WO2016050191A1

WO2016050191A1 - Encapsulation method and encapsulation device for vacuum insulation panel

Info

Publication number: WO2016050191A1
Application number: PCT/CN2015/090940
Authority: WO
Inventors: 张陇平; 叶美琴
Original assignee: 福建赛特新材股份有限公司
Priority date: 2014-09-29
Filing date: 2015-09-28
Publication date: 2016-04-07
Also published as: CN105526467B; CN105526467A

Abstract

An encapsulation method for a vacuum insulation panel: step one: placing a filling core material 90 between an upper barrier film 91 and a lower barrier film 92 under the condition of vacuum, and compressing the filling core material to a preset position; step two: pressing the upper barrier film, which extends out of the filling core material, down onto the lower barrier film to fix and smooth the upper barrier film and the lower barrier film; and step three: sealing the upper barrier film which extends out of the filling core material and the lower barrier film. The encapsulation method for a vacuum insulation panel can not only increase the encapsulation efficiency and decrease costs, but can also guarantee the requirement of vacuum degree, and also provides an encapsulation device for realizing the above-mentioned encapsulation method.

Description

Packaging method and packaging device for vacuum insulation board

Technical field

The invention relates to the field of packaging technology, and particularly relates to a packaging method and a packaging device for a vacuum insulation panel.

Background technique

Vacuum insulation board (VIP board) Vacuum Insulation Panel is one of the vacuum insulation materials. It is composed of a filled core material, a gas adsorbent and a barrier bag, which effectively avoids heat transfer caused by air convection and gas molecule conduction, so that the thermal conductivity can be greatly reduced, less than 0.003 w/mk, and does not contain any ODS. The materials are environmentally friendly and energy efficient, so vacuum insulation panels can be used in a wide range of industries.

The existing production method of the vacuum insulation board mainly has the following three steps: Step 1: Firstly, two pieces of the barrier film (the upper barrier film and the lower barrier film) are made into a bag with one side open and three sides sealed, that is, a barrier bag is prepared; Step 2 : Put the filled core material into the barrier bag made by the first step to take a vacuum; Step 3: Under the vacuum condition, seal the side of the opening of the barrier bag (because the barrier film contains thermoplastic resin, it can be under a certain temperature and pressure) Fusion heat sealing), that is, the packaging of the vacuum insulation board is completed.

However, existing production methods have the following disadvantages:

First, when vacuuming, because the barrier bag is open on one side, the flow guide is small, it takes a long time to reach the required vacuum degree, which consumes a lot of manpower and material resources, and the production cost is high;

Second, the use of this method not only affects the efficiency of the package, but also makes it difficult to obtain an accurate vacuum.

Therefore, the inventors further studied this and developed a packaging method and a packaging device for a vacuum insulation panel, and the present invention was produced.

Summary of the invention

It is an object of the present invention to provide a method for packaging a vacuum insulation panel, which not only improves the efficiency of the package, reduces the cost, but also ensures the vacuum degree.

Another object of the present invention is to provide a packaging device for a vacuum insulation panel capable of quickly packaging a vacuum insulation panel.

In order to achieve the above object, the technical solution of the present invention is as follows:

A vacuum insulation panel packaging method:

Step 1: under vacuum conditions, placing a filled core material between the upper barrier film and the lower barrier film, and compressing the filled core material to a predetermined position;

Step 2: pressing the upper barrier film down to the side of the upper barrier film and the lower barrier film, so that the filled core material is adhered between the upper barrier film and the lower barrier film;

Step 3: The upper barrier film and the lower barrier film are extended to be sealed.

Further, in the first step, the vacuum condition is 1 to 5 × 10 ^-2 Pa.

Further, the size of the upper barrier film is greater than or equal to the size of the lower barrier film.

Further, the upper barrier film and the lower barrier film contain one or a combination of two or more of PE, CPP, PP, and EVOH.

A vacuum insulation panel packaging method:

Step 1: pre-compressing the filled core material to a predetermined position;

Step 2: placing the compressed core material under the upper barrier film and the lower barrier film under vacuum conditions;

Step 3: pressing the upper barrier film down to the side of the upper barrier film and the lower barrier film, so that the filled core material is adhered between the upper barrier film and the lower barrier film;

Step 4: The upper barrier film and the lower barrier film are extended to perform four-side sealing.

A packaging device for a vacuum insulation panel: comprising an elastic bottom plate, a pressing block, a shaping module, a sealing knife and a fixing member connected to the power source;

The fixing member is disposed opposite to the elastic bottom plate, the pressing block and the shaping module are disposed on a side of the fixing member adjacent to the elastic bottom plate; and the retaining space is provided between the pressing block and the fixing member; The shaping module is located outside the pressing block, and the sealing knife is located outside the shaping module;

The fixing member drives the pressing block, the shaping module and the sealing knife to move together in a direction close to the elastic bottom plate under the driving of the power source.

Further, the fixing member is provided with a limiting shaft, and one end of the limiting shaft extends out of the fixing member and is connected with the pressing block, and the limiting shaft limits the stroke of the pressing block to move up and down.

Further, an elastic member is further included, and the elastic member is disposed on the limiting shaft.

Further: the elastic bottom plate is made of one of silica gel or nitrile rubber.

Further: an insulating plate is further disposed between the fixing member and the pressing block.

A packaging device for a vacuum insulation panel: comprising an elastic bottom plate, a shaping module, a sealing knife and a fixing member connected to the power source;

The fixing member is disposed opposite to the elastic bottom plate, and the shaping module is disposed on a side of the fixing member adjacent to the elastic bottom plate; the sealing knife is located outside the shaping module;

The fixing member drives the shaping module and the sealing knife to move together in a direction close to the elastic bottom plate under the driving of the power source.

After adopting the packaging device of the invention, the upper barrier film, the filled core material and the lower barrier film are first stacked on the elastic bottom plate, the power source controls the movement of the fixing member, the fixing member drives the pressing block to move downward, and is filled by the pressing block. The core material is compressed, and the compact is moved to the letting space, and the shaping module just presses the upper barrier film extending out of the four sides of the filled core material to the lower barrier diaphragm, that is, the upper barrier diaphragm and the lower barrier diaphragm are fixed and leveled, and at the same time The sealing knife is used to extend the upper barrier film and the lower barrier film of the filled core material to complete a packaging cycle.

In addition, the filled core material may be pre-compressed and then placed between the upper barrier film and the lower barrier film, and the upper barrier film extending from the four sides of the filled core material is pressed down to the lower barrier by using a shaping module in the packaging device. The film, that is, the upper barrier film and the lower barrier film are fixed and leveled, and at the same time, the sealing film is used to extend the upper barrier film and the lower barrier film of the filled core material to complete a packaging cycle.

Compared with the prior art, the invention has the following advantages:

1. When vacuuming, it can be carried out in all directions of filling the core material, and the vacuum guiding is greatly improved compared with the barrier bag which is opened at one side in the prior art, the vacuuming time is saved, and the production cost is reduced;

2. The method of the invention is simple, the packaging efficiency is high, and an accurate vacuum degree can be obtained;

3. The packaging device of the invention has the advantages of simple structure, and three actions of compression, leveling and heat sealing can be completed in one cycle, and the packaging efficiency is high.

DRAWINGS

Figure 1 is a schematic view of a packaging device of the present invention;

Figure 2 is a schematic view showing the initial state of the packaging device of the present invention;

Label description

Elastic bottom plate 1; pressure block 2; shaping module 3;

Sealing knife 4; fixing member 5; letting space 6;

Limiting shaft 7; elastic member 81; insulating plate 82;

The core material 90 is filled; the upper barrier film 91; and the lower barrier film 92.

detailed description

The invention will now be further described with reference to the drawings and specific embodiments.

The packaging method of the vacuum insulation panel disclosed by the invention mainly consists of the following three steps. Step 1: Under vacuum conditions, the filled core material is placed between the upper barrier film and the lower barrier film, and the core material is compressed and filled to a predetermined position. The smaller the thickness of the filled core material, the smaller the deviation between the upper barrier film and the lower barrier film; Step 2: Pressing the side of the upper barrier film extending out of the filled core material to the lower barrier film to fix the upper barrier film and the lower barrier film; Step 3: extending the upper barrier film and the lower barrier film Fit the seal.

In the first step, the vacuum condition is preferably from 1 to 5 × 10 ^-2 Pa. The lower the pressure value, the higher the requirements for production equipment and the higher the cost. In step two, the size of the upper barrier film is greater than or equal to the size of the lower barrier film. The thermoplastic resin contained in the upper barrier film and the lower barrier film in the present invention is preferably PE (polyethylene), CPP (cast polypropylene film), PP (polypropylene) or EVOH (ethylene/vinyl alcohol copolymer).

Embodiment 1

Hereinafter, an upper barrier film containing PE and a lower barrier film are taken as an example, and reference is made to FIG.

Step 1: under vacuum condition of 2×10 ^-2 Pa, the filled core material is placed between the upper barrier film and the lower barrier film, and the core material is compressed and filled to a predetermined position;

Step 2: the size of the upper barrier film is larger than the size of the lower barrier film, and the side of the upper barrier film extending out of the filled core material is pressed down to the lower barrier film, so that the upper barrier film and the lower barrier film are fixed and flat; The filled core material has a thickness such that the upper resistive diaphragm and the lower barrier membrane have different areas for use on a filled core material, and the four corners of the seal have wrinkles.

Step 3: Extend the upper barrier film and the lower barrier film to perform four-side adhesive sealing. Since both the upper barrier film and the lower barrier film contain a thermoplastic resin, PE is preferably used in the present embodiment, and is preferably 120 to 180 ° C in a certain temperature at a certain temperature, and can be fused and leveled under pressure. With this feature, although the four corners of the seal have wrinkles, it can also ensure an accurate vacuum, so that the leak rate can meet the requirements.

Embodiment 2

Referring to FIG. 2, the difference between the embodiment and the first embodiment is that the filling core material is compressed to a predetermined position in advance; the compressed core material is placed under the upper barrier film and the lower barrier film, and the remaining steps and examples One is the same, so I won't go into details.

Embodiment 3

Referring to Figures 1 and 2, the present invention also discloses a packaging device comprising an elastic bottom plate 1, a pressing block 2, a shaping module 3, a sealing knife 4 and a fixing member 5. The fixing member 5 is disposed opposite to the elastic bottom plate 1, and the fixing member 5 is connected to the power source. The power source in the embodiment refers to a power device that can drive the movement of the fixing member 5, such as a motor, a hydraulic cylinder or a cylinder.

The shaping module 3 and the pressing block 2 are slidably disposed on the fixing member 5, and the shaping module 3 functions to extend the plastic module 90 when the pressing block 2 is pressed down to fill the core material 90. The side of the upper barrier film 91 of 90 is pressed down to the lower barrier film 92, so that the upper barrier film 91 and the lower barrier film 92 are fixed flat.

The sealing blade 4 is fixed to the fixing member 5; the sealing blade 4 functions to fuse the thermoplastic resin in the upper barrier film 91 and the lower barrier film 92 by a certain temperature and pressure, thereby sealing the filled core member 90.

There is a yield space 6 between the pressing block 2 and the fixing member 5. The letting space 6 of the present invention refers to the reverse pressure of the filling core material 90 while pressing the core material 90 under the pressing block 2, forcing the reverse pressure of the filling core material 90, forcing The upward stroke of the clamp 2 when the clamp 2 is moved upward.

The shaping module 3 is located outside the pressing block 2, the sealing knife 4 is located outside the shaping module 3, and the elastic bottom plate 1 is located below the pressing block 2, the shaping module 3, the sealing knife 4 and the fixing member 5.

Further, the fixing member 5 is provided with a limiting shaft 7 extending outside the fixing member 5, the pressing block 2 is slidably disposed on the exposed end of the limiting shaft 7, and the limiting shaft 7 limits the stroke of the pressing block 2 to move up and down . Of course, other methods can be used as long as the stroke for controlling the up and down movement of the clamp 2 can be realized.

Further, an elastic member 81 is further included, and the elastic member 81 is bored on the limiting shaft 7. The elastic member 81 can make the pressing block 2 slide more smoothly on the limiting shaft 7. In the present embodiment, the elastic member 81 is a spring.

Further, the elastic base plate 1 is made of one of silica gel or nitrile rubber. Other thermoplastic materials can be used as long as they meet the requirements of heat resistance and elasticity.

Further, an insulating plate 82 is further disposed between the fixing member 5 and the pressing block 2. The insulating plate 82 functions as a heat insulator. In the present embodiment, the insulating plate 82 may be made of a polytetrafluoroethylene or epoxy material.

After the packaging device of the present invention is used, the upper barrier film 91, the filled core member 90 and the lower barrier film 92 are sequentially stacked on the elastic bottom plate 1, the power source control fixing member 5 is moved downward, and the fixing member 5 drives the pressing block 2 The shaping module 3 and the sealing knife 4 move downward, and the pressing block 2 compresses the filling core material 90, and at the same time, the filling core material 90 has a reaction force against the pressing block 2, and the pressing block 2 is moved to the letting space, and the shaping module 3 is just right. The upper barrier film 91 extending out of the four sides of the filled core member 90 is pressed down to the lower barrier film 92, thereby fixing the upper barrier film and the lower barrier film to be leveled. At the same time, the sealing knife 4 is used to extend the side of the upper barrier film 91 extending out of the filling core 90 and the lower barrier film 92 to seal the sealing, that is, a packaging cycle is completed. The structure of the invention is simple, and the three actions of compression, leveling and heat sealing can be completed in one cycle, and the packaging efficiency is high.

Embodiment 4

The present invention also discloses a packaging device which differs from the third embodiment in that the compact 2 is reduced. The filled core material 90 is pre-compressed and then placed between the upper barrier film 91 and the lower barrier film 92, and the upper barrier film 91 extending out of the four sides of the filled core material 90 is pressed down by using the shaping module 3 in the packaging device. The lower barrier film 92, that is, the upper barrier film 91 and the lower barrier film 92 are fixed and leveled. At the same time, the upper barrier film 91 and the lower barrier film 92 extending out of the filled core member 90 are sealed by using the sealing blade 4, that is, one package period is completed.

The above is only a specific embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by this concept should be an infringement of the scope of protection of the present invention.

Industrial applicability

The invention reduces the steps of first forming the upper and lower barrier films, and improves the efficiency.

Claims

A packaging method for a vacuum insulation panel, characterized in that:

Step 1: under vacuum, the filling core material is placed between the upper barrier film and the lower barrier film, the filling core material to a predetermined position;

Step 2: pressing the upper barrier film extending out of the filled core material onto the lower barrier film, and bonding the filled core material between the upper barrier film and the lower barrier film;

Step 3: sealing the upper barrier film and the lower barrier film extending out of the filled core material.
The method of packaging a vacuum insulation panel according to claim 1, wherein in the first step, the vacuum condition is 1 to 5 × 10 -2 Pa.
The method of packaging a vacuum insulation panel according to claim 1, wherein the size of the upper barrier film is greater than or equal to the size of the lower barrier film.
The method of packaging a vacuum insulation panel according to claim 1, wherein the upper barrier film and the lower barrier film contain one or a combination of two or more of PE, CPP, PP, and EVOH.
A packaging method for a vacuum insulation panel, characterized in that:

Step 1: pre-compressing the filled core material to a predetermined position;

Step 2: placing the compressed core material under the upper barrier film and the lower barrier film under vacuum conditions;

Step 3: pressing the upper barrier film extending out of the filled core material onto the lower barrier film, and the filling the core material is pasted between the upper barrier film and the lower barrier film;

Step 4: The upper barrier film and the lower barrier film extending out of the filled core material are sealed on four sides.
A packaging device for a vacuum insulation panel using the packaging method according to claim 1, comprising: an elastic bottom plate, a pressing block, a shaping module, a sealing knife and a fixing member connected to the power source;

The fixing member is disposed opposite to the elastic bottom plate, the pressing block and the shaping module are disposed on a side of the fixing member adjacent to the elastic bottom plate; and the retaining space is provided between the pressing block and the fixing member; The shaping module is located outside the pressing block, and the sealing knife is located outside the shaping module;

The fixing member drives the pressing block, the shaping module and the sealing knife to move together in a direction close to the elastic bottom plate under the driving of the power source.
The packaging device for a vacuum insulation panel according to claim 6, wherein the fixing member is provided with a limiting shaft, and one end of the limiting shaft extends out of the fixing member and is connected to the pressing block. The limiting shaft limits the stroke of the pressing block up and down.
A packaging device for a vacuum insulation panel according to claim 7, further comprising an elastic member, the elastic member being disposed on the limiting shaft.
A packaging device for a vacuum insulation panel according to claim 6, wherein the elastic bottom plate is made of one of silica gel or nitrile rubber.
A packaging device for a vacuum insulation panel according to claim 6, wherein an insulating plate is further disposed between the fixing member and the pressing block.
A packaging device for a vacuum insulation panel using the packaging method according to claim 5, comprising: an elastic bottom plate, a shaping module, a sealing knife and a fixing member connected to the power source;

The fixing member is disposed opposite to the elastic bottom plate, and the shaping module is disposed on a side of the fixing member adjacent to the elastic bottom plate; the sealing knife is located outside the shaping module;

The fixing member drives the shaping module and the sealing knife to move together in a direction close to the elastic bottom plate under the driving of the power source.