Multilayer solid wood plywood

Abstract

The multi-layer solid wood plywood is manufactured through the following steps that a plurality of dry plates and rubber plates are alternately placed, the fiber directions of every two adjacent dry plates are perpendicular to each other, the multi-layer solid wood plywood is formed through pressing at the high temperature of 125-135 DEG C and the high pressure of 5-20 MPa, and the multi-layer solid wood plywood is formed through a multiple-time forming process and multiple-time sanding and polishing. Compared with the prior art, the dry plate has the beneficial effects that the dry plate is formed through pressing at the high temperature of 125-135 DEG C and the high pressure of 5-20 MPa, the pressing is performed by adopting a multi-time forming process and multi-time sanding and polishing, and the tensile strength and the stability of the dry plate are improved; the dry plates and the rubber plates are alternately placed, and the fiber directions of every two adjacent layers of dry plates are mutually perpendicular, so that the phenomenon of buckling deformation of the plate surfaces can be effectively prevented, and the overall strength is improved while the flatness of the plate surfaces is ensured; small-diameter wood is adopted, so that the production cost is reduced, and the waste of raw materials is reduced; the flatness and strength of the board can be improved, and the added value of the product is increased.

Description

Technical Field

[0001] The invention relates to the technical field of board manufacturing, in particular to a multi-layer solid wood plywood. Background Art

[0002] Multilayer solid wood plywood is one of the commonly used materials for furniture and one of the three major wood-based panels. In addition to being used in furniture making, it can also be used for aircraft, ships, construction and many other purposes. At present, the multilayer solid wood plywood on the market is generally made of single boards stacked and pressed in a criss-cross pattern. Due to the stress difference between the layers, it is easy to warp and deform. Moreover, most of them are made of large-diameter wood or whole logs, which is costly and wastes resources seriously.

[0003] The Chinese utility model patent with publication number CN205394748U discloses a multi-layer solid wood-based biomass synthetic resin plywood, which is composed of 3 to 15 single board layers, the single board layer material is a single solid wood layer, the material of the single solid wood layer is any one of eucalyptus, poplar, pine, camphor, fir, and kauri; the surface of the single solid wood layer is a sanded surface, and the outer side of the single solid wood layer is an adhesive layer, and the adhesive layer is a biomass-based synthetic resin. However, it has the problems of insufficient tensile strength, stability, and flatness, and high production cost. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the background technology and provide a multi-layer solid wood plywood.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a multi-layer solid wood plywood is made by the following steps: a plurality of dry boards and glue boards are placed alternately, and the fiber directions of each two adjacent layers of dry boards are arranged perpendicular to each other, and they are pressed together at a high temperature of 125-135°C and a high pressure of 5-20MPa, and the pressing adopts multiple molding processes and multiple sanding and polishing.

[0006] As a further improvement of the present invention: the moisture content of the dry plate is controlled at 25%.

[0007] As a further improvement of the present invention: the dry plate is formed by infinitely connecting 2N 1.26m×1.26m×0.0022m square dry plates with left and right teeth, and the rubber plate is formed by infinitely connecting 3N 0.96m×1.26m×0.0022m long rubber plates with middle connecting lines, and N is a positive integer.

[0008] As a further improvement of the present invention: the square dry board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting, and the long rubber board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing and cutting.

[0009] As a further improvement of the present invention: the number of dry plates is 5, the number of rubber plates is 4, and both the topmost surface and the bottommost surface are dry plates.

[0010] As a further improvement of the present invention: the number of dry boards is 3, the number of glue boards is 4, and edge dry boards formed by infinitely connecting N 1.26m×2.52m×0.0022m long dry boards are arranged on the top glue board and under the bottom glue board, horizontal-grained technological wood is arranged above the upper edge dry board and below the lower edge dry board, and vertical-grained technological wood is arranged above the upper horizontal-grained technological wood and below the lower horizontal-grained technological wood.

[0011] As a further improvement of the present invention: the long trunk board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting.

[0012] As a further improvement of the present invention: the horizontal grain technical wood is a 70-thread stock material.

[0013] As a further improvement of the present invention: the vertical grain technical wood is a common material with 35-45 silk threads.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The present invention is formed by pressing at a high temperature of 125-135°C and a high pressure of 5-20MPa, and the pressing adopts multiple molding processes and multiple sanding and polishing to improve the tensile strength and stability of the dry plate;

[0016] (2) The present invention places dry sheets and rubber sheets alternately, and arranges the fiber directions of two adjacent layers of dry sheets perpendicular to each other, which can effectively prevent the board surface from warping and deformation, ensure the flatness of the board surface, and also improve the overall strength;

[0017] (3) The present invention uses small-diameter wood, which reduces production costs and reduces the waste of raw materials;

[0018] (4) Multiple sanding processes can improve the flatness and strength of the board surface and increase the added value of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of embodiment 1 of the present invention.

[0020] Figure 2 It is a structural diagram of embodiment 2 of the present invention.

[0021] Figure 3 It is a structural diagram of a square plate.

[0022] Figure 4 It is a structural diagram of a long rubber plate.

[0023] Figure 5 It is a structural diagram of a long trunk board. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0026] In the description of the embodiments of the present invention, if a feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected to the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present invention, if "several" is involved, it means more than one, if "multiple" is involved, it means more than two, if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself, and if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0028] The preferred embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0029] Example 1

[0030] like Figure 1As shown, this embodiment provides a multi-layer solid wood plywood, which is made by the following steps: a plurality of dry boards 100 and glue boards 200 are placed alternately, and the fiber directions of each two adjacent layers of dry boards are arranged perpendicular to each other, and they are pressed together at a high temperature of 125-135°C and a high pressure of 5-20MPa, and the pressing adopts multiple molding processes and multiple sanding and polishing.

[0031] As a preferred implementation of this embodiment, the moisture content of the dry plate is controlled at 25%.

[0032] As a preferred implementation of this embodiment, the dry plate is formed by 2N 1.26m×1.26m×0.0022m square dry plates 101 infinitely connected by left and right tooth joints, and the rubber plate is formed by 3N 0.96m×1.26m×0.0022m long rubber plates 201 infinitely connected by connecting lines, and N is a positive integer.

[0033] As a preferred implementation of this embodiment, the square dry board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting, and the long rubber board is made of small-diameter wood 300 of 0.96m×0.48m×0.0022m through center splicing and cutting.

[0034] As a preferred implementation of this embodiment, the number of dry plates is 5, the number of rubber plates is 4, and the topmost surface and the bottommost surface are both dry plates.

[0035] Example 2

[0036] like Figure 2 As shown, this embodiment provides a multi-layer solid wood plywood, which is made by the following steps: a plurality of dry boards 100 and glue boards 200 are placed alternately, and the fiber directions of each two adjacent layers of dry boards are arranged perpendicular to each other, and they are pressed together at a high temperature of 125-135°C and a high pressure of 5-20MPa, and the pressing adopts multiple molding processes and multiple sanding and polishing.

[0037] As a preferred implementation of this embodiment, the moisture content of the dry plate is controlled at 25%.

[0038] As a preferred implementation of this embodiment, the dry plate is formed by 2N 1.26m×1.26m×0.0022m square dry plates 101 infinitely connected by left and right tooth joints, and the rubber plate is formed by 3N 0.96m×1.26m×0.0022m long rubber plates 201 infinitely connected by connecting lines, and N is a positive integer.

[0039] As a preferred implementation of this embodiment, the square dry board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting, and the long rubber board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing and cutting.

[0040] As a preferred implementation scheme of this embodiment, the number of dry boards is 3, the number of glue boards is 4, and edge dry boards 400 formed by N 1.26m×2.52m×0.0022m long dry boards 401 infinitely connected by tooth joints are arranged on the top glue board and under the bottom glue board, horizontal grain technology wood 500 is arranged above the upper edge dry board and below the lower edge dry board, and vertical grain technology wood 600 is arranged above the upper horizontal grain technology wood and below the lower horizontal grain technology wood.

[0041] As a preferred implementation of this embodiment, the long trunk board is made of small-diameter wood 300 of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting.

[0042] As a preferred implementation of this embodiment, the horizontal grain technological wood is 70-thread stock material.

[0043] As a preferred implementation of this embodiment, the vertical grain technological wood is a stock material with 35-45 threads.

[0044] When the present invention is implemented, the material price (96-48) of the building template is used to integrate resources to replace the market material of 1.27×0.63. Existing market materials: 1.27x0.63 wood is 1100 yuan / square meter, for example: 1100 / square meter÷1.27÷0.63÷0.0017=1.56 yuan / piece.

[0045] 1.56x4x10=62.4 / yuan (10 layers). The cost of adding another layer with an opening of 0.0022 is 68.64 yuan for 11 layers (raw material department). The process is modified according to the material of 0.96X0.48, using 9 layers, 1÷096÷0.48÷0.0022 (calculated according to the thickness of 2.2, the actual thickness is 0.0020)=986 pieces.

[0046] Factory price and loss: 900 square ÷ 986 pieces x 7 (each layer is 1.27 × 2.5) x 9 = 57.5 yuan. A common gear machine is required to prepare the materials.

[0047] Average consumables per layer: 1.27x0.63x4=3.202 2 →4 normal boards are used.

[0048] 0.96x048x7=3.222 2 →7 special-shaped plates are used.

[0049] Use a gear jointer to connect it into 1.27mX1.27m, and use a center joint to connect it into 1.27mx0.96m. The infinite connection ensures the position of the connection port is misaligned, and the plate arrangement line is used to achieve the principle of odd-numbered symmetry with one layer of dry board and one layer of plastic board.

[0050] The existing multi-layer solid wood plywood has 3, 5, 7, 9, and 11 layers, with a conventional 0.17 veneer thickness and an additional 0.22 thickening, for example:

[0051] 9 cm: 4 layers 1.7, 1 layer 2.2;

[0052] 12cm: 6 layers 1.7, 1 layer 2.2;

[0053] 15cm: 7 layers 1.7, 2 layers 2.2.

[0054] According to the regular market price: 1.7mm / single board, 1150 yuan / square, 2.2mm / single board, 1200 yuan / square.

[0055] Existing example: 12 cm: one layer of 1.7 uses 4 sheets = 6.25 yuan x 6 = 37.5 yuan, one layer of 2.2 uses four sheets = 8.45 yuan, the glue layer remains unchanged (slightly more material is used), a total of 45.95 yuan.

[0056] Materials used in the process of the present invention: 96x0.8, plus 820 yuan / square (0.22)

[0057] Example of the present invention: 12 sides, five layers, 820 yuan / square ÷ 986 pieces x 7 x 5 layers, a total of 29 yuan, and then add a set of horizontal grain 70 technology wood = 7.7 yuan, the cost is 29 + 7.7 = 36.7 yuan. Compared with the existing example, the cost is reduced by nearly 10 yuan / sheet, which is the profit point.

[0058] Advantages: 1. Reduced costs and increased profits;

[0059] 2. Make full use of small-diameter wood;

[0060] 3. The most important thing is to choose quality: the so-called pasting means that the board glue is processed and then added with the panel (technical wood, aluminum wood, etc.) to ensure flatness, no dry flowers, and no carbonization. Make full use of the advantages of board glue (as mentioned above), increase the large area of ​​edge pressing, ensure quality without any worries, and maximize its benefits.

[0061] When the present invention is implemented, the number of layers of dry plates and rubber plates can be increased or decreased according to use requirements.

[0062] The technical features of the above-described embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The above-described embodiments only express several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the present invention, several variations and improvements can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A multi-layer solid wood plywood, characterized in that: It is made by the following steps: multiple dry boards and plastic boards are placed alternately, and the fiber directions of each two adjacent layers of dry boards are arranged perpendicular to each other. They are pressed together at a high temperature of 125-135°C and a high pressure of 5-20MPa. The pressing process adopts multiple molding processes and multiple sanding and polishing.

2. A multi-layer solid wood plywood according to claim 1, characterized in that: The moisture content of the dry board was controlled at 25%.

3. A multi-layer solid wood plywood according to claim 2, characterized in that: The dry plate is formed by infinitely connecting 2N 1.26m×1.26m×0.0022m square dry plates with left and right teeth, and the rubber plate is formed by infinitely connecting 3N 0.96m×1.26m×0.0022m long rubber plates with middle connecting lines, and N is a positive integer.

4. A multi-layer solid wood plywood according to claim 3, characterized in that: The square dry board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting. The long rubber board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing and cutting.

5. A multi-layer solid wood plywood according to claim 4, characterized in that: The number of dry boards is 5, the number of plastic boards is 4, and both the top and bottom surfaces are dry boards.

6. A multi-layer solid wood plywood according to claim 4, characterized in that: The number of dry boards is 3, and the number of glue boards is 4. The uppermost glue board and the lowermost glue board are both provided with edge dry boards which are infinitely connected by teeth of N 1.26m×2.52m×0.0022m long dry boards. Horizontal-grained technological wood is arranged above the upper edge dry board and below the lower edge dry board. Vertical-grained technological wood is arranged above the upper horizontal-grained technological wood and below the lower horizontal-grained technological wood.

7. A multi-layer solid wood plywood according to claim 6, characterized in that: The long trunk board is made of small-diameter wood of 0.96m×0.48m×0.0022m through center splicing, tooth jointing and cutting.

8. The multi-layer solid wood plywood according to claim 6, characterized in that: Horizontal grain technology wood is a 70-silk stock material.

9. The multi-layer solid wood plywood according to claim 6, characterized in that: Vertical grain technical wood is a common material with 35-45 silk threads.

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