CN210727220U - A notch folding honeycomb bionic core board - Google Patents

Abstract

The utility model discloses a notch-folded honeycomb bionic core board. The notch-folded honeycomb bionic core board comprises at least two first original base belts, and the first original base belt is divided into a plurality of first bonding edges at uniform intervals. A first molding edge is divided between the two adjacent first bonding edges, and a folding groove is opened between the adjacent first molding edges and the first bonding edges in each first original base tape, and the first molding edge is The opening directions of the folding grooves at both ends are opposite, the opening directions of the folding grooves at both ends of the first bonding edge are the same, the opening directions of the folding grooves corresponding to the adjacent first original base belt positions are opposite, and the first adhesive groove corresponding to the adjacent first original base belt positions A plurality of hollow honeycomb cell structures are formed after the joints are bonded at intervals and pulled apart toward both sides. The honeycomb bionic core board has very high lateral strength, good quality stability, and can be suitable for high-strength bearing environments and is widely used.

Description

A notch folding honeycomb bionic core board

technical field

The utility model relates to a honeycomb bionic core board and a manufacturing method thereof, in particular to a notch-folded honeycomb bionic core board.

Background technique

At present, paper honeycomb core boards are mostly used in the market, but the flat pressing and shear strength of paper honeycomb are low, generally only 0.1-0.2MP. Paper honeycombs have problems such as easy water absorption, cementation and collapse. The load-bearing parts of various furniture, wooden doors, interior decoration and other products made of paper honeycomb are prone to problems such as random depressions on the surface, unstable quality and poor durability during use, resulting in many customer complaints. At the same time, the edge core layer of the paper-based (paper tape) honeycomb panel is too soft to be processed by the conventional edge-sealing process. Therefore, it is necessary to develop a new type of honeycomb core panel to meet the market demand.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art, and to provide a notch-folded honeycomb bionic core board with very high lateral strength and good quality stability, which can adopt conventional edge sealing technology and is suitable for high-strength bearing environments. .

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions:

A notch-folded honeycomb bionic core board is characterized by comprising at least two first original base belts, the first original base belts are divided into a plurality of first bonding edges at uniform intervals, and two adjacent first bonding edges A first forming edge is divided between the joint edges, and a folding groove is opened between the adjacent first forming edges and the first bonding edges in each of the first original base tapes, and the two ends of the first forming edges are folded. The opening directions of the grooves are opposite, the opening directions of the folding grooves at both ends of the first bonding edge are the same, the opening directions of the folding grooves corresponding to the adjacent first original base belt positions are opposite, and the adjacent first original base belt positions correspond to the opposite direction. The first bonding edges are bonded at intervals and pulled apart toward both sides to form a plurality of hollow honeycomb cell structures.

As a further improvement of the above technical solution:

The folding grooves are V-shaped grooves, the opening angles of the folding grooves at both ends of each of the first forming edges are equal, and the opening angles of the folding grooves at both ends of each of the first bonding edges are equal or complementary (the sum of the angles is 180°). °), the opening angles of the folding grooves corresponding to the adjacent first original baseband positions are equal or complementary.

The opening angles of all folded grooves are equal.

In the adjacent first forming edges of each of the first original base tapes, the opening angle of the folding groove at the end of one first forming edge is set to α1, and the opening angle of the folding groove at the end of the other first forming edge is set to α2, then α1 and α2 are complementary, and the opening angles of the folded grooves corresponding to the adjacent first original baseband positions are all equal.

The first forming edges of each of the first original base tapes are sequentially set as a group two by two. In each adjacent group, the opening angles of the folding grooves at the ends of the first forming edges of one group are equal, which are set as θ1, and the other group is set to θ1. The opening angles of the folding grooves at the ends of the first forming edges are equal, and both are set to θ2, then θ1 and θ2 are complementary, and the opening angles of the folding grooves corresponding to the adjacent first original baseband positions are all equal.

The first forming edges of each of the first original base tapes are sequentially set as a group in pairs. In each adjacent group, the opening angles of the folding grooves at the ends of the first forming edges of one group are equal, which are set as β1, and the other group is set as β1. The opening angles of the folding grooves at the ends of the first forming edges are equal, and both are set to β2, then β1 and β2 are complementary, and the opening angles of the folding grooves corresponding to the adjacent first original baseband positions are alternately complementary and equal.

The folding groove is a trapezoidal groove. The short side width d2 of the trapezoidal groove is preferably 0.5 mm to 2 mm.

The raw material of the first original base belt includes one or more of wood material, paper material, metal and plastic;

And/or, when the raw material of the first original base tape is a non-paper material, the surface of the first original base tape is provided with a veneer; the paper material itself is formed by laminating multiple layers of paper, so its surface does not need to be pasted. noodle;

And/or, the ratio of the thickness d1 of the folded groove bottom of the first original base tape to the thickness h of the first original base tape is 2-4:15-60; preferably, the groove bottom thickness d1 of the folded groove is 0.2- 0.4mm;

And/or, the folding groove is a V-shaped groove, and the opening angle of the folding groove is 60°, 90° or 120°.

As a general technical concept, the present invention also provides a notch-folded honeycomb bionic core board, comprising at least two first original base belts, the first original base belt is divided into a plurality of first bonding edges at uniform intervals, A first molding edge is divided between the two adjacent first bonding edges, and a folding groove is opened between the adjacent first molding edges and the first bonding edges in each of the first original base tapes, so The opening directions of the folding grooves at both ends of the first forming edge are opposite, the opening directions of the folding grooves at both ends of the first bonding edge are the same, and the opening directions of the folding grooves corresponding to the adjacent first original base belt positions are opposite;

Two second original base tapes are arranged between the adjacent first original base tapes, and the second original base tapes are divided into a plurality of first original base tapes corresponding to the positions of the first bonding edges of the first original base tapes at uniform intervals. Two bonding edges, a second molding edge is divided between two adjacent second bonding edges, the first bonding edge corresponding to the position and the second bonding edge are bonded at intervals, and the two second bonding edges corresponding to the position The bonding edges are bonded at intervals and pulled apart to form a plurality of hollow honeycomb cell structures.

As a further improvement of the above technical solution:

The raw material of the first original base belt includes one or more of wood material, paper material, metal and plastic, and the second original base belt is a paper belt;

And/or, when the raw material of the first original base tape is a non-paper material, the surface of the first original base tape is provided with a veneer; the paper material itself is formed by laminating multiple layers of paper, so its surface does not need to be pasted. noodle;

And/or, the ratio of the thickness d1 of the folded groove bottom of the first original base belt to the thickness h of the first original base belt is 2～4:15～60; preferably, the thickness of the first original base belt is 1.5mm～ 6.0mm, the thickness d1 of the bottom of the folding groove is 0.2-0.4mm;

And/or, the folding groove is a V-shaped groove, and the opening angle of the folding groove is 60°, 90° or 120°.

In this utility model, when the raw material of the first original base belt is made of non-cardboard, such as wood material, plastic, etc., in order to prevent the defects caused by insufficient toughness, after the raw material board is double-coated with glue, a 0.1-0.4mm thick material can be used. The film material is veneered, and the film material is preferably kraft paper, PVC film or veneer.

In the present invention, in order to prevent the defects of the first original base belt due to insufficient toughness, the notch can be selectively coated with glue when milling the folded groove (especially the V-shaped groove).

In the present utility model, since the folded grooves are milled and the chipping is not easy to be removed, in order to facilitate the folding and forming of the first original base belt, the actual opening angle in production can be slightly larger than the theoretical angle by 5° to 10° (preferably V-shaped grooves). When the opening angles of the folding grooves are not all equal, each angle can be slightly increased, or determined according to the actual situation), or, milling the folding grooves into a trapezoidal groove, with a width of 0.5-2.0mm reserved at the bottom of the folding grooves the platform (that is, the length of the short side of the trapezoid).

In the present invention, the adopted raw material board can be artificial board such as plywood, medium and high density fiberboard or particle board.

Compared with the prior art, the advantages of the present utility model are:

The transverse strength of the notch-folded honeycomb bionic core board of the utility model is very high, wherein the flat compressive strength and shear strength can reach 1MPa-15MPa, and the quality stability is good, and can be used for the load-bearing parts of general industrial products such as furniture. , and can also be used in high-strength bearing environments such as indoor wall panels.

For the notch-folded honeycomb bionic core board of the present invention, boards of different materials and thicknesses can be selected as required, and the upper and lower surfaces of the board (preferably a wooden board) are milled at a certain distance (determining the side length of the polygon) at a certain angle (determining the length of the sides). Stretching the angled folds of the polygon) to achieve the folding of the notch. Edge-to-edge gluing is performed at a certain number of edges, and the notches are close to each other after stretching to form hollow honeycomb structures of different shapes such as hexagons, squares, rectangles, concave, triangles, and combinations. The required product thickness is transversely sawed and cut into a honeycomb bionic core board. The honeycomb bionic core board formed by folding the folded groove can be used as the core layer of the sandwich board or as a wall-mounted shelf, which greatly improves the product richness and is widely used.

Description of drawings

1 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 1 of the present invention.

FIG. 2 is a schematic top-view structural diagram of a notch-folded honeycomb bionic core board in Embodiment 1 of the present invention.

3 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in the second embodiment of the present invention.

FIG. 4 is a schematic top-view structural diagram of a notch-folded honeycomb bionic core board in Embodiment 2 of the present invention.

5 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 3 of the present invention.

FIG. 6 is a schematic top-view structural diagram of a notch-folded honeycomb bionic core board in Embodiment 3 of the present invention.

7 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 4 of the present invention.

8 is a schematic top view of the structure of the notch-folded honeycomb bionic core board in Embodiment 4 of the present invention.

9 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 5 of the present invention.

FIG. 10 is a schematic top-view structural diagram of a notch-folded honeycomb bionic core board in Embodiment 5 of the present invention.

11 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 6 of the present invention.

12 is a schematic top view of the structure of the notch-folded honeycomb bionic core board in Embodiment 6 of the present invention.

13 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 7 of the present invention.

14 is a schematic top view of the structure of the notch-folded honeycomb bionic core board in Embodiment 7 of the present invention.

15 is a schematic front view of the structure of the first original baseband of the notch-folded honeycomb bionic core board in Embodiment 8 of the present invention.

16 is a schematic top-view structural diagram of a notch-folded honeycomb bionic core board in Embodiment 8 of the present invention.

17 is a schematic top view of the structure of the notch-folded honeycomb bionic core board in Embodiment 9 of the present invention.

FIG. 18 is an enlarged schematic view of the structure at A in FIG. 1 .

FIG. 19 is a schematic structural diagram of the folding groove of the notch-folded honeycomb bionic core board in Embodiment 10 of the present invention.

illustration:

1. The first original base tape; 11. The first bonding edge; 111. The folding groove; 112. The first bonding area; 12. The first forming edge; 13. The first regular hexagonal hole; 16, the first concave hexagonal hole; 17, the equilateral triangle hole; 18, the first arrow-shaped hexagonal hole; 19, the second arrow-shaped hexagonal hole; 2, the second original base band; 21. The second bonding edge; 22. The second molding edge; 3. The convex hexagonal hole; 4. The third arrow-shaped hexagonal hole; 5. The second concave hexagonal hole; 6. The fourth Arrow-shaped hexagonal hole; 7. The first quadrilateral hole; 8. The second quadrilateral hole 8; 9. The third concave hexagonal hole; 10. The second regular hexagonal hole.

Detailed ways

The present utility model will be further described below with reference to the accompanying drawings and specific preferred embodiments, but the protection scope of the present utility model is not limited thereby.

The materials and instruments used in the following examples are commercially available.

Example 1:

As shown in FIG. 1 and FIG. 2 , the notch-folded honeycomb bionic core board in this embodiment includes at least two first original base tapes 1 , and the first original base tape 1 is divided into a plurality of first adhesive edges 11 at uniform intervals. A first molding edge 12 is divided between two adjacent first bonding edges 11 , and a fold is opened between the adjacent first molding edge 12 and the first bonding edge 11 in each first original base tape 1 . In the groove 111, the opening directions of the folding grooves 111 at both ends of the first forming edge 12 are opposite, the opening directions of the folding grooves 111 at both ends of the first bonding edge 11 are the same, and the opening directions of the folding grooves 111 corresponding to the adjacent first original base tape 1 are opposite. The first adhesive edges 11 corresponding to the adjacent first original base tapes 1 are bonded and pulled apart to form a honeycomb structure with a plurality of hollow honeycomb cells. Specifically, the opening angles of each folding groove 111 are equal, and both sides of each folding groove 111 are equal, that is, all the first bonding sides 11 and the first forming sides 12 have the same length, and the first bonding sides 11 and the first A first bonding area 112 is provided on a plane opposite to the opening direction of the folding groove 111 at the end of the bonding edge 11, and the first bonding area 112 corresponding to the position of the adjacent first original base tape 1 is bonded and pulled toward both sides. After opening, make the notches close to each other to form a honeycomb structure with a plurality of polygonal unit holes, that is, the hollow honeycomb cells are polygonal unit holes. The notch-folded honeycomb bionic core board of this structure has high lateral strength (including flat compressive strength and shear strength) and good quality stability.

In this embodiment, the folding groove 111 is a V-shaped groove.

In this embodiment, the opening angles of all the folding grooves 111 are set as α, α=60°, the lengths of all the first bonding edges 11 are set as L1, and the lengths of all the first forming edges 12 are set as L2, L1= L2, the first bonding edges 11 corresponding to the positions of the adjacent first original base tapes 1 are bonded and pulled away from both sides to form a honeycomb structure including a plurality of first regular hexagonal holes 13, wherein the adjacent The opposite sides of the first regular hexagonal hole 13 are closely connected. The notch-folded honeycomb bionic core board of the structure has high lateral strength and good quality stability.

In this embodiment, the first original base belt 1 is a wooden original base belt, which further increases the flat pressure, shear strength and quality stability of the notch-folded honeycomb bionic core board.

In this embodiment, as shown in FIG. 18 , the groove bottom thickness d1 of the folding groove 111 of the first original base tape 1 is 0.2 mm, and the thickness h of the first original base tape 1 is 3 mm.

A method for manufacturing a notch-folded honeycomb bionic core board of the present embodiment includes the following steps:

S1: Veneer treatment: The wooden board is glued on both sides, and then veneered with kraft paper. After being pressed by a press, the first original base tape is made. The thickness of the kraft paper is preferably 0.1-0.4mm, and 0.2mm is adopted in this embodiment.

S2: Dividing unit: stack the first original base tapes 1 in sequence, take the end as the starting point, and divide a plurality of first bonding edges 11 on the first original base tape 1 at uniform intervals, and adjacent two first bonding edges 11 A first forming edge 12 is divided between the joint edges 11 .

S3: Milling the folded grooves: The folded grooves 111 are milled with a forming milling cutter between the adjacent first forming sides 12 and the first bonding sides 11 in each of the first original base tapes 1, so that the folded grooves at both ends of the first forming sides 12 are formed. The opening directions of 111 are opposite, the opening directions of the folding grooves 111 at both ends of the first bonding edge 11 are the same, and the opening directions of the folding grooves 111 corresponding to the adjacent first base tape 1 positions are opposite.

S4: gluing and bonding: selectively gluing the first bonding edges 11 on each of the first original base tapes 1, so that the first bonding edges 11 corresponding to the adjacent first original base tapes 1 can be glued at intervals Then, in this embodiment, a gluing area is set on the first bonding edge 11 of each first original base tape 1. Specifically, the first bonding edge 11 is folded with the end of the first bonding edge 11. The first bonding area 112 is set on the plane opposite to the opening direction of the groove 111 (also referred to as the bottom surface of the groove), and the first bonding area 112 corresponding to the position of the adjacent first original base tape 1 is bonded. A gluing area is set on the first bonding edge 11 of the first original base tape 1 with odd digits or the first original base tape 1 with even digits, and the two adjacent first bonding edges 11 on the first original base tape 1 are glued The zone is on the opposite side.

S5: Glue pressing: Glue the bonded core board to make the bonding firm.

S6: Forming: Saw the glue-pressed core board to the required height to obtain a strip-shaped core material. After sanding, stretch it toward both sides to make the notches close to each other to form a plurality of hollow honeycomb cells structure to obtain a notch-folded honeycomb bionic core board.

In this manufacturing method, if the raw material plate is thick, it can be processed into a required thickness by a thin plate process, and then the surface is veneered and the unit is divided. Finally, the conventional edge sealing process can be used.

In the manufacturing method, the first original base tape 1 is a wooden original base tape, the thickness h of the first original base tape 1 is 3 mm, and the groove bottom thickness d1 of the folding groove 111 is 0.2 mm, which can be 0.2-0.4 mm. The opening angle α of each folding groove 111 is 60°, and the length L1 of all the first bonding sides 11 is equal to the length L2 of all the first forming sides 12, which is 40 mm in this embodiment, and a plurality of first regular hexagonal sides are obtained. The honeycomb structure of the shaped holes 13. The transverse flat compression and transverse shear strength of the sandwich panel made of the 2.8 mm thick medium density fiberboard in this embodiment are all greater than 13 MPa.

In the actual production process, in order to facilitate the folding and forming of the first original base tape 1, the actual opening angle may be slightly larger than the theoretical angle by 5°-10°.

Example 2:

As shown in FIGS. 3 and 4 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1, and the only difference is that in this embodiment, the opening angles α of all the folding grooves 111 are equal , α=90°, and the lengths of all the first bonding edges 11 are set as L1, and the lengths of all the first forming edges 12 are set as L2, L1=L2, so that the adjacent first original base tapes 1 correspond to the first The bonding edge 11 is bonded and pulled open to both sides to form a honeycomb structure with a plurality of rectangular holes 14, that is, the hollow honeycomb cells are rectangular holes 14, wherein the adjacent rectangular holes 14 are closely connected on opposite sides. . The notch-folded honeycomb bionic core board of the structure is flat pressed, has high shear strength and good quality stability, and the transverse flat pressure and transverse shear strength are both greater than 13MPa.

Example 3:

As shown in FIG. 5 and FIG. 6 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1. The only difference is that in this embodiment, the opening angles α of all folding grooves 111 are equal. , α=90°, and the lengths of all the first bonding sides 11 are set as L1, and the lengths of all the first forming sides 12 are set as L2, L1=2×L2, so that the adjacent first base tape 1 positions correspond to The first bonding edge 11 is bonded and pulled away from both sides to form a honeycomb structure with a plurality of square holes 15, that is, the hollow honeycomb cell is a square hole 15, wherein the adjacent square holes 15 are opposite to each other. Tight connection. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has both horizontal flat pressing and transverse shear strength greater than 13MPa.

Example 4:

As shown in FIG. 7 and FIG. 8 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1, and the only difference is that in this embodiment, the opening angles α of all folding grooves 111 are equal , α=120°, and the lengths of all the first bonding sides 11 are set as L1, and the lengths of all the first forming sides 12 are set as L2, L1>L2+3 ^1/2 h (usually L1 is not greater than 500mm), so that The first adhesive edges 11 corresponding to the adjacent first original base tapes 1 are bonded and pulled apart to form a honeycomb structure with a plurality of first concave hexagonal holes 16, that is, a hollow honeycomb cell. The element is the first concave hexagonal hole 16, wherein the adjacent first concave hexagonal holes 16 are closely connected on opposite sides, and the first concave hexagonal hole 16 has a pair of diagonal corners that are equal in size and larger than 180°. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has both horizontal flat pressing and transverse shear strength greater than 13MPa.

Example 5:

As shown in FIG. 9 and FIG. 10 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1, and the only difference is that in this embodiment, the opening angles α of all folding grooves 111 are equal , α=120°, and the lengths of all the first bonding edges 11 are set as L1, and the lengths of all the first forming edges 12 are set as L2, L1= L2+3 ^1/2 h, so that the adjacent first original base tapes The first bonding edge 11 corresponding to the position 1 is bonded and pulled away from both sides to form a honeycomb structure with a plurality of equilateral triangular holes 17, that is, the hollow honeycomb cells are equilateral triangular holes 17. The opposite sides of the equilateral triangular holes 17 are closely connected. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has both horizontal flat pressing and transverse shear strength greater than 13MPa.

Example 6:

As shown in FIGS. 11 and 12 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1, and the only difference is that in this embodiment, the adjacent first base tapes 1 In the first forming side 12, the opening angle α1 of the folding groove 111 at the end of one first forming side 12 is complementary to the opening angle α2 of the folding groove 111 at the end of the other first forming side 12, that is, α1+α2=180° , where α1=60°, α2=120°, the opening angles of the folding grooves 111 corresponding to the positions of the adjacent first original base tapes 1 are equal, and the lengths of all the first bonding edges 11 are set as L1, and all the first The length of the forming edge 12 is set to L2, and the lengths of L1 and L2 are equal (usually refers to the length of the middle position of the thickness, also referred to as the center line length), so that the first bonding edge 11 corresponding to the position of the adjacent first original base tape 1 is bonded , and pulled to both sides to form a honeycomb structure with multiple rows of first arrow-shaped hexagonal holes 18 and multiple rows of second arrow-shaped hexagonal holes 19, that is, the hollow honeycomb cells are the first arrow-shaped hexagonal cells. The square hole 18 or the second arrow-shaped hexagonal hole 19, wherein the first arrow-shaped hexagonal hole 18 and the second arrow-shaped hexagonal hole 19 both have a pair of diagonal corners, and one of the diagonal corners More than 180°, the other angle is less than 180°, and the sum is equal to 360°, the orientation of the first arrow-shaped hexagonal hole 18 and the second arrow-shaped hexagonal hole 19 are opposite, and the opposite sides of the adjacent polygonal holes are closely connected , and each row of first arrow-shaped hexagonal holes 18 and each row of second arrow-shaped hexagonal holes 19 are alternately arranged with first arrow-shaped hexagonal holes. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has both horizontal flat pressing and transverse shear strength greater than 13MPa.

Example 7:

As shown in FIGS. 13 and 14 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1, and the only difference is that in this embodiment, the first The forming edges 12 are set as a group two by two. In each adjacent group, the opening angles of the folding grooves 111 at the ends of the first forming edges 12 in one group are θ1, and the opening angles at the ends of the first forming edges 12 in the other group are θ1. The opening angles of the folding grooves 111 are all θ2, and θ1 and θ2 are complementary, that is, θ1+θ2=180°, where θ1=60° and θ2=120°. The opening angles are all equal, and the lengths of all the first bonding edges 11 are set as L1, the lengths of all the first molding edges 12 are set as L2, the lengths of L1 and L2 are equal (referring to the length in the middle of the thickness), L1>L2+ 3 ^1/2 h, so that the first bonding edges 11 corresponding to the adjacent first original base tapes 1 are bonded and pulled away from both sides to form a honeycomb structure with a combination of polymorphic hexagonal holes. The hexagonal hole combination includes multiple rows of convex hexagonal holes 3, multiple rows of third arrow-shaped hexagonal holes 4, multiple rows of second concave hexagonal holes 5 and multiple rows of fourth arrow-shaped hexagonal holes 6, that is, the hollow honeycomb cell is the convex hexagonal hole 3, the third arrow-shaped hexagonal hole 4, the second concave hexagonal hole 5 or the fourth arrow-shaped hexagonal hole 6, wherein the first The three-arrow-shaped hexagonal hole 4 and the fourth arrow-shaped hexagonal hole 6 each have a pair of diagonal corners, one of which is greater than 180° and the other is less than 180°, and the sum is equal to 360°, The direction of the third arrow-shaped hexagonal hole 4 and the fourth arrow-shaped hexagonal hole 6 are opposite, the inner angle of the convex hexagonal hole 3 is greater than 90°, and the second concave hexagonal hole 5 has a pair of diagonal corners The size is equal and greater than 180°, the adjacent polygonal holes are closely connected on opposite sides, and a row of convex hexagonal holes 3, a row of third arrow-shaped hexagonal holes 4, a row of second concave hexagonal holes 5 and A row of fourth arrow-shaped hexagonal holes 6 are sequentially spliced to form a periodic unit, and each periodic unit is sequentially spliced to form the notch-folded honeycomb bionic core board. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has both horizontal flat pressing and transverse shear strength greater than 13MPa.

Example 8:

As shown in FIGS. 15 and 16 , the structure and manufacturing method of the notch-folded honeycomb bionic core board in this embodiment are basically the same as those in Embodiment 1. The only difference is that in this embodiment, the first The forming edges 12 are set as a group two by two in turn. In each adjacent group, the opening angles of the folding grooves 111 at the ends of the first forming edges 12 in one group are all β1, and the opening angles at the ends of the first forming edges 12 in the other group are β1. The opening angles of the folded grooves 111 are all β2, and β1 and β2 are complementary, that is, β1+β2=180°, where β1=120°, β2=60°, and the folded grooves 111 corresponding to the adjacent first baseband 1 are opened in sequence The angles are alternately complementary and equal (for example, the four first original basebands 1 arranged in sequence are set as the first first original baseband 1, the second first original baseband 1, the third first original baseband 1 and the fourth The first original base belt 1, then the opening angles of the folded grooves 111 corresponding to the first first original base belt 1 and the second first original base belt 1 are complementary, and the second first original base belt 1 and the third first original base belt 1 The opening angles of the corresponding folding grooves 111 are equal, the opening angles of the folding grooves 111 corresponding to the third first original base tape 1 and the fourth first original base tape 1 are complementary), and the lengths of all the first bonding edges 11 are set as L1 , the lengths of all the first forming edges 12 are set to L2, the lengths of the midlines of L1 and L2 are equal, and L1>L2+ ^{3 1/2} h, so that the first bonding edges 11 corresponding to the adjacent first original base tapes 1 are glued The hollow honeycomb cell structure is formed by connecting and pulling open to both sides to form a combination of polymorphic hexagonal holes. The second quadrilateral hole 8 and the third concave hexagonal hole 9, that is, the hollow honeycomb cells are the convex hexagonal hole 3, the first quadrilateral hole 7, the second quadrilateral hole 8 or the third concave hole Hexagonal holes 9, wherein, the inner angles of the convex hexagonal holes 3 are all greater than 90°, and the third concave hexagonal holes 9 have a pair of diagonal angles of equal size and greater than 180°, and the convex hexagonal holes 3 and the third concave hexagonal holes 9 are alternately connected to form a plurality of first-type polygon combination columns, the first flat quadrilateral holes 7 and the second flat-shaped quadrilateral holes 8 are alternately connected to form a plurality of second-type polygon combination columns, and the second type of polygon combination columns are alternately connected. The adjacent first quadrilateral holes 7 and second quadrilateral holes 8 in the polygon combination column are symmetrically arranged, and the first type polygon combination column and the second type polygon combination column are alternately and staggered to form a plurality of hollow honeycomb cell structures. The notch-folded honeycomb bionic core board of this structure is flat pressed, has high shear strength and good quality stability, and the cell structure made of 2.8mm thick medium density fiberboard has transverse flat pressing and transverse shear strength greater than 13MPa.

Example 9:

As shown in FIG. 17 , the notch-folded honeycomb bionic core board of this embodiment includes at least two first original base tapes 1 , and the first original base tape 1 is divided into a plurality of first bonding edges 11 at uniform intervals, and adjacent ones A first molding edge 12 is divided between the two first bonding edges 11 , and a folding groove 111 is opened between the adjacent first molding edge 12 and the first bonding edge 11 in each first original base tape 1 . The opening directions of the folding grooves 111 at both ends of the first forming edge 12 are opposite, the opening directions of the folding grooves 111 at both ends of the first bonding edge 11 are the same, and the opening directions of the folding grooves 111 corresponding to the adjacent first base tape 1 are opposite. Two second original base tapes 2 are arranged between adjacent first original base tapes 1 , and the second original base tapes 2 are divided into a plurality of second original base tapes corresponding to the positions of the first bonding edges 11 of the first original base tapes 1 at uniform intervals. Bonding edge 21, a second molding edge 22 is divided between two adjacent second bonding edges 21, the first bonding edge 11 corresponding to the position is bonded with the second bonding edge 21, and the two corresponding positions are The second bonding edge 21 is bonded and pulled away from both sides to form a honeycomb structure with a plurality of hollow honeycomb cells, and the hollow honeycomb cells are the second regular hexagonal holes 10 .

In this embodiment, the opening angles of all the folding grooves 111 are equal, set as α, α=60°, the lengths of all the first adhesive sides 11 and the second adhesive sides 21 are equal, and are set as L1, and all the first adhesive sides 11 and the second adhesive sides 21 have the same length. The lengths of the molding edge 12 and the second molding edge 22 are equal, and both are set to L2, then L1=L2, so that the first bonding edge 11 and the second bonding edge 21 corresponding to the positions are bonded, and the two second bonding edges corresponding to the positions are bonded. The bonding edges 21 are bonded and pulled apart to form a honeycomb structure including a plurality of second regular hexagonal holes 10 , wherein the adjacent second regular hexagonal holes 10 are closely connected on opposite sides. The notch-folded honeycomb bionic core board of the structure has high lateral strength and good quality stability.

In this embodiment, the first original base tape 1 is a wooden original base tape, and the second original base tape 2 is an ordinary paper tape.

In this embodiment, the groove bottom thickness d1 of the folding groove 111 of the first original base tape 1 is 0.2 mm, and the thickness h of the first original base tape 1 is 3 mm.

A method for manufacturing a notch-folded honeycomb bionic core board of the present embodiment includes the following steps:

S1: Veneer treatment: The wooden board is glued on both sides, and then veneered with kraft paper. After being pressed by a press, the first original base tape is made. The thickness of the kraft paper is preferably 0.1-0.4mm, and 0.2mm is adopted in this embodiment.

S2: Dividing unit: stack the first original base tapes 1 in sequence, take the end as the starting point, and divide a plurality of first bonding edges 11 on the first original base tape 1 at uniform intervals, and adjacent two first bonding edges 11 A first forming edge 12 is divided between the joint edges 11, and then two second original base strips 2 are arranged between the adjacent first original base strips 1, and the second original base strips 2 are divided into a plurality of strips with uniform intervals. The second bonding edge 21 corresponding to the position of the first bonding edge 11 of the first original base tape 1 is divided into a second molding edge 22 between two adjacent second bonding edges 21 .

S3: Milling the folded grooves: The folded grooves 111 are milled with a forming milling cutter between the adjacent first forming sides 12 and the first bonding sides 11 in each of the first original base tapes 1, so that the folded grooves at both ends of the first forming sides 12 are formed. The opening directions of 111 are opposite, the opening directions of the folding grooves 111 at both ends of the first bonding edge 11 are the same, and the opening directions of the folding grooves 111 corresponding to the adjacent first base tape 1 positions are opposite.

S4: gluing and bonding: selectively gluing the first bonding edge 11 on each first original base tape 1, selectively gluing the second bonding edge 21 on each second original base tape 2, The first bonding side 11 corresponding to the position is bonded to the second bonding side 21 at intervals, and the two second bonding sides 21 corresponding to the position are bonded at intervals. In this embodiment, on the first bonding edge 11 of the first original base tape 1 , a plane (also called the bottom surface of the slot) opposite to the opening direction of the folding groove 111 at the end of the first bonding edge 11 is provided with a In the bonding area 112, the first bonding edge 11 corresponding to the position is bonded to the second bonding edge 21, and the back of the second bonding edge 21 opposite to the opening of the folding groove 111 in the first bonding edge 11 is glued to make the The two second bonding edges 21 corresponding to the positions are bonded.

S5: Glue pressing: Glue the bonded core board to make the bonding firm.

S6: Forming: Saw the glue-pressed core board to the required height to obtain a strip-shaped core material. After sanding, stretch it toward both sides to make the notches close to each other to form a plurality of hollow honeycomb cells structure to obtain a notch-folded honeycomb bionic core board.

In this manufacturing method, if the raw material plate is thick, it can be processed into a required thickness by a thin plate process, and then the surface is veneered and the unit is divided.

In the manufacturing method, the first original base tape 1 is a wooden original base tape, the thickness h of the first original base tape 1 is 3 mm, and the groove bottom thickness d1 of the folding groove 111 is 0.2 mm, which can be 0.2-0.4 mm. The opening angle α of each folding groove 111 is 60°. The second original base tape 2 is an ordinary paper original base tape. The lengths L1 of all the first bonding sides 11 and the second bonding sides 21 are equal to the lengths L2 of all the first forming sides 12 and the second forming sides 22 , which are 30 mm in this embodiment. The honeycomb structure of the shaped holes 10. The transverse flat compression and transverse shear strength of the sandwich panel made of the 2.8 mm thick medium density fiberboard in this embodiment are all greater than 1.0 MPa.

Example 10:

A notch-folded honeycomb bionic core board of this embodiment has basically the same structure and manufacturing method as Embodiment 1, the only difference is that as shown in FIG. 19 , the folding groove 111 of this embodiment is a trapezoidal groove. The angle α of the side wall of the trapezoidal groove is 60°, the thickness of the bottom of the trapezoidal groove is 0.2mm, and a platform of 0.5-2mm is reserved (that is, the thickness of the short side of the trapezoid is d2). In the actual processing process, since the wood cutting produced by the milling process may cause the V-shaped groove to be too tight when folded, the trapezoidal groove can be used to avoid this situation.

To sum up, it can be seen that the transverse strength of the notch-folded honeycomb bionic core board of the present invention is very high. To the load-bearing parts of general industrial products such as furniture, it can also be used in high-strength load-bearing environments such as indoor wall panels.

The above descriptions are only preferred embodiments of the present invention, and do not limit the present invention in any form. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, without departing from the spirit and technical solutions of the present invention, can make many possible changes and modifications to the technical solutions of the present invention by utilizing the methods and technical contents disclosed above. Equivalent embodiments with equivalent modifications. Therefore, any simple modifications, equivalent replacements, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solutions of the present invention still belong to the protection of the technical solutions of the present invention. within the range.

Claims (10)

1. The utility model provides a bionical core of honeycomb is folded to notch which characterized in that: the novel honeycomb structure comprises at least two first original base bands (1), wherein the first original base bands (1) are uniformly divided into a plurality of first bonding edges (11) at intervals, a first forming edge (12) is divided between every two adjacent first bonding edges (11), folding grooves (111) are formed in the first original base bands (1) between the adjacent first forming edges (12) and the first bonding edges (11), the opening directions of the folding grooves (111) at the two ends of the first forming edges (12) are opposite, the opening directions of the folding grooves (111) at the two ends of the first bonding edges (11) are the same, the opening directions of the folding grooves (111) corresponding to the positions of the adjacent first original base bands (1) are opposite, and the adjacent first bonding edges (11) corresponding to the positions of the first original base bands (1) are bonded at intervals and are pulled towards the two sides to form a plurality of hollow honeycomb structures.

2. The notch-folded honeycomb bionic core plate of claim 1, wherein: the folding grooves (111) are V-shaped grooves, the opening angles of the folding grooves (111) at the two ends of each first forming edge (12) are equal, the opening angles of the folding grooves (111) at the two ends of each first bonding edge (11) are equal or complementary, and the opening angles of the folding grooves (111) corresponding to the positions of the adjacent first original base bands (1) are equal or complementary.

3. The notch-folded honeycomb bionic core plate of claim 2, wherein: the opening angles of all the folding grooves (111) are equal.

4. The notch folding honeycomb bionic core board according to claim 2, wherein in the adjacent first forming edges (12) of each first raw base strip (1), the opening angle of the folding groove (111) at the end of one first forming edge (12) is α 1, the opening angle of the folding groove (111) at the end of the other first forming edge (12) is α 2, α 1 is complementary to α 2, and the opening angles of the folding grooves (111) corresponding to the positions of the adjacent first raw base strips (1) are all equal.

5. The notch-folded honeycomb bionic core plate of claim 2, wherein: the first forming edges (12) of the first original base bands (1) are arranged in pairs in sequence to form a group, in each adjacent group, the opening angles of the folding grooves (111) at the ends of the first forming edges (12) of one group are equal and are all set to be theta 1, the opening angles of the folding grooves (111) at the ends of the first forming edges (12) of the other group are equal and are all set to be theta 2, then the theta 1 is complementary with the theta 2, and the opening angles of the folding grooves (111) corresponding to the positions of the adjacent first original base bands (1) are all equal.

6. The notch folding honeycomb bionic core board according to claim 2, wherein the first forming edges (12) of each first original base tape (1) are arranged in pairs in sequence to form a group, in each adjacent group, the opening angles of the folding grooves (111) at the ends of the first forming edges (12) of one group are equal and are set to be β 1, the opening angles of the folding grooves (111) at the ends of the first forming edges (12) of the other group are equal and are set to be β 2, then β 1 is complementary with β 2, and the opening angles of the folding grooves (111) corresponding to the positions of the first original base tapes (1) which are adjacent in sequence are alternately complementary and equal.

7. The notch-folded honeycomb bionic core plate of claim 1, wherein: the folding groove (111) is a trapezoidal groove.

8. A notch-folded honeycomb biomimetic core plate as in any of claims 1-7, wherein: the raw material of the first raw base belt (1) comprises one or more of wood material, paper material, metal and plastic;

and/or when the raw material of the first original base band (1) is a non-paper material, the surface of the first original base band (1) is provided with a facing;

and/or the ratio of the thickness d1 of the bottom of the folding groove (111) of the first original base band (1) to the thickness h of the first original base band (1) is 2-4: 15-60;

and/or the folding groove (111) is a V-shaped groove, and the opening angle of the folding groove (111) is 60 degrees, 90 degrees or 120 degrees.

9. The utility model provides a bionical core of honeycomb is folded to notch which characterized in that: the novel adhesive tape comprises at least two first original base tapes (1), wherein a plurality of first adhesive edges (11) are uniformly divided at intervals on the first original base tapes (1), a first forming edge (12) is divided between two adjacent first adhesive edges (11), folding grooves (111) are formed between the adjacent first forming edges (12) and the first adhesive edges (11) in each first original base tape (1), the opening directions of the folding grooves (111) at the two ends of each first forming edge (12) are opposite, the opening directions of the folding grooves (111) at the two ends of each first adhesive edge (11) are the same, and the opening directions of the folding grooves (111) corresponding to the positions of the adjacent first original base tapes (1) are opposite;

adjacent lay two former baseband (2) of second between first former baseband (1), the former baseband (2) of second be even interval division have many with second bonding limit (21) that first bonding limit (11) position of first former baseband (1) corresponds, divide between two adjacent second bonding limits (21) and have a second shaping limit (22), and first bonding limit (11) that the position corresponds bond with second bonding limit (21) interval, two second bonding limits (21) that the position corresponds bond at an interval, and form a plurality of cavity type honeycomb cell structures towards both sides after pulling open.

10. The notch-folded honeycomb biomimetic core plate of claim 9, wherein: the raw material of the first original base band (1) comprises one or more of wood material, paper material, metal and plastic, and the second original base band (2) is a paper band;

and/or when the raw material of the first original base band (1) is a non-paper material, the surface of the first original base band (1) is provided with a facing;

and/or the ratio of the thickness d1 of the bottom of the folding groove (111) of the first original base band (1) to the thickness h of the first original base band (1) is 2-4: 15-60;

and/or the folding groove (111) is a V-shaped groove, and the opening angle of the folding groove (111) is 60 degrees, 90 degrees or 120 degrees.

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