WO2021093272A1 - Prestressed high-strength plywood and manufacturing method thereof - Google Patents

Prestressed high-strength plywood and manufacturing method thereof Download PDF

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Publication number
WO2021093272A1
WO2021093272A1 PCT/CN2020/086072 CN2020086072W WO2021093272A1 WO 2021093272 A1 WO2021093272 A1 WO 2021093272A1 CN 2020086072 W CN2020086072 W CN 2020086072W WO 2021093272 A1 WO2021093272 A1 WO 2021093272A1
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Prior art keywords
fiber layer
panel
fiber
paste
frame
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PCT/CN2020/086072
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French (fr)
Chinese (zh)
Inventor
许天祥
阳勇
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太仓优上展示器具有限公司
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Publication of WO2021093272A1 publication Critical patent/WO2021093272A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27D—WORKING VENEER OR PLYWOOD
    • B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
    • B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
    • B27D1/08—Manufacture of shaped articles; Presses specially designed therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/04—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B21/042—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board comprising wood as the main or only constituent of a layer, which is next to another layer of the same or of a different material of wood
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B21/00—Layered products comprising a layer of wood, e.g. wood board, veneer, wood particle board
    • B32B21/10—Next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
    • B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/245—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it being a foam layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2266/00—Composition of foam
    • B32B2266/02—Organic
    • B32B2266/0214—Materials belonging to B32B27/00
    • B32B2266/0278—Polyurethane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/54—Yield strength; Tensile strength
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/718—Weight, e.g. weight per square meter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable

Definitions

  • the invention belongs to the technical field of display props, and specifically relates to a prestressed high-strength plywood and a manufacturing method thereof, and is particularly but not limited to being applied to unmanned shelves and display racks.
  • Display racks and sales shelves have a wide range of applications in daily life, and are often used in exhibitions, commercial sales and other links.
  • the display racks and sales shelves are mostly made by splicing plates, and the plates used can be medium density fiberboard and metal plate.
  • the cost of medium-density fiberboard is relatively low, its strength is low and its own weight is relatively large. It is not suitable for high-end display racks, nor is it suitable for weighing large shelves and display racks.
  • the metal plate can achieve very high strength, its own weight is very large, and the use cost is very high.
  • plates containing metal components have natural shortcomings. The metal components contained in the unmanned cash register will interfere with the signal of the radio frequency identification system (FRID). Therefore, the development of a low-cost, lightweight, high-strength metal-free sheet material has important practical significance and broad application prospects.
  • FRID radio frequency identification system
  • the present invention provides a prestressed high-strength plywood and a manufacturing method thereof.
  • the present invention provides a pre-stressed high-strength plywood, which includes a frame, a filling layer, a first fiber layer, a second fiber layer, a first panel and a second panel.
  • the first fiber layer and the second fiber layer are respectively pasted on the frame.
  • the first panel is pasted on the first fiber layer
  • the second panel is pasted on the second fiber layer.
  • the filling layer is hard styrofoam. The hard styrofoam fills the frame, the first fiber layer and the first fiber layer. Inside the cavity formed by the three fiber layers.
  • the filling layer is made of hard styrofoam material, which can withstand high tensile force after hardening, and also has strong bonding performance; the first fiber layer and the second fiber layer on both sides can withstand strong tensile force; The outermost first and second panels can also withstand a certain pulling force, and at the same time also have a beautifying and decorative effect. It can be seen that the pre-stressed high-strength plywood provided by the present invention has a reasonable design, overcomes many shortcomings in the prior art, has the characteristics of light weight, high strength, and does not contain metal components, and has broad application prospects.
  • the first fiber layer and the second fiber layer are both alkali-free glass fiber cloths in a longitudinally tensioned state.
  • the alkali-free glass fiber cloth is light in weight and high in strength. When it is stretched longitudinally and then pasted, it can naturally have the stress distribution of the internal pressure-bearing surface when the sheet is formed, thereby improving the bending resistance of the sheet.
  • the above-mentioned prestressed high-strength plywood also includes edge bands, which are pasted around the frame body, and the edges of the edge bands are respectively flush with the exposed surfaces of the first panel and the second panel. Pasting the edge banding strip can improve the moisture-proof performance, and at the same time make the overall appearance of the board more beautiful.
  • the first panel and the second panel are the same panel, which is composed of four layers of a back panel, a tensile fiber mesh, a core panel and an outer panel in order from the inside to the outside.
  • the tensile fiber mesh can enhance the tensile ability of the first panel and the second panel, and the multi-layer wood board with different grain directions can further enhance the overall structural strength of the first panel and the second panel, and is more beautiful.
  • the tensile fiber mesh is a glass fiber mesh cloth in a longitudinally tensioned state.
  • the tensile fiber web is longitudinally tensioned to generate a certain stress, which can improve the bending resistance of the prestressed high-strength plywood.
  • the thickness of the back panel, the core panel and the outer panel are all 1mm; the length of the first panel and the second panel are both 1790mm, and the width is 418.5mm.
  • the filling layer includes the following components by weight:
  • Component A 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
  • Component B 0.8-1.3 parts of isocyanate.
  • Filled with the styrofoam has good bonding performance and high strength.
  • the manufacturing method of the above-mentioned prestressed high-strength plywood includes the following steps:
  • S1 panel manufacturing Paste the backplane, tensile fiber mesh, core plate and outer panel together in order at one time. When pasting, the tensile fiber mesh is longitudinally tensioned by the stretching device;
  • S2 Paste the fiber layer Paste the first fiber layer on the first panel, and paste the second fiber layer on the second panel. When pasting, the first fiber layer and the second fiber layer are longitudinally tensioned by the stretching device;
  • S4 Filling hard styrofoam drill at least one hole on the side of the frame, and fill the hard styrofoam into the cavity formed by the frame, the first fiber layer and the second fiber layer through the drilled hole , Fill the entire cavity, after the hard styrofoam is dried and solidified, remove the stretching device used to tension the tensile fiber web, the first fiber layer and the second fiber layer, trim and remove the burrs to obtain a semi-finished product;
  • step S5 Paste edge banding around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
  • the rigid styrofoam filled in step S4 can effectively bear pressure after being fully cured, and is fully bonded to the first fiber layer and the second fiber layer, and then removed for tension resistance.
  • the stretching device of the fiber web, the first fiber layer and the second fiber layer realizes the stress distribution state of the internal pressure-bearing surface of the prestressed high-strength plywood under longitudinal tension.
  • the adhesives used for pasting in steps S1, S2, S3 and S5 are all melamine resin adhesives.
  • the prestressed high-strength plywood of the present invention has reasonable design, light weight, high strength, does not contain metal components, is cheap and beautiful, and has a wide range of application prospects;
  • the manufacturing method of the stress high-strength plywood has simple operation and controllable cost, and is suitable for large-scale industrial production.
  • Figures 1 and 3 are schematic diagrams of the structure of the prestressed high-strength plywood according to the present invention.
  • FIG. 2 is a schematic diagram of the structure of the first panel and the second panel of the prestressed high-strength plywood according to the present invention.
  • a prestressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber
  • the layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4.
  • the first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned alkali-free glass fiber cloth (200g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside.
  • the tensile fiber web 12 is a longitudinally tensioned glass fiber mesh cloth (120 g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the manufacturing method of the prestressed high-strength plywood includes the following steps:
  • the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time.
  • the tensile fiber mesh 12 is longitudinally tensioned by the stretching device.
  • the tensile force is 1000N/m;
  • S2 Paste fiber layer Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 800N/m;
  • the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
  • a pre-stressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber
  • the layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4.
  • the pre-stressed high-strength plywood also includes edge bands 7 which are pasted around the frame body 1 and whose edges are flush with the exposed surfaces of the first panel 5 and the second panel 6 respectively.
  • the frame 1 is made of LVL laminated veneer lumber.
  • the first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned non-alkali glass fiber cloth (300g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside.
  • the backboard 11 is a 1mm thick longitudinally textured eucalyptus wood
  • the core 13 is a 1mm thick transversely textured eucalyptus wood
  • the outer panel 14 is a 1mm thick longitudinally textured poplar wood
  • the tensile fiber mesh 12 is longitudinally tensioned glass.
  • Fiber mesh cloth 110g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the thickness of the back plate 11, the core plate 13 and the outer plate 14 are all 1 mm; the length of the first panel 5 and the second panel 6 are both 1790 mm, and the width are both 418.5 mm.
  • the selected filling layer 2 includes the following components by weight:
  • Component A 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
  • Component B 0.8-1.3 parts of isocyanate.
  • the manufacturing method of the prestressed high-strength plywood includes the following steps:
  • the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time.
  • the tensile fiber mesh 12 is longitudinally tensioned by the stretching device.
  • the pulling force is 2000N/m;
  • S2 Paste fiber layer Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 2000N/m;
  • step S5 Paste the edge banding strip 7 around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
  • the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
  • a pre-stressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber
  • the layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4.
  • the pre-stressed high-strength plywood also includes edge bands 7 which are pasted around the frame body 1 and whose edges are flush with the exposed surfaces of the first panel 5 and the second panel 6 respectively.
  • the frame 1 is made of LVL laminated veneer lumber.
  • the first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned alkali-free glass fiber cloth (600g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside.
  • the backboard 11 is a 1mm thick longitudinally textured eucalyptus wood
  • the core 13 is a 1mm thick transversely textured eucalyptus wood
  • the outer panel 14 is a 1mm thick longitudinally textured poplar wood
  • the tensile fiber mesh 12 is longitudinally tensioned glass.
  • Fiber mesh cloth (90g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
  • the thickness of the back plate 11, the core plate 13 and the outer plate 14 are all 1 mm; the length of the first panel 5 and the second panel 6 are both 1790 mm, and the width are both 418.5 mm.
  • the selected filling layer 2 includes the following components by weight:
  • Component A 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
  • Component B 0.8-1.3 parts of isocyanate.
  • the manufacturing method of the prestressed high-strength plywood includes the following steps:
  • the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time.
  • the tensile fiber mesh 12 is longitudinally tensioned by the stretching device.
  • the tensile force is 3000N/m;
  • S2 Paste fiber layer Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 2000N/m;
  • step S5 Paste the edge banding strip 7 around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
  • the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
  • the finished product specifications of the prestressed high-strength plywood are: length 1790mm, width 418.5mm, thickness 25mm, and weight 6.8kg.
  • the load-bearing test of the pre-stressed high-strength plywood of this specification is carried out. Specifically, the pre-stressed high-strength plywood is placed horizontally. The force area is less than 200mm ⁇ 200mm. After standing for 2 hours, the measured amount of deformation at the midpoint is 5.6mm. After the weight is removed, the deformation is completely restored. In the same way, increase the weight of the weight to 300kg and let it stand for 24h. The measured deformation at the midpoint is 13.6mm. After removing the weight, let it stand for 3min. The measured deformation at the midpoint is 0.3. mm.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Veneer Processing And Manufacture Of Plywood (AREA)

Abstract

The present invention pertains to the technical field of display frames. Disclosed are a prestressed high-strength plywood and a manufacturing method thereof. The prestressed high-strength plywood comprises a frame, a filler layer, a first fiber layer, a second fiber layer, a first panel, and a second panel. The first fiber layer and the second fiber layer are respectively adhered to two sides of the frame. The first panel is adhered to the first fiber layer. The second panel is adhered to the second fiber layer. The filler layer is a rigid foam adhesive. A cavity formed by the frame, the first fiber layer, and the second fiber layer is filled with the rigid foam adhesive. The prestressed high-strength plywood has reasonable design, light weight, and high strength, contains no metal component, and is low-cost, aesthetically pleasing, and widely applicable. The method for manufacturing the prestressed high-strength plywood in the present invention is simple, controllable in costs, and applicable to large-scale industrial production.

Description

一种预应力高强度胶合板及其制造方法Prestressed high-strength plywood and manufacturing method thereof 技术领域Technical field
本发明属于展示道具技术领域，具体涉及一种预应力高强度胶合板及其制造方法，特别但是不限于应用于无人售货架与展示架。The invention belongs to the technical field of display props, and specifically relates to a prestressed high-strength plywood and a manufacturing method thereof, and is particularly but not limited to being applied to unmanned shelves and display racks.
背景技术Background technique
展示架和售货架在日常生活中有着广泛的应用，常用于展览展示、商业销售等环节。展示架和售货架大多通过板材拼接制成，所用的板材可以是中密度纤维板和金属板等。其中，中密度纤维板虽然成本较低，但是强度偏低且自重较大，不适于高端展示架，也不适于称重较大的货架和展示架。金属板虽然可以达到非常高的强度，但自重非常大，并且使用成本很高。此外，在面向未来的无人售货架领域，含有金属成分的板材有着天然的不足，所含的金属成分在无人收银过程中会对射频识别系统(FRID)的信号产生干扰。因此，开发一种不含金属的轻质高强度的廉价板材具有重要的现实意义和广泛的应用前景。Display racks and sales shelves have a wide range of applications in daily life, and are often used in exhibitions, commercial sales and other links. The display racks and sales shelves are mostly made by splicing plates, and the plates used can be medium density fiberboard and metal plate. Among them, although the cost of medium-density fiberboard is relatively low, its strength is low and its own weight is relatively large. It is not suitable for high-end display racks, nor is it suitable for weighing large shelves and display racks. Although the metal plate can achieve very high strength, its own weight is very large, and the use cost is very high. In addition, in the field of unmanned sales shelves facing the future, plates containing metal components have natural shortcomings. The metal components contained in the unmanned cash register will interfere with the signal of the radio frequency identification system (FRID). Therefore, the development of a low-cost, lightweight, high-strength metal-free sheet material has important practical significance and broad application prospects.
发明内容Summary of the invention
针对现有技术存在的不足，本发明提供一种预应力高强度胶合板及其制造方法。Aiming at the deficiencies in the prior art, the present invention provides a prestressed high-strength plywood and a manufacturing method thereof.
本发明提供的一种预应力高强度胶合板，包括框体、填充层、第一纤维层、第二纤维层、第一面板和第二面板，第一纤维层和第二纤维层分别粘贴于框体两侧，第一面板粘贴于第一纤维层上，第二面板粘贴于第二纤维层上，填充层为硬质发泡胶，硬质发泡胶充满框体、第一纤维层和第二纤维层三者构成的空腔内。其中，填充层采用硬质发泡胶材料，硬化后能够承受很高的拉力，同时还具有很强的粘结性能；两侧的第一纤维层和第二纤维层可以承受很强的拉力；最外侧的第一面板和第二面板也能够承受一定的拉力，同时还兼具美化装饰作用。可见，本发明提供的预应力高强度胶合板，设计合理，克服了现有技术中存在的诸多不足，具有重量轻，强度大，不含金属成分等特点，具有广泛的应用前景。The present invention provides a pre-stressed high-strength plywood, which includes a frame, a filling layer, a first fiber layer, a second fiber layer, a first panel and a second panel. The first fiber layer and the second fiber layer are respectively pasted on the frame. On both sides of the body, the first panel is pasted on the first fiber layer, and the second panel is pasted on the second fiber layer. The filling layer is hard styrofoam. The hard styrofoam fills the frame, the first fiber layer and the first fiber layer. Inside the cavity formed by the three fiber layers. Among them, the filling layer is made of hard styrofoam material, which can withstand high tensile force after hardening, and also has strong bonding performance; the first fiber layer and the second fiber layer on both sides can withstand strong tensile force; The outermost first and second panels can also withstand a certain pulling force, and at the same time also have a beautifying and decorative effect. It can be seen that the pre-stressed high-strength plywood provided by the present invention has a reasonable design, overcomes many shortcomings in the prior art, has the characteristics of light weight, high strength, and does not contain metal components, and has broad application prospects.
进一步地，上述的预应力高强度胶合板，第一纤维层和第二纤维层均为处于纵向张紧状态的无碱玻璃纤维布。无碱玻璃纤维布重量轻强度高，将其纵向张紧后再粘贴，可以使板材成形时就天然具有内部承压表面受拉的应力分布，从而提升板材的抗弯曲能力。Further, in the above-mentioned prestressed high-strength plywood, the first fiber layer and the second fiber layer are both alkali-free glass fiber cloths in a longitudinally tensioned state. The alkali-free glass fiber cloth is light in weight and high in strength. When it is stretched longitudinally and then pasted, it can naturally have the stress distribution of the internal pressure-bearing surface when the sheet is formed, thereby improving the bending resistance of the sheet.
进一步地，上述的预应力高强度胶合板，还包括封边条，封边条粘贴于框体的四周，并且封边条的边缘分别与第一面板和第二面板的外露面齐平。粘贴封边条可提升防潮性能，同时使该板材整体更加美观。Further, the above-mentioned prestressed high-strength plywood also includes edge bands, which are pasted around the frame body, and the edges of the edge bands are respectively flush with the exposed surfaces of the first panel and the second panel. Pasting the edge banding strip can improve the moisture-proof performance, and at the same time make the overall appearance of the board more beautiful.
进一步地，上述的预应力高强度胶合板，第一面板和第二面板为相同的面板，从内 向外依次由背板、抗拉纤维网、芯板和外板四层粘贴组成。抗拉纤维网可增强第一面板和第二面板的抗拉能力，贴合不同纹理方向的多层木板可进一步增强第一面板和第二面板的整体结构强度，并且更加美观。Further, in the above-mentioned prestressed high-strength plywood, the first panel and the second panel are the same panel, which is composed of four layers of a back panel, a tensile fiber mesh, a core panel and an outer panel in order from the inside to the outside. The tensile fiber mesh can enhance the tensile ability of the first panel and the second panel, and the multi-layer wood board with different grain directions can further enhance the overall structural strength of the first panel and the second panel, and is more beautiful.
进一步地，上述的预应力高强度胶合板，抗拉纤维网为处于纵向张紧状态的玻璃纤维网格布。将抗拉纤维网纵向张紧，使其产生一定的应力，可提升该预应力高强度胶合板的抗弯曲能力。Further, in the above-mentioned prestressed high-strength plywood, the tensile fiber mesh is a glass fiber mesh cloth in a longitudinally tensioned state. The tensile fiber web is longitudinally tensioned to generate a certain stress, which can improve the bending resistance of the prestressed high-strength plywood.
优选地，上述的预应力高强度胶合板，背板、芯板和外板的厚度均为1mm；第一面板和第二面板的长度均为1790mm，宽度均为418.5mm。Preferably, for the above-mentioned prestressed high-strength plywood, the thickness of the back panel, the core panel and the outer panel are all 1mm; the length of the first panel and the second panel are both 1790mm, and the width is 418.5mm.
优选地，上述的预应力高强度胶合板，填充层按重量计包括以下组分：Preferably, in the above-mentioned prestressed high-strength plywood, the filling layer includes the following components by weight:
A组分：聚醚多元醇0.8-1.2份、硅油0.1-0.5份、二乙醇胺0.2-4.5份、乙二醇2-8份、水0.2-3份、环戊烷5-20份；Component A: 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
B组分：异氰酸酯0.8-1.3份。Component B: 0.8-1.3 parts of isocyanate.
填充该发泡胶，粘结性能好，强度大。Filled with the styrofoam has good bonding performance and high strength.
进一步地，上述的预应力高强度胶合板的制造方法，包括以下步骤：Further, the manufacturing method of the above-mentioned prestressed high-strength plywood includes the following steps:
S1面板的制造：按顺序将背板、抗拉纤维网、芯板和外板一次性粘贴在一起，粘贴时，抗拉纤维网由拉伸装置纵向张紧；S1 panel manufacturing: Paste the backplane, tensile fiber mesh, core plate and outer panel together in order at one time. When pasting, the tensile fiber mesh is longitudinally tensioned by the stretching device;
S2粘贴纤维层：将第一纤维层粘贴于第一面板上，将第二纤维层粘贴于第二面板上，粘贴时，第一纤维层和第二纤维层由拉伸装置纵向张紧；S2 Paste the fiber layer: Paste the first fiber layer on the first panel, and paste the second fiber layer on the second panel. When pasting, the first fiber layer and the second fiber layer are longitudinally tensioned by the stretching device;
S3粘贴框体：将步骤S2中得到的粘贴有第一面板的第一纤维层粘贴在框体的一面，同时，将步骤S2中得到的粘贴有第二面板的第二纤维层粘贴在框体的另一面；S3 Paste the frame: Paste the first fiber layer with the first panel obtained in step S2 on one side of the frame, and at the same time, paste the second fiber layer with the second panel obtained in step S2 on the frame The other side of
S4填充硬质发泡胶：在框体的侧面钻至少一个孔，将硬质发泡胶通过钻出的孔填充到框体、第一纤维层和第二纤维层三者构成的空腔内，填满整个空腔，待硬质发泡胶干燥固化后，撤去用于张紧抗拉纤维网、第一纤维层和第二纤维层的拉伸装置，修除毛边，得半成品；S4 Filling hard styrofoam: drill at least one hole on the side of the frame, and fill the hard styrofoam into the cavity formed by the frame, the first fiber layer and the second fiber layer through the drilled hole , Fill the entire cavity, after the hard styrofoam is dried and solidified, remove the stretching device used to tension the tensile fiber web, the first fiber layer and the second fiber layer, trim and remove the burrs to obtain a semi-finished product;
S5：在步骤S4所得的半成品的四周粘贴封边条，得预应力高强度胶合板。S5: Paste edge banding around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
以上步骤操作简单，生产高效，其中，步骤S4填充的硬质发泡胶充分固化以后可以有效承压，并且与第一纤维层和第二纤维层均充分粘结，然后撤去用于张紧抗拉纤维网、第一纤维层和第二纤维层的拉伸装置，从而实现了该预应力高强度胶合板内部承压表面纵向受拉的应力分布状态。The above steps are simple to operate and efficient in production. Among them, the rigid styrofoam filled in step S4 can effectively bear pressure after being fully cured, and is fully bonded to the first fiber layer and the second fiber layer, and then removed for tension resistance. The stretching device of the fiber web, the first fiber layer and the second fiber layer realizes the stress distribution state of the internal pressure-bearing surface of the prestressed high-strength plywood under longitudinal tension.
优选地，上述的预应力高强度胶合板的制造方法，步骤S1、S2、S3和S5中粘贴使 用的胶均为三聚氰胺树脂胶黏剂。Preferably, in the above-mentioned method for manufacturing a prestressed high-strength plywood, the adhesives used for pasting in steps S1, S2, S3 and S5 are all melamine resin adhesives.
有益效果：与现有技术相比，本发明所述的预应力高强度胶合板，设计合理，重量轻，强度大，不含金属成分，廉价美观，具有广泛的应用前景；本发明所述的预应力高强度胶合板的制造方法，操作简单，成本可控，适于大规模工业化生产。Beneficial effects: Compared with the prior art, the prestressed high-strength plywood of the present invention has reasonable design, light weight, high strength, does not contain metal components, is cheap and beautiful, and has a wide range of application prospects; The manufacturing method of the stress high-strength plywood has simple operation and controllable cost, and is suitable for large-scale industrial production.
附图说明Description of the drawings
图1和图3为本发明所述的预应力高强度胶合板的结构示意图。Figures 1 and 3 are schematic diagrams of the structure of the prestressed high-strength plywood according to the present invention.
图2为本发明所述的预应力高强度胶合板的第一面板和第二面板的结构示意图。2 is a schematic diagram of the structure of the first panel and the second panel of the prestressed high-strength plywood according to the present invention.
图中，1框体、2填充层、3第一纤维层、4第二纤维层、5第一面板、6第二面板、7封边条、11背板、12抗拉纤维网、13芯板和14外板。In the figure, 1 frame, 2 filling layer, 3 first fiber layer, 4 second fiber layer, 5 first panel, 6 second panel, 7 edge banding, 11 back panel, 12 tensile fiber mesh, 13 core Board and 14 outer boards.
具体实施方式Detailed ways
结合附图和具体实施例，进一步阐述本发明。The present invention will be further explained with reference to the drawings and specific embodiments.
实施例1Example 1
如图1和2所示，一种预应力高强度胶合板，包括框体1、填充层2、第一纤维层3、第二纤维层4、第一面板5和第二面板6，第一纤维层3和第二纤维层4分别粘贴于框体1两侧，第一面板5粘贴于第一纤维层3上，第二面板6粘贴于第二纤维层4上，填充层2为硬质发泡胶，硬质发泡胶充满框体1、第一纤维层3和第二纤维层4三者构成的空腔内。As shown in Figures 1 and 2, a prestressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber The layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4.
其中，第一纤维层3和第二纤维层4均为纵向张紧的无碱玻璃纤维布(200g/m 2，泰州市中盛玻纤制品有限公司)。第一面板5和第二面板6为选用相同的面板，从内向外依次由背板11、抗拉纤维网12、芯板13和外板14四层粘贴组成。抗拉纤维网12为纵向张紧的玻璃纤维网格布(120g/m 2，泰州市中盛玻纤制品有限公司)。 Among them, the first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned alkali-free glass fiber cloth (200g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.). The first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside. The tensile fiber web 12 is a longitudinally tensioned glass fiber mesh cloth (120 g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
该预应力高强度胶合板的制造方法，包括以下步骤：The manufacturing method of the prestressed high-strength plywood includes the following steps:
S1面板的制造：按顺序将背板11、抗拉纤维网12、芯板13和外板14一次性粘贴在一起，粘贴时，抗拉纤维网12由拉伸装置纵向张紧，张紧的拉力为1000N/m；S1 panel manufacturing: the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time. When pasting, the tensile fiber mesh 12 is longitudinally tensioned by the stretching device. The tensile force is 1000N/m;
S2粘贴纤维层：将第一纤维层3粘贴于第一面板5上，将第二纤维层4粘贴于第二面板6上，粘贴时，第一纤维层3和第二纤维层4由拉伸装置纵向张紧，张紧的拉力为800N/m；S2 Paste fiber layer: Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 800N/m;
S3粘贴框体：将步骤S2中得到的粘贴有第一面板5的第一纤维层3粘贴在框体1的一面，同时，将步骤S2中得到的粘贴有第二面板6的第二纤维层4粘贴在框体1的另一面；S3 Paste the frame: Paste the first fiber layer 3 with the first panel 5 obtained in step S2 on one side of the frame 1, and at the same time, paste the second fiber layer with the second panel 6 obtained in step S2 4 Paste on the other side of frame 1;
S4填充硬质发泡胶：在框体1的侧面钻一个孔，将硬质发泡胶通过钻出的孔填充到框体1、第一纤维层3和第二纤维层4三者构成的空腔内，填满整个空腔，待硬质发泡胶干燥固化后，撤去用于张紧抗拉纤维网12、第一纤维层3和第二纤维层4的拉伸装置，修除毛边， 预应力高强度胶合板。S4 Filling hard styrofoam: drill a hole on the side of the frame 1, and fill the hard styrofoam into the frame 1, the first fiber layer 3 and the second fiber layer 4 through the drilled hole. In the cavity, fill the entire cavity. After the hard styrofoam is dried and solidified, remove the stretching device used to tension the tensile fiber web 12, the first fiber layer 3 and the second fiber layer 4, and trim and remove the burrs. , Prestressed high-strength plywood.
其中，步骤S1、S2、S3和S5中粘贴使用的胶均为三聚氰胺树脂胶黏剂。Among them, the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
实施例2Example 2
如图2和3所示，一种预应力高强度胶合板，包括框体1、填充层2、第一纤维层3、第二纤维层4、第一面板5和第二面板6，第一纤维层3和第二纤维层4分别粘贴于框体1两侧，第一面板5粘贴于第一纤维层3上，第二面板6粘贴于第二纤维层4上，填充层2为硬质发泡胶，硬质发泡胶充满框体1、第一纤维层3和第二纤维层4三者构成的空腔内。并且该预应力高强度胶合板还包括封边条7，封边条7粘贴于框体1的四周，其边缘分别与第一面板5和第二面板6的外露面齐平。As shown in Figures 2 and 3, a pre-stressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber The layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4. In addition, the pre-stressed high-strength plywood also includes edge bands 7 which are pasted around the frame body 1 and whose edges are flush with the exposed surfaces of the first panel 5 and the second panel 6 respectively.
其中，框体1由LVL单板层积材制成。第一纤维层3和第二纤维层4均为纵向张紧的无碱玻璃纤维布(300g/m 2，泰州市中盛玻纤制品有限公司)。第一面板5和第二面板6为选用相同的面板，从内向外依次由背板11、抗拉纤维网12、芯板13和外板14四层粘贴组成。背板11为1mm厚的纵向纹理的桉木板，芯板13为1mm厚的横向纹理的桉木板，外板14为1mm厚的纵向纹理的杨木板，抗拉纤维网12为纵向张紧的玻璃纤维网格布(110g/m 2，泰州市中盛玻纤制品有限公司)。 Among them, the frame 1 is made of LVL laminated veneer lumber. The first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned non-alkali glass fiber cloth (300g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.). The first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside. The backboard 11 is a 1mm thick longitudinally textured eucalyptus wood, the core 13 is a 1mm thick transversely textured eucalyptus wood, the outer panel 14 is a 1mm thick longitudinally textured poplar wood, and the tensile fiber mesh 12 is longitudinally tensioned glass. Fiber mesh cloth (110g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
并且，背板11、芯板13和外板14的厚度均为1mm；第一面板5和第二面板6的长度均为1790mm，宽度均为418.5mm。In addition, the thickness of the back plate 11, the core plate 13 and the outer plate 14 are all 1 mm; the length of the first panel 5 and the second panel 6 are both 1790 mm, and the width are both 418.5 mm.
选用的填充层2按重量计包括以下组分：The selected filling layer 2 includes the following components by weight:
A组分：聚醚多元醇0.8-1.2份、硅油0.1-0.5份、二乙醇胺0.2-4.5份、乙二醇2-8份、水0.2-3份、环戊烷5-20份；Component A: 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
B组分：异氰酸酯0.8-1.3份。Component B: 0.8-1.3 parts of isocyanate.
该预应力高强度胶合板的制造方法，包括以下步骤：The manufacturing method of the prestressed high-strength plywood includes the following steps:
S1面板的制造：按顺序将背板11、抗拉纤维网12、芯板13和外板14一次性粘贴在一起，粘贴时，抗拉纤维网12由拉伸装置纵向张紧，张紧的拉力为2000N/m；S1 panel manufacturing: the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time. When pasting, the tensile fiber mesh 12 is longitudinally tensioned by the stretching device. The pulling force is 2000N/m;
S2粘贴纤维层：将第一纤维层3粘贴于第一面板5上，将第二纤维层4粘贴于第二面板6上，粘贴时，第一纤维层3和第二纤维层4由拉伸装置纵向张紧，张紧的拉力为2000N/m；S2 Paste fiber layer: Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 2000N/m;
S3粘贴框体：将步骤S2中得到的粘贴有第一面板5的第一纤维层3粘贴在框体1的一面，同时，将步骤S2中得到的粘贴有第二面板6的第二纤维层4粘贴在框体1的另一面；S3 Paste the frame: Paste the first fiber layer 3 with the first panel 5 obtained in step S2 on one side of the frame 1, and at the same time, paste the second fiber layer with the second panel 6 obtained in step S2 4 Paste on the other side of frame 1;
S4填充硬质发泡胶：在框体1的侧面钻一个孔，将硬质发泡胶通过钻出的孔填充到框体1、第一纤维层3和第二纤维层4三者构成的空腔内，填满整个空腔，待硬质发泡胶干燥固化 后，撤去用于张紧抗拉纤维网12、第一纤维层3和第二纤维层4的拉伸装置，修除毛边，得半成品；S4 Filling hard styrofoam: drill a hole on the side of the frame 1, and fill the hard styrofoam into the frame 1, the first fiber layer 3 and the second fiber layer 4 through the drilled hole. In the cavity, fill the entire cavity. After the hard styrofoam is dried and solidified, remove the stretching device used to tension the tensile fiber web 12, the first fiber layer 3 and the second fiber layer 4, and trim and remove the burrs. , A semi-finished product;
S5：在步骤S4所得的半成品的四周粘贴封边条7，得预应力高强度胶合板。S5: Paste the edge banding strip 7 around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
其中，步骤S1、S2、S3和S5中粘贴使用的胶均为三聚氰胺树脂胶黏剂。Among them, the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
实施例3Example 3
如图2和3所示，一种预应力高强度胶合板，包括框体1、填充层2、第一纤维层3、第二纤维层4、第一面板5和第二面板6，第一纤维层3和第二纤维层4分别粘贴于框体1两侧，第一面板5粘贴于第一纤维层3上，第二面板6粘贴于第二纤维层4上，填充层2为硬质发泡胶，硬质发泡胶充满框体1、第一纤维层3和第二纤维层4三者构成的空腔内。并且该预应力高强度胶合板还包括封边条7，封边条7粘贴于框体1的四周，其边缘分别与第一面板5和第二面板6的外露面齐平。As shown in Figures 2 and 3, a pre-stressed high-strength plywood includes a frame body 1, a filling layer 2, a first fiber layer 3, a second fiber layer 4, a first panel 5 and a second panel 6, and the first fiber The layer 3 and the second fiber layer 4 are respectively pasted on both sides of the frame 1, the first panel 5 is pasted on the first fiber layer 3, the second panel 6 is pasted on the second fiber layer 4, and the filling layer 2 is hard hair Foam, hard foam fills the cavity formed by the frame body 1, the first fiber layer 3 and the second fiber layer 4. In addition, the pre-stressed high-strength plywood also includes edge bands 7 which are pasted around the frame body 1 and whose edges are flush with the exposed surfaces of the first panel 5 and the second panel 6 respectively.
其中，框体1由LVL单板层积材制成。第一纤维层3和第二纤维层4均为纵向张紧的无碱玻璃纤维布(600g/m 2，泰州市中盛玻纤制品有限公司)。第一面板5和第二面板6为选用相同的面板，从内向外依次由背板11、抗拉纤维网12、芯板13和外板14四层粘贴组成。背板11为1mm厚的纵向纹理的桉木板，芯板13为1mm厚的横向纹理的桉木板，外板14为1mm厚的纵向纹理的杨木板，抗拉纤维网12为纵向张紧的玻璃纤维网格布(90g/m 2，泰州市中盛玻纤制品有限公司)。 Among them, the frame 1 is made of LVL laminated veneer lumber. The first fiber layer 3 and the second fiber layer 4 are both longitudinally tensioned alkali-free glass fiber cloth (600g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.). The first panel 5 and the second panel 6 are the same panels, which are composed of four layers of a back panel 11, a tensile fiber mesh 12, a core panel 13, and an outer panel 14 in order from the inside to the outside. The backboard 11 is a 1mm thick longitudinally textured eucalyptus wood, the core 13 is a 1mm thick transversely textured eucalyptus wood, the outer panel 14 is a 1mm thick longitudinally textured poplar wood, and the tensile fiber mesh 12 is longitudinally tensioned glass. Fiber mesh cloth (90g/m 2 , Taizhou Zhongsheng Fiberglass Products Co., Ltd.).
并且，背板11、芯板13和外板14的厚度均为1mm；第一面板5和第二面板6的长度均为1790mm，宽度均为418.5mm。In addition, the thickness of the back plate 11, the core plate 13 and the outer plate 14 are all 1 mm; the length of the first panel 5 and the second panel 6 are both 1790 mm, and the width are both 418.5 mm.
选用的填充层2按重量计包括以下组分：The selected filling layer 2 includes the following components by weight:
A组分：聚醚多元醇0.8-1.2份、硅油0.1-0.5份、二乙醇胺0.2-4.5份、乙二醇2-8份、水0.2-3份、环戊烷5-20份；Component A: 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
B组分：异氰酸酯0.8-1.3份。Component B: 0.8-1.3 parts of isocyanate.
该预应力高强度胶合板的制造方法，包括以下步骤：The manufacturing method of the prestressed high-strength plywood includes the following steps:
S1面板的制造：按顺序将背板11、抗拉纤维网12、芯板13和外板14一次性粘贴在一起，粘贴时，抗拉纤维网12由拉伸装置纵向张紧，张紧的拉力为3000N/m；S1 panel manufacturing: the backplane 11, the tensile fiber mesh 12, the core plate 13, and the outer panel 14 are pasted together in order at one time. When pasting, the tensile fiber mesh 12 is longitudinally tensioned by the stretching device. The tensile force is 3000N/m;
S2粘贴纤维层：将第一纤维层3粘贴于第一面板5上，将第二纤维层4粘贴于第二面板6上，粘贴时，第一纤维层3和第二纤维层4由拉伸装置纵向张紧，张紧的拉力为2000N/m；S2 Paste fiber layer: Paste the first fiber layer 3 on the first panel 5, and paste the second fiber layer 4 on the second panel 6. When pasting, the first fiber layer 3 and the second fiber layer 4 are stretched The device is tensioned longitudinally, and the tension of the tension is 2000N/m;
S3粘贴框体：将步骤S2中得到的粘贴有第一面板5的第一纤维层3粘贴在框体1的一面，同时，将步骤S2中得到的粘贴有第二面板6的第二纤维层4粘贴在框体1的另一面；S3 Paste the frame: Paste the first fiber layer 3 with the first panel 5 obtained in step S2 on one side of the frame 1, and at the same time, paste the second fiber layer with the second panel 6 obtained in step S2 4 Paste on the other side of frame 1;
S4填充硬质发泡胶：在框体1的侧面钻两个孔，将硬质发泡胶通过钻出的一个孔填充到框体1、第一纤维层3和第二纤维层4三者构成的空腔内，另一个孔用于排气，将硬质发泡胶填满整个空腔，待硬质发泡胶干燥固化后，撤去用于张紧抗拉纤维网12、第一纤维层3和第二纤维层4的拉伸装置，修除毛边，得半成品；S4 Filling hard styrofoam: drill two holes on the side of the frame 1, fill the hard styrofoam into the frame 1, the first fiber layer 3 and the second fiber layer 4 through the drilled hole In the formed cavity, another hole is used for exhausting air, and the hard styrofoam is filled in the entire cavity. After the hard styrofoam is dried and solidified, the tension-resistant fiber web 12 and the first fiber are removed. The stretching device of the layer 3 and the second fiber layer 4 trims and removes the burrs to obtain semi-finished products;
S5：在步骤S4所得的半成品的四周粘贴封边条7，得预应力高强度胶合板。S5: Paste the edge banding strip 7 around the semi-finished product obtained in step S4 to obtain a pre-stressed high-strength plywood.
其中，步骤S1、S2、S3和S5中粘贴使用的胶均为三聚氰胺树脂胶黏剂。Among them, the adhesives used for pasting in steps S1, S2, S3, and S5 are all melamine resin adhesives.
该预应力高强度胶合板成品的规格为：长1790mm，宽418.5mm，厚25mm，重量6.8kg。对该规格的预应力高强度胶合板进行承重测试，具体为将该预应力高强度胶合板水平放置，对其长度方向的两端垫高使其他部位悬空，在中点处放置100kg的重物，受力面积小于200mm×200mm，静置2h后测得中点处的形变量为5.6mm，移除该重物后，形变完全恢复。按照同样的方法，将重物的重量增加至300kg，静置24h，测得中点处的形变量为13.6mm，移除该重物后静置3min，测得中点处的形变量为0.3mm。The finished product specifications of the prestressed high-strength plywood are: length 1790mm, width 418.5mm, thickness 25mm, and weight 6.8kg. The load-bearing test of the pre-stressed high-strength plywood of this specification is carried out. Specifically, the pre-stressed high-strength plywood is placed horizontally. The force area is less than 200mm×200mm. After standing for 2 hours, the measured amount of deformation at the midpoint is 5.6mm. After the weight is removed, the deformation is completely restored. In the same way, increase the weight of the weight to 300kg and let it stand for 24h. The measured deformation at the midpoint is 13.6mm. After removing the weight, let it stand for 3min. The measured deformation at the midpoint is 0.3. mm.
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进，这些改进也应视为本发明的保护范围。The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the present invention. The scope of protection of the invention.

Claims (9)

  1. 一种预应力高强度胶合板，其特征在于：包括框体(1)、填充层(2)、第一纤维层(3)、第二纤维层(4)、第一面板(5)和第二面板(6)，所述第一纤维层(3)和所述第二纤维层(4)分别粘贴于所述框体(1)两侧，所述第一面板(5)粘贴于所述第一纤维层(3)上，所述第二面板(6)粘贴于所述第二纤维层(4)上，所述填充层(2)为硬质发泡胶，所述硬质发泡胶充满所述框体(1)、第一纤维层(3)和第二纤维层(4)三者构成的空腔内。A prestressed high-strength plywood, which is characterized in that it comprises a frame (1), a filling layer (2), a first fiber layer (3), a second fiber layer (4), a first panel (5) and a second Panel (6), the first fiber layer (3) and the second fiber layer (4) are respectively pasted on both sides of the frame (1), and the first panel (5) is pasted on the first On a fiber layer (3), the second panel (6) is pasted on the second fiber layer (4), and the filling layer (2) is made of hard styrofoam, the hard styrofoam It fills the cavity formed by the frame body (1), the first fiber layer (3) and the second fiber layer (4).
  2. 根据权利要求1所述的预应力高强度胶合板，其特征在于：所述第一纤维层(3)和所述第二纤维层(4)均为处于纵向张紧状态的无碱玻璃纤维布。The prestressed high-strength plywood according to claim 1, characterized in that: the first fiber layer (3) and the second fiber layer (4) are both alkali-free glass fiber cloths in a longitudinally tensioned state.
  3. 根据权利要求1所述的预应力高强度胶合板，其特征在于：还包括封边条(7)，所述封边条(7)粘贴于所述框体(1)的四周，并且所述封边条(7)的边缘分别与所述第一面板(5)和所述第二面板(6)的外露面齐平。The prestressed high-strength plywood according to claim 1, characterized in that it further comprises an edge band (7), the edge band (7) is pasted around the frame (1), and the seal The edges of the side strips (7) are respectively flush with the exposed surfaces of the first panel (5) and the second panel (6).
  4. 根据权利要求3所述的预应力高强度胶合板，其特征在于：所述第一面板(5)和所述第二面板(6)为相同的面板，从内向外依次由背板(11)、抗拉纤维网(12)、芯板(13)和外板(14)四层粘贴组成。The pre-stressed high-strength plywood according to claim 3, characterized in that: the first panel (5) and the second panel (6) are the same panel, from the inside to the outside in turn from the back plate (11), The tensile fiber mesh (12), the core board (13) and the outer board (14) are pasted in four layers.
  5. 根据权利要求4所述的预应力高强度胶合板，其特征在于：所述抗拉纤维网(12)为处于纵向张紧状态的玻璃纤维网格布。The prestressed high-strength plywood according to claim 4, characterized in that the tensile fiber mesh (12) is a glass fiber mesh cloth in a longitudinally tensioned state.
  6. 根据权利要求4所述的预应力高强度胶合板，其特征在于：所述背板(11)、芯板(13)和外板(14)的厚度均为1mm；第一面板(5)和所述第二面板(6)的长度均为1790mm，宽度均为418.5mm。The pre-stressed high-strength plywood according to claim 4, characterized in that: the thickness of the back plate (11), the core plate (13) and the outer plate (14) are all 1 mm; The length of the second panel (6) is 1790mm, and the width is 418.5mm.
  7. 根据权利要求4至6任一项所述的预应力高强度胶合板，其特征在于：所述填充层(2)按重量计包括以下组分：The prestressed high-strength plywood according to any one of claims 4 to 6, wherein the filling layer (2) comprises the following components by weight:
    A组分：聚醚多元醇0.8-1.2份、硅油0.1-0.5份、二乙醇胺0.2-4.5份、乙二醇2-8份、水0.2-3份、环戊烷5-20份；Component A: 0.8-1.2 parts of polyether polyol, 0.1-0.5 parts of silicone oil, 0.2-4.5 parts of diethanolamine, 2-8 parts of ethylene glycol, 0.2-3 parts of water, 5-20 parts of cyclopentane;
    B组分：异氰酸酯0.8-1.3份。Component B: 0.8-1.3 parts of isocyanate.
  8. 根据权利要求7所述的预应力高强度胶合板的制造方法，其特征在于：包括以下步骤：The manufacturing method of prestressed high-strength plywood according to claim 7, characterized in that it comprises the following steps:
    S1面板的制造：按顺序将所述背板(11)、所述抗拉纤维网(12)、所述芯板(13)和所述外板(14)一次性粘贴在一起，粘贴时，所述抗拉纤维网(12)由拉伸装置纵向张紧；S1 panel manufacturing: paste the back panel (11), the tensile fiber mesh (12), the core panel (13) and the outer panel (14) together in order, and when pasting, The tensile fiber web (12) is longitudinally tensioned by a stretching device;
    S2粘贴纤维层：将所述第一纤维层(3)粘贴于所述第一面板(5)上，将所述第二纤维层(4)粘贴于所述第二面板(6)上，粘贴时，所述第一纤维层(3)和所述第二纤维层(4)由拉伸装置纵向张紧；S2 Paste fiber layer: Paste the first fiber layer (3) on the first panel (5), paste the second fiber layer (4) on the second panel (6), and paste When the first fiber layer (3) and the second fiber layer (4) are longitudinally tensioned by a stretching device;
    S3粘贴框体：将步骤S2中得到的粘贴有所述第一面板(5)的所述第一纤维层(3)粘贴在所述框体(1)的一面，同时，将步骤S2中得到的粘贴有所述第二面板(6)的所述第二纤维层(4)粘贴在所述框体(1)的另一面；S3 Paste the frame body: Paste the first fiber layer (3) on which the first panel (5) is pasted obtained in step S2 on one side of the frame body (1), and at the same time, paste the first fiber layer (3) obtained in step S2 The second fiber layer (4) to which the second panel (6) is pasted is pasted on the other side of the frame (1);
    S4填充硬质发泡胶：在所述框体(1)的侧面钻至少一个孔，将所述硬质发泡胶通过钻出的孔填充到所述框体(1)、所述第一纤维层(3)和所述第二纤维层(4)三者构成的空腔内，填满整个空腔，待所述硬质发泡胶干燥固化后，撤去用于张紧所述抗拉纤维网(12)、所述第一纤维层(3)和所述第二纤维层(4)的拉伸装置，修除毛边，得半成品；S4 Filling rigid styrofoam: drill at least one hole on the side of the frame (1), and fill the rigid styrofoam into the frame (1), the first The cavity formed by the fiber layer (3) and the second fiber layer (4) fills the entire cavity. After the rigid foam is dried and solidified, it is removed for tensioning the tensile strength. The stretching device of the fiber web (12), the first fiber layer (3) and the second fiber layer (4) trims and removes burrs to obtain a semi-finished product;
    S5：在步骤S4所得的半成品的四周粘贴封边条(7)，得所述的预应力高强度胶合板。S5: Paste edge banding (7) around the semi-finished product obtained in step S4 to obtain the prestressed high-strength plywood.
  9. 根据权利要求8所述的预应力高强度胶合板的制造方法，其特征在于：所述步骤S1、S2、S3和S5中粘贴使用的胶均为三聚氰胺树脂胶黏剂。The method for manufacturing a prestressed high-strength plywood according to claim 8, wherein the glue used for pasting in the steps S1, S2, S3 and S5 are all melamine resin adhesives.
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CN205651462U (en) * 2016-05-20 2016-10-19 安徽上元新型家居材料有限公司 Plywood
CN107312146A (en) * 2017-06-13 2017-11-03 太仓优上展示器具有限公司 A kind of composite-material laminates and preparation method thereof
CN208646203U (en) * 2018-08-15 2019-03-26 广州悦田集装箱配件有限公司 Light-weight environment-friendly container glued board
CN209273643U (en) * 2018-08-15 2019-08-20 广州悦田集装箱配件有限公司 Antibacterial and mouldproof container glued board
CN110757906A (en) * 2019-11-15 2020-02-07 太仓优上展示器具有限公司 Prestressed high-strength plywood and manufacturing method thereof

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