JP6817478B1 - Sheet decorative board material manufacturing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a sheet decorative board material in which a decorative sheet is not peeled off. SOLUTION: A manufacturing apparatus 1 has a transport unit 10 for transporting a plurality of base materials 51, ..., 51 from a rear side to a front side at predetermined intervals, a sticking roll 23 and a pressing roll 24, and the transport unit 10 The sheet adhesive unit 20 for adhering the decorative sheet 52 with the water-based adhesive 53 over the surfaces 51a, ..., 51a of the plurality of base materials 51, ... It is provided with a sheet cutting portion 31 that cuts the decorative sheet 52 back and forth between the two adjacent base materials 51 and 51 while moving from the rear side to the front side. Between the sticking roll 23 and the pressing roll 24, pressing members 26, 27 for pressing the plurality of base materials 51, ..., 51 which are sequentially conveyed from above the decorative sheet 52 are provided. [Selection diagram] Fig. 1

Description

The present invention relates to an apparatus for manufacturing a sheet decorative board material for continuously adhering a decorative sheet to the surfaces of a plurality of base materials.

Conventionally, a sheet decorative board material manufacturing apparatus for continuously adhering a decorative sheet to the surfaces of a plurality of plate-shaped base materials has been used for manufacturing a sheet decorative board material used for a floor material or the like. In a conventional manufacturing apparatus, a long decorative sheet having an adhesive coated on the back surface is attached to the front surface of a plurality of base materials continuously conveyed in a predetermined direction, and then a long base material is formed between the base materials. The sheet decorative board material is continuously manufactured by cutting the decorative sheet and individualizing the decorative sheet for each base material (see, for example, Patent Document 1 below).

Japanese Unexamined Patent Publication No. 2011-88359

By the way, some of the above-mentioned sheet decorative board material manufacturing devices use a water-based adhesive. Although the sheet decorative board material can be manufactured at low cost by using the water-based adhesive, the base material easily warps because the base material absorbs the moisture of the adhesive. Further, in the water-based adhesive, after the hot melt adhesive is applied, it takes longer to develop the adhesive strength than the initial adhesive strength to which the decorative sheet does not peel off when cooled.

Therefore, when a water-based adhesive is used for attaching the decorative sheet, the base material may be warped before the adhesive dries, and the decorative sheet may be peeled off. The decorative sheet adhered with the water-based adhesive cannot be adhered even if it is pressed against the base material once it is peeled off and the surface dries while being peeled off. Therefore, if a water-based adhesive is used for a base material such as a wood base material that absorbs the moisture of the water-based adhesive and causes warpage, a sheet decorative board material having poor adhesion may be produced. In particular, immediately after the decorative sheet is attached, the adhesive force of the adhesive is weak, so there is a high possibility that the decorative sheet will come off due to the warp of the base material. Then, when the base material is warped so that the front and rear ends of the base material are lifted between the sticking roll for attaching the decorative sheet to the base material and the pressing roll for pressing the base material from above the base material, the base material is used. The decorative sheet peels off at the central part in the front-back direction and rises from the base material. When such a base material is pressed by a pressing roll, the warp of the base material is corrected and the decorative sheet is pressed against the base material, but when the warp of the base material is suppressed, the front and rear ends of the base material Is rubbed against the back surface of the decorative sheet and the adhesive is peeled off, and even if the decorative sheet is pressed with a pressing roll, the decorative sheet does not adhere to the base material and the risk of peeling increases.

The present invention has been made in view of the above points, and an object of the present invention is to produce a sheet decorative board material in which the decorative sheet does not come off.

In order to achieve the above object, in the present invention, the base material is pressed downward from above the decorative sheet by the pressing member between the sticking roll and the pressing roll.

Specifically, the first invention is a sheet decorative board material manufacturing apparatus for continuously manufacturing a sheet decorative board material in which a decorative sheet is adhered to the surface of a base material and laminated and integrated, and a plurality of the above-mentioned groups. The decorative sheet coated with the water-based adhesive is attached to the back surface of the transport unit that transports the material from the rear side to the front side at predetermined intervals and the front surfaces of the plurality of base materials that are sequentially transported by the transport unit. A sheet having a sticking roll and a pressing roll that presses the plurality of base materials sequentially conveyed by the transport portion from above the decorative sheet, and adheres the decorative sheet over the surfaces of the plurality of base materials. It is provided with an adhesive portion and a sheet cutting portion that cuts the decorative sheet back and forth between two adjacent base materials while moving from the rear side to the front side at a speed equal to the transport speed of the base material by the transport portion. The sticking roll and the pressing roll are provided with a pressing member that presses the plurality of base materials sequentially conveyed by the conveying portion from above the decorative sheet. is there.

In the first invention, a pressing member is provided between the sticking roll and the pressing roll to press a plurality of base materials sequentially conveyed by the conveying portion from above the decorative sheet. Therefore, the plurality of base materials sequentially conveyed by the conveying unit are pressed from above the decorative sheet by the pressing member between the sticking roll and the pressing roll. As a result, according to the first invention, it is possible to suppress the warp of the base material between the sticking roll and the pressing roll, so that the peeling of the decorative sheet due to the warp of the base material can be suppressed. Therefore, according to the first invention, it is possible to manufacture a sheet decorative board material in which the decorative sheet does not come off.

Further, in the first invention, in the above configuration, the pressing member is attached to a plate-shaped member extending in the width direction of the decorative sheet and the lower end surface of the plate-shaped member, and is in a non-airtight state with the decorative sheet. It is characterized by having a cushioning member in contact with the member.

By the way, when a pressing member made of a material having high hardness is used, there is a possibility that the pressing member may leave a linear or planar pressing mark on the decorative sheet or the decorative sheet may be twisted. Further, if the pressing member is composed of a member that comes into contact with the decorative sheet in an airtight state, the pressing member may come into close contact with the decorative sheet and peel off the decorative sheet.

In the first invention, the pressing member is composed of a plate-shaped member and a cushioning member attached to the lower end surface of the plate-shaped member. By forming the lower part of the pressing member with the cushioning member in this way, the pressing member does not leave a linear or planar pressing mark on the decorative sheet, and the decorative sheet does not twist. Further, in the first invention, the cushioning member is composed of a member that comes into contact with the decorative sheet in a non-airtight state. Therefore, the pressing member does not adhere to the decorative sheet, and the decorative sheet does not come off. Therefore, according to the first invention, the decorative sheet can be pressed against the base material without causing marks or wrinkles pressed against the decorative sheet and without peeling off the decorative sheet.

In the second invention, in the first invention, the pressing member is formed to have a length longer than the width of the decorative sheet in the width direction of the decorative sheet, and the plurality of groups are sequentially conveyed by the conveying unit. It is characterized in that the material is integrally pressed from one end to the other end in the width direction.

In the second invention, the base material is integrally pressed from one end to the other end in the width direction by the pressing member immediately after the decorative sheet is attached, as compared with the case where the base material is partially pressed. Since the warp of the decorative sheet can be further suppressed, the peeling of the decorative sheet can be further suppressed.

According to a third aspect of the present invention, in the second invention, two pressing members are provided between the sticking roll and the pressing roll so as to be arranged in the front-rear direction, and the rear side of the two pressing members is provided. The first pressing member is provided so that the rear end is positioned between the central axis and the front end of the sticking roll in the front-rear direction, and the second pressing member on the front side of the two pressing members is the front end. Is provided so as to be positioned between the central axis and the rear end of the pressing roll in the front-rear direction, and the distance between the first pressing member and the second pressing member is such that the distance between the first pressing member and the second pressing member in the front-rear direction is front-rear. It is characterized in that it is provided so as to be shorter than the distance between the two substrates adjacent to the base material.

In the third invention, two pressing members for pressing the base material from above the decorative sheet are provided between the sticking roll and the pressing roll. Further, the two pressing members are provided close to each other so that the distance between them is shorter than the distance between the base materials. Further, the first pressing member on the rear side is provided so close to the pasting roll that the rear end overlaps the front half portion of the sticking roll in the vertical direction, and the second pressing member on the front side has the front end at the latter half portion of the pressing roll. It is provided closer to the pressing roll so that it overlaps in the vertical direction. By providing the two pressing members in this way, the plurality of base materials sequentially conveyed by the conveying portion are between immediately after the decorative sheet is attached to the surface by the attaching roll and immediately before being pressed by the pressing roll. Almost all the time, the first pressing member and the second pressing member press the decorative sheet from above. According to such a configuration, the warpage of the base material can be further suppressed, so that the peeling of the decorative sheet can be further suppressed.

In the fourth aspect of the invention, in the third invention, the sticking roll and the pressing roll are configured so that the installation height can be changed, and the first pressing member is interlocked with the change of the mounting height of the sticking roll. The second pressing member is connected to the pasting roll so that the installation height is changed, and the second pressing member is connected to the pressing roll so that the installation height is changed in conjunction with the change in the installation height of the pressing roll. It is characterized in that it is connected to.

In the fourth invention, the sticking roll and the pressing roll are configured so that the installation height can be changed, and when the mounting height of the sticking roll is changed, the mounting height of the first pressing member is automatically changed to press. It is configured so that the installation height of the second pressing member is automatically changed when the installation height of the roll is changed. With such a configuration, the height of the first pressing member and the second pressing member is automatically adjusted to the thickness of the base material by simply adjusting the heights of the sticking roll and the pressing roll according to the thickness of the base material. It will be the height according to. Therefore, according to the fourth invention, the heights of the first and second pressing members can be easily changed to the heights according to the thickness of the base material.

In the fifth aspect of the invention, in the second invention, the pressing member is formed to have a length longer than the separation distance between the sticking roll and the pressing roll in the front-rear direction, and the rear end of the sticking roll is formed in the front-rear direction. It is characterized in that it is positioned between the central axis and the front end, and the front end is provided so as to be positioned between the central axis and the rear end of the pressing roll.

In the fifth invention, the pressing member provided between the sticking roll and the pressing roll is formed to have a length longer than the separation distance between the two rolls in the front-rear direction. Further, the pressing member is provided so close to the sticking roll that the rear end overlaps the front half portion of the sticking roll in the vertical direction, and is close to the pressing roll so that the front end overlaps the latter half portion of the pressing roll in the vertical direction. It is provided. By configuring the pressing member provided between the sticking roll and the pressing roll in this way, the plurality of base materials sequentially transported by the transporting portion can be formed immediately after the decorative sheet is pasted on the surface by the sticking roll. Until immediately before being pressed by the pressing roll, the pressing member is continuously pressed from above the decorative sheet. According to such a configuration, the warpage of the base material can be further suppressed, so that the peeling of the decorative sheet 52 can be more reliably suppressed.

In the sixth aspect of the invention, in the second invention, the pressing member is also provided on the front side of the pressing roll, and the pressing member provided on the front side of the pressing roll has the rear end in the front-rear direction. It is characterized in that it is provided so as to be positioned between the central axis of the pressing roll and the front end.

In the sixth invention, a pressing member for pressing a plurality of base materials sequentially conveyed by the conveying portion from above the decorative sheet is also provided on the front side of the pressing roll. Further, the pressing member is provided so close to the pressing roll that the rear end overlaps the front half portion of the pressing roll in the vertical direction. Therefore, according to the sixth invention, even after passing through the pressing roll, the base material is pressed by the pressing member and is less likely to warp, so that the peeling of the decorative sheet on each base material can be further suppressed.

A seventh invention is characterized in that, in any one of the first to sixth inventions, the pressing member is formed in a shape in which the rear end portion is located upward so as to move backward in the front-rear direction. Is to be.

By the way, while the plurality of base materials are sequentially transported from the rear side to the front side by the transport portion, the pressing member that presses the decorative sheet against the base material does not move in the front-rear direction. Therefore, depending on the shape of the rear end portion of the pressing member, the decorative sheet may be twisted and peeled off by the corner portion of the rear end portion of the pressing member that comes into contact with the decorative sheet.

On the other hand, in the seventh invention, since the rear end portion of the pressing member is formed so as to be located upward toward the rear in the front-rear direction, the corner portion of the rear end of the pressing member is a decorative sheet. Does not come into contact with. Therefore, the decorative sheet attached to the surface of the base material is smoothly sent below the pressing member and pressed against the base material without being twisted by the corners of the rear end of the pressing member. Therefore, according to the seventh invention, it is possible to prevent the decorative sheet from twisting due to the provision of the pressing member.

An eighth invention is characterized in that, in any one of the first to seventh inventions, the cushioning member is formed of a foam of open cells, a non-woven fabric, or felt.

In the eighth invention, a cushioning member that comes into contact with the decorative sheet in a non-airtight state can be easily constructed.

The ninth invention is the rear end portion of the base material on the front side of the cut portion of the decorative sheet when the sheet cutting portion cuts the decorative sheet in any one of the first to eighth inventions. When the front pressing member that presses the decorative sheet from above and the sheet cutting portion cuts the decorative sheet, the front end portion of the base material behind the cut portion of the decorative sheet is of the decorative sheet. It is characterized by including a sheet pressing portion having a rear pressing member for pressing from above.

By the way, when the decorative sheet is cut, the pressure applied by the blade acts on the decorative sheet, so that the decorative sheet is easily peeled off at the end of each base material.

In the ninth aspect of the present invention, after the decorative sheet is adhered over the surfaces of a plurality of base materials at the sheet adhesive portion, the decorative sheet is cut between two adjacent base materials by the sheet cutting portion. The front and rear portions of the cut portion of the sheet are pressed against the base material by the front pressing member and the rear pressing member of the sheet pressing portion. Therefore, the decorative sheet is less likely to be peeled off when the decorative sheet is cut, which is likely to be peeled off at the edge of each base material. Therefore, according to the ninth invention, it is possible to suppress the peeling of the decorative sheet even when the decorative sheet is cut, which is likely to be peeled from the base material.

In the tenth aspect of the invention, in the ninth invention, when the sheet cutting portion cuts the decorative sheet, the front pressing member and the rear pressing member form the front base material, respectively. A moving mechanism for moving the front pressing member and the rear pressing member in the front-rear direction and the front pressing member so that the rear end portion and the front end portion of the base material on the rear side can be pressed. And the front side between the upper position where the rear pressing member does not abut on the decorative sheet and the lower position where the front pressing member and the rear pressing member press the base material from above the decorative sheet. It has a pressing member and an elevating mechanism for moving the rear pressing member up and down, and the elevating mechanism uses the front pressing member and the rear pressing member when the sheet cutting portion cuts the decorative sheet. It is configured to move to the lower position, and when the front pressing member and the rear pressing member retract by the moving mechanism, the front pressing member and the rear pressing member are moved to the upper position. It is characterized by being present.

In the tenth invention, the front pressing member and the rear pressing member are moved in the front-rear direction by the moving mechanism in accordance with the transport of the base material by the transport portion, and the decorative sheet is cut between the two adjacent base materials. At that time, the rear end portion of the front base material and the front end portion of the rear base material are arranged at positions where they can be pressed. Therefore, after cutting the decorative sheet, the front pressing member and the rear pressing member move in the direction opposite to the transport direction of the base material and move between the next base materials. At that time, the front pressing member and the rear pressing member are moved to the upper position by the elevating mechanism and do not come into contact with the decorative sheet. Therefore, according to the tenth invention, it is possible to prevent the decorative sheet from peeling off when the front pressing member and the rear pressing member move (retract) in the direction opposite to the transport direction of the base material.

The eleventh invention is provided below the plurality of base materials in the tenth invention, and when the sheet cutting portion cuts the decorative sheet, the rear end portion of the front base material and the rear side thereof. It is characterized in that it is provided with a support member that supports the front end portion of the base material from below.

In the eleventh invention, when the front pressing member and the rear pressing member press the decorative sheet against the rear end portion of the front base material and the front end portion of the rear base material, the rear end portion of the front base material is used. A support member for supporting the front end portion of the base material on the rear side from below is provided. Therefore, for example, even when the base material is conveyed by a belt conveyor or the like, when the front side pressing member and the rear side pressing member press the decorative sheet against the base material, the base material does not sink and the support member. Will be supported from below. Therefore, according to the eleventh invention, the decorative sheet can be reliably pressed against the base material.

As described above, according to the sheet decorative board material manufacturing apparatus of the present invention, the base material is pressed downward from above the decorative sheet by the pressing member between the sticking roll and the pressing roll. It is possible to suppress the peeling of the decorative sheet of the sheet decorative board material.

FIG. 1 is a schematic configuration diagram of a sheet decorative board material manufacturing apparatus according to the first embodiment. FIG. 2 is an enlarged perspective view showing a part of the sheet bonding unit of FIG. FIG. 3 is a partially enlarged view of FIG. FIG. 4 is an enlarged perspective view showing the vicinity of the sheet cutting unit of FIG. FIG. 5 is a plan view showing a base material support portion of the transport unit and the sheet cutting unit of FIG. FIG. 6 is a sectional view taken along line VI-VI of FIG. FIG. 7 is an operation diagram for explaining the operation during the sheet cutting step in the method for manufacturing the sheet decorative board material according to the first embodiment of the present invention. FIG. 8 is a view corresponding to FIG. 3 of the sheet decorative board material manufacturing apparatus according to the second embodiment. FIG. 9 is a schematic configuration diagram of a sheet decorative board material manufacturing apparatus according to the third embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following embodiments are essentially preferred examples and are not intended to limit the scope of the invention, its applications, or its uses.

<< Embodiment 1 of the invention >>
FIG. 1 shows a sheet decorative board material manufacturing apparatus 1 according to the first embodiment of the present invention. The manufacturing apparatus 1 continuously manufactures a rectangular plate-shaped base material 51 and a sheet decorative board material 50 in which a decorative sheet 52 is adhered to the surface 51a (decorative surface) of the base material 51 and laminated and integrated. Is.

The sheet decorative board material 50 is a decorative sheet 52 adhered to the surface 51a of the base material 51 via an adhesive 53, and is used as a floor material or the like.

The base material 51 is made of, for example, a wood-based material such as LVL (Laminated Veneer Lumber), plywood, laminated wood, solid wood, particle board, and fiberboard. The base material 51 may be a plate material made of an inorganic material such as a volcanic vitreous multi-layer plate, a calcium silicate plate, or a gypsum board, as long as it has water absorption.

The decorative sheet 52 is made of resin, and is formed of, for example, a resin film having a thickness of about 0.1 mm to 0.4 mm, such as an olefin resin, a PET (polyethylene terephthalate) resin, and a vinyl chloride resin, which contains almost no water. .. In addition to the resin sheet, the decorative sheet 52 may be a decorative paper such as coated paper or resin impregnated paper, a non-woven fabric, a woven fabric, a thin wooden veneer, or a thin sheet material such as a tatami mat. The thickness of the decorative sheet 52 may be determined in consideration of the unwinding roll 22 for unwinding the long decorative sheet 52, which will be described later. In the case of paper, for example, it is about 0.05 mm to 0.3 mm. As for the resin sheet, for example, one having a thickness of about 0.15 mm to 0.3 mm is preferably used. In addition, for example, wood grain, stone grain, abstract pattern and the like are printed on the decorative sheet 52.

The adhesive 53 is composed of, for example, a water-based adhesive 53 such as vinyl acetate-based, aqueous vinyl urethane-based, acrylic-based, isocyanate-based, urea-based, ethylene-vinyl acetate copolymer-based, and polyvinyl alcohol-based. .. Here, for example, an isocyanate-based or melamine-based curing agent may be added to the adhesive 53, if necessary.

-Manufacturing equipment configuration-
As shown in FIG. 1, the manufacturing apparatus 1 includes a transport unit 10, a sheet bonding unit 20, and a sheet cutting unit 30.

[Transport unit]
As shown in FIGS. 1 to 4, the transport unit 10 has a plurality of belts 11 and a plurality of drive rollers 12, ..., 12 for driving the plurality of belts 11. The drive rollers 12, ..., 12 are rotationally driven by a drive device (not shown). The belt 11 is composed of belts narrower than the width of the base material 51 in the movable region of the sheet cutting unit 30, and is provided in parallel with three belts in the width direction of the base material 51. In the other regions, the width of the base material 51 is wide. It consists of a wider belt. Each belt 11 is wound around two drive rollers 12, 12. Each belt 11 is fed in opposite directions above and below the two drive rollers 12, ... By the rotation of the two drive rollers 12, ..., 12 to push the plurality of base materials 51 in a predetermined direction (in FIG. 1). Transport to the right).

[Sheet adhesive unit]
The sheet bonding unit 20 includes a die coater 21 that applies an adhesive 53 to the back surface of the decorative sheet 52, a unwinding roll 22 that supplies a long decorative sheet 52 to the die coater 21, and a base that is being transported by the transport unit 10. Pressing the sticking roll (sticking roll) 23 for sticking the portion coated with the adhesive 53 on the back surface of the decorative sheet 52 on the front surface 51a of the material 51 and the decorative sheet 52 stuck to the front surface 51a of the base material 51. A roll (pressing roll) 24, a film thickness meter 25, and first to third pressing members 26 to 28 are provided.

As shown in FIG. 1, the die coater 21 has a T-die 21a, a tank 21b for storing an adhesive 53 connected to the T-die 21a via a connecting pipe, and a T-die 21a in the path of the connecting pipe. It includes a filter 21c and a pump 21d provided in this order, and a backup roll 21e provided on the lower side of the T-die 21a in the drawing.

As shown in FIG. 1, the T-die 21a quantitatively discharges the water-based adhesive 53 supplied from the tank 21b through, for example, an elongated gap having a width of about 0.3 mm. The T-die 21a is provided so that the water-based adhesive 53 is discharged to the backup roll 21e side.

The filter 21c is made of, for example, a mesh-like member such as a steel wire mesh, and has a mesh smaller than the gap of the T-die 21a (for example, about 100 mesh). Here, for example, when the wire diameter of the 100-mesh filter 21c is 0.11 mm, the size of the opening is 0.144 mm, and when the wire diameter is 0.10 mm, the size of the opening is large. The diameter is 0.154 mm.

The pump 21d is composed of a positive displacement pump, and is provided so as to pressurize the adhesive 53 stored in the tank 21b and send it out to the T-die 21a.

The backup roll 21e conveys the decorative sheet 52 supplied from the unwinding roll 22 to the sticking roll 23 by being rotationally driven by a driving device (not shown). The backup roll 21e is provided so that the adhesive 53 from the T die 21a is applied to the back surface of the decorative sheet 52 to be conveyed.

The unwinding roll 22 unwinds a long decorative sheet 52 wound in a roll shape by being rotationally driven by a driving device (not shown). The unwinding roll 22 is provided so that the unwound decorative sheet 52 is supplied to the peripheral surface of the backup roll 21e of the die coater 21.

The sticking roll 23 is rotationally driven by a driving device (not shown), so that the back surface coated with the adhesive 53 of the decorative sheet 52 sent from the backup roll 21e is sequentially conveyed by the conveying unit 51. It is attached to the surface 51a of. The sticking roll 23 is stuck on the surface 51a of the base material 51 by wrapping the decorative sheet 52 around a part of the outer peripheral surface and bringing the decorative sheet 52 wrapped at the lower end into contact with the surface 51a of the base material 51. It is provided so that it can be attached. The attachment roll 23 is configured so that the installation height can be changed, and the installation height is changed so that the decorative sheet 52 can be attached to the surface 51a of the base material 51 according to the thickness of the base material 51.

The pressing roll 24 presses the base material 51 on which the decorative sheet 52 is attached to the surface 51a of the sticking roll 23 from above the decorative sheet 52 by being rotationally driven by a driving device (not shown). The pressing roll 24 is provided on the front side of the sticking roll 23, and the lower end thereof is provided so as to come into contact with the decorative sheet 52 attached to the base material 51 to be sequentially conveyed and press downward. The installation height of the pressing roll 24 can be changed, and the installation height is changed so that the decorative sheet 52 is pressed against the base material 51 according to the thickness of the base material 51.

As shown in FIGS. 1 to 3, the first to third pressing members 26 to 28 transfer the base material 51 sequentially transported by the transport unit 10 from above the decorative sheet 52 in order to suppress the warp of the base material 51. It is something to hold down. The first and second pressing members 26 and 27 are provided between the sticking roll 23 and the pressing roll 24, and the third pressing member 28 is provided on the front side of the pressing roll 24.

The first pressing member 26 is provided between the sticking roll 23 and the pressing roll 24 on the sticking roll 23 side, and the base material 51 immediately after the decorative sheet 52 is stuck on the surface 51a by the sticking roll 23 is used as a makeup. It is configured to be pressed from above the seat 52. In the first embodiment, the first pressing member 26 is connected to the sticking roll 23 via a connecting member (not shown) so that the installation height is changed according to the change of the mounting height of the sticking roll 23. .. The first pressing member 26 is connected to the sticking roll 23 so that the lower end thereof is positioned at substantially the same height as the lower end of the sticking roll 23.

The first pressing member 26 has a plate-shaped member 26a and a cushioning member 26b attached to the lower end surface of the plate-shaped member 26a. The plate-shaped member 26a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 26a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 26b is formed in a shape equal to the plate-shaped member 26a in a plan view. In the first embodiment, the cushioning member 26b is made of a non-woven fabric. With such a configuration, the first pressing member 26 transfers a plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 between the sticking roll 23 and the pressing roll 24 from above the decorative sheet 52. It is configured to be integrally pressed from one end to the other end in the width direction in a non-airtight state.

The first pressing member 26 is formed in a shape in which the rear end portion 26r is located upward so as to move rearward in the front-rear direction. In the first embodiment, the first pressing member 26 is formed by bending the rear end portion of the plate-shaped member 26a upward and attaching the cushioning member 26b to the lower end surface of the plate-shaped member 26a along the lower end surface. The rear end portion 26r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 26r of the first pressing member 26 may have a curved shape as long as it is located upward toward the rear in the front-rear direction.

The second pressing member 27 is provided on the pressing roll 24 side between the sticking roll 23 and the pressing roll 24, and presses the base material 51 immediately after passing through the first pressing member 26 from above the decorative sheet 52. It is configured as follows. In the first embodiment, the second pressing member 27 is connected to the pressing roll 24 via a connecting member (not shown) so that the installation height is changed as the installation height of the pressing roll 24 is changed. .. The second pressing member 27 is connected to the pressing roll 24 so that the lower end thereof is positioned at substantially the same height as the lower end of the pressing roll 24.

The second pressing member 27 has a plate-shaped member 27a and a cushioning member 27b attached to the lower end surface of the plate-shaped member 27a. The plate-shaped member 27a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 27a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 27b is formed in a shape equal to the plate-shaped member 27a in a plan view. In the first embodiment, the cushioning member 27b is made of a non-woven fabric. With such a configuration, the second pressing member 27 transfers a plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 between the sticking roll 23 and the pressing roll 24 from above the decorative sheet 52. It is configured to be integrally pressed from one end to the other end in the width direction in a non-airtight state.

The second pressing member 27 is formed in a shape in which the rear end portion 27r is located upward as the rear end portion 27r moves toward the rear in the front-rear direction. In the first embodiment, the second pressing member 27 is formed by bending the rear end portion of the plate-shaped member 27a upward and attaching the cushioning member 27b to the lower end surface of the plate-shaped member 27a along the lower end surface. The rear end portion 27r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 27r of the second pressing member 27 may have a curved shape as long as it is located upward toward the rear in the front-rear direction.

With such a configuration, two pressing members 26 and 27 for pressing the decorative sheet 52 against the base material 51 are provided between the sticking roll 23 and the pressing roll 24. Further, the distance d between the two pressing members 26 and 27 (the distance between the front end of the first pressing member 26 and the rear end of the second pressing member 27) d is shorter than the distance D of the base material 51. It is provided in close proximity to.

Further, the first pressing member 26 on the rear side of the two pressing members 26, 27 is provided so close to the attaching roll 23 that the rear end overlaps the front half portion of the attaching roll 23 in the vertical direction. Specifically, the first pressing member 26 is provided so that the rear end is positioned in the first region A1 between the central axis 23a and the front end 23b of the sticking roll 23 in the front-rear direction.

On the other hand, the second pressing member 27 on the front side of the two pressing members 26, 27 is provided so close to the pressing roll 24 that the front end overlaps the latter half portion of the pressing roll 24 in the vertical direction. Specifically, the second pressing member 27 is provided so that the front end is positioned in the second region A2 between the central axis 24a and the rear end 24b of the pressing roll 24 in the front-rear direction.

The details of the operation will be described later, but by providing the two pressing members 26, 27 in this way, the plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 are brought to the surface 51a by the sticking roll 23. From immediately after the decorative sheet 52 is attached to immediately before being pressed by the pressing roll 24, the first pressing member 26 and the second pressing member 27 continue to press the decorative sheet 52 from above.

The third pressing member 28 is configured to press the base material 51 immediately after passing through the pressing roll 24 from above the decorative sheet 52. In the first embodiment, the third pressing member 28 is connected to the pressing roll 24 via a connecting member (not shown) so that the installation height is changed as the installation height of the pressing roll 24 is changed. .. The third pressing member 28 is connected to the pressing roll 24 so that the lower end thereof is positioned at substantially the same height as the lower end of the pressing roll 24.

Like the first and second pressing members 26 and 27, the third pressing member 28 has a plate-shaped member 28a and a cushioning member 28b attached to the lower end surface of the plate-shaped member 28a. The plate-shaped member 28a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 28a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 28b is formed in a shape equal to the plate-shaped member 28a in a plan view. In the first embodiment, the cushioning member 28b is made of a non-woven fabric. With such a configuration, the third pressing member 28 transfers a plurality of base materials 51, ..., 51 sequentially conveyed by the conveying unit 10 on the front side of the pressing roll 24 from above the decorative sheet 52 from one end in the width direction. It is configured to hold down to the other end integrally in a non-airtight state.

Further, the third pressing member 28 is formed in a shape in which the rear end portion 28r is located upward so as to move rearward in the front-rear direction, similarly to the first and second pressing members 26 and 27. In the first embodiment, the third pressing member 28 is formed by bending the rear end portion of the plate-shaped member 28a upward and attaching the cushioning member 28b to the lower end surface of the plate-shaped member 28a along the lower end surface. The rear end portion 28r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 28r of the third pressing member 28 may have a curved shape as long as it is positioned upward toward the rear in the front-rear direction.

Further, the third pressing member 28 is provided so close to the pressing roll 24 that the rear end overlaps the front half portion of the pressing roll 24 in the vertical direction. Specifically, the third pressing member 28 is provided so that the rear end is positioned in the third region A3 between the central axis 24a and the front end 24c of the pressing roll 24 in the front-rear direction. The third pressing member 28 has a size in which the front end is close to the rear end of the pressing member 37 of the sheet cutting portion 31 described later when the sheet cutting portion 31 is at the sheet cutting start position (the rearmost position) described later. It is formed in the base. For example, in the third pressing member 28, the distance between the front end of the third pressing member 28 and the rear end of the pressing member 37 of the sheet cutting portion 31 at the sheet cutting start position in the front-rear direction is the distance between the first and second pressing members 26. , 27 are formed to have a size equal to the separation distance d.

[Sheet cutting unit]
The sheet cutting unit 30 includes a sheet cutting portion 31, a sheet pressing portion 32, a support member 33, and a pressing member 37.

The sheet cutting portion 31 cuts the decorative sheet 52 back and forth between the two adjacent base materials 51 and 51 while moving from the rear side to the front side at a speed equal to the transfer speed of the base material 51 by the transfer unit 10. Specifically, the sheet cutting portion 31 has a cutting mechanism 31a, an elevating mechanism 31b, a slider 31c, a guide member 31d, two columns 31e, and a base 31f (moving mechanism).

The cutting mechanism 31a has a blade 31a1, a cover 31a2, and a motor 31a3. In the first embodiment, the blade 31a1 is composed of a circular blade member capable of cutting the decorative sheet 52 by a sharp outer peripheral edge portion. The front and rear surfaces of the cover 31a2 are formed in a semicircular arc shape, and cover the upper half of the blade 31a1 that does not contribute to cutting the decorative sheet 52. The drive shaft of the motor 31a3 is connected to the central portion of the blade 31a1 so as to rotationally drive the blade 31a1. The cutting mechanism 31a cuts the decorative sheet 52 back and forth by the blade 31a1 rotationally driven by the motor 31a3 moving in the width direction of the decorative sheet 52 along with the slider 31c.

The elevating mechanism 31b is connected to a cutting mechanism 31a (motor 31a3 in the first embodiment) and is configured to move the blade 31a1 up and down. Specifically, in the first embodiment, the elevating mechanism 31b is composed of a rod whose lower end is connected to the motor 31a3 and a motor (not shown) that moves the rod up and down. The elevating mechanism 31b is configured to move the blade 31a1 to a predetermined upper position away from the decorative sheet 52 and a predetermined lower position where the decorative sheet 52 can be cut. Further, the elevating mechanism 31b positions the blade 31a1 in the lower position during cutting of the decorative sheet 52, and positions the blade 31a1 in the upper position when retracting the blade 31a1 to the next cutting position after cutting the decorative sheet 52. It is configured as follows.

The slider 31c is connected to the elevating mechanism 31b and is configured to move the blade 31a together with the elevating mechanism 31b in the width direction of the decorative sheet 52. In the first embodiment, the slider 31c includes the motor of the elevating mechanism 31b and is configured to accommodate the upper end of the rod of the elevating mechanism 31b. Further, the slider 31c has an engaging portion (in the first embodiment, a groove portion extending in the width direction of the decorative sheet 52) that slidably engages with the guide member 31d. The slider 31c is driven by a motor (not shown) and is configured to slide and move in the width direction of the decorative sheet 52.

The guide member 31d is composed of a rod-shaped member that is long in the width direction of the decorative sheet 52, and is an engaging portion in which the slider 31c is slidably engaged (in the first embodiment, a ridge portion extending in the width direction of the decorative sheet 52). have. The slider 31c moves in the width direction of the decorative sheet 52 by sliding and moving along the front surface of the guide member 31d.

The two columns 31e are composed of rod-shaped members extending in the vertical direction and are erected on the base 31f. A guide member 31d is connected to the upper end of the two columns 31e to support the guide member 31d.

The base 31f is provided at a position below the upper ends of the plurality of drive rollers 12, and two columns 31e and four elevating mechanisms 36 of the seat pressing portion 32 are erected on the base 31f. The base 31f is adjusted to the transport speed of the transport unit 10 so that the blades 31a1 are sequentially arranged between each of the plurality of base materials 51 that are sequentially transported from the rear side to the front side to cut the decorative sheet 52 back and forth. It is configured to move in the front-back direction.

In the first embodiment, the base 31f reciprocates between a predetermined sheet cutting start position and a predetermined sheet cutting end position on the front side of the sheet cutting start position. The sheet cutting start position and the sheet cutting end position are set between the two drive rollers 12 and 12 for feeding out the three belts 11, 11 and 11 arranged in the width direction. That is, the base 31f reciprocates between each of the two drive rollers 12, 12 that drive the three belts 11, 11, 11. The sheet cutting start position is the rearmost position of the sheet cutting portion 31 that reciprocates in the front-rear direction, and the sheet cutting portion 31 has two adjacent base materials after the blade 31a1 has passed through the sheet bonding unit 20. It is a position to wait until it is arranged between 51 and 51.

Specifically, the base 31f moves to the sheet cutting start position before cutting the decorative sheet 52, and the blade 31a1 corresponds to the decorative sheet 52 between the two base materials 51 and 51 to be cut. Wait at the cutting start position. When the blades 31a1 are arranged between the base materials 51 and 51, the base 31f has a base material 51 at a speed equal to the transport speed of the base material 51 so that the relative positions of the blades 31a1 and the decorative sheet 52 do not change. Moves to the sheet cutting end position in the transport direction (forward) of. When the sheet cutting end position is reached, the base 31f moves to the sheet cutting start position in the direction opposite to the transport direction (rearward) of the base material 51.

The base 31f is formed in a shape that does not interfere with the three belts 11 when moving in the front-rear direction. Further, the base 31f can be erected by two columns 31e and four elevating mechanisms 36 of the seat pressing portion 32, and moves in the front-rear direction as described above without interfering with the three belts 11. Any shape may be used as long as it is used.

When the sheet cutting portion 31 cuts the decorative sheet 52, the sheet pressing portion 32 views the front and rear end portions of the base materials 51 and 51 before and after the cut portion of the decorative sheet 52 from above the decorative sheet 52. It is configured to press. Specifically, the seat pressing portion 32 has a front pressing member 34 (pressing member), a rear pressing member 35 (pressing member), and four elevating mechanisms 36, ..., 36.

The front pressing member 34 is provided above the transport unit 10, and when the sheet cutting portion 31 cuts the decorative sheet 52, the rear end portion of the base material 51 on the front side of the cut portion of the decorative sheet 52 is used as the decorative sheet. It is configured to press from above the 52. Specifically, the front pressing member 34 has a plate-shaped member 34a and a cushioning member 34b attached to the lower end surface of the plate-shaped member 34a. The plate-shaped member 34a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 34a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 34b is formed in a shape equal to the plate-shaped member 34a in a plan view. In the first embodiment, the cushioning member 34b is made of a non-woven fabric. Although the details will be described later, when the base material 51 is pressed from above the decorative sheet 52, the cushioning member 34b comes into contact with the decorative sheet 52 in a non-airtight state.

The rear pressing member 35 is provided above the transport unit 10, and when the sheet cutting portion 31 cuts the decorative sheet 52, the front end portion of the base material 51 on the rear side of the cut portion of the decorative sheet 52 is decorated. It is configured to be pressed from above the sheet 52. Specifically, the rear pressing member 35 has a plate-shaped member 35a and a cushioning member 35b attached to the lower end surface of the plate-shaped member 35a. The plate-shaped member 35a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 35a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 35b is formed in a shape equal to the plate-shaped member 35a in a plan view. In the first embodiment, the cushioning member 35b is made of a non-woven fabric. Although the details will be described later, when the base material 51 is pressed from above the decorative sheet 52, the cushioning member 35b comes into contact with the decorative sheet 52 in a non-airtight state.

The front pressing member 34 and the rear pressing member 35 have a plurality of base materials 51, ..., 51 in which the distance between the rear end of the front pressing member 34 and the front end of the rear pressing member 35 is sequentially conveyed by the conveying unit 10. It is provided so as to be shorter than the distance between the two base materials 51, 51 adjacent to each other in the front-rear direction. The distance between the rear end of the front pressing member 34 and the front end of the rear pressing member 35 does not hinder the cutting of the decorative sheet 52 by the sheet cutting portion 31 (in the first embodiment, the rear end and the rear pressing of the front pressing member 34). It is preferable that the front end of the member 35 is as narrow as (the front end does not interfere with the blade 31a1).

With such a configuration, when the sheet cutting portion 31 cuts the decorative sheet 52, the front pressing member 34 presses the front and rear portions of the base material 51 on the front side of the decorative sheet 52 from above, and rear. The side pressing member 35 presses the front and rear portions of the base material 51 on the rear side of the decorative sheet 52 from above. That is, when the sheet cutting portion 31 cuts the decorative sheet 52, the front pressing member 34 and the rear pressing member 35 push the decorative sheet 52 to the ends of the two adjacent base materials 51, 51 facing each other. While pressing against the base material 51, the decorative sheet 52 protruding from the edges of both base materials 51 and 51 is also pressed downward. In this way, the front pressing member 34 and the rear pressing member 35 press the decorative sheet 52 protruding from the edges of the two adjacent base materials 51 and 51, so that the decorative sheet 52 is being cut while the decorative sheet 52 is being cut. It is possible to prevent the portion cut before and after the above from being rolled up upward and peeling off from the base material 51.

Further, even if the decorative sheet 52 is peeled off at the end of each base material 51 before the decorative sheet 52 is cut, the front pressing member 34 and the rear pressing member 35 are used before the water-based adhesive 53 dries. Will be pressed against the base material 51 and will come into close contact again.

The four elevating mechanisms 36, ..., 36 are provided at both ends of the front pressing member 34 and the rear pressing member 35 in the longitudinal direction. The four elevating mechanisms 36, ..., 36 move up and down at the same height position at the same time, so that the front pressing member 34 and the rear pressing member 35 do not abut on the decorative sheet 52, and the front pressing member 34 and the front pressing member 34 The rear pressing member 35 is configured to move the front pressing member 34 and the rear pressing member 35 up and down between the lower position where the rear pressing member 35 presses the base material 51 from above the decorative sheet 52.

Specifically, the two elevating mechanisms 36, 36 (front elevating mechanisms 36, 36) provided at both ends of the front pressing member 34 in the longitudinal direction are connected to the end portions of the front pressing member 34 in the longitudinal direction, respectively. The front pressing member 34 is placed at the upper position where the front pressing member 34 does not abut on the decorative sheet 52 separated from the decorative sheet 52, and at the lower position where the base material 51 is pressed against the decorative sheet 52 from above the decorative sheet 52. It is configured to move. Further, the elevating mechanisms 36, 36 on the front side position the front pressing member 34 in the lower position during cutting of the decorative sheet 52, and in the upper position when the front pressing member 34 retracts after cutting the decorative sheet 52. It is configured to be located in.

The two elevating mechanisms 36, 36 (rear elevating mechanisms 36, 36) provided at both ends of the rear pressing member 35 in the longitudinal direction are connected to the end portions of the rear pressing member 35 in the longitudinal direction, respectively. The rear pressing member 35 is moved to the upper position where the rear pressing member 35 does not abut on the decorative sheet 52 separated from the decorative sheet 52 and the lower position where the base material 51 abuts on the decorative sheet 52 and presses the substrate 51 from above the decorative sheet 52. It is configured to let you. Further, the rear elevating mechanisms 36, 36 position the rear pressing member 35 at a lower position during cutting of the decorative sheet 52, and when the rear pressing member 35 retracts after cutting the decorative sheet 52. , Is configured to be positioned above.

With the above configuration, the four elevating mechanisms 36, ..., 36 move the front pressing member 34 and the rear pressing member 35 to the lower position when the sheet cutting portion 31 cuts the decorative sheet 52. When the decorative sheet 52 is pressed against the ends of the base materials 51 and 51 and the base 31f (moving mechanism) retracts to retract the front pressing member 34 and the rear pressing member 35, the front pressing member 34 and the rear pressing member 34 By moving the rear pressing member 35 to the upper position, the front pressing member 34 and the rear pressing member 35 are configured so as not to come into contact with the decorative sheet 52.

As shown in FIGS. 1, 5 and 6, the support member 33 is a rear end portion of the base material 51 on the front side of the cut portion of the decorative sheet 52 when the sheet cutting portion 31 cuts the decorative sheet 52. And the front end on the rear side are configured to support from below. In the first embodiment, as shown in FIGS. 5 and 6, the support member 33 is provided between each of the three belts 11, 11 and 11 arranged in the width direction, and is composed of a plate-shaped member. The height of the upper surface of each support member 33 is substantially the height of the upper surface of the feed portions (upper portions in FIG. 1 in the transport direction) of the three belts 11, 11, 11 arranged in the width direction of the transport unit 10. They are installed so that they are equal. Further, each of the support members 33 is located at least at the position of the rear end of the rear pressing member 35 at the sheet cutting start position in the conveying direction by the conveying unit 10 (the left end of the rear pressing member 35 shown by the alternate long and short dash line on the left side of FIG. 5). ) To the position of the front end of the front pressing member 34 at the sheet cutting end position (the right end of the front pressing member 34 shown by the alternate long and short dash line on the right side of FIG. 5). That is, while the front pressing member 34 and the rear pressing member 35 move from the sheet cutting start position to the sheet cutting end position while pressing the decorative sheet 52 against the base materials 51 and 51, the front pressing member 34 and the rear pressing member 34 are constantly pressed. It is formed to have a length in the front-rear direction facing the member 35 in the vertical direction.

The pressing member 37 is a base material so that the decorative sheet 52 attached to the surface 51a of the base material 51 in the sheet adhesive unit 20 does not peel off from the base material 51 when the sheet cutting portion 31 cuts the decorative sheet 52. The 51 is pressed from above the decorative sheet 52. The pressing member 37 is configured in the same manner as the first to third pressing members 26 to 28 of the sheet adhesive unit 20.

In the first embodiment, the sheet cutting unit 30 has three pressing members 37. The three pressing members 37 are provided behind the sheet pressing portion 32 so as to be arranged at intervals in the width direction of the decorative sheet 52. The three pressing members 37 are connected to the sheet cutting portion 31 and are configured to reciprocate in the front-rear direction together with the sheet cutting portion 31.

Specifically, each of the three pressing members 37 is suspended from the guide member 31d by the suspending member 38. Each hanging member 38 suspends each holding member 37 so that the lower end of each holding member 37 comes into contact with the decorative sheet 52. The suspension member 38 is configured so that the installation height of each holding member 37 can be changed. Therefore, the installation height of each pressing member 37 can be changed so that the lower end of each pressing member 37 comes into contact with the decorative sheet 52 according to the thickness of the base material 51.

Each holding member 37 has a plate-shaped member 37a and a cushioning member 37b attached to the lower end surface of the plate-shaped member 37a. The plate-shaped member 37a is made of a metal plate. In the first embodiment, the plate-shaped member 37a is formed in a substantially rectangular shape in a plan view. The cushioning member 37b is formed in a shape equal to the plate-shaped member 37a in a plan view. In the first embodiment, the cushioning member 37b is made of a non-woven fabric. With such a configuration, when the sheet cutting portion 31 cuts the decorative sheet 52, each pressing member 37 keeps the rear portion of the sheet pressing portion 32 of the base material 51 in a non-airtight state from above the decorative sheet 52. It is configured to hold down.

Further, each pressing member 37 is formed in a shape in which the rear end portion 37r is located upward as the rear end portion 37r is directed toward the rear in the front-rear direction, similarly to the first to third pressing members 26 to 28. In the first embodiment, each pressing member 37 is formed by bending the rear end portion of the plate-shaped member 37a upward and attaching a cushioning member 37b to the lower end surface of the plate-shaped member 37a along the lower end surface. The rear end portion 37r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 37r of the pressing member 37 may have a curved shape as long as it is located upward toward the rear in the front-rear direction.

Each pressing member 37 is formed so that the rear end thereof is close to the front end of the third pressing member 28 when the sheet cutting portion 31 is at the cutting start position (the rearmost position). For example, in each pressing member 37, when the sheet cutting unit 30 is in the sheet cutting start position, the distance between the rear end of each pressing member 37 and the front end of the third pressing member 28 is the first and second pressing members 26. , 27 are formed to have a size equal to the separation distance d.

-Manufacturing method-
Next, a method for manufacturing the sheet decorative board material 50 will be described. This manufacturing method includes (1) an adhesive coating step, (2) a sheet bonding step, (3) a sheet cutting step, and (4) a flat plate pressing step. The order of the steps described below is only an example, and the manufacturing method according to the present invention is not limited to this.

(1) Adhesive coating step In the adhesive coating step, the adhesive 53 (water-based adhesive 53) is applied to the back surface of the decorative sheet 52. In the first embodiment, the adhesive application step is performed by the die coater 21.

Specifically, the unwinding roll 22, the backup roll 21e, and the sticking roll 23 are driven, and the pump 21d of the die coater 21 is operated. As a result, the roll-shaped decorative sheet 52 is unwound from the unwinding roll 22 and sent to the backup roll 21e and the sticking roll 23 in order. In the die coater 21, the adhesive 53 stored in the tank 21b is conveyed to the T die 21a by the pump 21d via the filter 21c, and is quantitatively discharged from the gap of the T die 21a toward the backup roll 21e. .. The adhesive 53 discharged from the gap of the T-die 21a toward the backup roll 21e is applied to the back surface of the decorative sheet 52 sent to the sticking roll 23 by the backup roll 21e on the outer peripheral surface of the backup roll 21e. In this way, the adhesive 53 is sequentially applied to the back surface of the decorative sheet 52.

The coating amount of the adhesive 53 is, for ^{example, 50g / m 2 ~150g / m} 2 about ^{(preferably, 50g / m 2 ~100g / m} 2) is. The coating amount (film thickness) of the adhesive 53 is measured based on the amount of water contained in the adhesive 53 by irradiating infrared rays from the non-contact type film thickness meter 25. If the coating amount (film thickness) of the adhesive 53 does not fall within the predetermined range, the production line is temporarily stopped, and the gap between the T-die 21a and the feed amount of the pump 21d are checked and adjusted.

(2) Sheet Adhesive Step In the sheet adhesive step, a plurality of base materials 51, ..., In which the decorative sheet 52 coated with the adhesive 53 on the back surface is sequentially conveyed from the rear side to the front side at predetermined intervals by the conveying unit 10. It is supplied over the surfaces 51a, ..., 51a of 51 and adhered. Specifically, the decorative sheet 52 coated with the adhesive 53 on the back surface is sequentially sent out by the sticking roll 23 to the front surfaces 51a, ..., 51a of the plurality of base materials 51, ..., 51 which are sequentially conveyed by the conveying unit 10. As a result, the decorative sheet 52 is attached over the surfaces 51a, ..., 51a of the plurality of base materials 51, ..., 51. After that, the decorative sheet 52 is pressed against the surface 51a of each base material 51 by the pressing roll 24 provided on the front side of the sticking roll 23 in the conveying direction by the conveying unit 10. In this way, the decorative sheet 52 is adhered to the surface 51a of each base material 51.

By the way, in the first embodiment, the pressing member (the first) that presses the plurality of base materials 51, ..., 51 sequentially conveyed by the conveying unit 10 between the sticking roll 23 and the pressing roll 24 from above the decorative sheet 52. 1 and 2 second pressing members 26, 27) are provided. Further, the first and second pressing members 26 and 27 are formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52, and the distance d between them is the distance between the base materials (distance between the base materials). It is provided in close proximity so as to be shorter than D). Further, the first pressing member 26 on the rear side is provided so close to the sticking roll 23 that the rear end overlaps the front half portion of the sticking roll 23 in the vertical direction, and the second pressing member 27 on the front side is pressed by the front end. It is provided so close to the pressing roll 24 that it overlaps the latter half of the roll 24 in the vertical direction.

Therefore, in the first embodiment, the plurality of base materials 51, ..., 51 which are sequentially conveyed by the conveying unit 10 are pressed rolls immediately after the decorative sheet 52 is attached to the surfaces 51a, 51a, 51a by the attaching roll 23. Until immediately before being pressed by the 24, the first pressing member 26 and the second pressing member 27 continue to be pressed from above the decorative sheet 52. As a result, the base material 51 is prevented from warping between the sticking roll 23 and the pressing roll 24, and the decorative sheet 52 is prevented from being peeled off from the base material 51.

Further, in the first embodiment, a pressing member (third pressing member 28) similar to the first and second pressing members 26 and 27 is provided on the front side of the pressing roll 24, and the third pressing member 28 is rearward. The end is provided so close to the pressing roll 24 that it overlaps the first half portion of the pressing roll 24 in the vertical direction. Therefore, not only the base material 51 from the sticking roll 23 to the pressing roll 24, but also after passing through the pressing roll 24, the base material 51 is pressed by the third pressing member 28 and is less likely to warp. That is, according to the first embodiment, the decorative sheet 52 is hard to be peeled off even after passing through the pressing roll 24.

(3) Sheet cutting step In the sheet cutting step, the decorative sheet 52 is placed between the two adjacent base materials 51, 51 of the plurality of base materials 51, ..., 51 which are sequentially transported from the rear side to the front side by the transport unit 10. Cut back and forth. The decorative sheet 52 is cut by the sheet cutting portion 31 of the sheet cutting unit 30 that moves from the rear side to the front side at a speed equal to the transport speed of the base material 51 by the transport unit 10.

Specifically, as shown in the upper part of FIG. 7, the sheet cutting portion 31 moves to a predetermined sheet cutting start position by moving (retracting) the base 31f (moving mechanism) of the sheet cutting portion 31. .. The sheet cutting start position is the rearmost position of the sheet cutting portion 31 that reciprocates in the front-rear direction. In the first embodiment, the sheet cutting portion 31 waits at the sheet cutting start position until the blade 31a1 is arranged between the two adjacent base materials 51 and 51 after passing through the sheet bonding unit 20. Then, when the blades 31a1 are arranged between the base materials 51 and 51, the base 31f (movement mechanism) moves (advances) at a speed equal to the transfer speed of the base material 51 by the transfer unit 10, thereby cutting the sheet. The portion 31 advances together with the base materials 51 and 51 while the blades 31a1 are arranged between the base materials 51 and 51.

Further, when the sheet cutting portion 31 reaches the sheet cutting start position, the blade 31a1 is lowered from the upper position to the lower position by the elevating mechanism 31b. Specifically, the blade 31a1 is lowered at the timing of being arranged between the base materials 51 and 51 at the lower position. As a result, the blade 31a1 is arranged at a position where the decorative sheet 52 can be cut. At the same time, the seat pressing portion 32 lowers the front pressing member 34 and the rear pressing member 35 from the upper position to the lower position by the four elevating mechanisms 36, 36, 36, 36. As a result, the rear end portion of the base material 51 on the front side of the cut portion of the decorative sheet 52 and the front end portion of the base material 51 on the rear side of the cut portion of the decorative sheet 52 are formed by the front pressing member 34 and the rear pressing member. It is pressed from above the decorative sheet 52 by the 35.

In the first embodiment, each support member 33 has a sheet cutting portion from the position of the rear end of the rear pressing member 35 at least when the sheet cutting portion 31 is in the sheet cutting start position in the transport direction by the transport unit 10. 31 is formed to have a length extending over the position of the front end of the front pressing member 34 when the sheet cutting end position is reached. Therefore, when the front pressing member 34 and the rear pressing member 35 are driven by the four elevating mechanisms 36, 36, 36, 36 and descend to the lower position, after the base material 51 on the front side of the cut portion of the decorative sheet 52. The end portion and the front end portion of the base material 51 on the rear side of the cut portion of the decorative sheet 52 are vertically sandwiched by the front pressing member 34, the rear pressing member 35, and the support member 33.

Here, as described above, in the first embodiment, the sheet cutting unit 30 has three pressing members 37, 37, 37 interlocking with the sheet cutting portion 31. The three pressing members 37, 37, 37 are formed so that the rear end thereof is close to the front end of the third pressing member 28 when the sheet cutting portion 31 is in the cutting start position. Therefore, the end portion of each base material 51 in the front-rear direction in which the decorative sheet 52 is likely to be peeled off is immediately sent below the holding member 37 waiting at the sheet cutting start position after passing through the third pressing member 28. It is pressed from above the decorative sheet 52 by the pressing member 37.

In this way, the ends of the base materials 51, which are prone to peeling of the decorative sheet 52, are made up by the three pressing members 37, 37, 37 after passing through the sheet adhesive unit 20 and until they are pressed by the sheet pressing portion 32. It is pressed from above to below the seat 52. As a result, peeling of the decorative sheet 52 before cutting the decorative sheet 52 is suppressed. In addition, the three pressing members 37, 37, and 37 make it difficult for each base material 51 to warp, thereby suppressing the peeling of the decorative sheet 52.

When the blade 31a1 and the front pressing member 34 and the rear pressing member 35 reach the lower positions, the blade 31a1 of the sheet cutting portion 31 is rotationally driven by the motor 31a3, and the slider 31c is driven by a motor (not shown). It moves in the width direction of the decorative sheet 52 along the guide member 31d. As a result, the blade 31a1 moves from one end side to the other end side in the width direction of the decorative sheet 52 while rotating at a position where the decorative sheet 52 can be cut, so that the decorative sheet 52 is cut back and forth. As a result, the long decorative sheet 52 is individualized for each base material 51.

Here, as described above, in the first embodiment, the front and rear portions of the cut portion of the decorative sheet 52 are formed of the base material 51 on the front side of the cut portion by the front pressing member 34 and the rear pressing member 35. It is pressed against the rear end portion and the front end portion of the base material 51 on the rear side of the cut portion. Therefore, when the decorative sheet 52 is cut, the decorative sheet 52 is easily peeled off from the base material 51 by the force acting on the decorative sheet 52 by the blade 31a1, and the front pressing member 34 and the rear pressing member 35 end the edges of each base material 51. By pressing the decorative sheet 52 against the portion, the decorative sheet 52 is less likely to be peeled off at the end portion of each base material 51. Further, the front pressing member 34 and the rear pressing member 35 make it difficult for each base material 51 to warp, thereby suppressing the peeling of the decorative sheet 52.

As shown in the lower part of FIG. 7, when the sheet cutting portion 31 finishes cutting the decorative sheet 52 at the sheet cutting end position (the blade 31a1 reaches the other end in the width direction of the decorative sheet 52), the blade The rotation of 31a1 is stopped, and the blade 31a1 is raised from the lower position to the upper position by the elevating mechanism 31b. As a result, the blade 31a1 does not come into contact with the decorative sheet 52. The sheet cutting end position is the frontmost position of the sheet cutting portion 31 that reciprocates in the front-rear direction. At the same time, the seat pressing portion 32 raises the front pressing member 34 and the rear pressing member 35 from the lower position to the upper position by the four elevating mechanisms 36, 36, 36, 36. As a result, the front pressing member 34 and the rear pressing member 35 do not come into contact with the decorative sheet 52.

When the sheet cutting end position reaches the sheet cutting end position, the sheet cutting portion 31 reverses the moving direction of the base 31f (moving mechanism) and retracts to the sheet cutting start position (position in the upper part of FIG. 7). Then, the sheet cutting portion 31 waits until the blade 31a1 is arranged between the next base materials 51 and 51 at the sheet cutting start position, and by the same operation, the decorative sheet is placed between the next base materials 51 and 51. 52 is cut.

(4) Flat plate pressing step In the flat plate pressing step, after the sheet cutting step, a plurality of base materials 51 having a short decorative sheet 52 individualized for each base material 51 attached to the surface are stacked and in that state. , Flat plate press for a predetermined time. As a result, the water-based adhesive 53 dries and hardens between each base material 51 and the decorative sheet 52 to form an adhesive layer. By curing the water-based adhesive 53 between each base material 51 and the decorative sheet 52 in this way, the decorative sheet 52 is laminated and integrated on the surface 51a of each base material 51 via the adhesive layer. When stacking a plurality of base materials 51, the decorative sheets 52 and 52 of the upper and lower base materials 51 and 51 may be stacked so as to be in contact with each other, and the upper base material 51 and the lower base material 51 may be stacked. You may stack them so that they come into contact with each other.

By going through the above steps, the sheet decorative board material 50 in which the decorative sheet 52 is adhered to the surface 51a of the base material 51 and laminated and integrated is continuously manufactured in the manufacturing apparatus 1.

Further, as described above, in the first embodiment, the first and second pressing members 26 and 27 are provided between the sticking roll 23 and the pressing roll, and the third pressing member 28 is provided on the front side of the pressing roll 24. Therefore, three pressing members 37, 37, 37 are provided behind the sheet pressing portion 32 of the sheet cutting unit 30. With such a configuration, in the first embodiment, after the decorative sheet 52 is attached to each base material 51 by the sticking roll 23, the decorative sheet 52 is cut between the decorative sheet 52 and the end portion of the opposing base material 51. Until it is started, it is pressed by the first to third pressing members 26 to 28 and the three pressing members 37, 37, 37. As a result, the base material 51 is less likely to warp and the decorative sheet 52 is less likely to come off from the time the decorative sheet 52 is attached until the cutting of the decorative sheet 52 is started. Further, during cutting of the decorative sheet 52, the ends of the base materials 51 and 51 facing each other in the front-rear direction are pressed downward from above the decorative sheet 52 by the cushioning members 34b and 35b of the sheet pressing portion 32 in a non-airtight state. Can be attached. As a result, the decorative sheet 52 is less likely to be peeled off when the decorative sheet 52 is likely to be peeled off at the end of each base material 51.

Further, even if the decorative sheet 52 is peeled off in the portion not pressed by the first to third pressing members 26 to 28 and the three pressing members 37, 37, 37, the peeled portion of the decorative sheet 52 Shortly after the water-based adhesive 53 dries, it is pressed by the next pressing member or the front pressing member 34 of the sheet pressing portion 32 and the rear pressing member 35, and is brought into close contact again. Therefore, even when the water-based adhesive 53 is used as in the first embodiment, the decorative sheet 52 can be adhered to the surface 51a of the base material 51 without peeling off.

-Effect of Embodiment 1-
In the first embodiment, the pressing members (first and first) press the plurality of base materials 51, ..., 51 sequentially conveyed by the conveying unit 10 between the sticking roll 23 and the pressing roll 24 from above the decorative sheet 52. Second pressing members 26, 27) are provided. Therefore, the plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 are placed between the sticking roll 23 and the pressing roll 24 from above the decorative sheet 52 by the first and second pressing members 26, 27. It is suppressed. As a result, according to the first embodiment, the warp of the base material 51 between the sticking roll 23 and the pressing roll 24 can be suppressed, so that there is a height difference between the ends of the adjacent base materials 51 and 51. When the decorative sheet 52 is peeled off at the end of each base material 51 or the base material 51 is pressed from above the decorative sheet 52 with the pressing roll 24, the water-based adhesive 53 is generated by the front end and the rear end of the base material 51. There is no risk of being taken away. Therefore, according to the first embodiment, it is possible to manufacture a sheet decorative board material in which the decorative sheet 52 does not come off.

In the first embodiment, the first and second pressing members 26 and 27 are formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52, and are between the sticking roll 23 and the pressing roll 24. The plurality of base materials 51, ..., 51 which are sequentially conveyed by the transfer unit 10 are integrally pressed from one end to the other end in the width direction. Therefore, according to the first embodiment, immediately after the decorative sheet 52 is attached, the base material 51 is integrally pressed from one end to the other end in the width direction by the first and second pressing members 26 and 27. Compared with the case where the base material 51 is partially pressed, the warp of the base material 51 can be further suppressed, and the peeling of the decorative sheet 52 can be further suppressed.

In the first embodiment, two pressing members (first and second pressing members 26, 27) for pressing the base material 51 from above the decorative sheet 52 are provided between the sticking roll 23 and the pressing roll 24. There is. Further, the first and second pressing members 26 and 27 are provided close to each other so that the distance d between them is shorter than the distance D between the base materials. Further, the first pressing member 26 on the rear side is provided so close to the sticking roll 23 that the rear end overlaps the front half portion of the sticking roll 23 in the vertical direction, and the front end of the second pressing member 27 on the front side presses. It is provided so close to the pressing roll 24 that it overlaps the latter half of the roll 24 in the vertical direction. By providing the two pressing members 26, 27 in this way, the plurality of base materials 51, ..., 51 which are sequentially conveyed by the conveying unit 10 are immediately after the decorative sheet 52 is attached to the surface by the attaching roll 23. The first pressing member 26 and the second pressing member 27 are pressed from above the decorative sheet 52 almost all the time until immediately before being pressed by the pressing roll 24. According to such a configuration, the warp of the base material 51 can be further suppressed, and the peeling of the decorative sheet 52 can be further suppressed.

In the first embodiment, the attachment roll 23 and the pressing roll 24 are configured so that the installation height can be changed, and when the installation height of the attachment roll 23 is changed, the installation height of the first pressing member 26 is automatically changed. It is configured so that the installation height of the second pressing member 27 is automatically changed when the installation height of the pressing roll 24 is changed. With such a configuration, the installation heights of the first pressing member 26 and the second pressing member 27 are automatically set by simply adjusting the heights of the sticking roll 23 and the pressing roll 24 according to the thickness of the base material 51. The height corresponds to the thickness of the base material 51. Therefore, according to the first embodiment, the heights of the first and second pressing members 26 and 27 can be easily changed to the heights corresponding to the thickness of the base material 51.

In the first embodiment, a pressing member (third pressing member 28) that presses a plurality of base materials 51, ..., 51 sequentially conveyed by the conveying unit 10 from above the decorative sheet 52 is also provided on the front side of the pressing roll 24. It is provided. Further, the third pressing member 28 is provided so close to the pressing roll 24 that the rear end overlaps the front half portion of the pressing roll 24 in the vertical direction. Therefore, according to the first embodiment, even after passing through the pressing roll 24, the base material 51 is pressed by the third pressing member 28 and is less likely to warp, so that the peeling of the decorative sheet 52 on each base material 51 is further suppressed. be able to.

By the way, while the plurality of base materials 51, ..., 51 are sequentially transported from the rear side to the front side by the transport unit 10, the pressing members (first to third pressing members 26) that press the decorative sheet 52 against the substrate 51. ~ 28) does not move in the front-back direction. Therefore, depending on the shape of the rear end portion of the first to third pressing members 26 to 28, the decorative sheet 52 is twisted by the corner portion of the rear end portion of the first to third pressing members 26 to 28 that abuts on the decorative sheet 52. There is a risk of peeling.

On the other hand, in the first embodiment, since the rear end portions of the first to third pressing members 26 to 28 are formed so as to be located upward toward the rear in the front-rear direction, the first to third pressing members 26 to 28 are formed. The corners of the rear ends of the third pressing members 26 to 28 do not come into contact with the decorative sheet 52. Therefore, the decorative sheet 52 attached to the surface 51a of the base material 51 can be smoothly placed on the first to third pressing members 26 without being twisted by the corners of the rear ends of the first to third pressing members 26 to 28. It will be sent below ~ 28 and pressed against the base material 51. Therefore, according to the first embodiment, it is possible to prevent the decorative sheet 52 from being twisted by providing the first to third pressing members 26 to 28.

By the way, when the pressing members (first to third pressing members 26 to 28) made of a material having high hardness are used, the decorative sheet 52 is pressed linearly or planarly by the first to third pressing members 26 to 28. There is a risk that the attached marks will remain or the decorative sheet 52 will be twisted. Further, when the pressing members (first to third pressing members 26 to 28) are made of members that abut with the decorative sheet 52 in an airtight state, the first to third pressing members 26 to 28 are in close contact with the decorative sheet 52. There is a risk that the decorative sheet 52 will be peeled off.

In the first embodiment, the first to third pressing members 26 to 28 are composed of plate-shaped members 26a to 28a and cushioning members 26b to 28b attached to the lower end surfaces of the plate-shaped members 26a to 28a. .. By forming the lower portions of the first to third pressing members 26 to 28 with the cushioning members 26b to 28b in this way, the first to third pressing members 26 to 28 press the decorative sheet 52 linearly or planarly. No traces are left or the decorative sheet 52 is not twisted. Further, in the first embodiment, the cushioning members 26b to 28b are composed of members that come into contact with the decorative sheet 52 in a non-airtight state. Therefore, the first to third pressing members 26 to 28 do not adhere to the decorative sheet 52, and the decorative sheet 52 does not come off. Therefore, according to the first embodiment, the decorative sheet 52 can be pressed against the base material 51 without causing traces or kinks of pressing against the decorative sheet 52 and without peeling off the decorative sheet 52.

In the first embodiment, the buffer members 26b to 28b are formed of a non-woven fabric. With such a configuration, according to the first embodiment, the cushioning members 26b to 28b that come into contact with the decorative sheet 52 in a non-airtight state can be easily configured.

By the way, when the decorative sheet 52 is cut, the pressure applied by the blade 31a1 acts on the decorative sheet 52, so that the decorative sheet 52 is easily peeled off at the end of each base material 51.

On the other hand, in the first embodiment, when the decorative sheet 52 is cut, the manufacturing apparatus 1 presses the ends of the base materials 51 and 51 before and after the cut portion of the decorative sheet 52 from above the decorative sheet 52. A sheet pressing portion 32 having a pressing member 34 and a rear pressing member 35 is provided. Therefore, in the first embodiment, after the decorative sheet 52 is adhered over the surfaces 51a, ..., 51a of the plurality of base materials 51, ..., 51 in the sheet adhesive unit 20, two adjacent sheets are adhered by the sheet cutting portion 31. When the decorative sheet 52 is cut between the base materials 51 and 51, the front and rear portions of the cut portion of the decorative sheet 52 are formed into the base material 51 by the front pressing member 34 and the rear pressing member 35 of the sheet pressing portion 32. Be pressed. Therefore, when the decorative sheet 52 is likely to be peeled off at the end of each base material 51, the decorative sheet 52 is less likely to be peeled off. Therefore, according to the first embodiment, it is possible to suppress the peeling of the decorative sheet 52 even when the decorative sheet 52 is likely to be peeled off from the base material 51.

Further, in the first embodiment, the front pressing member 34 and the rear pressing member 35 are moved in the front-rear direction by the moving mechanism (base 31f) in accordance with the transport of the base material 51 by the transport unit 10, and are adjacent to each other. When the decorative sheet 52 is cut between the base materials 51 and 51, the rear end portion of the front base material 51 and the front end portion of the rear base material 51 are arranged at positions where they can be pressed. Therefore, after cutting the decorative sheet 52, the front pressing member 34 and the rear pressing member 35 move in the direction opposite to the transport direction of the base material 51 and move between the next base materials 51 and 51. At that time, the front pressing member 34 and the rear pressing member 35 are moved upward by the elevating mechanisms 36 and 36 and do not come into contact with the decorative sheet 52. Therefore, according to the first embodiment, when the front pressing member 34 and the rear pressing member 35 move (retract) in the direction opposite to the transport direction of the base material 51, the decorative sheet 52 is prevented from peeling off. Can be done.

Further, in the first embodiment, when the front pressing member 34 and the rear pressing member 35 press the decorative sheet 52 against the rear end portion of the front base material 51 and the front end portion of the rear base material 51, the front side A support member 33 is provided to support the rear end portion of the base material 51 and the front end portion of the base material 51 on the rear side from below. Therefore, for example, even when the base material 51 is conveyed by a belt conveyor or the like, the base material 51 sinks when the front side pressing member 34 and the rear side pressing member 35 press the decorative sheet 52 against the base material 51. It will be supported from below by the support member 33 without getting stuck. Therefore, according to the first embodiment, the decorative sheet 52 can be reliably pressed against the base material.

Further, in the first embodiment, the lower ends of the front pressing member 34 and the rear pressing member 35 are composed of cushioning members 34b and 35b that come into contact with the decorative sheet 52 in a non-airtight state. Therefore, the front pressing member 34 and the rear pressing member 35 come into contact with the decorative sheet 52 in a non-airtight state when the decorative sheet 52 is cut, so that the decorative sheet 52 is peeled off from the base material 51 when it is separated from the decorative sheet 52. It never ends up. Therefore, according to the first embodiment, it is possible to suppress the peeling of the decorative sheet 52 by the front pressing member 34 and the rear pressing member 35 after cutting the decorative sheet 52.

<< 2nd Embodiment of the Invention >>
The second embodiment is a modification of a part of the configuration of the sheet decorative board material manufacturing apparatus 1 of the first embodiment. In the following, only the configuration different from the first embodiment will be described in detail.

As shown in FIG. 8, in the second embodiment, two pressing members (first and second pressing members) provided between the sticking roll 23 and the pressing roll 24 in the sheet decorative board material manufacturing apparatus 1 of the first embodiment The members 26, 27) are composed of one pressing member 29.

The pressing member 29 is formed to have a length longer than the separation distance between the sticking roll 23 and the pressing roll 24 (the distance between the front end 23b of the sticking roll 23 and the rear end 24b of the pressing roll 24) in the front-rear direction. Further, the pressing member 29 is provided so close to the pasting roll 23 that the rear end overlaps the front half portion of the sticking roll 23 in the vertical direction, and presses so that the front end overlaps the latter half portion of the pressing roll 24 in the vertical direction. It is provided close to the roll 24. Specifically, the rear end of the pressing member 29 is positioned in the first region A1 between the central axis 23a and the front end 23b of the sticking roll 23 in the front-rear direction, and the rear end is in the front-rear direction. It is provided so as to be positioned in the second region A2 between the central axis 24a and the rear end 24b of the pressing roll 24.

The pressing member 29 has a plate-shaped member 29a and a cushioning member 29b attached to the lower end surface of the plate-shaped member 29a. The plate-shaped member 29a is composed of a metal plate long in the width direction of the decorative sheet 52. The plate-shaped member 29a is formed to have a length longer than the width of the decorative sheet 52 in the width direction of the decorative sheet 52. The cushioning member 29b is formed in a shape equal to the plate-shaped member 29a in a plan view. In the second embodiment, the cushioning member 29b is made of a non-woven fabric. With such a configuration, the pressing member 29 transfers a plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 between the sticking roll 23 and the pressing roll 24 in the width direction from above the decorative sheet 52. It is configured to be integrally pressed from one end to the other end in a non-airtight state.

The pressing member 29 is formed in a shape in which the rear end portion 29r is located upward as the rear end portion 29r moves toward the rear in the front-rear direction. In the second embodiment, the pressing member 29 is rearward by bending the rear end portion of the plate-shaped member 29a upward and attaching the cushioning member 29b to the lower end surface of the plate-shaped member 29a along the lower end surface. The end portion 29r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 29r of the pressing member 29 may have a curved shape as long as it is positioned upward toward the rear in the front-rear direction.

Further, in the second embodiment, the sticking roll 23 and the pressing roll 24 are configured so that the installation height can be changed, and the mounting height of the sticking roll 23 and the pressing roll 24 are installed by one height adjustment work. The sticking roll 23 and the pressing roll 24 are connected via a connecting member (not shown) so that both heights can be changed. The sticking roll 23 and the pressing roll 24 are connected so that their lower ends are positioned at substantially the same height.

Then, in the second embodiment, the pressing member 29 presses the attaching roll 23 and the pressing roll 24 via a connecting member (not shown) so that the installation height is changed according to the change in the installation height of the attaching roll 23 and the pressing roll 24. It is connected to the roll 24. The pressing member 29 is connected to the sticking roll 23 and the pressing roll 24 so that the lower end thereof is positioned at substantially the same height as the lower ends of the sticking roll 23 and the pressing roll 24.

With the above configuration, the same effect as that of the first embodiment can be obtained by the second embodiment.

Further, according to the second embodiment, the two pressing members (first and second pressing members 26, 27) provided in the first embodiment are composed of one pressing member 29. Further, the pressing member 29 is formed to have a length longer than the separation distance between the sticking roll 23 and the pressing roll 24 in the front-rear direction, and is closer to the sticking roll 23 so that the rear end overlaps the front half portion of the sticking roll 23 in the vertical direction. It is provided so close to the pressing roll 24 that the front end overlaps the latter half portion of the pressing roll 24 in the vertical direction. By configuring the pressing member 29 provided between the sticking roll 23 and the pressing roll 24 in this way, the plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 are surfaced by the sticking roll 23. From immediately after the decorative sheet 52 is attached to the 51a to immediately before being pressed by the pressing roll 24, the decorative sheet 52 is continuously pressed from above the decorative sheet 52 by the pressing member 29. According to such a configuration, the warpage of the base material 51 can be further suppressed, so that the peeling of the decorative sheet 52 can be more reliably suppressed.

<< Embodiment 3 of the invention >>
The third embodiment is a modification of a part of the configuration of the sheet decorative board material manufacturing apparatus 1 of the first embodiment. In the following, only the configuration different from the first embodiment will be described in detail.

As shown in FIG. 9, in the third embodiment, in the sheet decorative board material manufacturing apparatus 1 of the first embodiment, a fourth pressing member 40 (base material pressing member) is further provided on the rear side of the sticking roll 23. ..

The fourth pressing member 40 is configured to press the base material 51 before the decorative sheet 52 is attached on the attaching roll 23 downward. In the third embodiment, the fourth pressing member 40 is connected to the sticking roll 23 via a connecting member (not shown) so that the installation height is changed according to the change of the mounting height of the sticking roll 23. .. The fourth pressing member 40 is connected to the sticking roll 23 so as to be positioned at a height at which the surface 51a of the base material 51 conveyed by the conveying unit 10 can be pressed downward.

The fourth pressing member 40 has a plate-shaped member 40a and a cushioning member 40b attached to the lower end surface of the plate-shaped member 40a, similarly to the first to third pressing members 26 to 28. The plate-shaped member 40a is composed of a metal plate long in the width direction of the base material 51. The plate-shaped member 40a is formed to have a length longer than the width of the base material 51 in the width direction of the base material 51. The cushioning member 40b is formed in a shape equal to the plate-shaped member 40a in a plan view. In the third embodiment, the cushioning member 40b is made of a non-woven fabric. With such a configuration, the fourth pressing member 40 integrally conveys a plurality of base materials 51, ..., 51 sequentially transported by the transport unit 10 from one end to the other end in the width direction on the rear side of the sticking roll 23. It is configured to hold down in a non-airtight state.

Further, the fourth pressing member 40 is formed in a shape in which the rear end portion 40r is located upward as the rear end portion 40r is directed toward the rear in the front-rear direction, similarly to the first to third pressing members 26 to 28. In the third embodiment, the fourth pressing member 40 is formed by bending the rear end portion of the plate-shaped member 40a upward and attaching the cushioning member 40b to the lower end surface of the plate-shaped member 40a along the lower end surface. The rear end portion 40r is formed so as to be located upward toward the rear in the front-rear direction. The rear end portion 40r of the fourth pressing member 40 may have a curved shape as long as it is positioned upward toward the rear in the front-rear direction.

Further, the fourth pressing member 40 is provided so close to the sticking roll 23 that the front end overlaps the latter half portion of the sticking roll 23 in the vertical direction. Specifically, the fourth pressing member 40 is provided so that the front end is positioned in the fourth region A4 between the central axis 23a and the rear end 23c of the sticking roll 23 in the front-rear direction.

As described above, in the third embodiment, the fourth pressing member 40 is provided on the rear side of the sticking roll 23 in the vicinity of the sticking roll 23. Other configurations are the same as those in the first embodiment.

By the way, among the plurality of base materials 51, ..., 51 which are sequentially conveyed by the conveying unit 10, some warpage occurs before the decorative sheet 52 is attached on the attaching roll 23. When the base material 51 having such a warp is conveyed directly below the sticking roll 23, the decorative sheet 52 is originally stuck to the surface 51a of the base material 51 at the lowest point of the sticking roll 23. The raised front end of the base material 51 comes into contact with the sticking roll 23, and the decorative sheet 52 to which the water-based adhesive 53 applied to the back surface of the decorative sheet 52 has a non-uniform film thickness is partially attached. There is a risk that the decorative sheet 52 may be easily peeled off or the decorative sheet 52 may be twisted and attached.

On the other hand, in the third embodiment, a fourth pressing member 40 for pressing the base material 51 downward is provided in the vicinity of the sticking roll 23 on the rear side of the sticking roll 23, and the raised front end of the warped base material 51 is provided. Is pressed downward by the fourth pressing member 40 before being conveyed below the sticking roll 23, so that the front end of the base material 51 does not come into contact with the sticking roll 23. With such a configuration, even if the base material 51 is warped, it is conveyed below the sticking roll 23 in a state where the warp is corrected by the fourth pressing member 40, and the decorative sheet 52 is stuck. Therefore, according to the third embodiment, the decorative sheet 52 is attached to the warped base material 51 with the water-based adhesive 53 applied to the back surface of the decorative sheet 52 having a non-uniform film thickness. The decorative sheet 52 can be attached to the surface 51a without being partially peeled off or the decorative sheet 52 being attached by twisting.

<< Other Embodiments >>
In each of the above embodiments, the pressing member (third pressing member 28) is also provided on the front side of the pressing roll 24, but the sheet cutting start position (the position of the sheet cutting portion 31 in the upper part of FIG. 7) is the pressing roll 24. The third pressing member 28 may be omitted as long as the base material 51 is immediately pressed from above the decorative sheet 52 by the pressing member 37 after passing through the pressing roll 24.

Further, in each of the above embodiments, the sheet cutting unit 30 has a pressing member 37 that does not move up and down separately from the sheet pressing portion 32, but the pressing member 37 is omitted and the rear pressing member 35 is pressed. It may be formed longer in the front-rear direction by 37 minutes.

Further, in each of the above embodiments, only one pressing roll 24 is provided, but a plurality of pressing rolls 24 may be provided. In that case, it is preferable to provide a pressing member having the same structure as the first to third pressing members 26 to 28 between each of the plurality of rolls 24, ..., 24.

Further, in each of the above embodiments, the sheet pressing portion 32 is provided on the base 31f of the sheet cutting portion 31, and is configured to move in the front-rear direction together with the sheet cutting portion 31 by the base 31f. The 32 may have a moving mechanism for moving in the front-rear direction separately from the sheet cutting portion 31. Even in that case, the sheet pressing portion 32 may be configured to operate in the same manner as the operation of the sheet cutting portion 31.

Further, in each of the above embodiments, the installation positions of the support members 33 are fixed, and the front pressing member 34 and the rear pressing member 35 use the decorative sheet 52 as the base material 51 from the sheet cutting start position to the sheet cutting end position. While moving while pressing against 51, it was always formed to have a length in the front-rear direction facing the front-side pressing member 34 and the rear-side pressing member 35 in the vertical direction. However, each support member 33 is not limited to that of the first embodiment. Each support member 33 may be provided on the base 31f of the sheet cutting portion 31 and may be configured to move in the front-rear direction together with the sheet cutting portion 31 by the base 31f. Further, each support member 33 has a moving mechanism for moving in the front-rear direction separately from the sheet cutting portion 31, and may move in the front-rear direction in the same manner as the sheet cutting portion 31. When each support member 33 is configured to be movable in the front-rear direction like the sheet cutting portion 31, each support member 33 has a length in the front-rear direction at least from the front end of the front pressing member 34 when stationary. Since it is sufficient to secure the length to the rear end of the rear pressing member 35, the length in the front-rear direction can be made shorter than that of the first embodiment.

Further, in the case where each support member 33 is connected to a base 31f (moving mechanism) that moves the front pressing member 34 and the rear pressing member 35 in the front-rear direction, the support member 33 is the front pressing member 34 and the rear pressing member 34. It moves in the front-rear direction together with the member 35. That is, the support member 33 moves in the transport direction of the base material 51 together with the front side pressing member 34 and the rear side pressing member 35 in a state where the base material 51 transported by the transport unit 10 is sandwiched in the vertical direction. Therefore, according to such a form, when the position of the support member 33 is fixed as in the first embodiment, the transfer direction is caused by friction with the support member 33 on the base material 51 conveyed by the transfer unit 10. When a force acts in the opposite direction, the support member 33 moves in the transport direction of the base material 51, so that such a frictional force does not act, so that the transport of the base material 51 is not hindered.

Further, in each of the above embodiments, the sheet cutting portion 31 has a cutting mechanism 31a, an elevating mechanism 31b, a slider 31c, a guide member 31d, two columns 31e, and a base 31f (moving mechanism). However, the configuration of the sheet cutting portion 31 is not limited to the configuration of the first embodiment. The sheet cutting portion 31 is configured to be able to cut the decorative sheet 52 back and forth between two adjacent base materials 51 and 51 while moving from the rear side to the front side at a speed equal to the transport speed of the base material 51 by the transport unit 10. Any configuration may be used as long as it is used. The sheet cutting portion 31 may, for example, have no blade 31a1 and cut the decorative sheet 52 with a laser.

Further, in each of the above embodiments, the cutting mechanism 31a is configured to have a blade 31a1 made of a circular blade member that moves in the width direction of the decorative sheet 52, but the cutting mechanism 31a has the decorative sheet 52. Anything that can be cut may be used. For example, the cutting mechanism 31a has a blade made of a blade member long in the width direction extending from one end to the other end in the width direction of the decorative sheet 52, and moves from the upper position to the lower position to once move the decorative sheet 52. It may be the one that cuts.

Further, in each of the above embodiments, the cushioning members 26b to 29b, 34b, 35b, 37b, 40b of the pressing members 26 to 29, 37, 40 and the pressing members 34, 35 are made of a non-woven fabric. The buffer members 26b to 29b, 34b, 35b, 37b, 40b according to the present invention are not limited to the non-woven fabric. In the buffer members 26b to 29b, 34b, 35b, 37b, 40b, each pressing member 26 to 29, 37, 40 and each pressing member 34, 35, such as an open cell foam or felt, have a base material 51 as a decorative sheet 52. When pressed or pressed from above, the decorative sheet 52 abuts in a non-airtight state and is compressed and deformed between the plate-shaped members 26a to 29a, 34a, 35a, 37a, 40a and the decorative sheet 52. It may be composed of anything as long as it is composed of.

Further, in each of the above embodiments, the die coater 21 is exemplified as a coating device for applying the adhesive 53 to the back surface of the decorative sheet 52, but the coating device may be a knife coater, a comma coater, or the like. When a knife coater or a comma coater is used as the coating device, a pump other than the positive displacement type may be used.

Further, in the third embodiment, an example in which the fourth pressing member 40 is provided in the sheet decorative board material manufacturing apparatus 1 of the first embodiment has been described, but the fourth pressing member 40 manufactures the sheet decorative board material of the first embodiment. It can be applied not only to the device 1 but also to the modifications of the second embodiment and the first and second embodiments.

INDUSTRIAL APPLICABILITY The present invention is useful for a device for manufacturing a sheet decorative board material that continuously adheres a decorative sheet to the surfaces of a plurality of base materials.

1 Manufacturing equipment
10 Conveying unit (conveying unit)
20 Sheet adhesive unit (sheet adhesive part)
23 Sticking roll
23a central axis
23b front end
24 Pressing roll
24a central axis
24b rear end
24c front end
26 First holding member (holding member)
27 Second holding member (holding member)
28 Third holding member (holding member)
26a-28a Plate-shaped member
26b-28b cushioning member
26r-28r rear end
31 Sheet cutting part
31b Lifting mechanism
31f base (movement mechanism)
32 Sheet pressing part
33 Support member
34 Front pressing member
35 Rear pressing member
34a, 35a Plate-shaped member
34b, 35b cushioning member
36 Lifting mechanism
50 sheet decorative board material
51 Base material
51a surface
52 Cosmetic sheet
53 Adhesive (water-based adhesive)

Claims (11)

It is a sheet decorative board material manufacturing apparatus that continuously manufactures a sheet decorative board material in which a decorative sheet is adhered to the surface of a plate-shaped base material and laminated and integrated.
A transport unit that transports the plurality of the above-mentioned base materials from the rear side to the front side at predetermined intervals, and
A sticking roll for sticking the decorative sheet coated with a water-based adhesive on the back surface over the front surfaces of the plurality of base materials sequentially transported by the transport portion, and a sticking roll provided on the front side of the sticking roll and provided by the transport portion. A sheet adhesive portion that has a pressing roll that presses the plurality of substrates to be sequentially conveyed from above the decorative sheet and adheres the decorative sheet over the surfaces of the plurality of substrates.
A sheet cutting portion for cutting the decorative sheet back and forth between two adjacent base materials while moving from the rear side to the front side at a speed equal to the transport speed of the base material by the transport portion is provided.
A pressing member is provided between the sticking roll and the pressing roll to press the plurality of base materials sequentially conveyed by the conveying portion from above the decorative sheet .
The pressing member has a plate-shaped member extending in the width direction of the decorative sheet and a cushioning member attached to the lower end surface of the plate-shaped member and in contact with the decorative sheet in a non-airtight state. > A manufacturing device for sheet decorative board materials, which is characterized by this. In the sheet decorative board material manufacturing apparatus according to claim 1,
The pressing member is formed to have a length longer than the width of the decorative sheet in the width direction of the decorative sheet, and the plurality of base materials sequentially conveyed by the conveying portion are integrated from one end to the other end in the width direction. A sheet decorative board material manufacturing apparatus characterized in that it is configured to be pressed down. In the sheet decorative board material manufacturing apparatus according to claim 2,
Two pressing members are provided between the sticking roll and the pressing roll so as to be lined up in the front-rear direction.
The first pressing member on the rear side of the two pressing members is provided so that the rear end is positioned between the central axis and the front end of the sticking roll in the front-rear direction.
The second pressing member on the front side of the two pressing members is provided so that the front end is positioned between the central axis and the rear end of the pressing roll in the front-rear direction.
The first pressing member and the second pressing member are characterized in that the distance between the first pressing member and the second pressing member in the front-rear direction is shorter than the distance between the two adjacent base materials in the front-rear direction. Sheet decorative board material manufacturing equipment. In the sheet decorative board material manufacturing apparatus according to claim 3,
The sticking roll and the pressing roll are configured so that the installation height can be changed.
The first pressing member is connected to the sticking roll so that the installation height is changed in conjunction with the change of the mounting height of the sticking roll.
The second pressing member is a sheet decorative board material manufacturing apparatus, characterized in that the second pressing member is connected to the pressing roll so that the installation height is changed in conjunction with the change of the installation height of the pressing roll. In the sheet decorative board material manufacturing apparatus according to claim 2,
The pressing member is formed to have a length longer than the separation distance between the sticking roll and the pressing roll in the front-rear direction, and the rear end is positioned between the central axis and the front end of the sticking roll in the front-rear direction. Is provided so as to be positioned between the central axis and the rear end of the pressing roll, which is a sheet decorative board material manufacturing apparatus. In the sheet decorative board material manufacturing apparatus according to claim 2,
The pressing member is also provided on the front side of the pressing roll.
The pressing member provided on the front side of the pressing roll is a sheet decorative board material characterized in that the rear end is provided so as to be positioned between the central axis and the front end of the pressing roll in the front-rear direction. Manufacturing equipment. In the sheet decorative board material manufacturing apparatus according to any one of claims 1 to 6.
The pressing member is a sheet decorative board material manufacturing apparatus, characterized in that the rear end portion is formed in a shape located upward toward the rear in the front-rear direction. In the sheet decorative board material manufacturing apparatus according to any one of claims 1 to 7 .
The cushioning member is an apparatus for manufacturing a sheet decorative board material, which is formed of a foam of open cells, a non-woven fabric, or felt. In the sheet decorative board material manufacturing apparatus according to any one of claims 1 to 8 .
When the sheet cutting portion cuts the decorative sheet, the front pressing member that presses the rear end portion of the base material on the front side of the cut portion of the decorative sheet from above the decorative sheet, and the sheet cutting portion. When cutting the decorative sheet, it is provided with a sheet pressing portion having a rear pressing member that presses the front end portion of the base material on the rear side of the cut portion of the decorative sheet from above the decorative sheet. A device for manufacturing sheet decorative board materials, which is characterized by this. In the sheet decorative board material manufacturing apparatus according to claim 9 ,
The sheet pressing part is
When the sheet cutting portion cuts the decorative sheet, the front pressing member and the rear pressing member can press the rear end portion of the front base material and the front end portion of the rear base material, respectively. A moving mechanism that moves the front pressing member and the rear pressing member in the front-rear direction so as to be arranged at the position.
Between the upper position where the front pressing member and the rear pressing member do not abut on the decorative sheet and the lower position where the front pressing member and the rear pressing member press the base material from above the decorative sheet. The front pressing member and the elevating mechanism for moving the rear pressing member up and down are provided.
When the sheet cutting portion cuts the decorative sheet, the elevating mechanism moves the front pressing member and the rear pressing member to the lower position, and the moving mechanism moves the front pressing member and the rear pressing member to the rear side. An apparatus for manufacturing a sheet decorative board material, which is configured to move the front pressing member and the rear pressing member to the upper position when the pressing member retracts. In the sheet decorative board material manufacturing apparatus according to claim 10 ,
A support provided below the plurality of base materials to support the rear end portion of the front base material and the front end portion of the rear base material from below when the sheet cutting portion cuts the decorative sheet. A sheet decorative board material manufacturing apparatus characterized in that it is provided with a member.

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