JPS61287701A - Manufacture of laminated board - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to various types of plate bodies such as relatively narrow veneer boards, sawn boards, wood boards, fiber boards, plastic resin boards, ceramic boards, and metal boards. The present invention relates to a method for manufacturing a laminate, in which a long laminate with smooth front and back surfaces is formed.

[Prior Art] The present applicant previously disclosed in Japanese Patent Application No. 60-57452,
After forming a laminated plate material by laminating and bonding a large number of plates having substantially the same length with each other while shifting at least one end by a required interval, the laminated plate material is bonded to each other, with each plate body appearing on the front and back surfaces. A laminate component is formed by dividing and cutting in a direction perpendicular to the thickness at an arbitrary intermediate part in the thickness direction, leaving each end, and then cutting the laminate components together into the parts that appear on the uncut surfaces. A manufacturing method has been proposed in which the ends of each plate are combined and bonded together, and the edges of each plate are stacked and bonded so that they face each other in the middle layer of the laminate to form a laminate.

[Problems to be Solved by the Invention] However, the above-mentioned method for producing a laminate board is such that a board component in which a large number of boards are laminated and bonded is once divided and cut to form a laminate component material, and then these laminated board components are cut into pieces. The plate components were assembled again so that the ends of each plate appearing on the uncut surfaces faced each other, and were laminated and bonded to form a laminate. For this reason, there was a problem in that many manufacturing steps were required and the production efficiency of the laminate deteriorated.

[Object of the Invention] In view of the above-mentioned conventional drawbacks, an object of the present invention is to use a large number of relatively short plates and to form a long laminate efficiently and with a high yield in a small number of steps. An object of the present invention is to provide a method for manufacturing a laminate.

[Means for Solving the Problems] Therefore, the present invention provides a method for laminating and bonding a large number of plates to each other while shifting at least one end by a required interval to form a laminated plate constituent material. Cutting the laminated plate component into at least three parts in a direction substantially perpendicular to the thickness at each position in the thickness direction, leaving the edge of each plate that appears in a step shape on the front and back surfaces of the plate component, A laminate in which the front and back surfaces are planar and many plates are laminated in an inclined manner, and the edges of the plates appear step-like on one side, and the cut surface formed by dividing and cutting on the other side. The method for manufacturing a laminate is constituted by forming divided laminates each appearing in a continuous planar shape.

[Operation of the Invention] According to the present invention, a laminated plate constituent material is formed by laminating and bonding a large number of plates in a predetermined manner in an inclined manner, leaving edge portions of the plates appearing in a step shape on the front and back surfaces thereof. By cutting the front and back sides of the laminate component in the thickness direction into three parts in a direction perpendicular to the thickness, the end of the plate is stepped in one side with the laminate having flat front and back sides. At the same time, it is possible to form a divided laminate material in which the cut surface formed by dividing and cutting appears in a continuous planar shape on the other side. Thereby, it is possible to form a laminate directly from the laminate constituent materials, and the number of manufacturing steps can be reduced to improve production efficiency and yield.

[Example] Hereinafter, an example of the present invention in which a laminate is constructed from a single plate will be described with reference to the drawings.

First, in FIG. 1 showing an outline of a laminate, a laminate 1 is made of a large number of veneers 3 having a relatively short length 13 in the i direction and a thickness t, with each fiber oriented in a substantially horizontal direction. It also has a structure in which it is laminated and bonded in an inclined manner at a required angle with respect to the horizontal direction. On the upper and lower surfaces of the laminate 1, the upper and lower end surfaces 3a and 3b of each veneer 3, which are inclined at the required angle, appear in a horizontally continuous plane.

Next, in FIG. 2 showing a continuous manufacturing method for the laminate 1 having the above configuration, a large number of locking step portions 5a are formed on the conveyance surface of the lamination conveyance device 5 at a required interval 12 in the conveyance direction. Ru. One end 7a (lower end shown in FIG. 2) of the veneer 7, which has been coated with adhesive 8 on at least one side by an adhesive applicator 6, is locked in each locking step 5a, and the laminated As the transport device 5 is driven, each veneer 7 is sequentially transported in the direction of the solid arrow in FIG. 2 while being inclined. This veneer 7 has a length 11 (11>13) in the fiber direction and a thickness t, and each veneer 7 is arranged so that its fibers are oriented in the same direction. Note that the ends 7a and 7b of the veneer 7 are spaced apart from each other by the distance 1.
Since two pieces are stacked one on top of the other, a portion where no adhesive is applied is formed on the upper surface of the end portion 7b of the single plate 7. As a result, each veneer 7 is sequentially stacked while being inclined at a required angle according to the interval 12 and the board thickness t as the veneers 7 are transported by the stacking transport device 5.

A pressing device 9 is disposed downstream of the laminating conveying device 5 in the conveying direction, and the pressing device 9 presses the veneers 7 mutually conveyed as the laminating conveying device 5 is driven, thereby compressing the laminated plate constituent materials. 11 is formed. This pressing device 9 may be either a cold pressing method or a hot pressing method,
Any material may be used as long as the veneers 7 can be bonded to such an extent that the laminated state of the veneers 7 can be maintained during division and cutting, which will be described later. Therefore, veneer 7
The state of mutual adhesion may be either a temporary adhesion state in which the adhesive is uncured and has a certain degree of adhesive strength, or a permanent adhesion state in which the adhesive is hardened.

The above-mentioned laminated plate constituent material 11 appears in the shape of a step, with the end portions 7a and 7b of each veneer 7 being shifted in the horizontal direction by a required interval of 12 on the front and back surfaces thereof.

Said f? Two cutting devices 13 and 15 such as a cutting case, a circular saw, a band saw, a laser, and a vibration cutting device are arranged at the lower end of the single-layer conveying device in the conveying direction, and these cutting devices 13 and 15
is the laminate plate component 1 transported by the laminate transport device 5
1, each veneer 7 at the upper and lower parts in the thickness direction.
The laminated plate 1 to be formed is cut into three parts in a direction substantially perpendicular to the thickness T at each position corresponding to the thickness T of the laminated plate 1, leaving the ends 7a and 7b. As a result, from the laminate component 11, the laminate 1 whose front and back surfaces are flat, and the end portions 7a and 7b of the veneer 7 on one side appear in a step shape with a required interval 12, and on the other side, At the same time, a pair of split laminated materials 17 and 19 are formed in which the cut end surfaces of the deck 7 cut at the above-mentioned inclination angle appear in a continuous planar shape. After the adhesive of the laminate 1 is cured by heat pressing or the like as necessary, the laminate 1 is cut to a required length in the horizontal direction.

In addition, the divided laminated materials 17 and 19 are obtained by, for example, inverting the other divided laminated material 19 so that the ends 7a and 7b of each veneer 7 are opposed to one divided laminated material 17, and each divided laminated material 17 and 1
A bonded laminated board (not shown) is formed by laminating and bonding so that the ends 7a and 7b appearing on one side of the board 9 are engaged with each other. Then, the bonded laminate formed by dividing the divided laminated material 17 and one inverted superimposition is processed by a heat pressing device or the like.
・19 After mutual adhesion, the length in the horizontal direction is cut to a specified length. In addition, the laminate 1 is cut into 3 parts.
After forming the V4 laminate component 11, the laminate component 11 was cut to a required length and then cut into three parts to form the laminate 1. Of course, it may be a method. In addition, the laminate component material 11
A bonded laminate was formed from the divided laminated materials 17 and 19 formed by cutting the divided laminated materials 17 and 19 into three parts, and the divided laminated materials 17 and 19 were constructed into an 8!1 layered board as shown in Japanese Patent Application No. 60-57453. Of course, the material or the material dated May 24, 1985 may be used as a decorative board as shown in the patent application.

In this way, in this embodiment, it is possible to directly form the laminate 1 by cutting the laminate component 11 into three parts, and the manufacturing process is simpler than the laminate manufacturing method shown in Japanese Patent Application No. 60-57452. The number of processes is small, and it is possible to improve the production efficiency of the laminate 1, and under certain conditions, it is possible to produce an extremely long laminate 1.
can be formed continuously.

In the above explanation, it is assumed that the laminate 1 is formed by cutting the laminate component 11 into three parts, in which a large number of relatively narrow veneers 7 are laminated and bonded together in the required relationship.
Changes can be made as follows.

As shown in FIG. 3, one divided laminated material 17 formed by cutting into three parts is attached to the upper surface of a laminated board component 11 in which a large number of veneers 7 are laminated and bonded in the required relationship. The end portion 7b of the veneer 7 appearing on the upper surface of the plate component 11 and the end portion 7a appearing on the uncut surface of the divided laminated material 17 are laminated and bonded, for example, in a state where they are engaged with each other, so that the upper surface shown in the figure is flat. After forming a laminate plate component 31 whose lower surface appears in a step shape with each end 7a spaced at a required interval 12, this laminate plate component 31 is 3-shaped in the relationship shown in this embodiment.
A method may also be used in which the two laminated plates 1 and 1' and one divided laminated material 17 are simultaneously formed by dividing and cutting.

As shown in FIG. 4, the two laminated plate components 11 are
An intermediate plate 41 having fibers in a direction orthogonal to the fibers of the veneer 7 constituting the laminate component 11 is interposed between the illustrated upper end 7b and the illustrated lower end 7a. Laminated board component 4 in which middle plates 41 are arranged in the middle part by laminating and bonding
3, this laminated board component material 43 is cut into three parts according to the relationship shown in this embodiment to simultaneously form a laminated board 45 with intermediate plates 41 arranged in the middle part and divided laminated materials 17 and 19. It may be a method of doing so. The laminate 45 obtained by this method has a middle plate 41 having fibers arranged in the middle part in a direction perpendicular to the fibers of the veneer 7, so the laminate 45 has high plate strength and has less distortion. . Further, the thickness T' of the laminated plate 45 can be adjusted as appropriate by the intermediate plate 41. The intermediate plate 41 between the laminate members 11 may be a monolithic intermediate plate or a patent application filed by the applicant dated June 10, 1985, according to the required relationship shown in the patent application "Laminated Board". There may also be a number of intervening divided intermediate plates. Also,
The laminate component 43 shown in FIG. 4 is composed of a laminate component 11 having fibers in the horizontal direction and an intermediate plate 41 having fibers in a direction perpendicular to the laminate component 11. 1 with material 11 and middle plate 41! Of course, the fiber directions may be reversed, or the fibers of the veneers may be combined in any direction.

As shown in FIGS. 5 and 6, the laminate component 11 is
The two cutting devices 51 and 53 cut into pieces with the ends 7a and 7b remaining, and the cutting device 55 disposed appropriately in the middle of these cutting devices @51 and 53 cut the pieces into four pieces. Laminated plates 57 and 59 and two divided laminated materials 61 and 6
3 may be formed simultaneously. in this case,
The laminates 57 and 59 may be used directly as products, and the divided laminates 61 and 63 may be laminated and bonded in the above-described relationship to form a bonded laminate. Joining 8 where the laminated materials 61 and 63 are laminated and bonded! ! Layer plate 65
is used as a middle plate, and its upper and lower surfaces are aligned perpendicularly to the fibers of the bonded laminate 65! A laminated plate 57 in which fibers are arranged.
59 may be laminated and adhesively bonded to form a laminate board 67 having a substantially 3-bly plywood structure.

As shown in FIG. 7, the plates constituting the laminate component 71 are formed by a group of veneers 73 consisting of veneers 75a and 75b having different thicknesses and lengths and whose fibers are substantially orthogonal to each other. A veneer group 73 in which at least one end (lower end in the figure) 73a of the board group 73 appears in a step shape at a required interval.
The structure is cut into three parts in a direction substantially perpendicular to the thickness at each position in the thickness direction leaving end parts 73a and 73b, so that the front and back surfaces are flat and the fibers of the veneers 75a and 75b are alternately orthogonal. A laminate 79 consisting of a laminate 79, and a laminate 79 on one side of which the end portions 75a and 75b of each veneer group 75 are stepped, and on the other side each veneer 7 formed by the above-mentioned divisional cutting and whose fibers are orthogonal to each other.
A method of forming inclined laminated materials 81a and 81b in which the cut surfaces of 5a and 75b appear continuously and planar may also be used. In this case, the veneers 75a and 75 have different fiber directions.
Since the laminates b are adjacent to each other, it is possible to obtain a laminate plate 79 with stable plate strength.

In the manufacturing method shown in this embodiment and FIGS. 3 to 7, the laminate components 11, 31, and 43 are cut into multiple pieces at once to form the laminates 1, 1", 145, 157, and 59 at the same time. However, the above fI 4-layer plate constituent materials 11, 31, and 43
For example, after cutting the bottom side shown in each figure into parts using a cutting device, the top side shown in the figures is further cut into parts to essentially cut the laminate constituent material into a plurality of parts to produce a laminate 1.1.
45, 57, and 59 may be used.

In this example, the laminated plate components were continuously formed by the manufacturing method shown in FIG.
No. 2, Japanese Patent Application No. 60-57453 or May 2, 1985 is the manufacturing method shown in Patent Application R11!11000 Manufacturing Method.

In the above explanation, veneer 7 was used as the board, but sawn board,
It may be a wood board, a gypsum board, a fiber board, a plastic resin board, a ceramic board, a metal board, or a composite structure thereof.

[Effects of the Invention] Therefore, the present invention provides a method for manufacturing a laminate that uses a large number of relatively short plates and can form a long laminate efficiently and with a high yield in a small number of steps. Is possible.

[Brief explanation of drawings]

FIG. 1 is a perspective view schematically showing a laminate, FIG. 2 is an explanatory view showing a continuous method of manufacturing the laminate, and FIGS. 3 to 7 are explanatory views showing modified embodiments. In the figure, 1 is a laminate, 7 is a veneer forming the plate, 7a and 7b
11 is a laminate plate constituent material, 17 and 19 are divided laminate materials, and 12 is an interval. Patent applicant Meinan Seisakusho Co., Ltd. Agent Patent attorney Ken Ito - Procedural amendment (voluntary) June 20, 1985 1. Indication of the case. -/J// Patent application 2 filed on June 17, 1985, Name of invention Method for manufacturing laminates 3, Relationship with the person making the amendment Case Patent applicant address Kajita-cho, Obu City, Aichi Prefecture 3-chome 130 name
Meinan Seisakusho Co., Ltd. Representative Katsuji Hase 4, Agent 457 Address 2-19-17-5 Hirako, Minami-ku, Nagoya Date of amendment order Voluntary 6 Detailed description of the invention subject to amendment, drawings A simple explanation column for 7. Contents of the amendment (1), written in Mei II, page 12, line 6, [the plates are...different] has been replaced with [the plates have different thicknesses and lengths]. are equal to "-". (2) Add the following items between the 4th and 5th lines of page 13 of Akirall5. In addition, as shown in FIG. 8, unlike the case shown in FIG. The veneer 83 has fibers in the direction orthogonal to the veneer 83, has substantially the same thickness as the veneer 83, and has an interval 12 shorter than the length of the veneer 83 in the fiber direction. The other end 83 of 83
After forming the laminate component 81 by alternately laminating and bonding the veneers '85 in which the other end 85b (the upper end shown in FIG. 8) coincides with the other end 85b (upper end shown in FIG. 8), The eighth
It is also possible to carry out a method in which one laminate plate 89 and two inclined laminate members 91 and 93 are simultaneously formed by cutting into three parts at the division cutting positions shown in the figure. In this case, the interval between the veneer 85 and the veneer 83 is 12 minutes shorter,
One end 85a of the veneer 85 (
Since only one end 83a of the veneer 83 is scoured without the lower end shown in FIG. I can do it. Therefore, compared to the method shown in FIG. 7, the adhesive application work when forming the laminate plate component 81 can be simplified, and the manufacturing efficiency of the laminate plate 89 can be improved. Although veneers 75a and 75b with different thicknesses are shown in FIG. 7, and veneers 83 and 85 with the same thickness are shown in FIG. 8, the embodiment method shown in FIGS. 7 and 8 is not limited to the difference in plate thickness. (3), "Figure 7" written on page 14, line 12 of the specification is amended to "Figure 8." (4) Add Figure 8 of the 0 drawing as per the attached revised drawing.

Claims (1)

[Claims] (1) After laminating and adhering a large number of plates to each other while shifting at least one end by a required interval to form a laminate component, the laminate component is formed into a stepped shape on its front and back surfaces. The laminated plate constituent material is cut into at least three parts in a direction substantially perpendicular to the thickness at each position in the thickness direction, leaving the end of each plate appearing in Forming a laminate plate laminated in an inclined manner and a split laminate material in which the end portion of the plate body appears in a step shape on one side, and the cut surface formed by dividing and cutting appears in a continuous planar shape on the other side. A method for manufacturing a laminate, characterized by: