CN105904568B - Laminated wood board, manufacturing method thereof and cable reel manufactured by laminated wood board - Google Patents
Laminated wood board, manufacturing method thereof and cable reel manufactured by laminated wood board Download PDFInfo
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- CN105904568B CN105904568B CN201610439424.7A CN201610439424A CN105904568B CN 105904568 B CN105904568 B CN 105904568B CN 201610439424 A CN201610439424 A CN 201610439424A CN 105904568 B CN105904568 B CN 105904568B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/007—Manufacture of substantially flat articles, e.g. boards, from particles or fibres and at least partly composed of recycled material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/04—Kinds or types
- B65H75/08—Kinds or types of circular or polygonal cross-section
- B65H75/14—Kinds or types of circular or polygonal cross-section with two end flanges
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Abstract
The invention discloses a laminated wood board, a manufacturing method thereof and a cable reel manufactured by using the laminated wood board, wherein the manufacturing method of the laminated wood board comprises the following steps: s1: pretreating waste wood; s2: drying; s3: mixing the glue; s4: molding and compressing; the laminated wood board is formed by mixing strip wood chips with different lengths and wood chips with irregular shapes, wherein the strip wood chips comprise wood chips with different sizes, thicknesses and widths, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filled mode; and the cable reel is manufactured by the laminated wood board. The laminated wood board is prepared by mixing the strip wood chips and the sawdust, so that the laminated wood board has low deformability, good mechanical property and processability, simple manufacturing steps and high utilization rate of waste wood, and solves the technical problem of high manufacturing cost of the cable reel.
Description
Technical Field
The invention relates to a recycling technology of waste wood, in particular to a laminated wood board, a manufacturing method thereof and a cable reel manufactured by using the laminated wood board.
Background
China is a country with small forest area, small resource quantity and uneven forest region distribution. According to statistics, the forest area of China is 1.246 hundred million hectares, the per-capita area is about 0.107 hectares, and the forest area of the whole world is about 40.19 hundred million hectares, and the per-capita area is about 0.8 hectares. The forest coverage rate of China is only 12.98%, the forest coverage rate of the whole world is 31%, and the forest area per capita is less than 1/4 of the average level of the world, so that China becomes one of countries with relative shortage of wood resources in the world, however, the comprehensive utilization rate of wood of China is only about 60%, and developed countries reach more than 80%. In the demand of wood, the demand of log accounts for an important proportion, according to data statistics, only the triangular region consumes three billion RMB on the demand of log every year, wherein, the log is used in various production processes, and the production and manufacturing of cable coils need a large amount of log, and according to statistics, about 1% of the cost is consumed for purchasing the log to complete the production of the cable coils. On the other hand, imported wood in recent years in China consumes 70-80 billion dollars of foreign exchange every year, so that the strengthening of saving and recycling of wood are very necessary.
China can generate a large amount of wood waste every year, including waste wood, waste home, decoration engineering or other industrial processes, the waste wood is usually transported to a treatment area to be destroyed, large treatment cost is spent, materials are wasted, and waste gas and the like are generated in the treatment process to cause environmental pollution. At present, the forest coverage rate continuously decreases and the ecological environment is increasingly deteriorated on the earth, the waste wood materials are reasonably utilized, and the environment for human survival is indirectly improved. Particularly, as round wood with great demand, the round wood has long growth period and high price, is felled in large scale, inevitably leads to worse ecological environment due to poor replacement, and can effectively solve the problem of recycling and high-efficiency use of waste wood.
At present, the common recycling approach of waste wood is mainly to make the waste wood into composite board through certain treatment, crush the waste wood into sheet or powder, mix the waste wood with glue to obtain composite board or finger-joint board mixed into glue, and press the composite board or finger-joint board to obtain the finished product. CN103101089A patent discloses a method for manufacturing finger-jointed wood boards by using waste wood, which comprises the following steps: the waste wood is arranged, namely the waste wood is cut into short wood sections, the short wood sections are planed, the planed short wood sections are sawed into flaky boards, the flaky boards are graded and selected, and light corrosion boards and normal boards are selected from the flaky boards, and the slightly corroded board is renovated, the normal board and the slightly corroded board obtained after the renovation are further subjected to comb treatment to obtain the board with finger-jointed teeth, then connecting and gluing the boards with the finger joint teeth through the finger joint teeth to form finger joint strips, planing the four sides of the finger joint strips, gluing the finger joint strips to be spliced into finger joint wood board blanks, and carrying out cold pressing treatment on the finger-jointed wood board blank plate by using a wood board cold press, and finally carrying out edge sawing and sanding treatment on the cold-pressed finger-jointed wood board blank plate to obtain a finger-jointed wood board finished product. CN104416645A discloses a method for manufacturing a composite board by using waste wood, which comprises the following steps of (1) finishing the waste wood; (2) drying the waste wood; (3) mixing wood chips to prepare a fluid structure; (4) feeding the fluid structure into a mold to form a sealing plate sealing body, and respectively laying a solid wood plate at the upper and lower bottoms of the sealing plate sealing body to obtain a composite plate composite body; (5) compressing the composite board complex; (6) drying and forming; (7) pasting a waterproof layer; (8) slitting: sawing, milling and cutting to obtain the finished product.
Although the finger-jointed wood board or the composite board obtained by the method is closer to solid wood and is more attractive, the manufacturing method and the structure have the following defects that (1) the finished product has low strength and low bending resistance. The finger-jointed wood board obtained by the method of the CN103101089A patent document has lower internal stress and poorer rigidity among the flaky boards because the boards are flaky boards, and the boards are easy to bend or upwarp after being cold-pressed into the wood board, and have poorer supporting strength; the composite board obtained by the method of CN104416645A patent document is made of powdery wood chips, i.e. a low-density structural body, and the powdery wood chips have low internal stress, so that the composite board has poor rigidity, low hardness, poor pressure resistance, and the like. (2) The structural stability of the finished product is poor. The sheet wood finger-jointed wood board or the powder composite board has small tension and internal friction force of the sheet wood fibers, so that the whole structure of the manufactured finger-jointed wood board or the manufactured powder composite board is loose, and the surface of the composite board is easily damaged when the surface of the composite board is rubbed or collided improperly. (3) The manufacturing engineering is complicated. The waste wood in the patent document CN103101089A needs to be cut into short wood sections, planed, sawed, sorted, renovated, combed and the like, and the waste wood in the patent document CN104416645A needs to be sent into a die to form a sealing plate sealing body and the like after being finished, dried and mixed with glue, and each process needs to consume a large amount of manpower, material resources and time.
Therefore, it is urgently needed to develop a wood board with simple manufacturing process, high strength and good bending resistance and stability.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the manufacturing method of the laminated wood board with simple manufacturing process, and solves the problems of complex manufacturing process and low recycling rate of waste wood in the existing wood board manufacturing process;
another object of the present invention is to provide a laminated wood board having good mechanical properties;
the invention further aims to provide a cable reel manufactured by using the laminated wood board, which solves the technical problems that a large amount of logs are consumed and the manufacturing cost is high in the manufacturing of the cable reel.
The technical scheme adopted by the invention is as follows:
a manufacturing method of a pressed wood board is characterized in that: the method comprises the following steps:
s1: pretreatment of waste wood: decomposing the waste wood into strip wood chips with different lengths and wood chips with irregular shapes;
s2: drying, namely heating the strip wood chips and the wood chips to a certain temperature for drying;
s3: mixing the glue: mixing the strip wood chips, the wood chips and the adhesive;
s4: molding and compressing: and putting the strip wood chips and the saw dust into a forming die for high-pressure compression to obtain the formed laminated wood board.
Further, in step S1, the waste wood is broken into strip-shaped wood chips with different lengths by a chipper, and the waste wood is broken into wood chips with irregular shapes by a crusher.
Further, the temperature in the step S2 is 100-180 ℃, so that the moisture content of the strip-shaped wood chips and the wood chips is 10-20%.
Further, in the step S3, the weight ratio of the strip-shaped wood chips to the wood chips is 6:1-1: 1; the adhesive is a powder adhesive or a liquid adhesive.
Further, in the step S4, before the forming compression, the wood chips and the wood chips are compressed under high pressure to obtain a flat-sheet-shaped preform; the volume ratio of the preform to the compressed formed wood board is 5:1-15: 1.
A laminated wood board is formed by mixing strip wood chips with different lengths and wood chips with irregular shapes.
Further, the strip-shaped wood chips comprise wood chips with different sizes, thicknesses and widths.
Further, the strip-shaped wood chips are laminated in a mutually crossing or staggered manner.
Further, the wood chips are arranged in gaps among the strip-shaped wood chips in a tabling or filling mode.
A cable reel manufactured by a laminated wood board comprises two side reels, wherein each side reel comprises an inner ring, an outer ring and a plurality of spokes, the inner ring and the outer ring are fixedly connected through the spokes, through holes are formed in the spokes, a plurality of lead screws are arranged between the two side reels and respectively penetrate through the through holes in the spokes on the two side reels, nuts are arranged at two ends of each lead screw for fixation, a plurality of wire winding plates are arranged between every two lead screws, a driving structure is arranged on each side reel and is a flange, a protection plate is arranged between the inner ring and the outer ring, and the wire winding plates and the protection plate are both formed by the laminated wood board according to any one of claims 6-8.
A cable reel made of laminated wood boards, comprising two side discs, wherein a driving hole is formed in the middle of each side disc, a driven hole is formed in one side of each driving hole, a plurality of lead screws are arranged between the two side discs, the lead screws respectively penetrate through the two side discs and are fixed through nuts, a plurality of wire winding plates are arranged between every two lead screws, and each wire winding plate and each side disc are made of the laminated wood board as claimed in any one of claims 6 to 8.
Compared with the prior art, the invention has the beneficial effects that:
(1) the strip wood chips comprise wood chips with different sizes, thicknesses and widths, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedding or filling mode, so that on one hand, fibers of the strip wood chips are kept complete, and on the other hand, the wood chips fill gaps among the strip wood chips to enable particles in the wood board to be tighter, the rigidity of the wood board is effectively improved, and the wood board is harder and more stable.
(2) The laminated wood board comprises strip wood chips with short lengths and wood chips with irregular shapes, and the strip wood chips and the wood chips are formed by processing crushed waste wood materials, so that raw materials for manufacturing are convenient to obtain.
(3) The laminated wood board of the present invention is made of strip-shaped wood chips and wood chips, and the existing production and processing processes of wooden products usually consume a large amount of round wood, as described in the background art, only the pearl triangle area consumes three billion renminbi on the requirement of round wood every year, wherein, of the three billion renminbi consumed, about 1% of the cost is consumed for purchasing round wood to complete the production of cable trays; the raw materials of the wood board can be obtained by simply crushing the waste wood, so that the waste wood is extremely high in recycling rate, the use of a large amount of logs can be reduced, the number of trees can be effectively increased, the forest coverage rate is increased, the wood board is efficient and environment-friendly, the problem that wood needs to be transported in the production of wood products is solved, and the production cost is greatly reduced.
(4) According to the manufacturing method of the laminated wood board, the rough processing of pre-forming compression is carried out, namely the strip wood chips and the wood chips are compressed at high pressure to obtain the flat-sheet-shaped pre-forming blank, so that the volume, the weight and the like of the processed raw materials are reduced, the transportation in the forming compression process is facilitated, and the manufacturing process is more efficient.
(5) In the manufacturing method of the pressed wood board, the convex strips are arranged on the inner surface of the forming die, so that an irregular concave structure is formed on the surface of the formed wood board, the stress area of the wood board is increased due to the concave structure, and the compression resistance and the bending resistance are greatly improved.
(6) The laminated wood board is simple in manufacturing process, is directly formed and compressed after the waste wood is arranged, dried, mixed with glue, preformed and compressed, saves the steps of refining, classifying, polishing, sorting, laminating layers, slitting and the like of the waste wood in the traditional production process, greatly saves manpower and material resources, and greatly shortens the manufacturing time.
Drawings
FIG. 1 is a schematic structural diagram of a laminated wood board according to the present invention.
Fig. 2 is a schematic structural diagram of a cable drum made of a laminated wood board according to the present invention.
Fig. 3 is a side view of the structure of the cable drum of fig. 1 made of a laminated wood board according to the present invention.
Fig. 4 is a cross-sectional view of fig. 3B-B.
Fig. 5 is a schematic structural diagram of another cable reel made of a laminated wood board according to the present invention.
Detailed Description
Example one
A manufacturing method of a laminated wood board comprises the following steps:
s1: pretreatment of waste wood: the waste wood is decomposed into strip wood chips with different lengths and wood chips with irregular shapes, and large metal substances such as ironwork and other accessories which are not suitable for being blended into wood board processing in the waste wood are removed before the waste wood is specifically crushed; and then the waste wood is decomposed into strip wood chips with different lengths by a chipping machine, when the waste wood is specifically decomposed, in order to decompose the strip wood chips with different lengths and shorter lengths, in the decomposition process, the power of the chipping machine needs to be switched and the chipping direction of the chipping machine needs to be converted, the wood chips need to be screened after chipping is finished, and the required wood chips with different lengths are finally selected by screening with grids with different sizes. The waste wood is decomposed into wood chips with irregular shapes by a crusher, in order to decompose the irregular wood chips, the power and the crushing direction of the crusher also need to be controlled in the decomposition process, the wood chips need to be screened after the decomposition process is completed, and the required irregular wood chips are finally selected by screening grids with different sizes.
S2: and (3) drying, namely heating the strip wood chips and the wood chips to a certain temperature for drying, wherein the temperature is 100 ℃, so that the moisture content of the strip wood chips and the wood chips is 20%. When the heating furnace is used for heating, the wood chips are poured into the heating furnace and then the strip-shaped wood chips are placed, so that the wood chips are irregularly jumped after being fully heated in the heating process, gaps among the strip-shaped wood chips are preliminarily inlaid, and the interior of the wood board is densely filled.
S3: mixing the glue: mixing the strip wood chips, the wood chips and the adhesive, wherein the weight ratio of the strip wood chips to the wood chips is 4: 1; the adhesive is a powder adhesive; in the specific mixing, the wood chips are light in weight and small in volume, so that the wood chips are easily and rapidly mixed with the adhesive and penetrate into gaps among the wood chips, and the filling densification is further completed.
S4: molding and compressing: putting the strip wood chips and the wood chips into a forming die to be compressed at high pressure to obtain a forming laminated wood board, and before forming and compression, performing high-pressure compression on the strip wood chips and the wood chips to obtain a flat-sheet-shaped pre-forming blank; the volume ratio of the pre-forming blank to the compressed forming wood board is 5:1, the volume of the strip wood chips and the wood chips is greatly compressed in the pre-forming process, and the strip wood chips and the wood chips are convenient to convey and place into a forming die; the convex strips are arranged on the inner surface of the forming die, so that an irregular concave structure can be formed on the surface of the formed wood board, the stress area of the wood board is increased due to the concave structure, and the compression resistance and the bending resistance are greatly improved.
Example two
A manufacturing method of a laminated wood board comprises the following steps:
s1: pretreatment of waste wood: the waste wood is decomposed into strip wood chips with different lengths and wood chips with irregular shapes, and large metal substances such as ironwork and other accessories which are not suitable for being blended into wood board processing in the waste wood are removed before the waste wood is specifically crushed; and then the waste wood is decomposed into strip wood chips with different lengths by a chipping machine, when the waste wood is specifically decomposed, in order to decompose the strip wood chips with different lengths and shorter lengths, in the decomposition process, the power of the chipping machine needs to be switched and the chipping direction of the chipping machine needs to be changed, the wood chips need to be screened after chipping is finished, and the required wood chips with different lengths are finally selected by screening with grids with different sizes. The waste wood is decomposed into wood chips with irregular shapes by a crusher, in order to decompose the irregular wood chips, the power and the crushing direction of the crusher also need to be controlled in the decomposition process, the wood chips need to be screened after the decomposition process is completed, and the required irregular wood chips are finally selected by screening grids with different sizes.
S2: and (3) drying, namely heating the strip wood chips and the wood chips to a certain temperature for drying, wherein the temperature is 180 ℃, and the moisture content of the strip wood chips and the wood chips is 10%. When the heating furnace is used for heating, the wood chips are poured into the heating furnace and then the strip-shaped wood chips are placed, so that the wood chips are irregularly jumped after being fully heated in the heating process, gaps among the strip-shaped wood chips are preliminarily inlaid, and the interior of the wood board is densely filled.
S3: mixing the glue: mixing the strip wood chips, the wood chips and the adhesive, wherein the weight ratio of the strip wood chips to the wood chips is 3: 1; the adhesive is a powder adhesive; in the specific mixing, the wood chips are light in weight and small in volume, so that the wood chips are easily and rapidly mixed with the adhesive and penetrate into gaps among the wood chips, and the filling densification is further completed.
S4: molding and compressing: putting the strip wood chips and the wood chips into a forming die to be compressed at high pressure to obtain a forming laminated wood board, and before forming and compression, performing high-pressure compression on the strip wood chips and the wood chips to obtain a flat-sheet-shaped pre-forming blank; the volume ratio of the pre-forming blank to the compressed forming wood board is 15:1, the volume of the strip wood chips and the wood chips is greatly compressed in the pre-forming process, and the strip wood chips and the wood chips are convenient to convey and place into a forming die; the convex strips are arranged on the inner surface of the forming die, so that an irregular concave structure can be formed on the surface of the formed wood board, the stress area of the wood board is increased due to the concave structure, and the compression resistance and the bending resistance are greatly improved.
EXAMPLE III
A manufacturing method of a laminated wood board comprises the following steps:
s1: pretreatment of waste wood: the waste wood is decomposed into strip wood chips with different lengths and wood chips with irregular shapes, and large metal substances such as ironwork and other accessories which are not suitable for being blended into wood board processing in the waste wood are removed before the waste wood is specifically crushed; and then the waste wood is decomposed into strip wood chips with different lengths by a chipping machine, when the waste wood is specifically decomposed, in order to decompose the strip wood chips with different lengths and shorter lengths, in the decomposition process, the power of the chipping machine needs to be switched and the chipping direction of the chipping machine needs to be changed, the wood chips need to be screened after chipping is finished, and the required wood chips with different lengths are finally selected by screening with grids with different sizes. The waste wood is decomposed into wood chips with irregular shapes by a crusher, in order to decompose the irregular wood chips, the power and the crushing direction of the crusher also need to be controlled in the decomposition process, the wood chips need to be screened after the decomposition process is completed, and the required irregular wood chips are finally selected by screening grids with different sizes.
S2: and (3) drying, namely heating the strip wood chips and the wood chips to a certain temperature for drying, wherein the temperature is 140 ℃, and the moisture content of the strip wood chips and the wood chips is 15%. When the heating furnace is used for heating, the wood chips are poured into the heating furnace and then the strip-shaped wood chips are placed, so that the wood chips are irregularly jumped after being fully heated in the heating process, gaps among the strip-shaped wood chips are preliminarily inlaid, and the interior of the wood board is densely filled.
S3: mixing the glue: mixing the strip wood chips, the wood chips and the adhesive, wherein the weight ratio of the strip wood chips to the wood chips is 4: 1; the adhesive is a powder adhesive; in the specific mixing, the wood chips are light in weight and small in volume, so that the wood chips are easily and rapidly mixed with the adhesive and penetrate into gaps among the wood chips, and the filling densification is further completed.
S4: molding and compressing: putting the strip wood chips and the wood chips into a forming die to be compressed at high pressure to obtain a forming laminated wood board, and before forming and compression, performing high-pressure compression on the strip wood chips and the wood chips to obtain a flat-sheet-shaped pre-forming blank; the volume ratio of the pre-forming blank to the compressed forming wood board is 7:1, the volume of the strip wood chips and the wood chips is greatly compressed in the pre-forming process, and the strip wood chips and the wood chips are convenient to convey and place into a forming die; the convex strips are arranged on the inner surface of the forming die, so that an irregular concave structure can be formed on the surface of the formed wood board, the stress area of the wood board is increased due to the concave structure, and the compression resistance and the bending resistance are greatly improved.
Example four
A laminated wood board is formed by mixing strip wood chips with different lengths and wood chips with irregular shapes, wherein the strip wood chips comprise wood chips with different sizes, thicknesses and widths, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filled mode. Wherein the water content of the strip wood chips and the wood chips is 10%, the length range of the strip wood chips is 5cm-10cm, the thickness range is 2mm-3mm, the width range is 1cm-3cm, the length range of the wood chips is 0.5cm-2cm, the thickness range is 0.5mm-1mm, and the width range is 1mm-3 mm. In addition, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filling mode, so that the fibers of the strip wood chips are kept complete, and the original toughness and strength of the wood chips are kept; simultaneously, the saw-dust has filled the clearance each other of strip wood chip and has made each particle of inside of plank inseparabler, hardly leaves any clearance, make remain in the plank between the wood chip, between the saw-dust and between wood chip and the saw-dust mechanical properties, therefore, effectively improved the rigidity and the hardness of plank, make the plank harder more stable, compare in traditional slice composite sheet or powdery composite sheet or makeup, the intensity of this pressfitting plank has promoted 25%, its bearing force, shear force and bending resistance have also promoted 15%, consequently reduced the phenomenon that the plank becomes the warpage.
EXAMPLE five
A laminated wood board is formed by mixing strip wood chips with different lengths and wood chips with irregular shapes, wherein the strip wood chips comprise wood chips with different sizes, thicknesses and widths, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filled mode. Wherein the water content of the strip wood chips and the wood chips is 20%, the length range of the strip wood chips is 10cm-15cm, the thickness range is 3mm-5mm, the width range is 3cm-6cm, the length range of the wood chips is 2cm-3cm, the thickness range is 2mm-4mm, and the width range is 3mm-5 mm. In addition, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filling mode, so that the fibers of the strip wood chips are kept complete, and the original toughness and strength of the wood chips are kept; meanwhile, the wood chips are filled in gaps among the strip-shaped wood chips, so that each particle in the wood board is tighter, and almost no gap is reserved, so that the mechanical properties among the wood chips, among the wood chips and between the wood chips are reserved in the wood board, therefore, the rigidity and hardness of the wood board are effectively improved, the wood board is harder and more stable, compared with the traditional sheet-shaped composite board or powder-shaped composite board or jointed board, the strength of the pressed wood board is improved by 20%, the bearing force, the shearing force and the bending resistance of the pressed wood board are also improved by 10%, and the phenomenon that the wood board is warped is reduced.
EXAMPLE six
A laminated wood board is formed by mixing strip wood chips with different lengths and wood chips with irregular shapes, wherein the strip wood chips comprise wood chips with different sizes, thicknesses and widths, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filled mode. Wherein the water content of the strip wood chips and the wood chips is 15%, the length range of the strip wood chips is 15cm-20cm, the thickness range is 5mm-8mm, the width range is 6cm-9cm, the length range of the wood chips is 3cm-6cm, the thickness range is 4mm-5mm, and the width range is 5mm-8 mm. In addition, the strip wood chips are overlapped in a mutually crossed or staggered mode, and the wood chips are arranged in gaps among the strip wood chips in an embedded or filling mode, so that the fibers of the strip wood chips are kept complete, and the original toughness and strength of the wood chips are kept; simultaneously, the saw-dust has filled the clearance each other of strip wood chip and has made each particle of inside of plank inseparabler, hardly leaves any clearance, make remain in the plank between the wood chip, between the saw-dust and between wood chip and the saw-dust mechanical properties, therefore, effectively improved the rigidity and the hardness of plank, make the plank harder more stable, compare in traditional slice composite sheet or powdery composite sheet or makeup, the intensity of this pressfitting plank has promoted 15%, its bearing force, shear force and bending resistance have also promoted 12%, consequently reduced the phenomenon that the plank becomes the warpage.
EXAMPLE seven
As shown in fig. 1 to 4, a cable reel manufactured by using a laminated wood board comprises two side reels, each side reel comprises an inner ring 1, an outer ring 2 and a plurality of spokes 3, the inner ring 1 and the outer ring 2 are fixedly connected through the spokes 3, through holes are formed in the spokes 3, a plurality of lead screws 4 are arranged between the two side reels, the lead screws 4 respectively penetrate through the through holes in the spokes 3 on the two side reels, two ends of each lead screw 4 are respectively fixed by nuts, a plurality of wire winding plates 6 are arranged between every two lead screws 4, a driving structure is arranged on each side reel, the driving structure is a flange 7, a protection plate 5 is arranged between the inner ring 1 and the outer ring 2, and the wire winding plates 6 and the protection plate 5 are both formed by the laminated wood board according to any one of claims 6 to 8.
When the cable reel is manufactured, the main steps of setting the laminated wood board comprise: (1) manufacturing cable reel forming dies, wherein the cable reel forming dies in different shapes can be manufactured according to cable reels in different shapes, and the cable reels can be fan-shaped cable reel forming dies; (2) molding and compressing, namely putting the pressed wood board preform into a corresponding cable reel molding die for molding and compressing to obtain a rough product; (3) and (4) polishing, specifically, polishing the rough finished product appropriately to obtain a required laminated wood board finished product.
Example eight
As shown in fig. 1 and 5, a cable reel made of laminated wood boards comprises two side reels 1, wherein a driving hole 4 is formed in the middle of each side reel 1, a driven hole 5 is formed in one side of each driving hole 4, a plurality of lead screws 3 are arranged between the two side reels 1, the lead screws 3 respectively penetrate through the two side reels 1 and are fixed through nuts, a plurality of wire winding plates 6 are arranged between every two lead screws 1, and each of the wire winding plates 6 and the side reels 1 is made of the laminated wood board according to any one of claims 6 to 8.
When the cable reel is manufactured, the main steps of setting the laminated wood board comprise: (1) manufacturing cable reel forming dies, wherein the cable reel forming dies in different shapes can be manufactured according to cable reels in different shapes, and the cable reel forming dies can be truncated cone-shaped cable reel forming dies; (2) and (3) molding and compressing, specifically, putting the wood board preform into a corresponding cable reel molding die for molding and compressing to obtain a pressed wood board rough product.
Various other changes and modifications to the above-described embodiments and concepts will become apparent to those skilled in the art from the above description, and all such changes and modifications are intended to be included within the scope of the present invention as defined in the appended claims.
Claims (3)
1. The utility model provides a cable drum, includes both sides dish, the side dish includes inner circle, outer lane, a plurality of spoke, its characterized in that: a flange is arranged in the middle of each side disc, the flange is fixedly connected with the end part of each spoke, the inner ring and the outer ring are fixedly connected through the spokes, through holes are formed in the spokes, a plurality of lead screws are arranged between the two side discs, the lead screws respectively penetrate through the through holes in the spokes on the two side discs, two ends of each lead screw are respectively fixed by nuts, a plurality of wire winding plates are arranged between every two lead screws, and a protective plate is arranged between the inner ring and the outer ring;
the winding board and the guard board of the cable reel are made of laminated wood boards, and the manufacturing method of the laminated wood boards comprises the following steps:
s1: pretreatment of waste wood: the waste wood is decomposed into strip wood chips with different lengths, the length range of 15cm-20cm, the thickness range of 5mm-8mm and the width range of 6cm-9cm and wood chips with irregular shapes, the length range of 3cm-6cm, the thickness range of 4mm-5mm and the width range of 5mm-8mm, and the strip wood chips are overlapped in a mutually crossed or staggered mode; the wood chips are arranged in gaps among the strip-shaped wood chips in a tabling or filling mode;
s2: drying, namely heating the strip wood chips and the wood chips to a certain temperature for drying;
s3: mixing the glue: mixing the strip wood chips, the wood chips and the adhesive;
s4: molding and compressing: putting the strip wood chips and the saw dust into a forming die for high-pressure compression to obtain a formed laminated wood board;
in the step S2, the temperature is 100 ℃ and 180 ℃, so that the moisture content of the strip wood chips and the wood chips is 10-20%; during heating, firstly, the wood chips are poured into a heating furnace and then the strip-shaped wood chips are placed;
in the step S3, the weight ratio of the strip wood chips to the wood chips is 6:1-1: 1; the adhesive is a powder adhesive or a liquid adhesive;
in the step S4, before the forming compression, the strip-shaped wood chips and the wood chips are compressed under high pressure to obtain flat-sheet-shaped preforms; the volume ratio of the pre-formed blank to the compressed formed wood board is 5:1-15: 1; the inner surface of the forming die is provided with a convex strip block.
2. The cable drum according to claim 1, wherein: in the step S1, the waste wood is broken into strip-shaped wood chips with different lengths by a chipper, and broken into wood chips with irregular shapes by a crusher.
3. The cable drum according to claim 1, wherein: the strip-shaped wood chips comprise wood chips with different sizes, thicknesses and widths.
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