CN114953077B - Manufacturing process of bamboo board with composite structure - Google Patents
Manufacturing process of bamboo board with composite structure Download PDFInfo
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- CN114953077B CN114953077B CN202210542203.8A CN202210542203A CN114953077B CN 114953077 B CN114953077 B CN 114953077B CN 202210542203 A CN202210542203 A CN 202210542203A CN 114953077 B CN114953077 B CN 114953077B
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- 239000011425 bamboo Substances 0.000 title claims abstract description 272
- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 269
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 269
- 241001330002 Bambuseae Species 0.000 title claims abstract description 269
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 269
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000002131 composite material Substances 0.000 title claims abstract description 16
- 238000007731 hot pressing Methods 0.000 claims abstract description 59
- 238000001035 drying Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 23
- 230000008569 process Effects 0.000 claims abstract description 23
- 238000003763 carbonization Methods 0.000 claims abstract description 21
- 238000005520 cutting process Methods 0.000 claims abstract description 21
- 239000011265 semifinished product Substances 0.000 claims abstract description 18
- 238000005336 cracking Methods 0.000 claims abstract description 15
- 238000002791 soaking Methods 0.000 claims abstract description 15
- 239000002023 wood Substances 0.000 claims abstract description 14
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims description 39
- 239000003292 glue Substances 0.000 claims description 24
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000007598 dipping method Methods 0.000 claims description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 8
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 claims description 8
- 239000003921 oil Substances 0.000 claims description 8
- 235000019198 oils Nutrition 0.000 claims description 8
- 238000009954 braiding Methods 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 6
- 230000001070 adhesive effect Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000010000 carbonizing Methods 0.000 claims description 5
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
- JDLKFOPOAOFWQN-VIFPVBQESA-N Allicin Natural products C=CCS[S@](=O)CC=C JDLKFOPOAOFWQN-VIFPVBQESA-N 0.000 claims description 4
- 240000000233 Melia azedarach Species 0.000 claims description 4
- 235000019484 Rapeseed oil Nutrition 0.000 claims description 4
- JDLKFOPOAOFWQN-UHFFFAOYSA-N allicin Chemical compound C=CCSS(=O)CC=C JDLKFOPOAOFWQN-UHFFFAOYSA-N 0.000 claims description 4
- 235000010081 allicin Nutrition 0.000 claims description 4
- 239000004203 carnauba wax Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 claims description 4
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 claims description 4
- 229960002216 methylparaben Drugs 0.000 claims description 4
- 239000005011 phenolic resin Substances 0.000 claims description 4
- 229920001568 phenolic resin Polymers 0.000 claims description 4
- 239000010665 pine oil Substances 0.000 claims description 4
- 229920000136 polysorbate Polymers 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 239000002383 tung oil Substances 0.000 claims description 4
- 229940045860 white wax Drugs 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 241001655736 Catalpa bignonioides Species 0.000 claims 1
- 238000002360 preparation method Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000000748 compression moulding Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 77
- 238000007599 discharging Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 238000011068 loading method Methods 0.000 description 6
- 238000003892 spreading Methods 0.000 description 6
- 230000007480 spreading Effects 0.000 description 6
- 238000003825 pressing Methods 0.000 description 5
- 241000723422 Catalpa Species 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 244000302661 Phyllostachys pubescens Species 0.000 description 1
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K9/00—Chemical or physical treatment of reed, straw, or similar material
- B27K9/002—Cane, bamboo
-
- 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
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/02—Processes; Apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/36—Aliphatic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/38—Aromatic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27K—PROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
- B27K3/00—Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
- B27K3/34—Organic impregnating agents
- B27K3/50—Mixtures of different organic impregnating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/06—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by burning or charring, e.g. cutting with hot wire
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Forests & Forestry (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention relates to the technical field of bamboo board manufacturing, in particular to a manufacturing process of a bamboo board with a composite structure, which comprises the steps of bamboo strip preparation, carbonization, drying and soaking: placing the dried bamboo bundles and bamboo layers into a wood anti-cracking agent, pressurizing and soaking for 2-5 days, taking out, placing into a natural environment, drying in the shade, and obtaining dried bamboo bundles and bamboo layers, preparing the bamboo bundles, preparing the bamboo layers, gluing, paving, hot pressing and cutting: the method comprises the steps of cutting the formed bamboo board to obtain the bamboo board with the required size, alternately stacking a plurality of rolled bamboo bundle layers and a plurality of non-rolled bamboo sheet layers to form a bamboo board semi-finished product in the preparation process, and then heating and curing the bamboo board semi-finished product integrally and performing compression molding, so that the bamboo board is manufactured by only performing one-time hot pressing, and compared with the traditional molding process, the steps are greatly simplified, and the production cost is remarkably reduced.
Description
Technical Field
The invention relates to the technical field of bamboo board manufacturing, in particular to a manufacturing process of a bamboo board with a composite structure.
Background
Bamboo boards are widely used because of their excellent physical properties and their low coefficient of water expansion and non-deformation. The bamboo-wood composite board is a board which is formed by taking bamboo and wood as main raw materials and pressing after drying and gluing, and the implementation forms comprise cutting and slicing (radial or chord direction), curtain braiding, primary drying, gluing and secondary drying, wherein wood veneers after wood is subjected to rotary cutting, drying and gluing are compounded, have various compound proportions and compound structures, and the bamboo curtain braiding has uniform longitudinal and crisscross structures. The surface layer is provided with a decorative layer and a wear-resistant layer which are used for covering a layer of dipping plate as the surface according to the requirement on part of the surface of the plate. The product has the purposes of container bottom plate, carriage bottom plate, building template and the like
In the existing preparation process of the composite bamboo board, at least the processes of cutting, slicing (radial or chord direction) the moso bamboo, braiding, primary drying, sizing, secondary drying, paving, pressing and the like are included, the cracking condition of the composite bamboo board prepared by the process is easy to occur due to environmental factors in the use process, the production efficiency of the existing composite bamboo board is low, and the production cost is increased.
Disclosure of Invention
The invention aims to provide a manufacturing process of a bamboo board with a composite structure, which solves the problems mentioned in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a process for manufacturing a bamboo board with a composite structure, comprising the following steps:
S1, preparing bamboo strips: cutting, slicing, rolling or not rolling bamboo in sequence to obtain bamboo bundles and bamboo layers respectively;
S2, carbonizing: preheating the surfaces of the bamboo bundles and the bamboo layers to 80-90 ℃, putting the bamboo bundles and the bamboo layers into a carbonization chamber for carbonization treatment, controlling the carbonization temperature to 150-180 ℃, controlling the humidity to 70-90%, and controlling the carbonization time to 2-3 hours to obtain carbonized bamboo bundles and bamboo layers;
S3, drying: drying the carbonized bamboo bundles and bamboo layers in a drying chamber, and controlling the humidity of the bamboo bundles and bamboo layers to be 10-15% to obtain dried bamboo bundles and bamboo layers;
s4, soaking: placing the dried bamboo bundles and bamboo layers into a wood anti-cracking agent, pressurizing and soaking for 2-5 days, taking out, and drying in the shade in the natural environment at the soaking temperature of 30-40 ℃ to obtain dried bamboo bundles and bamboo layers;
s5, preparing a bamboo bundle layer: arranging the bamboo bundles after drying in the shade, dipping glue and drying for the second time to obtain a rolled bamboo bundle layer;
s6, preparing a bamboo sheet layer: braiding bamboo strips after drying in the shade into a bamboo curtain, dipping glue and drying for the second time to obtain a rolling-free bamboo strip layer;
s7, gluing: feeding the processed rolled bamboo bundle layers and the non-rolled bamboo sheet layers into a gluing machine for gluing, selecting single-sided gluing or double-sided gluing according to requirements, and opening and aging the bamboo laminated timber specification plate after the gluing is finished, wherein the aging time is 2-6 hours;
S8, paving: at least one rolled bamboo bundle layer and at least one non-rolled bamboo sheet layer are stacked in a staggered manner to form a bamboo board semi-finished product, glue is coated on a corresponding contact surface, and the upper surface and/or the lower surface of the bamboo board semi-finished product are/is the rolled bamboo bundle layers;
S9, hot pressing: carrying out hot press molding on the semi-finished product of the bamboo board by adopting a hot press;
s10, cutting: and cutting the formed bamboo board to obtain the bamboo board with the required size.
Preferably, the wood anti-cracking agent is prepared from the following raw materials in parts by weight: 15-25 parts of rapeseed oil, 20-30 parts of pine oil, 10-30 parts of catalpa oil, 12-30 parts of tung oil, 13-22 parts of palm wax, 10-25 parts of white wax, 1-2.5 parts of methylparaben, 5-15 parts of glycerin, 2-6 parts of tween, 3-8 parts of cobalt iso-octoate, 1-4 parts of chinaberry oil and 1-4 parts of allicin.
Preferably, the step S2 further includes screening the bamboo bundles and the bamboo layer after the carbonization is completed, and removing the unqualified bamboo bundles and bamboo layer.
Preferably, the adhesive used in the step S7 is phenolic resin glue solution with 40% of solid content, and the adhesive coating amount is 200-300 g/m 2.
Preferably, the hot press in step S9 includes a bottom plate, a mounting rack and a hydraulic cylinder, the mounting rack spans and is mounted at the top of the bottom plate, the hydraulic cylinder is mounted at the top of the mounting rack, the bottom of a piston rod inside the hydraulic cylinder penetrates through the top of the mounting rack and is provided with a first hot pressing plate, a driving mechanism is mounted on the bottom plate, two groups of placing racks for placing bamboo boards are mounted on the driving mechanism, a space is arranged between the two groups of placing racks, the driving mechanism drives the two groups of placing racks to slide and are alternately positioned below the first hot pressing plate, and positioning mechanisms are symmetrically arranged at the same sides of two opposite ends of the bottom plate and are used for positioning when the bamboo boards are placed on the placing racks;
The rack includes four parallel arrangement and the two-phase opposite reference columns that set up, and the reference column is connected with actuating mechanism, four sets of be provided with the second hot pressboard of at least two sets of on the outer wall between the reference column, a set of second hot pressboard and reference column fixed connection that is located the below, a plurality of sets of second hot pressboards and reference column sliding connection that are located the top, adjacent two sets of all overlap on the reference column outer wall between the second hot pressboard and be equipped with the spring.
Preferably, the four groups of positioning columns are in threaded connection with limiting blocks, and a distance is arranged between each limiting block and the uppermost group of second hot pressing plates.
Preferably, the driving mechanism comprises two first screw rods, the two first screw rods are rotationally connected between opposite ends of the inner cavity of the bottom plate, the two first screw rods are arranged in parallel, driving motors connected with the two first screw rods are respectively arranged on the side wall of one end of the bottom plate, two sliding blocks are connected to the outer wall of the first screw rods in a threaded mode, two sliding blocks on the two first screw rods are arranged in a two-to-two mode, the tops of the two sliding blocks which are symmetrically arranged penetrate through the top of the bottom plate and are fixedly connected with the positioning columns, and sliding grooves matched with the sliding blocks are formed in the top of the bottom plate.
Preferably, the fixed blocks are symmetrically arranged in the middle of one side surface of the two groups of second hot pressing plates which are positioned at the lowest part in the placing frame, the fixed seats matched with the two groups of fixed blocks are symmetrically arranged at the opposite ends of the top of the bottom plate, the two groups of fixed grooves matched with the fixed blocks are formed in one side surface of the fixed seats, which is close to each other, of the two groups of fixed blocks, the inner side wall of each fixed groove is provided with a push type switch matched with a driving motor, and when any group of push type switches are in a push state, the driving motor is in a closed state.
Preferably, the positioning mechanism comprises a first installation column with a hollow inside, the first installation column is vertically installed at the top of the bottom plate, a second screw rod is connected between the top and the bottom of an inner cavity of the first installation column in a rotating mode, a second driving motor which is mutually connected with the second screw rod is installed at the top of the first installation column, an installation seat is connected with the outer wall of the second screw rod in a threaded mode, one end of the installation seat penetrates through the side wall of the first installation column and is provided with an electric telescopic rod, the telescopic end of the electric telescopic rod faces towards the placement frame, and an adjustable positioning assembly is installed at the telescopic end of the electric telescopic rod.
Preferably, the locating component comprises a double-end electric push rod and a first locating plate, one side face of a middle fixing part of the double-end electric push rod is arranged at the telescopic end of the electric telescopic rod, one side face of the first locating plate is arranged at the other side face of the middle fixing part of the double-end electric push rod, the first locating plate is hollow in the and is provided with openings at two ends, two groups of second locating plates are symmetrically and slidably connected in the inner cavity of the first locating plate, the two groups of second locating plates respectively penetrate through the openings at two ends of the first locating plate, two groups of second locating plates are symmetrically provided with mounting blocks at one side face of the second locating plate far away from the rack, the telescopic ends at two ends of the double-end electric push rod are respectively fixedly connected with the two groups of mounting blocks, and one ends, far away from each other, of the second locating plates are bent for 90 degrees towards the rack.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the manufacturing process, the dried bamboo bundles and bamboo layers are immersed into the wood anti-cracking agent for soaking, so that when the use environment is wet, the anti-cracking agent can form a protective film on the surface of the bamboo board, the influence of the external environment on the inside of the bamboo board is prevented, when the use environment is dry, the anti-cracking agent is provided with hydrophilic water-retaining components, so that the phenomenon of cracking caused by rapid change of the internal material conditions of the bamboo board under the drying condition can be effectively prevented, meanwhile, the anti-cracking method in the process is simple and controllable in the whole process, and is made of pure natural raw materials, and is green and environment-friendly, and free of heavy metals, substances such as toluene and azo harmful to human bodies, other toxic byproducts and harmful substances such as formaldehyde are not generated in the production process;
2. in the preparation process of the bamboo board, a plurality of rolled bamboo bundle layers and a plurality of non-rolled bamboo sheet layers are stacked in a staggered manner to form a bamboo board semi-finished product, and then the bamboo board semi-finished product is heated, solidified and pressed to form, so that the bamboo board is manufactured, and only one-time hot pressing is needed, and compared with the traditional forming process, the steps are greatly simplified, and the production cost is remarkably reduced;
3. In the hot press, after the hot pressing of the bamboo boards on one group of the racks is finished, the other hot press machine assembled with the bamboo boards can quickly enter the hot pressing area, and the racks after the hot pressing is finished are moved into the feeding and discharging areas to feed and discharge materials, so that the hot pressing efficiency of the bamboo boards is improved, and the production cost is further reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a hot press according to the present invention;
FIG. 2 is a schematic diagram of the front view of the hot press according to the present invention;
FIG. 3 is a schematic view of the thermal press of the present invention in front cross-section;
FIG. 4 is an enlarged schematic view of the structure shown at A in FIG. 3;
FIG. 5 is a schematic diagram showing a connection structure of a driving mechanism and a placement frame of the hot press of the present invention;
FIG. 6 is a schematic view of the structure of a rack of the hot press of the present invention;
FIG. 7 is a schematic view of an angular structure of a positioning mechanism of a hot press according to the present invention;
FIG. 8 is a schematic view of another angular configuration of the positioning mechanism of the hot press of the present invention;
FIG. 9 is a schematic structural view of a feeding and discharging mechanism of the hot press of the present invention;
FIG. 10 is a schematic diagram of a manufacturing process flow of the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. A hot press; 11. a bottom plate; 111. a fixing seat; 112. a fixing groove; 12. a mounting frame; 13. a hydraulic cylinder; 14. a first hot platen; 15. a driving mechanism; 151. a first screw rod; 152. a first driving motor; 153. a slide block; 154. a chute; 155. a push switch; 16. a placing rack; 161. positioning columns; 162. a second hot platen; 163. a spring; 164. a limiting block; 165. a fixed block; 17. a positioning mechanism; 171. a first mounting post; 172. a second screw rod; 173. a second driving motor; 174. a mounting base; 175. an electric telescopic rod; 176. a positioning assembly; 1761. double-end electric push rod; 1762. a first positioning plate; 1763. a second positioning plate; 1764. a mounting block; 18. a feeding and discharging mechanism; 181. a second mounting post; 182. a third screw rod; 183. a third driving motor; 184. a connecting block; 185. a mounting bar; 186. and a conveying roller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-10, the present invention provides a technical solution:
a manufacturing process of a bamboo board with a composite structure comprises the following steps:
S1, preparing bamboo strips: cutting, slicing, rolling or not rolling bamboo in sequence to obtain bamboo bundles and bamboo layers respectively;
S2, carbonizing: preheating the surfaces of the bamboo bundles and the bamboo layers to 80-90 ℃, putting the bamboo bundles and the bamboo layers into a carbonization chamber for carbonization treatment, controlling the carbonization temperature to 150-180 ℃, controlling the humidity to 70-90%, and controlling the carbonization time to 2-3 hours to obtain carbonized bamboo bundles and bamboo layers;
S3, drying: drying the carbonized bamboo bundles and bamboo layers in a drying chamber, and controlling the humidity of the bamboo bundles and bamboo layers to be 10-15% to obtain dried bamboo bundles and bamboo layers;
s4, soaking: placing the dried bamboo bundles and bamboo layers into a wood anti-cracking agent, pressurizing and soaking for 2-5 days, taking out, and drying in the shade in the natural environment at the soaking temperature of 30-40 ℃ to obtain dried bamboo bundles and bamboo layers;
s5, preparing a bamboo bundle layer: arranging the bamboo bundles after drying in the shade, dipping glue and drying for the second time to obtain a rolled bamboo bundle layer;
s6, preparing a bamboo sheet layer: braiding bamboo strips after drying in the shade into a bamboo curtain, dipping glue and drying for the second time to obtain a rolling-free bamboo strip layer;
s7, gluing: feeding the processed rolled bamboo bundle layers and the non-rolled bamboo sheet layers into a gluing machine for gluing, selecting single-sided gluing or double-sided gluing according to requirements, and opening and aging the bamboo laminated timber specification plate after the gluing is finished, wherein the aging time is 2-6 hours;
S8, paving: at least one rolled bamboo bundle layer and at least one non-rolled bamboo sheet layer are stacked in a staggered manner to form a bamboo board semi-finished product, glue is coated on a corresponding contact surface, and the upper surface and/or the lower surface of the bamboo board semi-finished product are/is the rolled bamboo bundle layers;
s9, hot pressing: carrying out hot press forming on the bamboo board semi-finished product by adopting a hot press 1;
s10, cutting: and cutting the formed bamboo board to obtain the bamboo board with the required size.
Specifically, the wood anti-cracking agent consists of the following raw materials in parts by weight: 15-25 parts of rapeseed oil, 20-30 parts of pine oil, 10-30 parts of catalpa oil, 12-30 parts of tung oil, 13-22 parts of palm wax, 10-25 parts of white wax, 1-2.5 parts of methylparaben, 5-15 parts of glycerin, 2-6 parts of tween, 3-8 parts of cobalt iso-octoate, 1-4 parts of chinaberry oil and 1-4 parts of allicin.
Specifically, step S2 further includes screening the bamboo bundles and the bamboo layer after carbonization is completed, and removing unqualified bamboo bundles and bamboo layer.
Specifically, the adhesive adopted in the step S7 is phenolic resin glue solution with 40% of solid content, and the adhesive coating amount is 200-300 g/m 2.
Specifically, the hot press 1 in step S9 includes a bottom plate 11, a mounting frame 12 and a hydraulic cylinder 13, the mounting frame 12 spans and is mounted at the top of the bottom plate 11, the hydraulic cylinder 13 is mounted at the top of the mounting frame 12, the bottom of a piston rod inside the hydraulic cylinder 13 penetrates through the top of the mounting frame 12 and is provided with a first hot press plate 14, a driving mechanism 15 is mounted on the bottom plate 11, two groups of placing frames 16 for placing bamboo boards are mounted on the driving mechanism 15, a space is arranged between the two groups of placing frames 16, the driving mechanism 15 drives the two groups of placing frames 16 to slide and are alternately positioned below the first hot press plate 14, positioning mechanisms 17 are symmetrically arranged at the same sides of two opposite ends of the bottom plate 11, and the positioning mechanisms 17 are used for positioning when the bamboo boards are placed on the placing frames 16, so that the placement of the bamboo boards is more accurate, and the hot press effect is better;
The rack 16 comprises four positioning columns 161 which are arranged in parallel and are arranged in pairs, the positioning columns 161 are connected with the driving mechanism 15, at least two groups of second hot pressing plates 162 are arranged on the outer wall between the four groups of positioning columns 161, a group of second hot pressing plates 162 which are arranged at the bottom are fixedly connected with the positioning columns 161, a plurality of groups of second hot pressing plates 162 which are arranged at the top are slidably connected with the positioning columns 161, springs 163 are sleeved on the outer wall of the positioning column 161 between the two adjacent groups of second hot pressing plates 162, and when in hot pressing, the hydraulic cylinder can drive the first hot pressing plates to descend, so that the uppermost bamboo board is extruded, the second hot pressing plates are extruded to slide along the positioning columns, and therefore, the efficient hot pressing of each layer of bamboo board is realized.
Specifically, four sets of reference columns 161 top threaded connection have stopper 164, are equipped with the interval between stopper 164 and the a set of second hot pressing plate 162 that is located the top, through the stopper, avoid being located the second hot pressing plate that the top drops from the reference column top, threaded connection between stopper and the reference column simultaneously for the stopper can dismantle, thereby can dismantle second hot pressing plate and spring and change, make things convenient for the maintenance of equipment.
Specifically, the driving mechanism 15 includes two first lead screws 151, two first lead screws 151 rotate and connect between the opposite ends of bottom plate 11 inner chamber, and two first lead screws 151 parallel arrangement, the first driving motor 152 with two first lead screws 151 interconnect is installed respectively to bottom plate 11 one end lateral wall, two equal threaded connection of two first lead screw 151 outer walls has two sets of sliders 153, and two sets of sliders 153 on two first lead screws 151 are pairwise set up, two sets of sliders 153 tops of symmetry setting run through bottom plate 11 top and with reference column 161 looks rigid coupling, spout 154 mutually supporting with sliders 153 is seted up at bottom plate 11 top, driving motor rotates and drives first lead screw rotation, thereby drive slider and rack slip, realize that the removal of both sets of racks just equidistance simultaneously, realize "one out one into" high-efficient production, and through lead screw and driving motor's driving mode, make the removal of rack more steady, accurate.
Specifically, the fixed block 165 is symmetrically installed at the middle part of one side surface of the two groups of second hot pressing plates 162 which are located at the lowest part in the two groups of placing frames 16, the fixed seats 111 which are matched with the two groups of fixed blocks 165 are symmetrically arranged at the opposite two ends of the top of the bottom plate 11, the fixed slots 112 which are matched with the fixed blocks 165 are formed in one side surface of the two groups of fixed seats 111 which are close to each other, the push type switches 155 which are matched with the first driving motor 152 are installed on the inner side walls of the fixed slots 112, and when any group of push type switches 155 are in a push state, the first driving motor 152 is in a closed state, the start and stop of the first driving motor are controlled through the structure, the moving accuracy of the two groups of placing frames is guaranteed, the hot pressing and feeding and discharging of the bamboo boards are more accurate, and meanwhile, the structure is convenient to design and production.
Specifically, positioning mechanism 17 includes inside hollow first erection column 171, first erection column 171 installs perpendicularly at the bottom plate 11 top, rotate between first erection column 171 inner chamber top and the bottom and be connected with second lead screw 172, first erection column 171 top install with second lead screw 172 interconnect's second driving motor 173, second lead screw 172 outer wall threaded connection has mount pad 174, mount pad 174 one end runs through first erection column 171 lateral wall and installs electric telescopic handle 175, and electric telescopic handle 175's flexible end is towards rack 16, adjustable locating component 176 is installed to electric telescopic handle 175's flexible end, can drive the second lead screw through the second driving motor and rotate, thereby drive mount pad and electric telescopic handle and go up and down, and then adjust locating component's height, make locating component can fix a position each layer's bamboo board in proper order, thereby guarantee that each layer's bamboo board can be in the best hot pressing position.
Specifically, positioning assembly 176 includes double-end electric putter 1761 and first locating plate 1762, the flexible end at electric telescopic handle 175 is installed to one side of the middle fixed part of double-end electric putter 1761, the other side of the middle fixed part at double-end electric putter 1761 is installed to one side of first locating plate 1762, inside cavity and both ends of first locating plate 1762 are equipped with the opening, first locating plate 1762 inner chamber symmetry sliding connection has two sets of second locating plates 1763, and two sets of second locating plates 1763 pass the opening at first locating plate 1762 both ends respectively, the side symmetry that rack 16 was kept away from to two sets of second locating plates 1763 is provided with installation piece 1764, and the flexible end in both ends of double-end electric putter 1761 respectively with two sets of installation piece 1764 looks rigid coupling, the one end that two sets of second locating plates 1763 kept away from each other is 90 degrees to rack 16 direction, through electric telescopic handle can drive the whole slip of locating assembly, thereby the left and right positions of locating bamboo panel, and double-end electric putter can promote two sets of second locating plates respectively along first locating plate slip, thereby the locating assembly slip, and the length of two sets of locating plates can be adjusted to the position the panel that the whole bamboo panel is the position of the back panel is guaranteed to the position of the bamboo plate that the front end is adjusted, the position of the bamboo plate is located for the whole position of the accuracy after the setting plate is.
Embodiment one:
when the bamboo board is prepared, the preparation method comprises the following steps:
1. preparing bamboo strips: cutting bamboo, slicing, rolling or not rolling to obtain bamboo bundle and bamboo layer respectively,
The preparation method of the bamboo bundle strip specifically comprises the following steps:
1) Cutting bamboo into a plurality of cylindrical bamboo segments; 2) Cutting the bamboo segments into semi-bamboo chips which are approximately arc-shaped; 3) Rolling and fluffing the semi-bamboo chips into longitudinally connected and transversely loose bamboo bundle strips by adopting a bamboo rolling machine;
The preparation of the bamboo layer strip is specifically as follows:
1) Cutting bamboo into a plurality of cylindrical bamboo segments; 2) Cutting the bamboo segments into semi-bamboo chips with arc sections; 3) Secondary splitting is carried out on the half bamboo chips, and the half bamboo chips are cut into radial bamboo chips and/or chordwise bamboo chips in a radial splitting and/or chordwise splitting mode;
2. Carbonizing: preheating the surface temperature of the bamboo bundles and the bamboo layers to 85 ℃, putting the bamboo bundles and the bamboo layers into a carbonization chamber for carbonization treatment, carbonizing the bamboo bundles and the bamboo layers to coffee or black, controlling the carbonization temperature to 160 ℃, controlling the humidity to 80%, controlling the carbonization time to 2.5 hours, obtaining carbonized bamboo bundles and bamboo layers, screening the bamboo bundles and the bamboo layers after carbonization, and removing unqualified bamboo bundles and bamboo layers
3. And (3) drying: drying the carbonized bamboo bundles and bamboo layers in a drying chamber, and controlling the humidity of the bamboo bundles and bamboo layers to be 12% to obtain dried bamboo bundles and bamboo layers;
4. Soaking: the dried bamboo bundles and bamboo layers are put into a wood anti-cracking agent for pressurized soaking for 3 days, then taken out and put into a natural environment for drying in the shade, the soaking temperature is 30 ℃, the bamboo bundles and bamboo layers after drying in the shade are obtained, and the wood anti-cracking agent is composed of the following raw materials in parts by weight: 15 parts of rapeseed oil, 20 parts of pine oil, 10 parts of catalpa oil, 14 parts of tung oil, 15 parts of palm wax, 10 parts of white wax, 1 part of methylparaben, 5 parts of glycerin, 3 parts of tween, 3 parts of cobalt iso-octoate, 2 parts of chinaberry oil and 2 parts of allicin;
5. preparing a bamboo bundle layer: arranging the bamboo bundles after drying in the shade, dipping glue and drying for the second time to obtain a rolled bamboo bundle layer;
6. Preparing a bamboo sheet layer: braiding bamboo strips after drying in the shade into a bamboo curtain, dipping glue and drying for the second time to obtain a rolling-free bamboo strip layer;
7. Gluing: feeding the processed rolled bamboo bundle layers and the non-rolled bamboo sheet layers into a glue spreader for glue spreading, selecting single-sided glue spreading or double-sided glue spreading according to requirements, opening and aging the bamboo laminated timber specification board after glue spreading is finished, wherein the aging time is 4 hours, the glue used for glue spreading is phenolic resin glue solution with the solid content of 40%, and the glue spreading amount is 250/m 2;
8. Paving: at least one rolled bamboo bundle layer and at least one non-rolled bamboo sheet layer are stacked in a staggered manner to form a bamboo board semi-finished product, glue is coated on a corresponding contact surface, and the upper surface and/or the lower surface of the bamboo board semi-finished product are/is the rolled bamboo bundle layers;
9. Hot pressing: carrying out hot press forming on the bamboo board semi-finished product by adopting a hot press 1;
10. Cutting: cutting the formed bamboo board to obtain a bamboo board with a required size;
Wherein the hot pressing process is as follows:
before the hot pressing starts, the two groups of racks 16 are positioned as follows: a group of placing frames 16 are positioned in the loading and unloading areas of the positioning mechanism 17, and a group of placing frames 16 are positioned in the hot-pressing areas in the mounting frame 12;
When the semi-finished bamboo plate is loaded, the positioning assembly 176 is pushed to the left limiting position and the right limiting position of the bamboo plate through the electric telescopic rod 175, then the double-head electric push rod 1761 is started to drive the two groups of second positioning plates 1762 to slide along the first positioning plates 1761, so that the extending amount of the second positioning plates 1762 is adjusted, namely, the front and back positions of the bamboo plate are limited, then the bamboo plate is pushed into the placement rack 16, placement of a layer of bamboo plate is completed, when the upper layer of bamboo plate is placed, the electric telescopic rod 175 is started to retract the positioning assembly 176, the second driving motor 173 is started, the second lead screw 172 is driven to rotate to drive the mounting seat 174 and the positioning assembly 176 to ascend, when the second driving motor 173 is started to ascend to the upper layer, the electric telescopic rod 175 is started, so that the positioning assembly 176 extends into the layer of bamboo plate to be loaded, after the bamboo plate is loaded, the loading is completed, the bamboo plate is reciprocally carried out, and after the loading is completed, the electric telescopic rod 175 is retracted;
Then, two groups of first driving motors 152 are started, the two groups of first driving motors 152 are synchronous motors, the first driving motors 152 rotate to drive the first screw rods 151 to rotate, so that the two groups of placing frames 16 are driven to slide simultaneously and in the same direction, the empty-load placing frames 16 positioned in the mounting frame 12 are pushed out, the fully-loaded placing frames 16 are pushed into the mounting frame 12, meanwhile, in order to ensure the stability of the placing frames 16 in conveying, the output ends of the first driving motors 152 are provided with reducers, so that the placing frames 16 can be stably conveyed, the empty-load placing frames 16 continue to slide, when the fixed blocks 165 are clamped into the fixed grooves 112 and the pressing type switches 155 are pressed, the first driving motors 152 are closed to stop rotating, at the moment, the fully-loaded placing frames 16 positioned in the mounting frame 12 are positioned below the first hot pressing plates 14, the first hot pressing plates 14 and the multiple groups of second hot pressing plates 162 are respectively started, after the fully-loaded placing frames 16 are heated to a certain degree, the hydraulic cylinders 13 push the first hot pressing plates 14 to descend, and press the uppermost bamboo plate semi-finished products, the second hot pressing plates 162 are pressed, the second hot pressing plates 163 are pressed down, the second hot pressing plates are pressed, and the second hot pressing plates are pressed, the pressing processes are restored, and the hot pressing processes are completed, and the pressing processes are completed;
Meanwhile, in the hot pressing process, an operator loads the bamboo board semi-finished product on the empty placing frame 16;
After the hot pressing and loading are completed, the first driving motor 152 is started, and the steering direction of the first driving motor 152 is reversed through the speed reducer, so that the rack 16 after the hot pressing is completed can return to the initial position, the loaded rack 16 without hot pressing is conveyed into the mounting frame 12, the hot pressing operation is performed, in the hot pressing operation process, an operator performs blanking and reloading on the hot pressed bamboo boards, and the hot pressing efficiency of the bamboo boards is greatly improved.
Embodiment two:
The present embodiment is used on the basis of embodiment one:
When the spring 163 on the placement frame 16 ages, fails or the second hot pressing plate 162 is damaged and needs to be replaced, the limiting block 164 at the top of the positioning column 161 is rotated, and then the second hot pressing plate 162 and the spring 163 are sequentially removed for replacement and maintenance.
Embodiment III:
This embodiment is used on the basis of the first or second embodiment:
In order to facilitate loading and unloading of the bamboo boards, a group of feeding and discharging mechanisms 18 are additionally arranged in the loading and unloading areas of the bamboo boards, and the structure is as follows: the feeding and discharging mechanism 18 is arranged opposite to the positioning mechanism 17, the feeding and discharging mechanism 18 comprises two groups of second mounting columns 181 which are vertically arranged on the base 11 and hollow in the interior, a third screw rod 182 is rotationally connected between the top and the bottom of the inner cavity of the second mounting columns 181, a third driving motor 183 matched with the third screw rod 182 is arranged at the top of the second mounting columns 181, connecting blocks 184 are symmetrically and threadedly connected to the outer wall of the third screw rod 182, parallel mounting strips 185 are arranged between the side surfaces of the two groups of connecting blocks 184, one end of each mounting strip 185 is abutted against the second hot pressing plate 162, a plurality of groups of conveying rollers 186 are rotationally connected between the side surfaces of each mounting strip 185, and each group of conveying rollers 186 are connected by a chain wheel and a chain and are driven by a group of motors (the structure is the prior art and the scheme is not described in detail and is not shown in fig. 9);
Meanwhile, in order to facilitate the mutual matching of the feeding and discharging mechanism 18 and the positioning mechanism 17, the second driving motor 173 and the two groups of third driving motors 183 can be set as synchronous motors so that the feeding and discharging mechanism 18 and the positioning mechanism 17 can start and stop synchronously, meanwhile, the second screw rod 172 and the third screw rod 182 are the same in model, and the positioning assembly 176 and the conveying roller 186 are mutually matched (as shown in fig. 9).
The working process is as follows:
During blanking, a second driving motor 173 and a third driving motor 183 are started, a conveying assembly consisting of a positioning assembly 176, a conveying roller 186 and a mounting bar 185 is sequentially slid to the position of a second hot pressing plate 162 of each layer, an electric telescopic rod 175 is started, the electric telescopic rod 175 pushes out a bamboo board through the positioning assembly 176 and enters the conveying assembly, the conveying assembly descends to a certain height after receiving the bamboo board every time, and the bamboo board is conveyed to an external conveying belt through the conveying roller 186 on the conveying assembly;
during feeding, after the bamboo boards are conveyed onto the conveying assembly through the peripheral conveying belt, the bamboo boards are conveyed to the second hot pressing plate 162 of each layer one by one through the conveying assembly, and operators can manually adjust the positions of the boards in real time.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the drawings, merely to facilitate description of the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (5)
1. A manufacturing process of a bamboo board with a composite structure is characterized by comprising the following steps: the manufacturing process comprises the following steps:
S1, preparing bamboo strips: cutting, slicing, rolling or not rolling bamboo in sequence to obtain bamboo bundles and bamboo layers respectively;
S2, carbonizing: preheating the surfaces of the bamboo bundles and the bamboo layers to 80-90 ℃, putting the bamboo bundles and the bamboo layers into a carbonization chamber for carbonization treatment, controlling the carbonization temperature to 150-180 ℃, controlling the humidity to 70-90%, and controlling the carbonization time to 2-3 hours to obtain carbonized bamboo bundles and bamboo layers;
S3, drying: drying the carbonized bamboo bundles and bamboo layers in a drying chamber, and controlling the humidity of the bamboo bundles and bamboo layers to be 10-15% to obtain dried bamboo bundles and bamboo layers;
s4, soaking: placing the dried bamboo bundles and bamboo layers into a wood anti-cracking agent, pressurizing and soaking for 2-5 days, taking out, and drying in the shade in the natural environment at the soaking temperature of 30-40 ℃ to obtain dried bamboo bundles and bamboo layers;
s5, preparing a bamboo bundle layer: arranging the bamboo bundles after drying in the shade, dipping glue and drying for the second time to obtain a rolled bamboo bundle layer;
s6, preparing a bamboo sheet layer: braiding bamboo strips after drying in the shade into a bamboo curtain, dipping glue and drying for the second time to obtain a rolling-free bamboo strip layer;
s7, gluing: feeding the processed rolled bamboo bundle layers and the non-rolled bamboo sheet layers into a gluing machine for gluing, selecting single-sided gluing or double-sided gluing according to requirements, and opening and aging the bamboo laminated timber specification plate after the gluing is finished, wherein the aging time is 2-6 hours;
S8, paving: at least one rolled bamboo bundle layer and at least one non-rolled bamboo sheet layer are stacked in a staggered manner to form a bamboo board semi-finished product, glue is coated on a corresponding contact surface, and the upper surface and/or the lower surface of the bamboo board semi-finished product are/is the rolled bamboo bundle layers;
s9, hot pressing: carrying out hot press forming on the bamboo board semi-finished product by adopting a hot press (1);
The hot press (1) in the step S9 comprises a bottom plate (11), a mounting frame (12) and a hydraulic cylinder (13), wherein the mounting frame (12) is transversely arranged at the top of the bottom plate (11), the hydraulic cylinder (13) is arranged at the top of the mounting frame (12), the bottom of a piston rod inside the hydraulic cylinder (13) penetrates through the top of the mounting frame (12) and is provided with a first hot press plate (14), the bottom plate (11) is provided with a driving mechanism (15), two groups of placing frames (16) for placing bamboo boards are arranged on the driving mechanism (15), a space is reserved between the two groups of placing frames (16), the driving mechanism (15) drives the two groups of placing frames (16) to slide and are alternately arranged below the first hot press plate (14), and positioning mechanisms (17) are symmetrically arranged on the same sides of two opposite ends of the bottom plate (11), and the positioning mechanisms (17) are used for positioning when the bamboo boards are placed on the placing frames (16).
The placement frame (16) comprises four positioning columns (161) which are arranged in parallel and are arranged in pairs, the positioning columns (161) are connected with the driving mechanism (15), at least two groups of second hot pressing plates (162) are arranged on the outer wall between the four groups of positioning columns (161), a group of second hot pressing plates (162) positioned at the bottom is fixedly connected with the positioning columns (161), a plurality of groups of second hot pressing plates (162) positioned above are in sliding connection with the positioning columns (161), and springs (163) are sleeved on the outer walls of the positioning columns (161) between two adjacent groups of second hot pressing plates (162);
the driving mechanism (15) comprises two first screw rods (151), the two first screw rods (151) are rotationally connected between opposite ends of an inner cavity of the bottom plate (11), the two first screw rods (151) are arranged in parallel, first driving motors (152) which are mutually connected with the two first screw rods (151) are respectively arranged on one end side wall of the bottom plate (11), two groups of sliding blocks (153) are connected with the outer walls of the two first screw rods (151) in a threaded manner, the two groups of sliding blocks (153) on the two first screw rods (151) are arranged in a pairwise manner, the tops of the two groups of sliding blocks (153) which are symmetrically arranged penetrate through the top of the bottom plate (11) and are fixedly connected with positioning columns (161), and sliding grooves (154) which are mutually matched with the sliding blocks (153) are formed in the top of the bottom plate (11);
The two groups of the placing frames (16) are characterized in that fixed blocks (165) are symmetrically arranged in the middle of one side surface of the two groups of second hot pressing plates (162) which are located at the lowest part and far away from each other, fixed seats (111) which are matched with the two groups of fixed blocks (165) are symmetrically arranged at the opposite ends of the top of the bottom plate (11), fixed grooves (112) which are matched with the fixed blocks (165) are formed in one side surface of the two groups of fixed seats (111) which is close to each other, push-type switches (155) which are matched with the first driving motor (152) are arranged on the inner side walls of the fixed grooves (112), and when any group of push-type switches (155) are in a push-type state, the first driving motor (152) is in a closed state;
the positioning mechanism (17) comprises a first mounting column (171) with a hollow interior, the first mounting column (171) is vertically arranged at the top of the bottom plate (11), a second screw rod (172) is rotationally connected between the top and the bottom of an inner cavity of the first mounting column (171), a second driving motor (173) which is mutually connected with the second screw rod (172) is arranged at the top of the first mounting column (171), a mounting seat (174) is connected with the outer wall of the second screw rod (172) in a threaded manner, one end of the mounting seat (174) penetrates through the side wall of the first mounting column (171) and is provided with an electric telescopic rod (175), the telescopic end of the electric telescopic rod (175) faces towards the placing rack (16), and an adjustable positioning assembly (176) is arranged at the telescopic end of the electric telescopic rod (175);
the positioning assembly (176) comprises a double-head electric push rod (1761) and a first positioning plate (1762), one side surface of a middle fixing part of the double-head electric push rod (1761) is installed at the telescopic end of the electric telescopic rod (175), one side surface of the first positioning plate (1762) is installed at the other side surface of the middle fixing part of the double-head electric push rod (1761), the inside of the first positioning plate (1762) is hollow, openings are formed in two ends of the first positioning plate (1762), two groups of second positioning plates (1763) are symmetrically connected in a sliding mode in an inner cavity of the first positioning plate (1762), the two groups of second positioning plates (1763) penetrate through the openings in two ends of the first positioning plate (1762), two groups of second positioning plates (1763) are symmetrically provided with mounting blocks (1764) away from one side surface of the rack (16), the telescopic ends of the two ends of the double-head electric push rod (1761) are fixedly connected with the two groups of mounting blocks (1764) respectively, and one ends of the two groups of second positioning plates (1763) away from each other are bent towards the rack (16) by 90 degrees;
s10, cutting: and cutting the formed bamboo board to obtain the bamboo board with the required size.
2. The process for manufacturing the bamboo board with the composite structure according to claim 1, wherein the process comprises the following steps of: the wood anti-cracking agent consists of the following raw materials in parts by weight: 15-25 parts of rapeseed oil, 20-30 parts of pine oil, 10-30 parts of catalpa oil, 12-30 parts of tung oil, 13-22 parts of palm wax, 10-25 parts of white wax, 1-2.5 parts of methylparaben, 5-15 parts of glycerin, 2-6 parts of tween, 3-8 parts of cobalt iso-octoate, 1-4 parts of chinaberry oil and 1-4 parts of allicin.
3. The process for manufacturing the bamboo board with the composite structure according to claim 1, wherein the process comprises the following steps of: and step S2, after carbonization, screening the bamboo bundles and the bamboo layer strips, and removing unqualified bamboo bundles and bamboo layer strips.
4. The process for manufacturing the bamboo board with the composite structure according to claim 1, wherein the process comprises the following steps of: the adhesive adopted in the step S7 is phenolic resin glue solution with the solid content of 40 percent, and the adhesive coating amount is 200-300 g/m < 2 >.
5. The process for manufacturing the bamboo board with the composite structure according to claim 1, wherein the process comprises the following steps of: the tops of the four groups of positioning columns (161) are in threaded connection with limiting blocks (164), and a distance is arranged between each limiting block (164) and a group of second hot pressing plates (162) located at the uppermost part.
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