CN101761751A - Plastic honeycomb core and braiding shape method thereof - Google Patents

Abstract

The present invention discloses a plastic honeycomb core and a braiding shape method thereof, wherein the plastic honeycomb core is formed by the steps of weaving together a flexible fiber and plastic flakes with needles, and then stacking and bonding into a honeycomb core block, and finally spreading the honeycomb core block. The plastic honeycomb core can be widely utilized in various fields of manufacturing laminated structural products.

Description

Plastic honeycomb core and knitting forming method thereof

The invention belongs to composite material sandwich structure and make the field, particularly relate to the method that the braiding of plastic sheet material and flexible fibrous material is manufactured honeycomb core with honeycomb core.

At present, the honeycomb structure composite material has light weight, intensity is big, rigidity is high, have functions such as buffering, shock insulation, insulation, heat insulation and sound insulation, obtain extensive use, it is applied to aerospace field the earliest, be widely used in fields such as building industry, car and boat manufacturing industry, furniture manufacturing, packing and transport service now, in order to alternative metals, plastics, timber, clay brick and highly foamed polystyrene etc.For satisfying the user demand of variety classes honeycomb structure composite material, there to be many kinds of honeycomb cores to be designed, to produce, mainly contain: paper honeycomb core, plastics steel honeycomb core, cotton honeycomb core, aramid fiber honeycomb core, aluminium honeycomb core, various plastic honeycomb core, die mould steel honeycomb core or the like.These honeycomb cores all adopt homogeneous material to produce, paper honeycomb core low price application area is wider, but a variety of causes such as its protection against the tide, waterproof, fire prevention and intensity index have all limited its application area, die mould steel honeycomb core is to adopt the whole piece steel plate to be pressed into behind the ladder type welding or bond together, various aspects of performance such as intensity are all fine, but not flexible suitable plane sandwiched product, this has limited its application in various curved surface use occasions.Aspect of performances such as the compressive strength of other honeycomb core and temperature tolerance are limited, and price is more expensive, and these all are that these honeycomb cores of these particular application such as its obstacle, particularly High Voltage of enlarging application area, high temperature, shaped face are inefficient.

The objective of the invention is in order to overcome the shortcoming of above-mentioned honeycomb core, adopt a kind of forming method that one or more plastic sheet materials are manufactured plastic honeycomb core.The plastic materials that we use is now compared with above-mentioned honeycomb core material therefor has very high compressive strength and resistance to heat, the compressive strength of plastic honeycomb core can design by usage requirement, hard material is of a great variety, as: the steel plate class, the cast iron class, ceramic-like, alloy type, the non-ferrous alloy class, the cement class, the plastics class, bamboo wood class, all hard materials of rock type or the like, performance and price are different, the honeycomb core of different hard material manufacturings has different performances, choose the collocation of one or more and plastic materials by the performance of usage requirement, one chooses suitable compositional system surely, produce price suitable plastic honeycomb core, these plastic honeycomb cores can satisfy the flat clevis layer cellular structure of various material panels, the demand of special-shaped interlayer cellular structure.

The present invention adopts following technical step for achieving the above object: at first one or more plastic sheets of the same a kind of specification that will use are ready to; Select for use the flexible fiber of satisfying the demand to make warp thread; Then use with a kind of plastic sheet or multiple plastic sheet by design sequence laterally or side direction go into latitude by knitting needle and sley point with flexible warp knit become plastic braid; In the rule gluing of the corresponding plastic sheet of plastic braid being pressed four times of sheet width; And make it back and forth to fold into and need the thickness end socket to cut off; Pressurize as required, heating or pressurized, heated be solidified into plastic braid honeycomb pellet; This honeycomb pellet is fit to the uniform thickness plane or curved surface sandwich structure is used.Also can arrange one or more plastic sheets of the different size that will use in proper order by use; Select for use the flexible fiber of satisfying the demand to make warp thread; Then use with a kind of different size plastic sheet or multiple different size plastic sheet by design sequence go into latitude by knitting needle and sley point with flexible warp knit become plastic braid, of the rule gluing of the corresponding plastic sheet of plastic braid by four times of sheet width; And make it back and forth to fold into and need the thickness end socket to cut off; Pressurize as required, heating or pressurized, heated become plastic braid honeycomb pellet; This honeycomb pellet is fit to sandwich structurees such as non-uniform thickness concave and convex plane, inclined-plane or concave-convex curved surface, inclined-plane curved surface to be used.Four times of gluings are meant that sheet width equates with the regular hexagon honeycomb is monolateral, are three times of sheet width if select the monolateral width of regular hexagon honeycomb, and then the gluing width should be 4 * 3=12 doubly, the adjacent layer gluing half-distance that staggers; The adhesive tape width is slightly less than monolateral width.Other pattern honeycomb core can calculate the width rule and the gluing rule of thin slice by design pattern.The honeycomb pellet can directly stretch as modular honeycomb core plate, also can be stretched as continuous honeycomb core through continuous splicing lengthening and use; Widen through lengthening and can satisfy all usage requirements.The width that back and forth is folded into each layer of honeycomb pellet can equate, also can be unequal.Heating process is to determine by the requirement of used adhesive, but as the needs gluing, folding again after the heating.

The invention has the beneficial effects as follows: the performance of plastic materials and lamination coating is all fully played, and has accomplished mutual supplement with each other's advantages, and this has improved utilization efficiency of material widely, also uses for the plastic materials light simultaneously to lay the foundation.Flexible fiber makes it not only can make the plane comb core material facility that can make the curved surface comb core material also is provided.The flexible fiber of whole honeycomb pellet is not cut off, and this has improved the overall performance of honeycomb pellet greatly, some occasion honeycomb core need not spray adhesive curing just directly composite cover become cellular board and use.Can be used as raw material of building materials such as making building wall board, floor, roofer and can reduce the building deadweight greatly, create conditions for reducing support system.Use as various man-made board honeycomb core plates, can reduce consumption greatly, alleviated environment damage simultaneously wood materials.

Claims (10)

1. plastic honeycomb core of the present invention and knitting forming method thereof, its essential characteristic is: at first one or more plastic sheets of the same a kind of specification that will use are ready to; Select for use the flexible fiber of satisfying the demand to make warp thread; Then use with a kind of plastic sheet or multiple plastic sheet by design sequence go into latitude by knitting needle and sley point with flexible warp knit become plastic braid; In the rule gluing of the corresponding plastic sheet of plastic braid being pressed four times of sheet width; And make it back and forth to fold into and need the thickness end socket to cut off; Pressurize as required, heating or pressurized, heated be solidified into plastic braid honeycomb pellet; This honeycomb pellet is launched into honeycomb core and is fit to uniform thickness plane or the use of curved surface honeycomb structure.Also can arrange one or more plastic sheets of the different size that will use in proper order by use; Select for use the flexible fiber of satisfying the demand to make warp thread; Then use with a kind of different size plastic sheet or multiple different size plastic sheet by design sequence go into latitude by knitting needle and sley point with flexible warp knit become plastic braid, the corresponding plastic sheet of plastic braid by the rule gluing of four times of sheet width, and make it back and forth to fold into and need the thickness end socket to cut off; Pressurize as required, heating or pressurized, heated become plastic braid honeycomb pellet; This honeycomb pellet is launched into honeycomb core and is fit to honeycomb structures uses such as non-uniform thickness concave and convex plane, plane, inclined-plane or concave-convex curved surface, inclined-plane curved surface.

2. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: plastic sheet can partly substitute with other hard sheet, and hard sheet is meant the thin slice of steel plate class, cast iron class, ceramic-like, category of glass, alloy type, non-ferrous alloy class, cement class, plastics class, bamboo wood class, rock type or the like all hard materials.As: glass flake, titanium alloy sheet, stainless steel sheets, cast iron sheet, cement bonded sand lodicule, flag, ceramic plate or the like.

3. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: flexible fiber is meant all spendable fibers such as inorfil, organic fiber, artificial fiber, natural plant fibre, animal fibre, steel fiber, non-metallic fiber; As: glass fibre, carbon fiber, aramid fibre, vinylon fibre, nylon fiber, cotton fiber, bastose or the like.

4. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: weaving manner can be all knitting needles by any way lopping and sley point with the flexible fiber mechanism that forms opening cooperate with the mode that makes the plastic sheet side direction or laterally go into latitude can, can be manual, semi-automatic, full-automatic, single station, multi-position or the like; Sley point can be latch needles, crochet hook, groove pin etc.

5. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: the honeycomb core shape can be a regular hexagon, also can be rhombus, rectangle, sinusoidal, trapezoidal and other shape of reinforcing strip Hexagon or the like arranged.

6. according to claim 1,5 described plastic honeycomb core and knitting forming methods thereof, its essential characteristic is: four times of gluings are meant that sheet width equates with the regular hexagon honeycomb is monolateral, if selecting the monolateral width of regular hexagon honeycomb is three times of sheet width, then the gluing width should be 4 * 3=12 doubly, the adjacent layer gluing half-distance that staggers; The adhesive tape width is slightly less than monolateral width; Other pattern honeycomb core can calculate the width rule and the gluing rule of thin slice by design pattern.

7. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: the width that back and forth is folded into each layer of honeycomb pellet can equate, also can be unequal.

8. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: heating process is to determine by the requirement of used adhesive, but as the needs gluing, folding again after the heating.

9. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: can be directly with plastic braid along any direction various honeycomb cores of wanting shape of the bonding one-tenth of gluing one by one.

10. plastic honeycomb core according to claim 1 and knitting forming method thereof, its essential characteristic is: select the different of plastic sheet and flexible fiber for use, select for use the adhesive also can be different, so technology also can be variant.