CN113276229A - Method for manufacturing sewing wood shaving sandwich composite material - Google Patents
Method for manufacturing sewing wood shaving sandwich composite material Download PDFInfo
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- CN113276229A CN113276229A CN202110696198.1A CN202110696198A CN113276229A CN 113276229 A CN113276229 A CN 113276229A CN 202110696198 A CN202110696198 A CN 202110696198A CN 113276229 A CN113276229 A CN 113276229A
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- sewing
- shaving
- wood
- composite material
- manufacturing
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- 239000002023 wood Substances 0.000 title claims abstract description 43
- 238000009958 sewing Methods 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000835 fiber Substances 0.000 claims abstract description 34
- 239000000853 adhesive Substances 0.000 claims abstract description 18
- 230000001070 adhesive effect Effects 0.000 claims abstract description 18
- 239000004744 fabric Substances 0.000 claims abstract description 17
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 238000007731 hot pressing Methods 0.000 claims abstract description 12
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 244000025254 Cannabis sativa Species 0.000 claims description 8
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 claims description 8
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 claims description 8
- 235000009120 camo Nutrition 0.000 claims description 8
- 235000005607 chanvre indien Nutrition 0.000 claims description 8
- 239000011487 hemp Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000004026 adhesive bonding Methods 0.000 claims description 4
- 241000167854 Bourreria succulenta Species 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims 3
- 239000002028 Biomass Substances 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 2
- 240000000491 Corchorus aestuans Species 0.000 description 10
- 235000011777 Corchorus aestuans Nutrition 0.000 description 10
- 235000010862 Corchorus capsularis Nutrition 0.000 description 10
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 229920001807 Urea-formaldehyde Polymers 0.000 description 3
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000019270 ammonium chloride Nutrition 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Images
Classifications
-
- 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
- B27D1/06—Manufacture of central layers; Form of central layers
-
- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- 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
- B32B37/06—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
-
- 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
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
-
- 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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/04—Punching, slitting or perforating
- B32B2038/047—Perforating
-
- 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
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
-
- 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
- B32B2307/548—Creep
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The invention relates to a method for manufacturing a sewing wood shaving sandwich composite material, belonging to the technical field of manufacturing of biomass-based composite material product molding technology. The method comprises the steps of firstly stirring wood shavings and an adhesive and cutting fiber cloth, then sequentially placing the fiber cloth and the wood shavings mixed with the adhesive into a mold for paving, prepressing, demolding, then carrying out hot pressing, then drilling a preformed body after the hot pressing, sewing the preformed body after the drilling and a gummed sewing thread by using an improved lock type sewing method, and finally carrying out curing molding by using a hot press. Compared with the existing common shaving board, the shaving board has the advantages of high mechanical strength and high creep resistance, the manufacturing method can meet the requirements of shaving boards with different sizes and specifications, and the shaving board is low in cost and easy to realize. Compared with the existing oriented strand board, the oriented strand board has more excellent decorative performance.
Description
Technical Field
The invention relates to a method for manufacturing a sewing wood shaving sandwich composite material, belonging to the technical field of the molding technology and manufacturing of biomass-based composite material products.
Background
Wood is four major raw materials (wood, steel and water) recognized in the worldMud, plastic), wood is the only renewable biomass resource among the four raw materials compared with other mineral resource materials. China has abundant biomass resources, but the utilization rate is low, and a large amount of biomass energy is wasted. The production of particle boards is one of the effective methods for improving the utilization rate of biomass, especially forestry resources. According to statistics, the total annual production capacity of the shaving board in China is 3691 ten thousand meters by 2020 years3New growth production capacity 309 ten thousand m in 20203And the market demand of the shaving board is huge.
The hemp fiber is a natural plant fiber, and can be processed into a hemp thread and woven into a linen due to the fiber length, so that the hemp fiber has good mechanical properties. The hemp fiber is mainly applied to the textile industry, and the high value-added utilization of the hemp fiber is still to be explored.
However, as the living standard of people is continuously improved, the requirements on the shaving board are also improved, the existing shaving board has the characteristics of low strength, poor creep resistance and the like, the service life of the shaving board is shortened, the frequency of replacing the shaving board by a user is increased, and the economy of the user is seriously damaged.
Disclosure of Invention
The invention aims to improve the characteristics of low strength, poor creep resistance and the like of the existing shaving board, and has the advantages of low cost and high promotion strength. Thereby providing a manufacturing method of the sewing wood shaving sandwich composite material.
The technical scheme of the invention is as follows:
a method for manufacturing a sewing wood shaving sandwich composite material comprises the following steps:
1) preparing wood shaving core body wood shavings, an adhesive and a curing agent which are required by preparing the sewing wood shaving sandwich composite material, wherein the wood shaving core body and upper and lower fiber cloths are rectangular, the length is 290-340 mm, the width is 50-320 mm, and the thickness is 7-20 mm;
2) cutting fiber cloth required by the upper and lower panels, wherein the fiber cloth is rectangular, and the specific size is determined according to the size of the prepared shaving core body;
3) stirring the wood shavings and the adhesive, respectively paving the wood shavings and the upper and lower fiber cloths in a mould, and prepressing and hot-pressing the wood shavings and the upper and lower fiber cloths to prepare a preformed body;
4) placing the preformed body into a numerical control drilling machine tool, clamping the preformed body by using a clamp and realizing drilling with different intervals and different line distances;
5) sewing the preformed body with the holes by using sewing threads, wherein the sewing mode is an improved lock type sewing mode, and during sewing, firstly, a thread impregnated with the adhesive is penetrated on the preformed body, and then a bottom thread impregnated with the adhesive is penetrated on the lower surface;
6) gluing the upper surface and the lower surface of the sewn shaving sandwich composite material;
7) and carrying out hot press forming on the sewn shaving sandwich composite material by a hot press method, and curing to obtain the sewn shaving sandwich composite material.
The fiber cloth is fibrilia cloth. The sewing thread is fibrilia, the thickness of the sewing thread is 0.8-2 mm, and the used sewing thread is dipped.
The wood shaving core body wood shaving is ordinary wooden wood shaving, and the wood shaving size: the wood shavings are 3 mm-25 mm long, 3mm-6mm wide and 0.1 mm-0.6 mm thick or thinner.
The density of the wood shaving sandwich composite material is 0.6-0.9 g/cm3。
The angle of the drill holes is 30-90 degrees, the aperture is 1.5-3.5 mm, the distance of the drill holes is 5-30 mm, and the line spacing of the drill holes can be 10-40 mm.
And the thickness of the finished product after the second hot pressing is consistent with that of the finished product after the first hot pressing.
The invention has the beneficial effects that: the method for preparing the sewing wood shaving sandwich composite material is suitable for forming different thickness sizes, and has low cost and easy realization. Compared with the existing shaving board, the mechanical property and creep resistance of the common shaving board are improved. The application field of the hemp fiber is developed, and the utilization rate of the biomass material is improved.
Drawings
FIG. 1 is a flow chart of a method for molding a sewing wood shaving sandwich composite material.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
The embodiment provides a manufacturing method of a jute fiber sewing wood shaving sandwich composite material, the preparation flow is shown in figure 1, and the method specifically comprises the following steps:
the jute fiber cloth (25S) is selected as the product of the embodiment, and the fiber density is 1.5g/cm3(ii) a The adhesive belongs to urea-formaldehyde resin adhesive, the curing temperature is 100-150 ℃, and the curing agent is 20% ammonium chloride aqueous solution. The sewing thread is jute fiber with the size of 1 mm. The wood shavings are common wood shavings, and the wood shavings have the following sizes: the length is 18 mm-25 mm, the width is 3mm-6mm, and the thickness is 0.2 mm-0.6 mm.
Measuring the water content of the wood shavings, and cutting jute fiber cloth with the size of 320mm long and 340mm wide. Weighing jute fiber cloth, and weighing wood shavings, rubber and curing agent respectively to obtain preform with density of 0.7g/cm3The thickness was 13mm, the mass of the adhesive solid powder was 10% of the mass of the wood shavings, and the mass of the 20% ammonium chloride aqueous solution was 0.7% of the mass of the adhesive solid powder. The weighed solid rubber powder, the curing agent and water are stirred to obtain a urea-formaldehyde resin adhesive solution, and the adhesive solution and the wood shavings are uniformly mixed together under the action of a stirrer by an adhesive spraying method to form a mixture. And then uniformly paving the jute fiber lower layer fiber cloth, the mixture and the jute fiber upper layer cloth in a mould respectively, putting the mould into a prepress for prepressing at the pressure of 1.5MPa for 30s, demoulding, putting the mould into a hot press, and regulating the final forming thickness by using a thickness gauge, wherein the hot pressing pressure is 10MPa for 6 min. After the preform is prepared, the preform is cut into test pieces with the length of 310mm and the width of 50 mm.Then the steel wire is placed into a numerical control drilling machine tool for drilling, the row spacing of the drill holes is 10mm, the spacing is 10mm, the diameter of the holes is 2mm, and the angle is 90 degrees. And sewing the punched test piece by using a jute fiber sewing thread with the thickness of 1mm by an improved lock type sewing method, wherein the thread needs to be dipped before sewing, and the glue is urea-formaldehyde resin adhesive. Gluing the upper surface and the lower surface again after sewing, wherein the gluing amount of the single surface is 20% of the mass of the solid glue powder used by the single surface and the mass of the single-surface fiber cloth, placing the test piece into a hot press for hot pressing after brushing, and placing a thickness gauge to ensure that the thickness of the test piece is unchanged before and after hot pressing, wherein the hot pressing temperature is 120 ℃, and the time is 3 min. And curing and molding the test piece to obtain the jute fiber sewing and shaving sandwich composite material.
Example 2
The product of this embodiment is made of materials and has the same processing steps as those of embodiment 1 except that the drilling step is performed in the numerical control machine drilling step, wherein the drilling angle is 45 degrees, the interval is 12mm, the line spacing is 10mm, and the hole diameter is 2 mm. Finally, the jute fiber sewing wood shaving sandwich composite material with the W-shaped inner fiber column structure is manufactured.
Claims (8)
1. A method for manufacturing a sewing wood shaving sandwich composite material is characterized by comprising the following steps:
1) preparing wood shaving core body wood shavings, an adhesive and a curing agent required by preparing the sewing wood shaving sandwich composite material, wherein the wood shaving core body and upper and lower fiber cloths are rectangular, the length is 290-340 mm, the width is 50-320 mm, and the thickness is 7-20 mm;
2) cutting fiber cloth required by the upper and lower panels, wherein the fiber cloth is rectangular, and the specific size is determined according to the size of the prepared shaving core body;
3) stirring wood shavings and an adhesive, then paving in a mold, paving fiber cloth up and down, prepressing, and hot-pressing to prepare a preformed body;
4) placing the preformed body into a numerical control drilling machine tool, clamping the preformed body by using a clamp and realizing drilling with different intervals and different line distances;
5) sewing the preformed body with the holes by using sewing threads, wherein the sewing mode is an improved lock-type sewing mode, and during sewing, firstly, a sewing thread impregnated with the adhesive is penetrated on the preformed body, and then a bottom thread impregnated with the adhesive is penetrated on the lower surface;
6) gluing the upper surface and the lower surface of the sewn shaving sandwich composite material;
7) and carrying out hot press forming on the sewn shaving sandwich composite material by a hot press method, and curing to obtain the sewn shaving sandwich composite material.
2. The method of claim 1, wherein the fiber cloth is a hemp cloth.
3. The method of manufacturing as claimed in claim 1, wherein said wood wool core is a common wood wool, the dimensions of the wood wool being: the wood shavings are 3 mm-25 mm long, 3mm-6mm wide and 0.1 mm-0.6 mm thick or thinner.
4. A method according to claim 1 or 2, wherein the sewing thread is hemp and the sewing thread used is impregnated.
5. The method of claim 1, wherein the density of the wood shaving core composite material is 0.6-0.9 g/cm3。
6. The manufacturing method according to claim 1, wherein the drilling angle is 30-90 °, the drilling aperture is 1.5-3.5 mm, the drilling pitch is 5-30 mm, and the drilling line spacing is 10-40 mm.
7. The manufacturing method according to claim 1, wherein the second hot pressing is consistent in thickness with the finished product after the first hot pressing.
8. The manufacturing method according to claim 1, 2 or 4, wherein the sewing thread has a thickness of 0.8mm to 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696198.1A CN113276229A (en) | 2021-06-23 | 2021-06-23 | Method for manufacturing sewing wood shaving sandwich composite material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110696198.1A CN113276229A (en) | 2021-06-23 | 2021-06-23 | Method for manufacturing sewing wood shaving sandwich composite material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113276229A true CN113276229A (en) | 2021-08-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110696198.1A Pending CN113276229A (en) | 2021-06-23 | 2021-06-23 | Method for manufacturing sewing wood shaving sandwich composite material |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2745779A (en) * | 1952-10-11 | 1956-05-15 | Ritter Eugen Johann | Method of making laminated panels and product thereof |
| US4973507A (en) * | 1989-01-23 | 1990-11-27 | Horian Richard C | Thin wood laminate panel and method of fabrication |
| CN101214669A (en) * | 2008-01-15 | 2008-07-09 | 邱天祥 | Container and platform floor with bamboo oriented structure shaving board as sandwich layer and manufacturing method thereof |
| CA2638079A1 (en) * | 2008-07-17 | 2010-01-17 | Alberta Research Council Inc. | Container flooring material and method of manufacture |
| CN104325535A (en) * | 2014-10-24 | 2015-02-04 | 迪芬巴赫机械设备服务（北京）有限公司 | Directional structure shaving board producing method and system |
| CN105965620A (en) * | 2016-07-18 | 2016-09-28 | 浙江永裕竹业股份有限公司 | Heavy bamboo composite board |
| CN109551858A (en) * | 2018-12-24 | 2019-04-02 | 大连理工大学 | A kind of manufacturing method for foam core filled composite material of sewing |
-
2021
- 2021-06-23 CN CN202110696198.1A patent/CN113276229A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2745779A (en) * | 1952-10-11 | 1956-05-15 | Ritter Eugen Johann | Method of making laminated panels and product thereof |
| US4973507A (en) * | 1989-01-23 | 1990-11-27 | Horian Richard C | Thin wood laminate panel and method of fabrication |
| CN101214669A (en) * | 2008-01-15 | 2008-07-09 | 邱天祥 | Container and platform floor with bamboo oriented structure shaving board as sandwich layer and manufacturing method thereof |
| CA2638079A1 (en) * | 2008-07-17 | 2010-01-17 | Alberta Research Council Inc. | Container flooring material and method of manufacture |
| CN104325535A (en) * | 2014-10-24 | 2015-02-04 | 迪芬巴赫机械设备服务（北京）有限公司 | Directional structure shaving board producing method and system |
| CN105965620A (en) * | 2016-07-18 | 2016-09-28 | 浙江永裕竹业股份有限公司 | Heavy bamboo composite board |
| CN109551858A (en) * | 2018-12-24 | 2019-04-02 | 大连理工大学 | A kind of manufacturing method for foam core filled composite material of sewing |
Non-Patent Citations (1)
| Title |
|---|
| 卞军: "《聚合物共混改性基础》", 西南交通大学出版社 * |
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