JPH0647280B2 - Manufacturing method of composite board - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a composite plate material in which a large number of rectangular pieces are fixed to a flat surface plate to obtain a thick plate material such as a floor plate. Is.

(Prior Art) Generally, in this type of composite plate material, each piece is fixed to a surface plate with a slight gap therebetween, thereby reducing bending rigidity and making it easy to fit into a mating member.

By the way, as a conventional technique, there is a manufacturing method shown in FIGS.

First, as shown in FIG. 4, a large number of rectangular wooden pieces 3 are laid side by side and placed on the guide rail 1.

The guide rail 1 has a carry-in part (left part) 1a and a carry-out part (right part) 1c formed horizontally, and a middle part formed into a curved part 1b curved downward along the guide roller 2. The pieces 3 are transferred to the right along with.

Below the carry-in portion 1a of the guide rail 1, a circular saw 4, a wire rod 5 on which an aluminum wire 5a is wound, and a disc-shaped press-fitted disc 6 are sequentially arranged toward the right. Further, the sander 7 is provided below the carry-out section 1c. These circular saw 4, wire feed roll 5, press-fitted disc 6, sander 7
Are provided in parallel in a pair at both longitudinal ends of the piece 3 placed on the guide rail 1.

Then, when each piece 3 is transferred to the right by the guide rail 1, first, at the carry-in portion 1a of the guide rail 1, a pair of concave grooves 3a are formed at the lower ends of the piece 3 by the circular saw 4. Next, the wire rod 5a fed from the wire rod supply roll 5 is press-fitted into each concave groove 3a by the press-fitting disc 6,
As a result, the pieces 3 are connected to each other in a state where they are spread side by side.

Next, each of the connected pieces 3 is pressed by the curved portion 1b of the guide rail 1 and the guide roller 2 to be bent in an arc shape, thereby carrying a predetermined gap between the pieces 3.
To form.

Next, in the carry-out section 1c of the guide rail 1, the wire rod 5a is cut by the cutter 7 every time a predetermined number of pieces 3 pass, and the piece group 8 is obtained.

Then, as shown in FIG. 5, the lower surface of the piece group 8 is placed on a flat surface plate 9 and fixed thereto, and then, as shown in FIG. Finish in thickness and surface accuracy.

(Problems to be Solved by the Invention) In the above-mentioned conventional one, the concave groove 3a is formed on the back surface of the piece,
By embedding the wire 5a in the groove 3a, the pieces 3 are connected to each other, so that a thin piece cannot be used and the wire 5a and the groove 3a are not used.
A circular saw 4 and the like for forming are required, and there is a drawback that material cost and equipment cost increase.

It is an object of the present invention to obtain a novel method for manufacturing a composite plate material that solves the above drawbacks.

(Means for Solving the Problems) The present invention is configured as follows in order to achieve the above object.

That is, a large number of pieces formed in a rectangular shape are spread side by side and transferred in the lateral direction, and a curved transfer path that curves in a direction orthogonal to the transfer direction is provided in the middle of this transfer direction, and each piece that arrives at the curved transfer path is provided. Adhesive tape is attached to the outer peripheral surface of the piece continuously in the lateral direction of each piece, the adhesive tape is extended linearly, and the lower surface of each piece fixed to the adhesive tape is fixed to a flat surface plate. It is configured to do.

(Operation) Since the present invention has the above-described configuration, the outer peripheral sides of the facing end surfaces of the pieces that have arrived at the curved transfer path are separated from each other, and the pieces are fixed to the outer peripheral surface in the separated state. It will be connected to each other by an adhesive tape.

Then, the adhesive tape is linearly extended, and the inner peripheral surface of each piece fixed to this is fixed to a flat surface plate, and each piece is fixed to the surface plate while maintaining a predetermined gap therebetween. Will be.

(Examples) Examples of the present invention will be described below with reference to the drawings.

In the drawings, FIG. 1 is a schematic side view showing a state in which an adhesive tape is attached to a piece, and FIG. 2 is a cross-sectional side view showing a state in which pieces connected by an adhesive tape are fixed to a surface plate. The figure is a cross-sectional side view showing a finished state.

In FIG. 1, reference numeral 15 denotes a guide rail. The guide rail 15 is a curved portion (curved portion that bends upwardly along a guide roller 16 in a horizontal direction at a carry-in portion (left portion) 15a toward the right. Transfer section) 15b, unloading section (right section) 1
5c is formed horizontally from the upper portion of the curved portion 15b toward the right side.

A tape roll 17 wound with an adhesive tape 18 such as gum tape and a pressure roller 19 are arranged radially outside the curved portion 15b of the guide rail 15, and a cutter 20 is arranged above the carry-out portion 15c. .

These tape roll 17, pressure roller 19, cutter 20
Are provided in parallel in the width direction of the guide rail 15.

A large number of rectangular wooden pieces 21 are laid side by side on the upper surface of the guide rail 15, and are placed by the transfer roller 25 arranged on the left side of the guide rail 15. Transfer to the right along.

Then, the adhesive tape 18 fed from the tape roll 17 is continuously supplied to the upper surface (outer peripheral surface) of each piece 21a reaching the curved portion 15b of the guide rail 15, and the upper surface of the piece 21a is pressed by the pressure roller 19. Pressure bond to.

In this case, the adjacent pieces 21 and 21 that have reached the curved portion 15b have a predetermined gap on the outer peripheral side of the facing end faces thereof.
(A) occurs, and in this state, the pieces 21 are connected to each other by the adhesive tape 18 fixed to the upper surface thereof.

Next, at the carry-out section 15c of the guide rail 15, the piece 2
The adhesive tape 18 is cut by the cutter 20 every time a predetermined number of 1 passes, and the piece group 22 is obtained.

Next, as shown in FIG. 2, the adhesive tape 18 is linearly extended by pulling the pieces 21b, 21b at the left and right ends of the piece group 22 in the left-right direction.
After the lower surface (inner peripheral surface) of No. 1 is placed and fixed on a flat surface plate 23, the upper and lower surfaces are finished by a sander 24 as shown in FIG. Finish to thickness.

(Effects of the Invention) As is apparent from the above description, according to the present invention, a predetermined gap is generated on each outer peripheral side of the facing end faces of the adjacent pieces in the curved transfer path, in this state. Since the adhesive tape is fixed to the outer peripheral surface of each piece and connected to each other, and the inner peripheral surface of each piece is fixed to the flat surface plate by extending this adhesive tape in a straight line. There is an effect that a predetermined piece can be used without the manufacturing cost and the manufacturing cost can be reduced.

[Brief description of drawings]

1 to 3 show the manufacturing method of the present invention, and FIG. 1 is a schematic side view showing a state in which an adhesive tape is attached to a piece,
FIG. 2 is a sectional side view showing a state in which pieces connected by an adhesive tape are fixed to a surface plate, FIG. 3 is a sectional side view showing a finish processing state, and FIGS. 4 to 6 show a conventional manufacturing method. Fig. 4 is a schematic side view showing how the wire rod is attached to the piece, Fig. 5 is a cross-sectional side view showing a state in which the pieces connected by the wire rod are fixed to the surface plate, and Fig. 6 is finishing work. It is a section side view showing a state. 15: guide rail, 15a: carry-in section, 15b: curved section (curved transfer path), 15c: carry-out section, 16: guide roller, 17: tape roll, 18: adhesive tape, 19: pressure roller, 20: cutter, 21: piece, 22: piece group, 23: surface plate, 24: sander, 25: transfer roller,
(A): A gap.

Claims (1)

[Claims] 1. A large number of rectangular pieces are laid side by side and transferred laterally, and a curved transfer path that curves in a direction orthogonal to the transfer direction is provided in the middle of the transfer direction, and the curved transfer path is reached. Adhesive tape is continuously attached in the lateral direction of each piece on the outer peripheral surface of each piece, and the adhesive tape is extended linearly to form a flat surface on the lower surface of each piece fixed to the adhesive tape. A method for manufacturing a composite plate material, characterized in that it is fixed to a face plate.