CN113619206A - Cellular core plate with graded holes and manufacturing method thereof - Google Patents

Cellular core plate with graded holes and manufacturing method thereof Download PDF

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Publication number
CN113619206A
CN113619206A CN202010376982.XA CN202010376982A CN113619206A CN 113619206 A CN113619206 A CN 113619206A CN 202010376982 A CN202010376982 A CN 202010376982A CN 113619206 A CN113619206 A CN 113619206A
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CN
China
Prior art keywords
group
base band
base
indentation
bonding
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Pending
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CN202010376982.XA
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Chinese (zh)
Inventor
吴新凤
郝景新
娄巧莲
胡云楚
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Central South University of Forestry and Technology
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Central South University of Forestry and Technology
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Application filed by Central South University of Forestry and Technology filed Critical Central South University of Forestry and Technology
Priority to CN202010376982.XA priority Critical patent/CN113619206A/en
Publication of CN113619206A publication Critical patent/CN113619206A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
    • B32B3/12—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a layer of regularly- arranged cells, e.g. a honeycomb structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
    • B31D3/0223—Making honeycomb cores, e.g. by piling a plurality of web sections or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31D—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER, NOT PROVIDED FOR IN SUBCLASSES B31B OR B31C
    • B31D3/00—Making articles of cellular structure, e.g. insulating board
    • B31D3/02—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section
    • B31D3/0292—Making articles of cellular structure, e.g. insulating board honeycombed structures, i.e. the cells having an essentially hexagonal section involving auxiliary operations, e.g. expanding, moistening, glue-applying, joining, controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/01—Layered products comprising a layer of metal all layers being exclusively metallic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/002—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B29/005—Layered products comprising a layer of paper or cardboard as the main or only constituent of a layer, which is next to another layer of the same or of a different material next to another layer of paper or cardboard layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B29/00—Layered products comprising a layer of paper or cardboard
    • B32B29/08—Corrugated paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2419/00—Buildings or parts thereof

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  • Laminated Bodies (AREA)

Abstract

The invention discloses a honeycomb core plate with hierarchical holes, which at least comprises two base bands, wherein each base band comprises two surface layers arranged in parallel and a corrugated interlayer connected between the two surface layers in the thickness direction, and a primary hole is formed between each surface layer and the corrugated interlayer; the base bands are uniformly divided into a plurality of bonding edges at intervals along the length direction, a forming edge is arranged between every two adjacent bonding edges, indentations or linear through holes are arranged between every two adjacent forming edges and the bonding edges in each base band, the bonding edges corresponding to the adjacent base bands are bonded at intervals, and the bonding edges are pulled towards two sides to form a continuous honeycomb structure with hexagonal unit holes. The invention has the advantages of dispersed stress and high strength-to-weight ratio.

Description

Cellular core plate with graded holes and manufacturing method thereof
Technical Field
The invention relates to the field of honeycomb sandwich panel forming, in particular to a honeycomb sandwich panel with hierarchical holes and a manufacturing method thereof.
Background
The core layer of the conventional honeycomb sandwich board adopts a natural honeycomb structure, the structure can be regarded as a hexagonal hole structure formed by thin plate type cell walls according to a certain arrangement rule, but the hole type is single, and the thin plate cell walls are easy to bend and destabilize under the action of transverse force, so that the bearing capacity is lost. The orientation enhancement of a honeycomb weak phase layer can be realized by conventional structure regulation and control means such as reduction of cell size, reduction of honeycomb tensile shelter and the like, but the density is rapidly increased, and the strength-to-weight ratio is unchanged. The strength-to-weight ratio of the honeycomb structure can be improved only a little by the morphological innovation of the cells. Therefore, in the occasions of common load-bearing parts of industrial products or heavy loads of building walls, the conventional honeycomb sandwich structure cannot meet the dual requirements of light weight, high strength and low cost, and the strength-weight ratio of the honeycomb structure is urgently needed to be remarkably improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a graded hole honeycomb structure with dispersed stress and high strength-to-weight ratio and a manufacturing method thereof.
A honeycomb core plate with hierarchical holes at least comprises two base bands, wherein each base band comprises two surface layers arranged in parallel and a corrugated interlayer connected between the two surface layers in the thickness direction, and a primary hole is formed between each surface layer and the corrugated interlayer; the base bands are uniformly divided into a plurality of bonding edges at intervals along the length direction, a forming edge is arranged between every two adjacent bonding edges, indentations or linear through holes are arranged between every two adjacent forming edges and the bonding edges in each base band, the bonding edges corresponding to the adjacent base bands are bonded at intervals, and the bonding edges are pulled towards two sides to form a continuous honeycomb structure with hexagonal unit holes.
As a further improvement to the above technical solution:
the base band is made of a paper corrugated board or a paperboard or a metal corrugated board or a metal sheet. The form of the corrugated sandwich corrugation is one or more of a curve type, a W-shaped folding type or a trapezoid folding type.
As a general inventive concept, the present invention also provides a method for manufacturing the honeycomb core plate with the graded holes, comprising the following steps:
s1, determining the size of the hexagonal unit hole: determining the lengths of a bonding edge and a forming edge of a base band of the honeycomb core board according to preset requirements;
s2, indentation or perforation of the base tape: forming an indentation between the adjacent forming edge and the bonding edge in the base band; the indentation directions of the two ends of the molding edge are opposite, the indentation directions of the two ends of the bonding edge are the same, and the indentation directions corresponding to the positions of the adjacent base bands are opposite;
or a linear perforation is arranged between the adjacent forming edge and the bonding edge in the base band;
s3, gluing and bonding: gluing each bonding edge of the base band, wherein the gluing surfaces of the adjacent bonding edges of the same base band are different, and the bonding edges at the corresponding positions of the adjacent base bands can be bonded at intervals;
s4, molding: and standing the bonded core plates until the core plates are firmly bonded, cutting the core plates into target sizes to obtain strip-shaped core plates, and pulling the core plates towards two sides to form a continuous honeycomb structure with hexagonal unit holes to obtain the honeycomb core plates.
As a further improvement to the above technical solution:
in the step S2, an indentation punching device is used to form an indentation or a linear punching hole on the base band;
the indentation punching device comprises a conveying guide wheel set and a pressing roller set, wherein the conveying guide wheel set is positioned in front of the pressing roller set and drives the base band to move towards the pressing roller set;
the compression roller group at least comprises two compression roller wheels which are respectively and oppositely arranged on two sides of the base band, the compression roller wheels are evenly provided with at least one group of cushion hole groups and convex strip groups along the circumferential direction, the cushion hole groups and the convex strip groups on the same compression roller wheel are all arranged in parallel to the axial direction of the compression roller wheel, and the cushion hole groups of one compression roller wheel and the convex strip groups of the other compression roller wheel are matched to enable the base band to be provided with indentations or linear perforations.
Every group pad hole group includes two pad holes, every group the sand grip group includes two sand grips, and two pad holes, two even interval distribution of sand grip are on the outer circumference of pinch roller wheel.
The circumference of the pressure roller wheel is s, the side length of any hexagonal unit hole in the honeycomb structure is l, wherein s =4n × l, and n is 1-20.
And a plurality of perforation needles are arranged at the top of each convex strip of the convex strip group at intervals along the length direction of the convex strip.
The pressure roller comprises a roller plate table and a base plate, the base plate covers the outer circumferential wall of the roller plate table, and the cushion hole group and the convex strip group are located on the base plate.
The indentation perforating device further comprises a cutting mechanism, the cutting mechanism is used for cutting the base band, and the cutting mechanism is located on one side of the pressing roller set and is far away from the conveying guide wheel set.
The indentation perforating device further comprises a working platform, the working platform comprises a front platform and a rear platform, the front platform is located in front of the conveying guide wheel set and used for placing a base band, the rear platform is located behind the compression roller set, and the base band sequentially passes through the conveying guide wheel set, the compression roller set, the cutting mechanism and the rear platform from the front platform.
Compared with the prior art, the invention has the advantages that:
according to the cellular core plate with the hierarchical holes and the manufacturing method thereof, the hierarchical hole cellular composed of the cell wall holes (primary holes) and the cell cavity holes (hexagonal unit holes) can further disperse stress compared with the conventional single hole cellular, so that the strength-to-weight ratio is obviously improved. Meanwhile, the grading holes have the characteristics of better sound absorption and heat insulation, simple process and low manufacturing cost, and can be used in occasions with higher requirements on the material strength-weight ratio, such as household products, building wallboards, high-speed rail carriages, unmanned aerial vehicle wings, satellite sailboards and the like.
Drawings
Fig. 1 is a schematic structural view of a honeycomb core board in embodiment 1.
Fig. 2 is a schematic plan view of the honeycomb core board in example 1.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a schematic diagram of a base band structure of the cellular core board in embodiment 1.
Fig. 5 is a schematic view showing the application of the base tape of the honeycomb core in example 1.
Fig. 6 is a schematic structural view of the indentation punching apparatus in example 1.
FIG. 7 is a schematic view of a rib structure according to the present invention.
Fig. 8 is a schematic view of the base tape indentation folding process in example 1.
Fig. 9 is a schematic view of a base tape perforation folding process in example 3.
The reference numerals in the figures denote:
1. a baseband; 11. bonding the edges; 111. indentation; 112. linear perforation; 12. forming edges; 13. a surface layer; 14. a corrugated interlayer; 15. primary holes; 16. a hexagonal unit hole; 2. a working platform; 21. a front platform; 22. a rear platform; 3. a transmission guide wheel group; 4. a compression roller set; 41. a pressure roller; 411. a base plate; 4111. a set of cushion holes; 4112. a convex strip group; 412. a roller table; 5. and a cutting mechanism.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples. Unless otherwise specified, the instruments or materials employed in the present invention are commercially available.
Example 1: (corrugated base with indentation folding)
Fig. 1 to 5 show a cellular core board with hierarchical holes according to the present embodiment, the cellular core board includes at least two base tapes 1, the base tapes 1 include two surface layers 13 arranged in parallel along the thickness direction and a corrugated interlayer 14 connected between the two surface layers 13, and a primary hole 15 is disposed between the surface layer 13 and the corrugated interlayer 14; the base bands 1 are evenly divided into a plurality of bonding edges 11 at intervals along the length direction, a forming edge 12 is arranged between two adjacent bonding edges 11, an indentation 111 or a linear perforation 112 is arranged between the adjacent forming edge 12 and the bonding edge 11 in each base band 1, the bonding edges 11 corresponding to the positions of the adjacent base bands 1 are bonded at intervals, and the base bands are pulled away towards two sides to form a continuous honeycomb structure with hexagonal unit holes 16.
In this embodiment, the base tape 1 is a corrugated board, the surface layer 13 is corrugated paper, and the corrugated interlayer 14 is a corrugated medium.
In the structure, a honeycomb structure with a plurality of hexagonal unit holes 16 is formed among the base bands 1, compared with the traditional single-hole honeycomb, wood, foamed plastic and other materials, the honeycomb core plate has the characteristics of sound absorption, heat insulation, simple process and low manufacturing cost, can be repeatedly used, has little pollution to the environment and is an environment-friendly low-carbon product; on the basis of the corrugated cell wall holes (primary holes 15), the hierarchical hole honeycomb structure which forms the cell cavity holes (hexagonal unit holes 16) through folding can further disperse and bear external forces from all directions, namely, the strength of each hexagonal unit hole 16 is greatly improved, the compressive strength of the hexagonal unit hole is greatly broken through, and the application range is expanded.
In this embodiment, the base tape 1 is formed with indentations on an original corrugated cardboard by an indentation punching device, each of the indentations is provided with two groups, the two groups of indentations are staggered up and down, the distance between two adjacent indentations is equal, the base tape 1 is folded and bonded according to the indentation positions, and the base tape is pulled open towards two sides to form the honeycomb core board with the hexagonal unit holes 16 honeycomb structure.
Fig. 6 and 7 show an indentation and perforation apparatus for manufacturing a honeycomb core plate with graded holes, which includes a working platform 2, a conveying guide wheel set 3 (in this embodiment, the conveying guide wheel is a rubber belt conveying guide wheel), a press roll set 4, and a cutting mechanism 5, wherein the conveying guide wheel set 3 is located in front of the press roll set 4, and the conveying guide wheel set 3 drives the base tape 1 to move towards the press roll set 4.
The pressing roller set 4 at least comprises two pressing rollers 41 respectively and oppositely arranged on two sides of the base band 1, the pressing rollers 41 are uniformly provided with at least one group of pad hole groups 4111 and convex strip groups 4112 along the circumferential direction, the pad hole groups 4111 and the convex strip groups 4112 on the same pressing roller 41 are all arranged in parallel to the axial direction of the pressing roller 41, and the pad hole group 4111 of one pressing roller 41 is matched with the convex strip group 4112 of the other pressing roller 41 to generate an indentation 111 or a linear perforation 112 on the base band 1.
Each group of pad hole group 4111 comprises two pad holes, each group of convex strips 4112 comprises two convex strips, and the two pad holes and the two convex strips are uniformly distributed on the outer circumference of the pressure roller wheel 41 at intervals. The distance between the adjacent pad holes, the distance between the adjacent convex strips and the distance between the adjacent pad holes and the convex strips are equal.
The press roller 41 includes a roller stage 412 and a pad 411, the pad 411 covers an outer circumferential wall of the roller stage 412, and the pad hole group 4111 and the protrusion group 4112 are located on the pad 411.
The perimeter of the pressure roller 41 is s, the side length of any hexagonal unit hole 16 in the honeycomb structure is l, wherein s =4n × l, and n is 1-20.
The set of ribs 4112 is removably attached to the backing plate 411.
In another embodiment, as shown in fig. 7b, a plurality of perforation pins are provided at intervals along the longitudinal direction of the convex strips at the tops of the convex strips of the convex strip group 4112.
In this embodiment, the pressing roller set 4 of the indentation punching device is provided with a convex strip to form an indentation device, and after the base tape 1 is fed by the conveying guide roller set 3, the pressing roller set 4 rolls on the base tape 1 to form an indentation.
The cutting mechanism 5 is used for cutting the base band 1, and the cutting mechanism 5 is positioned on one side of the press roller group 4 and is far away from the conveying guide wheel group 3.
Work platform 2 includes preceding platform 21 and back platform 22, and preceding platform 21 is located 3 the place ahead of conveying guide pulley group and is used for placing baseband 1, and back platform 22 is located the rear of compression roller group 4, and baseband 1 passes through conveying guide pulley group 3, compression roller group 4, cutting mechanism 5 and back platform 22 from preceding platform 21 in proper order.
The cutting mechanism 5 will reach the rear platform 22 when cutting the base tape 1, and the cutting process is completed.
Fig. 8 is a schematic view of the indentation folding process of the base tape 1, wherein fig. 8a is a side view of the base tape 1 after indentation, fig. 8b is a schematic view of the structure of the base tape 1 after indentation, and fig. 8c is a schematic view of the structure of the base tape 1 after folding, and the base tape 1 is firstly rolled on an indentation device to form two groups of indentations which are staggered up and down, and then the base tape 1 is folded according to the indentations.
The manufacturing method of the honeycomb core plate with the graded holes in the embodiment comprises the following steps:
s1: design the hexagonal unit hole 16 size: the side length of a hexagonal unit hole 16 in the honeycomb core plate is designed, and the corrugated paper is in a corrugated shape, and the thickness of the corrugated honeycomb core plate is selected.
S2: base tape 1 indentation/perforation preparation: and a convex strip group 4112 is arranged on a press roll group 4 of the indentation perforating device, and the base band 1 is rolled at the press roll group 4 to form two groups of indentations which are staggered up and down.
S3: gluing: the base tape 1 is divided into an adhesive edge 11, a molding edge 12 and the adhesive edge 11 is coated with glue.
S4: pasting: and (3) superposing and sticking the bonding edges 11 at the corresponding positions of the adjacent base bands 1 in a positive-negative mode to form the honeycomb core plate with the corrugated hexagonal unit hole 16 structure.
S5: molding: and standing the bonded core plates for a certain time until the bonding is firm, cutting the core plates into required sizes to obtain strip-shaped core plates, and pulling the strip-shaped core plates towards two sides to obtain the honeycomb core plates.
Example 2 (cardboard type base band indentation folding)
This embodiment is substantially the same as embodiment 1 except that: the base tape 1 of the present embodiment is made of cardboard, and the surface layer 13 and the corrugated sandwich layer 14 are made of cardboard.
Example 3 (corrugated base band perforation folding)
This embodiment is substantially the same as embodiment 1 except that: in the embodiment, a plurality of perforation needles are provided at intervals along the longitudinal direction of the protruding strip at the top of the protruding strip group 4112, and a linear hole is formed between the bonding edge 11 and the forming edge 12 of the base tape 1.
Fig. 9 is a schematic view of a perforation and folding process of the base tape 1 of this embodiment, wherein fig. 9a is a side view of the base tape 1 after perforation, fig. 9b is a schematic view of the base tape 1 after perforation, and fig. 9c is a schematic view of the base tape 1 after folding.
Example 4 (cardboard type base band perforation folding)
This embodiment is substantially the same as embodiment 3 except that: the base tape 1 of the present embodiment is made of cardboard, and the surface layer 13 and the corrugated sandwich layer 14 are made of cardboard.
Example 5 (Metal corrugated board type base band indentation folding)
This embodiment is substantially the same as embodiment 1 except that: the base tape 1 of the present embodiment is made of metal corrugated board.
Example 6 (Metal plate type base band perforation folding)
This embodiment is substantially the same as embodiment 3 except that: the base tape 1 of the present embodiment is made of a metal plate, and the surface layer 13 and the corrugated interlayer 14 are made of a metal plate.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.

Claims (10)

1. A cellular core board of hierarchical hole which characterized in that: the honeycomb core plate at least comprises two base belts (1), the base belts (1) comprise two surface layers (13) which are arranged in parallel and a corrugated interlayer (14) connected between the two surface layers (13) along the thickness direction, and a primary hole (15) is arranged between the surface layers (13) and the corrugated interlayer (14); the base band (1) is divided into a plurality of bonding edges (11) at uniform intervals along the length direction, a forming edge (12) is arranged between every two adjacent bonding edges (11), an indentation (111) or a linear perforation (112) is arranged between every two adjacent forming edges (12) and the bonding edges (11) in each base band (1), and the bonding edges (11) corresponding to the positions of the adjacent base bands (1) are bonded at intervals and pulled towards two sides to form a continuous honeycomb structure with hexagonal unit holes (16).
2. The honeycomb core of claim 1, wherein: the base belt (1) is made of a paper corrugated board or a paperboard or a metal corrugated board or a metal sheet; the corrugated interlayer (14) has one or more of a curved, W-shaped or trapezoidal folding form.
3. A method of manufacturing a cellular core plate of graded holes according to claim 1 or 2, characterized in that: the method comprises the following steps:
s1, determining the size of the hexagonal unit hole (16): determining the lengths of a bonding edge (11) and a forming edge (12) of a base band (1) of the honeycomb core board according to preset requirements;
s2, indentation or perforation of the base tape (1): forming an indentation (111) between the adjacent forming edge (12) and the bonding edge (11) in the base band (1); the directions of the indentations (111) at the two ends of the forming edge (12) are opposite, the directions of the indentations (111) at the two ends of the bonding edge (11) are the same, and the directions of the indentations (111) corresponding to the positions of the adjacent base bands (1) are opposite;
or a linear perforation (112) is arranged between the adjacent forming edge (12) and the bonding edge (11) in the base band (1);
s3, gluing and bonding: gluing each adhesive edge (11) of the base band (1), wherein the gluing surfaces of the adjacent adhesive edges (11) of the same base band (1) are different, and the adhesive edges (11) at the corresponding positions of the adjacent base bands (1) can be adhered at intervals;
s4, molding: and standing the bonded core plates until the core plates are firmly bonded, cutting the core plates into target sizes to obtain strip-shaped core plates, and pulling the core plates towards two sides to form a honeycomb structure with continuous hexagonal unit holes (16) to obtain the honeycomb core plate.
4. The manufacturing method according to claim 3, characterized in that: in the step S2, an indentation perforating device is adopted to open an indentation (111) or a linear perforation (112) on the base band (1);
the indentation punching device comprises a conveying guide wheel set (3) and a press roller set (4), wherein the conveying guide wheel set (3) is positioned in front of the press roller set (4), and the conveying guide wheel set (3) drives the base belt (1) to move towards the press roller set (4);
the pressure roller group (4) include two respectively relatively set up in pressure running roller (41) of base band (1) both sides at least, pressure running roller (41) evenly are equipped with an at least group of hole group (4111) and sand grip group (4112) along the circumferencial direction, and the hole group (4111) and the sand grip group (4112) on the same pressure running roller (41) all set up in a parallel with pressure running roller (41) axial direction, and the hole group (4111) of the pad of one of them pressure running roller (41) cooperatees with sand grip group (4112) of another pressure running roller (41) and makes and produce indentation (111) or linear perforation (112) on base band (1).
5. The manufacturing method according to claim 4, characterized in that: every group cushion hole group (4111) includes two cushion holes, every group protruding strip group (4112) includes two sand grips, and two cushion holes, two even interval distribution of sand grip are on the outer circumference of pressure roller wheel (41).
6. The manufacturing method according to claim 5, characterized in that: the circumference of the pressure roller (41) is s, the side length of any hexagonal unit hole (16) in the honeycomb structure is l, wherein s =4n × l, and n is 1-20.
7. The manufacturing method according to claim 5, characterized in that: the top of the convex strip group (4112) is provided with a plurality of perforation needles at intervals along the length direction of the convex strip.
8. The manufacturing method according to claim 5, characterized in that: pressure running roller (41) include running roller version platform (412) and backing plate (411), backing plate (411) cover on the outer circumferential wall of running roller version platform (412), cushion hole group (4111) and sand grip group (4112) are located on backing plate (411).
9. The manufacturing method according to claim 4, characterized in that: the indentation perforating device further comprises a cutting mechanism (5), the cutting mechanism (5) is used for cutting the base band (1), and the cutting mechanism (5) is located on one side of the compression roller group (4) and is far away from the conveying guide wheel group (3).
10. The manufacturing method according to claim 9, characterized in that: the indentation perforating device further comprises a working platform (2), wherein the working platform (2) comprises a front platform (21) and a rear platform (22), the front platform (21) is located in the front of the conveying guide wheel set (3) and used for placing the base band (1), the rear platform (22) is located at the rear of the compression roller set (4), and the base band (1) sequentially passes through the conveying guide wheel set (3), the compression roller set (4), the cutting mechanism (5) and the rear platform (22) from the front platform (21).
CN202010376982.XA 2020-05-07 2020-05-07 Cellular core plate with graded holes and manufacturing method thereof Pending CN113619206A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1144740A (en) * 1996-08-12 1997-03-12 濮阳中原石油化工集团有限责任公司 Impressing device for honeycombing paper board manufacturing device
CN111070843A (en) * 2019-12-18 2020-04-28 广东泰金智能包装有限公司 Micro corrugated base honeycomb packaging structure and forming method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1144740A (en) * 1996-08-12 1997-03-12 濮阳中原石油化工集团有限责任公司 Impressing device for honeycombing paper board manufacturing device
CN111070843A (en) * 2019-12-18 2020-04-28 广东泰金智能包装有限公司 Micro corrugated base honeycomb packaging structure and forming method thereof

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Application publication date: 20211109