CN104260264A - Foaming equipment, foaming technology and foaming technology of refrigeration plant - Google Patents
Foaming equipment, foaming technology and foaming technology of refrigeration plant Download PDFInfo
- Publication number
- CN104260264A CN104260264A CN201410387546.7A CN201410387546A CN104260264A CN 104260264 A CN104260264 A CN 104260264A CN 201410387546 A CN201410387546 A CN 201410387546A CN 104260264 A CN104260264 A CN 104260264A
- Authority
- CN
- China
- Prior art keywords
- foaming
- wireway
- mould
- extraction sector
- 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.)
- Granted
Links
Landscapes
- Refrigerator Housings (AREA)
Abstract
The invention discloses foaming equipment, a foaming technology and a foaming technology of a refrigeration plant. The foaming equipment is used for foaming a pre-assembling component; a foaming space is limited in the pre-assembling component; the foaming equipment comprises a foaming mould, a first air exhaust mechanism, a second air exhaust mechanism and a first negative pressure providing device. The foaming mould comprises a first mould body and a second mould body; the first mould body and the second mould body are matched to limit a mould cavity; the first air exhaust mechanism is communicated with the mould cavity; the second air exhaust mechanism comprises an air guide pipe fixedly arranged in the foaming space; the air guide pipe comprises an opening pipe and a clamping strip, an opening extending in the axial direction of the opening pipe is formed in the pipe wall of the opening pipe, and the clamping strip can be arranged on the opening pipe in a sliding mode to seal the opening. The first negative pressure providing device is connected with the first air exhaust mechanism and used for forming negative pressure in the foaming space. According to the foaming equipment, air negative pressure can be evenly transmitted to the foaming space, and therefore the heat preservation performance of a heat preservation layer obtained after foaming is better, foaming raw materials can be saved, and the cost is reduced.
Description
The divisional application that the application is Chinese patent application 201110007835.6, denomination of invention is " foam process of foaming machine, foam process and refrigeration plant ", application artificial " beautiful Hefei Fridge Co., Ltd, Hefei Hualing Co., Ltd. ".
Technical field
The present invention relates to refrigeration plant and manufacture field, especially relate to a kind of foaming machine, adopt the foam process of described foaming machine and the foam process of refrigeration plant.
Background technology
Refrigeration plant is in the market formed primarily of refrigeration system and thermal-insulating body, and wherein thermal-insulating body is generally utilize following technique to make:
By the shell of refrigeration plant, the assembled housing becoming a relative closure of inner bag, and the filled mouth of foaming raw material is set on an end face of housing, and the environment that casing is placed in temperature higher deposits a period of time, makes the abundant preheating of casing.Then casing is loaded clamping closure in foaming mould.After this deployed foaming raw material is injected in empty van body by filled mouth reserved on casing, in 5 ~ 10 subsequently minute, chemical reaction is there is in blowing agent in the space that casing encloses, fully be expanded to the space being full of whole casing and enclosing, and cooled and solidified, so far thermal-insulating body completes.
Because the whole process of foam box is all in normal atmosphere pressure, and but casing is clamped in relative closure has not had in hermetic foaming mould, when foamed material fast foaming expands, the air be originally retained in casing is squeezed, and discharge from the gap of foaming mould, air pressure now in casing apparently higher than ambient air pressure, thus causes:
1, the air that in foaming process, part fails to discharge in time can infiltrate foamed material and form large pore, and cause casing to form partial insulation weak spot, overall thermal conductivity is higher;
2, box house is because of foaming raw material rapid expanding, and is vented the case inner high voltage freely do not caused, and extends the time cycle that foaming raw material is full of whole casing, limits production capacity;
3, because fill cycle is elongated, and foaming raw material is in foaming process, its hardness increases, and the multiple factors such as mobility, plasticity reduction, make filled mouth near-end foamed material density higher, and lower away from the foamed material density of filled mouth, thus make that whole casing thermal conductivity factor is uneven, bulk article individual difference is large.
4, refrigeration plant is in actual production, due to above-mentioned weak point, often needs filled more foaming raw material to reach corresponding heat-insulating property, causes cost higher, and the problems such as the environmental protection involved thus, energy.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.
For this reason, one object of the present invention is to propose a kind of foaming machine, and the heat-insulating property of the heat-insulation layer that described foaming machine can make foaming obtain afterwards is better, and can save foaming raw material, reduces costs.
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.
Of the present inventionly be an object foam process proposing a kind of refrigeration plant.
The foaming machine of embodiment according to a first aspect of the present invention, described foaming machine comprises: foaming mould, and described foaming mould comprises the first mould and the second mould, and described first mould and the second mould cooperatively interact to limit the die cavity being suitable for holding described pre-arrangement; First extraction sector, described first extraction sector is communicated with the gas for extracting out in described die cavity with described die cavity; Second extraction sector, described second extraction sector to be located in described foaming space and to extend in described foaming space and arranges, wherein said second extraction sector is communicated with described die cavity, described second extraction sector comprises: wireway, described wireway is fixed in described foaming space by fixed mechanism, described wireway comprises: open tube and card article, and the tube wall of described open tube is provided with along its axially extended opening, and described card article is located on described open tube slidably to close described opening; With the first negative pressure generator, described first negative pressure generator is connected for forming negative pressure in described foaming space with described first extraction sector.
According to the foaming machine of the embodiment of the present invention, by adopting the second extraction sector extending layout in foaming space, air negative pressure can be delivered in foaming space uniformly, thus the heat-insulating property of the heat-insulation layer obtained after expanding is better, and can foaming raw material be saved, reduce cost.
Alternatively, described open tube is provided with the ventilative filtering layer for covering described opening, and described ventilative filtering layer can stop that expanded material enters in wireway while through air.
In one embodiment of the invention, described fixed mechanism comprises: substrate, and described substrate is located on described pre-arrangement; And fixed claw, described fixed claw deformable ground is established on the substrate for holding described wireway.
Alternatively, to be multiple and multiple fixed claw be spaced apart from each other along the axis of described wireway described fixed claw.Thus, wireway is axially 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 to be located on described pre-arrangement and and be formed with predetermined gap between described pre-arrangement; With wedging latch, one end of described wedging latch is inserted in described predetermined gap and the other end holds described wireway.
Alternatively, described wedging latch comprises: body, and described body comprises mutually perpendicular first plate and the second plate; Wedging portion, described wedging portion stretches out from the outer of described first plate; Location division, described location division to be extended and parallel with described first plate from described second plate; And limiting section, the direction that described limiting section is located between described wedging portion and described first plate and edge parallel with the second plate is recessed into; Wherein, described wedging portion is inserted in the predetermined gap between described side plate and pre-arrangement, and described wireway is positioned in the space that limits between described location division and described body.
Alternatively, to be multiple and multiple wedging latch be spaced apart from each other along the axis of described wireway described wedging latch.Thus, wireway is axially 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 exhaust tube.
The foam process of embodiment according to a second aspect of the present invention, adopts the foaming machine described in above-mentioned first aspect embodiment, and comprises the following steps:
(1) the second extraction sector is installed in the foaming space limited in described pre-arrangement;
(2) being inserted by pre-arrangement in described foaming mould and sealed by described foaming mould and reserve suction interface, wherein said suction interface is connected with the first end of described second extraction sector;
(3) be connected with described suction interface through described foaming mould one end of described first extraction sector, the other end of described first extraction sector is connected with negative pressure generator;
(4) described negative pressure generator is started to extract the gas in described foaming space out;
(5) in described foaming space, expanded material is filled.
Preferably, expanded material is filled when the air pressure in described foaming space is reduced in the 0.99-0.01 times of backward described foaming space of atmospheric pressure.
The foam process of the refrigeration plant of embodiment according to a third aspect of the present invention, adopt the foam process described in above-mentioned second aspect embodiment, wherein, described pre-arrangement comprises case shell and is located at the inner bag of described case shell inside, and the region limited between the inwall of described case shell and the outer wall of inner bag is foaming space.
According to the foam process of the embodiment of the present invention, by adopting the foaming machine described in above-described embodiment, the air pressure foamed in space can be reduced in foaming process, thus obtain the better heat-insulation layer of heat-insulating property.Meanwhile, because the gas in foaming space is evenly taken away, exhaust can not be caused smooth and the partial high pressure of generation, and then avoid gas and stretch in expanded material and form large pore, ensure that foaming quality, reduce the time cycle of foaming simultaneously, improve production capacity.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, 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 outside foaming mould, is arranged with seal casinghousing;
Fig. 3 is the assembling schematic diagram of the 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 of first example of wireway 30a according to embodiments of the invention one, and the cross section of its median septum is rectangle;
Fig. 6 be in Fig. 5 B-B to sectional view;
Fig. 7 is the schematic diagram of second example of wireway 30a according to embodiments of the invention one, and the cross section of dividing plate is cross;
Fig. 8 be in Fig. 7 C-C to sectional view;
Fig. 9 is the schematic diagram of first example of wireway 30b according to embodiments of the invention two;
Figure 10 be in Fig. 9 D-D to schematic diagram;
Figure 11 is the schematic diagram of second example of wireway 30b according to embodiments of the invention two;
Figure 12 is the schematic cross-section in Figure 11;
Figure 13 is the schematic diagram that the inner sleeve in the wireway 30b shown in Figure 11 rotates;
Figure 14 is the schematic cross-section in Figure 13;
Figure 15 is the schematic perspective view of the wireway 30b according to embodiments of the invention two, wherein on air drain, is provided with ventilative filtering layer;
Figure 16 is the schematic cross-section in Figure 15;
Figure 17 is the schematic diagram of the wireway 30c according to embodiments of the invention three;
Figure 18 is the schematic cross-section in Figure 17;
Figure 19 is that the second extraction sector shown in Fig. 3 is at the in-built rear upside schematic diagram of joining of pre-arrangement;
Figure 20 is the enlarged diagram that Figure 19 centre circle shows E portion;
Figure 21 is the rear upside schematic diagram that the second extraction sector assembles in the case shell of pre-arrangement, illustrated therein is 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 top view that the second extraction sector shown in Figure 21 assembles in the case shell of pre-arrangement;
Figure 24 is the enlarged section schematic diagram that Figure 23 centre circle shows G portion;
Figure 25 is the rear upside schematic diagram that the second extraction sector assembles in the case shell of pre-arrangement, illustrated therein is 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 top view that the 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 of the foam process according to the embodiment of the present invention.
Reference numeral:
1, foaming mould; 2, the first extraction sector;
3, the 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
Detailed description of the invention
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, term " inner side ", " outside ", " longitudinal direction ", " transverse direction ", " on ", D score, " top ", the orientation of the instruction such as " end " or position relationship be based on orientation shown in the drawings or position relationship, be only the present invention for convenience of description instead of require that the present invention with specific azimuth configuration and operation, therefore must can not be interpreted as limitation of the present invention.
Describe the foaming machine according to the embodiment of the present invention below with reference to Fig. 1-Figure 29, described foaming machine is used for foaming to pre-arrangement 200.Below for foaming refrigeration plant (such as refrigerator or refrigerator-freezer) foaming machine come the present invention will be described, wherein pre-arrangement 200 comprises case shell 220 and at the inner bag 230 being located at case shell 220 inside, foaming space 210 is limited with between case shell 220 and inner bag 230, bleeding point 211 is reserved with, as shown in Figure 3 in this foaming space 210.Certainly, be understandable that, foaming machine according to the present invention is not limited to for refrigeration plant, and the needs that can also be used for other type carry out the equipment foamed.
As shown in Fig. 1-Figure 29, according to the foaming machine of the embodiment of the present invention, comprise foaming mould 1, first extraction sector 2, second extraction sector 3 and the first negative pressure generator 4.
As Figure 1-Figure 2, foaming mould 1 comprises the first mould 11 and the second mould 12, first mould 11 and the second mould 12 and cooperatively interacts to limit the die cavity 13 being suitable for holding pre-arrangement 200.Foaming mould 1 is reserved with suction interface 5.First extraction sector 2 is communicated with by suction interface 5 with die cavity 13, and for extracting the gas in die cavity 13 out, alternatively, the first extraction sector 2 can be exhaust tube.Second extraction sector 3 to be located in foaming space 210 and to extend layout in foaming space 210, and wherein the second extraction sector 3 is communicated with die cavity 13.In one embodiment of the invention, the second extraction sector 3 passes the bleeding point 211 in foaming space 210 and is communicated with die cavity 13.First negative pressure generator 4 is connected with the first extraction sector 2 for forming negative pressure foaming in space 210.
Thus, when starting the first negative pressure generator 4, gas in die cavity 13 is extracted out to form negative pressure by the first extraction sector 2, the gas foamed in space 210 is pressed in die cavity 13 by the second extraction sector 3 simultaneously, uniform air negative pressure can be formed thus by foaming space 210, avoid air residual and penetrate in foamed material and form large pore, have impact on the heat insulation effect of the rear product of foaming.
According to the foaming machine of the embodiment of the present invention, by adopting the second extraction sector extending layout in foaming space, air negative pressure can be delivered in foaming space uniformly, thus the heat-insulating property of the heat-insulation layer obtained after expanding is better, and can foaming raw material be saved, reduce cost.
In one embodiment of the invention, foaming machine comprises seal (not shown) further, seal is located to seal die cavity 13 on the contact surface between the first mould 11 and the second mould 12, thus can keep low pressure in space of foaming in foaming process and then ensure foaming quality.Alternatively, seal is sealing gasket.Particularly, seal can be located on the surface contacted with the second mould 12 of the first mould 11, or is located on the surface contacted with the first mould 11 of the second mould 12, can also the contact surface on the first mould 11 and the second mould 12 be arranged respectively.
In further embodiment of the present invention, as shown in Figure 2, foaming machine comprises seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8 further, wherein seal casinghousing 6 is enclosed within the outside of foaming mould 1 and the first negative pressure generator 4 closedly, the intracavity inter-connection of outer extraction sector 7 and seal casinghousing 6, and the second negative pressure generator 8 is connected to form negative pressure in the inner chamber of seal casinghousing 6 with outer extraction sector 7.Like this, gas in die cavity 13 and foaming space 210 is extracted in the inner chamber of seal casinghousing 6 by the first negative pressure generator 4, gas in seal casinghousing 6 inner chamber is extracted out by outer extraction sector 7 by the second negative pressure generator 8, thus makes the air pressure in the die cavity 13 of foaming mould 1 lower than the inner chamber of seal casinghousing 6 to improve the vacuum in the die cavity 13 at pre-arrangement 200 place.
In some embodiments of the invention, seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8 are respectively multiple (not shown).Multiple seal casinghousing 6 is sheathed successively from inside to outside, to limit at the multiple sealed cavities successively between seal casinghousing 6, wherein the seal casinghousing 6 of innermost layer is enclosed within the outside of foaming mould 1 and the first negative pressure generator 4 closedly.Multiple second negative pressure generator 8 is separately positioned in multiple sealed cavity and outside outermost seal casinghousing 6, and multiple outer extraction sector and multiple second negative pressure generator 8 one_to_one corresponding, and each outer extraction sector is communicated with in each second negative pressure generator 8 and the sealed cavity of the internal layer of its place sealed cavity, to make the inner chamber of outermost layer seal casinghousing 6 define a barometric gradient of successively decreasing to the foaming space 210 of innermost layer, and then further increase the vacuum in the die cavity 13 at pre-arrangement 200 place.
As shown in Figure 3 and Figure 4, in one embodiment of the invention, the second extraction sector 3 comprises wireway 30 and fixed mechanism 31, and wherein wireway 30 to be fixed in foaming space 210 by fixed mechanism 31 and to extend layout in foaming space 210.One end of wireway 30 is communicated with die cavity 13 through the bleeding point 211 in foaming space 210, like this, when first negative pressure generator 4 starts, gas in foaming space 210 to be entered in die cavity 13 by wireway 30 and is drawn out of by the first extraction sector 1 such as exhaust tube together with the gas in die cavity 13, thus discharge in time at the gas in foaming space 210 and reduce residual, form even negative pressure to make foaming interior volume.
To illustrate according to wireway 30 of the present invention with multiple embodiment below.It should be noted that; below all for the profile of wireway for pipe is described; but be understandable that; wireway of the present invention is not limited to pipe; the cross-sectional circumference shape of wireway can also be quadrangle or more than the polygon on four limits and similar shape, all falls within the scope of protection of the present invention.In addition, the corner part being hereinafter all located at the case shell 220 of pre-arrangement 200 for wireway 30 is described, 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 foaming space 210, all falls within the scope of protection of the present invention.In addition, one of ordinary skilled in the art it will also be appreciated that, can comprise multiple according to the wireway 30 of the embodiment of the present invention and be located at such as corner in case shell 220 simultaneously, correspondingly, pre-arrangement 200 is also provided with multiple bleeding point 211, and multiple wireway 30 is all communicated with die cavity 13 through after multiple bleeding point 211.
Embodiment one,
In the present embodiment, wireway indicates with 30a.As shown in Figure 5-Figure 8, be provided with dividing plate 301a in wireway 30a, dividing plate 301a extends along the axis of wireway 30a so that the inner chamber of wireway 30a is at least divided into two spaces, and can play the effect of the intensity supporting wireway 30a.The tube wall of wireway 30a is formed with multiple pore 302a, to strengthen the effect of bleeding to each region in 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 rectangle, that is, dividing plate 301a can be a flat board to make the cross section of wireway 30a approximately in " day " type, and namely wireway 30a inner chamber be divide into two spaces by dividing plate 301a.As shwon in Figures 5 and 6, pore 302a has multiple row such as two row or three row along the axial directional distribution of wireway 30a.Alternatively, multiple row pore 302a can be uniformly distributed around the circumference of described wireway 30a.Or when wireway 30a is located at the corner of case shell 220, pore 302a concentrate on wireway 30a towards foaming space 210 in side.
As shown in Figure 7 and Figure 8, in an example of the present invention, the cross section of dividing plate 301a is cross.That is, dividing plate 301a is configured to make the cross section of wireway 30a approximately in " field " type, and namely wireway 30a inner chamber be divide into four spaces by dividing plate 301a.As shown in Figures 7 and 8, pore 302a, along the axial directional distribution of wireway 30a, is at least provided with a row pore 302a particularly in each space of wireway 30a inner chamber.
In another example of the present invention, the inner chamber of wireway 30a also can be divided into three spaces by dividing plate 301a, 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, the inner chamber of wireway 30a can also be divided into more than four spaces by dividing plate 301a.
In some embodiments of the invention, pore 302a is uniformly distributed along the axial direction of wireway 30a.Alternatively, the distance between two adjacent pore 302a is 30-200mm.Further alternatively, the distance between two adjacent pore 302a is 50mm.
In other embodiments of the present invention, from the first end (upper end Fig. 3 and Fig. 4 of wireway 30a, namely near one end of bleeding point 211) to second end (namely away from one end of bleeding point 211) relative with first end, pore 302a increases progressively gradually along the axial directional distribution density of wireway 30a, and the distance between adjacent two pore 302a is 30-200mm.
Alternatively, the distance L between two adjacent pore 302a is:
L＝30+(20×n)；
Wherein, n is natural number and 0≤n<9, and the distance the axial adjacent air holes from the first end of wireway 30a to the second end is got successively: n=8,7,6 ... .., 0.
By make the first end of wireway 30a to the second end axial adjacent air holes between density increase progressively, the barometric gradient vertically of wireway 30a can be compensated, can more equably negative pressure be passed to foaming space 210 in everywhere.
In some embodiments of the invention, wireway 30a is provided with ventilative filtering layer 32 (not shown) for covering multiple pore 302a, and ventilative filtering layer 32 can stop that expanded material enters in wireway 30a from pore 302a while through air.Alternatively, ventilative filtering layer is 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 wireway 30a as long as meet while through air.
Embodiment two,
In the present embodiment, wireway indicates with 30b.As shown in Fig. 9-Figure 16, the tube wall of wireway 30b is formed along its axially extended air drain 301b, to make the cross section of wireway 30b in " C " shape, to strengthen the effect of bleeding to each region in foaming space 210.Alternatively, in an example of the present invention, air drain 301b with the flange extended radially outwardly along wireway 30b, as shown in Figure 9 and Figure 10.
As shown in Figure 9, in an example of the present invention, from the first end of wireway 30b (namely near one end of bleeding point 211), to second end (namely away from one end of bleeding point 211) relative with first end, 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 the first end of wireway 30b (namely near one end of bleeding point 211) to second end (namely away from one end of bleeding point 211) relative with first end, the width of air drain 301b subtracts gradually along the axial direction of wireway 30b (schemes not shown) greatly.Thus, the barometric gradient axially of wireway 30b can be compensated, can more equably negative pressure be passed to foaming space in 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, one of ordinary skilled in the art is understandable that, due to the C type air drain 301b of the wireway 30b in the present embodiment in actual production owing to adopting extrusion process, under nature, groove width is steady state value, but in practical set, groove width gradual change in the axial direction can be made by the clamping degree changing fixture, also can pass through other optional features, the collar of such as 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 for covering air drain 301b, as shown in figures 15-16.Ventilative filtering layer 32 can stop that expanded material enters in wireway 30b from air drain 301b while through air.Alternatively, ventilative filtering layer is 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 wireway 30b as long as meet while through air.
In examples more of the present invention, as shown in Figure 11-Figure 12, the tube wall of inner sleeve 302b is formed along its axially extended notch 303b in wireway 30b coaxially and be rotatably provided with inner sleeve 302b.Like this, need when bleeding in foaming space 210, the notch 303b of inner sleeve 302b aims at the air drain 301b of wireway 30a, and thus, in foaming space 210, the gas in each region is drawn out of by wireway 30b, thus negative pressure can be evenly delivered to everywhere.And at the end of the gas in foaming space 210 is bled, 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, close the air drain 301b of wireway 30b thus, and then can prevent 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 shown in Figure 17-Figure 18, 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 on open tube 301c slidably to open and to close this opening 3010.Alternatively, the mode that card article 302c and open tube 301c coordinate with chute is connected.
With the inner sleeve in embodiment two similarly, need when bleeding in foaming space 210, card article 302c is drawn out of, and thus, in foaming space 210, the gas in each region is drawn out of by open tube 301c, thus negative pressure can be evenly delivered to everywhere.And at the end of bleeding to the gas in foaming space 210, card article 302c is inserted into and is engaged on the opening 3010 of open tube 301c, closes wireway 30c thus, and then can prevent the expanded material of filling from entering in wireway 30c and remaining extraction sector.
Similarly, in some embodiments of the invention, wireway 30c can be provided with ventilative filtering layer 32 (not shown) for covering opening 3010, ventilative filtering layer 32 can stop that expanded material enters in wireway 30c from opening 3010 while through air.Alternatively, ventilative filtering layer is 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 wireway 30c as long as meet while through air.
Illustrate according to fixed mechanism 31 of the present invention below with reference to Figure 19-Figure 29, wherein fixed mechanism 31 the wireway 30 fixed be described for the wireway 30a in above-described embodiment one, be understandable that, wireway in other embodiments or the pipe fitting of other types can adopt fixed mechanism 31 of the present invention to be fixed too, will will not enumerate in 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 pre-arrangement 200, and fixed claw 312a deformable ground is located on substrate 311a for holding wireway 30.Wherein, substrate 311a can for being located at the plate object on some sidewalls of 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 such as right plate (not shown) of prepackage assembly 200.
Alternatively, to be multiple and multiple fixed claw 312a be spaced apart from each other along the axis of wireway 30 fixed claw 312a, as shown in figure 22.Thus, wireway 30 is axially 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 as shown in Figure 25-Figure 29, fixed mechanism 31 comprises side plate 311b and wedging latch 312b, its latus inframedium 311b to be located on pre-arrangement 200 and and be formed with predetermined gap between pre-arrangement 200, one end of wedging latch 312b is inserted in predetermined gap and the other end holds wireway 30.Wherein, side plate 311b can for being located at the plate object on some sidewalls of 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 such as right plate (not shown) of prepackage assembly 200.
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 the second plate 3122, wedging portion 3123 stretches out from the outer of the first plate 3121, location division 3124 to be extended and parallel with the first plate 3121 from the second plate 3122, and limiting section 3125 to be located between wedging portion 3123 and the first plate 3121 and to be recessed into along the direction parallel with the second plate 3122.Wherein, wedging portion 3123 is inserted in the predetermined gap between side plate 311b and pre-arrangement 200, and wireway 30 is positioned in the space that limits between location division 3124 and body, as shown in figure 28.
Alternatively, to be multiple and multiple wedging latch 312b be spaced apart from each other along the axis of wireway 30 wedging latch 312b, as shown in figure 25.Thus, wireway 30 is axially 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 present invention below with reference to Fig. 1, Fig. 2 and Figure 30, described foam process adopts the foaming machine described in above-described embodiment.
According to the foam process of the embodiment of the present invention, comprise the following steps:
(1) the second extraction sector 3 is installed in the foaming space 210 limited in pre-arrangement 200;
(2) being inserted by pre-arrangement 200 in foaming mould 1 and sealed by foaming mould 1 and reserve suction interface 5, wherein suction interface 5 is connected with the first end of the second extraction sector 3;
(3) be connected with suction interface 5 through foaming mould 1 one end of the first extraction sector 2, the other end of the first extraction sector 2 is connected with the first negative pressure generator 4;
(4) 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, in foaming space 210, fill expanded material.
According to the foam process of a kind of refrigeration plant of the embodiment of the present invention, adopt the foam process described in above-described embodiment, wherein, pre-arrangement 200 comprises case shell 220 and is located at the inner bag 230 of case shell 220 inside, and the region limited between the inwall of case shell 220 and the outer wall of 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 present invention, by adopting the foaming machine described in above-described embodiment, the air pressure foamed in space can be reduced in foaming process, thus obtain the better heat-insulation layer of heat-insulating property.Meanwhile, because the gas in foaming space is evenly taken away, exhaust can not be caused smooth and the partial high pressure of generation, and then avoid gas and stretch in expanded material and form large pore, ensure that foaming quality, reduce the time cycle of foaming simultaneously, improve production capacity.
The process adopting carry out of foam process according to an embodiment of the invention to refrigeration plant such as refrigerator to foam is described below with reference to Fig. 1-Figure 30.
As shown in Fig. 3, Figure 19-Figure 27, two wireways 30 are located at the corner between the left side wall 221 of case shell 220 and right side wall 222 and 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, two wireways 30 are all communicated with die cavity 13 through after multiple bleeding point 211.
Then, as shown in fig. 1, pre-arrangement 200 to be inserted in foaming mould 1 and by seal, foaming mould 1 to be sealed, to ensure the effect of bleeding in foaming mould 1, reserved suction interface 5 on foaming mould 1, first extraction sector 2 is for exhaust tube and one end is communicated with die cavity 13 inside through suction interface 5, and can be taken away by the gas in foaming space 210 by wireway 30 during to ensure to bleed, the other end of exhaust tube connects the first negative pressure generator 4 simultaneously.
Now, 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 the first extraction sector 2 and wireway 30, expanded material is filled in foaming space 210, material to be foamed fully expand and be full of foaming space after, wait for cooled and solidified, thus complete foaming process, make the heat-insulation layer of refrigeration plant.
In another embodiment of the present invention, as shown in Figure 2, one deck seal casinghousing 6, outer extraction sector 7 and the second negative pressure generator 8 is provided with in the outside of foaming mould 1, wherein seal casinghousing 6 is enclosed within the outside of foaming mould 1 and the first negative pressure generator 4 closedly, the intracavity inter-connection of outer extraction sector 7 and seal casinghousing 6, and the second negative pressure generator 8 is connected to form negative pressure in the inner chamber of seal casinghousing 6 with outer extraction sector 7.Like this, gas in die cavity 13 and foaming space 210 is extracted in the inner chamber of seal casinghousing 6 by the first negative pressure generator 4, gas in seal casinghousing 6 inner chamber is extracted out by outer extraction sector 7 by the second negative pressure generator 8, thus makes the air pressure in the die cavity 13 of foaming mould 1 lower than the inner chamber of seal casinghousing 6 to improve the vacuum in the die cavity 13 at pre-arrangement 200 place.
Alternatively, seal casinghousing also can be multilayer, and outer extraction sector 7 and the second negative pressure generator 8 are respectively multiple (scheming not shown).Wherein, multiple seal casinghousing 6 is sheathed successively from inside to outside, to limit at the multiple sealed cavities successively between seal casinghousing 6, wherein the seal casinghousing 6 of innermost layer is enclosed within the outside of foaming mould 1 and the first negative pressure generator 4 closedly.Multiple second negative pressure generator 8 is separately positioned in multiple sealed cavity and outside outermost seal casinghousing 6, and multiple outer extraction sector and multiple second negative pressure generator 8 one_to_one corresponding, and each outer extraction sector is communicated with in each second negative pressure generator 8 and the sealed cavity of the internal layer of its place sealed cavity, to make the inner chamber of outermost layer seal casinghousing 6 define a barometric gradient of successively decreasing to the foaming space 210 of innermost layer, and then further increase the vacuum in the die cavity 13 at pre-arrangement 200 place.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (11)
1. a foaming machine, for foaming to pre-arrangement, be limited with foaming space in described pre-arrangement, it is characterized in that, described foaming machine comprises:
Foaming mould, described foaming mould comprises the first mould and the second mould, and described first mould and the second mould cooperatively interact to limit the die cavity being suitable for holding described pre-arrangement;
First extraction sector, described first extraction sector is communicated with the gas for extracting out in described die cavity with described die cavity;
Second extraction sector, described second extraction sector to be located in described foaming space and to extend in described foaming space and arranges, wherein said second extraction sector is communicated with described die cavity, described second extraction sector comprises: wireway, described wireway is fixed in described foaming space by fixed mechanism, described wireway comprises: open tube and card article, and the tube wall of described open tube is provided with along its axially extended opening, and described card article is located on described open tube slidably to close described opening; With
First negative pressure generator, described first negative pressure generator is connected for forming negative pressure in described foaming space with described first extraction sector.
2. foaming machine according to claim 1, is characterized in that, described open tube is provided with the ventilative filtering layer for covering described opening.
3. foaming machine according to claim 1, is characterized in that, described fixed mechanism comprises:
Substrate, described substrate is located on described pre-arrangement; With
Fixed claw, described fixed claw deformable ground is established on the substrate for holding described wireway.
4. foaming machine according to claim 3, is characterized in that, to be multiple and multiple fixed claw be spaced apart from each other along the axis of described wireway described fixed claw.
5. foaming machine according to claim 1, is characterized in that, described fixed mechanism comprises:
Side plate, described side plate to be located on described pre-arrangement and and be formed with predetermined gap between described pre-arrangement; With
Wedging latch, one end of described wedging latch is inserted in described predetermined gap and the other end holds described wireway.
6. foaming machine according to claim 5, is characterized in that, described wedging latch comprises:
Body, described body comprises mutually perpendicular first plate and the second plate;
Wedging portion, described wedging portion stretches out from the outer of described first plate;
Location division, described location division to be extended and parallel with described first plate from described second plate; With
Limiting section, the direction that described limiting section is located between described wedging portion and described first plate and edge parallel with the second plate is recessed into;
Wherein, described wedging portion is inserted in the predetermined gap between described side plate and pre-arrangement, and described wireway is positioned in the space that limits between described location division and described body.
7. foaming machine according to claim 6, is characterized in that, to be multiple and multiple wedging latch be spaced apart from each other along the axis of described wireway described wedging latch.
8. foaming machine according to claim 1, is characterized in that, described first extraction sector is exhaust tube.
9. a foam process, is characterized in that, adopts the foaming machine according to any one of claim 1-8, and comprises the following steps:
(1) the second extraction sector is installed in the foaming space limited in described pre-arrangement;
(2) being inserted by pre-arrangement in described foaming mould and sealed by described foaming mould and reserve suction interface, wherein said suction interface is connected with the first end of described second extraction sector;
(3) be connected with described suction interface through described foaming mould one end of described first extraction sector, the other end of described first extraction sector is connected with negative pressure generator;
(4) described negative pressure generator is started to extract the gas in described foaming space out;
(5) in described foaming space, expanded material is filled.
10. foam process according to claim 9, is characterized in that, fills expanded material when the air pressure in described foaming space is reduced in the 0.99-0.01 times of backward described foaming space of atmospheric pressure.
The foam process of 11. 1 kinds of refrigeration plants, is characterized in that, adopts the foam process according to claim 9 or 10, wherein,
Described pre-arrangement comprises case shell and is located at the inner bag of described case shell inside, and the region limited between the inwall of described case shell and the outer wall of inner bag is foaming space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410387546.7A CN104260264B (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming technology and foaming technology of refrigeration plant |
Applications Claiming Priority (2)
| 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 |
| CN201410387546.7A CN104260264B (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming technology and foaming technology of refrigeration plant |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100078356A Division CN102173057A (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming process and foaming process for refrigeration equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104260264A true CN104260264A (en) | 2015-01-07 |
| CN104260264B CN104260264B (en) | 2017-01-25 |
Family
ID=52151907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410387546.7A Active CN104260264B (en) | 2011-01-05 | 2011-01-05 | Foaming equipment, foaming technology and foaming technology of refrigeration plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104260264B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238142A (en) * | 2020-02-28 | 2020-06-05 | 青岛海尔电冰箱有限公司 | Box and refrigerating device |
| CN111486652A (en) * | 2020-02-28 | 2020-08-04 | 青岛海尔电冰箱有限公司 | Box and refrigerating device |
| EP3910270A1 (en) * | 2020-05-15 | 2021-11-17 | Whirlpool Corporation | Method for manufacturing a vacuum insulated structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185126A (en) * | 1981-04-18 | 1982-11-15 | Erlenbach Hans | Manufacturing device for shape from plastic grain which can be foamed |
| US6022205A (en) * | 1998-07-06 | 2000-02-08 | Tas Enterprise, L.L.C. | System for producing and conditioning blocks of flexible polyurethane foam |
| 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 |
| CN101733907A (en) * | 2008-11-12 | 2010-06-16 | 汉达精密电子(昆山)有限公司 | System and method for injection moulding of micro-foamed plastic part |
-
2011
- 2011-01-05 CN CN201410387546.7A patent/CN104260264B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57185126A (en) * | 1981-04-18 | 1982-11-15 | Erlenbach Hans | Manufacturing device for shape from plastic grain which can be foamed |
| US6022205A (en) * | 1998-07-06 | 2000-02-08 | Tas Enterprise, L.L.C. | System for producing and conditioning blocks of flexible polyurethane foam |
| CN101733907A (en) * | 2008-11-12 | 2010-06-16 | 汉达精密电子(昆山)有限公司 | System and method for injection moulding of micro-foamed plastic part |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238142A (en) * | 2020-02-28 | 2020-06-05 | 青岛海尔电冰箱有限公司 | Box and refrigerating device |
| CN111486652A (en) * | 2020-02-28 | 2020-08-04 | 青岛海尔电冰箱有限公司 | Box and refrigerating device |
| EP3910270A1 (en) * | 2020-05-15 | 2021-11-17 | Whirlpool Corporation | Method for manufacturing a vacuum insulated structure |
| US11435132B2 (en) | 2020-05-15 | 2022-09-06 | Whirlpool Corporation | Method for manufacturing a vacuum insulated structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104260264B (en) | 2017-01-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102166803B (en) | Foaming apparatus, foaming process and foaming process of refrigerating device | |
| CN104870917B (en) | The wall and Domestic refrigerator with the integral type bearing frame for heat insulator for Domestic refrigerator | |
| CN103575039B (en) | Heat insulating box and possess the refrigerator of this heat insulating box | |
| CN108612220B (en) | Building heat preservation wall | |
| CN105819107A (en) | Cold-chain logistics heat preservation box and preparation method thereof | |
| CN102179893A (en) | Foaming equipment, foaming process and foaming process of refrigerating equipment | |
| CN201140860Y (en) | Vacuum thermal insulation fresh-keeping food container | |
| CN104260264A (en) | Foaming equipment, foaming technology and foaming technology of refrigeration plant | |
| CN106288580A (en) | Use the portable Cold Chain Logistics couveuse that vacuum insulation and phase change cold-storage are combined | |
| CN106196812A (en) | Multilamellar refrigeration plant cabinet, refrigeration plant and the assemble method of cabinet | |
| CN105475213A (en) | Transport packaging bag for live fish and manufacturing and using methods thereof | |
| CN104118087A (en) | Production process and equipment of high-efficiency energy-saving foam plastic | |
| CN204280307U (en) | A kind of collapsible cold-storage carrying case | |
| CN103925760A (en) | Refrigeration equipment | |
| CN104061753B (en) | Cold storage plant | |
| CN104260266A (en) | Foaming equipment, foaming process and foaming process of refrigeration equipment | |
| CN210688876U (en) | Horizontal refrigerator | |
| CN102173057A (en) | Foaming equipment, foaming process and foaming process for refrigeration equipment | |
| CN201015323Y (en) | Greenhouse inflatable composite heat-preserving film | |
| CN203893527U (en) | Refrigerating equipment | |
| CN209054834U (en) | A kind of cold storage plate air sac sealing band | |
| CN203857729U (en) | Refrigeration device | |
| CN204757343U (en) | Electric water heater | |
| CN205482040U (en) | Refrigerator | |
| CN204489602U (en) | A kind of locker live body incubation chamber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |