Packaging box with automatic filling function and manufacturing method

Abstract

The invention relates to a packaging box with an automatic filling function and a manufacturing method.The packaging box comprises a box body, a first foaming agent container, a first plastic bag film, a second foaming agent container and a second plastic bag film are arranged on one side wall in the box body, and a first switch is arranged at the first nozzle end of the first foaming agent container; after the first switch is turned on, the first plastic bag film is communicated with the first nozzle end through a first pipe; a second switch is arranged at a second nozzle end of the second foaming agent container; after the second switch is turned on, the second plastic bag film is communicated with the second nozzle end through a second pipe; and the first plastic bag film and the second plastic bag film are arranged up and down at intervals. Upper and lower groups of foaming agent containers and plastic bag films are designed in the box body, so that the plastic bag films can be automatically filled, the use is very convenient, and the packaging efficiency is high. The upper side and the lower side of an object can be wrapped, the compression resistance and shock absorption performance in logistics conveying are improved, and the device is suitable for objects of different structure types. The packaging box is not only suitable for companies, but also suitable for families.

Description

Technical Field

[0001] The present invention relates to the technical field of logistics packaging, and in particular to a packaging box with an automatic filling function and a manufacturing method thereof. Background Art

[0002] The common packaging methods to prevent damage to items during express delivery are: wrapping multiple layers of bubble pads or foam on the surface of the items, or filling the gaps in the packaging box with cushioning materials to prevent the items from shaking and reduce collisions and vibrations during transportation, but the fit with the items is poor. The invention patent with application publication number CN110893926A discloses a packaging method for special-shaped products, which mainly includes the following steps: according to the outer dimensions of the product to be packaged, determine the size of the carton set outside the product to be packaged, open the carton and lay a plastic bag film on the bottom of the carton; place the polyurethane foam material on the plastic bag film, and wrap the polyurethane foam material with the plastic bag film on all sides; place the product to be packaged on the plastic bag film at the bottom of the carton, and the polyurethane foam material can be foamed and formed according to the bottom structure of the product to be packaged to form bottom foam; similar to the above process, top foam can be formed. Using polyurethane foam material can indeed cushion the items, but this method is cumbersome to operate and inefficient: the plastic bag film needs to be cut to the appropriate size, and the amount of polyurethane foam material used each time also depends on experience. After spraying the polyurethane foam material on the plastic bag film, it is necessary to quickly fold the four sides to wrap the polyurethane foam material. In addition, this method is also applicable to limited scenarios. For example, for families or companies that occasionally have special express packaging needs, they generally do not buy this polyurethane foam agent as a backup. Summary of the invention

[0003] The purpose of the present invention is to provide a packaging box with an automatic filling function to solve the problems of inconvenient operation and low efficiency in the existing method of using polyurethane foam materials as a buffer. A method for making the packaging box is also provided.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A packaging box with an automatic filling function comprises a box body, wherein a first foaming agent container, a first plastic bag film, a second foaming agent container, and a second plastic bag film are arranged on one side wall of the box body; a first switch is arranged at a first nozzle end of the first foaming agent container, the first plastic bag film is connected to a first tube, and after the first switch is turned on, the first plastic bag film is connected to the first nozzle end through the first tube; a second switch is arranged at a second nozzle end of the second foaming agent container, the second plastic bag film is connected to a second tube, and after the second switch is turned on, the second plastic bag film is connected to the second nozzle end through the second tube; the first plastic bag film and the second plastic bag film are arranged with an upper and lower interval.

[0006] Furthermore, the first foaming agent container and the second foaming agent container are glued to an inner side wall of the box body.

[0007] Furthermore, the first foaming agent container and the second foaming agent container are rectangular containers, and their length directions are arranged along the horizontal direction.

[0008] Furthermore, the first switch and the second switch are pressing parts, each comprising a pressing portion, a first connecting portion, and a second connecting portion, the first connecting portion is connected to the second connecting portion, the first connecting portion is connected to the corresponding nozzle end, and the second connecting portion is connected to the corresponding first tube or second tube.

[0009] Furthermore, the pressing portion of the pressing member is a pressing strip, and a notch is provided on the pressing strip for an operator to press by hand.

[0010] Furthermore, the first plastic bag film and the second plastic bag film are both in a folded state when not filled.

[0011] Furthermore, the first foaming agent container is located above the first plastic bag film, and the second foaming agent container is located above the second plastic bag film.

[0012] A method for making a packaging box with an automatic filling function comprises the following steps: S1, turning on a first switch, a first foaming agent container can quickly fill a foaming material into a first plastic bag film, and the first plastic bag film is spread out at the bottom of the box;

[0013] S2, placing the article to be packaged on the first plastic bag film, and partially deforming the first plastic bag film to wrap the bottom of the article;

[0014] S3, turning on the second switch, the second foaming agent container can quickly fill the foaming material into the second plastic bag film, and the second plastic bag film is spread on the top of the box body and is above the article;

[0015] S4. The flap of the packaging box is closed. During the closing process, a partial area of ​​the second plastic bag film is deformed by applying pressure to wrap the upper part of the article.

[0016] Furthermore, in steps S1 and S3, the operator presses the corresponding switch by hand to open the discharge valve of the corresponding foaming agent container.

[0017] Furthermore, the first plastic bag film and the second plastic bag film are both filled with polyurethane foam.

[0018] Beneficial effects of the present invention:

[0019] The method for making a packaging box with an automatic filling function of the present invention is designed with a special foaming agent container adapted to the size of the box body, and a plastic bag film, which are prefabricated in the box body; when it is used for packaging in the later stage, the foaming agent can be easily activated and quickly filled into the plastic bag film to form a foaming foam layer, which is very convenient to use, has few operating steps, saves time, and does not rely on experience (the size of the plastic bag film is adapted to the box body, and a bottle of foaming agent just meets the requirements and is disposable). The foaming agent container and the plastic bag film are provided with two groups, upper and lower, which respectively wrap the upper and lower sides of the article, improve the pressure resistance and shock absorption in logistics transportation, and are suitable for valuables, fragile items, etc. The polyurethane foam layer is compressed when it is not dry, so it can imitate the shape of the article, and the wrapping is better. It is suitable for articles of different structural types and can also wrap special-shaped parts well. This packaging box is not only suitable for companies, but also for families. It can be purchased in advance for backup and is very convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the principle of the bottom foam layer forming process in a method for making a packaging box with an automatic filling function of the present invention;

[0021] Figure 2 is a three-dimensional diagram of a packaging box embodiment 1 with an automatic filling function of the present invention;

[0022] Figure 3 It is a partial view of the interior of the packaging box with automatic filling function of the present invention;

[0023] Figure 4 is a schematic diagram showing the folding method of the first plastic bag film;

[0024] Figure 5 is a partial view of the interior of a packaging box embodiment 1 with an automatic filling function of the present invention;

[0025] Figure 6 1 is a partial view of the exterior of the packaging box embodiment 1 with automatic filling function of the present invention (the first switch is in state 1);

[0026] Figure 7 This is a partial view of the exterior of the packaging box embodiment 1 with automatic filling function of the present invention (the first switch is in state 2)

[0027] Figure 8 is a perspective view of the first switch.

[0028] The names corresponding to the marks in the figure are:

[0029] 11. Box body; 12. Rocker cover; 13. Left box plate; 14. Rear box plate; 141. Through hole; 15. Bottom box plate; 21. First foaming agent container; 22. Second foaming agent container; 31. First plastic bag film; 32. Second plastic bag film; 41. First tube; 42. Second tube; 51. First switch; 511. First connecting portion; 512. Second connecting portion; 513. Pressing portion; 514. Notch; 52. Second switch; 6. Articles. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] The packaging box involved in the present invention comprises a box body 11 and swing covers 12 on the top thereof located at four sides. The box body 11 itself is a prior art, and a common packaging box is made of corrugated paper.

[0032] like Figure 1-Figure 4 As shown, a method for making a packaging box with an automatic filling function comprises the following steps:

[0033] S1. Turn on the first switch 51. The first foaming agent container 21 can quickly fill the foaming material into the first plastic bag film 31. The first plastic bag film 31 can be quickly spread at the bottom of the box body 11 due to the influence of the filling material.

[0034] The foaming agent container is preferably a container filled with a polyurethane foaming agent. The full name of the polyurethane foaming agent is a single-component polyurethane foam sealant, commonly known as a foaming agent, foaming glue, or PU sealant. It is a product of the cross-combination of aerosol technology and polyurethane foam technology. It is a special polyurethane product that contains components such as a polyurethane prepolymer, a foaming agent, and a catalyst in a pressure-resistant aerosol can. When the material is sprayed out of the container, the foamy polyurethane material will expand rapidly and react with the moisture in the air to form a foam.

[0035] S2, placing the item 6 to be packaged on the first plastic bag film 31, and partially deforming the first plastic bag film 31 to wrap the bottom of the item 6. Before the polyurethane foam is dry, the item 6 is placed and pressed on it, so that a contour groove corresponding to the shape of the item 6 can be obtained. After the polyurethane foam is dry, the item 6 can be better supported to prevent it from shaking. The item 6 to be packaged can be a valuable item or a fragile item such as porcelain, etc., which is not limited in this embodiment.

[0036] S3, turning on the second switch 52, the second foaming agent container 22 can quickly fill the foaming material into the second plastic bag film 32, and the second plastic bag film 32 is spread on the top of the box body 11 and is above the article 6.

[0037] S4, closing the flap 12 of the packaging box. During the closing process, a partial area of ​​the second plastic bag film 32 is deformed by applying pressure to wrap the upper part of the article 6.

[0038] The plastic bag film can be made of PVC or PE film, made into a closed structure, leaving a feed hole, and connected to the foaming agent container through the corresponding material pipe. When the first plastic film and the first plastic film are not unfolded, their width is slightly smaller than the width of the carton, and their length after unfolding is slightly smaller than the length of the carton. In steps S1 and S3, the operator presses the corresponding switch by hand to open the discharge valve of the corresponding foaming agent container. There are mainly two types of foaming agent containers, tubular and gun types. The gun type is more complicated. In this embodiment, a tubular foaming agent is used. When in use, the discharge valve can be opened by pressing it by hand, and the polyurethane foaming agent enters the corresponding plastic film.

[0039] The above is the core concept of the present invention. The packaging box structure for implementing the above method is not unique. The following example illustrates a feasible packaging box structure that can quickly prepare a cushion and wrap the upper and lower sides of the item to be packaged 6 to achieve the effect of pressure resistance and shock absorption.

[0040] Embodiment 1:

[0041] like Figure 1-Figure 4 As shown, a packaging box with an automatic filling function includes a rectangular box body 11 and swing covers 12 on the top and four sides. The box body 11 itself is a prior art, and common packaging boxes are made of corrugated paper.

[0042] A first foaming agent container 21, a first plastic bag film 31, a second foaming agent container 22, and a second plastic bag film 32 are provided on one side wall of the box body 11. The first foaming agent container 21 is located above the first plastic bag film 31, and the second foaming agent container 22 is located above the second plastic bag film 32. In later use, the first plastic bag film 31 corresponds to the bottom of the item to be packaged 6; the second plastic bag film 32 corresponds to the upper part of the item to be packaged 6, so the first plastic bag film 31 and the second plastic bag film 32 are arranged at intervals from top to bottom.

[0043] In this embodiment, the first foaming agent container 21, the first plastic bag film 31, the second foaming agent container 22, and the second plastic bag film 32 are all arranged on the side wall of the same side. In other embodiments, the first foaming agent container 21 and the first plastic bag film 31 can also be arranged on the left side wall of the box body 11, and the second foaming agent container 22 and the second plastic bag film 32 can be arranged on the right side wall of the box body 11.

[0044] The first foaming agent container 21 and the second foaming agent container 22 are glued to a side wall of the box body 11. For the convenience of fixing, the first foaming agent container 21 and the second foaming agent container 22 are rectangular containers, and their length direction is arranged along the horizontal direction. The outer shape is rectangular, so the area of ​​one side contacting the inner wall of the box body 11 is large, which is convenient for fixing. Compared with the existing cylindrical foaming agent container, only the outer shape has been changed, and the composition of the foaming agent and the opening principle of the discharge valve have not changed; the existing patent CN207138137U also discloses a valve structure that can be opened by pressing. When the foaming agent container is produced, one side thereof can be designed as a glue layer, and a release paper is adhered to the outside, similar to a double-sided tape. When fixing the foaming agent container to the inner wall of the box body 11, the release paper is torn off, and the foaming agent container can be glued to the inner wall of the box body 11.

[0045] A first switch 51 is provided at the first nozzle end of the first foaming agent container 21, and the first plastic bag film 31 is connected to the first tube 41. After the first switch 51 is turned on, the first plastic bag film 31 is connected to the first nozzle end through the first tube 41. A second switch 52 is provided at the second nozzle end of the second foaming agent container 22, and the second plastic bag film 32 is connected to the second tube 42. After the second switch 52 is turned on, the second plastic bag film 32 is connected to the second nozzle end through the second tube 42.

[0046] The first switch 51 and the second switch 52 are pressing parts, both of which include a pressing part 513, a first connecting part 511, and a second connecting part 512. The first connecting part 511 is connected to the second connecting part 512 and is integrally formed with the pressing part 513. The pressing part 513 is a solid structure to improve strength. The first connecting part 511 is threadedly connected to the corresponding nozzle end. The nozzle end can be understood as the valve stem of the discharge valve. The valve stem is hollow. When the valve stem is pressed, the valve opens and the material can be discharged. The second connecting part 512 is connected to the corresponding first tube 41 or the second tube 42. The first tube 41 or the second tube 42 adopts a hose and can be made together with a plastic bag film as a component. Then, during assembly, the first tube 41 or the second tube 42 is connected to the second connecting part 512 of the corresponding first switch 51 or the second switch 52. The second connecting part 512 adopts a tower-shaped joint for the first tube 41 or the second tube 42 to be mounted.

[0047] The pressing portion 513 of the pressing member is a pressing strip, on which a notch 514 is provided. The notch 514 is an arc-shaped groove for the operator to press with his hand.

[0048] The first plastic bag film 31 and the second plastic bag film 32 are both in a folded state when not filled. Figure 4As shown, the plastic bag film can be folded into a long strip by folding multiple sections in sequence. After folding, it can be temporarily fixed to the inner wall of the box body 11 with tape. When the foaming agent needs to be filled, the tape can be torn off from the inner wall of the box body without affecting the normal spreading of the plastic bag film. In fact, the first plastic bag film 31 at the bottom is not folded and does not affect the final use.

[0049] Embodiment 2:

[0050] like Figure 5-Figure 8 As shown, the main difference from Example 1 is the position of the first and second foaming agent containers, as well as the structure and position of the first switch and the second switch, so that the first and second foaming agent containers are opened by pressing from the outside of the box. Take the first foaming agent container 21, the first plastic bag film 31, and the first switch 51 on the lower side as an example:

[0051] For ease of description, several side walls of the box body are defined as the left box board 13, the bottom box board 15, and the rear box board 14. The first foaming agent container 21 is fixed to the inner side of the left box board 13. One end of the discharge port of the first foaming agent container 21 is close to the rear box board 14 of the box body. The rear box board 14 is provided with a through hole 141. A part of the first switch 51 connected to the first foaming agent container 21 can pass through the through hole 141.

[0052] The first switch 51 is a pressing member, including a pressing portion 513, a first connecting portion 511, and a second connecting portion 512. The first connecting portion 511 is connected to the second connecting portion 512 and is integrally formed with the pressing portion 513. The pressing portion 513 is a solid strip structure, with a notch 514 provided on the outside, which is a circular groove, which is convenient for pressing when in use. The first connecting portion 511 and the second connecting portion 512 are connected hollow structures. The second connecting portion 512 is perpendicular to the first connecting portion 511, similar to a three-way pipe. The first connecting portion 511 is threadedly connected to the corresponding nozzle end. The nozzle end can be understood as the valve stem of the discharge valve. The valve stem is hollow. When the valve stem is pressed, the valve opens and the material can be discharged. The second connecting portion 512 is connected to the first tube 41. The first tube 41 is a hose, which can be made together with the plastic bag film as a component, and then the first tube 41 is connected to the corresponding second connecting portion 512 of the first switch 51 during assembly. The second connection portion 512 is a tower-shaped joint for the first tube 41 to be mounted on.

[0053] In this embodiment, the pressing portion 513 is located outside the box. After the box is manufactured, the pressing portion 513 is located outside the box. Figure 6In the vertical state shown, the through hole 141 is perpendicular to the box body, and the box body is blocked by the rear box plate 14. At this time, the pressing part 513 cannot be easily pressed inward, which achieves the effect of preventing accidental touch. When the user needs to open the foaming agent container, the pressing part 513 is rotated 90 degrees. At this time, the pressing part 513 is aligned with the through hole 141, and the rear box plate 14 is no longer blocked. The pressing part 513 can be pressed inward to trigger the discharge valve of the first foaming agent container 21.

[0054] The method for making a packaging box with an automatic filling function of the present invention is designed with a special foaming agent container adapted to the size of the box body, and a plastic bag film, which are prefabricated in the box body; when it is used for packaging in the later stage, the foaming agent can be easily activated and quickly filled into the plastic bag film to form a foaming foam layer, which is very convenient to use, has few operating steps, saves time, and does not rely on experience (the size of the plastic bag film is adapted to the box body, and a bottle of foaming agent just meets the requirements and is disposable). The foaming agent container and the plastic bag film are provided with two groups, upper and lower, which respectively wrap the upper and lower sides of the article, improve the pressure resistance and shock absorption in logistics transportation, and are suitable for valuables, fragile items, etc. The polyurethane foam layer is compressed when it is not dry, so it can imitate the shape of the article, and the wrapping is better. It is suitable for articles of different structural types and can also wrap special-shaped parts well. This packaging box is not only suitable for companies, but also for families. It can be purchased in advance for backup and is very convenient to use.

[0055] The "connection" and "coupling" mentioned in the present invention include direct and indirect connections (couplings) unless otherwise specified. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0056] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0057] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that are the same or similar to those of the present application fall within the protection scope of the present invention.

Claims

1. A packaging box with automatic filling function, characterized in that: The invention comprises a box body, wherein a first foaming agent container, a first plastic bag film, a second foaming agent container and a second plastic bag film are arranged on one side wall of the box body; a first switch is arranged on the first nozzle end of the first foaming agent container, the first plastic bag film is connected to a first tube, and after the first switch is turned on, the first plastic bag film is communicated with the first nozzle end through the first tube; a second switch is arranged on the second nozzle end of the second foaming agent container, the second plastic bag film is connected to a second tube, and after the second switch is turned on, the second plastic bag film is communicated with the second nozzle end through the second tube; the first plastic bag film and the second plastic bag film are arranged with an interval up and down.

2. The packaging box with automatic filling function according to claim 1, characterized in that: The first foaming agent container and the second foaming agent container are glued to one side wall of the box body.

3. The packaging box with automatic filling function according to claim 2, characterized in that: The first foaming agent container and the second foaming agent container are rectangular containers, and their length directions are arranged along the horizontal direction.

4. The packaging box with automatic filling function according to claim 1, characterized in that: The first switch and the second switch are pressing parts, each comprising a pressing portion, a first connecting portion, and a second connecting portion. The first connecting portion is connected to the second connecting portion, the first connecting portion is connected to the corresponding nozzle end, and the second connecting portion is connected to the corresponding first tube or second tube.

5. The packaging box with automatic filling function according to claim 4, characterized in that: The pressing part of the pressing piece is a pressing strip, and a notch is provided on the pressing strip for the operator to press with his hand.

6. The packaging box with automatic filling function according to any one of claims 1 to 5, characterized in that: The first plastic bag film and the second plastic bag film are both in a folded state when not filled.

7. The packaging box with automatic filling function according to claim 6, characterized in that: The first foaming agent container is located above the first plastic bag film, and the second foaming agent container is located above the second plastic bag film.

8. A method for making a packaging box with an automatic filling function, characterized in that: The following steps are involved: S1. Turn on the first switch, the first foaming agent container can quickly fill the foaming material into the first plastic bag film, and the first plastic bag film is spread out at the bottom of the box; S2, placing the article to be packaged on the first plastic bag film, and partially deforming the first plastic bag film to wrap the bottom of the article; S3, turning on the second switch, the second foaming agent container can quickly fill the foaming material into the second plastic bag film, and the second plastic bag film is spread on the top of the box body and is above the article; S4. The flap of the packaging box is closed. During the closing process, a partial area of ​​the second plastic bag film is deformed by applying pressure to wrap the upper part of the article.

9. The method for making a packaging box with automatic filling function according to claim 8, characterized in that: In steps S1 and S3, the operator presses the corresponding switch by hand to open the discharge valve of the corresponding foaming agent container.

10. The method for making a packaging box with automatic filling function according to claim 8, characterized in that: The first plastic bag film and the second plastic bag film are both filled with polyurethane foam.

Images