Packaging boxes, packaging materials, tooling and box making methods

Abstract

The present invention provides a packaging box, packaging materials, tooling and a boxing method, wherein the box body comprises a bottom plate, and four groups of side plates connected around the bottom plate; the box cover comprises side cover plates correspondingly connected to the tops of two groups of side plates, and an upper cover plate and a middle cover plate correspondingly connected to the tops of the other two groups of side plates, the upper cover plate and the middle cover plate are pressed on the side cover plates in sequence from top to bottom, and are locked by a locking structure, and a box opening breaking line is arranged on the upper cover plate. The present invention adopts the packaging box, which has a novel structure, is simple and quick to unpack, and can unfold the entire packaging box to facilitate the removal of the items inside, and at the same time, can realize the rapid boxing of packaging materials in the tooling, improve the boxing efficiency, greatly reduce the packaging time, and have low cost.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging boxes, and in particular to a packaging box, packaging materials, tooling and a box-making method. Background Art

[0002] During the use of the packaging box, the operator often needs to fold the packaging materials for the packaging box according to the indentation, and then seal it with tape, which requires more operating steps and additional packaging materials to complete, thus affecting production efficiency and cost. In addition, in the unpacking process of this type of packaging box, it is also necessary to use a knife to unpack, which not only poses a safety risk, but also has low unpacking efficiency. Therefore, in order to solve the problems existing in the prior art and meet actual production needs, the current application date is 2018.07.12, the publication number is CN208429340U, and the invention name is "Locking mechanism and tape-free safety packaging box". The Chinese patent discloses a packaging box structure that can lock the box body through a locking mechanism, does not need to use tape to seal the box, and is easy to unpack. However, the packaging box has the following problems during actual use:

[0003] 1. If the entire packaging box needs to be unfolded to conveniently take out the items, the packaging box cover and the lock structure on the bottom plate need to be opened at the same time to take out the items in the box, which is time-consuming and laborious;

[0004] 2. Opening a set of locking structures or damaging the opening breaking line can only open one of the box cover or the bottom plate, but cannot unfold the entire packaging box, which makes it easy for the items in the box to get stuck when taking them out.

[0005] Therefore, our company carried out corresponding research and development. Summary of the invention

[0006] The main purpose of the present invention is to solve the problems existing in the prior art and to provide a packaging box, packaging material, tooling and boxing method with a novel structure, simple and quick unpacking operation, and the ability to unfold the entire packaging box to facilitate the removal of items therein. At the same time, the packaging materials can be quickly boxed in the tooling, the boxing efficiency can be improved, the packaging time can be greatly reduced, and the cost is low.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is: a packaging box, wherein the packaging box comprises a box body and a box cover, wherein:

[0008] The box body comprises a bottom plate and four sets of side plates surrounding and connected to the bottom plate;

[0009] The box cover includes side cover plates correspondingly connected to the tops of two groups of side plates, and an upper cover plate and a middle cover plate correspondingly connected to the tops of the other two groups of side plates. The upper cover plate and the middle cover plate are pressed onto the side cover plates in sequence from top to bottom and locked by a locking structure. A box opening destruction line is set on the upper cover plate.

[0010] Furthermore, at least two corresponding groups of the side panels are provided with corresponding connecting folding wings, and the folding wings are against the adjacent side panels. The design of the folding wings further ensures the airtightness of the connection between the adjacent side panels.

[0011] Furthermore, the locking structure includes an insertion tongue connected to the upper cover plate, and the insertion tongue passes through the middle cover plate and the side cover plate in sequence. The insertion tongue passes through the middle cover plate and the side cover plate in sequence, thereby realizing the locking of the upper cover plate and the four groups of side plates, ensuring the packing box is formed.

[0012] Furthermore, a first plug hole is provided on the side cover plate, and a second plug hole is provided on the middle cover plate corresponding to the first plug hole. The plug tongue cooperates with each other and passes through the second plug hole and the first plug hole in sequence. The second plug hole and the first plug hole allow the plug tongue to pass through the middle cover plate and the side cover plate smoothly, thereby realizing locking among the upper cover plate, the middle cover plate and the side cover plate.

[0013] Furthermore, the upper cover plate and the middle cover plate are bonded together by an adhesive strip, and the adhesive strip further improves the connection reliability between the upper cover plate and the middle cover plate to ensure the locking quality of the packaging box.

[0014] Furthermore, the unpacking destruction line includes a starting line located on the upper cover plate, and tear guide lines extending obliquely from the two ends of the starting line to the two edges of the upper cover plate close to the side cover plate. Through the cooperation of the starting line and the tear guide line, there is no need to use a knife during the unpacking process of the packaging box. Only the upper cover plate needs to be disconnected along the starting line and the tear guide line to quickly unpack the box, which improves the unpacking efficiency and reduces the safety risks of the existing unpacking with knives. At the same time, the entire packaging box can be unfolded, which facilitates the removal of items in the packaging box.

[0015] Furthermore, a cut corner is formed on the side cover plate near the upper cover plate. The cut corner design can reduce the resistance of the side cover plate to the upper cover plate at the starting line near the middle cover plate when the packaging box is unpacked, making it easier to be pressed down, thereby ensuring smooth unpacking and saving time and effort.

[0016] Packaging material, wherein the packaging material is the base material for forming the above-mentioned packaging box.

[0017] Furthermore, the packaging material includes a bottom plate, side plates correspondingly connected to the bottom plate in pairs, side cover plates correspondingly connected to two groups of side plates, and an upper cover plate and a middle cover plate correspondingly connected to the other two groups of side plates, and an opening destruction line is set on the upper cover plate.

[0018] Furthermore, at least two corresponding groups of the side panels also have correspondingly connected folding wings.

[0019] Furthermore, a first plug hole is provided on the side cover plate, a tongue is provided on the side of the upper cover plate away from the side plate, a second plug hole is provided on the middle cover plate, and the structures of the first plug hole and the second plug hole are matched with the structure of the tongue.

[0020] Furthermore, an adhesive strip is also provided on the middle cover plate.

[0021] Furthermore, a release film is provided on the adhesive strip, and by tearing off the release film, the upper cover plate can be adhered and pressed onto the middle cover plate, further ensuring reliable locking of the packaging box.

[0022] Furthermore, the adhesive strip is located on a side of the middle cover plate away from the side plate and is adjacent to the second insertion hole.

[0023] Furthermore, the box opening destruction line includes a starting line located on the upper cover plate, and tear guide lines extending obliquely from both ends of the starting line to the upper cover plate perpendicular to the two side edges of the side plates.

[0024] Furthermore, the corner on the side cover away from the insertion hole is cut into a cut corner.

[0025] Furthermore, pressure lines are provided at the joints between the bottom plate and the side plate, the joints between the side plate and the folding wings, the joints between the side plate and the side cover plate, the joints between the side plate and the upper cover plate and the middle cover plate, and the joints between the upper cover plate and the plug tongue.

[0026] Furthermore, an indentation is formed along the back side of the packaging material where the pressure line is arranged, and the indentation can facilitate the connection of the packaging material and the bending between two adjacent plates to realize the rapid box formation of the packaging box.

[0027] Tooling, wherein the tooling is the tooling for packaging the above-mentioned packaging materials into boxes.

[0028] Furthermore, the tooling includes a rectangular box-forming cavity formed by at least four groups of limiting plates in sequence, and two pairs of guide ear groups connected to the corresponding limiting plates, the two pairs of guide ear groups are arranged correspondingly, and a folding-wing lifting channel is formed between each pair of guide ear groups. The tooling is placed on a box-forming station, and the rectangular box-forming cavity, the guide ear groups and the folding-wing lifting channel cooperate to achieve rapid box-forming of packaging materials in the tooling, thereby improving the box-forming efficiency, and the overall structural design of the tooling is simple and practical, which greatly reduces the packaging time of items in the packaging box and is low in cost.

[0029] Furthermore, there is a height difference between the adjacent side walls of the rectangular box cavity. The side walls of the rectangular box cavity are designed to have a height difference structure, which can not only make the side walls of different heights serve as a reference for the folding sequence during the packaging material box forming process, but also facilitate the overall smooth pressing of the packaging material during the packaging material box forming process, reduce the requirements for the packaging material processing quality, thereby effectively simplifying the production process and saving production costs.

[0030] Furthermore, the two pairs of guide ear groups are correspondingly connected to the two ends of the limiting plate.

[0031] Furthermore, the two pairs of guide ear groups extend out of the upper surface of the limiting plate.

[0032] Furthermore, the guide ear group includes two groups of guide ears arranged correspondingly, and a folding wing lifting channel is formed between the corresponding side walls of the two groups of guide ears. The folding wing lifting channel makes it possible to simultaneously lift the folding wings in the packaging material when the tooling assists the packaging material into boxes, so as to avoid the existing problem of manually gathering the folding wings, making the boxing operation difficult, and having low assembly efficiency.

[0033] Furthermore, the folding wing lifting channel is in the shape of an inverted pyramid with a larger upper part and a smaller lower part. The inverted pyramid-shaped folding wing lifting channel structure can guide the folding wings in the packaging material to gradually stand up when the packaging material is boxed in the tooling. The structural design here is ingenious.

[0034] Furthermore, a return channel is extended from the lower part of the folding wing lifting channel, and the return channel is set as a rectangular channel. Through the return channel, the position of the second side panel of the packaging material can be corrected so that it is centered relative to the rectangular box cavity, which is convenient for the side panels one and two of the packaging material to smoothly enter the rectangular box cavity at a later time. In the process of the side panel two moving downward, the folded folded wings on it can be squeezed for a period of time to prevent it from recovering, thereby ensuring that the packaging material is smoothly boxed.

[0035] A method for packing, wherein the method for packing using the above-mentioned packaging material is:

[0036] S1. Place the packaging materials on the tooling;

[0037] S2, applying force to the bottom plate in the packaging material, so that it drives the four sets of side plates to bend at the joints and enter the inner cavity of the tooling to form a box body;

[0038] S3, press and fold the two sets of side cover plates inwards;

[0039] S4. Press the middle cover plate onto the side cover plate;

[0040] S5. The upper cover plate is pressed onto the middle cover plate, and the box cover is locked by the locking structure.

[0041] Furthermore, in the above step S1, the bottom plate in the packaging material is located above the rectangular box cavity in the tooling, and the side panels with folding wings are respectively located in the folding wing lifting channels of each pair of guide ear groups in the tooling. This operation ensures that after the packaging material is pressed, the bottom plate and the four groups of side panels can move smoothly downward along the rectangular box cavity.

[0042] The method simplifies the whole boxing operation of the packaging material, making the manual operation simple. The packaging material can be placed on the tooling and directly pressed, and the packaging material can be automatically gathered and formed according to the indentation with the assistance of the rectangular box-forming cavity in the tooling. At the same time, the folding wings on the packaging material are gradually lifted up and bent under the action of the folding wing lifting channel. Compared with the prior art, the method avoids the problem of first gathering the packaging material according to the indentation and then lifting the folding wings by additionally setting up a corresponding folding wing lifting mechanism, which prolongs the time required for one boxing and is time-consuming and labor-intensive. The method of boxing the packaging material using the above-mentioned tooling does not require manual folding and gathering of the packaging material according to the indentation and then locking the packaging material, so that the packaging box forming efficiency and the box forming qualified rate are high, the production cost is low, and the labor intensity is reduced.

[0043] Furthermore, in the above step S2, the folding wings on the side panels of the packaging material will be gradually lifted up along the folding wing lifting channels in the tooling and bent to rest against the adjacent side panels.

[0044] Furthermore, in the above step S5, before pressing the upper cover plate, the insert tongue is bent at the joint so that the insert tongue passes through the second insert hole and the first insert hole in sequence to lock the packaging box.

[0045] Furthermore, in the above step S5, before pressing the upper cover, the anti-sticking film on the middle cover in the packaging material is torn off first, so that the upper cover is adhered to the middle cover by the adhesive strip to form an auxiliary locking structure of the packaging box.

[0046] The invention discloses a method for unpacking a packaging box, wherein the method for unpacking a packaging box comprises: breaking the upper cover into two parts along the unpacking breaking line, wherein one part is connected to the middle cover and the other part is still connected to the side plate, and at this time, the whole packaging box is unfolded.

[0047] Furthermore, the steps of disconnecting the upper cover plate along the unpacking damage line are as follows:

[0048] Step 1: Disconnect the upper cover plates on both sides of the opening line along the opening line on the upper cover plate in the packaging box;

[0049] Step 2: From the starting line, hold the upper cover plate on the side connected with the plug tongue, and lift the upper cover plate on this side to make it break along the tearing line. At the same time, the plug tongue is pulled out from the side cover plate to complete the unpacking of the packaging box.

[0050] By adopting the above-mentioned unpacking method, the dot breaking line at the starting line of the upper cover plate is first pressed to break, and then the upper cover plate on the side connected with the plug tongue is lifted up to make it break along the tear guide line. At the same time, the plug tongue is pulled out of the side cover plate, so that the entire packaging box is automatically unfolded, that is, the upper cover plate is separated into two parts along the starting line and the tear guide line, one part is connected to the middle cover plate, and the other part is still connected to the side plate. The connection between the side cover plate and the middle cover plate and the upper cover plate is released because the plug tongue is separated from it. Therefore, after the locking relationship between the upper cover plate and the middle cover plate and the side cover plate is released, each plate automatically unfolds the packaging box as a whole under the action of its restoring force, which is convenient for taking out the items therein, saving time and effort. In addition, this method also makes it unnecessary to use a knife for unpacking as in the prior art, thereby improving the unpacking efficiency and reducing the safety risk problems existing when using a knife.

[0051] Furthermore, in the above step one, after completing the disconnection of the connection between the upper cover plates on both sides of the starting line, you can continue to follow the tear guide lines at both ends of the starting line to release a certain length of the connection between the upper cover plates on both sides of the tear guide line to ensure the smooth disconnection of the upper cover plates on both sides of the tear guide line at a later stage.

[0052] The advantages and positive effects of the present invention are:

[0053] (1) The tongue passes through the middle cover plate and the side cover plate in sequence, thereby locking the upper cover plate and the four sets of side plates, thereby ensuring that the packaging box is formed.

[0054] (2) Through the coordination of the opening line and the tear guide line, it is not necessary to use a knife during the unpacking process. The package can be quickly unpacked by simply cutting the upper cover along the opening line and the tear guide line. This improves the unpacking efficiency and reduces the safety risks of the existing unpacking process using a knife. At the same time, the entire package can be unfolded, making it easier to take out the items in the package.

[0055] (3) The design of the cut corners can reduce the resistance of the upper cover plate on the side of the middle cover plate when the side cover plate is pressed down against the starting line when the packaging box is unpacked, making it easier to press down, thereby ensuring smooth unpacking and saving time and effort.

[0056] (4) The tool is placed on a box-forming station, and the rectangular box-forming cavity, the guide ear group and the folding wing lifting channel cooperate to realize the rapid box-forming of packaging materials in the tool, thereby improving the box-forming efficiency. The overall structural design of the tool is simple and practical, which greatly reduces the packaging time of the packaging box for the items and is low in cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] Figure 1 It is a structural schematic diagram of the packaging box in the present invention.

[0058] Figure 2 It is a schematic structural diagram of the packaging material in the present invention.

[0059] Figure 3 It is a structural schematic diagram of the tooling in the third embodiment of the present invention.

[0060] Figure 4 It is a structural schematic diagram of the tooling in the fourth embodiment of the present invention.

[0061] Figure 5 It is a schematic diagram of the box-forming process of the present invention.

[0062] Figure 6 It is a schematic diagram of the structure of the packaging box of the present invention after unpacking.

[0063] In the figure: packaging box 1, box body 11, bottom plate 111, side plate 112, folding wing 113, box cover 12, side cover plate 121, socket one 1211, corner cut 1212, upper cover plate 122, middle cover plate 123, socket two 1231, locking structure 13, unpacking damage line 14, opening line 141, tear guide line 142, adhesive strip 15, packaging material 2, tooling 3, limiting plate 31, rectangular box cavity 32, guide ear group 33, guide ear 331, folding wing lifting channel 34, return channel 35. DETAILED DESCRIPTION

[0064] In order to better understand the present invention, the present invention is further described below in conjunction with specific embodiments and drawings.

[0065] Embodiment 1

[0066] like Figure 1 As shown, the packaging box 1 includes a box body 11 and a box cover 12, wherein:

[0067] The box body 11 includes a bottom plate 111 and four sets of side plates 112 surrounding and connected to the bottom plate 111;

[0068] The box cover 12 includes a side cover plate 121 correspondingly connected to the top of the two groups of side plates 112, and an upper cover plate 122 and a middle cover plate 123 correspondingly connected to the top of the other two groups of side plates 112. The upper cover plate 122 and the middle cover plate 123 are pressed onto the side cover plate 121 in sequence from top to bottom and are locked by a locking structure 13. A box opening destruction line 14 is set on the upper cover plate 122.

[0069] Furthermore, at least two corresponding groups of side panels 112 are also connected with corresponding folding wings 113 , and the folding wings 113 are against the adjacent side panels 112 .

[0070] Furthermore, the locking structure 13 includes an inserting tongue connected to the upper cover plate 122 , and the inserting tongue passes through the middle cover plate 123 and the side cover plate 121 in sequence.

[0071] Specifically, the shape of the inserting tongue is not limited as long as it can achieve locking between the upper cover plate 122 , the middle cover plate 123 and the side cover plate 121 .

[0072] Furthermore, a first plug hole 1211 is formed on the side cover plate 121 , and a second plug hole 1231 is formed on the middle cover plate 123 corresponding to the first plug hole 1211 , and the insert tongue cooperates to pass through the second plug hole 1231 and the first plug hole 1211 in sequence.

[0073] Furthermore, the upper cover plate 122 and the middle cover plate 123 are bonded together by an adhesive strip 15 .

[0074] Furthermore, the unpacking damage line 14 includes a starting line 141 located on the upper cover plate 122 , and tear guide lines 142 extending obliquely from both ends of the starting line 141 to the two edges of the upper cover plate 122 close to the side cover plate 121 .

[0075] Specifically, the starting line 141 and the tear guide line 142 can both be dotted lines, the spacing between the two groups of side cover plates 121 is greater than the length of the starting line 141, and the width of the middle cover plate 123 is smaller than the distance from the starting line 141 to the side plate 112 connected to the middle cover plate 123 after the upper cover plate 122 is pressed onto the middle cover plate 123.

[0076] Furthermore, a cut corner 1212 is formed on the side cover plate 121 close to the upper cover plate 122 .

[0077] Specifically, the right angle on the side cover 121, close to the upper cover 122, is cut along two sides perpendicular to the right angle, and an inclined shear line with a certain angle is formed, so that a space is formed between the positions of the cut corners 1212 on the two corresponding groups of side cover plates 121, so that when the packaging box 1 is unpacked, the upper cover 122 on the side close to the tongue at the opening line 141 can be pressed down, so as to avoid the resistance of the side cover 121 without the cut corner 1212 to the upper cover 122 on this side from being pressed down, so that the upper cover 122 on this side can be easily pressed down to disconnect the upper cover 122 on both sides at the opening line 141.

[0078] Embodiment 2

[0079] like Figure 1 and Figure 2 As shown, the packaging material 2 is the base material used to form the packaging box 1 in the above-mentioned embodiment 1.

[0080] Specifically, the packaging material 2 can be made of corrugated cardboard, ordinary cardboard, hollow board, plastic honeycomb board, etc.

[0081] Furthermore, the packaging material 2 includes a bottom plate 111, side plates 112 correspondingly connected to the bottom plate 111 in pairs, side cover plates 121 correspondingly connected to two groups of the side plates 112, and an upper cover plate 122 and a middle cover plate 123 correspondingly connected to the other two groups of the side plates 112, and a box opening destruction line 14 is set on the upper cover plate 122.

[0082] Furthermore, at least two corresponding sets of side panels 112 are also connected with corresponding folding wings 113 .

[0083] Furthermore, a first plug hole 1211 is provided on the side cover plate 121, a tongue is provided on the side of the upper cover plate 122 away from the side plate 112, a second plug hole 1231 is provided on the middle cover plate 123, and the structures of the first plug hole 1211 and the second plug hole 1231 are matched with the structure of the tongue.

[0084] Furthermore, an adhesive strip 15 is also provided on the middle cover plate 123 .

[0085] Furthermore, an anti-sticking film is provided on the adhesive strip 15 .

[0086] Furthermore, the adhesive strip 15 is located on a side of the middle cover plate 123 away from the side plate 112 and is adjacent to the second insertion hole 1231 .

[0087] Furthermore, the unpacking damage line 14 includes a starting line 141 located on the upper cover plate 122 , and tear guide lines 142 extending obliquely from both ends of the starting line 141 toward the two edges of the upper cover plate 122 perpendicular to the side plates 112 .

[0088] Specifically, the starting line 141 and the tear guide line 142 may both be dotted lines.

[0089] Furthermore, the corner of the side cover plate 121 away from the insertion hole 1211 is cut into a cut corner 1212 .

[0090] Furthermore, pressure lines are provided at the joints between the bottom plate 111 and the side plate 112, the joints between the side plate 112 and the folding wings 113, the joints between the side plate 112 and the side cover plate 121, the joints between the side plate 112 and the upper cover plate 122 and the middle cover plate 123, and the joints between the upper cover plate 122 and the plug tongue.

[0091] Specifically, the crimping line provides a reference for the crimping machine, so that it can make indentations on the back side of the packaging material 2 where the crimping line is engraved at the crimping line position, so as to facilitate the subsequent forming of the packaging box 1.

[0092] Furthermore, an indentation is formed along the back side of the packaging material 2 where the indentation line is set.

[0093] Embodiment 3

[0094] like Figure 3 As shown, the tooling 3 is the tooling 3 used for boxing the packaging material 2 in the above-mentioned second embodiment.

[0095] Furthermore, the tooling 3 includes a rectangular box cavity 32 formed by at least four groups of limit plates 31 in sequence, and two pairs of guide ear groups 33 connected to the corresponding limit plates 31. The two pairs of guide ear groups 33 are arranged correspondingly, and a folding wing lifting channel 34 is formed between each pair of guide ear groups 33.

[0096] Specifically, each set of side walls of the rectangular box cavity 32 formed around it can be formed by at least one set of limiting plates 31. In order to simplify the production process and save costs, it is preferred that each set of side walls is a set of limiting plates 31. At the same time, the rectangular box cavity 32 is formed by four sets of limiting plates 31 vertically surrounding it in sequence.

[0097] Embodiment 4

[0098] like Figure 4 As shown, the difference from the third embodiment is that, further, there is a height difference between the adjacent side walls forming the rectangular box cavity 32.

[0099] Specifically, there is a height difference between the limiting plates 31 on the adjacent side walls that form the rectangular box cavity 32. The limiting plates 31 that constitute the adjacent side walls are designed to have different heights, so that the folding sequence of the packaging material 2 in the box-forming process can be determined according to the height of the limiting plates 31, thereby ensuring the qualified rate of the packaging material 2 in the box-forming process and avoiding the problem of the need to rework or difficulty in quickly unpacking the box later due to the wrong folding sequence.

[0100] In addition, in order to further ensure that each side panel 112 in the packaging material 2 moves downward smoothly along the rectangular box cavity 32, the spacing between the corresponding limiting plates 31 used to bend and lift the side panels 112 without folding wings 113 in the auxiliary packaging material 2 can also be designed to be larger than the spacing between the outer surfaces of the two groups of corresponding side panels 112 in the packaging box 1.

[0101] Embodiment 5

[0102] like Figure 3 and Figure 4 As shown, the difference from the third embodiment and the fourth embodiment is that, further, two pairs of guide ear groups 33 are correspondingly connected to the two ends of the limiting plate 31.

[0103] Furthermore, the two pairs of guide ear groups 33 extend out of the upper surface of the limiting plate 31 .

[0104] Specifically, the guide ear group 33 can be connected to the limiting plate 31 by gluing or bolting.

[0105] Furthermore, the guide ear group 33 includes two groups of guide ears 331 that are arranged correspondingly, and a folding wing lifting channel 34 is formed between the corresponding side walls of the two groups of guide ears 331.

[0106] Furthermore, the folding wing lifting channel 34 is in the shape of an inverted pyramid with a larger upper portion and a smaller lower portion.

[0107] Specifically, the width of the bottom of the flap lifting channel 34 is equal to the length of the side plate 112 with the flap 113 in the packaging material 2 to ensure that the flap 113 is vertically folded on one side of the side plate 112.

[0108] Embodiment 6

[0109] like Figure 3 and Figure 4 As shown, the difference from the fifth embodiment is that, further, a return channel 35 is extended from the lower part of the folding wing lifting channel 34, and the return channel 35 is set as a rectangular channel.

[0110] Specifically, the folding wing lifting channel 34 and the return channel 35 are formed by the side walls corresponding to the two groups of guide ears 331, wherein the side walls corresponding to the guide ears 331 are formed by a downwardly inclined wall surface and a vertical wall surface connected to the lower end thereof.

[0111] Embodiment 7

[0112] like Figure 1 , Figure 2 and Figure 5 As shown, a box-forming method, the box-forming method using the packaging material 2 described in Embodiments 3 to 6 is as follows:

[0113] S1, placing the packaging material 2 on the tooling 3;

[0114] S2, applying force to the bottom plate 111 in the packaging material 2, so that it drives the four sets of side plates 112 to bend at the joints and enter the inner cavity of the tooling 3 to form the box body 11;

[0115] S3, folding the two sets of side cover plates 121 inwards;

[0116] S4, pressing the middle cover plate 123 onto the side cover plate 121;

[0117] S5, the upper cover plate 122 is pressed onto the middle cover plate 123, and the box cover 12 is locked by the locking structure 13.

[0118] Furthermore, in the above step S1, the bottom plate 111 in the packaging material 2 is located above the rectangular box cavity 32 in the tooling 3, and the side plates 112 having folding wings 113 are respectively located in the folding wing lifting channels 34 of each pair of guide ear groups 33 in the tooling 3.

[0119] Furthermore, in the above step S2 , the folding wings 113 on the side panels 112 of the packaging material 2 will be gradually lifted up along the folding wing lifting channels 34 in the tooling 3 and bent to rest against the adjacent side panels 112 .

[0120] Furthermore, in the above step S5 , before pressing the upper cover plate 122 , the insert tongue is bent at the joint so that the insert tongue passes through the second insert hole 1231 and the first insert hole 1211 in sequence to lock the packaging box 1 .

[0121] Now let's talk about the packaging method in more detail, as follows:

[0122] S1, placing the packaging material 2 on the tooling 3;

[0123] S2, apply force to the bottom plate 111 in the packaging material 2 to make it move into the rectangular box cavity 32 in the tooling 3. At this time, the four groups of side plates 112 in the packaging material 2 are gradually lifted up by the limiting plates 31 in the tooling 3 with the help of the indentations at the junctions with the bottom plate 111, and move with the bottom plate 111, until the bottom plate 111 and the four groups of side plates 112 are bent together to form the box body 11. In this process, the folding wings 113 on the side plates 112 are also gradually lifted up along the indentations under the action of the folding wing lifting channels 34 in the tooling 3, and are corrected by the correcting channels 35 in the tooling 3, so that the side plates 112 move smoothly with the bottom plate 111, and their folding wings 113 are bent and pressed against the adjacent side plates 112;

[0124] S3, folding the side cover plate 121 inward along the indentation where the side plate 112 and the side cover plate 121 meet in the packaging material 2;

[0125] S4, fold the middle cover plate 123 in the packaging material 2 along the indentation where it connects with the side plates 112, so that it is pressed onto the two sets of side cover plates 121;

[0126] S5. Finally, the upper cover plate 122 is folded along the indentation at the joint between the side plate 112 and the upper cover plate 122 of the packaging material 2 so that it is pressed on the middle cover plate 123. At the same time, the plug tongue connected to it is bent to ensure that the plug tongue passes through the middle cover plate 123 and the side cover plate 121 in sequence, and the box body 11 is closed, and the packaging material 2 is boxed.

[0127] Furthermore, in the above step S5, before pressing the upper cover plate 122, the anti-sticking film on the middle cover plate 123 in the packaging material 2 is torn off first, so that the upper cover plate 122 is adhered to the middle cover plate 123 through the adhesive strip 15 to form the auxiliary locking structure 13 of the packaging box 1.

[0128] Embodiment 8

[0129] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown, the unpacking method of the packaging box 1, according to the first embodiment, the unpacking method of the packaging box 1 is to break the upper cover plate 122 into two parts along the unpacking breaking line 14, one part of which is connected to the middle cover plate 123, and the other part is still connected to the side plate 112. At this time, the entire packaging box 1 is unfolded.

[0130] Furthermore, the steps of disconnecting the upper cover plate 122 along the box opening damage line 14 are as follows:

[0131] Step 1: Disconnect the upper cover plate 122 on both sides of the opening line 141 along the opening line 141 on the upper cover plate 122 in the packaging box 1;

[0132] Step 2: From the position of the opening line 141 , hold the upper cover plate 122 on the side connected with the insert tongue, and lift the upper cover plate 122 on this side to make it break along the tear guide line 142 . At the same time, the insert tongue is pulled out of the side cover plate 121 , and the packing box 1 is unpacked.

[0133] Specifically, for the packaging box 1 that is locked and connected between the upper cover plate 122, the middle cover plate 123 and the side cover plate 121 only by the structure of the tongue, the first plug hole 1211 and the second plug hole 1231, when unpacking, it is necessary to hold the upper cover plate 122 and the middle cover plate 123 on the side connected with the tongue at the same time from the position of the starting line 141, and lift the upper cover plate 122 and the middle cover plate 123 on this side, so that the upper cover plate 122 is disconnected along the tear guide line 142. At this time, since the middle cover plate 123 is lifted up synchronously with the upper cover plate 122 on this side, Therefore, the insert tongue can only be pulled out of the side cover plate 121, thereby releasing the locking connection relationship between the upper cover plate 122 and the middle cover plate 123 and the side cover plate 121. Furthermore, since the upper cover plate 122 is cut into two parts along the starting line 141 and the tear guide line 142, that is, one part is connected to the middle cover plate 123 (equivalent to becoming a part of the new middle cover plate 123), the locking connection relationship between the upper cover plate 122 and the middle cover plate 123 is also released, so that the panels in the packaging box 1 can be bounced open under the action of the restoring force to achieve unpacking.

[0134] As for the packing box 1 in which the upper cover plate 122, the middle cover plate 123 and the side cover plate 121 are locked and connected not only by the structure of the tongue, the first plug hole 1211 and the second plug hole 1231, but also the upper cover plate 122 and the middle cover plate 123 are bonded and closed by the adhesive strip 15, when unpacking, it is necessary to hold the upper cover plate 122 on the side connected with the tongue from the position of the starting line 141, and lift up the upper cover plate 122 on this side, so that the upper cover plate 122 is disconnected along the tear guide line 142. At this time, since the middle cover plate 123 is bonded to the upper cover plate 122 on this side, Together, the insert tongue can only be pulled out of the side cover plate 121, thereby releasing the locking connection relationship between the upper cover plate 122 and the middle cover plate 123 and the side cover plate 121, and because the upper cover plate 122 is cut into two parts along the starting line 141 and the tear guide line 142, that is, one part is connected to the middle cover plate 123 (equivalent to becoming a part of the new middle cover plate 123), the locking connection relationship between the upper cover plate 122 and the middle cover plate 123 is also released, so that the panels in the packaging box 1 can be bounced open under the action of the restoring force to achieve unpacking.

[0135] Furthermore, in the above step one, after completing the disconnection of the connection between the upper cover plates 122 on both sides of the starting line 141, you can continue to follow the tear guide line 142 at both ends of the starting line 141 to release a length of the connection relationship between the upper cover plates 122 on both sides of the tear guide line 142 to ensure the smooth disconnection of the upper cover plates 122 on both sides of the tear guide line 142 at a later time.

[0136] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A packaging box, comprising a box body (11) and a box cover (12), characterized in that: The box body (11) comprises a bottom plate (111) and four groups of side plates (112) connected around the bottom plate (111); the box cover (12) comprises two groups of side cover plates (121) connected to the top of the four groups of side plates (112), an upper cover plate (122) and a middle cover plate (123); the upper cover plate (122) and the middle cover plate (123) are pressed onto the side cover plate (121) in sequence from top to bottom and are locked by a locking structure (13); and a box opening destruction line (14) is provided on the upper cover plate (122); The locking structure (13) comprises an inserting tongue connected to the upper cover plate (122), and the inserting tongue passes through the middle cover plate (123) and the side cover plate (121) in sequence; The shape of the tongue is sufficient to achieve locking between the upper cover plate (122), the middle cover plate (123) and the side cover plate (121); A first plug hole (1211) is provided on the side cover plate (121), and a second plug hole (1231) is provided on the middle cover plate (123) corresponding to the first plug hole (1211), and the plug tongue cooperates to pass through the second plug hole (1231) and the first plug hole (1211) in sequence; The upper cover plate (122) and the middle cover plate (123) are also bonded together by an adhesive strip (15); The box opening destruction line (14) comprises a starting line (141) located on the upper cover plate (122), and tear guide lines (142) extending obliquely from both ends of the starting line (141) to the two edges of the upper cover plate (122) close to the side cover plate (121); The opening line (141) and the tear guide line (142) are both dotted lines, the spacing between the two sets of side cover plates (121) is greater than the length of the opening line (141), and the width of the middle cover plate (123) is less than the distance from the opening line (141) to the side plate (112) connected to the middle cover plate (123) after the upper cover plate (122) is pressed onto the middle cover plate (123); A cut corner (1212) is formed on the side cover plate (121) close to the upper cover plate (122); The right angle on the side cover plate (121) close to the upper cover plate (122) is cut along two sides perpendicular to the right angle, and an inclined shear line with a certain included angle is formed, so that a space is formed between the positions of the cut corners (1212) on the two corresponding sets of side cover plates (121) so that the upper cover plate (122) close to the inserting tongue at the opening line (141) can be pressed down when the packaging box (1) is unpacked, so as to avoid the resistance of the side cover plate (121) without the cut corner (1212) to the upper cover plate (122) on the side being pressed down, so that the upper cover plate (122) on the side being pressed down is easily pressed down to disconnect the connection between the upper cover plates (122) on both sides at the opening line (141).

2. Packaging material, characterized in that: The packaging material (2) is the base material for forming the packaging box (1) as described in claim 1.

3. The packaging material according to claim 2, characterized in that: The packaging material (2) comprises a bottom plate (111), side plates (112) connected to the bottom plate (111) in pairs, side cover plates (121) connected to two groups of the side plates (112) in pairs, and an upper cover plate (122) and a middle cover plate (123) connected to the other two groups of the side plates (112), wherein a box opening destruction line (14) is provided on the upper cover plate (122).

4. The packaging material according to claim 3, characterized in that: At least two corresponding groups of the side panels (112) are also provided with correspondingly connected folding wings (113).

5. Tooling, characterized in that: The tooling (3) is the tooling (3) for boxing the packaging material (2) as described in any one of claims 3 to 4.

6. The tooling according to claim 5, characterized in that: The tooling (3) comprises a rectangular box cavity (32) formed by at least four groups of limiting plates (31) in sequence, and two pairs of guide ear groups (33) connected to the corresponding limiting plates (31), the two pairs of guide ear groups (33) are arranged correspondingly, and a folding wing lifting channel (34) is formed between each pair of guide ear groups (33).

7. A method for forming a box of packaging materials according to any one of claims 3 to 4, characterized in that: The method of packing the above-mentioned packaging material (2) is as follows: S1, placing the packaging material (2) on the tooling (3); S2, applying force to the bottom plate (111) in the packaging material (2), so that it drives the four sets of side plates (112) to bend at the joints and enter the inner cavity of the tooling (3), thereby forming a box body (11); S3, folding the two sets of side cover plates (121) inwards; S4, pressing the middle cover plate (123) onto the side cover plate (121); S5. The upper cover plate (122) is pressed onto the middle cover plate (123), and the box cover (12) is locked by the locking structure (13).

8. A method for unpacking a packaging box according to claim 1, characterized in that: The method for unpacking the packaging box (1) is to break the upper cover plate (122) into two parts along the unpacking breaking line (14), one part of which is connected to the middle cover plate (123) and the other part is still connected to the side plate (112). At this time, the entire packaging box (1) is unfolded.

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