CN111421735A - Refrigerator body foaming method - Google Patents
Refrigerator body foaming method Download PDFInfo
- Publication number
- CN111421735A CN111421735A CN202010150400.6A CN202010150400A CN111421735A CN 111421735 A CN111421735 A CN 111421735A CN 202010150400 A CN202010150400 A CN 202010150400A CN 111421735 A CN111421735 A CN 111421735A
- Authority
- CN
- China
- Prior art keywords
- foaming
- sealing body
- refrigerator
- sealing
- vacuum insulation
- 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
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/35—Component parts; Details or accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/762—Household appliances
- B29L2031/7622—Refrigerators
Abstract
The invention relates to the technical field of foaming, in particular to a refrigerator body foaming method. The foaming method of the refrigerator body comprises the following steps: assembling the outer shell and the inner container to form a preassembled box body; fixing a vacuum insulation plate on the inner side wall of the shell; fixing a material guide device between the inner container and the vacuum insulation panel, wherein the material guide device comprises a sealing body with a negative pressure cavity inside, and the sealing body is provided with a sealing body with an opening and a sealing part for sealing the opening; a filling cavity is formed by enclosing the outer peripheral wall of the inner container, the shell, the rear back plate, the vacuum heat-insulating plate and the material guide device; injecting foaming materials into the filling cavity; the opening of the sealing body is opened and guides the foaming material to flow to the completion of material injection, so that the foaming material can flow to the inside of the sealing body, and due to the pressure difference, the foaming material can smoothly and uniformly flow to all parts inside the sealing body, the foaming effect is good, and the heat insulation performance of the refrigerator is improved.
Description
Technical Field
The invention relates to the technical field of foaming, in particular to a refrigerator body foaming method.
Background
With the continuous improvement of living standard, the requirements of consumers on the use performance of the refrigerator are also continuously improved. At present, in order to improve the heat preservation effect of a refrigerator, a vacuum insulation panel (VIP panel) is additionally arranged between a shell and an inner container of a refrigerator body, is a material formed by compounding a filling core material and a vacuum protection surface layer, is very low in heat conductivity coefficient, and has the advantages of thin heat preservation layer, small size and light weight.
However, due to the installation of the vacuum insulation panel, when the foaming material is injected from the injection port at the bottom of the refrigerator, the foaming material flowing through the vacuum insulation panel is often unevenly distributed, so that the density of the foaming layer is uneven, the density difference is large, the power consumption of the whole refrigerator is greatly fluctuated, and the service performance of the refrigerator is affected.
Therefore, there is a need for an improved foaming method for refrigerator cabinets to solve the above problems.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a refrigerator having a cooling device.
In order to achieve the purpose, the technical scheme provided by the invention is as follows: a foaming method for a refrigerator body comprises the following steps:
assembling the outer shell and the inner container to form a preassembled box body;
fixing a vacuum insulation plate on the inner side wall of the shell;
fixing a material guide device between the inner container and the vacuum insulation panel, wherein the material guide device comprises a sealing body with a negative pressure cavity inside, and the sealing body is provided with a sealing body with an opening and a sealing part for sealing the opening;
a filling cavity is formed by enclosing the outer peripheral wall of the inner container, the shell, the rear back plate, the vacuum heat-insulating plate and the material guide device;
injecting foaming materials into the filling cavity;
the opening of the sealing body is opened and guides the foaming material to flow to the completion of material injection.
As a further improvement of the present invention, the sealing member has a melting temperature lower than that of the foaming material after flowing into the filling chamber.
As a further improvement of the invention, the box body comprises bottom steel provided with a feeding port, and the opening of the sealing body is arranged on one side of the sealing body close to the bottom steel.
As a further improvement of the invention, the material guiding device is also provided with a negative pressure generating structure which is communicated with the sealing body so as to extract the gas in the sealing body.
As a further improvement of the present invention, the step of "fixing the vacuum insulation panel on the inner side wall of the housing" specifically comprises: and fixing the vacuum insulation plate on the inner side wall of the shell through a sucker.
As a further improvement of the present invention, the step of "fixing the vacuum insulation panel on the inner side wall of the housing" specifically comprises: and fixing the vacuum insulation plate on the inner side wall of the shell through a strong magnetic sheet.
In a further improvement of the present invention, the material of the sealing body is PE.
As a further improvement of the invention, the sealing body, the vacuum heat insulation plate and the inner container are fixedly attached.
The invention has the beneficial effects that: according to the refrigerator body foaming method provided by the proposal, through the arrangement of the material guide device, after the foaming material is injected into the filling cavity, the opening of the sealing body is opened, so that the foaming material can flow into the sealing body, and due to the pressure difference, the foaming material can smoothly and uniformly flow to each part in the sealing body, the foaming effect is good, and the heat insulation performance of the refrigerator is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic structural diagram of a refrigerator body according to the present invention;
FIG. 2 is a schematic view of a refrigerator body according to the present invention;
FIG. 3 is an exploded view of FIG. 2;
FIG. 4 is a process flow chart of the foaming method of the refrigerator body of the present invention.
The refrigerator comprises 100 parts of a refrigerator, 10 parts of a box body, 1 part of a shell, 2 parts of an inner container, 3 parts of a vacuum heat insulation plate, 4 parts of a material guide device, 41 parts of a sealing body, 411 parts of a sealing body, 412 parts of a sealing component, 5 parts of a back panel, 6 parts of a filling cavity, 7 parts of bottom steel and 8 parts of a strong magnetic sheet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 to 4, the present invention provides a foaming method for a refrigerator 100 body 10, wherein, referring to fig. 1 and 3, the refrigerator 100 body 10 includes an outer shell 1, an inner container 2, a vacuum insulation panel 3 fixed on an inner side wall of the outer shell 1, a material guide device 4 installed between the inner container 2 and the vacuum insulation panel 3, a filling cavity 6 defined by an outer peripheral wall of the inner container 2, the outer shell 1, a back panel 5, the vacuum insulation panel 3, and the material guide device 4, and a back panel 5, the foaming method for the refrigerator 100 body 10 of the present invention includes:
assembling the shell 1 and the inner container 2 to form a preassembled box body 10;
fixing a vacuum insulation panel 3 on the inner side wall of the shell 1;
fixing a material guide device 4 between the inner container 2 and the vacuum insulation panel 3, wherein the material guide device 4 comprises a sealing body 41 with a negative pressure cavity inside, and the sealing body 41 is provided with a sealing body 411 with an opening and a sealing part 412 for sealing the opening;
a rear back plate 5 covers the box body 10, and a filling cavity 6 is formed among the outer peripheral wall of the inner container 2, the shell 1, the rear back plate 5, the vacuum heat-insulating plate 3 and the material guide device 4 in a surrounding mode;
injecting foaming materials into the filling cavity 6;
the opening of the sealing body 41 opens and directs the flow of foaming material to the completion of the injection.
Through the technical scheme, after the opening of the sealing body 41 is opened, the foaming material can flow into the sealing body 41, and due to the pressure difference, the foaming material can smoothly and uniformly flow into each part inside the sealing body 41, so that the foaming effect is good, and the heat insulation performance of the refrigerator 100 is improved.
The melting temperature of the sealing member 412 is lower than the temperature of the foaming material flowing into the filling cavity 6, generally, the temperature when the foaming material is injected into the filling cavity 6 is about 70 ℃, the melting temperature of the sealing member 412 is lower than the temperature range, when the foaming material flows to the sealing member 412, the sealing member 412 is melted, so that the opening of the sealing body 41 is opened, the foaming material can flow into the sealing body 41, meanwhile, due to the pressure difference between the filling cavity 6 and the original sealing body 41, the foaming material can smoothly and uniformly flow to all parts inside the sealing body 41, the foaming effect is good, and the heat insulation performance of the refrigerator 100 is improved.
The box body 10 comprises bottom steel 7 provided with a feeding port, and further, the opening of the sealing body 41 is formed in one side, close to the bottom steel 7, of the sealing body 41, so that foaming materials can enter the sealing body 41 more smoothly.
The material guiding device 4 further has a negative pressure generating structure, and the negative pressure generating structure is communicated with the sealing body 411 to extract the gas in the sealing body 411, so that the interior of the sealing body 41 is in a negative pressure state.
Specifically, in the embodiment of the present invention, the material of the sealing body 41 is PE, which has a high melting point to avoid the influence of the temperature of the foaming material, and is not easily deformed to make the foaming material flow uniformly.
The sealing body 41 is fixedly attached to the vacuum heat-insulating plate 3 and the inner container 2, so that no gap is formed between the sealing body 41 and the vacuum heat-insulating plate 3 and the inner container 2, and the phenomenon that foaming materials enter between the sealing body 41 and the vacuum heat-insulating plate 3 and the inner container 2 to cause uneven foaming is avoided.
As shown in fig. 2 and 3, in an embodiment of the present invention, the housing 1 itself is made of magnetic material, and the vacuum insulation panel 3 is fixed with a strong magnetic sheet 8 to be directly attracted to the inner sidewall of the housing 1.
The step of fixing the vacuum insulation panel 3 on the inner side wall of the shell 1 specifically comprises the following steps: with vacuum insulation panel 3 through strong magnet 8 be fixed in on the 1 inside wall of shell, compare with using double faced adhesive tape to laminate vacuum insulation panel 3 on 1 inside wall of shell with prior art, simplified production technology on the one hand, production is simple easily to be operated, and on the other hand has avoided because the laminating of double faced adhesive tape, the foaming inequality that arouses in the foaming process and shell 1 department foaming phenomenon.
In other embodiments, a plurality of suction cups may be further fixed on the vacuum insulation panel 3 to be fixed on the inner sidewall of the housing 1.
Correspondingly, the step of fixing the vacuum insulation panel 3 on the inner side wall of the shell 1 specifically comprises the following steps: with vacuum insulation panel 3 through the sucking disc be fixed in on the 1 inside wall of shell, compare with using double faced adhesive tape to laminate vacuum insulation panel 3 on 1 inside wall of shell with prior art, simplified production technology on the one hand, production is simple easily to be operated, and on the other hand has avoided because the laminating of double faced adhesive tape, the foaming inequality that arouses in the foaming process and shell 1 department foaming phenomenon.
In summary, the present invention provides a method for foaming a refrigerator body 10 of a refrigerator 100, including: assembling the shell 1 and the inner container 2 to form a preassembled box body 10; fixing a vacuum insulation panel 3 on the inner side wall of the shell 1; fixing a material guide device 4 between the inner container 2 and the vacuum insulation panel 3, wherein the material guide device 4 comprises a sealing body 41 with a negative pressure cavity inside, and the sealing body 41 is provided with a sealing body 411 with an opening and a sealing part 412 for sealing the opening; a rear back plate 5 covers the box body 10, and a filling cavity 6 is formed among the outer peripheral wall of the inner container 2, the shell 1, the rear back plate 5, the vacuum heat-insulating plate 3 and the material guide device 4 in a surrounding mode; injecting foaming materials into the filling cavity 6; the opening of the sealing body 41 is opened and the foaming material is guided to flow until the material injection is completed, so that the foaming material can flow uniformly, the foaming effect is good, and the heat insulation performance of the refrigerator 100 is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (8)
1. A foaming method for a refrigerator body is characterized by comprising the following steps:
assembling the outer shell and the inner container to form a preassembled box body;
fixing a vacuum insulation plate on the inner side wall of the shell;
fixing a material guide device between the inner container and the vacuum insulation panel, wherein the material guide device comprises a sealing body with a negative pressure cavity inside, and the sealing body is provided with a sealing body with an opening and a sealing part for sealing the opening;
a filling cavity is formed by enclosing the outer peripheral wall of the inner container, the shell, the rear back plate, the vacuum heat-insulating plate and the material guide device;
injecting foaming materials into the filling cavity;
the opening of the sealing body is opened and guides the foaming material to flow to the completion of material injection.
2. The foaming method of refrigerator cabinet as claimed in claim 1, wherein the sealing member has a melting temperature lower than that of the foaming material flowing into the filling chamber.
3. The foaming method of a refrigerator body as claimed in claim 1, wherein the refrigerator body comprises a bottom steel provided with a feeding port, and the opening of the sealing body is arranged on one side of the sealing body close to the bottom steel.
4. The foaming method of refrigerator cabinet as claimed in claim 1, wherein the material guiding device further comprises a negative pressure generating structure communicating with the sealing body for pumping out the gas in the sealing body.
5. The foaming method of a refrigerator cabinet according to claim 1, wherein the step of fixing the vacuum insulation panel on the inner side wall of the outer shell comprises the following steps: and fixing the vacuum insulation plate on the inner side wall of the shell through a sucker.
6. The foaming method of a refrigerator cabinet according to claim 1, wherein the step of fixing the vacuum insulation panel on the inner side wall of the outer shell comprises the following steps: and fixing the vacuum insulation plate on the inner side wall of the shell through a strong magnetic sheet.
7. The foaming method for refrigerator cabinets of claim 1, wherein the material of the sealing body is PE.
8. The foaming method for the refrigerator body as claimed in claim 1, wherein the sealing body, the vacuum insulation panel and the inner container are fixedly attached to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150400.6A CN111421735B (en) | 2020-03-06 | 2020-03-06 | Refrigerator body foaming method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150400.6A CN111421735B (en) | 2020-03-06 | 2020-03-06 | Refrigerator body foaming method |
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| Publication Number | Publication Date |
|---|---|
| CN111421735A true CN111421735A (en) | 2020-07-17 |
| CN111421735B CN111421735B (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010150400.6A Active CN111421735B (en) | 2020-03-06 | 2020-03-06 | Refrigerator body foaming method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114953315A (en) * | 2022-05-12 | 2022-08-30 | 格力电器（武汉）有限公司 | Vacuum foaming device and foaming method |
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| Publication number | Publication date |
|---|---|
| CN111421735B (en) | 2022-04-29 |
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