatus. However, since the sheet pasted to the adherend usually has adhesive properties, the sheet pieces stick to the mounting table and are difficult to peel off, and it takes a lot of time and effort to remove the sheet pieces. It was necessary.

The present invention has been made in order to solve the above-mentioned drawbacks, and is a method for manufacturing a covering by covering an adherend with a spreadable sheet. It is an object of the present invention to provide a manufacturing device for a covering body that is easy to manufacture and that can improve work efficiency.

(Means for Solving the Problems) The coating manufacturing apparatus of the present invention includes an adherend placement part configured to be able to be raised and lowered by placing an adherend thereon, and an upper part of the adherend M placement part. and a holding part which is provided at a position to hold the peripheral edge of the covering sheet, and when the adherend placing part is raised, the adherend placed on the upper surface of the adherend placing part is held. A manufacturing apparatus for a covering body configured to cover a surface thereof with the covering sheet, wherein a convex portion is formed on the surface of the adherend mounting portion, and a surface of the convex portion is configured to coat the covering sheet. In contrast, a peelable release layer is provided, thereby achieving the above object.

An example of the apparatus for manufacturing a covering body of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the coating manufacturing apparatus includes a box 6 provided with a holding part 7 for holding the peripheral edge of a coating sheet 1 and a heater 8, and a box 6 disposed inside the box 6 and equipped with a heater 8. It is equipped with an elevating member 9 on which the attached body 2 is placed and which can be moved up and down.

A flat plate-shaped adherend placement section 5 on which the adherend 2 can be placed is provided on the upper part of the elevating member 9 . As shown in FIGS. 2 and 3, a convex portion 3 is formed on the upper surface of the adherend placement portion 5, and a release layer that can be peeled off from the covering sheet 1 is formed on the surface of the convex portion 3. A mold layer 4 is provided.

The planar shape of the convex portion 3 may be any shape such as a mesh shape, a lattice shape, a dot shape, etc. as shown in FIGS. 2 and 3(a),
Also, the distance between the adjacent convex portions 3.3 (J21 shown in FIG. 3(b)) and the height dimension of the convex portions 3 from the plane of the adherend mounting portion 5 (as shown in FIG. 3(b)) j22) shown can be changed as appropriate depending on the shape of the adherend 2, etc. For example, the protrusions 3 may be formed with a mesh shape with an interval of 0.5 to 1.0 mm and a depth of about 1 cm, or cylindrical protrusions with a radius of 3 mm and a depth of about 11 per 1 CI11 square. It may be formed at a ratio of Further, the convex portion 3 may be formed on the entire surface of the adherend placement portion 5, or may be formed only on the portion that comes into contact with the covering sheet 1.

As the mold release layer 4 provided on the surface of the convex portion 3, a mold release resin that can be peeled off from the coating sheet 1 is suitably used.
For example, fluororesins such as polytetrafluoroethylene, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene perfluoroalkoxyethylene copolymer, and silicone MNL such as silicone face.
Examples include polyolefin resins such as polyethylene and polypropylene.

The release layer 4 may be formed on the entire surface of the adherend mounting portion 5, or may be formed only on the surface of the convex portion 3 in contact with the covering sheet 1.

The covering sheet 1 used in the present invention is usually a thermoplastic sheet that has adhesive properties at room temperature or under heating;
A semi-cured thermosetting sheet or an uncured thermosetting sheet is preferably used.

Examples of thermoplastic sheets include (modified) polyethylene, (modified) polypropylene, urethane, (modified) polyvinyl chloride, polyamide, isoprene, neorene,
(Modified) chloroprene rubber, (modified) butadiene rubber,
(Modified) nitrile rubber, styrene butadiene rubber, butyl rubber, polyvinylidene fluoride, ethylene vinyl acetate copolymer, ethylene (meth)acrylic acid copolymer, poly 4
-Methylpentene=11 Examples include sheets made of polystyrene, poly(meth)acrylic acid (ester), vinyl chloride urethane copolymer, and the like.

As the thermosetting material, for example, an uncured or semi-cured sheet made of an acrylic resin having a plurality of hydroxyl groups, a fluororesin, a fluorine resin, and a block isocyanate is used.

The covering sheet 1 used in the present invention may be laminated in multiple layers, and may further have an adhesive layer or an adhesive layer laminated on the lower surface to improve adhesion to the adherend. Good too. Furthermore, in order to improve the spreadability of the coating sheet 1, a plasticizer may be added, and a coloring agent and various fillers may also be added.

Examples of the adherend 2 to which the covering sheet 1 is attached include plastic, metal, wood, glass, painted surfaces, and the like.

The covering sheet 1 can be coated on the adherend 2 using the above-described manufacturing apparatus, for example, as follows.

■Place the adherend 2 on the upper surface of the adherend placement part 5 arranged in the box 6, and apply the sheet 1 by holding the peripheral edge of the covering sheet 1 in the holding part 7. The covering sheet 1 is disposed above the body 2 and the surface of the adherend 2 is covered with the covering sheet 1 by raising the adherend mounting portion 5 .

■ Place the adherend 2 on the upper surface of the adherend placement section 5 disposed in the box 6, and place the covering sheet 10 on the holding section 7.
The sheet 1 is placed above the adherend 2 while holding the peripheral edge, and the box 6 is placed in a vacuum state and the adherend placement part 5 is raised, thereby applying the coating sheet to the surface of the adherend 2. 1.

■As in the above ■, after setting the adherend 2 and the covering sheet l in the box 6, the upper box (the upper surface side of the covering sheet l) and the lower box (the lower surface side of the covering sheet 1) of the box 6 are set. ) is brought into a vacuum state, the adherend mounting section 5 is raised, and the upper box and lower box are brought to normal pressure to coat the surface of the adherend 2 with the covering sheet 1.

■As described in (■) above, after setting the adherend 2 and the covering sheet 1 in the box 6, raise the adherend placement part 5 and use a pressurizing member such as a rubber mold from the top side of the sheet 1. The sheet 1 is attached to the adherend 2 by applying pressure.

Note that pressure may be applied from the top surface of the sheet 1 after pasting the sheet 1 to the adherend 2, and when the sheet 1 is pasted to the adherend 2, it may be heated with a heater 8, especially when the sheet is heated at room temperature. l
When the spreadability of the sheet 1 is insufficient, it is preferable to heat the sheet 1 in advance before applying it.

Next, the covering sheet 1 on the adherend placement section 5 is cut using a cutting tool such as a cutter as necessary, and the covering sheet 1 covered with the sheet 1 is then placed on the adherend placement section 5. Take it out. Next, the sheet piece adhering to the surface of the adherend mounting portion 5 is removed by hand or using a tool.

The sheet piece is in contact with the surface of the convex part 3 formed on the adherend placement part 5, and the sheet piece is adhered in a state where the contact area between the sheet piece and the surface of the adherend placement part 5 is very small. Since the sheet piece is placed on the surface of the body placement section 5, the sheet piece can be removed from the surface of the adherend placement section 5 with a small peeling force. Moreover, since the release layer 4 is provided on the surface of the convex portion 3, the adhesive force of the covering sheet 1 to the convex portion 3 is very low, even if the covering sheet 1 has adhesive properties. The sheet 1 can be easily peeled off without remaining on the surface of the convex portion 3.

Therefore, when the covering bodies are manufactured continuously in the box 6, the sheet pieces can be removed in a short time until the next covering step, so productivity can be improved.

(Example) Hereinafter, the present invention will be explained in detail based on examples.

Actual ILL Using the manufacturing apparatus shown in FIG. 1, a convex portion with a height of 1 cm was formed in a 1 cm square mesh pattern on the surface of the adherend placement portion. Further, polytetrafluoroethylene was coated over the entire surface of the adherend mounting portion. An iron hemisphere with a diameter of 10 hm was placed as an adherend on this adherend mounting portion with its opening facing downward.

On the other hand, thermosetting acrylic polyol (manufactured by Nippon Shokubai Kagaku Kogyo ■, Alotane 2040-145, Tg・40″C,
Mv=339.000) 100 parts by weight, and 50 parts by weight of a pro-quisocyanate cross-linking agent (manufactured by Ota Pharmaceutical Co., Ltd., Takenate B815N1, a block of hydrogenated diphenylmethane diisocyanate) (this cross-linking agent connects the hydroxyl groups of the acrylic polyol 1.0 equivalents of isocyanate groups) were mixed with stirring.

This mixture was applied to a polyethylene terephthalate film (manufactured by Soken Kako ■, film thickness 50 μl) that had been subjected to silicone release treatment.
The mixture was coated on the release surface of the mold and dried at 80°C for 5 minutes to obtain a thermosetting sheet with a thickness of 50 μm. Furthermore, an acrylic adhesive (manufactured by Soken Kagaku Kogyo ■, S
K-Dyne 1310) was applied in layers, dried at 80°C for 10 minutes to create an adhesive layer with a thickness of 30 μm, and the polyethylene terephthalate film was peeled off to create an uncured coating with a thickness of 80 μm. Got a sheet.

The covering sheet thus obtained was placed in a box, and the peripheral edge of the sheet was held by a holding portion.

Next, the adherend was raised and the covering sheet was coated on the surface of the adherend. The sheet around the obtained covering was cut with a cutter, and the covering was taken out from above the adherend placement section. Then, when the sheet pieces remaining on the adherend placement section were removed by hand, the sheet pieces could be easily removed and did not remain on the adherend placement section.

Using the manufacturing apparatus shown in FIG. 1, a convex portion with a height of 0.5 ml was formed on the surface of the adherend placement portion in a 0.5 c+a square mesh pattern. Further, a silicone face was coated over the entire surface of the adherend placement section. An iron hemisphere with a diameter of 100 mm was placed as an adherend on this adherend mounting portion with its opening facing downward.

A covering sheet obtained in the same manner as in Example 1 was placed in a box, and the peripheral edge of the sheet was held by a holding portion. Next, the adherend was raised and the covering sheet was coated on the surface of the adherend. The sheet around the obtained covering was cut with a force of 7 tres, and the covering was taken out from above the adherend placement section. Then, when the sheet pieces remaining on the adherend placement section were removed by hand, the sheet pieces could be easily removed and did not remain on the adherend placement section.

Using the manufacturing equipment shown in Fig. 1 of K-Sara Takuminori, one cylindrical protrusion with a diameter of 3 m + o and a height of 1 mm was formed on the surface of the adherend placement part.
It was formed at a ratio of 1 piece per c+o2. Further, a polytetrafluoroethylene-hexafluoropropylene copolymer was coated over the entire surface of the adherend mounting portion.

An iron hemisphere with a diameter of 100 I was placed as an adherend on this adherend placement portion with its opening facing downward.

[Covering sheet made by laminating an acrylic adhesive layer on a vinyl chloride sheet (manufactured by Block Chemical Industry ■, Tack Paint TP)
-1) was placed in a box, and the peripheral edge of the sheet was held by the holding part. Next, the upper box and the lower box were evacuated, and the adherend was then raised to bring the insides of both boxes to normal pressure, and the covering sheet was coated on the surface of the adherend. The sheet around the obtained covering was cut with a force and a saw, and the covering was taken out from above the adherend placement part. Then, when the sheet piece remaining on the adherend placement part was removed by hand, the note piece could be easily removed and did not remain on the adherend placement part.

Hita 1 The manufacturing apparatus shown in FIG. 1 was used, and a flat plate-shaped adherend mounting portion whose surface was plated with aluminum was used. An iron hemisphere with a diameter of 100 cm was placed as an adherend on this adherend mounting portion with its opening facing downward.

On the other hand, thermosetting acrylic polyol (manufactured by Nippon Shokubai Chemical Co., Ltd., 7otan 2040-145, Tg = 40'C,
Mv=339.000) 100 parts by weight, acrylic polyol oligomer (manufactured by Nippon Carbide Kogyo ■, dicalide H870, Tg=-45°C, MW=2,200-2
．． 500) 30 parts by weight, and 86 parts by weight of a blocked isocyanate crosslinking agent (manufactured by Takeda Pharmaceutical Co., Ltd., Takenate B815N, oxime block of hydrogenated diphenylmethane diisocyanate) (this crosslinking agent has 1.0 parts by weight based on the hydroxyl group of the acrylic polyol) with an equivalent amount of incyanate groups) were mixed with stirring. This mixture was applied to the release surface of a silicone release-treated polyethylene terephthalate film (manufactured by Soken Kako ■, film thickness: 5 μm) and dried at 80°C for 5 minutes to obtain a thermosetting sheet with a thickness of 80 μm. Ta. Furthermore, an acrylic adhesive (manufactured by Soken Kagaku Kogyo ■, SK Dyne 1310) was applied on the thermosetting notebook.
) was layered and dried at 80°C for 10 minutes to create an adhesive layer with a thickness of 20 μm, and by peeling off the polyethylene terephthalate film, an uncured coating sheet with a thickness of 100 μm was obtained. Ta.

The covering sheet thus obtained was placed in a box, and the peripheral edge of the sheet was held by a holding portion.

Next, the adherend was raised and the covering sheet was coated on the surface of the adherend. When I cut the sheet around the obtained covering with a cutter and took out the covering from above the adherend placement part, and tried to manually remove the sheet pieces remaining on the adherend placement part, the sheet Approximately 1/3 of the total area of the piece remained on the adherend placement portion without peeling off.

(Effects of the Invention) According to the present invention, sheet pieces that may remain on the upper surface of the adherend placement part can be easily and quickly removed, and the covering body can be removed without particularly expensive equipment. Production efficiency can be increased.

Figure 1 is a schematic sectional view showing an example of the coating manufacturing apparatus of the present invention, Figure 2 is a plan view of the main part of the adherend placement section, and Figure 3 (
a) and (b) are an enlarged plan view and an enlarged cross-sectional view showing a convex portion of an adherend mounting portion.

l... Covering sheet, 2... Adherent, 3... Convex portion, 4... Release layer, 5... Adherent placement part, 6... Box, 7... ...Holding part.

that's all

Claims (1)

[Scope of Claims] 1. An adherend placement part configured to be able to be moved up and down while placing an adherend thereon, and an adherend placement part provided above the adherend placement part and arranged around the covering sheet. and a holding part that holds the end part, and is configured to cover the surface of the adherend placed on the upper surface of the adherend placement part with the covering sheet as the adherend placement part rises. A manufacturing apparatus for a covering body, wherein a convex portion is formed on the surface of the adherend placement portion, and a release layer that is removable from the coating sheet is provided on the surface of the convex portion. Equipment for manufacturing coatings.