CN115891025A - Foaming clamp and method for realizing pure flat appearance of foaming box body - Google Patents
Foaming clamp and method for realizing pure flat appearance of foaming box body Download PDFInfo
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- CN115891025A CN115891025A CN202211449643.5A CN202211449643A CN115891025A CN 115891025 A CN115891025 A CN 115891025A CN 202211449643 A CN202211449643 A CN 202211449643A CN 115891025 A CN115891025 A CN 115891025A
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Abstract
The embodiment of the application provides a foaming clamp and a method for realizing the pure flat appearance of a foaming box body, and the method comprises the following steps: the foaming box comprises a shell, wherein an accommodating space is formed in the shell and is used for accommodating a foaming box body; the foaming clamps are arranged in the shell and positioned on two sides of the accommodating space; the elastic material layer is arranged between the accommodating space of the shell and the foaming clamp, and based on the elastic material layer and the wear-resistant layer in the shell, the foaming box body is placed in the accommodating space in the shell, foaming and die assembly are carried out, and the flatness of the foaming box body is measured after the foaming box body is foamed; and if the flatness reaches 0-1mm, finishing the foaming work of the box body, and if the flatness does not reach 0-1mm, adjusting the states of the elastic material layer and the wear-resistant layer until the flatness of the foaming box body reaches 0-1mm. The foaming fixture and the method solve the problem that the appearance of a product influences the visual experience of a user because the flatness of the box body can not reach 0-1mm in the box body foaming process in the conventional foaming fixture and method for realizing the pure flat appearance of the foaming box body.
Description
Technical Field
The application relates to the technical field of refrigerator manufacturing, in particular to a foaming clamp and a method for achieving pure flat appearance of a foaming box body.
Background
With the fact that market competition of refrigerators is more intense, requirements of consumers on appearance of the refrigerators are stricter, particularly requirements on flatness of the appearance of the refrigerators are strict, and the appearance with stereoscopic impression is easier to be favored by the consumers.
At present, the appearance of the refrigerator is flattened by mutually matching a foaming box body and a metal clamp.
However, as the foaming and demolding efficiency of the industry is improved, the foaming, demolding and curing time is reduced year by year, the bulging degree of the box body becomes more serious, the flatness data of the industrial box body is about 3-5mm, the analysis reason is that the fit clearance of the local position in the process of matching the thin metal box shell with the hard metal clamp cannot be avoided, the bending position around the box shell is high in supporting strength due to the beam and the large surface, so that the stress is concentrated on the large surface of the box body in the foaming process, the foaming bulging is caused, the foam cannot be recovered after being solidified, shaped and cooled, the appearance bulging of the product is obvious, the visual experience of a user is influenced, and the competitiveness of the product is reduced.
Disclosure of Invention
The embodiment of the application provides a foaming clamp and a method for realizing the pure flat appearance of a foaming box body, and aims to solve the technical problems that the product appearance influences the visual experience of a user and the product competitiveness is reduced due to the fact that the flatness of the box body cannot reach 0-1mm in the conventional foaming clamp and method for realizing the pure flat appearance of the foaming box body.
This application first aspect provides a foaming anchor clamps of realization foaming box pure flat appearance, includes:
the foaming box comprises a shell, wherein an accommodating space is formed in the shell and is used for accommodating a foaming box body;
the foaming clamps are arranged in the shell and positioned at two sides of the accommodating space;
the elastic material layer is arranged between the accommodating space of the shell and the foaming clamp.
In some embodiments, the foaming fixture for realizing a flat appearance of the foaming cabinet further includes:
the wear-resistant layer is arranged between the accommodating space of the shell and the elastic material layer.
In some embodiments, the elastic material layer has a shore hardness of 5-100D.
In some embodiments, the elastic material layer is made of one or more of viscose felt, viscose flooring leather, viscose EPDM, viscose oprostol, viscose polyethylene sponge, viscose PU sponge, viscose XPE sponge, polyurethane rubber, silicon rubber, natural rubber, butadiene acrylonitrile rubber, or butyl rubber.
In some embodiments, the wear layer is made of one or more of teflon, polyurethane, polyurea, and polycarbonate.
In some embodiments, the thickness of the elastomeric layer is greater than or equal to 0.1mm and the thickness of the wear layer is greater than or equal to 0.01mm.
In some embodiments, the elastic material layer, the wear-resistant layer and the foaming fixture are connected by using an adhesive material, and the type of glue coated on the surface of the adhesive material is one or more of rubber, hot melt glue, tissue paper glue or oil glue.
In some embodiments, the elastomeric layer, the wear layer, and the foaming jig are removably attached.
The second aspect of the present application provides a foaming method for realizing a flat appearance of a foaming box body, applied to a foaming fixture for the flat appearance of the foaming box body, comprising:
based on the elastic material layer and the wear-resistant layer in the shell, placing the foaming box body in the accommodating space in the shell, foaming and closing the die, and measuring the flatness of the foaming box body after the foaming box body is foamed;
if the flatness does not reach 0-1mm, adjusting the states of the elastic material layer and the wear-resistant layer until the flatness of the foaming box body reaches 0-1mm.
In some embodiments, the foaming method for achieving a flat appearance of the foaming cabinet further includes:
obtaining the times of measuring the flatness of the foaming box body;
if the times are larger than the preset threshold value, after the elastic material layer and the wear-resistant layer are replaced, the step of placing the foaming box body in the accommodating space in the shell, foaming and closing the die, and measuring the flatness of the foaming box body after the foaming box body is foamed is executed again.
The embodiment of the application provides a foaming clamp and a method for realizing the pure flat appearance of a foaming box body, and the method comprises the following steps: the foaming box comprises a shell, wherein an accommodating space is formed in the shell and is used for accommodating a foaming box body; the foaming clamps are arranged in the shell and positioned at two sides of the accommodating space; the elastic material layer is arranged between the accommodating space of the shell and the foaming clamp, and based on the elastic material layer and the wear-resistant layer in the shell, the foaming box body is placed in the accommodating space in the shell, foamed and matched, and then the flatness of the foaming box body is measured after the foaming box body is foamed; and if the flatness reaches 0-1mm, finishing the foaming work of the box body, and if the flatness does not reach 0-1mm, adjusting the states of the elastic material layer and the wear-resistant layer until the flatness of the foaming box body reaches 0-1mm. The foaming fixture and the method solve the problems that the appearance of a product influences the visual experience of a user and the competitiveness of the product is reduced because the flatness of the box body can not reach 0-1mm in the box body foaming process in the conventional foaming fixture and method for realizing the pure flat appearance of the foaming box body.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a foaming fixture for achieving a flat appearance of a foaming box body in the present application;
fig. 2 is a flowchart of a foaming method for achieving a flat appearance of a foaming box according to the present application.
Description of reference numerals:
1-a shell; 2-foaming box body; 3-foaming clamp; 4-a layer of elastomeric material; 5-wear resistant layer.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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.
Because in some technologies, when the foaming fixture for realizing the pure flat appearance of the foaming box body is applied to the foaming box body of a thinner metal box shell, the matching gap of the local position in the matching process of the foaming box body of the thinner metal box shell and the hard metal fixture can not be avoided, the bending positions around the box shell are high in supporting strength due to the existence of beams and large surfaces, so that the stress concentration in the foaming process causes the large surface of the box body, foaming bulging is caused, the foaming fixture can not be recovered after foam solidification, shaping and cooling, and further the bulging of the product appearance is obvious, the visual experience of a user is influenced, and the competitiveness of the product is reduced.
As can be seen from fig. 1, the present application provides, in a first aspect, a foaming fixture for realizing a flat appearance of a foaming box, including: the foaming device comprises a shell 1, wherein an accommodating space is formed in the shell 1 and is used for accommodating a foaming box body 2; the foaming clamps 3 are arranged in the shell 1 and positioned at two sides of the accommodating space; an elastic material layer 4, wherein the elastic material layer 4 is arranged between the accommodating space of the shell 1 and the foaming clamp 3.
In this embodiment, the elastic material 3 is prepared for the original foaming jig for realizing the flat appearance of the foaming box body, and the foaming jig 3 is opened; the method comprises the steps of pasting the elastic material layer 4 with a certain thickness between the containing space of the shell 1 and the foaming fixture 3, enabling the foaming box body to enter the fixture after pasting, closing the mold for foaming, utilizing the fact that the elastic material layer 4 is in contact with the foaming box body, the elastic material layer is soft and is very tightly contacted with the foaming box body, the problem of foaming expansion cannot occur, the box body after solidification, shaping and cooling of foam is very smooth in appearance, the flatness of the foaming box body is measured after foaming, the foaming box body with a pure flat appearance is obtained after the flatness reaches 0-1mm, and the state of the elastic material layer 4 is adjusted according to the operation when the situation cannot be met until the flatness of the foaming box body reaches 0-1mm, so that processing is completed, wherein the flatness of the foaming box body is reduced, connection between the foaming material and a box body shell of the foaming box body is also more tight, the possibility of degumming is avoided, and the service life of a subsequent refrigerator is prolonged.
In this embodiment, the elastic material layer 4 with a certain thickness is attached between the foaming clamps 3, the foaming box body is supported by the bending positions around the foaming box body, so that the large-area interference of the foaming box body is realized, and the interference fit is realized by controlling the thickness, the density and other properties of the elastic material layer 4, wherein the interference fit is realized by using the interference technology that the elastic material layer 4 is contacted with the foaming box body tightly to prevent the elastic material layer 4 from falling off when contacting with the foaming box body in the process of realizing the pure flat appearance of the foaming box body, so that the interference fit is realized by using the elasticity of the elastic material layer 4 to contact with the foaming box body tightly, so that the foaming layer of the foaming box body is connected with the box body shell of the foaming box body tightly in the foaming process. According to the technical mode, the flatness of the foamed box body is reduced to 0-1mm from 3-5mm, the average reduction ratio is 87.5%, the foamed box body is coplanar after foaming, the flatness is 0-1mm, the foamed box body is pure flat in vision, the appearance of the refrigerator is flat, and the visual experience of a user is greatly improved.
As can be seen from fig. 1, the foaming fixture for realizing the pure flat appearance of the foaming box further includes: a wear layer 5, the wear layer 5 being disposed between the accommodating space of the housing 1 and the elastic material layer 4.
In this embodiment, the wear-resistant layer 5 is disposed between the accommodating space of the housing 1 and the elastic material layer 4 and is in contact with the foam box body in an actual production process, the wear-resistant layer 5 can achieve leveling of the foam box body when not disposed in the foam jig for achieving a pure flat appearance of the foam box body, the wear-resistant layer 5 is added to prevent the elastic material 4 from being worn so as to reduce a service life of the elastic material, and on the other hand, the wear-resistant layer 5 can also achieve a heat insulation effect, and both a firmness degree of the elastic material on the housing 1 and a forming direction of the foam box body can be positively acted, so that the wear-resistant layer 5 is added to prolong a service life of the elastic material 4 when the foam jig for achieving a pure flat appearance of the foam box body is actually manufactured, and a probability that the flatness of the foam box body after being formed is higher.
In this embodiment, the shore hardness of the elastic material layer 4 is 5-100D, wherein the shore hardness is also called shore hardness or shore a hardness. The shore hardness represents a method for grading the hardness of metal, plastic and rubber materials. The capability of resisting the external force to press in is hardness, the numerical value reflects the hardness degree of the material, when the shore hardness tester is used for measuring, a pressing needle of the hardness tester is used for pressing on the surface of a sample, and the depth of the pressing needle pressed into the sample is measured; the elastic material layer 4 is set to have the shore hardness of 5-100D so as to ensure that the foaming box body cannot be flattened due to the fact that the elastic material layer 4 is too low in hardness and cannot be added to achieve an expected effect due to the fact that the elastic material layer 4 is too high in hardness in the production process of the foaming box body, and the optimal range of the shore hardness of the elastic material layer 4 is 5-100D after multiple experiments.
In this embodiment, the elastic material layer 4 is made of one or more of viscose felt, viscose plastic flooring, viscose EPDM, viscose ospirol, viscose polyethylene sponge, viscose PU sponge, viscose XPE sponge, polyurethane rubber, silicone rubber, natural rubber, nitrile rubber, or butyl rubber; tests show that the effect of the material is best in order to achieve the Shore hardness and the density of the elastic material layer 4, on one hand, the material cannot be influenced by temperature in the production process of the foaming box body, and on the other hand, the Shore hardness of the elastic material layer 4 and the fitting degree of the foaming box body can be ensured.
It can be understood that, compared with the matching of the foaming fixture 3 made of metal and the shell of the foaming box body, the foaming material is arranged on the foaming box body, the elastic material layer 4 and the wear-resistant layer 5 are arranged on the accommodating space of the shell 1 and the foaming fixture 3, and the density of the elastic material layer 4 and the wear-resistant layer 5 and the fitting degree of the foaming material are both stronger than those of the foaming fixture 3 made of metal and the shell of the foaming box body, so that the appearance of the foaming box body is flattened by utilizing the characteristics of large density and good elasticity of the elastic material layer 4; the elastic material layer 4 is characterized by high hardness, good strength, high elasticity, high wear resistance, tear resistance and aging resistance, and the elastic material layer 4 is inevitably extruded in the actual box body foaming production process, so that the elastic material layer 4 is prevented from being damaged in the actual box body foaming production process due to the characteristics of high elasticity, high wear resistance and tear resistance of the material of the elastic material layer 4.
In this embodiment, the material of the wear-resistant layer 5 is one or more of viscose teflon, polytetrafluoroethylene, polyurethane, polyurea and polycarbonate; because the wear-resistant layer 5 is arranged between the accommodating space of the shell 1 and the elastic material layer 4, the wear-resistant layer 5 can be in contact with a foaming material of the foaming box body, the material has certain chemical resistance so as to prevent the material of the wear-resistant layer 5 from being damaged in the box body foaming process, the material of the wear-resistant layer 5 also has the characteristics of oil resistance, wear resistance, high temperature resistance, aging resistance, high hardness and elasticity, because in the actual box body foaming process, the wear-resistant layer 5 can be extruded and deformed, a wear-resistant and oil-resistant material with certain hardness and elasticity is selected for preventing the wear-resistant layer 5 from being damaged in the actual box body foaming process, and the foaming material on the box body in the actual box body foaming process has certain temperature so as to ensure that the foaming material can be shaped on the foaming box body, and the material of the wear-resistant layer 5 is also selected to be made of a certain high-temperature-resistant material for ensuring the influence of the temperature of the foaming material on the box body.
In this embodiment, the thickness of the elastic material layer 4 is greater than or equal to 0.1mm, and in the case that the thickness of the elastic material layer 4 is greater than or equal to 0.1mm and is close to the value of 0.1mm in the foaming process of the box body, the flatness effect after the foaming of the box body is the best; the thickness of the wear-resistant layer 5 is greater than or equal to 0.01mm, and in the case that the thickness of the wear-resistant layer 5 is greater than or equal to 0.01mm and is close to the value of 0.01mm in the foaming process of the box body, the flatness effect of the foamed box body is the best, because the wear-resistant layer 5 only plays a role of assisting the elastic material layer 4 to ensure that the elastic material layer 4 reduces a certain wear degree in the foaming process of the box body, the influence of the elastic material layer 4 on the flatness of the foamed box body in the foaming process of the box body is not influenced due to the arrangement of the wear-resistant layer 5, and the thinner the wear-resistant layer 5 is, the better.
In this embodiment, the elastic material layer 4, the wear-resistant layer 5 and the foaming fixture 3 are connected by using a viscose material, the type of glue coated on the surface of the viscose material is one or more of rubber, hot melt adhesive, tissue paper glue or oil glue, and the viscose material has the characteristics of extrusion resistance, strong firmness and the like.
In this embodiment, the elastic material layer 4, the wear-resistant layer 5 and the foaming fixture 3 are detachably connected, the elastic material layer 4 and the wear-resistant layer 5 can be replaced at any time, the elastic material layer 4, the wear-resistant layer 5 and the foaming fixture 3 are connected by using an adhesive material, and the foaming fixture for realizing the pure flat appearance of the foaming box body can be manufactured by attaching the elastic material layer 4 and the wear-resistant layer 5 to an old mold, that is, a foaming fixture without the elastic material layer 4 and the wear-resistant layer 5; the elastic material layer 4 and the wear-resistant layer 5 can be directly attached during processing of a new foaming mold, if the elastic material layer 4 and the wear-resistant layer 5 are damaged or old in the subsequent use process, the elastic material layer 4 and the wear-resistant layer 5 only need to be separated from the viscose material, and the new viscose material is arranged to attach the new elastic material layer 4 and the new wear-resistant layer 5 to the viscose material.
As can be seen from fig. 2, the second aspect of the present application provides a foaming method for realizing a flat appearance of a foaming cabinet, and a foaming fixture applied to the flat appearance of the foaming cabinet includes:
s110, placing the foaming box body in the accommodating space in the shell based on the elastic material layer and the wear-resistant layer in the shell, foaming and closing the mould, and measuring the flatness of the foaming box body after the foaming box body is foamed;
and S120, if the flatness does not reach 0-1mm, adjusting the states of the elastic material layer and the wear-resistant layer until the flatness of the foaming box body reaches 0-1mm.
It can be understood that the foaming jig for realizing the flat appearance of the foaming box body does not flatten the foaming box body shell and the foaming material once in the box body foaming process, but extrudes the foaming box body shell and the foaming material for multiple times through the foaming jig 3, the elastic material layer 4 and the wear-resistant layer 5, so as to meet the specified requirements.
As can be seen from fig. 2, the foaming method for realizing the flat appearance of the foaming box body further includes:
s130, obtaining the times of measuring the flatness of the foaming box body;
and S140, if the times are larger than the preset threshold value, after the elastic material layer and the wear-resistant layer are replaced, the step of placing the foaming box body in the accommodating space in the shell, foaming and closing the mould, and measuring the flatness of the foaming box body after the foaming box body is foamed is executed again.
It can be understood that the foaming box shell and the foaming material are flattened by extruding the foaming box shell and the foaming material through the foaming fixture 3, the elastic material layer 4 and the wear-resistant layer 5 for multiple times to achieve the effect of flattening the foaming box shell and the foaming material; after the extrusion processes of the foaming fixture 3, the elastic material layer 4 and the wear-resistant layer 5 are performed for multiple times, if the space between the foaming box shell and the foaming material is still in an uneven state, the materials of the elastic material layer 4 and the wear-resistant layer 5 need to be replaced according to factors such as the foaming material and the temperature of the box body, so as to achieve the effect of achieving the flattening of the foaming box shell and the foaming material, the preset threshold value is set here, the preset threshold value is set according to the working experience of a worker, namely, the number of times of flattening of the foaming box shell and the foaming material under the extrusion of the foaming fixture 3, the elastic material layer 4 and the wear-resistant layer 5 under a normal condition, and if the number of times of extrusion of the foaming fixture 3, the elastic material layer 4 and the wear-resistant layer 5 in a normal production process exceeds the preset threshold value, the production process of foaming the box body needs to be completed by replacing the materials of the elastic material layer 4 and the wear-resistant layer 5 again.
The above embodiments are only intended to be specific embodiments of the present application, and are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalent substitutions, improvements, and the like made on the basis of the technical solutions of the embodiments of the present application should be included in the scope of the embodiments of the present application.
Claims (10)
1. The utility model provides a realize foaming anchor clamps of foaming box pure flat appearance which characterized in that includes:
the foaming box comprises a shell (1), wherein an accommodating space is formed in the shell (1), and is used for accommodating a foaming box body (2);
the foaming clamps (3) are arranged in the shell (1) and are positioned at two sides of the accommodating space;
an elastic material layer (4), the elastic material layer (4) is arranged between the accommodating space of the shell (1) and the foaming clamp (3).
2. The foaming jig for realizing the flat appearance of the foaming box body according to claim 1, further comprising:
a wear layer (5), the wear layer (5) set up in the casing (1) the accommodation space with between the elastic material layer (4).
3. The foaming fixture for realizing the flat appearance of the foaming box body as claimed in claim 1, wherein the shore hardness of the elastic material layer (4) is 5-100D.
4. The foaming fixture for realizing the flat appearance of the foaming box body according to claim 1, wherein the elastic material layer (4) is made of one or more of viscose felt, viscose plastic flooring, viscose EPDM, viscose kaplan, viscose polyethylene sponge, viscose PU sponge, viscose XPE sponge, polyurethane rubber, silicon rubber, natural rubber, nitrile rubber or butyl rubber.
5. The foaming fixture for realizing the flat appearance of the foaming box body according to claim 2, wherein the wear-resistant layer (5) is made of one or more of viscose teflon, polytetrafluoroethylene, polyurethane, polyurea and polycarbonate.
6. The foaming jig for realizing the flat appearance of the foaming box body according to claim 1, wherein the thickness of the elastic material layer (4) is greater than or equal to 0.1mm, and the thickness of the wear-resistant layer (5) is greater than or equal to 0.01mm.
7. The foaming fixture for realizing the flat appearance of the foaming box body as claimed in claim 2, wherein the elastic material layer (4), the wear layer (5) and the foaming fixture (3) are connected by using a viscose material, and the type of glue coated on the surface of the viscose material is one or more of rubber type, hot melt glue type, tissue paper glue or oil glue.
8. The foaming fixture for realizing the flat appearance of the foaming box body according to the claim 2 is characterized in that the elastic material layer (4), the wear-resistant layer (5) and the foaming fixture (3) are detachably connected.
9. A foaming method for realizing the pure flat appearance of a foaming box body is applied to the foaming clamp for realizing the pure flat appearance of the foaming box body in any one of claims 1 to 8, and is characterized by comprising the following steps:
based on the elastic material layer and the wear-resistant layer in the shell, placing the foaming box body in the accommodating space in the shell, foaming and closing the die, and measuring the flatness of the foaming box body after the foaming box body is foamed;
if the flatness does not reach 0-1mm, adjusting the states of the elastic material layer and the wear-resistant layer until the flatness of the foaming box body reaches 0-1mm.
10. The foaming method for realizing the flat appearance of the foaming box body according to claim 9, characterized by further comprising the following steps:
obtaining the times of measuring the flatness of the foaming box body;
if the times are larger than the preset threshold value, after the elastic material layer and the wear-resistant layer are replaced, the step of placing the foaming box body in the accommodating space in the shell, foaming and closing the die, and measuring the flatness of the foaming box body after the foaming box body is foamed is executed again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211449643.5A CN115891025A (en) | 2022-11-18 | 2022-11-18 | Foaming clamp and method for realizing pure flat appearance of foaming box body |
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| CN202211449643.5A CN115891025A (en) | 2022-11-18 | 2022-11-18 | Foaming clamp and method for realizing pure flat appearance of foaming box body |
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| CN115891025A true CN115891025A (en) | 2023-04-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271890A (en) * | 2009-02-20 | 2011-12-07 | 科瓦斯股份公司 | Vacuum-assisted foaming method and apparatus for moulding insulation of refrigeration containers |
| KR20150071036A (en) * | 2013-12-16 | 2015-06-26 | (주)엘지하우시스 | Sheet for zig for foamimg of refrigerator door |
| CN205735763U (en) * | 2016-06-24 | 2016-11-30 | 中国航空动力机械研究所 | Frothing clamp die locking mechanism and frothing clamp |
| CN206160598U (en) * | 2016-11-03 | 2017-05-10 | 合肥美菱股份有限公司 | Box of refrigerator |
| CN214000280U (en) * | 2020-07-07 | 2021-08-20 | 青岛海尔特种电冰柜有限公司 | Foaming mould auxiliary backing plate |
-
2022
- 2022-11-18 CN CN202211449643.5A patent/CN115891025A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102271890A (en) * | 2009-02-20 | 2011-12-07 | 科瓦斯股份公司 | Vacuum-assisted foaming method and apparatus for moulding insulation of refrigeration containers |
| KR20150071036A (en) * | 2013-12-16 | 2015-06-26 | (주)엘지하우시스 | Sheet for zig for foamimg of refrigerator door |
| CN205735763U (en) * | 2016-06-24 | 2016-11-30 | 中国航空动力机械研究所 | Frothing clamp die locking mechanism and frothing clamp |
| CN206160598U (en) * | 2016-11-03 | 2017-05-10 | 合肥美菱股份有限公司 | Box of refrigerator |
| CN214000280U (en) * | 2020-07-07 | 2021-08-20 | 青岛海尔特种电冰柜有限公司 | Foaming mould auxiliary backing plate |
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