TWI412455B - Plywood structure and manufacturing method thereof - Google Patents

Abstract

The present invention provides a plywood structure and a manufacturing method thereof. The plywood structure comprises a laminated structure, which is made of overlapping a plurality of sheets. Each of the sheets has a plurality of holes and the longitudinal section of the laminated structure has a plurality of cavities. Wherein, the lamination structure comprises an upper surface and a lower surface, and from middle of lamination structure to upper surface and lower surface, the diameters of the holes of the sheets are becoming bigger or smaller gradually.

Description

Composite sheet structure and its preparation method

The invention relates to a composite sheet structure and a manufacturing method thereof, in particular to a composite sheet structure with a hole structure made by using recycled materials and a preparation method thereof.

In the prior art, a composite sheet structure mainly composed of a hole structure is used as a main body of a composite sheet structure, and a skin sheet made of a metal material such as aluminum or steel is attached to the honeycomb sheet. Thereby, the combination of the composite sheet structure is completed.

However, such a composite sheet structure is made of a metal material, so that the overall weight is thicker than that of a composite sheet material which is generally made of other materials, and the weight reduction cannot be achieved. Moreover, when a metal raw material is used as a material, the cost thereof is relatively high compared with other raw materials, and thus the production cost is increased.

In addition, in addition to metal materials, iron is also the most commonly used as a material for manufacturing composite sheet structures. Iron sheets are prone to rusting problems when exposed to air for a long time, which in turn destroys the external appearance and thus affects the overall firmness. Other methods are needed to prevent rust, which increases the cost and time of the process. For example, in the surface of the composite sheet structure, a layer of stainless steel is added in a molten manner. This type of manufacturing method not only has many problems, but also relatively increases the manufacturing cost.

In addition, there is also a composite sheet structure made of wood or plastic. The composite sheet structure can not only produce lightweight effects, but the composite sheet structure made of wood may also encounter problems such as moisture and insects. The composite sheet structure is damaged, and the composite sheet structure made of plastic is lighter than the composite sheet made of wood, but it cannot achieve environmental protection for the environment.

In addition to the shortcomings of the materials used in the composite sheet structure described above, in the composite sheet structure currently used, there is also a design in which a hole is provided in the composite sheet structure. However, in the current structure, the size of the holes of each plate and the gap between the holes are the same, resulting in poor toughness and strength of such structures, so that the effects of weight reduction and structural strengthening cannot be better achieved.

Therefore, in terms of demand, providing a lightweight, low-cost, structurally strong and recyclable composite sheet structure has become an urgent issue in market applications.

The technical problem to be solved by the present invention is to provide a composite sheet structure and a preparation method thereof for the above-mentioned defects existing in the prior art, so as to achieve weight reduction, low cost, and recyclability.

In view of the above problems of the prior art, it is a primary object of the present invention to provide a composite sheet structure having a special configuration comprising a laminated structure. The laminated structure is formed by laminating a plurality of sheets, each of which has a plurality of holes, and the laminated structure has a plurality of hollow holes in a longitudinal section. Wherein, the laminated structure has an upper surface layer and a lower surface layer, and the apertures of the holes of the plurality of sheets are gradually larger or smaller from the center of the laminated structure toward the upper surface layer and the lower surface layer.

In an embodiment, the composite sheet structure of the present invention may further comprise at least one clip covering the surface layer, the lower surface layer or a combination thereof above the laminated structure.

Preferably, there may be an I-beam (I BEAM) structure or an X-Struss structure between any adjacent voids. The structure of these voids may be a spherical structure, a honeycomb structure or a quadrilateral structure.

In an embodiment, the shape of the holes in the sheet may include a honeycomb shape, a circular shape, an elliptical shape, a quadrangular shape or an octagon shape.

Preferably, the material of the sheet of the present invention may comprise recyclable paper, plastic, rag, aluminum, steel, fiberglass or a composite thereof.

In another embodiment, the composite sheet structure of the present invention may further comprise a rim clip that is affixed to the edge of the laminate structure.

Further, the present invention further provides a method of manufacturing a composite sheet structure comprising the following steps. First, a plurality of plates are provided. Next, the sheets are subjected to a punching process such that the sheets have a plurality of holes therein. Then, the sheets are glued and positioned and aligned to each other. Finally, the sheets are pressed to obtain a composite sheet structure. Wherein, the composite sheet structure has an upper surface layer and a lower surface layer. In the composite sheet structure, the pores of the holes of the sheet material are gradually smaller or smaller from the center of the composite sheet structure toward the upper surface layer and the lower surface layer. Big.

In one embodiment, the method of fabricating a composite sheet structure of the present invention may further comprise the step of covering a clip over the surface layer, the underlying layer, or a combination thereof.

Preferably, the composite sheet structure has a plurality of hollow holes in a longitudinal section, and any adjacent hollow holes may have an I-beam structure or an X-shaped truss (X Struss). structure. These voids of the composite sheet structure may be a spherical structure, a honeycomb structure or a quadrilateral structure.

In one embodiment, the puncturing process punches the sheets such that they may have honeycomb, circular, elliptical, quadrangular or octagonal holes.

Preferably, the material of the sheet of the present invention may comprise recyclable paper, plastic, rag, aluminum, steel, fiberglass or a composite thereof.

In another embodiment, the method of fabricating a composite sheet structure of the present invention may further comprise the step of consolidating a edged clip to the edge of the composite sheet structure.

In view of the above, the composite sheet structure and method of making the same according to the present invention may have one or more of the following advantages:

(1) The composite sheet structure of the present invention is formed by laminating a plurality of sheets having holes, and has a plurality of hollow holes in a longitudinal section thereof, and an I-beam between any adjacent hollow holes (I) BEAM) structure or X Struss structure, thereby achieving the purpose of strengthening the structural strength of the composite sheet.

(2) The composite sheet structure of the present invention is formed by laminating light and thin sheets having holes, whereby the purpose of weight reduction can be achieved.

(3) The composite sheet structure of the present invention is made of a recyclable raw material, so that it can be recycled and reused, thereby achieving environmental protection.

The embodiments of the composite sheet structure and the method for producing the same according to the present invention will be described below with reference to the related drawings. For the sake of understanding, the same elements in the following embodiments are denoted by the same reference numerals.

Please refer to FIG. 1 , wherein (A) is a schematic view of a first embodiment of a composite sheet structure of the present invention, and FIGS. (B) and (C) are respectively a composite sheet structure of the present invention. A longitudinal sectional view and a partial longitudinal sectional perspective view of an embodiment. As shown in Fig. 1(A), which is a schematic view of one of the sheets 11 of the composite sheet structure 10, the sheet 11 has a plurality of holes 12. In the first (B) of the first drawing, the composite sheet structure 10 of the present invention is formed by laminating a plurality of sheets 11 which have a plurality of hollow holes 13 in a longitudinal section. As can be clearly seen from the figure (C) of Fig. 1, the superposed structure of the composite sheet structure of the present invention and the formation of the voids are formed by using a plurality of sheets 11 having holes of different sizes. Arranged in a predetermined order. In this embodiment, the holes 12 and the holes 13 are all spherical.

Referring to Fig. 2, the drawings (A) and (B) are respectively a cross-sectional view and a longitudinal cross-sectional view of a second embodiment of the composite sheet structure of the present invention. As shown in the figure (A) of Fig. 2, the cross-sectional view of the composite sheet structure 10 has a plurality of holes 12, and it can be seen that the holes of each sheet are gradually reduced from top to bottom. In the figure (B) of Fig. 2, the composite sheet structure 10 of the present invention is formed by laminating a plurality of sheets 11 on each other. The composite sheet structure 10 has a plurality of voids 13 in a longitudinal section. In this embodiment, the holes 12 are honeycomb-like, and the holes 13 are diamond-shaped.

Referring to Figure 3, the drawings (A) and (B) are respectively a cross-sectional view and a longitudinal cross-sectional view of a third embodiment of the composite sheet structure of the present invention. As shown in the figure (A) of Fig. 3, the cross-sectional view of the composite sheet structure 10 has a plurality of holes 12, the holes of which are honeycomb-shaped. As shown in the figure (B) of Fig. 3, this embodiment shows a possible shape state of the void of the composite sheet structure of the present invention. The hollow hole 13 may have a shape of a rhombus, a circle, an octagon or the like, and the adjacent hollow holes may also have a funnel structure, an I BEAM structure or an X Truss structure. The different structures are because the spacing and size of each of the plates are different. Therefore, even if the holes of the plates have the same shape, the shapes of the holes of different shapes can be arranged.

The above are three embodiments of the present invention, but the shapes of the holes and the voids are not limited to the three embodiments. The hole of the composite sheet structure of the present invention may be in the form of a honeycomb, a circle, an ellipse, a quadrangle or an octagon, and the hollow hole may also be a honeycomb, a diamond, a circle, an ellipse, a quadrangle or an eight. Different shapes such as the shape of the edge, the hollow holes may have different structures such as a funnel structure, an I-beam structure or an X-shaped truss structure, and the shapes of the holes and the holes may be differently designed according to different requirements. Holes or voids can also be designed to be irregular in shape if there is a special need. Since various holes or void shapes represent various knockout ratios, and different knockout ratios represent various sheet weights, the composite sheet structure of the present invention can be adapted to the needs of the user and has various Holes and empty hole shapes.

Please refer to FIG. 4, which is an exploded perspective view of the composite sheet structure of the present invention. In the drawings, in order to facilitate the explanation of the hole diameter of each layer of the composite sheet structure of the present invention and the gap size between the holes, the composite sheet structure 10 shown in the figure defines the upper layer A, the middle layer B, the lower layer C, and One plate is drawn on one layer, and each plate is a component symbol 21, 22, 23, respectively. The hole diameter of the plate 21 is smaller than the hole diameter of the plate 22, and the gap between the holes of the plate 21 is larger than the gap between the holes of the plate 22. The sheet 22 taken at the center of the composite sheet structure 10 has a hole diameter which is the largest among all the sheets, and the gap between the holes is the smallest among all the sheets. In this embodiment, it can be shown that the hole diameter from the center toward the surface layer and the lower surface layer of the composite sheet structure is greatly reduced, but not limited thereto, and may be increased from small to large. In addition, although the aperture size of each of the plates in the embodiment is not equal to the size of the gap between the holes, it is not limited thereto, and it is also possible that the hole size of the holes of the plates is equal to the gap between the holes.

The above-mentioned sheets are made of recycled raw materials, and the recovered raw materials can be produced, for example, from wastes containing natural fibers, such as wood chips, straw, reeds, etc., but are not limited to the above, other materials containing natural fibers. Also included in it. Further, the sheet of the present invention is not limited to being made of paper, and may be used as long as it is a recyclable plastic, a rag, an aluminum, a steel, a glass fiber or a synthetic material.

Please refer to FIG. 5, which is a schematic view of a first embodiment of the sheet of the present invention. The sheet as shown may represent the sheet 22 as shown in Fig. 4, because in the embodiment of Fig. 4, the sheet in the middle layer B structure has the largest pores and the smallest pores thereof, so that The plate 22 becomes the densest hole structure. The hole aperture is perforated at a predetermined size, and the gaps between the holes are also spaced apart from each other by a predetermined interval width.

The shape and size of the voids arranged in accordance with the above embodiments may vary depending on the position at which the sections are cut. As shown in Fig. 5, since the holes of the composite sheet structure are arranged differently, the size and shape of the holes of the section D and the section E will not be completely the same.

Please refer to FIG. 6 and FIG. 7 together, which are schematic views of the second embodiment and the third embodiment of the board of the present invention. As shown in Fig. 6, the sheet of the present invention can be formed in the row in the longitudinal direction by a row without holes in the longitudinal direction according to requirements. In the seventh figure, the sheet of the present invention can also be formed in a row in the horizontal direction without a hole. The purpose of the holes in the above two embodiments is to increase the strength and weight of the composite sheet structure. The composite sheet structure of the present invention can be modified by changing the spacing of the holes so that the strength or weight of the composite sheet structure of the present invention can be varied as desired. In addition, the spacing of the holes of the same plate is not limited to the above embodiment. For example, two rows of intersecting non-hole spacing intervals may be simultaneously formed in both the lateral direction and the longitudinal direction.

Further, as shown in Fig. 8, the holes may be gathered in the central portion of the sheet such that the intermediate group of holes has a certain width W from the edge of the sheet. When the holes are arranged in this way, the edges of the composite sheet structure formed by them do not see the void structure. In addition to the above-described arrangement, the width W can be set according to the actual structural strength, and the edge of the hole is not arranged in a regular manner, so it is not limited to the width presented in the drawing.

Please refer to FIG. 9 , which is a schematic view of the composite sheet structure of the present invention. As shown, the edges of the composite sheet structure 10 of the present invention can be covered by a edging block 7 such that the edges of the composite sheet structure 10 can be flat. Different joining elements can be added to the edge clamp to allow a plurality of composite sheet structures to be joined to each other, as detailed in the following examples.

Please refer to FIG. 10, which is a schematic diagram of an embodiment of the edge clamp of the composite sheet structure of the present invention. As shown, in this embodiment, the composite sheet structure of the present invention further comprises edge clamps 70-75 having six different engagement elements. Among them, the edge clamping blocks 70 and 71 can be engaged with each other and can rotate with each other. The edge clamps 72 and 73 can be fixedly fitted to each other. The edge clamps 74 and 75 can be closed parallel to each other.

Please refer to FIG. 11 , which is a schematic diagram of the operation of the edge clamp of the composite sheet structure of the present invention. In this embodiment, the manner in which the edge clamp 70 and the edge clamp 71 are combined and rotated is shown. After the edge clamping block 70 and the edge clamping block 71 are engaged with each other, the engaging elements can be mutually rotated, and the angle can be up to 90 degrees, but not limited thereto, and may exceed 90 degrees.

Please refer to FIG. 12, which is a schematic diagram of the operation of the edge clamp of each composite sheet structure of the present invention after assembly. As shown in the figure, the composite sheet structure to which the edge clamps 70 to 75 are attached may be joined to each other in a predetermined joint manner to form a closed box shape, but not limited thereto. The composite sheet structure of the present invention can be freely combined into various shapes, for example, can be joined to each other to form a "ㄇ" shape.

In addition, the shape of the engaging elements of the edge clamping blocks may not be limited to the above embodiments, and may be other shapes of joining elements. For example, the "L" type joining elements may be joined to the two composite sheet structures.

Please refer to Fig. 13, which is a flow chart of the steps of the method for manufacturing the composite sheet structure of the present invention, which comprises the following steps. In step S11, a plurality of slices are provided. In step S12, the plates are subjected to a punching process, so that the plurality of holes are formed on the plates. In step S13, the sheets are glued and positioned and aligned with each other. In step S14, the sheets are pressed to obtain a composite sheet structure.

In step S11, the sheets are sheets made of recycled raw materials. The recycled raw material may be made of, for example, wood-containing waste, such as wood chips, straw, reed, etc., but is not limited to the above, other natural fiber-containing materials are also included therein, and are not limited to paper, as long as it is Recyclable plastic, shredded fabric, aluminum, steel, fiberglass or synthetic materials can be used.

In step S12, the shapes of the holes include a honeycomb shape, a circular shape, an elliptical shape, a quadrangular shape or an octagonal shape, and are not limited to any one of the shapes, but the pore size is still perforated with a predetermined size, and the holes are interposed. The gaps are still spaced apart from each other by a predetermined interval width.

In the step S13, the composite sheet structure has an upper surface layer and a lower surface layer. In the composite sheet structure, the apertures of the holes of the plurality of sheets are oriented from the center of the composite sheet structure toward the upper surface layer and the lower surface layer. From big to small or from small to small. In addition, after laminating and positioning each other, the laminated composite sheet structure has a plurality of empty holes in the longitudinal section, and the hollow holes are arranged in a predetermined arrangement.

In step S14, it may comprise the step of bonding the clip to the surface layer, the lower surface layer or a combination thereof on the composite sheet structure using at least one clip.

In the composite sheet structure manufacturing method of the present invention, the method further comprises the step of consolidating a edge clamp to the edge of the composite sheet structure, wherein the edge clamp is the same size as the edge clamp described above, and the joint manner is the same. . The detailed drawings described above have been disclosed in the above-described first to twelfth drawings, and therefore will not be described again.

In summary, the composite sheet structure is formed by laminating a plurality of sheets of porous structures, and has a complicated hollow hole structure, thereby achieving the purpose of strengthening the structural strength of the composite sheet. Moreover, the composite sheet structure is made of a light-weight sheet having a hole as its main structure, so that the purpose of weight reduction can be achieved. In addition, the composite sheet structure is made of recycled raw materials, so it can achieve environmentally friendly and recyclable effects.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

10‧‧‧Composite sheet structure

11, 21, 22, 23‧‧‧ plates

12‧‧‧ holes

13‧‧‧empty holes

7, 70~75‧‧‧

A‧‧‧Upper

B‧‧‧ Middle

C‧‧‧Under

D, E‧‧‧ section

W‧‧‧Width

S11~S14‧‧‧Steps

1 is a schematic view (A) of a first embodiment of a composite sheet structure of the present invention, a longitudinal sectional view (B) and a partial longitudinal sectional perspective view of a first embodiment of the composite sheet structure of the present invention (C) ).
Figure 2 is a cross-sectional view (A) and a longitudinal cross-sectional view (B) of a second embodiment of the composite sheet structure of the present invention.
Figure 3 is a cross-sectional view (A) and a longitudinal cross-sectional view (B) of a third embodiment of the composite sheet structure of the present invention.
Figure 4 is an exploded perspective view of the composite sheet structure of the present invention.
Figure 5 is a schematic view of a first embodiment of the sheet of the present invention.
Figure 6 is a schematic view of a second embodiment of the sheet of the present invention.
Figure 7 is a schematic view showing a third embodiment of the sheet of the present invention.
Figure 8 is a schematic view showing a fourth embodiment of the sheet of the present invention.
Figure 9 is a schematic view showing the addition of the edge clamp of the composite sheet structure of the present invention.
Figure 10 is a schematic view showing one embodiment of the edge clamp of the composite sheet structure of the present invention.
Figure 11 is a schematic view showing the operation of the edge clamp of the composite sheet structure of the present invention.
Figure 12 is a schematic view showing the operation of the edge clamp of each composite sheet structure of the present invention after assembly.
Figure 13 is a flow chart showing the steps of the method for manufacturing the composite sheet structure of the present invention.

10‧‧‧Composite sheet structure

11‧‧‧ plates

12‧‧‧ holes

13‧‧‧empty holes

Claims (14)

A composite sheet structure comprising a laminated structure, wherein the laminated structure is formed by laminating a plurality of sheets, each of the sheets having a plurality of holes, and one of the laminated structures has a plurality of hollow holes in a longitudinal section; Wherein, the laminated structure has an upper surface layer and a lower surface layer, and the apertures of the holes of the plurality of sheets are gradually larger or smaller from the center of the laminated structure toward the upper surface layer and the lower surface layer. The composite sheet structure of claim 1, further comprising at least one clip covering the upper surface layer, the lower surface layer or a combination thereof of the laminated structure. The composite sheet structure according to claim 1, wherein an adjacent one of the hollow holes has an I BEAM structure or an X Struss structure. The composite sheet structure according to claim 3, wherein the hollow holes have a spherical structure, a honeycomb structure or a quadrangular structure. The composite sheet structure according to claim 1, wherein the shapes of the holes include a honeycomb shape, a circular shape, an elliptical shape, a quadrangular shape or an octagon shape. The composite sheet structure according to claim 1, wherein the material of the sheets comprises recyclable paper, plastic, broken cloth, aluminum, steel, glass fiber or a composite material thereof. The composite sheet structure of claim 1, further comprising a rim clamp that is affixed to the edge of the laminate structure. A method of manufacturing a composite sheet structure comprising the following steps:
Providing a plurality of plates;
Performing a punching procedure on the sheets to have a plurality of holes on the sheets;
Laminating the sheets, positioning and aligning each other; and pressing the sheets to obtain a composite sheet structure;
The composite sheet structure has an upper surface layer and a lower surface layer. In the composite sheet structure, the apertures of the holes of the plurality of sheets are oriented from the center of the composite sheet structure toward the upper surface layer and the lower surface layer. From big to small or from small to small. The method of manufacturing a composite sheet structure according to claim 8, further comprising the step of covering a surface layer, a lower surface layer or a combination thereof on a composite sheet structure. The method for manufacturing a composite sheet structure according to claim 8, wherein the composite sheet structure has a plurality of hollow holes in a longitudinal section, and an adjacent one of the hollow holes has an I-beam. (I BEAM) structure or an X Struss structure. The method for manufacturing a composite sheet structure according to claim 10, wherein the voids of the composite sheet structure are a spherical structure, a honeycomb structure or a quadrangular structure. The method for manufacturing a composite sheet structure according to claim 8, wherein the punching process punches the sheets such that the sheets have a honeycomb shape, a circular shape, an elliptical shape, a quadrangular shape or an eight sides. Shaped holes. The method for manufacturing a composite sheet structure according to claim 8, wherein the material of the sheets comprises recyclable paper, plastic, crushed cloth, aluminum, steel, glass fiber or a composite material thereof. The method of manufacturing a composite sheet structure according to claim 8, comprising the step of affixing a rim clamp to an edge of the composite sheet structure.