CN111536369B

CN111536369B - Honeycomb-structure vacuum insulation box and processing technology thereof

Info

Publication number: CN111536369B
Application number: CN202010339110.6A
Authority: CN
Inventors: 王宏海
Original assignee: Xi'an Haihong Packaging LLC
Current assignee: Xi'an Haihong Packaging LLC
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2022-06-03
Anticipated expiration: 2040-04-26
Also published as: CN111536369A

Abstract

The invention provides a honeycomb structure vacuum insulation box and a processing technology thereof, the honeycomb structure vacuum insulation box comprises a box shell and an insulation structure, the insulation structure is fixedly arranged on the inner wall of the box shell, the insulation structure is formed by bonding a plurality of insulation boards, a sealing material is filled at a splicing seam of adjacent insulation boards, each insulation board comprises a honeycomb core and a vacuum protection surface layer, the honeycomb core is wrapped in the vacuum protection surface layer by the vacuum protection surface layer, a vacuumizing channel is arranged on the vacuum protection surface layer, the inner cavity of the vacuum protection surface layer is vacuumized through the vacuumizing channel, a sealing element is arranged at the end part of the vacuumizing channel, and the sealing element enables a sealed airtight structure to be formed by the vacuum honeycomb boards. The processing technology of the honeycomb structure vacuum insulation box comprises the following steps: firstly cutting the metal plate, then fixing the heat insulation plate, then assembling the metal plate, and finally sealing the splicing seam. The invention utilizes the heat preservation plates made of the honeycomb cores to be bonded into a heat preservation structure, which has good heat preservation performance and is easy to degrade.

Description

Honeycomb-structure vacuum insulation box and processing technology thereof

Technical Field

The invention relates to the field of heat-insulating building materials, in particular to a honeycomb-structure vacuum heat-insulating box and a processing technology thereof.

Background

The polystyrene foam board (EPS) is a white object which is made up by using expandable polystyrene beads containing volatile liquid foaming agent, heating and prefoaming them, and heating-forming them in the mould, and has the structural characteristics of fine closed pores. The polystyrene foam board has the advantages of light weight, shock resistance, falling resistance, heat insulation, sound absorption, heat preservation, self extinguishing, environmental protection, ageing resistance, low cost, easy construction and the like, and is widely applied to the packaging industry.

The EPS heat preservation box is an indispensable heat preservation and fresh-keeping container in the aspects of marine product freezing, vegetable fresh-keeping and the like. However, most EPS insulation boxes belong to disposable consumables, are not easily degraded by self after being discarded, and cause great pollution to the environment.

In view of this, a new insulation can is needed to be developed to solve the problem that the EPS insulation can is not easily degraded.

Disclosure of Invention

The invention provides a honeycomb structure vacuum insulation box and a processing technology thereof, wherein insulation boards made of honeycomb cores are bonded into an insulation structure, so that the insulation structure is good in insulation performance and easy to degrade.

The technical scheme for realizing the purpose of the invention is as follows:

a honeycomb structure vacuum insulation can comprising: case shell and insulation construction, insulation construction sets firmly the inner wall at the case shell, insulation construction is formed by the bonding of polylith heated board, and the concatenation seam department packing of adjacent heated board has sealing material, the heated board includes honeycomb core and vacuum protection top layer, the honeycomb core parcel is wherein on the vacuum protection top layer, be equipped with the evacuation passageway on the vacuum protection top layer, the inner chamber on vacuum protection top layer is through evacuation passageway to its evacuation, the tip of evacuation passageway is equipped with the sealing member, and this sealing member makes the airtight structure of vacuum honeycomb panel formation.

As a further improvement of the present invention, the insulation board further comprises a waterproof film layer, and the vacuum protection surface layer and the sealing member are covered by the waterproof film layer.

As a further improvement of the invention, the honeycomb core is manufactured by bonding corrugated paper into a three-dimensional structure, the three-dimensional structure is provided with a plurality of cavities, each cavity penetrates through the honeycomb core in the thickness direction of the honeycomb core, the peripheral wall of each adjacent cavity is provided with a through channel, and all the through channels, all the cavities and the vacuumizing channel are communicated with each other.

As a further improvement of the invention, the corrugated paper is formed by bonding a surface paper layer and a corrugated paper layer, and the through channels penetrate through the surface paper layer and the corrugated paper layer.

As a further improvement of the invention, the section of the cavity of the honeycomb core is a regular hexagon, and the honeycomb core is bonded into a plurality of hollow regular hexagon honeycomb stereo structures by corrugated paper during manufacturing.

A processing technology of a honeycomb structure vacuum insulation box comprises the following steps:

step one, cutting a metal plate: cutting a metal plate according to the size of the heat preservation box;

step two, fixing the heat insulation plate: fixing each metal plate on the corresponding heat insulation plate, wherein the heat insulation plate comprises a honeycomb core and a vacuum protection surface layer, the honeycomb core is wrapped in the vacuum protection surface layer, and the metal plates are fixed on the vacuum protection surface layer;

step three, assembling the metal plate: completing the assembly of the metal plate fixed with the heat insulation plate in the second step;

step four, sealing the splicing seams: and filling the splicing seams of the adjacent insulation boards with sealing materials.

In the prior art, the metal shell of the heat preservation box is generally processed firstly, and then the heat preservation plate and the inner wall plate of the metal shell are generally adhered and installed through glue, but the glue is easy to age after long-time use in the installation mode. According to the invention, the metal plate and the heat insulation plate are fixed into a whole, then the metal plate is spliced, and finally the sealing material is filled in the splicing seam of the heat insulation plate, so that the metal plate and the heat insulation plate are not easy to fall off after long-term use.

Compared with the prior art, the invention has the beneficial effects that:

1. the honeycomb core is made of corrugated paper, and has the advantages of low cost, high strength, difficult bending and the like.

2. The cross section of the honeycomb core is regular hexagon, and the regular hexagon honeycomb core has the advantages of simple structure, light weight and good bending resistance.

3. The corrugated paper layers in the invention face the same direction, which is more beneficial to the manufacture of the honeycomb core.

4. The invention improves the flat-pressing strength of the honeycomb core by increasing the paper thickness of the corrugated paper layer.

5. In the prior art, the metal shell of the heat preservation box is generally processed firstly, and then the heat preservation plate and the inner wall plate of the metal shell are generally adhered and installed through glue, but the glue is easy to age after long-time use in the installation mode. According to the invention, the metal plate and the heat insulation plate are fixed into a whole, then the metal plate is spliced, and finally the sealing material is filled in the splicing seam of the heat insulation plate, so that the metal plate and the heat insulation plate are not easy to fall off after long-term use.

Drawings

FIG. 1 is a schematic view of the wall structure of an incubator;

FIG. 2 is a schematic structural view of an insulation board;

FIG. 3 is a schematic view of the structure of a honeycomb core;

FIG. 4 is a cross-sectional view A-A of FIG. 3;

FIG. 5 is a cross-sectional view B-B of FIG. 3;

FIG. 6 is a process diagram of the waterproof film coating;

FIG. 7 is a schematic structural view of corrugated paper;

fig. 8 is a flow chart of the processing process.

Reference numerals: 100. a thermal insulation board; 1. a honeycomb core; 11. hanging a surface paper layer; 12. a corrugated paper layer; 2. vacuum protecting the surface layer; 3. a vacuum channel is pumped; 4. a seal member; 5. a through passage; 6. a waterproof film layer is arranged; 7. a lower waterproof film layer; 200. a metal plate; 300. and (4) reinforcing ribs.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that functional, methodological, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, "a plurality" means two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

the embodiment provides a honeycomb vacuum insulation can, includes: case shell and insulation construction, insulation construction set firmly the inner wall at the case shell, and insulation construction is formed by the bonding of polylith heated board 100, and the case shell is formed by the metal sheet 200 concatenation, and heated board 100 and metal sheet 200's positional relation is as shown in figure 1, and wherein, the inner wall setting of metal sheet is hugged closely to stiffening rib 300, is used for increasing the intensity of case shell.

The concatenation seam department of adjacent heated board 100 is filled with sealing material, as shown in fig. 2, heated board 100 includes honeycomb core 1 and vacuum protection top layer 2, and vacuum protection top layer 2 wraps up honeycomb core 1 wherein, is equipped with evacuation passageway 3 on the vacuum protection top layer 2, and the inner chamber on vacuum protection top layer 2 is through evacuation passageway 3 to its evacuation, and the tip of evacuation passageway 3 is equipped with sealing member 4, and this sealing member 4 makes the airtight enclosed construction of vacuum honeycomb panel formation. In the embodiment, the heat preservation box is formed by bonding the vacuum honeycomb plates, so that the heat preservation performance is good and the heat preservation box is easy to degrade.

In order to improve the waterproof performance of the insulation can, the insulation board 100 of the embodiment further includes a waterproof film layer, and the vacuum protection surface layer 2 and the sealing member 4 are wrapped in the waterproof film layer.

Preferably, the honeycomb core 1 is manufactured by bonding corrugated paper into a three-dimensional structure, as shown in fig. 4 and 5, the three-dimensional structure has a plurality of cavities, each cavity penetrates through the honeycomb core 1 in the thickness direction of the honeycomb core 1, through channels 5 are arranged on the peripheral walls of adjacent cavities, and all the through channels 5, all the cavities and the vacuumizing channel 3 are communicated with each other. Preferably, the corrugated paper is formed by bonding a corrugated paper layer 12 and a corrugated paper layer 11, and the through channel 5 penetrates through the corrugated paper layer 12 and the corrugated paper layer 11.

As shown in fig. 4 and 5, the cross section of the cavity of the honeycomb core 1 is a regular hexagon, and the honeycomb core 1 is made by bonding corrugated paper into a plurality of hollow regular hexagon honeycomb solid structures.

As shown in fig. 8, the processing technology of the honeycomb structure vacuum insulation can of the embodiment includes the following steps: step one, cutting a metal plate 200: cutting a metal plate 200 according to the size of the heat preservation box; step two, fixing the heat insulation board 100: fixing each metal plate 200 on the corresponding heat insulation board 100, wherein the heat insulation board 100 comprises a honeycomb core 1 and a vacuum protection surface layer 2, the honeycomb core 1 is wrapped in the vacuum protection surface layer 2, and the metal plates 200 are fixed on the vacuum protection surface layer 2; step three, assembling the metal plate 200: completing the assembly of the metal plate 200 material fixed with the heat insulation plate 100 in the second step; step four, sealing the splicing seams: the joint seams of adjacent insulation panels 100 are filled with a sealing material.

In the prior art, a metal shell of the insulation box is generally processed and finished, and then the insulation board 100 and an inner wall plate of the metal shell are generally adhered and mounted through glue, but the glue is easy to age after the insulation board is used for a long time in the mounting mode. This embodiment is earlier fixed with heated board 100 to be an organic whole with metal sheet 200 material, then splices metal sheet 200 material, fills sealing material in the splice joint of heated board 100 at last, uses metal sheet 200 material and heated board 100 to be difficult for droing for a long time.

Example 2:

on the basis of the scheme disclosed in embodiment 1, the embodiment discloses the structure of the heat-insulating board 100 and the coating process of the waterproof film layer in the heat-insulating board 100.

The structure of the heat insulation board 100 is shown in fig. 2, and comprises a honeycomb core 1 and a vacuum protection surface layer 2, wherein the honeycomb core 1 is wrapped in the vacuum protection surface layer 2, a vacuumizing channel 3 is arranged on the vacuum protection surface layer 2, the inner cavity of the vacuum protection surface layer 2 is vacuumized through the vacuumizing channel 3, a sealing element 4 is arranged at the end part of the vacuumizing channel 3, and the sealing element 4 enables the heat insulation board 100 to form a sealed airtight structure; the honeycomb core 1 is bonded into a three-dimensional structure by corrugated paper when being manufactured, the three-dimensional structure is provided with a plurality of cavities, each cavity penetrates through the honeycomb core 1 in the thickness direction of the honeycomb core 1, the peripheral wall of each adjacent cavity is provided with a through channel 5, and all the through channels 5, all the cavities and the vacuumizing channel 3 are communicated with each other; as shown in fig. 7, the corrugated paper is formed by bonding a corrugated paper layer 12 and a corrugated paper layer 11, and the through passage 5 penetrates the corrugated paper layer 12 and the corrugated paper layer 11. The honeycomb core 1 of this embodiment is made of corrugated paper, and has advantages such as with low costs, intensity is high, difficult buckling.

As shown in fig. 3, 4 and 5, the cross section of the cavity of the honeycomb core 1 is a regular hexagon, and the honeycomb core 1 is made by bonding corrugated paper into a plurality of hollow regular hexagon honeycomb solid structures. The honeycomb core 1 cross section of this embodiment is regular hexagon, and regular hexagon's honeycomb core 1 has simple structure, the quality is light, anti bending property is good advantage.

As shown in fig. 4 and 5, the corrugated sheets 12 of all the corrugated papers of the honeycomb core 1 are oriented in the same direction. In this embodiment, the corrugated paper layers 12 are oriented in the same direction, which is more beneficial to manufacture the honeycomb core 1. Specifically, the cross section of the corrugated paper layer 12 is sinusoidal, the plane of the corrugated paper layer 12 corresponding to the trough of the sinusoidal wave is bonded to the liner paper layer 11, and the other surface of the corrugated paper layer 12 corresponding to the crest of the sinusoidal wave faces the cavity. The corrugated paper layer 12 is made of paper and processed by a corrugated roller, and the thickness of the paper is larger than that of the hanging surface paper layer 11. The present embodiment improves the flat crush strength of the honeycomb core 1 by increasing the paper thickness of the corrugated paper layer 12. The hanging surface paper layer 11 and the corrugated paper layer 12 are bonded through a starch glue layer.

The vacuum protection top layer 2 of this embodiment outside still cladding has waterproof rete. As shown in fig. 6, the waterproof membrane layer also encases the seal 4 therein.

As shown in fig. 6, in the present embodiment, by adding a waterproof film, the size of the upper waterproof film layer is larger than the upper surface of the insulation board 100, vacuum pumping is performed from the side wall or the lower surface of the insulation board 100, then the waterproof film layer is attached, and finally the excessive waterproof film of the upper waterproof film layer is attached to the lower surface, so as to maintain a lasting vacuum degree.

Example 3:

on the basis of the solutions disclosed in embodiment 1 and embodiment 2, the present embodiment discloses a structure of corrugated paper, and as shown in fig. 7, compared with a conventional paper core, the corrugated paper of the present embodiment has one less hanging surface paper layer 11, which not only saves one hanging surface paper layer 11 and reduces the processing cost by more than 25%, but also is easy to bend and process in the forming process. In addition, the corrugated paper layer 12 of the present embodiment is directly exposed, and has good cushioning performance.

The corrugated paper layer 12 of this embodiment is processed by a corrugating roller using paper, and the thickness of the paper is greater than that of the hanging surface paper layer 11. The embodiment improves the flat crush strength of the corrugated paper by increasing the paper thickness of the corrugated paper layer 12.

Conventional corrugated paper core comprises two-layer hanging surface paper layer 11 and one deck wave form corrugated paper layer 12, wave form corrugated paper layer 12's waveform thickness this moment is not more than 3mm, corrugated paper for making this embodiment has better shock-absorbing capacity, the wave form thickness after wave form corrugated paper layer 12 shaping is 3 ~ 5mm in this embodiment, when wave form thickness is less than 3mm, the shock resistance of corrugated paper is not good, when wave form thickness is greater than 5mm, the corrugated paper is thicker, the space that occupies the case shell is great.

The width of the adjacent wave form of the conventional corrugated paper core is more than 9mm, and the buffer performance of the corrugated paper core can be improved by reducing the width of the wave form. In addition, the exposed directions of the corrugated paper layers 12 of the present embodiment are the same or perpendicular, so that when the articles in the thermal insulation box are shaken or impacted, the corrugated honeycomb structure formed by all corrugated papers has stronger impact resistance.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A honeycomb structure vacuum insulation can comprising: the heat insulation structure is fixedly arranged on the inner wall of the box shell and is formed by bonding a plurality of heat insulation plates (100), and sealing materials are filled at the splicing seams of the adjacent heat insulation plates (100), the heat insulation structure is fixedly arranged on the inner wall of the box shell and is formed by bonding a plurality of heat insulation plates (100), the box shell is formed by splicing metal plates (200), and reinforcing ribs (300) are arranged close to the inner wall of the metal plates and are used for increasing the strength of the box shell;

the heat insulation plate (100) comprises a honeycomb core (1) and a vacuum protection surface layer (2), the honeycomb core (1) is wrapped in the vacuum protection surface layer (2), a vacuumizing channel (3) is arranged on the vacuum protection surface layer (2), the inner cavity of the vacuum protection surface layer (2) is vacuumized through the vacuumizing channel (3), a sealing element (4) is arranged at the end part of the vacuumizing channel (3), and the sealing element (4) enables a vacuum honeycomb plate to form a sealed airtight structure; the sealing element (4) is of a T-shaped structure;

the honeycomb core (1) is bonded into a three-dimensional structure by corrugated paper when being manufactured, the three-dimensional structure is provided with a plurality of cavities, each cavity penetrates through the honeycomb core (1) in the thickness direction of the honeycomb core (1), the peripheral wall of each adjacent cavity is provided with a through channel (5), and all the through channels (5), all the cavities and the vacuumizing channel (3) are communicated with one another;

the corrugated paper is formed by bonding a surface paper layer (11) and a wave-shaped corrugated paper layer (12), and the through channel (5) penetrates through the surface paper layer (11) and the wave-shaped corrugated paper layer (12);

the cross section of the corrugated paper layer (12) is in a sine wave shape, the plane of the corrugated paper layer (12) corresponding to the wave trough of the sine wave is bonded with the hanging surface paper layer (11), the other surface of the corrugated paper layer (12) corresponding to the wave crest of the sine wave faces the cavity, the corrugated paper layer (12) is processed by paper through a corrugated roller, and the thickness of the paper is greater than that of the hanging surface paper layer (11); the exposed directions of the corrugated paper layers (12) are consistent or vertical, and the thickness of the formed wave of the corrugated paper layers (12) is 3-5 mm.

2. The cellular structure vacuum insulation box according to claim 1, characterized in that the insulation board (100) further comprises a waterproof film layer encasing the vacuum protection skin (2) and the sealing element (4) therein.

3. The honeycomb structure vacuum insulation can of claim 1, characterized in that the cross section of the cavity of the honeycomb core (1) is regular hexagon, and the honeycomb core (1) is made by bonding corrugated paper into numerous honeycomb three-dimensional structures in the form of hollow regular hexagon.

4. A process for manufacturing a honeycomb structure vacuum insulation can, characterized in that the honeycomb structure vacuum insulation can of any one of claims 1 to 3 is manufactured, comprising the steps of:

step two, fixing the heat insulation plate: fixing each metal plate on a corresponding heat insulation plate, wherein each heat insulation plate comprises a honeycomb core and a vacuum protection surface layer, the honeycomb core is wrapped in the vacuum protection surface layer, a waterproof film is added on the periphery of each heat insulation plate, the size of an upper waterproof film layer is larger than that of the upper surface of each heat insulation plate, vacuumizing is performed on the side wall or the lower surface of each heat insulation plate, then the waterproof film layer is attached, and finally the redundant waterproof film of the upper waterproof film layer is attached to the lower surface; the metal plate is fixed on the vacuum protection surface layer;

step three, assembling the metal plate: finishing the assembly of the metal plate fixed with the heat-insulation plate in the second step;