A packaging box that is easy to open and its production process

Abstract

This application discloses a packaging box that is easy to open, relating to the field of article packaging technology. The packaging box comprises a box body, the box body comprising side panels, the side panels comprising an outer paper layer and an inner paper layer, the outer paper layer and the inner paper layer each being cut to form cutting lines, the two cutting lines being parallel and spaced apart, and the side panels forming a rupture zone between the two cutting lines. This application helps ensure the sealing of the box and helps ensure the convenience of opening the packaging box.

Description

Technical Field

[0001] The present application relates to the field of article packaging technology, and in particular to a packaging box that is easy to open and a production process thereof. Background Art

[0002] As the name suggests, a packaging box is a box used to package products. Its main function is to ensure the safety of products during transportation, reduce the pollution of products by dust and air, and also improve the grade of products. Among them, packaging boxes are mainly made of cardboard.

[0003] In related art, a packaging box includes a box body with a tear strip in the middle, which is integral with the box body and has tear lines on either side. The tear lines are formed during production by using a die cutter with continuous relief notches to punch the packaging paper, causing the die cutter to partially cut and partially relieve the paper. When unpacking the box, the tear line can be broken at the tear strip, and the strip can be pulled to tear it off the box body along the tear line.

[0004] Regarding the above-mentioned related technologies, although the box can be opened more conveniently through the tear strip, the paper of the packaging box is partially cut, and the sealing performance will be reduced, so there is room for improvement. Summary of the Invention

[0005] In order to improve the problem of low sealing performance of packaging boxes with tear strips in the related art, the present application provides a packaging box that is easy to open and a production process thereof.

[0006] In a first aspect, the present application provides a packaging box that is easy to open, using the following technical solution:

[0007] A packaging box that is easy to open includes a box body, the box body includes side panels, the side panels include an outer paper layer and an inner paper layer, the outer paper layer and the inner paper layer are both cut to form cutting lines, the two cutting lines are parallel and spaced apart, and the side panels are located between the two cutting lines to form a rupture zone.

[0008] By adopting the above technical solution, the two cutting lines are cut and formed in the outer and inner layers of paper of the side panel respectively, and do not penetrate the side panel, thereby helping to ensure the sealing of the box; at the same time, the two cutting lines have damaged the inner and outer layers of paper of the side panel, and the distance between the two cutting lines is relatively close, so the rupture area can be easily destroyed, which helps to ensure the convenience of opening the packaging box.

[0009] Preferably, the box body is provided with at least three side panels around its periphery, the cutting lines and the rupture zones are both provided corresponding to the side panels, and any two adjacent rupture zones are connected end to end.

[0010] By adopting the above technical solution, the rupture areas on each side panel are connected end to end. When the packaging box is opened through the rupture areas, a relatively neat gap will be formed on the packaging box, which is beneficial for displaying the items in the packaging box.

[0011] Preferably, all of the side panels are formed by continuously bending a whole piece of paperboard, and all the rupture areas are connected in sequence.

[0012] By adopting the above technical solution, the convenience of opening the packaging box is improved.

[0013] Preferably, a connecting layer is provided between the outer layer of paper and the inner layer of paper.

[0014] By adopting the above technical solution, a connecting layer is provided between the inner paper layer and the outer paper layer, which helps to improve the stability of the rupture zone and reduce the occurrence of the rupture zone being ruptured due to external compression of the packaging box.

[0015] In a second aspect, the present application provides a production process for a packaging box that is easy to open, using the following technical solution:

[0016] A production process for a packaging box that is easy to open comprises the following steps:

[0017] S1, raw material processing operation, bonding the outer layer paper and the inner layer paper of the box to form the original paper;

[0018] S2, die-cutting operation, punching the original paper, removing the excess waste of the formed box body, and forming box paper, and the box paper is mainly divided into the bottom plate area, the side plate area and the top plate area, and the side plate area is located between the bottom plate area and the top plate area;

[0019] S3, punching cutting line, punching cutting line of outer paper and inner paper in the side panel area of ​​the box paper, and forming a rupture area between the two cutting lines on the box paper;

[0020] S4, box folding operation, bending the box paper, the side panel area of the box paper is bent to form multiple side panels, and the corresponding two side edges of the side panel area are fixedly connected, thereby completing the folding of the packaging box.

[0021] By adopting the above technical solution, the production of the easy-to-open protection box is achieved, which helps to ensure the sealing of the box and helps to ensure the convenience of opening the packaging box.

[0022] Preferably, in step S3, a die-cutting device is used to punch cutting lines on the outer layer paper and the inner layer paper of the box paper side panel area;

[0023] The die-cutting device includes a mounting frame, a placement plate is provided on the mounting frame for lifting, a first elastic member is provided between the mounting frame and the placement plate, a first cutting knife is fixedly provided on the mounting frame at the lower side of the placement plate, and an avoidance groove for avoiding the first cutting knife is provided on the placement plate at a position corresponding to the first cutting knife;

[0024] The mounting frame is located on the upper side of the plate and is provided with a mold frame for lifting and lowering. A second cutting knife is provided on the lower side of the mold frame. A pressing frame is provided on the lower side of the mold frame for sliding. The pressing frame is located directly above the avoidance groove. A second elastic member is tightly provided between the pressing frame and the mold frame.

[0025] By adopting the above technical solution, in actual use, the box paper can be placed on the placement plate; then, the mold frame can be pressed down, and the pressing frame will descend together with the mold frame; then, the pressing frame will first press the box paper tightly on the placement plate, and as the mold frame continues to descend, the first elastic member and the second elastic member will be compressed, and the placement plate will also descend accordingly; finally, the first cutting knife will cut the lower side of the box paper, at this time, the pressing frame will act as a knife plate, and the second cutting knife will cut the upper layer of the box paper, thereby realizing the synchronous punching and cutting lines of the inner and outer layers of the box paper.

[0026] Preferably, a first limiting block is provided on the mounting frame for lifting, the first limiting block is located between the mounting frame and the placement plate, and a driving member for driving the first limiting block to lift is also provided on the mounting frame.

[0027] By adopting the above technical solution, in actual use, the staff can drive the first limit block to rise and fall through the driving member, thereby adjusting the cutting depth of the first cutting knife on the lower layer of the box paper.

[0028] Preferably, a first limiting groove is opened on the mounting frame in the horizontal direction, the first limiting block is embedded in the first limiting groove and slidably cooperates with the first limiting groove, a side wall in the length direction of the first limiting groove is inclined upwardly toward the side away from the first limiting block and forms a first guiding inclined surface, a side of the first limiting block close to the first guiding inclined surface is chamfered to form a first abutting inclined surface, and the first abutting inclined surface abuts against the first guiding inclined surface;

[0029] The first abutting inclined surface is provided with a first sliding groove along its inclined direction, a first slider is fixed to the first guiding inclined surface, the first slider is embedded in the first sliding groove and slides with the first sliding groove, and the first slider and the first sliding groove are both T-shaped;

[0030] The first limit block is slidably connected to the first connecting block in the vertical direction on one side away from the first abutting inclined surface. The mounting frame is provided with a first screw on one side of the first connecting block. The axis of the first screw is arranged along the length direction of the first limit groove. The first screw passes through a part of the mounting frame and is threadedly connected to the mounting frame, and one end of the first screw is rotatably connected to the first connecting block.

[0031] By adopting the above technical solution, in actual use, the staff can rotate the first screw to push the first limit block up and down, thereby adjusting the cutting depth of the first cutting knife on the lower layer of the box paper.

[0032] It is worth mentioning that the abutment between the first abutting slope and the first guide slope, the cooperation between the first slide groove and the first slider, and the support of the first limit block by the first screw help to improve the pressure-bearing capacity of the first limit block, reduce the occurrence of accidental drop of the first limit block under the pressure of the flat plate, and help to ensure the consistency and stability of the cutting line of the box paper cut by the first cutting knife.

[0033] In a third aspect, the present application provides a production process for a packaging box that is easy to open, using the following technical solution:

[0034] A production process for a packaging box that is easy to open comprises the following steps:

[0035] S1, punching operation, punching cutting lines on both the outer layer paper and the inner layer paper of the box;

[0036] S2, laminating operation, bonding the outer layer paper and the inner layer paper of the box to the two sides of the connecting layer respectively, and separating the two cutting lines and forming a rupture zone between the two cutting lines, thereby forming the original paper;

[0037] S3, die-cutting operation, punching the original paper, removing the excess waste of the formed box body, and forming box paper, and the box paper is mainly divided into the bottom plate area, the side plate area and the top plate area, and the side plate area is located between the bottom plate area and the top plate area;

[0038] S4, folding box operation, bend the box paper, the side panel area of the box paper is bent to form multiple side panels, and the corresponding two side edges of the side panel area are fixedly connected to complete the folding of the packaging box

[0039] By adopting the above technical solution, the production of the easy-to-open protection box is achieved, which helps to ensure the sealing of the box and helps to ensure the convenience of opening the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is an axonometric diagram of the overall structure of the packaging box that is easy to open, mainly embodying the first embodiment;

[0041] Figure 2This is a schematic diagram mainly showing the structure of the cutting line in the first embodiment;

[0042] Figure 3 This is a schematic diagram mainly showing the structure of the die-cutting device in the first embodiment;

[0043] Figure 4 This is an exploded schematic diagram of the structure of the placement plate and the first limiting block of the first embodiment;

[0044] Figure 5 This is an exploded schematic diagram of the installation structure of the first limit block according to the first embodiment;

[0045] Figure 6 This is an exploded schematic diagram of the structure of the pressing frame and the second limiting block of the first embodiment;

[0046] Figure 7 This is an exploded schematic diagram of the second limiting block installation structure according to the first embodiment.

[0047] Figure numerals: 1, box body; 11, side panel; 12, top panel; 13, bottom panel; 14, outer paper; 15, inner paper; 16, cutting line; 17, rupture zone; 2, mounting frame; 21, first cutting blade; 22, first slide column; 23, first compression spring; 24, first limiting groove; 241, first guide slope; 242, first slider; 25, first screw; 251, first handle; 26, second slide column; 3, placement plate; 31, avoidance groove; 4, mold frame; 41, second Cutting knife; 42, second limiting groove; 421, second guiding slope; 43, second sliding block; 44, second screw; 441, second handle; 5, pressure frame; 51, connecting rod; 511, adjusting nut; 52, second compression spring; 6, first limiting block; 61, first abutting slope; 62, first sliding groove; 63, first sliding groove; 64, first connecting block; 7, second limiting block; 71, second abutting slope; 72, second sliding groove; 73, second sliding groove; 74, second connecting block. DETAILED DESCRIPTION

[0048] The present application is further described in detail below with reference to the accompanying drawings.

[0049] The embodiments of the present application disclose a packaging box that is easy to open and a production process thereof.

[0050] Example 1:

[0051] Reference Figure 1 and Figure 2The easy-to-open packaging box includes a box body 1 formed by bending a single piece of cardboard. The box body 1 includes side panels 11, a top panel 12 located above the side panels 11, and a bottom panel 13 located below the side panels 11. Each part of the box body 1 includes an outer paper layer 14 and an inner paper layer 15. In this embodiment, the outer paper layer 14 and the inner paper layer 15 can be bonded together using glue or paste.

[0052] The outer paper layer 14 and the inner paper layer 15 of the side panels 11 are cut to form cutting lines 16. The two cutting lines 16 are parallel and spaced apart. The side panels 11 have a rupture zone 17 formed between the two cutting lines 16. The distance between the two cutting lines 16 is 5 mm to 15 mm, and preferably, the distance between the two cutting lines 16 is 10 mm. In this embodiment, the box body 1 is provided with four side panels 11 around its perimeter. Both the cutting lines 16 and the rupture zones 17 are provided corresponding to the side panels 11, and any two adjacent rupture zones 17 are connected end to end.

[0053] The implementation principle of the embodiment of the present application is a packaging box that is easy to open and its production process is as follows: two cutting lines 16 are cut and formed on the outer paper 14 and the inner paper 15 of the side panel 11 respectively, and do not penetrate the side panel 11, thereby helping to ensure the sealing of the box; at the same time, the two cutting lines 16 have damaged the inner and outer paper 14 of the side panel 11, and the distance between the two cutting lines 16 is relatively close, so the rupture area 17 can be easily destroyed, which helps to ensure the convenience of opening the packaging box.

[0054] The embodiments of the present application also disclose a production process for a packaging box that is easy to open.

[0055] A production process for a packaging box that is easy to open comprises the following steps:

[0056] S1, raw material processing operation, the outer paper 14 and the inner paper 15 of the box body 1 are bonded together to form a raw paper; in this embodiment, the outer paper 14 and the inner paper 15 can be fixed by glue or paste.

[0057] S2, die-cutting operation, a die-cutting machine can be used to punch the original paper, cut off the excess waste of the formed box body 1, and form box paper, and the box paper is mainly divided into a bottom plate area, a side plate area and a top plate area, and the side plate area is located between the bottom plate area and the top plate area.

[0058] S3, punching cutting lines 16, punching cutting lines 16 on the outer paper 14 and the inner paper 15 of the box paper side panel area by a die-cutting device, and forming a rupture area 17 between the two cutting lines 16 on the box paper.

[0059] Among them, see Figure 3The die-cutting device includes a mounting frame 2, on which a placement plate 3 is mounted for lifting. A first elastic member is positioned between the mounting frame 2 and the placement plate 3. A first cutting blade 21 is fixedly mounted on the mounting frame 2 below the placement plate 3. A clearance groove 31 is provided on the placement plate 3 at a position corresponding to the first cutting blade 21 for circumventing the first cutting blade 21. A mold frame 4 is mounted on the mounting frame 2 above the placement plate 3 for lifting. A second cutting blade 41 is positioned below the mold frame 4. A pressure frame 5 is positioned on the lower side of the mold frame 4 for vertical sliding movement. The pressure frame 5 is positioned directly above the clearance groove 31. A second elastic member is positioned between the pressure frame 5 and the mold frame 4 for pressing. In this embodiment, the orientations of the first cutting blade 21 and the second cutting blade 41 are both arranged to correspond to the cutting line 16.

[0060] Specifically, see Figure 3 and Figure 4 A first sliding post 22 is vertically fixed to the mounting frame 2. The first sliding post 22 passes through the placement plate 3 and is slidably connected to the placement plate 3. The placement plate 3 is rectangular, and the first sliding post 22 corresponds to the four corners of the placement plate 3. The first elastic member is a first compression spring 23. The two ends of the first compression spring 23 are respectively embedded in the mounting frame 2 and the placement plate 3, and the first compression spring 23 corresponds to the four corners of the placement plate 3.

[0061] Also, see Figure 4 and Figure 5The mounting frame 2 has a first limiting groove 24 formed along the length of the placement plate 3. A first limiting block 6 is embedded in the first limiting groove 24. The first limiting block 6 slides and engages with the first limiting groove 24 along the length of the first limiting groove 24, and the upper side of the first limiting block 6 protrudes from the upper side of the mounting frame 2. A side wall of the first limiting groove 24 in the length direction is inclined upward toward the side away from the first limiting block 6 and is formed with a first guide slope 241. The side of the first limiting block 6 near the first guide slope 241 is chamfered to form a first abutting slope 61, which abuts the first guide slope 241. A first sliding groove 62 is formed on the first abutting slope 61 along its inclination direction. A first slider 242 is fixed to the first guiding slope 241. The first slider 242 and the first sliding groove 62 are both T-shaped, and the first slider 242 is embedded in the first sliding groove 62 and slides and engages with the first sliding groove 62. A first sliding groove 63 is vertically defined on the side of the first limiting block 6 facing away from the first abutting inclined surface 61. The first sliding groove 63 is vertically slidably connected to a first connecting block 64, and both the first sliding groove 63 and the first connecting block 64 are T-shaped. The mounting frame 2 is also provided with a driving member for driving the first limiting block 6 to rise and fall. The driving member is a first screw 25. The first screw 25 is located on one side of the first limiting block 6 and the first connecting block 64. The axis of the first screw 25 is arranged along the length of the first limiting groove 24. The first screw 25 partially penetrates the mounting frame 2 and is threadedly connected to the mounting frame 2. One end of the first screw 25 is rotatably connected to the first connecting block 64. A first handle 251 is fixed to the side of the first screw 25 facing away from the first connecting block 64.

[0062] See also Figure 3 and Figure 6 A second slide post 26 is vertically fixed to the mounting frame 2. The second slide post 26 passes through the mold frame 4 and is slidably connected to the mold frame 4. The mold frame 4 has a rectangular structure, and the second slide post 26 corresponds one-to-one with the four included angles of the mold frame 4. A connecting rod 51 is vertically fixed to the upper side of the pressing frame 5. The connecting rod 51 extends upward through the mold frame 4 and is slidably connected to the mold frame 4. One end of the connecting rod 51 passes through the mold frame 4 and is threadedly connected to an adjustment nut 511. Four connecting rods 51 are arranged around the pressing frame 5 at intervals, and the adjustment nuts 511 correspond one-to-one with each connecting rod 51. The second elastic member is a second compression spring 52, which is sleeved on the connecting rod 51. The two ends of the second compression spring 52 respectively pass through the mold frame 4 and the pressing frame 5, and the second compression spring 52 corresponds one-to-one with the connecting rod 51.

[0063] See also Figure 6 and Figure 7The mold frame 4 has a second limiting groove 42 defined on its lower side along the width of the placement plate 3. A second limiting block 7 is embedded in the second limiting groove 42. The second limiting block 7 slides and engages with the second limiting groove 42 along its length, and the lower side of the second limiting block 7 protrudes from the lower side of the mold frame 4. A sidewall of the second limiting groove 42, along its length, is inclined downwardly, away from the second limiting block 7, and is formed with a second guide slope 421. The side of the second limiting block 7, adjacent to the second guide slope 421, is chamfered to form a second abutting slope 71, which abuts the second guide slope 421. A second chute 72 is defined on the second abutting slope 71 along its inclination. A second slider 43 is fixed to the second guide slope 421. Both the second slider 43 and the second chute 72 are T-shaped, and the second slider 43 is embedded in and slides and engages with the second chute 72. A second sliding groove 73 is vertically defined on the side of the second limiting block 7 facing away from the second abutting inclined surface 71. The second sliding groove 73 is vertically slidably connected to a second connecting block 74, and both the second sliding groove 73 and the second connecting block 74 are T-shaped. A second screw 44 is also provided on the mold frame 4. The second screw 44 is located on one side of the second limiting block 7 and the second connecting block 74. The axis of the second screw 44 is arranged along the length of the second limiting groove 42. The second screw 44 partially penetrates the mold frame 4 and is threadedly connected to the mold frame 4. One end of the second screw 44 is rotatably connected to the second connecting block 74. A second handle 441 is fixed to the side of the second screw 44 facing away from the second connecting block 74.

[0064] The steps of using the die-cutting device to punch the cutting lines 16 on the outer paper 14 and the inner paper 15 in the box paper side panel area are as follows:

[0065] First, the box paper can be placed on the placement plate 3; then, the mold frame 4 can be pressed down, and the pressing frame 5 will descend together with the mold frame 4; then, the pressing frame 5 will first press the box paper tightly on the placement plate 3, and as the mold frame 4 continues to descend, the first compression spring 23 and the second compression spring 52 will be compressed, and the placement plate 3 will also descend accordingly; finally, the first cutting knife 21 will cut the lower side of the box paper, at this time, the pressing frame 5 will act as a knife plate, and at the same time, the second cutting knife 41 will cut the upper layer of the box paper.

[0066] In addition, the staff can also adjust the distance between the first limit block 6 and the placement plate 3, and the distance between the second limit block 7 and the pressing frame 5 by rotating the first handle 251 and the second handle 441, thereby adjusting the cutting depth of the first cutting knife 21 and the second cutting knife 41 on the outer paper 14 and the inner paper 15 respectively.

[0067] It should be noted that when using the die-cutting device, the die-cutting device can be installed on a die-cutting machine for use, that is, the mounting frame 2 is installed on the lower die plate of the die-cutting machine, and the die frame 4 is installed on the upper die plate of the die-cutting machine. Of course, in other embodiments, a pneumatic cylinder or an electric cylinder can also be installed on the mounting frame 2 to drive the die frame 4 to rise and fall, so as to normally cut the cutting line 16 on the box paper.

[0068] S4, box folding operation, the box paper is bent, the side panel area of the box paper is bent to form a plurality of side panels 11, and the corresponding two side edges of the side panel area are fixedly connected, thereby completing the folding of the packaging box. In this embodiment, a box folding machine can be used to automatically fold the packaging box.

[0069] Example 2:

[0070] The difference between this embodiment and the first embodiment is that a connecting layer is provided between the outer paper 14 and the inner paper 15. In this embodiment, the connecting layer is a common single-layer paper, and both the outer paper 14 and the inner paper 15 can be connected to the connecting layer by glue or paste.

[0071] The embodiments of the present application also disclose a production process for a packaging box that is easy to open.

[0072] The production process of a packaging box that is easy to open includes the following steps:

[0073] S1, punching operation, punching cutting lines 16 on both the outer paper 14 and the inner paper 15 of the box body 1.

[0074] S2, laminating operation, respectively bonding the outer paper 14 and the inner paper 15 of the box body 1 to the two sides of the connecting layer, and spacing the two cutting lines 16 and forming a rupture zone 17 between the two cutting lines 16, thereby forming the original paper.

[0075] S3, die-cutting operation, punching the original paper, cutting off the excess waste of the formed box body 1, and forming box paper, and the box paper is mainly divided into a bottom plate area, a side plate area and a top plate area, and the side plate area is located between the bottom plate area and the top plate area.

[0076] S4, box folding operation, bending the box paper, the side panel area of the box paper is bent to form a plurality of side panels 11, and the corresponding two side edges of the side panel area are fixedly connected, thereby completing the folding of the packaging box.

[0077] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A production process for a packaging box that is easy to open, comprising a box body (1), the box body (1) comprising a side panel (11), the side panel (11) comprising an outer paper layer (14) and an inner paper layer (15), the outer paper layer (14) and the inner paper layer (15) being cut to form cutting lines (16), the two cutting lines (16) being parallel and spaced apart, and the side panel (11) being located between the two cutting lines (16) to form a rupture zone (17); Its characteristics are: The following steps are included: S1, raw material processing operation, bonding the outer layer paper (14) and the inner layer paper (15) of the box body (1) to form a base paper; S2, die-cutting operation, punching the original paper, cutting off the excess waste of the formed box body (1), and forming box paper, and the box paper is mainly divided into a bottom plate area, a side plate area and a top plate area, and the side plate area is located between the bottom plate area and the top plate area; S3, punching cutting line (16), punching cutting line (16) on the outer paper (14) and the inner paper (15) of the box paper side panel area, and forming a rupture area (17) between the two cutting lines (16) on the box paper; S4, folding the box paper, bending the side panel area of the box paper to form a plurality of side panels (11), and fixing the corresponding two side edges of the side panel area to complete the folding of the packaging box; In step S3, a die-cutting device is used to punch cutting lines (16) on the outer layer paper (14) and the inner layer paper (15) of the box paper side panel area; The die-cutting device comprises a mounting frame (2), a placement plate (3) is provided on the mounting frame (2) for lifting, a first elastic member is provided between the mounting frame (2) and the placement plate (3) for pressing against each other, a first cutting knife (21) is fixedly provided on the mounting frame (2) at the lower side of the placement plate (3), and an avoidance groove (31) for avoiding the first cutting knife (21) is provided on the placement plate (3) at a position corresponding to the first cutting knife (21); The mounting frame (2) is located on the upper side of the placement plate (3) and is provided with a mold frame (4) for lifting and lowering, a second cutting knife (41) is provided on the lower side of the mold frame (4), a pressing frame (5) is provided on the lower side of the mold frame (4) for sliding, the pressing frame (5) is located just above the avoidance groove (31), and a second elastic member is provided between the pressing frame (5) and the mold frame (4) for pressing against each other; A first limit block (6) is provided on the mounting frame (2) for lifting, the first limit block (6) being located between the mounting frame (2) and the placement plate (3), and a driving member for driving the first limit block (6) to lift is also provided on the mounting frame (2); A first limiting groove (24) is provided on the mounting frame (2) in a horizontal direction, the first limiting block (6) is embedded in the first limiting groove (24) and slidably cooperates with the first limiting groove (24), a side wall of the first limiting groove (24) in a length direction is inclined upwardly toward a side away from the first limiting block (6) and forms a first guiding inclined surface (241), a side of the first limiting block (6) close to the first guiding inclined surface (241) is chamfered to form a first abutting inclined surface (61), and the first abutting inclined surface (61) abuts against the first guiding inclined surface (241); The first abutting inclined surface (61) is provided with a first sliding groove (62) along its inclined direction, a first slider (242) is fixed on the first guiding inclined surface (241), the first slider (242) is embedded in the first sliding groove (62) and slides with the first sliding groove (62), and the first slider (242) and the first sliding groove (62) are both T-shaped; The first limiting block (6) is slidably connected to a first connecting block (64) in a vertical direction on a side away from the first abutting inclined surface (61). The mounting frame (2) is provided with a first screw (25) on one side of the first connecting block (64). The axis of the first screw (25) is arranged along the length direction of the first limiting groove (24). The first screw (25) passes through a part of the mounting frame (2) and is threadedly connected to the mounting frame (2), and one end of the first screw (25) is rotatably connected to the first connecting block (64).

2. The process for producing a packaging box that is easy to open according to claim 1, characterized in that: The box body (1) is provided with at least three side panels (11) around its periphery. Both the cutting line (16) and the rupture zone (17) are provided corresponding to the side panels (11), and any two adjacent rupture zones (17) are connected end to end.

3. The process for producing an easy-to-open packaging box according to claim 1, characterized in that: All of the side panels (11) are formed by continuously bending a whole piece of cardboard, and all of the rupture areas (17) are connected in sequence.

4. The process for producing a packaging box that is easy to open according to claim 1, characterized in that: A connecting layer is provided between the outer layer of paper (14) and the inner layer of paper (15).

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