Cushion packaging structure

Abstract

The utility model relates to the technical field of electric appliance packaging, in particular to a cushion packaging structure. The cushion packaging structure comprises an outer layer and an inner layer, the inner layer and the outer layer are oppositely arranged, a core layer is arranged between the inner layer and the outer layer, the core layer comprises a polyurethane foaming material, the polyurethane foaming material is composed of isocyanate and polyhydric alcohol, and when the core layer is pressed, the polyurethane foaming material is separated from the outer layer. The polyurethane foaming material expands and is supported at the position between the inner layer and the outer layer, the buffering packaging structure can expand to serve as a buffering material to protect a product after pressure is applied, and the buffering packaging structure has the advantages of being easy to package and high in flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliance packaging, in particular to a buffer packaging structure. Background Art

[0002] Cushioning packaging, also known as shockproof packaging, plays an important role in various packaging methods. From production to use, products have to go through a series of transportation, storage, stacking and loading and unloading processes and are placed in a certain environment. In any environment, there will be a strong force acting on the product and causing mechanical damage to the product. In order to prevent the product from being damaged, it is necessary to try to reduce the impact of external forces. The so-called cushioning packaging refers to packaging that takes certain protective measures to reduce the impact and vibration of the contents and protect them from damage.

[0003] At present, for larger household appliances, such as large vertical boxes, the main packaging method is to add four side foam strips, a packaging top cover, a packaging base and an outermost packaging box to the outside of the plastic bag of the whole machine.

[0004] However, the packaging side strips and packaging top cover need to be molded and foamed separately, which undoubtedly increases the production cost. After foaming, the foam volume increases and seriously consumes transportation and storage space. The packaging side strips are usually slender and easy to break during turnover and packaging insertion, and the excessive length makes packaging operations inconvenient. The foam protection area needs to be consistent with the proportion of the foam foaming mold, which leads to the mold size being too large, and the foam protection also needs to be fixed with tape, which increases the cumbersomeness of the packaging operation. Utility Model Content

[0005] The purpose of the utility model is to avoid the shortcomings of the prior art and provide a cushioning packaging structure, which can expand into a cushioning material to provide protection for the product after pressure is applied, and has the advantages of easy packaging and high flexibility.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A cushioning packaging structure is provided, comprising:

[0008] Outer layer,

[0009] an inner layer, the inner layer is opposite to the outer layer, and a core layer is provided between the inner layer and the outer layer,

[0010] The core layer includes polyurethane foam material, and the polyurethane foam material includes material A and material B. When the core layer is pressed, material A and material B in the polyurethane foam material are mixed and expanded and supported at a position between the inner layer and the outer layer.

[0011] In some embodiments, the outer layer is constructed as an outer bag layer, the inner layer is constructed as an inner bag layer, the inner bag layer is inserted into the outer bag layer, the inner bag layer and the outer bag layer constitute a packaging bag, and the core layer is filled between the outer bag layer and the inner bag layer.

[0012] In some embodiments, the outer side of the outer bag layer faces outward, the inner side of the outer bag layer is opposite to the outer side of the inner bag layer, and the inner side of the inner bag layer is used to wrap the product;

[0013] The core layer is filled in a designated position between the outer bag layer and the inner bag layer, and the designated position is a collision-prone position.

[0014] In some embodiments, the outer bag layer and the inner bag layer are both plastic bags, and the outer side of the outer bag layer is a plastic bubble surface;

[0015] The material A is isocyanate, and the material B is polyol.

[0016] In some embodiments, an outer side surface of the inner bag layer is provided with an embedding groove, and the core layer is embedded in the embedding groove so as to be positioned on the outer side surface of the inner bag layer.

[0017] In some embodiments, the core layer is further provided with a plurality of micropores, the isocyanate and the polyol are respectively filled in the micropores, and the isocyanate and the polyol are disposed adjacent to each other.

[0018] In some embodiments, the inner bag layer is constructed into a shape adapted to the product, and the outer bag layer is a cold-stretched plastic film layer.

[0019] In some embodiments, the inner bag layer and / or the outer bag layer is provided with exhaust holes.

[0020] The beneficial effects of the cushioning packaging structure of the utility model are as follows:

[0021] (1) The cushioning packaging structure of the utility model has a core layer disposed between the inner layer and the outer layer. The core layer includes a polyurethane foam material. When pressure is applied to the polyurethane foam material, the material A and the material B in the polyurethane foam material are mixed and expand, so that the position between the inner layer and the outer layer expands and then produces a cushioning effect. Since the required core layer position can be arranged according to the collision-prone position, the entire packaging structure does not need to be filled with the polyurethane foam material, which can save the amount to the maximum extent and reduce the cost.

[0022] (2) The cushioning packaging structure of the utility model can form the required protection area and protection configuration by adjusting the filling position, thus overcoming the problem that the traditional method requires a mold to produce the protection configuration, improving production efficiency, avoiding the problem of off-site mold foaming, large turnover and storage space, and being able to flexibly set the core layer position.

[0023] (3) In the cushioning packaging structure of the utility model, the core layer (polyurethane foam material) is arranged inside the inner layer and the outer layer, and the inner layer, the outer layer and the polyurethane foam material are not arranged separately. Therefore, there is no need to separately fix the core layer with a cushioning effect during packaging, thereby improving the packaging efficiency and overcoming the problem that the side strips of traditional packaging are slender and easy to break.

[0024] (4) The cushioning packaging structure of the utility model has a polyurethane foam material in the core layer that can expand and contract. When the polyurethane foam material in the core layer expands, it can tightly wrap the product, reducing the need for tape to fix the packaging, and further improving the packaging efficiency.

[0025] A method for packaging an electrical appliance is also provided, comprising the following steps:

[0026] Adopting the above-mentioned cushioning packaging structure;

[0027] Put the packaging bag on the electrical appliance to be packaged.

[0028] The outer bag layer is pressed to make the isocyanate and polyol in the polyurethane foam on the core layer flow out and mix together, and the polyurethane foam expands and fills the position between the outer bag layer and the inner bag layer to achieve a buffering effect.

[0029] In some embodiments, a production line is also used, and a rotatable packaging base is arranged on the production line;

[0030] A pressing plate is arranged on the peripheral side of the packaging base;

[0031] Placing the electrical appliance to be packaged on the packaging base, and after the electrical appliance is put into the packaging bag, driving the pressing plate to approach the packaging bag until the pressing plate presses the outer bag layer;

[0032] After one pressing is completed, the packaging base is rotated to make the pressing plate press other positions of the packaging bag to achieve expansion of the entire packaging bag.

[0033] The beneficial effects of the electrical appliance packaging method of the utility model are as follows:

[0034] The utility model discloses an electrical appliance packaging method, which puts a packaging bag into the electrical appliance, and generates a reaction force on the surface of the electrical appliance by pressing the outer bag layer of the packaging bag, so that the isocyanate and the polyol in the polyurethane foam material in the core layer between the outer bag layer and the inner bag layer are mixed to produce an expansion effect, and then a buffering effect is produced, thereby overcoming the problem of cumbersome packaging operation caused by the traditional need to separately package the packaging side strips on the electrical appliance, and the packaging bag occupies less space before it expands, thereby reducing the storage space and facilitating the movement of the packaging bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the outer layer, core layer and inner layer of a specific implementation method of the utility model.

[0036] Figure 2 It is a structural top view of the cushioning packaging structure of a specific implementation mode of the utility model.

[0037] Figure 3 It is a structural schematic diagram of the outer bag layer of a specific implementation method of the utility model.

[0038] Figure 4 It is a structural schematic diagram of the inner bag layer of a specific implementation method of the utility model.

[0039] Figure 5 yes Figure 4 Schematic diagram of the structure at A in the middle.

[0040] Figure 6 It is a structural schematic diagram of the assembly line working state of a specific implementation method of the utility model.

[0041] Figure 7 It is a flow chart of an electrical appliance packaging method according to a specific implementation mode of the utility model.

[0042] Reference numerals:

[0043] 1. Outer layer; 2. Inner layer; 3. Core layer; 4. Polyurethane foam material; 41. Material A; 42. Material B; 5. Outer bag layer; 6. Inner bag layer; 7. Packaging bag; 8. Grooves; 9. Micropores; 11. Packaging base; 12. Press plate; 13. Assembly line; 14. Plastic bubbles; 15. Foaming space. DETAILED DESCRIPTION

[0044] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0045] The terms used in the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The singular forms "a", "the" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0046] Cushioning packaging, also known as shockproof packaging, plays an important role in various packaging methods. From production to use, products have to go through a series of transportation, storage, stacking and loading and unloading processes and are placed in a certain environment. In any environment, there will be a strong force acting on the product and causing mechanical damage to the product. In order to prevent the product from being damaged, it is necessary to try to reduce the impact of external forces. The so-called cushioning packaging refers to packaging that takes certain protective measures to reduce the impact and vibration of the contents and protect them from damage.

[0047] At present, for larger household appliances, such as large vertical boxes, the main packaging method is to add four side foam strips, a packaging top cover, a packaging base and an outermost packaging box to the outside of the plastic bag of the whole machine.

[0048] However, the packaging side strips and the packaging top cover need to be molded and foamed separately, which undoubtedly increases the production cost. After foaming, the foam volume increases and seriously consumes the transportation and storage space. The packaging side strips are usually slender, and the packaging side strips are easy to break during turnover and packaging insertion, and the excessive size is inconvenient for packaging operations. The foam protection area needs to be consistent with the proportion of the foam foaming mold, which leads to the mold size being too large, and the foam protection also needs to be fixed with tape, which increases the cumbersomeness of the packaging operation. In view of this technical problem, the following embodiments are provided.

[0049] Example 1

[0050] See also Figure 1 The cushioning packaging structure disclosed in this embodiment includes:

[0051] Outer layer 1,

[0052] Specifically, the outer layer 1 is a surface located outside;

[0053] An inner layer 2, the inner layer 2 is arranged opposite to the outer layer 1, and a core layer 3 is arranged between the inner layer 2 and the outer layer 1,

[0054] Specifically, the inner layer 2 is aligned with the outer layer 1, and a certain space is left between the inner layer 2 and the outer layer 1. At this time, the core layer 3 is placed between the inner layer 2 and the outer layer 1, so that the core layer 3 can be positioned between the inner layer 2 and the outer layer 1, avoiding unnecessary displacement of the core layer 3.

[0055] Exemplarily, the core layer 3 may be fixedly attached between the inner layer 2 and the outer layer 1; the core layer 3 may also be non-fixedly filled in the position between the inner layer 2 and the outer layer 1, as long as there is enough space between the inner layer 2 and the outer layer 1.

[0056] In this embodiment, the core layer 3 includes a polyurethane foam material 4, and the polyurethane foam material 4 includes an isocyanate (A material 41) and a polyol (B material 42). In practical applications, the A material 41 and the B material 42 may also be other components as long as they can expand the polyurethane foam material 4. When the core layer 3 is pressed, the polyurethane foam material 4 expands and is supported at a position between the inner layer 2 and the outer layer 1.

[0057] Specifically, the polyurethane foam material 4 can be purchased on the market. The polyurethane foam material 4 is composed of two components, component A is a polyol, and component B is an isocyanate. When component A and component B are mixed, the two components will be combined and foamed and solidified within one minute. Traditional polyurethane foam materials 4 are mostly used for building insulation. In this embodiment, when pressure is applied to the polyurethane foam material 4, the isocyanate and polyol in the polyurethane foam material 4 will mix and foaming reaction will occur. The foamed polyurethane foam material 4 will expand and support the position between the inner layer 2 and the outer layer 1. Since the expanded polyurethane foam material 4 has a buffering effect, when the polyurethane foam material 4 expands, the entire buffer packaging structure will have an expansion effect.

[0058] The above-mentioned cushioning packaging structure has a core layer 3 arranged between the inner layer 2 and the outer layer 1, and the core layer 3 includes a polyurethane foam material 4. When pressure is applied to the polyurethane foam material 4, the polyurethane foam material 4 will expand, so that the position between the inner layer 2 and the outer layer 1 expands and then produces a cushioning effect. Among them, since the required core layer 3 position can be arranged according to the easy-to-collision position, it is not necessary to fill the entire packaging structure with polyurethane foam material 4, which can save the amount to the maximum extent and reduce the cost. By adjusting the filling position, the required protection area and protection configuration can be formed, overcoming the problem that the traditional mold is required to produce the protection configuration, improving the production efficiency, avoiding the problem of off-site mold foaming, turnover, and storage occupying a large space, and being able to flexibly set the position of the core layer 3. The core layer 3 (polyurethane foam material 4) is arranged in the inner layer 2 and the outer layer 1, and the inner layer 2, the outer layer 1 and the polyurethane foam material 4 are not separately arranged. Therefore, there is no need to separately install the core layer 3 with a cushioning effect, which improves the efficiency of packaging, and also overcomes the problem that the traditional packaging side strips are slender and easy to break. The polyurethane foam material 4 in the core layer 3 can expand and contract. When the polyurethane foam material 4 in the core layer 3 expands, it can tightly wrap the product without the need for additional tape to fix it, further improving the packaging efficiency.

[0059] In addition, in order to stably connect the outer layer 1 and the inner layer 2 together, the opposite surfaces of the inner layer 2 and the outer layer 1 can be partially connected, and the remaining space between the inner layer 2 and the outer layer 1 can be filled with the core layer 3.

[0060] Example 2

[0061] See also Figure 2 Since the inner layer 2 and the outer layer 1 only form a buffer surface, in order to make the buffer structure better cover the product, the inner layer 2 and the outer layer 1 need to be constructed in a configuration that is compatible with the product configuration. Therefore, based on Example 1, this example discloses that the outer layer 1 is constructed as an outer bag layer 5, the inner layer 2 is constructed as an inner bag layer 6, the inner bag layer 6 is inserted into the outer bag layer 5, the inner bag layer 6 and the outer bag layer 5 form a packaging bag 7, and the core layer 3 is filled in the position between the outer bag layer 5 and the inner bag layer 6.

[0062] Specifically, the inner layer 2 and the outer layer 1 are respectively constructed into corresponding bag types, that is, the outer layer 1 is constructed as an outer bag layer 5, and the inner layer 2 is constructed as an inner bag layer 6. At this time, the inner bag layer 6 is inserted into the outer bag layer 5, so that a space for filling the core layer 3 is formed between the inner bag layer 6 and the outer bag layer 5, and the inner bag layer 6 and the outer bag layer 5 are combined to form a packaging bag 7 structure. When it is a packaging bag 7 structure, the packaging bag 7 can be directly wrapped on the product to achieve a protective effect on the product.

[0063] Further, in order to illustrate how to construct the corresponding inner bag layer 6 and outer bag layer 5 that are stably connected together, by way of example, certain points on the opposite surfaces of the inner layer 2 and the outer layer 1 are connected by using double-sided pressure-sensitive adhesive, thereby effectively fixing the inner bag layer 6 and the outer bag layer 5 together.

[0064] Exemplarily, both the inner 2 bags and the outer 1 bag are constructed into a cube shape, which is used to package products with a cube configuration, such as refrigerators.

[0065] Example 3

[0066] See also Figures 1-2 , since not all positions will experience large collisions during transportation, and positions where collisions do not occur will not require a buffering effect, this can save materials on the one hand, and reduce the space occupied by the entire buffer structure on the other hand. Therefore, based on Example 2, this embodiment discloses that the outer side of the outer bag layer 5 faces outward, the inner side of the outer bag layer 5 is opposite to the outer side of the inner bag layer 6, and the inner side of the inner bag layer 6 is used to wrap the product;

[0067] The core layer 3 is filled in a designated position between the outer bag layer 5 and the inner bag layer 6, and the designated position is a collision-prone position.

[0068] Specifically, some locations are prone to collision, so polyurethane foam material 4 is placed at some locations. At this time, the location where polyurethane foam material 4 is placed in the packaging bag 7 will have a higher anti-collision effect. That is, discontinuous buffer spaces are randomly set according to the places that are prone to collision during product transportation, and foaming into buffer foam forms protection, which can effectively reduce the amount of foam used and avoid the problem of large turnover and storage space.

[0069] For example, in the packaging bag 7 , generally, four corners are prone to collision, so polyurethane foam materials 4 are placed at the four corners of the four packaging bags 7 . At this time, the four corners of the packaging bag 7 have a higher anti-collision effect.

[0070] Example 4

[0071] See also Figure 3 In order to improve the cushioning effect, both the inner layer 2 and the outer layer 1 can further improve their cushioning effect. Therefore, based on Example 1, this example discloses that the outer bag layer 5 and the inner bag layer 6 are both plastic bags, and the outer side of the outer bag layer 5 is the plastic bubble 14 surface.

[0072] Specifically, the outer bag layer 5 and the inner bag layer 6 are both plastic bags, and the bag surface of the outer bag layer 5 and the surface of the inner bag layer 6 are both plastic bubble 14 surfaces, which can effectively provide a cushioning effect. In addition, the plastic bubble 14 surface is a bubble surface that is often provided on the market.

[0073] Example 5

[0074] See also Figures 3-4 , assuming that the core layer 3 is simply placed between the inner layer 2 and the outer layer 1, the core layer 3 will be easily offset, and it is not easy to fill the core layer 3 between the inner layer 2 and the outer layer 1 alone, otherwise the inner layer 2 and the outer layer 1 need to be opened. Therefore, based on Example 4, this embodiment discloses that the outer side surface of the inner bag layer 6 is provided with an embedding groove 8, and the core layer 3 is embedded in the embedding groove 8 to be positioned on the outer side surface of the inner bag layer 6.

[0075] Specifically, during the process of injection molding the inner bag layer 6, an embedding groove 8 is formed on the outer side of the inner bag layer 6, and the relevant core layer 3 is subsequently embedded in the embedding groove 8. Specifically, the core layer 3 is bonded to the embedding groove 8 by adhesive, so that the core layer 3 is positioned on the outer side of the inner bag layer 6. When the outer side surface of the inner bag layer 6 is relatively close to the inner side surface of the outer bag layer 5, the core layer 3 will be located between the inner bag layer 6 and the outer bag layer 5 along the outer side surface of the inner bag layer 6, so that the core layer 3 can be installed conveniently and quickly.

[0076] Exemplarily, a plurality of embedding grooves 8 are provided on the outer side surface of the inner bag layer 6 , and the plurality of embedding grooves 8 are aligned and arranged. At this time, the core layer 3 is in a strip shape and embedded in the embedding grooves 8 .

[0077] Example 6

[0078] See also Figure 5 Since the polyurethane foam material 4 is a two-component material and the two components need to be mixed together to expand, in order to enable the two components in the polyurethane foam material 4 to be efficiently mixed together, based on Example 5, this embodiment discloses that the core layer 3 is also provided with a plurality of micropores 9, and the isocyanate and the polyol are respectively filled in the micropores 9, and the isocyanate and the polyol are arranged adjacent to each other.

[0079] Specifically, the core layer 3 is used as a plastic plate layer. When the core layer 3 is injection molded, a plurality of micropores 9 are opened on the core layer. The relevant isocyanate and polyol are filled in the individual micropores 9. After the relevant isocyanate and polyol are filled, a film is swept on the opening of the micropore 9. The material of the film can be a glutinous rice paste layer. The isocyanate and the polyol are arranged adjacent to each other, so that the isocyanate and the polyol are quickly mixed together.

[0080] Exemplarily, a core layer 3 is placed in each embedding groove 8 on the outer side of the inner bag layer 6, and each core layer 3 is provided with two rows of micropores 9, one row of micropores 9 is filled with isocyanate, and the other row of micropores 9 is filled with polyol.

[0081] Furthermore, every six rows of micropores 9 in each core strip constitute a micropore 9 group, and a certain distance is set between adjacent micropore 9 groups, which facilitates the connection of the outer side surface of the inner bag layer 6 and the inner side surface of the outer bag layer 5 together.

[0082] Example 7

[0083] See also Figure 2 In order to make the packaging bag 7 better wrap the product, the packaging bag 7 needs to be arranged in a certain shape and the packaging bag 7 can tightly wrap the product. Therefore, based on Example 1, this embodiment discloses that the inner bag layer 6 is constructed in a shape suitable for the product, and the outer bag layer 5 is a cold-stretched plastic film layer.

[0084] Specifically, when setting the inner bag layer 6, it is first set according to the product configuration, so that the inner bag layer 6 can be bonded with the outer layer 1 to form foaming spaces 15 of different shapes according to the specific product protection. The foaming space 15 can be a continuous shape or intermittent and random, which can achieve the purpose of increasing the effective buffer protection area with less foaming material.

[0085] Exemplarily, the inner bag layer 6 is set to be a cubic shape. Then, the outer bag layer 5 is made of a cold-stretched plastic film, which facilitates the outer bag layer 5 to expand and contract, and is more convenient to tightly wrap the corresponding product. Therefore, when the polyurethane foam material 4 expands, it can support the entire inner bag layer 6, so that the inner bag layer 6 is wrapped on the product according to the preset configuration. At the same time, the film with stretching and shrinking properties and puncture resistance of the outer bag layer 5 has stretching and shrinking properties and puncture resistance, which plays a shrinking role, wraps the entire product, and improves the effect of the product.

[0086] Example 8

[0087] Since the isocyanate and polyol in the polyurethane foam material 4 generate heat after mixing, and gas is squeezed out during the expansion process, therefore, based on Example 1, this embodiment discloses that the inner bag layer 6 and / or the outer bag layer 5 are provided with exhaust holes.

[0088] Specifically, certain exhaust holes are respectively provided on the inner bag layer 6 and the outer bag layer 5, and the diameter of the exhaust holes is between 1 and 5 mm. The exhaust holes allow the gas generated during the polyurethane foaming process of the inner bag layer 6 and the outer bag layer 5 to be discharged, which can dissipate heat on the one hand and prevent the entire packaging bag 7 from being squeezed and broken on the other hand.

[0089] Example 9

[0090] See also Figures 6-7 In order to further illustrate the application of the cushioning packaging structure of the utility model in the product packaging process, this embodiment discloses an electrical appliance packaging method based on the disclosure of the cushioning packaging structure, including the following steps:

[0091] A cushioning packaging structure is adopted, the outer layer 1 is constructed as an outer bag layer 5, the inner layer 2 is constructed as an inner bag layer 6, the inner bag layer 6 is inserted into the outer bag layer 5, the inner bag layer 6 and the outer bag layer 5 constitute a packaging bag 7, the core layer 3 is filled in the position between the outer bag layer 5 and the inner bag layer 6, the core layer 3 includes a polyurethane foam material 4, and the polyurethane foam material 4 is composed of isocyanate and polyol.

[0092] Put the packaging bag 7 onto the electrical appliance to be packaged.

[0093] The outer bag layer 5 is pressed to make the isocyanate and polyol in the polyurethane foam material 4 on the core layer 3 flow out and mix together, and the polyurethane foam material 4 expands and fills the position between the outer bag layer 5 and the inner bag layer 6 to achieve a cushioning effect.

[0094] Specifically, the packaging bag 7 is opened by a robot arm, and the packaging bag 7 is pulled open and put on the electrical appliance from top to bottom, so that the packaging bag 7 covers the electrical appliance. At this time, by pressing the packaging bag 7, the isocyanate and polyol in the polyurethane foam 4 can flow out and mix together to produce a buffer effect.

[0095] Furthermore, the electrical appliance is a refrigerator.

[0096] The above-mentioned electrical appliance packaging method puts the packaging bag 7 into the electrical appliance, and generates a reaction force on the surface of the electrical appliance by pressing the outer bag layer 5 of the packaging bag 7, so that the isocyanate and polyol in the core layer 3 of the polyurethane foam 4 between the outer bag layer 5 and the inner bag layer 6 are mixed to produce an expansion effect, and then a buffering effect is produced, thereby overcoming the problem of cumbersome packaging operations caused by the traditional need to separately package the packaging side strips on the electrical appliance, and before the packaging bag 7 is expanded, it occupies less space, reducing the storage space and facilitating the movement of the packaging bag 7.

[0097] Example 10

[0098] See also Figures 6-7 In order to realize intelligent production in one step, it is necessary to realize assembly line 13 packaging on the production line 13. Therefore, on the basis of Example 9, a production line 13 is also used, and a rotating packaging base 11 is set on the production line 13;

[0099] A pressing plate 12 is provided on the peripheral side of the packaging base 11;

[0100] The electrical appliance to be packaged is placed on the packaging base 11. After the electrical appliance is put into the packaging bag 7, the pressing plate 12 is driven to approach the packaging bag 7 until the pressing plate 12 presses the outer bag layer 5.

[0101] After one pressing is completed, the packaging base 11 is rotated to make the pressing plate 12 press other positions of the packaging bag 7 to expand the entire packaging bag 7 .

[0102] Specifically, a packaging base 11 is provided on a mobile production line 13, and the packaging base 11 generates a rotation effect through a motor, and the electrical appliance is placed on the packaging base 11. Since the pressing plate 12 is provided on the peripheral side of the packaging base 11, as long as the pressing plate 12 is close to the packaging base 11, the packaging bag on the product on the packaging base 11 can be pressed, so that the isocyanate in the polyurethane foam material 4 in the core layer 3 between the outer bag layer 5 and the inner bag layer 6 is mixed with the polyol to produce an expansion effect, and then a buffer effect is produced.

[0103] After one side is pressed and expanded, the packaging base 11 is rotated 90 degrees, so that the pressing plate 12 presses other positions of the packaging bag 7, and an automated operation is implemented to make the entire packaging bag 7 produce a cushioning effect.

[0104] For example, see Figures 6-7 , perform the following packaging steps:

[0105] S1. Place the refrigerator on the packaging base 11

[0106] S2. Put on the cushioning packaging bag 7, and the robot pulls the opening of the packaging bag 7, pulls the packaging bag 7 open and puts it on the refrigerator from top to bottom; the bag opening is enlarged by the robot to make it larger than the packaging base 11, and the robot withdraws, and the bag opening of the packaging bag 7 shrinks and wraps the packaging base 11.

[0107] S3. The assembly line 13 is provided with front and rear clamping plates, which are retracted to squeeze the front and rear sides of the refrigerator.

[0108] The drain line is equipped with a steering device that drives the base to rotate. When the base rotates, the refrigerator turns 90 degrees and repeats the above process, so that the four sides of the refrigerator form an effective protection

[0109] S4. A pressure plate 12 is provided at the tail end and top of the assembly line 13, and the above extrusion process is repeated to form a top protection;

[0110] Before squeezing the top, first apply the strapping tape, and the polyurethane foam material 4 will form a groove at the strapping tape position to clamp the strapping tape, so as to prevent the strapping tape from strangling the polyurethane foam material 4 and reduce the risk of the strapping tape slipping.

[0111] Packing and storage.

[0112] The cushioning packaging bag 7 of the present application has a simple structure, and various cushioning materials required for the outer layer 1 of the integrated refrigerator can be arbitrarily set up with discontinuous cushioning spaces according to the places where the products are easily bumped during transportation, and foamed into cushioning foam to form protection. It can effectively reduce the amount of foam, increase the effective protection area, and avoid the problem of foaming of off-site molds, turnover, and storage occupying large space.

[0113] The present application discloses a cushioning packaging bag 7, comprising an outer layer 1, an inner layer 2, and a bubble layer arranged between the bag body of the inner layer 2 and the bag body of the outer layer 1. The outer layer 1 is a plastic bag of the whole machine directly put on the surface of the refrigerator; the bubble layer between the inner and outer layers 1, in a suitable gap, each two adjacent bubbles are filled with foaming materials A and foaming materials B required for polyurethane foaming; after the bubbles are compressed and ruptured, AB contacts and foaming reaction occurs. The inner layer 2 includes N AB bubble units according to a preset shape to form a specific cushioning material. The cushioning packaging bag 7 of the present application has a simple structure and integrates various cushioning materials required for the outer layer 1 of the refrigerator, avoiding the problem of off-site mold foaming, turnover, and storage occupying a large space.

[0114] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0115] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0116] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0117] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0118] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A cushioning packaging structure, characterized in that: include: Outer layer (1), an inner layer (2), the inner layer (2) being opposite to the outer layer (1), and a core layer (3) being provided between the inner layer (2) and the outer layer (1), The core layer (3) is a polyurethane foam material (4), and the polyurethane foam material (4) includes material A (41) and material B (42). When the core layer (3) is pressed, the material A (41) and material B (42) in the polyurethane foam material (4) are mixed and expanded and supported at a position between the inner layer (2) and the outer layer (1).

2. The cushioning packaging structure according to claim 1, characterized in that: The outer layer (1) is constructed as an outer bag layer (5), the inner layer (2) is constructed as an inner bag layer (6), the inner bag layer (6) is inserted into the outer bag layer (5), the inner bag layer (6) and the outer bag layer (5) form a packaging bag (7), and the core layer (3) is filled in the position between the outer bag layer (5) and the inner bag layer (6).

3. The cushioning packaging structure according to claim 2, characterized in that: The outer side surface of the outer bag layer (5) faces outwards, the inner side surface of the outer bag layer (5) faces the outer side surface of the inner bag layer (6), and the inner side surface of the inner bag layer (6) is used to wrap the product; The core layer (3) is filled in a designated position between the outer bag layer (5) and the inner bag layer (6), and the designated position is a collision-prone position.

4. The cushioning packaging structure according to claim 3, characterized in that: The outer bag layer (5) and the inner bag layer (6) are both plastic bags, and the outer side surface of the outer bag layer (5) is a plastic bubble (14) surface.

5. The cushioning packaging structure according to claim 2, characterized in that: The material A (41) is isocyanate, and the material B (42) is polyol.

6. The cushioning packaging structure according to claim 2, characterized in that: The outer side surface of the inner bag layer (6) is provided with an embedding groove (8), and the core layer (3) is embedded in the embedding groove (8) so as to be positioned on the outer side surface of the inner bag layer (6).

7. The cushioning packaging structure according to claim 5, characterized in that: The core layer (3) is also provided with a plurality of micropores (9), the isocyanate and the polyol are respectively filled in the micropores (9), and the isocyanate and the polyol are arranged adjacent to each other.

8. The cushioning packaging structure according to claim 2, characterized in that: The inner bag layer (6) is constructed in a shape that is adapted to the product.

9. The cushioning packaging structure according to claim 2, characterized in that: The outer bag layer (5) is a cold-stretched plastic film layer.

10. The cushioning packaging structure according to claim 2, characterized in that: The inner bag layer (6) and / or the outer bag layer (5) are provided with exhaust holes.

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