WO2010078717A1 - Bamboo fabric folding honeycomb board and process for manufacturing thereof - Google Patents

Abstract

A bamboo fabric folding honeycomb board is composed of a bamboo honeycomb core and bamboo fabrics. A process for manufacturing the bamboo fabric folding honeycomb board comprises the following steps: making a weft bamboo-glass cloth glued, folded, cut in strips, spliced into a unit honeycomb core block according to the needs, then making the bamboo flake strips of the unit bamboo honeycomb core block in a vertical state along a texture to form a bamboo honeycomb core, lastly making the bamboo honeycomb core and cladding bamboo fabrics compounded after dipped with glue, heated according to the needs, pressurized to form a unit bamboo fabric folding honeycomb board. The bamboo fabric folding honeycomb board is capable of being applied to the fields of decoration, furniture and the like.

Description

 Bamboo fabric folded honeycomb panel and molding process The invention belongs to the technical field of composite honeycomb sandwich structure, and particularly relates to a molding process for forming a weft bamboo fabric folded honeycomb into a panel.

 The currently known technology is: Honeycomb sandwich composite materials have been the focus of research in the field of composite application development due to a series of advantages such as reasonable structure, light weight, high strength, and material consumption. The skin and core of the sandwich structure have been developed to date. There are many kinds of materials. The commonly used skin materials are aluminum alloy board, titanium alloy board, glass steel plate, bamboo plywood, fiberboard, machine composite board, plastic board, fiberglass cloth, aramid cloth, cotton cloth and paper. Etc., commonly used honeycomb cores are paper honeycomb cores, FRP honeycomb cores, plastic honeycomb cores, aluminum alloy honeycomb cores, aramid honeycomb cores, etc., and various types of honeycomb composite interlayers can be developed by combining each skin with different honeycomb core materials. Structural materials, the most widely used products are mainly paper honeycomb cores, various wood-based panel honeycomb cores, glass steel and FRP honeycomb cores, and aluminum and aluminum honeycomb core sandwich structures.

 Various paper honeycomb core sandwich structural materials are waterproof, have limited moisture resistance, have limited puncture strength, and are limited in application. Because of the high price, the laminated structure materials such as FRP honeycomb, aluminum honeycomb, and ray honeycomb are not widely used. There are also batch-type intermittent composite molding, which is labor intensive and inefficient, but with less equipment investment and flexible size change, it can meet the needs of all single products. How to find a material that combines the advantages of paper-based unit composite molding with good performance, and at the same time the price is not high.

The object of the present invention is: by using: a bamboo fabric as a skin material and a latitudinal bamboo fabric folded honeycomb core composite molding method, using it to make a bamboo fabric honeycomb sandwich or wrapped unit structural composite board, the bamboo used The material has a wide range of raw materials, strong recyclability, strong compressive strength, good reproducibility and low price. It is made of flexible fiber and weaving or weaving with warp and weft strips. It eliminates the disadvantages of different mechanical properties of bamboo strips, and its molding process is simple. The products can be widely used in the field of wood-based panels, building materials, packaging materials and other fields for the demand for sandwich composites. The technique adopted by the present invention to solve the technical problem is as follows: First, a roll of latitudinal bamboo fabric is mounted on the roll upper frame; the front guide roll is used to introduce the latitudinal bamboo glass cloth into the squeegee mechanism. The horizontal coating rubber roller is laterally coated, and the longitudinally stripped strip or the longitudinal groove of the rubberizing roller is coated on the latitudinal bamboo glass cloth with a horizontal strip of strip rubber corresponding to the bamboo strip, and each side of the adhesive cloth is provided. Gluing mechanism to achieve alternating coating on both sides of the weft bamboo glass cloth, the alternate length is equal to the length of the future folding, the alternating point is equal to the folding point, the speed between the weft bamboo glass cloth and the rubberizing roller and the glue coating mechanism Synchronous control is required. It should be ensured that the adjacent side of the folded surface is coated with a strip of bamboo latitude strips that is an integral multiple of the width of the bamboo latitude strip. The width between the strips is 4 times the width of the strip. The rubber strip is staggered, one side of the strip is accurately placed in the middle of the two adjacent strips in the afternoon; the coated latitudinal bamboo glass cloth is heated by the rear guide roller as needed, and then passed through one or more guide rolls. Guided by a fabric folding mechanism to fold it on the folding table according to the length of the design It is realized by the belt cloth mechanism and a set of stacking head clamping mechanisms on the left and right sides to realize the folding and 'positioning. The stacking head clamping mechanism is a pair of front and rear fits to ensure that the S-root bamboo strip is clamped at the same time. The piece is pressed against the folding table, and the pressure is maintained until the other lamination clamping mechanism is depressed, and then loosened, and the next layer of cloth sent by the belt cloth mechanism is executed, and the other side is always clamped. Until the one side is pressed down and then released, the execution of the belt mechanism is carried out with the past layer of cloth. The folding and folding mechanism includes a stacking mechanism, a belt mechanism, and a folding table. Including other auxiliary mechanisms that ensure the effective connection of the various agencies; fold to the thickness of the latitudinal bamboo glass cloth to cut into the honeycomb core folding block, which is removed by the folding table or the conveyor belt on the folding table, and the folding table is allowed Continue to stack the honeycomb core folding block, the honeycomb core folding block is sent to the pressurization or pressurization on demand, and is heated and solidified into the latitudinal honeycomb core original plate; the honeycomb core original plate is cut into bamboo according to the length of the honeycomb height perpendicular to the latitudinal bamboo strip癍 core strip, Core nest is equal to the width of the folded strip length The honeycomb core strip can be used as a honeycomb core block if it meets the requirements for use. Otherwise, it is used as a honeycomb core for being bonded into a honeycomb core. If the width is not enough, it needs to be laterally butted one or more times to the required width. It is a unitary bamboo honeycomb core piece that meets the needs of the length and length; the unitary honeycomb core piece is stretched and stretched into a bamboo honeycomb core which is erected in a bamboo strip; the bamboo honeycomb core is fixed and shaped into a bamboo honeycomb by spraying glue Core plate; unit type bamboo honeycomb core board is coated with two sides of bamboo fabric on the side of the cover to form a honeycomb panel with four sides without edge sealing; the unit type bamboo honeycomb core is coated with two pieces of bamboo fabric on the upper and lower sides as needed. The two sides are covered with four sides to form a honeycomb panel with no edge sealing on both sides; the unit type bamboo honeycomb core board is coated with two pieces of bamboo fabric on the front, back, left and right sides, and the four layers of bamboo fabric are directly folded to form a full-sealed honeycomb panel; It is not required to coat the bamboo honeycomb core board, but directly by the coated bamboo fabric to glue or invade the composite; it is also possible to combine the honeycomb core and the top layer fabric together to infiltrate the rubber; The heating and pressing compound is solidified into a unitary bamboo fabric honeycomb panel; the bamboo honeycomb panel may be a flat or a curved panel. The bamboo honeycomb panel can be used as a partition plate, a countertop, a furniture panel, a partition wall panel, etc.; a framed, molded or connected block can be pressed out of various bamboo honeycomb doors; Board; · It can also directly produce pallets, furniture parts hulls, container boards, compartment panels and so on. 'Bee 3⁄4 core strips can be continuously glued to meet the needs of continuous production of honeycomb panels; honeycomb pellets are machined to meet the needs of |3⁄4 f3⁄4 ^: curved sheeting mechanisms.

 The beneficial effects of the invention are: 'The bamboo fabric dance board greatly reduces the amount of bamboo used, and can be easily realized with various decorative materials, '·· and can be specially shaped by milling, sanding, etc. The bamboo fabric woven by the processed warp and weft bamboo strips is used as the surface coating material of the composite sandwich panel to realize the decorative layer with its own bamboo grain, which realizes the material utilization efficiency: 'to achieve the maximum production efficiency, Very good economic and social benefits

Claims

Rights request 1 . The bamboo fabric folded honeycomb panel and the molding process of the invention are characterized in that: firstly, a roll of latitudinal bamboo fabric is mounted on the roll upper shelf; the weft oriented bamboo glass cloth is introduced into the rubber coating mechanism by the front guiding roller; The transverse coating roller is coated with glue, which is made by using the longitudinal web strip of the rubberizing roller or the horizontal spacing strip glue on the corresponding bamboo strip on the latitudinal bamboo glass cloth, and there is one on each side of the coating cloth. The glue coating mechanism is used to realize the alternately coating on both sides of the weft bamboo glass cloth. The alternate length is equal to the length of the future folding, the alternating point is equal to the folding point, the speed between the weft bamboo glass cloth and the rubber coating roller and the glue coating mechanism Switching needs to realize synchronous control. It should be ensured that the adjacent side of the folding surface is coated with the width of the bamboo weft strips in the horizontal direction along the bamboo weft strips. The width between the strips is 4 times of the width of the strip, and the adjacent side of the strip is coated. The strips are staggered, and a fatigue is accurately placed in the middle of the adjacent strips. The woven weft bamboo glass cloth is heated by the rear guide roller as needed, and then guided by one or more guide rollers. , driven by the fabric folding mechanism to make the design 3⁄4 length reciprocating on the folding table, is The cloth mechanism is matched with a set of stacking head clamping mechanisms on the left and right sides to achieve precise folding and positioning. The stacking head clamping mechanism is a pair of front and rear fits to ensure that the clips are clamped at the front and the back; To the folding table, and maintain the pressure until the other stacking mechanism is pressed and released, the next layer of cloth sent by the belt conveyor is executed, and the other side is always clamped until the side is pressed again. Then release it, and create the next layer of cloth that was carried by the belt mechanism, such as! 3⁄43⁄4 for the cycle folding; 'folding mechanism in addition to the stack clamping mechanism, belt mechanism, folding table also includes its auxiliary mechanism to effectively cooperate with each other; folding to the thickness of the latitude bamboo glass cloth Broken into a honeycomb core folding block, which is separated by a folding table or a conveyor belt on the folding table, and at the same time, the folding table continues to fold the next honeycomb core folding block, and the honeycomb core folding block is sent to pressurization or pressurization on demand, heating The honeycomb core original plate is cut into a bamboo honeycomb core strip by a length perpendicular to the latitudinal bamboo strip according to the height of the honeycomb, and the width of the honeycomb core strip is equal to the folding length; the honeycomb core strip can meet the use requirements. Honeycomb pellets are used, otherwise they are glued into honeycomb cores and used as unit honeycomb cores; if the width is not enough, 'there must be laterally butted one or more times to the desired width, and finally become the leather-type bamboo that meets the needs of the length. Honeycomb pellet; unit honeycomb core block The bamboo honeycomb core is stretched and unfolded into a bamboo strip, and the bamboo honeycomb core is fixed and shaped as a bamboo honeycomb core board according to the need of spray glue. The unit type bamboo honeycomb core board is coated with two sides of bamboo fabric on the upper and lower sides. The cladding becomes a honeycomb panel with four sides without edge sealing; the unitized bamboo honeycomb core panel is coated with two pieces of bamboo fabric on the upper and lower sides, and the two sides are covered with two sides and four sides to form a honeycomb panel with no edge sealing on both sides; unit type bamboo honeycomb core board On-demand ^下^ Right and front glued with two pieces of bamboo fabric surface straightened and folded out side six-faced surface to become a fully sealed honeycomb panel; can be coated with bamboo honeycomb core board, but directly coated with bamboo fabric Glue compounding; also can be 3⁄4 ^: honeycomb core and top layer fabric together invade the rubber and then composite heat, pressure or heat and pressure to form a unitary bamboo fabric honeycomb panel; bamboo honeycomb panel ΐ3⁄4 is a flat plate or Curved panel. Bamboo honeycomb panels can be used as partition plates, countertops, furniture panels, partition panels, etc.; various bamboo honeycomb doors can be pressed out by adding frames, adding molds or adding 'connecting blocks; 'Can also directly make trays, furniture parts, hulls, container boards, car panels, etc. Honeycomb core strips can be continuously glued to meet the needs of continuous honeycomb panels; Honeycomb pellets ΐα: foot 'bump' curved tooth interlayer The needs of the organization. 2. The bamboo fabric folding j3⁄4 ^f nest board and molding process according to claim 1, wherein: the bamboo weft strip processed by the material is woven or non-woven into a weft with a flexible fiber and a bamboo weft strip S. to a bamboo fabric; bamboo fabric may be weft interwoven weft bamboo fabric: knitted fabric ¾ to bamboo, bamboo weft knitted fabric, stitch and weft-inlaid yarns bamboo fabric, felt lining ^ lining ^fabric: ¾ liner • All woven and non-woven weft bamboo fabrics such as film and other bonding and felting. . . ^. . ' . , 3. The bamboo fabric folding bee and the slab and the forming process according to claim 1, wherein: the folding table can be a single-station fixed belt belt or a push plate ft], or can be a moving double Work station or multi-station; can be fixed height, or can be lifted; ^ ρ is flat or inclined. , ^{4. The} folding of bamboo fabric according to claim 1 ^{: a} bee: a slab forming process, wherein: the bamboo honeycomb core can be used with all panel materials, fabrics and films, i.e., with steel sheets and aluminum sheets. , titanium alloy sheet, glass steel sheet, bamboo veneer, bamboo fe plywood, ^: : bamboo fiber board, 'plastic board, inorganic composite board, etc. Various surface layer composites can also be used to produce skinny fabrics with various fabric materials such as fiberglass cloth, aramid cloth, bamboo fabric, bamboo fabric, cotton fabric, etc., as well as various films and papers. A variety of sandwich composites, these sandwich composites can meet the needs of many fields; bamboo honeycomb pellets can be processed to meet the needs of concave and convex mezzanine structures. ' - ⁵ . The bamboo fabric folded honeycomb panel and the molding process according to claim 1 , wherein: the molding process is determined and adjusted according to the selected adhesive, and the corresponding molding process is different according to different types of adhesives; Pre-stack coating, it can also be post-stacking coating Γ Γ to pre-stack heating, or after lamination or simultaneous heating or no heating; can be glued It can be a continuous roller coating of the rubber roller, or it can be a continuous sizing of the glue or ring roller.  The bamboo fabric bridge honeycomb panel and the molding process according to claim 1, wherein the flexible fiber is inorganic fiber, organic fiber, rayon, natural plant fiber, animal fiber, metal fiber, non-metal. All available 3⁄4 ί, 'fibers are mainly made of fiberglass-based bamboo fiberglass. Such as: bamboo glass cloth, latitudinal bamboo glass cloth, woven bamboo glass 3⁄4, · 'weft weave bamboo glass cloth and so on. , 7. The bamboo weave 3⁄4 folding plate and forming process according to claim 1, wherein the pre-stacking glue is also a row of spacer strip width 1⁄2 fS plastic head to synchronous* moving transverse feed. Spraying, longitudinal homing, continuous synchronous movement, lateral return feed, ΐ3⁄4ΐ longitudinal homing, so continuous reciprocating operation is realized, which uses the spray head on the latitudinal bamboo 3⁄4 cloth corresponding to the bamboo strip spray laterally Spacer strip glue, latitudinal bamboo glass cloth and the longitudinal and homing of the glue spraying system, '. 黉3⁄4 reciprocating 迸 speed must be controlled synchronously; 'Similarly, it can also use the circumferential direction of the rubber roller to move the building vertically. For roller coating, longitudinal homing, continuous synchronous movement, lateral return feed roller coating, longitudinal homing, and so on, the continuous roller coating operation is sold, which is the circumferential ruled strip of the rubber roller or The circumferential direction of the groove 3⁄4 latitude 3⁄4 glass cloth is coated with horizontally spaced strip glue, the longitudinal direction of the latitudinal bamboo glass cloth and the roller glue system, and the horizontal ¹ direction reciprocating feed speed needs to be synchronously controlled; Moving the gluing method can be used directly in the folding process, on the actual folding table Spray or apply Glue; the folding system can also be used to complete the gluing operation by other gluing methods.  8. The bamboo fabric folded honeycomb panel and the molding process according to claim 1, wherein: the bamboo weft strip of the bamboo fiber cloth can be partially replaced by one or several other material weft strips; the corresponding honeycomb core can also be Replace with other honeycomb cores. 9. The bamboo fabric folded honeycomb panel and molding process according to claim 1, wherein: the length of each layer of the weft bamboo fabric is equal or different, and the hexagonal honeycomb is single. The calculation of honeycomb folding length for a is: 4na+ _a , two ^ is hexagonal honeycomb; 4na ten 3a, two ends are bonded together to realize lateral butting double joint; _a +2, ^: one-side joint; In order to achieve the edge-sealing effect, the length of the joints can be increased by 2 for each of the joints. The long side is '2a-f4na+3a+2a, so that each side of the compartment has a flat head of 2a width; the single joint 1⁄4j is increased. The length of 2a+4ari+2a realizes the flat head of the sputum layer; a is an integral multiple of the width of the bamboo latitude, n is the natural number required, and the folding length can also be other styles according to the design; four times wide sizing is obtained; The honeycomb shape is a regular hexagon, and the bamboo pattern is kept standing vertically, and the honeycomb shape may be other shapes such as a quadrangle, a diamond, and the like. ·  10. The bamboo fabric ifft honeycomb panel and the forming process according to claim 1, wherein: the process of folding the weft bamboo glass cloth can be done by various mechanisms and is performed by hand; it can be full, automatic ' Semi-automatic, mechanical linkage, 3⁄4 can be 3⁄43⁄43⁄4 ¥