CN107840013B

CN107840013B - Packaging structure, manufacturing method thereof and air conditioner assembly

Info

Publication number: CN107840013B
Application number: CN201710887285.9A
Authority: CN
Inventors: 朱森旺; 肖肖; 惠顺利; 贺志
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2017-09-26
Filing date: 2017-09-26
Publication date: 2020-03-06
Anticipated expiration: 2037-09-26
Also published as: CN107840013A

Abstract

The invention discloses a packaging structure, a manufacturing method thereof and an air conditioner assembly, wherein the manufacturing method of the packaging structure sequentially comprises the following steps: step S10, preparing a foam raw material, a film sheet, a first die and a second die; step S20, placing the foam raw material in the first mould for foaming and forming to prepare a foam piece body with a preset shape; step S30, opening the movable die of the first die, and demolding the foam piece body; step S40, opening the movable die of the second die, and sequentially placing the film sheet and the foam piece body in the second die, wherein the foam piece body is laid on the surface of the film sheet; step S50, covering the movable die of the second die, and carrying out hot-pressing treatment on the inside of the second die to prepare a foam film-coated part; and step S60, opening the movable die of the second die, and demolding the foam film coating member. The technical scheme of the invention can effectively improve the structural strength of the household appliance packaging structure.

Description

Packaging structure, manufacturing method thereof and air conditioner assembly

Technical Field

The invention relates to the field of packaging of household appliances, in particular to a packaging structure, a manufacturing method thereof and an air conditioner assembly.

Background

At present, in order to avoid collision and damage of household appliances in the transportation or carrying process, a structure with better shock resistance is generally adopted as a package of the household appliances, and a foam board is taken as an example, so that the inner surface of the foam board is abutted against the household appliances, and the external impact force on the household appliances can be effectively buffered; however, since the structural strength of the foam board is poor, if the outer side surface of the foam board is directly exposed outside, the foam board is easily damaged under the direct action of an external force, and in consideration of inconvenience caused by the overlarge weight of the packaging member, a mode of adding a paperboard on the outer side surface of the foam board is usually adopted in the prior art to protect the foam board to a certain extent.

Disclosure of Invention

The invention mainly aims to provide a manufacturing method of a packaging structure, and aims to solve the technical problem that the strength of a paperboard on the outer side surface of a household appliance packaging piece in the prior art is too low, so that the packaging piece cannot be effectively protected.

In order to achieve the above object, the present invention provides a method for manufacturing a packaging structure, which comprises the following steps:

step S10, preparing a foam raw material, a film sheet, a first die and a second die;

step S20, placing the foam raw material in the first mould for foaming and forming to prepare a foam piece body with a preset shape;

step S30, opening the movable die of the first die, and demolding the foam piece body;

step S40, opening the movable die of the second die, and sequentially placing the film sheet and the foam piece body in the second die; the foam piece body is laid on the surface of the film sheet, or the foam piece body is arranged on the side surface, facing the film sheet, of the movable mold of the second mold;

step S50, covering the movable die of the second die, and carrying out hot-pressing treatment on the inside of the second die to prepare a foam film-coated part;

and step S60, opening the movable die of the second die, and demolding the foam film coating member.

Preferably, the step S40 and the step S50 further include:

step S41, the second mold preheats the film sheet.

Preferably, the preheating temperature in the step S41 is 50 ℃ to 60 ℃.

Preferably, the step S50 specifically includes:

step S51, closing the movable die of the second die;

step S52, performing penetrating heating in the second mold;

step S53, heating the second mold at high pressure;

and step S54, performing heat preservation and heating on the second mold to obtain the foam film coated part.

Preferably, in the process of step S53, the temperature in the second mold is 87 ℃ to 93 ℃, and the pressure in the second mold is 0.8bar to 0.9 bar.

Preferably, the process of step S50 takes 30 to 50 seconds.

Preferably, the film sheet is made of PS plastic, PET plastic, PP plastic or ABS plastic.

Preferably, the thickness of the film sheet is 0.05mm to 0.3 mm.

The invention also provides a packaging structure for the household appliance, which is manufactured by the manufacturing method of the packaging structure, and the manufacturing method of the packaging structure sequentially comprises the following steps:

step S30, opening the movable die of the first die, and demolding the foam piece;

step S40, opening the movable die of the second die, and sequentially placing the film sheet and the foam piece body in the second die, wherein the foam piece body is laid on the surface of the film sheet;

step S60, opening a movable die of the second die, and demolding the foam film-coated piece;

the medial surface of foam spare body is used for the butt household electrical appliances.

The invention also provides an air conditioner assembly, which comprises an air conditioner and a packaging structure, wherein the packaging structure is manufactured by the manufacturing method of the packaging structure, and the manufacturing method of the packaging structure sequentially comprises the following steps:

the air conditioner comprises an air conditioner outdoor unit, and the inner side surface of the foam piece body is abutted to the air conditioner outdoor unit.

According to the technical scheme, the foam piece body is formed in the first die, and then the foam piece body is laid on the surface of the film sheet in the second die to complete hot pressing of the foam piece body and the film sheet to manufacture the foam film-coated piece, so that the film sheet effectively protects the outer side surface of the foam piece body and prevents the foam piece body from being damaged when being collided and impacted by the outside.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic flow chart illustrating a method of manufacturing a packaging structure according to an embodiment of the present invention;

FIG. 2 is a schematic flowchart of step S50 in FIG. 1;

FIG. 3 is a schematic structural diagram of an air conditioner assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an embodiment of the foam membrane member of FIG. 1;

FIG. 5 is a schematic view of the foam membrane element of FIG. 4 from another perspective.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				1	Foam film-coated member	11	Foam member body
12	Film sheet	2	Outdoor machine of air conditioner
				3	Packing case (food)

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a manufacturing method of a packaging structure, which is used for packaging household appliances; in this embodiment, the packaging structure is specifically used for packaging an air conditioner outdoor unit (or an air conditioner all-in-one machine), but of course, in other embodiments, the packaging structure may also be used for packaging household appliances such as a washing machine and a dehumidifier, and the design is not limited thereto.

In an embodiment of the present invention, referring to fig. 1, the manufacturing method of the packaging structure sequentially includes the following steps:

step S10, preparing a foam raw material, a film sheet 12, a first mold, and a second mold;

in this embodiment, step S10 further includes preparing a third mold, where the film sheet 12 is made of PS plastic by performing processes such as blow molding, tape casting stretching, or calendaring on the film raw material by the third mold, and it can be understood that, on one hand, the PS film has better waterproof performance compared with other films, and can effectively prevent the packaging structure from being affected with damp, and on the other hand, the PS film has better bonding effect with the foam raw material, which is beneficial to ensuring tight connection between the PS film and the foam raw material, and preventing bubbles from occurring between the plastic film and the foam raw material after the packaging structure is used for a long time, and even preventing the plastic film from falling off due to scraping; of course, in other embodiments, the film material may be made of PET plastic, PP plastic or ABS plastic, which is not limited by the present design. It should be noted that the design is not limited thereto, and in other embodiments, the film sheet 12 may be purchased directly.

Step S20, placing the foam raw material in a first mould for foaming and forming to prepare a foam piece body 11 with a preset shape;

it is understood that the first mold is a foaming device capable of foaming and shaping the foam material into the foam body 11, in this embodiment, the foam body 11 is plate-shaped, and of course, in other embodiments, the foam may have other shapes, and the design is not limited thereto.

Step S30, opening the movable die of the first die, and demoulding the foam piece body 11;

step S40, opening a movable die of a second die, sequentially placing the film sheet 12 and the foam piece body 11 in the second die, and paving the foam piece body 11 on the surface of the film sheet 12;

it will be appreciated that this arrangement facilitates the mounting and positioning of the foam body 11 by a user. It should be noted that the present design is not limited to this, and in another embodiment, step S40 includes: the movable mold of the second mold is opened, the film sheet 12 and the foam body 11 are sequentially placed in the second mold, and the foam body 11 is placed on the side of the movable mold of the second mold facing the film sheet 12.

Step S50, covering the movable die of the second die, and carrying out hot-pressing treatment on the second die to obtain a foam film-coated part 1;

it will be appreciated that the foam body 11 is located adjacent to the second mould movable mould which, when closed, presses the foam body 11 against the film sheet 12. In this embodiment, the surface of the foam body 11 facing the film sheet 12 is flat, so as to ensure the tightness of the connection between the film sheet 12 and the foam body 11.

Step S60 is to open the movable die of the second die and release the foam coated member 1.

Usually, in the demolding process, in the process that the ejector rod of the movable mold abuts against the foam coating member 1, a demolding groove is formed on the outer side surface of the foam coating member 1.

In this embodiment, referring to fig. 3 to 5, the foam film covering member 1 is packaged at the bottom of the outdoor unit 2, and the packaging structure of the outdoor unit 2 further includes a packaging box 3 that is adapted to fit the outdoor unit 2 and the film covering member from top to bottom, it can be understood that the inner side surface of the foam film covering member 1 supports the outdoor unit 2, the outer side surface is exposed, and the film sheet 12 on the outer side surface effectively protects the foam member body 11; of course, in other embodiments, the foam film member 1 may also be packaged on the top of the outdoor unit 2, or on the side of the outdoor unit 2, which is not limited by the present design.

According to the technical scheme, the foam piece body 11 is formed in the first die, and then the foam piece body 11 is laid on the surface of the film sheet 12 in the second die to complete hot pressing of the foam piece body 11 and the film sheet 12, so that the foam film coated piece 1 is manufactured, the film sheet 1212 effectively protects the outer side surface of the foam piece body 11 and prevents the foam piece body 11 from being damaged when being collided and impacted by the outside, and compared with a packaging structure in which a paperboard is arranged on the outer side surface of the foam piece body 11 in the prior art, on one hand, the film sheet 1212 effectively improves the overall structural strength of the packaging structure, and on the other hand, the film sheet 1212 also improves the moisture resistance of the packaging structure.

Further, the film thickness of the film sheet 12 is 0.05mm to 0.3 mm. It can be understood that the film sheet 12 having a too small thickness has a poor protection effect on the foam body 11, while the film sheet 12 having a too large thickness easily causes a waste of the structure, thereby increasing the manufacturing cost of the packaging structure.

Further, between the step S40 and the step S50, the method further includes: in step S41, the second mold preheats the film sheet 12. It can be understood that the heating temperature of the film sheet 12 and the foam body 11 during the hot pressing process is higher, the preheating process is added, the film sheet 12 can be effectively prevented from being heated to an excessively high temperature instantly, and the film sheet 12 is prevented from being damaged due to overheating. In this embodiment, the temperature in the preheating process is 50 ℃ to 60 ℃, and since the movable mold of the second mold is in an open state at this time, the pressure inside the second mold is the atmospheric pressure.

Further, referring to fig. 2, step S50 specifically includes:

step S51, closing the movable die of the second die;

step S52, performing penetrating heating in the second mold;

in the process, the temperature in the first die is 70-80 ℃, and the pressure in the first die is 0.7-0.8 bar.

Step S53, heating the second mold at high pressure;

in the process, the temperature in the first die is 87-93 ℃, and the pressure in the first die is 0.8-0.9 bar, so that the molecular motion and fusion of the foam piece body 11 and the film sheet 12 are accelerated through high temperature and high pressure, and the connection stability of the foam piece body 11 and the film sheet 12 is fully ensured.

And step S54, performing heat preservation and heating on the second mold to obtain the foam film coated part 1.

In the process, the temperature in the first die is 85 ℃, and the pressure in the first die is 0.7 bar-0.8 bar.

In this embodiment, the connection process between the film sheet 12 and the foam body 11 is performed by using a steam hot-pressing method, and it can be understood that steam hot-pressing is a heat connection method widely used in the prior art, and has the advantages of high efficiency, stability and the like. It should be noted that the design is not limited to this, and in other embodiments, the film sheet 12 and the foam body 11 may be connected by other hot pressing methods.

The present invention further provides a packaging structure, which is manufactured by a manufacturing method of the packaging structure, the manufacturing method of the packaging structure specifically refers to the above embodiments, and since the packaging structure adopts all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and details are not repeated herein.

Referring to fig. 3 to 5, in the present embodiment, the packaging structure includes:

the foam piece body 1 is provided with a first surface (not shown) and a second surface (not shown) which are oppositely arranged, and the first surface is used for being matched and installed by an air conditioner outdoor unit; and

and the film sheet 2 is covered on the second surface, and the film sheet 2 and the foam piece body 1 are integrated.

It can be understood that the foam structure has a good cushioning property, and is advantageous for protecting the outdoor unit 3 of the air conditioner. In addition, referring to fig. 1, in this embodiment, the foam body 1 is a foam board packaged at the bottom of the outdoor unit 3, and the packaging structure of the outdoor unit 3 further includes a packaging box 4 that is adapted to fit the outdoor unit 3 and the foam board from top to bottom, it can be understood that the first surface of the foam board supports the outdoor unit 3, and the second surface is exposed, and the film sheet 2 on the second surface effectively protects the foam board; of course, in other embodiments, the foam member may be packaged on the top of the outdoor unit 3 or on the side of the outdoor unit 3, which is not limited by the present design.

According to the technical scheme, the film sheet 2 is covered on the second surface of the foam piece body 1, and the film sheet 2 and the foam piece body 1 are arranged integrally, so that the film sheet 2 effectively protects the second surface of the foam piece body 1 and prevents the foam piece body 1 from being damaged when being collided and impacted by the outside, compared with a packaging structure in which a paperboard is arranged on the outer side surface of the foam piece body 1 in the prior art, on one hand, the film sheet 2 effectively improves the overall structural strength of the packaging structure, on the other hand, the film sheet 2 also improves the moisture resistance of the packaging structure, and by adding the color master in the material of the film sheet 2, the appearance color of the film sheet 2 can be optionally changed, and the appearance effect of the packaging structure is improved.

Further, the film sheet 2 is a plastic film layer. It can be understood that the plastic film is a structure widely used in the prior art, and has the advantages of low thickness, stable structure, easy obtaining and the like. Note that the present design is not limited to this, and in other embodiments, the film sheet 2 may be a silicone film layer or the like. In the embodiment, the plastic film layer is a PS film, which can be understood that, on one hand, the PS film has better waterproof performance than other films, and can effectively prevent the packaging structure from being affected with damp, and on the other hand, the PS film has better bonding effect with the foam part body 1, which is beneficial to ensuring tight connection between the PS film and the foam part body 1, and avoiding bubbles between the plastic film and the foam part body 1 after the packaging structure is used for a long time, even the plastic film falls off due to scraping; of course, in other embodiments, the plastic film layer may also be a PET plastic film, a PP plastic film, or an ABS plastic film, etc., which is not limited by the present design.

Further, the film sheet 2 has a thickness of 0.05mm to 1.5 mm. It can be understood that the film sheet 2 has too small thickness, which results in poor protection effect on the foam body 1, while the film sheet 2 has too large thickness, which easily causes structural waste, and then increases the manufacturing cost of the packaging structure.

Further, the film sheet 2 is integrally formed on the second surface of the foam body 1 by hot pressing. The hot-pressing integrated forming technology is widely applied to the prior art, has the advantages of stable connection, high production efficiency and the like, and can effectively ensure the connection tightness of the film sheet 2 and the foam piece body 1 and avoid the phenomena of loosening and falling of the film sheet 2 after the packaging structure is used for a long time. It should be noted that the design is not limited to this, and in other embodiments, the film sheet 2 may be integrally formed on the second surface of the foam body 1 by bonding or hydraulic pressure.

Furthermore, a plurality of convex points are convexly arranged on the second surface of the foam piece body 1, a concave pit is formed on the inner surface of the film sheet 2 corresponding to each convex point, a convex corresponding to each concave pit is formed on the outer surface of the film sheet 2, and the convex points are covered on the film sheet 2 through the concave pits in a matched mode. It can be understood that, as mentioned above, the film sheet 2 is preferably coated on the second surface of the foam member body 1 by hot-pressing and integral molding, and the second surface is provided with the raised points, which will undoubtedly increase the contact area between the film sheet 2 and the second surface, so as to better realize the heat transfer therebetween and ensure the adhesion of the film sheet 2 on the second surface. In this embodiment, the protruding height of the protrusion is S2, and the range of the protruding height of S2 is 0.1mm to 1mm, that is, the protruding height of the bump on the second surface is 0.1mm to 1mm, it can be understood that the protruding height of the bump is too small, the effect of enhancing the adhesion and covering tightness of the film sheet 2 on the second surface is poor, the protruding height of the bump is too large, and the structural strength of the pit formed by the film sheet 2 in a manner of being matched with the bump is poor.

In this embodiment, the plurality of bumps are arranged on the second surface at intervals by using a group as a unit, and a plurality of groups of pits are formed on the film sheet 2 corresponding to the plurality of groups of bumps. Moreover, in the present embodiment, the plurality of sets of bumps are arranged in a rectangular array on the second surface, and it can be understood that, since the gain of the single bump to the contact area between the film sheet 2 and the second surface is small, the tightness of the film sheet 2 attached to the second surface is significantly improved by grouping the plurality of bumps. In addition, in this embodiment, the arrangement of any group of the bumps is circular, the diameter of any group of the bumps is S1, and the range of S1 is 5mm to 15mm, but of course, in other embodiments, the arrangement of any group of the bumps may be arranged in other shapes such as a regular hexagon, and this is not limited by this design.

Furthermore, a plurality of demoulding grooves are formed on the second surface of the foam piece body 1 (when the foam piece body 1 is demoulded, the ejector rod is pressed and formed), convex parts are formed on the inner surface of the film sheet 2 corresponding to the demoulding grooves, concave parts corresponding to the convex parts are formed on the outer surface of the film sheet 2, and the demoulding grooves are covered on the convex parts of the film sheet 2 in a matching way. It will be appreciated that this arrangement is also advantageous to achieve the tightness of the application of the film web 2 to the second surface. In this embodiment, the recessed depth of the concave portion is S4, and the value range of S4 is 0.1mm to 1mm, that is, the recessed depth range of the demolding groove on the second surface is 0.1mm to 1mm, it can be understood that the recessed depth of the demolding groove is too small, the effect of enhancing the adhesion and covering tightness of the film sheet 2 on the second surface is poor, the recessed depth of the demolding groove is too large, and the structural strength of the concave pit formed by the film sheet 2 in a manner of being matched with the convex point is poor.

In this embodiment, the drawing of patterns groove is equipped with a plurality ofly, and a plurality of drawing of patterns grooves are arranged along the periphery interval of second surface respectively, can understand, so sets up, and the even roof pressure of ejector pin presses the second surface of foam spare body 1, is favorable to the stability of foam spare body 1 drawing of patterns. In this embodiment, the demolding groove is a cylindrical groove, but in other embodiments, the demolding groove may be a rectangular parallelepiped groove, and the design is not limited thereto. In addition, in this embodiment, a plurality of feeding grooves (formed by connecting the feeding holes when the foam body 1 is formed) are formed on the second surface of the foam body 1 at intervals of the material saving groove 111 and the demolding groove, and the inner surface of the film sheet 2 is also adapted to cover the feeding grooves.

The invention also provides an air conditioner assembly, which comprises an air conditioner and a packaging structure, wherein the air conditioner comprises an air conditioner outdoor unit, the packaging structure is manufactured by the manufacturing method of the packaging structure, the manufacturing method of the packaging structure specifically refers to the above embodiments, and the air conditioner assembly adopts all the technical schemes of all the embodiments, so that the air conditioner assembly at least has all the beneficial effects brought by the technical schemes of the above embodiments, and the details are not repeated.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A method for manufacturing a packaging structure for packaging household electrical appliances, characterized in that it comprises, in order, the following steps:

the foam piece body is provided with a first surface and a second surface which are oppositely arranged, the first surface is used for being matched and installed by an air conditioner outdoor unit, a plurality of salient points are convexly arranged on the second surface, the film sheet is covered on the second surface, and the film sheet and the foam piece body are arranged into a whole;

a concave pit is formed on the inner surface of the film sheet corresponding to each convex point, a convex corresponding to each concave pit is formed on the outer surface of the film sheet, and a plurality of groups of convex are formed on the outer surface of the film sheet.

2. The method of manufacturing a packaging structure of claim 1, further comprising, between steps S40 and S50:

step S41, the second mold preheats the film sheet.

3. The method for manufacturing a packaging structure according to claim 2, wherein the temperature of the preheating in the step S41 is 50 ℃ to 60 ℃.

4. The method for manufacturing a packaging structure according to claim 1, wherein the step S50 specifically includes:

step S51, closing the movable die of the second die;

step S52, performing penetrating heating in the second mold;

step S53, heating the second mold at high pressure;

5. The method of manufacturing a packaging structure according to claim 4, wherein, in the process of step S53, the temperature in the second mold is 87 ℃ to 93 ℃, and the pressure in the second mold is 0.8bar to 0.9 bar.

6. The method of manufacturing a packaging structure as claimed in claim 4, wherein the process of step S50 takes 30S to 50S.

7. The method of manufacturing a packaging structure according to any one of claims 1 to 6, wherein the film sheet is made of PS plastic, PET plastic, PP plastic or ABS plastic.

8. The method of manufacturing a packaging structure according to claim 7, wherein the film sheet has a thickness of 0.05mm to 0.3 mm.

9. A packaging structure is used for packaging household appliances and is characterized in that the packaging structure is manufactured by the manufacturing method of the packaging structure from 1 to 8, and the inner side surface of a foam piece body is used for being abutted against the household appliances.

10. An air conditioner assembly comprising an air conditioner and the packaging structure of claim 9, wherein the air conditioner comprises an outdoor unit, and wherein the inner side of the foam member body abuts against the outdoor unit.