CN102173057A - Foaming equipment, foaming process and foaming process for refrigeration equipment - Google Patents
Foaming equipment, foaming process and foaming process for refrigeration equipment Download PDFInfo
- Publication number
- CN102173057A CN102173057A CN2011100078356A CN201110007835A CN102173057A CN 102173057 A CN102173057 A CN 102173057A CN 2011100078356 A CN2011100078356 A CN 2011100078356A CN 201110007835 A CN201110007835 A CN 201110007835A CN 102173057 A CN102173057 A CN 102173057A
- Authority
- CN
- China
- Prior art keywords
- foaming
- wireway
- foaming machine
- machine according
- space
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Molding Of Porous Articles (AREA)
Abstract
The invention discloses foaming equipment used for foaming a pre-assembled component. A foaming space is defined in the pre-assembled component. The foaming equipment comprises a foaming mold, a first pumping mechanism, a second pumping mechanism and a first negative pressure providing device, wherein the foaming mold comprises a first mold and a second mold; the first mold and the second mold are mutually matched to define a cavity; the first pumping mechanism is communicated with the cavity; the second pumping mechanism is arranged in the foaming space, extends in the foaming space, and is communicated with the cavity; and the first negative pressure providing device is connected with the first pumping mechanism and is used for forming negative pressure in the foaming space. In the foaming equipment, through the second pumping mechanism extending in the foaming space, the negative air pressure can be uniformly transmitted to the foaming space, so that a heat insulation layer obtained through foaming has better heat insulation effect; moreover, a foaming raw material can be saved and the cost is reduced. The invention discloses a foaming process employing the foaming equipment, and a foaming process for refrigeration equipment.
Description
Technical field
The present invention relates to refrigeration plant and make the field, especially relate to a kind of foaming machine, the foam process that adopts described foaming machine and the foam process of refrigeration plant.
Background technology
Refrigeration plant in the market mainly is made of refrigeration system and insulation casing, and wherein being incubated casing generally is to utilize following technology to make:
With the shell of refrigeration plant, the housing that the inner bag assembly unit becomes a relative closure, and the filled mouthful of foaming raw material is set on an end face of housing, and places the higher environment of temperature to deposit a period of time casing, make the abundant preheating of casing.Then casing is packed into and clamp sealing in the foaming mould.After this deployed foaming raw material is injected in the empty van body by filled mouthful of reserving on the casing, in subsequently 5～10 minutes, chemical reaction takes place in blowing agent in the space that casing surrounded, fully be expanded to and be full of the space that whole box body surrounds, and cooled and solidified, so far the incubator system is finished.
Because the whole process of foam box all is in normal atmosphere and depresses, but and casing be clamped in relative closure not fully the sealing foaming mould in, when the foamed material fast foaming expands, the air that originally was retained in the casing is squeezed, and from the slit of foaming mould, discharge, this moment, the air pressure in the casing was apparently higher than ambient air pressure, thereby caused:
1, the air that part fails in time to discharge in the foaming process can infiltrate foamed material and form big pore, causes casing to form the partial insulation weak spot, and overall thermal conductivity is higher;
2, box house is because of the foaming raw material rapid expanding, and the case inner high voltage that freely do not cause of exhaust, prolonged the time cycle that foaming raw material is full of whole box body, limited production capacity;
3, because fill cycle is elongated, and foaming raw material is in foaming process, its hardness increases, and multiple factors such as flowability, plasticity reduction, make that filled mouthful of near-end foamed material density is higher, and lower, thereby make that the whole box body thermal conductivity factor is inhomogeneous, the bulk article individual difference is big away from the foamed material density that fills mouth.
4, refrigeration plant is in actual production, because above-mentioned weak point often needs to fill more foaming raw material and reaches corresponding heat-insulating property, causes cost higher, and problems such as the environmental protection that involves thus, the energy.
Summary of the invention
The present invention is intended to solve at least one of technical problem that exists in the prior art.
For this reason, one object of the present invention is to propose a kind of foaming machine, and described foaming machine can make the heat-insulating property of the heat-insulation layer that obtains after the foaming better, and can save foaming raw material, reduces cost.
Another object of the present invention is to propose a kind of foam process, and described foam process adopts above-mentioned foaming machine to foam.
The foam process that is to propose a kind of refrigeration plant a purpose of the present invention.
Foaming machine according to first aspect present invention embodiment, be used for pre-arrangement is foamed, be limited with the foaming space in the described pre-arrangement, described foaming machine comprises: foaming mould, described foaming mould comprises first mould and second mould, the die cavity that described first mould and second mould cooperatively interact and be suitable for holding described pre-arrangement to limit; First extraction sector, described first extraction sector are communicated with the gas that is used to extract out in the described die cavity with described die cavity; Second extraction sector, described second extraction sector are located in the described foaming space and extend in described foaming space and arrange that wherein said second extraction sector is communicated with described die cavity; With the first negative pressure generator, the described first negative pressure generator links to each other with described first extraction sector and is used for forming negative pressure in described foaming space.
Foaming machine according to the embodiment of the invention, extend second extraction sector of arranging by adopting in the foaming space, air negative pressure can be delivered in the foaming space uniformly, thereby the heat-insulating property of the heat-insulation layer that obtains after foaming is better, and can save foaming raw material, reduce cost.
In addition, also have following additional technical feature according to foaming machine of the present invention:
Described second extraction sector comprises: wireway, described wireway is fixed in the described foaming space by fixed mechanism.
In one embodiment of the invention, be provided with dividing plate in the described wireway, described dividing plate is divided into two spaces at least along extending axially with the inner chamber with described wireway of described wireway; Be formed with a plurality of pores on the tube wall of described wireway.
In an example of the present invention, the cross section of described dividing plate is a rectangle.
In another example of the present invention, the cross section of described dividing plate is a cross.
In another example of the present invention, described dividing plate is divided into three spaces with the inner chamber of described wireway, and wherein the cross section in each space is fan-shaped.
In an example of the present invention, described pore evenly distributes along the axial direction of described wireway.
Alternatively, the distance between adjacent two described pores is 30-200mm.
Further alternatively, the distance between adjacent two described pores is 50mm.
In another example of the present invention, from first end of described wireway to the described first end second opposed end, described pore increases progressively gradually along the axial directional distribution density of described wireway, and the distance between two adjacent described pores is 30-200mm.
Wherein, the distance L between adjacent two described pores is:
L＝30+(20×n)；
Wherein, n is natural number and 0≤n＜9.
Increase progressively to the density between the axial adjacent pore of second end by first end that makes wireway, can compensate the barometric gradient vertically of wireway, can more equably negative pressure be passed to the foaming space in everywhere.
Alternatively, described wireway is provided with the ventilative filtering layer that is used to cover described a plurality of pores, and described ventilative filtering layer can stop that expanded material enters in the wireway when seeing through air.
In another embodiment of the present invention, be formed with on the tube wall of described wireway along its axially extended air drain.
In an example of the present invention, from first end of described wireway to the described first end second opposed end, the width of described air drain is even along the axial direction of described wireway.
Alternatively, the width of described air drain is 1-3mm.
Further alternatively, the width of described air drain is 1.5mm.
In another example of the present invention, from first end of described wireway to the described first end second opposed end, the width of described air drain subtracts greatly gradually along the axial direction of described wireway.Thus, can compensate wireway axially on barometric gradient, can more equably negative pressure be passed in the foaming space everywhere.
Alternatively, the width of the described air drain at the first end place of described wireway is 0.5-1.5mm, and the width of the described air drain at the second end place of described wireway is 1.5-3mm.
Further alternatively, the width of the described air drain at the first end place of described wireway is 1mm, and the width of the described air drain at the second end place of described wireway is 2mm.
In an example of the present invention, at described air guide inner coaxial tube and rotatably be provided with inner sleeve, be formed with on the tube wall of described inner sleeve along its axially extended notch.
Alternatively, described wireway is provided with the ventilative filtering layer that is used to cover described air drain, and described ventilative filtering layer can stop that expanded material enters in the wireway when seeing through air.
In another embodiment of the present invention, described wireway comprises: open tube, the tube wall of described open tube are provided with along its axially extended opening; And card article, described card article is located on the described open tube slidably to seal described opening.
Alternatively, described open tube is provided with the ventilative filtering layer that is used to cover described opening, and described ventilative filtering layer can stop that expanded material enters in the wireway when seeing through air.
In one embodiment of the invention, described fixed mechanism comprises: substrate, described substrate are located on the described pre-arrangement; And fixed claw, described fixed claw deformable ground is located at and is used to hold described wireway on the described substrate.
Alternatively, described fixed claw is a plurality of and a plurality of fixed claws axially being spaced apart from each other along described wireway.Thus, wireway axially is fixed on the case shell of pre-arrangement along it, to keep stable in pumping process.
In another embodiment of the present invention, described fixed mechanism comprises: side plate, described side plate be located on the described pre-arrangement and and described pre-arrangement between be formed with predetermined gap; With the wedging latch, an end of described wedging latch inserts in the described predetermined gap and the other end holds described wireway.
Alternatively, described wedging latch comprises: body, described body comprise mutually perpendicular first plate and second plate; Wedging portion, described wedging portion stretches out from the outer of described first plate; The location division, extend and parallel with described first plate from described second plate described location division; And limiting section, described limiting section is located between described wedging portion and described first plate and along the direction parallel with second plate and is recessed into; Wherein, described wedging portion is inserted in the predetermined gap between described side plate and the pre-arrangement, and described wireway is positioned in the space that limits between described location division and the described body.
Alternatively, described wedging latch is a plurality of and a plurality of wedging latches axially being spaced apart from each other along described wireway.Thus, wireway axially is fixed on the case shell of pre-arrangement along it, to keep stable in pumping process.
In some embodiments of the invention, described first extraction sector is an exhaust tube.
According to the foam process of second aspect present invention embodiment, adopt the foaming machine described in the above-mentioned first aspect embodiment, and may further comprise the steps:
(1) second extraction sector is installed in the foaming space that limits in the described pre-arrangement;
(2) pre-arrangement is inserted in the described foaming mould and with described foaming mould sealing and reserve the interface of bleeding, the wherein said interface of bleeding is connected with first end of described second extraction sector;
(3) end of described first extraction sector is passed described foaming mould and link to each other with the described interface of bleeding, the other end of described first extraction sector links to each other with the negative pressure generator;
(4) start described negative pressure generator to extract the gas in the described foaming space out;
(5) in described foaming space, fill expanded material.
Preferably, after being reduced to 0.99-0.01 times of atmospheric pressure, the air pressure in the described foaming space in described foaming space, fills expanded material.
Foam process according to the refrigeration plant of third aspect present invention embodiment, adopt the foam process described in the above-mentioned second aspect embodiment, wherein, described pre-arrangement comprises the case shell and is located at the inner bag of described case shell inside that the zone that limits between the inwall of described case shell and the outer wall of inner bag is the foaming space.
According to the foam process of the embodiment of the invention,, can reduce the air pressure in the foaming space in the foaming process, thereby obtain the better heat-insulation layer of heat-insulating property by adopting the foaming machine of describing in the foregoing description.Simultaneously, because the gas in the foaming space is evenly taken away, can not cause the partial high pressure that exhaust is not smooth and produce, and then avoided gas to stretch into the big pore of formation in the expanded material, guarantee foaming quality, reduced the time cycle of foaming simultaneously, improved production capacity.
Additional aspect of the present invention and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment in conjunction with following accompanying drawing, wherein:
Fig. 1 is the schematic diagram of foaming machine according to an embodiment of the invention;
Fig. 2 is the side schematic view of foaming machine in accordance with another embodiment of the present invention, wherein is arranged with seal casinghousing in the foaming mould outside;
Fig. 3 is the assembling schematic diagram of second extraction sector in pre-arrangement of the foaming machine shown in Fig. 1;
Fig. 4 is the enlarged diagram that Fig. 3 centre circle shows A portion;
Fig. 5 is the schematic diagram according to first example of the wireway 30a of embodiments of the invention one, and the cross section of its median septum is a rectangle;
Fig. 6 be among Fig. 5 B-B to cutaway view;
Fig. 7 is the schematic diagram according to second example of the wireway 30a of embodiments of the invention one, and the cross section of dividing plate is a cross;
Fig. 8 be among Fig. 7 C-C to cutaway view;
Fig. 9 is the schematic diagram according to first example of the wireway 30b of embodiments of the invention two;
Figure 10 be among Fig. 9 D-D to schematic diagram;
Figure 11 is the schematic diagram according to second example of the wireway 30b of embodiments of the invention two;
Figure 12 is the schematic cross-section among Figure 11;
Figure 13 is the schematic diagram of the inner sleeve rotation among the wireway 30b shown in Figure 11;
Figure 14 is the schematic cross-section among Figure 13;
Figure 15 is the schematic perspective view according to the wireway 30b of embodiments of the invention two, wherein is provided with ventilative filtering layer on air drain;
Figure 16 is the schematic cross-section among Figure 15;
Figure 17 is the schematic diagram according to the wireway 30c of embodiments of the invention three;
Figure 18 is the schematic cross-section among Figure 17;
Figure 19 is the back upside schematic diagram that second extraction sector shown in Figure 3 assembles in pre-arrangement;
Figure 20 is the enlarged diagram that Figure 19 centre circle shows E portion;
Figure 21 is the back upside schematic diagram that second extraction sector assembles in the case shell of pre-arrangement, wherein shows the fixed mechanism according to first embodiment of the invention;
Figure 22 is the enlarged diagram that Figure 21 centre circle shows F portion;
Figure 23 is the vertical view that second extraction sector shown in Figure 21 assembles in the case shell of pre-arrangement;
Figure 24 is the amplification cross-sectional schematic that Figure 23 centre circle shows G portion;
Figure 25 is the back upside schematic diagram that second extraction sector assembles in the case shell of pre-arrangement, wherein shows the fixed mechanism according to second embodiment of the invention;
Figure 26 is the enlarged diagram that Figure 25 centre circle shows H portion;
Figure 27 is the vertical view that second extraction sector shown in Figure 25 assembles in the case shell of pre-arrangement;
Figure 28 is the enlarged diagram that Figure 27 centre circle shows I portion;
Figure 29 is the schematic diagram of the wedging latch in the fixed mechanism shown in Figure 25; And
Figure 30 is the schematic flow sheet according to the foam process of the embodiment of the invention.
Reference numeral:
1, foaming mould; 2, first extraction sector;
3, second extraction sector; 30, wireway; 31, fixed mechanism; 32, ventilative filtering layer
4, the first negative pressure generator;
200, pre-arrangement; 210, foaming space; 220, case shell; 230, inner bag
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, term " inboard ", " outside ", " vertically ", " laterally ", " on ", close the orientation of indications such as D score, " top ", " end " or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
Below with reference to the foaming machine of Fig. 1-Figure 29 description according to the embodiment of the invention, described foaming machine is used for pre-arrangement 200 is foamed.Come with the foaming machine of the refrigeration plant (for example refrigerator or refrigerator-freezer) that is used to foam below that the present invention will be described, wherein pre-arrangement 200 comprises case shell 220 and at the inner bag 230 that is located at case shell 220 inside, be limited with foaming space 210 between case shell 220 and the inner bag 230, be reserved with bleeding point 211 in this foaming space 210, as shown in Figure 3.Certainly, be understandable that foaming machine according to the present invention is not limited to be used for refrigeration plant, can also be used for the equipment that the needs of other type foam.
As Fig. 1-shown in Figure 29,, comprise foaming mould 1, first extraction sector 2, second extraction sector 3 and the first negative pressure generator 4 according to the foaming machine of the embodiment of the invention.
As Fig. 1-shown in Figure 2, foaming mould 1 comprises the die cavity 13 that first mould 11 and second mould, 12, the first moulds 11 and second mould 12 cooperatively interact and be suitable for holding pre-arrangement 200 to limit.Be reserved with the interface 5 of bleeding on the foaming mould 1.First extraction sector 2 is communicated with by the interface 5 of bleeding with die cavity 13, is used to extract out the gas in the die cavity 13, and alternatively, first extraction sector 2 can be exhaust tube.Second extraction sector 3 is located in the foaming space 210 and extends in foaming space 210 and arrange that wherein second extraction sector 3 is communicated with die cavity 13.In one embodiment of the invention, second extraction sector 3 passes the bleeding point 211 in the foaming space 210 and is communicated with die cavity 13.The first negative pressure generator 4 links to each other with first extraction sector 2 and is used for forming negative pressure in foaming space 210.
Thus, when starting the first negative pressure generator 4, first extraction sector 2 extracts the gas in the die cavity 13 to form negative pressure out, the space 210 interior gases that foam simultaneously are pressed in the die cavity 13 by second extraction sector 3, can will form uniform air negative pressure in the foaming space 210 thus, avoid air residual and penetrate into the big pore of formation in the foamed material, influenced the heat insulation effect of foaming back product.
Foaming machine according to the embodiment of the invention, extend second extraction sector of arranging by adopting in the foaming space, air negative pressure can be delivered in the foaming space uniformly, thereby the heat-insulating property of the heat-insulation layer that obtains after foaming is better, and can save foaming raw material, reduce cost.
In one embodiment of the invention, foaming machine further comprises seal (figure does not show), seal is located on the contact-making surface between first mould 11 and second mould 12 with sealing die cavity 13, thereby can keep low pressure in the foaming space and then guarantee foaming quality in foaming process.Alternatively, seal is a sealing gasket.Particularly, seal can be located on first mould 11 and the surface that second mould 12 contacts, perhaps is located on second mould 12 and the surface that first mould 11 contacts, can also be provided with respectively on the contact surface on first mould 11 and second mould 12.
In further embodiment of the present invention, as shown in Figure 2, foaming machine further comprises seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8, wherein be enclosed within to seal casinghousing 6 sealings the outside of the foaming mould 1 and the first negative pressure generator 4, the intracavity inter-connection of outer extraction sector 7 and seal casinghousing 6, and the second negative pressure generator 8 links to each other to form negative pressure in the inner chamber of seal casinghousing 6 with outer extraction sector 7.Like this, the first negative pressure generator 4 is extracted into the gas in die cavity 13 and the foaming space 210 in the inner chamber of seal casinghousing 6, the second negative pressure generator 8 is extracted the gas in seal casinghousing 6 inner chambers out by outer extraction sector 7, thereby makes the die cavity 13 interior air pressure of foaming mould 1 be lower than the inner chamber of seal casinghousing 6 with the vacuum in the die cavity 13 that improves pre-arrangement 200 places.
In some embodiments of the invention, seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8 are respectively a plurality of (figure does not show).A plurality of seal casinghousings 6 are sheathed successively from inside to outside, so that limit at a plurality of sealed cavities between the seal casinghousing 6 successively, wherein are enclosed within to seal casinghousing 6 sealings of innermost layer the outside of the foaming mould 1 and the first negative pressure generator 4.A plurality of second negative pressure generators 8 are separately positioned in a plurality of sealed cavities and outermost seal casinghousing 6 outsides, and a plurality of outer extraction sectors are corresponding one by one with a plurality of second negative pressure generators 8, and be communicated with in the sealed cavity of each outer extraction sector with the internal layer of each second negative pressure generator 8 and its place sealed cavity, so that the inner chamber of outermost layer seal casinghousing 6 to the foaming space 210 of innermost layer has formed a barometric gradient of successively decreasing, and then further improved vacuum in the die cavity 13 at pre-arrangement 200 places.
As shown in Figure 3 and Figure 4, in one embodiment of the invention, second extraction sector 3 comprises wireway 30 and fixed mechanism 31, and wherein wireway 30 is fixed in the foaming space 210 by fixed mechanism 31 and extends in foaming space 210 and arrange.The bleeding point 211 that one end of wireway 30 passes in the foaming space 210 is communicated with die cavity 13, like this, when the first negative pressure generator 4 starts, gases in the foaming space 210 enter in the die cavity 13 by wireway 30 and the gas in die cavity 13 by first extraction sector 1 for example exhaust tube be drawn out of, thereby the gas in foaming space 210 in time discharge reduce residual so that the foaming interior volume forms even negative pressure.
To illustrate according to wireway 30 of the present invention with a plurality of embodiment below.It should be noted that; below be that pipe is that example describes all with the profile of wireway; but be understandable that; wireway of the present invention is not limited to pipe; the cross-sectional circumference shape of wireway can also all fall within the scope of protection of the present invention for quadrangle or more than the polygon on four limits and similar shape.In addition, hereinafter the corner part that all is located at the case shell 220 of pre-arrangement 200 with wireway 30 is that example describes, and wireway 30 extends along the longitudinal direction of case shell 220.But be understandable that the present invention is not limited to this, wireway 30 can also be located at other positions in the foaming space 210, all falls within the scope of protection of the present invention.In addition, the one of ordinary skilled in the art it will also be appreciated that, can comprise a plurality of and be located in the case shell 220 for example corner simultaneously according to the wireway 30 of the embodiment of the invention, correspondingly, also be provided with a plurality of bleeding points 211 on the pre-arrangement 200, and a plurality of wireway 30 passes a plurality of bleeding points 211 backs and all is communicated with die cavity 13.
Embodiment one,
In the present embodiment, wireway indicates with 30a.As Fig. 5-shown in Figure 8, be provided with dividing plate 301a in the wireway 30a, dividing plate 301a is divided into two spaces at least along extending axially with the inner chamber with wireway 30a of wireway 30a, and can play the effect of the intensity that supports wireway 30a.On the tube wall of wireway 30a, be formed with a plurality of pore 302a, to strengthen the effect of bleeding to each zone in the foaming space 210.Alternatively, pore 302a along the axial direction of wireway 30a linear or spiral distribution.
As shown in Figure 5 and Figure 6, in an example of the present invention, the cross section of dividing plate 301a is a rectangle, that is to say, dividing plate 301a can be a flat board so that the cross section of wireway 30a approximately is " day " type, and promptly dividing plate 301a has been divided into two spaces with wireway 30a inner chamber.As shown in Fig. 5 and Fig. 6, pore 302a has for example two row or three row of multiple row along the axial directional distribution of wireway 30a.Alternatively, multiple row pore 302a can circumferentially evenly distributing around described wireway 30a.Perhaps when wireway 30a is located at the corner of case shell 220, pore 302a concentrates on the side in the foaming space 210 of wireway 30a.
As shown in Figure 7 and Figure 8, in an example of the present invention, the cross section of dividing plate 301a is a cross.That is to say, " field " type that dividing plate 301a is configured to that the cross section of wireway 30a approximately is, promptly dividing plate 301a has been divided into four spaces with wireway 30a inner chamber.As shown in Fig. 7 and Fig. 8, pore 302a is provided with a row pore 302a particularly at least along the axial directional distribution of wireway 30a in each space of wireway 30a inner chamber.
In another example of the present invention, dividing plate 301a also can be divided into the inner chamber of wireway 30a three spaces, and wherein the cross section in each space is fan-shaped.Certainly, the setting of dividing plate 301a is not limited to this.In other embodiments of the invention, dividing plate 301a can also be divided into the inner chamber of wireway 30a more than four spaces.
In some embodiments of the invention, pore 302a evenly distributes along the axial direction of wireway 30a.Alternatively, the distance between adjacent two pore 302a is 30-200mm.Further alternatively, the distance between adjacent two pore 302a is 50mm.
In other embodiment of the present invention, the first end (upper end Fig. 3 and Fig. 4 from wireway 30a, promptly near an end of bleeding point 211) to the first end second opposed end one end of bleeding point 211 (promptly away from), pore 302a increases progressively gradually along the axial directional distribution density of wireway 30a, and the distance between two adjacent pore 302a is 30-200mm.
Alternatively, the distance L between adjacent two pore 302a is:
L＝30+(20×n)；
Wherein, n is natural number and 0≤n＜9, gets successively to the distance the axial adjacent pore of second end from first end of wireway 30a: n=8,7,6....., 0.
Increase progressively to the density between the axial adjacent pore of second end by first end that makes wireway 30a, can compensate the barometric gradient vertically of wireway 30a, can more equably negative pressure be passed in the foaming space 210 everywhere.
In some embodiments of the invention, wireway 30a is provided with the ventilative filtering layer 32 (figure does not show) that is used to cover a plurality of pore 302a, and ventilative filtering layer 32 can stop that expanded material enters in the wireway 30a from pore 302a when seeing through air.Alternatively, ventilative filtering layer is a breathable adhesive tape.Certainly, the present invention is not limited to this, and the present invention can also be HEPA filter paper, gluing or band gum etc., can stop that expanded material enters the requirement in the wireway 30a as long as satisfy when seeing through air.
Embodiment two,
In the present embodiment, wireway indicates with 30b.As Fig. 9-shown in Figure 16, be formed with on the tube wall of wireway 30b along its axially extended air drain 301b, so that the cross section of wireway 30b is " C " shape, to strengthen the effect of bleeding to each zone in the foaming space 210.Alternatively, in an example of the present invention, air drain 301b has the flange that extends radially outwardly along wireway 30b, as Fig. 9 and shown in Figure 10.
As shown in Figure 9, in an example of the present invention, from first end of wireway 30b one end of bleeding point 211 (promptly near) to the first end second opposed end one end of bleeding point 211 (promptly away from), the width of air drain 301b is even along the axial direction of wireway 30b.Alternatively, the width of air drain 301b is 1-3mm.Further alternatively, the width of air drain 301b is 1.5mm.
In another one example of the present invention, from first end of wireway 30b one end of bleeding point 211 (promptly near) to the first end second opposed end one end of bleeding point 211 (promptly away from), the width of air drain 301b subtracts greatly (scheming not shown) gradually along the axial direction of wireway 30b.Thus, can compensate wireway 30b axially on barometric gradient, can more equably negative pressure be passed in the foaming space everywhere.
In some of them embodiment of the present invention, the width of the air drain 301b at the first end place of wireway 30b is 0.5-1.5mm, and the width of the air drain 301b at the second end place of wireway 30b is 1.5-3mm.Alternatively, the width of the air drain 301b at the first end place of wireway 30b is 1mm, and the width of the air drain 301b at the second end place of wireway 30b is 2mm.
Certainly, the one of ordinary skilled in the art is understandable that, since the C type air drain 301b of the wireway 30b in the present embodiment in actual production owing to adopt extrusion process, groove width is a steady state value under the nature, but in the practical set, can make groove width gradual change in the axial direction, also can pass through other optional features by the clamping degree that changes fixture, for example the collar of different-diameter retrains its groove width, equally also can realize.
In examples more of the present invention, wireway 30b is provided with the ventilative filtering layer 32 that is used to cover air drain 301b, shown in Figure 15-16.Ventilative filtering layer 32 can stop that expanded material enters in the wireway 30b from air drain 301b when seeing through air.Alternatively, ventilative filtering layer is a breathable adhesive tape.Certainly, the present invention is not limited to this, and the present invention can also be HEPA filter paper, gluing or band gum etc., can stop that expanded material enters the requirement in the wireway 30b as long as satisfy when seeing through air.
In examples more of the present invention, coaxial and rotatably be provided with inner sleeve 302b in wireway 30b as shown in Figure 11-Figure 12, be formed with on the tube wall of inner sleeve 302b along its axially extended notch 303b.Like this, in the time of need bleeding in the space 210 to foaming, the notch 303b of inner sleeve 302b aims at the air drain 301b of wireway 30a, and thus, space 210 interior each the regional gas that foam are drawn out of by wireway 30b, thereby negative pressure can evenly be delivered to everywhere.And when the gas in the foaming space 210 is bled end, inner sleeve 302b can rotate predetermined angular in wireway 30b, the notch 303b of inner sleeve 302b no longer aims at the air drain 301b of wireway 30a, closed the air drain 301b of wireway 30b thus, and then can prevent that the expanded material of filling from entering in wireway 30b and remaining extraction sector.
Embodiment three,
In the present embodiment, wireway indicates with 30c.As Figure 17-shown in Figure 180, wireway 30c comprises open tube 301c and card article 302c, and wherein, the tube wall of open tube 301c is provided with along its axially extended opening 3010, and card article 302c is located at open tube 301c slidably and goes up to open and to seal this opening 3010.Alternatively, card article 302c is connected in the mode that chute cooperates with open tube 301c.
With inner sleeve among the embodiment two similarly, need be when bleeding in the foaming space 210, card article 302c is drawn out of, thus, each regional gas is drawn out of by open tube 301c in the foaming space 210, thus negative pressure can evenly be delivered to everywhere.And when the gas in the foaming space 210 was bled end, card article 302c was inserted into and is engaged on the opening 3010 of open tube 301c, has closed wireway 30c thus, and then can prevent that the expanded material of filling from entering in wireway 30c and remaining extraction sector.
Similarly, in some embodiments of the invention, can be provided with the ventilative filtering layer 32 (figure does not show) that is used to cover opening 3010 on the wireway 30c, ventilative filtering layer 32 can stop that expanded material enters in the wireway 30c from opening 3010 when seeing through air.Alternatively, ventilative filtering layer is a breathable adhesive tape.Certainly, the present invention is not limited to this, and the present invention can also be HEPA filter paper, gluing or band gum etc., can stop that expanded material enters the requirement in the wireway 30c as long as satisfy when seeing through air.
Illustrate according to fixed mechanism 31 of the present invention below with reference to Figure 19-Figure 29, wherein the wireway 30 fixed of fixed mechanism 31 is that example describes with the wireway 30a in the foregoing description one, be understandable that, the wireway among other embodiment or the pipe fitting of other types can adopt fixed mechanism 31 of the present invention to fix too, will enumerate no longer one by one in the description of the invention.
In one embodiment of the invention, fixed mechanism indicates with 31a, as shown in Figure 19-Figure 24, fixed mechanism 31a comprises substrate 311a and fixed claw 312a, wherein, substrate 311a is located on the pre-arrangement 200, and fixed claw 312a deformable ground is located at and is used to hold wireway 30 on the substrate 311a.Wherein, substrate 311a can be for the plate object on the some sidewalls that are located at pre-arrangement 200, and as shown in Figure 19-Figure 24, this substrate can be curve form so that fixing fixed claw 312a.Certainly, substrate 311a also can be some side plates of prepackage assembly 200 right plate (figure do not show) for example.
Alternatively, fixed claw 312a is a plurality of and a plurality of fixed claw 312a along axially being spaced apart from each other of wireway 30, as shown in figure 22.Thus, wireway 30 axially is fixed on the case shell 220 of pre-arrangement 200 along it, to keep stable in pumping process.Further alternatively, the axial spacing of adjacent two fixed claw 312a is 300mm.
In another embodiment of the present invention, fixed mechanism indicates with 31b, as shown in Figure 25-Figure 29, fixed mechanism 31 comprises side plate 311b and wedging latch 312b, its latus inframedium 311b be located on the pre-arrangement 200 and and pre-arrangement 200 between be formed with predetermined gap, the end of wedging latch 312b inserts in the predetermined gap and the other end holds wireway 30.Wherein, side plate 311b can be for the plate object on the some sidewalls that are located at pre-arrangement 200, and as shown in Figure 19-Figure 24, this substrate can be curve form so that fixing wedging latch 312b.Certainly, side plate 311b also can be some side plates of prepackage assembly 200 right plate (figure do not show) for example.
Particularly, as shown in figure 29, wedging latch 312b comprises: body, wedging portion 3123, location division 3124 and limiting section 3125, wherein body comprises mutually perpendicular first plate 3121 and second plate 3122, wedging portion 3123 stretches out from the outer of first plate 3121, extend and parallel with first plate 3121 from second plate 3122 location division 3124, and limiting section 3125 is located between the wedging portion 3123 and first plate 3121 and is recessed along the direction parallel with second plate 3122.Wherein, wedging portion 3123 is inserted in the predetermined gap between side plate 311b and the pre-arrangement 200, and wireway 30 is positioned in the space that limits between location division 3124 and the body, as shown in figure 28.
Alternatively, wedging latch 312b is a plurality of and a plurality of wedging latch 312b along axially being spaced apart from each other of wireway 30, as shown in figure 25.Thus, wireway 30 axially is fixed on the case shell 220 of pre-arrangement 200 along it, to keep stable in pumping process.Further alternatively, the axial spacing of adjacent two wedging latch 312b is 300mm.
Describe a kind of foam process according to the embodiment of the invention below with reference to Fig. 1, Fig. 2 and Figure 30, described foam process adopts the foaming machine of describing in the foregoing description.
Foam process according to the embodiment of the invention may further comprise the steps:
(1) second extraction sector 3 is installed in the foaming space 210 that limits in the pre-arrangement 200;
(2) pre-arrangement 200 is inserted in the foaming mould 1 and with foaming mould 1 sealing and reserve the interface 5 of bleeding, the interface 5 of wherein bleeding is connected with first end of second extraction sector 3;
(3) end of first extraction sector 2 is passed foaming mould 1 and link to each other with the interface 5 of bleeding, the other end of first extraction sector 2 links to each other with the first negative pressure generator 4;
When (4) the startup first negative pressure generator 4 makes the air pressure in foaming space 210 be reduced to 0.99-0.01 times of atmospheric pressure, in foaming space 210, fill expanded material.
Foam process according to a kind of refrigeration plant of the embodiment of the invention, adopt the foam process of describing in the foregoing description, wherein, pre-arrangement 200 comprises case shell 220 and is located at the inner bag 230 of case shell 220 inside that the zone that limits between the outer wall of the inwall of case shell 220 and inner bag 230 is foaming space 210.Wherein, case shell 220 and inner bag 230 are assembled by modes such as bolt, riveted joint, gummeds.
According to the foam process of the embodiment of the invention,, can reduce the air pressure in the foaming space in the foaming process, thereby obtain the better heat-insulation layer of heat-insulating property by adopting the foaming machine of describing in the foregoing description.Simultaneously, because the gas in the foaming space is evenly taken away, can not cause the partial high pressure that exhaust is not smooth and produce, and then avoided gas to stretch into the big pore of formation in the expanded material, guarantee foaming quality, reduced the time cycle of foaming simultaneously, improved production capacity.
Describe below with reference to Fig. 1-Figure 30 and to adopt foam process according to an embodiment of the invention the refrigeration plant process that foams of refrigerator for example.
As shown in Fig. 3, Figure 19-Figure 27, two wireways 30 are located at the left side wall 221 of case shell 220 and the corner between right side wall 222 and the front side 223 respectively, and two bleeding points 211 are located at the upper beam position of the front side of case shell 220 respectively, and two wireways 30 pass a plurality of bleeding points 211 backs and all are communicated with die cavity 13.
Then, as shown in fig. 1, insert pre-arrangement 200 in the foaming mould 1 and by seal with foaming mould 1 sealing, to guarantee the effect of bleeding in the foaming mould 1, on foaming mould 1, reserve the interface 5 of bleeding, first extraction sector 2 is communicated with die cavitys 13 inside for exhaust tube and an end pass the interface 5 of bleeding, and can be simultaneously takes away by the wireway 30 space 210 interior gases that will foams guaranteeing when bleeding, and the other end of exhaust tube connects the first negative pressure generator 4.
At this moment, start the first negative pressure generator 4, when making the air pressure in foaming space 210 be reduced to 0.99-0.01 times of atmospheric pressure by first extraction sector 2 and wireway 30, in foaming space 210, fill expanded material, treat expanded material fully expand and be full of the foaming space after, wait for cooled and solidified, thereby finished foaming process, made the heat-insulation layer of refrigeration plant.
In another embodiment of the present invention, as shown in Figure 2, be provided with one deck seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8 in the outside of foaming mould 1, wherein be enclosed within to seal casinghousing 6 sealings the outside of the foaming mould 1 and the first negative pressure generator 4, the intracavity inter-connection of outer extraction sector 7 and seal casinghousing 6, and the second negative pressure generator 8 links to each other to form negative pressure in the inner chamber of seal casinghousing 6 with outer extraction sector 7.Like this, the first negative pressure generator 4 is extracted into the gas in die cavity 13 and the foaming space 210 in the inner chamber of seal casinghousing 6, the second negative pressure generator 8 is extracted the gas in seal casinghousing 6 inner chambers out by outer extraction sector 7, thereby makes the die cavity 13 interior air pressure of foaming mould 1 be lower than the inner chamber of seal casinghousing 6 with the vacuum in the die cavity 13 that improves pre-arrangement 200 places.
Alternatively, seal casinghousing also can be multilayer, and outer extraction sector 7 and the second negative pressure generator 8 are respectively a plurality of (scheming not shown).Wherein, a plurality of seal casinghousings 6 are sheathed successively from inside to outside, so that limit at a plurality of sealed cavities between the seal casinghousing 6 successively, wherein are enclosed within to seal casinghousing 6 sealings of innermost layer the outside of the foaming mould 1 and the first negative pressure generator 4.A plurality of second negative pressure generators 8 are separately positioned in a plurality of sealed cavities and outermost seal casinghousing 6 outsides, and a plurality of outer extraction sectors are corresponding one by one with a plurality of second negative pressure generators 8, and be communicated with in the sealed cavity of each outer extraction sector with the internal layer of each second negative pressure generator 8 and its place sealed cavity, so that the inner chamber of outermost layer seal casinghousing 6 to the foaming space 210 of innermost layer has formed a barometric gradient of successively decreasing, and then further improved vacuum in the die cavity 13 at pre-arrangement 200 places.
In the description of this specification, concrete feature, structure, material or characteristics that the description of reference term " embodiment ", " some embodiment ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example description are contained at least one embodiment of the present invention or the example.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete feature, structure, material or the characteristics of description can be with the suitable manner combination in any one or more embodiment or example.
Although illustrated and described embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple variation, modification, replacement and modification to these embodiment under the situation that does not break away from principle of the present invention and aim, scope of the present invention is limited by claim and equivalent thereof.
Claims (32)
1. a foaming machine is used for pre-arrangement is foamed, and is limited with the foaming space in the described pre-arrangement, it is characterized in that described foaming machine comprises:
Foaming mould, described foaming mould comprise first mould and second mould, the die cavity that described first mould and second mould cooperatively interact and be suitable for holding described pre-arrangement to limit;
First extraction sector, described first extraction sector are communicated with the gas that is used to extract out in the described die cavity with described die cavity;
Second extraction sector, described second extraction sector are located in the described foaming space and extend in described foaming space and arrange that wherein said second extraction sector is communicated with described die cavity; With
The first negative pressure generator, the described first negative pressure generator link to each other with described first extraction sector and are used for forming negative pressure in described foaming space.
2. foaming machine according to claim 1 is characterized in that, described second extraction sector comprises: wireway, described wireway is fixed in the described foaming space by fixed mechanism.
3. foaming machine according to claim 2 is characterized in that, is provided with dividing plate in the described wireway, and described dividing plate is divided into two spaces at least along extending axially with the inner chamber with described wireway of described wireway;
Be formed with a plurality of pores on the tube wall of described wireway.
4. foaming machine according to claim 3 is characterized in that, the cross section of described dividing plate is a rectangle.
5. foaming machine according to claim 3 is characterized in that, the cross section of described dividing plate is a cross.
6. foaming machine according to claim 3 is characterized in that, described dividing plate is divided into three spaces with the inner chamber of described wireway, and wherein the cross section in each space is fan-shaped.
7. according to each described foaming machine among the claim 3-6, it is characterized in that described pore evenly distributes along the axial direction of described wireway.
8. according to the foaming machine described in the claim 7, it is characterized in that the distance between two adjacent described pores is 30-200mm.
9. the foaming machine described in according to Claim 8 is characterized in that the distance between two adjacent described pores is 50mm.
10. according to each described foaming machine among the claim 3-6, it is characterized in that, from first end of described wireway to the described first end second opposed end, described pore increases progressively gradually along the axial directional distribution density of described wireway, and the distance between two adjacent described pores is 30-200mm.
11. the foaming machine according to described in the claim 10 is characterized in that, the distance L between two adjacent described pores is:
L＝30+(20×n)；
Wherein, n is natural number and 0≤n＜9.
12. foaming machine according to claim 3 is characterized in that, described wireway is provided with the ventilative filtering layer that is used to cover described a plurality of pores.
13. foaming machine according to claim 3 is characterized in that, is formed with on the tube wall of described wireway along its axially extended air drain.
14. foaming machine according to claim 13 is characterized in that, from first end of described wireway to the described first end second opposed end, the width of described air drain is even along the axial direction of described wireway.
15. foaming machine according to claim 14 is characterized in that, the width of described air drain is 1-3mm.
16. foaming machine according to claim 15 is characterized in that, the width of described air drain is 1.5mm.
17. foaming machine according to claim 14 is characterized in that, from first end of described wireway to the described first end second opposed end, the width of described air drain subtracts greatly gradually along the axial direction of described wireway.
18. foaming machine according to claim 17 is characterized in that, the width of the described air drain at the first end place of described wireway is 0.5-1.5mm, and the width of the described air drain at the second end place of described wireway is 1.5-3mm.
19. foaming machine according to claim 18 is characterized in that, the width of the described air drain at the first end place of described wireway is 1mm, and the width of the described air drain at the second end place of described wireway is 2mm.
20. foaming machine according to claim 13 is characterized in that, at described air guide inner coaxial tube and rotatably be provided with inner sleeve, is formed with on the tube wall of described inner sleeve along its axially extended notch.
21. foaming machine according to claim 13 is characterized in that, described wireway is provided with the ventilative filtering layer that is used to cover described air drain.
22. foaming machine according to claim 2 is characterized in that, described wireway comprises:
Open tube, the tube wall of described open tube are provided with along its axially extended opening; With
Card article, described card article are located on the described open tube slidably to seal described opening.
23. foaming machine according to claim 22 is characterized in that, described open tube is provided with the ventilative filtering layer that is used to cover described opening.
24. foaming machine according to claim 2 is characterized in that, described fixed mechanism comprises:
Substrate, described substrate are located on the described pre-arrangement; With
Fixed claw, described fixed claw deformable ground are located at and are used to hold described wireway on the described substrate.
25. foaming machine according to claim 24 is characterized in that, described fixed claw is a plurality of and a plurality of fixed claws axially being spaced apart from each other along described wireway.
26. foaming machine according to claim 2 is characterized in that, described fixed mechanism comprises:
Side plate, described side plate be located on the described pre-arrangement and and described pre-arrangement between be formed with predetermined gap; With
The wedging latch, an end of described wedging latch inserts in the described predetermined gap and the other end holds described wireway.
27. foaming machine according to claim 25 is characterized in that, described wedging latch comprises:
Body, described body comprise mutually perpendicular first plate and second plate;
Wedging portion, described wedging portion stretches out from the outer of described first plate;
The location division, extend and parallel with described first plate from described second plate described location division; With
Limiting section, described limiting section are located between described wedging portion and described first plate and along the direction parallel with second plate and are recessed into;
Wherein, described wedging portion is inserted in the predetermined gap between described side plate and the pre-arrangement, and described wireway is positioned in the space that limits between described location division and the described body.
28. foaming machine according to claim 27 is characterized in that, described wedging latch is a plurality of and a plurality of wedging latches axially being spaced apart from each other along described wireway.
29. foaming machine according to claim 1 is characterized in that, described first extraction sector is an exhaust tube.
30. a foam process is characterized in that, adopts according to each described foaming machine among the claim 1-29, and may further comprise the steps:
(1) second extraction sector is installed in the foaming space that limits in the described pre-arrangement;
(2) pre-arrangement is inserted in the described foaming mould and with described foaming mould sealing and reserve the interface of bleeding, the wherein said interface of bleeding is connected with first end of described second extraction sector;
(3) end of described first extraction sector is passed described foaming mould and link to each other with the described interface of bleeding, the other end of described first extraction sector links to each other with the negative pressure generator;
(4) start described negative pressure generator to extract the gas in the described foaming space out;
(5) in described foaming space, fill expanded material.
31. the described foam process according to claim 30 is characterized in that, fills expanded material after the air pressure in the described foaming space is reduced to 0.99-0.01 times of atmospheric pressure in described foaming space.
32. the foam process of a refrigeration plant is characterized in that, adopts according to claim 30 or 31 described foam process, wherein,
Described pre-arrangement comprises the case shell and is located at the inner bag of described case shell inside that the zone that limits between the inwall of described case shell and the outer wall of inner bag is the foaming space.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100078356A CN102173057A (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming process and foaming process for refrigeration equipment |
| CN201410387140.9A CN104260266B (en) | 2011-01-05 | 2011-01-05 | The foam process of foaming machine, foam process and refrigeration plant |
| CN201410387546.7A CN104260264B (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming technology and foaming technology of refrigeration plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100078356A CN102173057A (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming process and foaming process for refrigeration equipment |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387140.9A Division CN104260266B (en) | 2011-01-05 | 2011-01-05 | The foam process of foaming machine, foam process and refrigeration plant |
| CN201410387546.7A Division CN104260264B (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming technology and foaming technology of refrigeration plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102173057A true CN102173057A (en) | 2011-09-07 |
Family
ID=44516398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100078356A Pending CN102173057A (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming process and foaming process for refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102173057A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154022A1 (en) * | 2018-02-08 | 2019-08-15 | 合肥华凌股份有限公司 | Method for preparing box, box for refrigeration device and refrigeration device |
| CN110370527A (en) * | 2019-08-13 | 2019-10-25 | 辽宁金兴汽车内饰有限公司 | Foamed instrument panel peripheral sealing technique |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243873A1 (en) * | 2002-09-21 | 2004-04-01 | Electrolux Home Products Corporation N.V. | Foaming out a hollow element, comprises feeding in foam through a primary opening while simultaneously sucking out air via a further opening |
| CN101474842A (en) * | 2009-01-24 | 2009-07-08 | 南京红宝丽股份有限公司 | Method for improving filling property of rigid polyurethane foam plastics |
| CN101544777A (en) * | 2009-05-08 | 2009-09-30 | 南京红宝丽股份有限公司 | Rigid urethane foam moulded foaming device and method for foaming using same |
| CN101544770A (en) * | 2008-03-27 | 2009-09-30 | 财团法人首尔大学校产学协力财团 | Herstellung superhydrophober polymer |
| WO2010094715A2 (en) * | 2009-02-20 | 2010-08-26 | Crios S.P.A. | Vacuum-assisted foaming method and apparatus for moulding insulation of refrigeration containers |
| CN101865584A (en) * | 2009-04-14 | 2010-10-20 | 博西华家用电器有限公司 | Refrigerator |
-
2011
- 2011-01-05 CN CN2011100078356A patent/CN102173057A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10243873A1 (en) * | 2002-09-21 | 2004-04-01 | Electrolux Home Products Corporation N.V. | Foaming out a hollow element, comprises feeding in foam through a primary opening while simultaneously sucking out air via a further opening |
| CN101544770A (en) * | 2008-03-27 | 2009-09-30 | 财团法人首尔大学校产学协力财团 | Herstellung superhydrophober polymer |
| CN101474842A (en) * | 2009-01-24 | 2009-07-08 | 南京红宝丽股份有限公司 | Method for improving filling property of rigid polyurethane foam plastics |
| WO2010094715A2 (en) * | 2009-02-20 | 2010-08-26 | Crios S.P.A. | Vacuum-assisted foaming method and apparatus for moulding insulation of refrigeration containers |
| CN101865584A (en) * | 2009-04-14 | 2010-10-20 | 博西华家用电器有限公司 | Refrigerator |
| CN101544777A (en) * | 2009-05-08 | 2009-09-30 | 南京红宝丽股份有限公司 | Rigid urethane foam moulded foaming device and method for foaming using same |
Non-Patent Citations (1)
| Title |
|---|
| 王晓冬: "《真空技术》", 30 September 2006, article "真空系统的组成" * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019154022A1 (en) * | 2018-02-08 | 2019-08-15 | 合肥华凌股份有限公司 | Method for preparing box, box for refrigeration device and refrigeration device |
| CN110370527A (en) * | 2019-08-13 | 2019-10-25 | 辽宁金兴汽车内饰有限公司 | Foamed instrument panel peripheral sealing technique |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102166803A (en) | Foaming apparatus, foaming process and foaming process of refrigerating device | |
| CN102179893A (en) | Foaming equipment, foaming process and foaming process of refrigerating equipment | |
| EP2836349B1 (en) | Method to create vacuum insulated cabinets for refrigerators | |
| CN101979233A (en) | Process for producing negative pressure foamed refrigerator | |
| CN104380020A (en) | Insulating wall, insulating box, and manufacturing method therefor | |
| CN104118087A (en) | Production process and equipment of high-efficiency energy-saving foam plastic | |
| CN102173057A (en) | Foaming equipment, foaming process and foaming process for refrigeration equipment | |
| CN106196812A (en) | Multilamellar refrigeration plant cabinet, refrigeration plant and the assemble method of cabinet | |
| CN101726112B (en) | Storage apparatus, especially hot water preparing device | |
| CN104260264A (en) | Foaming equipment, foaming technology and foaming technology of refrigeration plant | |
| CN104329889A (en) | Refrigerator and manufacturing method thereof | |
| CN104061753B (en) | Cold storage plant | |
| CN204280307U (en) | A kind of collapsible cold-storage carrying case | |
| CN209410800U (en) | A kind of cold chain transportation incubator | |
| CN201703731U (en) | Heat-insulation box additionally provided with vacuum glass tubes in foaming layer | |
| CN103046659A (en) | Grooved thermal insulation plate and producing method thereof | |
| CN104260266A (en) | Foaming equipment, foaming process and foaming process of refrigeration equipment | |
| CN109335326A (en) | A kind of cold chain transportation incubator | |
| CN102773959B (en) | Method of manufacturing heat insulation box body | |
| CN104724412A (en) | Chemical storage tank | |
| CN104093543A (en) | Mold unit for thermoforming | |
| CN103707392B (en) | A kind of shaped device of composite insulating brick | |
| CN103692539B (en) | A kind of production technology of energy-saving wall body module | |
| DK179853B1 (en) | Transportation Box | |
| CN201184479Y (en) | Molding die for producing aerogel vacuum thermal insulation plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant after: Hefei Midea Refrigerator Co., Ltd. Applicant after: Hefei Hualing Co., Ltd. Address before: 230601 Hefei Changjiang Road, Anhui, No. 669 Applicant before: Hefei Media Rongshida Refrigerator Co., Ltd. Applicant before: Hefei Hualing Co., Ltd. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: HEFEI MEDIA RONGSHIDA REFRIGERATOR CO., LTD. TO: HEFEI MIDEA REFRIGERATORCO., LTD. |
|
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110907 |