CN104085134B - A kind of foldable formed cellular board sandwich and its forming method - Google Patents

Abstract

A kind of foldable formed cellular board sandwich and preparation method thereof, including end plate and cellular sandwich up and down, described cellular sandwich is to fold and be bonded the polygon honeycomb network structure sandwich formed by whole light sheet material, and has the convenient flat blocks for being bonded end plate by the end face of the polygon honeycomb network structure sandwich formed after whole light sheet material folding.The present invention to form cellular sandwich using whole thin material by folding in sequence, when can effectively solve honeycomb core drawing and forming, because " owe stretching " and/or " overstretching " and caused by fuse shape it is uncertain, and resulting cellular board compressive property is the problem of lose；Reliable with stable molding, bulk strength is higher, it is not easy to the characteristics of segregation phenomenon occur.

Description

A folded and formed honeycomb panel core and its forming method

technical field

The invention relates to a sandwich structure of a sandwich panel and a manufacturing method thereof, in particular to a folded and formed honeycomb panel sandwich structure and a forming method thereof, which can effectively reduce the resistance of the honeycomb panel to Compressive performance loss, and when the honeycomb sandwich core is combined with the upper and lower panels, the contact area between the sandwich core and the panel can be increased, and the bonding force between the sandwich core and the panel can be improved. It belongs to the technical field of sandwich panel manufacturing.

Background technique:

Honeycomb products are a new generation of environmentally friendly packaging products. They are unanimously welcomed by the market for their light weight, low price, high strength, and recyclability. Especially in some developed countries and regions, they have been widely used in various packaging industries. .

The honeycomb panel is the main honeycomb product. The honeycomb panel is composed of a honeycomb sandwich core and a panel. It is usually composed of a two-layer multi-layer molding panel and a honeycomb core directly sandwiched in the middle of the panel. The composite can be thermally composited. or cold compound. It has light weight, less materials, and low cost, and its unique honeycomb structure highlights its advantages, which is also the key to its success. At the same time, it also has high strength, not easy to deform, impact resistance, good cushioning performance, and also has the advantages of sound absorption, heat insulation, pollution-free, and environmental protection. word of mouth. Although the history of honeycomb paper in my country is not very long, it has a history of more than 50 years in foreign countries. As a green packaging material, honeycomb paper has irreplaceable advantages compared with corrugated cardboard, wood and plastic. Nowadays, it is increasingly used and promoted in the field of packaging at home and abroad, and has become an indispensable and important material in the development of the packaging industry in the 21st century.

At present, honeycomb cardboard has three main uses. One is to vigorously transport pallets. It is mainly thickened honeycomb cardboard with thick cardboard as the surface layer. It has good strength and light weight. It can be used instead of wooden pallets, effectively reducing deforestation. The ecological environment is protected. The other is the use of heavy-duty packaging boxes. Honeycomb cardboard can be made into thick wallpaper that is difficult for high-rise corrugated cardboard to replace the large-scale use of packaging wooden boxes, replacing wood with paper and saving forest resources. Another kind is the use of lining cushions. Honeycomb cardboard can be made into different shapes and used in packaging boxes instead of polystyrene foam pads, which not only solves the problem of white pollution, but also reduces the packaging volume and packaging materials. , Reduce transportation costs, it really serves multiple purposes.

The reason why the honeycomb paperboard can get such a good effect is due to the honeycomb core in the form of honeycomb structure, but the honeycomb core of the current honeycomb paperboard is made of kraft paper after cutting and bonding to form a regular hexagonal structure, which is made according to the principle of honeycomb structure in nature , it is a new type of sandwich structure formed by connecting corrugated base paper into countless hollow three-dimensional regular hexagons by glue bonding to form an integral force-bearing part-paper core, and bonding face paper on both sides of it. Environmentally friendly and energy-saving materials, although the regular hexagonal honeycomb core formed by this paste has high strength, it is found in practical applications that it is difficult to form a real hexagonal honeycomb core in this kind of honeycomb paperboard. It is difficult to form at the place, and often there will be certain rounded corners, which will cause "under-stretching" and/or "over-stretching" when the honeycomb core is stretched and formed, resulting in uncertainty in the shape of the core, which will It greatly affects the performance of the force, and the resulting loss of the compressive performance of the honeycomb panel; and the hexagon formed by this bonding is very troublesome and the quality is not high, so the bonding strength is not high, especially The hexagon formed by the existing bonding is only in linear contact when it is combined with the upper and lower panels, which is easy to cause degumming, and the core and the panel are partially separated due to the small contact area between the core and the panel, which affects the appearance. and performance, so there is still room for further improvement.

No patent literature reports on the same technology as the present invention have been found through patent retrieval, and the patents that have a certain relationship with the present invention mainly include the following:

1. The patent number is CN201410051144.X, an invention patent named "a polyimide paper honeycomb core and its preparation method", which discloses a polyimide paper honeycomb core and its preparation method, as follows Preparation method: 1) Glue coating treatment: Coat polyimide glue on the surface of polyimide paper, then laminate the polyimide paper after multi-layer glue coating, and finally heat it with a hot press machine. 2) Shaping treatment: Stretch the honeycomb stack to form a regular hexagonal honeycomb cell; then shape it in an oven to obtain a white honeycomb block; 3) Dipping treatment: The white honeycomb After the block is dipped and cured, the polyimide paper honeycomb core is prepared.

2. The patent number is CN201410004961.X, and the invention patent titled "Honeycomb core based on carbon fiber paper and its preparation method" discloses a honeycomb core based on carbon fiber paper and its preparation method, including coating carbon fiber paper with glue , laminated, and hot pressed to make a honeycomb stack, then stretch the honeycomb stack and dip it for 1 to 8 times, dry and solidify after the last dipping, and slice the honeycomb after dipping and curing .

3. The patent number is CN201310510482.0, and the invention patent titled "a honeycomb core splicing method" discloses a honeycomb core splicing method. The steps are as follows: between the honeycomb core groups of the honeycomb sandwich panel or between the honeycomb core and the A strip of styrofoam that meets the specified strength requirements is inserted between the frame frames. The styrofoam is heated and expanded under the high temperature of the hot-pressed board, and is simultaneously hot-pressed and cured with the adhesive or film in the board-making process. Or the honeycomb core and frame frame are bonded into one.

Although the above-mentioned patents all relate to the honeycomb core and its manufacturing method, they have not changed the general method of first making the frame of the honeycomb core into strips, then bonding these strips together, and then stretching to form a honeycomb core. The conventional practice of the honeycomb sandwich still has the phenomenon of "understretching" and/or "overstretching", which causes the uncertainty of the shape of the core, so further improvement is still needed.

Contents of the invention

The purpose of the present invention is to propose a new method of manufacturing honeycomb panels for the problems existing in the existing honeycomb panels, which can effectively change the "understretch" and/or "overstretch The phenomenon of "stretching", and can greatly increase the contact area between the core and the upper and lower panels, and enhance the strength of the honeycomb core.

Based on the above assumptions, the technical solution proposed by the present invention is: a folded and formed honeycomb panel sandwich, which is a honeycomb sandwich formed by combining multiple honeycomb structures, characterized in that the honeycomb sandwich is made of a whole thin plate Materials are folded and bonded to form a polygonal honeycomb network structure sandwich, and the end face of the polygonal honeycomb network structure sandwich formed by folding the entire sheet material has a flat block for bonding end plates.

Further, the honeycomb sandwich core is a polygonal honeycomb mesh structure sandwich formed by punching the entire thin plate in a certain order according to the position of the punch holes, and after folding and forming, it is sandwiched between the honeycomb mesh structure The end faces of the core are formed with planar blocks to facilitate bonding of the end plates.

Further, the polygonal honeycomb mesh structure sandwich is a sandwich formed based on a combination of hexagonal, rhombus or square honeycomb structures, and the whole sheet is punched and folded in order to form a hexagonal, rhombus or square honeycomb structure , and at one or both ends of the hexagonal, rhombus or square honeycomb structure, there are a plurality of planar blocks for bonding the end plates, and the planar blocks are at one or both ends of the hexagonal, rhombus or square honeycomb structure end face.

Further, the plane blocks are upper square or waist-shaped blocks, and each plane block covers one end face of a honeycomb unit cell, and the plane blocks are naturally formed by bending the whole thin plate itself.

A method for making a folded and formed honeycomb panel core, a polygonal honeycomb network structure core formed by folding and bonding, characterized in that the polygonal honeycomb network structure core formed by folding and bonding the entire thin plate material , and the end face of the polygonal honeycomb network structure sandwich formed by folding the whole sheet material has a plane block that is convenient for bonding the end plate, and then the polygonal honeycomb network structure sandwich formed by folding passes through the plane block and the end plate Bonded together to form a folded honeycomb panel core.

Further, the polygonal honeycomb network structure sandwich core formed by folding and bonding the entire thin plate material is to use the whole thin plate to punch holes and then fold itself to form a honeycomb plate sandwich core. Holes, and then folded in order, and the folded surface that is close to each other is pasted together, and the honeycomb panel sandwich is formed by bending with its own material, and it is ensured that after folding, one or both ends of the honeycomb panel sandwich The end faces are evenly distributed and have multiple facet blocks.

Further, the honeycomb sandwich is a sandwich formed based on a combination of hexagonal, rhombus or square honeycomb structures, the whole sheet is punched and folded in order to form a hexagonal, rhombus or square honeycomb structure, and the six The two ends of the polygonal, rhombus or square honeycomb structure are formed with a plurality of evenly distributed small plane blocks for bonding the end plates, and the small plane blocks are evenly distributed on the two ends of the hexagonal, rhombus or square honeycomb structure.

Furthermore, the small plane blocks are upper square or waist-shaped blocks, and each small plane block covers one end surface of a honeycomb unit cell, and the small plane blocks are naturally formed by bending the entire thin plate itself.

Further, the specific manufacturing method of the honeycomb sandwich is as follows:

1. Select the entire sheet material according to the size of the folded honeycomb sandwich;

2. Design the template layout according to the preset honeycomb core side length and height parameters;

3. Make a combined mold according to the pre-designed molding layout. The combined mold includes a base plate (ie, the female mold) and a knife template (ie, the male mold); wherein, the base plate is composed of a plate base and an indentation mold strip ; The knife template is made up of layout, steel knife, steel wire, elastic rubber block and hard sheet material for fixing steel knife and steel wire; Rigid boards for installing molded steel knives and steel wires, the material can be non-metallic wood plywood, hard or flexible plastic boards, or metal steel, lead, aluminum and alloy materials; the indentation mold The base material of the strip is metal or non-metallic hard material, its thickness determines the depth of the indentation line, and the distance between two indentation mold strips determines the width of the indentation line; the bottom plate and the knife template can be flat or roller. Then it is combined into three pressing and cutting working modes: flat pressing, round pressing and round pressing; the bottom plate and the knife template are installed on the general-purpose die-cutting and creasing machine in the packaging and printing industry that matches its shape.

4. Use the combined mold and adopt the continuous double-station workflow to carry out the crease indentation process on the entire sheet material: the first station uses steel wire to press the outer fold line, the second station uses steel wire to press the inner fold line, and uses The steel knife cuts the entire thin plate material according to the cutting line on the molded layout to form cut marks or holes or grooves.

5. Fold the entire thin plate material with indentation in an orderly manner according to the position of the indentation, and form a honeycomb sandwich core with small flat blocks on the end surface through folding.

Further, the orderly folding is carried out according to the following steps:

1. Fold the entire thin sheet material with indentation horizontally according to the position of the indentation to form half of the honeycomb shape that needs to be folded;

2. Fold at another 90 degrees, first turn it up 180 degrees to form a honeycomb block, then turn it down 180 degrees to form another honeycomb block, and at the same time form a small flat block on the end face of the second honeycomb block ;

3. Fold repeatedly according to the method of step 2, and finally form the required honeycomb sandwich with small flat pieces on the end surface.

The beneficial effects of the present invention are: the present invention uses the whole thin material to form a honeycomb sandwich by folding in sequence, which has the following advantages:

(1) It can effectively solve the uncertainty of the shape of the core caused by "understretching" and/or "overstretching" during the stretching of the honeycomb core, as well as the resulting loss of the compressive performance of the honeycomb panel ;It has the characteristics of stable and reliable molding, higher overall strength, and less prone to separation;

(2) When the honeycomb core is combined with the upper and lower panels, because the formed honeycomb core is formed with flat blocks, the bonding area can be greatly increased, the bonding force can be improved, and the core and panel problems caused by the small contact area between the honeycomb core and the panel can be effectively solved. Panel partial separation failure.

Instructions attached

Fig. 1 is the structural representation of an embodiment of the present invention;

Fig. 2 is the expanded schematic diagram of Fig. 1;

Fig. 3 is a schematic diagram of the folding process of Fig. 1;

Fig. 4 is a structural schematic diagram of a combined mold;

Fig. 5 Die-cutting and indentation results of honeycomb core base paper;

Figure 6 is a schematic structural view of another embodiment of the present invention;

Fig. 7 is a structural schematic diagram of another embodiment of the present invention;

Fig. 8 is a schematic structural diagram of another embodiment of the present invention.

detailed description

The present invention will be further described below in conjunction with specific embodiments.

Embodiment one

As shown in the accompanying drawings 1-3, a folded and formed honeycomb panel core is a honeycomb core formed by combining a plurality of honeycomb structures 10. The polygonal honeycomb network structure sandwich formed by bonding, and the end face of the formed polygonal honeycomb network structure sandwich has uniformly distributed plane blocks 11 to facilitate the bonding of the end plates.

The honeycomb sandwich is a sandwich formed based on the combination of hexagonal honeycomb structures. When the whole thin cardboard is unfolded, it becomes a piece of flat paper as shown in Figure 2. After the whole thin cardboard is punched, it is pressed according to the folded position. and then folded in order to form a hexagonal honeycomb structure, and a plurality of evenly distributed planar blocks 11 for bonding end plates are formed on one or both ends of the hexagonal honeycomb structure, and the planar blocks 11 are evenly distributed on the on both ends of the hexagonal honeycomb structure 10 .

The plane blocks 11 are rectangular, and each plane block covers one end surface of a honeycomb unit cell, and the plane blocks are naturally formed by bending a whole sheet of thin cardboard.

Using this kind of manufacturing method of the folded and formed honeycomb panel core, the polygonal honeycomb network structure core formed by folding and bonding is folded according to the steps of accompanying drawing 3, and the surfaces 12 and 13 that are pasted together during folding are folded. Bonding together to form a honeycomb panel sandwich with multiple facets evenly distributed on both ends, the specific production method is as follows:

1. Select the whole thin cardboard material according to the size of the folded honeycomb sandwich;

2. Design the template layout according to the preset honeycomb core side length and height parameters;

3. Make a combined mold (as shown in Figure 4) according to the pre-designed molding layout. The combined mold includes a bottom plate (ie, the female mold) 1 and a knife template (ie, the male mold) 2; wherein, the The bottom plate 1 is composed of the bottom plate base 3 and the indentation mold strip 4; the knife template 2 is composed of the knife template base 5, the steel knife 6, the steel wire 7, the elastic rubber block 8 and the hard steel for fixing the steel knife and the steel wire. quality thin sheet material 9; and the base material of the base plate base 3 and the template plate base 5 is a rigid plate, which is used to install the molded plate steel knife and steel wire, and the material can be non-metallic wood plywood, hard or Flexible plastic plate, or metal steel, lead, aluminum and alloy materials; the base material of the indentation mold strip is metal or non-metallic hard material, and its thickness determines the depth of the indentation line, two The interval of the indentation mold strips determines the width of the indentation line; the bottom plate and the knife template can be flat or roller, and then combined into three cutting modes of flat pressing, circular pressing and circular pressing; the base plate and the knife template are installed in the On the general die-cutting and creasing machine for the packaging and printing industry matching its shape.

4. Use the combined mold and adopt the continuous double-station workflow to carry out the crease indentation process on the entire sheet material: the first station uses steel wire to press the outer fold line, the second station uses steel wire to press the inner fold line, and uses The steel knife cuts the entire thin plate material according to the cutting line on the molded layout to form cut marks or holes or grooves.

5. Fold the entire thin plate material with indentation in an orderly manner according to the position of the indentation, and form a honeycomb sandwich core with small flat blocks on the end surface through folding.

The described orderly folding is carried out according to the following steps:

1. Fold the entire thin sheet material with indentation horizontally according to the position of the indentation to form half of the honeycomb shape that needs to be folded;

2. Fold at another 90 degrees, first turn it up 180 degrees to form a honeycomb block, then turn it down 180 degrees to form another honeycomb block, and at the same time form a small flat block on the end face of the second honeycomb block ;

3. Fold repeatedly according to the method of step 2, and finally form the required honeycomb sandwich with small flat pieces on the end surface.

The honeycomb sandwich core folded according to the above method has the following advantages:

(1) It can effectively solve the uncertainty of the shape of the core caused by "understretching" and/or "overstretching" during the stretching of the honeycomb core, as well as the resulting loss of the compressive performance of the honeycomb panel ;It has the characteristics of stable and reliable molding, higher overall strength, and less prone to separation;

(2) When the honeycomb core is combined with the upper and lower panels, because the formed honeycomb core is formed with flat blocks, the bonding area can be greatly increased, the bonding force can be improved, and the core and panel problems caused by the small contact area between the honeycomb core and the panel can be effectively solved. Panel partial separation failure.

Embodiment two

The basic structure of the second embodiment is the same as that of the first embodiment, except that the facet facet block formed in the second embodiment is not a long flat block, but a drum-shaped flat block. In this way, it is only necessary to cut according to the determined shape when making the cutting mold.

The folding method is consistent with the first embodiment.

Embodiment three

The basic structure of the third embodiment is the same as that of the first embodiment, except that the facet facet block formed in the second embodiment is a thinner elongated flat block. In this way, it is only necessary to cut according to the determined shape when making the cutting mold.

The folding method is consistent with the first embodiment.

Embodiment four

The basic structure of the fourth embodiment is the same as that of the first embodiment, except that the small flat block on the end face formed by the second embodiment is a wide strip-shaped flat block, and the small flat block formed covers the entire end face, which is equivalent to directly forming a flat block. Layer end panels. In this way, it is only necessary to cut according to the determined shape when making the cutting mold.

The folding method is consistent with the first embodiment.

It can be seen from the above embodiments that the present invention relates to a folded and formed honeycomb panel sandwich, including upper and lower end plates and a honeycomb sandwich core, characterized in that the honeycomb sandwich core is folded and bonded by a whole sheet The formed polygonal honeycomb network structure sandwich core, and the end face of the polygonal honeycomb network structure sandwich core formed by folding the whole sheet material has a flat block for convenient bonding of the end plate.

Further, the honeycomb sandwich core is a polygonal honeycomb mesh structure sandwich formed by punching the entire thin plate in a certain order according to the position of the punch holes, and after folding and forming, it is sandwiched between the honeycomb mesh structure The end faces of the core are formed with planar blocks to facilitate bonding of the end plates.

Further, the polygonal honeycomb mesh structure sandwich is a sandwich formed based on a combination of hexagonal, rhombus or square honeycomb structures, and the whole sheet is punched and folded in order to form a hexagonal, rhombus or square honeycomb structure , and at one or both ends of the hexagonal, rhombus or square honeycomb structure, there are a plurality of planar blocks for bonding the end plates, and the planar blocks are at one or both ends of the hexagonal, rhombus or square honeycomb structure end face.

Further, the plane blocks are upper square or waist-shaped blocks, and each plane block covers one end face of a honeycomb unit cell, and the plane blocks are naturally formed by bending the whole thin plate itself.

A method for making a folded and formed honeycomb panel core, a polygonal honeycomb network structure core formed by folding and bonding, characterized in that the polygonal honeycomb network structure core formed by folding and bonding the entire thin plate material , and the end face of the polygonal honeycomb network structure sandwich formed by folding the whole sheet material has a plane block that is convenient for bonding the end plate, and then the polygonal honeycomb network structure sandwich formed by folding passes through the plane block and the end plate Bonded together to form a folded honeycomb panel core.

Further, the polygonal honeycomb network structure sandwich core formed by folding and bonding the entire thin plate material is to use the whole thin plate to punch holes and then fold itself to form a honeycomb plate sandwich core. Holes, and then folded in order, and the folded surface that is close to each other is pasted together, and the honeycomb panel sandwich is formed by bending with its own material, and it is ensured that after folding, one or both ends of the honeycomb panel sandwich The end faces are evenly distributed and have multiple facet blocks.

Further, the honeycomb sandwich is a sandwich formed based on a combination of hexagonal, rhombus or square honeycomb structures, the whole sheet is punched and folded in order to form a hexagonal, rhombus or square honeycomb structure, and the six The two ends of the polygonal, rhombus or square honeycomb structure are formed with a plurality of evenly distributed small plane blocks for bonding the end plates, and the small plane blocks are evenly distributed on the two ends of the hexagonal, rhombus or square honeycomb structure.

Furthermore, the small plane blocks are upper square or waist-shaped blocks, and each small plane block covers one end surface of a honeycomb unit cell, and the small plane blocks are naturally formed by bending the entire thin plate itself.

Further, the specific manufacturing method of the honeycomb sandwich is as follows:

1. Select the entire sheet material according to the size of the folded honeycomb sandwich;

2. Design the template layout according to the preset honeycomb core side length and height parameters;

3. Make a combined mold according to the pre-designed molding layout. The combined mold includes a base plate (ie, the female mold) and a knife template (ie, the male mold); wherein, the base plate is composed of a plate base and an indentation mold strip ; The knife template is made up of layout, steel knife, steel wire, elastic rubber block and hard sheet material for fixing steel knife and steel wire; Rigid boards for installing molded steel knives and steel wires, the material can be non-metallic wood plywood, hard or flexible plastic boards, or metal steel, lead, aluminum and alloy materials; the indentation mold The base material of the strip is metal or non-metallic hard material, its thickness determines the depth of the indentation line, and the distance between two indentation mold strips determines the width of the indentation line; the bottom plate and the knife template can be flat or roller. Then it is combined into three pressing and cutting working modes: flat pressing, round pressing and round pressing; the bottom plate and the knife template are installed on the general-purpose die-cutting and creasing machine in the packaging and printing industry that matches its shape.

4. Use the combined mold and adopt the continuous double-station workflow to carry out the crease indentation process on the entire sheet material: the first station uses steel wire to press the outer fold line, the second station uses steel wire to press the inner fold line, and uses The steel knife cuts the entire thin plate material according to the cutting line on the molded layout to form cut marks or holes or grooves.

5. Fold the entire thin plate material with indentation in an orderly manner according to the position of the indentation, and form a honeycomb sandwich core with small flat blocks on the end surface through folding.

Further, the orderly folding is carried out according to the following steps:

1. Fold the entire thin sheet material with indentation horizontally according to the position of the indentation to form half of the honeycomb shape that needs to be folded;

2. Fold at another 90 degrees, first turn it up 180 degrees to form a honeycomb block, then turn it down 180 degrees to form another honeycomb block, and at the same time form a small flat block on the end face of the second honeycomb block ;

3. Fold repeatedly according to the method of step 2, and finally form the required honeycomb sandwich with small flat pieces on the end surface.

Apparently, the above-mentioned embodiments are only examples of the present invention, and are only for illustrating several examples of the present invention, and any simple modifications and replacements by those skilled in the art are within the protection of the present invention.

Claims (2)

1. a kind of preparation method of foldable formed cellular board sandwich, described cellular board sandwich includes end plate up and down and honeycomb folder Core, described cellular sandwich folds and is bonded the cellular sandwich to form polygon network structure using whole light sheet material, and The end face of the cellular sandwich of the polygon network structure formed after being folded by whole light sheet material is formed with convenient bonding end The facet block of plate, then the cellular sandwich for forming folding are bonded together by facet block with the end plate, are formed Foldable formed cellular board sandwich；It is characterized in that：Specific production method is as follows：

1）Whole light sheet material is chosen according to required folded-sheet honeycomb structure sandwich size；

2）By the honeycomb core length of side set in advance and height parameter design cutting die domain；

3）Sectional die is made by the cutting die domain being pre-designed, described sectional die includes negative and cutting die version；Its In, described negative is made up of version base and impression mould bar；Described cutting die version is by the space of a whole page, molding version steel knife, steel wire, India rubber The hard sheet material composition of block and fixed steel knife and steel wire；And the base material of the version base be with it is certain thickness, be used to Molding version steel knife, the rigid sheet material of steel wire are installed, material is wooden plywood, hard or the flexible plastic sheet of non-metal kind, or Metal class steel, lead system, aluminum and alloy material；The base material of described impression mould bar be metal or nonmetallic hard material, Its thickness determines the depth of indentation line, and the interval of two impression mould bars determines the width of indentation line；Negative, cutting die version are flat Or drum-type, and then it is combined into platen, circle pressing and three kinds of crush-cutting mode of operations of Rotary；Negative, cutting die version be arranged on Form fit the general die-cutting indenting machine of packages printing industry on；

4）Using sectional die, broken line impression processing is carried out to whole light sheet material using the workflow of continuous double： First station suppresses outer broken line using steel wire, and the second station suppresses interior broken line using steel wire, and using steel knife according to cutting die domain On cutting line whole light sheet material is cut, form cut channel or grooving；

5）Whole light sheet material of impression will be pressed with, be folded in order according to the position of impression, forming end face by folding has The cellular sandwich of facet block；

Described orderly folding is carried out as steps described below：

1）Whole light sheet material of impression first will be laterally pressed with, folding needed for being formed is folded according to the position of impression and forms honeycombed The half of shape；

2）90 degree are changed again to be folded, 180 degree is first flipped up, a honeycombed block is formed, and 180 degree is overturn still further below and is formed again One honeycombed block, while forming a facet block on the end face of the honeycombed block formed again；

3）Folding in the way of the step 2 in orderly folding step, the end face needed for ultimately forming has facet block The cellular sandwich.

2. the preparation method of cellular board sandwich as claimed in claim 1, it is characterised in that：Described facet block is rectangle Or kidney-shaped block, each facet block is covered on an end face of a cellular unit lattice, and facet block is by whole thin plate Own nature formation after material buckles.