Sealed moisture-preserving type packaging box, preparation method and preparation device
The sealed and moist-retaining packaging boxes are prepared by ultrasonic welding technology and automated equipment, which solves the problem of poor sealing of cigarette packaging boxes, achieves long-term high-quality storage and moist-retaining effects for cigarettes, and saves materials.
Patent Information
- Application Number
- CN202511003008.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2025-10-28
AI Technical Summary
Traditional cigarette packaging boxes have poor sealing properties, which causes cigarettes to lose moisture or become damp during storage, affecting the quality of smoking. Existing sealing measures consume materials and increase the difficulty of box molding.
Ultrasonic welding technology and automated equipment are used to prepare sealed and moisture-retaining packaging boxes through pre-folding, automatic flipping and compression molding of flat paper sheets. The outer box body and the inner box body are respectively ultrasonically welded to form a sealed structure.
It achieves a sealing effect for long-term high-quality storage of cigarettes, improves moisture retention, saves materials, and is environmentally friendly and hygienic.
Smart Images
Figure CN120841006A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of tobacco technology, specifically relating to a novel sealed and moisture-retaining packaging box, its preparation method, and its preparation apparatus. Background Technology
[0002] Current paper packaging typically uses folded paper to form a box as the outer packaging for the contents. Traditional cigarette packaging suffers from insufficient sealing. Because paper has natural gaps, and ordinary cardboard boxes usually use water-based adhesives bonded together at application points, the contact areas around these points cannot be completely sealed. Over time, this leads to moisture loss from the cigarettes or internal dampness, reducing the smoking experience. Secondly, once the cigarette packaging is opened, the internal environment exchanges rapidly with the outside, causing the cigarettes inside to become either too dry or excessively damp. Both situations degrade cigarette quality and affect the smoking experience. To achieve both sealing and moisture retention after packaging, multiple layers of paper or waterproof plastic film are usually added to the outer packaging. This not only consumes materials but also increases the thickness of the cardboard box, making box shaping difficult. Therefore, this invention is proposed. Summary of the Invention
[0003] To address this problem, this invention discloses a novel airtight and moisture-retaining packaging box with excellent sealing performance. The paper layers have a polymer coating that can be ultrasonically welded both inside and out. The outer box is automatically formed using an automatic pre-folding device for cigarette boxes, an automatic flipping and forming device suitable for moisture-retaining cigarette boxes, and an ultrasonic welding device. The inner box is automatically formed using an automatic molding and ultrasonic welding device suitable for moisture-retaining cigarette boxes. This invention's airtight and moisture-retaining packaging box provides excellent sealing performance, ensuring high-quality storage of cigarettes for extended periods, while also improving moisture retention after repeated opening and closing. The manufacturing method is simple, and the box-shaped paper structure is thin, saving materials.
[0004] The technical solutions of the present invention are as follows:
[0005] The first aspect of this invention discloses a sealed and moisture-retaining packaging box, which is rectangular in shape; it includes an outer box body 61 and an inner box body 62; the outer box body 61 has five sealed sides: the outer front side 611, the outer rear side 612, the outer left side 613, the outer right side 614, and the outer bottom side 615, and an open upper side 616; the inner box body 62 has five sealed sides: the inner rear side 622, the inner left side 623, the inner right side 624, the inner bottom side 625, and the inner top side 626, and an open front side 621; the outer box body 61 and the inner box body 62 are compatible.
[0006] The second aspect of the present invention discloses a method for preparing the sealed and moisture-retaining packaging box, wherein the outer box body 61 is obtained by pre-folding flat paper, automatic flipping and forming, and ultrasonic welding; and the inner box body 62 is obtained by automatic molding of flat paper and ultrasonic welding.
[0007] Preferably, the pre-folding of the flat paper is accomplished by an automatic pre-folding device for cigarette boxes; the automatic pre-folding device for cigarette boxes includes a long-side automatic pre-folding device and a short-side automatic pre-folding device, connected by a rotating suction cup 3; the long-side automatic pre-folding device includes a long-side pressure table 10, a long-side suction cup 11, a long-side flipping device 12, a long-side pressure roller 13, a long-side pre-pressure baffle 14, a long-side pressure roller cylinder 15, and a long-side pressure roller driving device 16; wherein the long-side suction cup 11 and the long-side pressure roller 13 are on the long-side pressure table 10, the long-side flipping device 12 and the long-side pressure roller 13 are sequentially located on the left side of the long-side suction cup 11, and the long-side pre-pressure baffle 14 is located above the long-side suction cup 11; the long-side pressure roller 13 and the long-side pressure roller driving device 16 are fixedly connected; the short-side... The automatic pre-folding device includes a short-side pressure platform 20, a short-side suction cup 21, a short-side flipping device 22, a short-side pressure roller 23, a short-side pre-pressure baffle 24, a short-side pressure roller cylinder 25, and a short-side pressure roller drive device 26. The short-side suction cup 21 and the short-side pressure roller 23 are located on the short-side pressure platform 20. The short-side flipping device 22 and the short-side pressure roller 23 are sequentially located to the right of the short-side suction cup 21. The short-side pre-pressure baffle 24 is located above the short-side suction cup 21. The short-side pressure roller 23 and the short-side pressure roller drive device 26 are fixedly connected. The upper surface of the rotating and moving suction cup 3 has a suction cup 31, and the lower end has a rotating device 32. The rotating device 32 is arranged on a track 33 in the left-right direction. The rotating and moving suction cup 3 is electrically connected to a displacement drive device 34.
[0008] Preferably, the pre-folding process of the flat paper is as follows: the rotating suction cup 3 adsorbs the paper, rotates it to a suitable direction, and then moves it horizontally to the left along the track 33 to a suitable position under the drive of the displacement driving device 34, placing the paper on the long side pressure table 10 of the left automatic pre-folding device. The paper is in close contact with the long side pre-pressing baffle 14, the long side suction cup 11 adsorbs the paper, and the long side flipping device 12 flips it with the long side suction cup 11 as the axis. The long side pressure roller 13 rolls back and forth on the long side pressure table 10 at the crease of the paper to achieve a greater pressure on the long side fold of the paper.
[0009] The rotating suction cup 3 re-adsorbs the paper and moves horizontally to the right along the track 33 under the drive of the displacement drive device 34. The paper is placed on the short side pressure table 20 of the automatic pre-folding device on the right. The paper is pressed tightly against the short side pre-pressure baffle 2. The short side suction cup 21 adsorbs the paper, and the short side flipping device 22 flips around the short side suction cup 21 as the axis. Driven by the short side pressure roller drive device 26 and driven by the short side pressure roller cylinder 25, the short side pressure roller 23 rolls back and forth on the short side pressure table 20 at the crease of the paper to achieve a greater pressure on the short side fold of the paper.
[0010] The above process is automated.
[0011] Preferably, the automatic flipping and ultrasonic welding are automatically completed by a device suitable for automatic flipping and ultrasonic welding of cigarette boxes for lubrication. This device includes: a suction cup positioning block 41; a core block 42; an ultrasonic generator 43; and a vertical moving mechanism 49. The suction cup positioning block 41 is arranged at the center of the forming and welding device, and the core block 42 is mounted on the vertical moving mechanism 49 and above the suction cup positioning block 41. The ultrasonic generator 43 is arranged on the side of the forming and welding device, and the ultrasonic welding head 431 faces the center of the forming and welding process. The device further includes: a core expansion mechanism 421, a clamping device 44, a long-side push plate 45, a short-side push plate 46; a side-forming push plate 47 and a side-clamping mechanism 48; the core expansion mechanism 421 is mounted on the core block 42; the ultrasonic generator 43 is mounted on the clamping device 44; the side-clamping mechanism 48 is mounted on the up-and-down moving mechanism 49; the device further includes: a long-side push plate 45, a short-side push plate 46 and a side-forming push plate 47; the long-side push plate 45 can be rotated with the suction cup positioning block 41 as the axis; the short-side push plate 46 can move up and down; the side-forming push plate 47 can move back and forth on the wide surface of the paper.
[0012] Preferably, the automatic flipping forming and ultrasonic welding process is as follows: the paper is placed on the suction cup positioning block 41, which generates suction to fix the paper; the core block 42 presses down to press the paper, at which time the core expansion mechanism 421 retracts and does not work; the long side push plate 45 flips around the suction cup positioning block 41 as the axis, thereby causing the wide side of the paper to flip and fit tightly against the core block 42; the side forming push plate 47 moves to make the narrow side of the paper bend 90° and fit tightly against the core block 42; the short side push plate 46 moves upward to make the narrow side of the paper fit tightly against the core block 42. During the upward movement of the core block 42, the side forming push plate 47 retracts; after the short side push plate 46 moves to its position, it opens to fill the internal cavity of the paper; the side clamping mechanism 48 clamps the upper end of the formed cigarette box, and the short side push plate 46 moves downward and retracts; under the control of the clamping device 44, the ultrasonic generator 43's ultrasonic welding head 431 is in close contact with the narrow surface of the cigarette box; the ultrasonic generator 43 welds the narrow surface and the narrow side edge of the cigarette box through its own high-frequency vibration; the cigarette box forming welding work is completed, and a completely sealed cigarette box is obtained.
[0013] Preferably, the ultrasonic welding head 431 has a welding time of 0.5-0.7 seconds, a welding amplitude range of 10-35 μm, and a welding pressure of 0.4-0.6 MPa.
[0014] Preferably, the automatic molding and ultrasonic welding of flat paper is automatically completed by an automatic molding and ultrasonic welding device suitable for insulated cigarette boxes; the automatic molding and ultrasonic welding device suitable for insulated cigarette boxes includes: an inner mold 510, a suction cup 511, a forming mold 512, a paper picking device 513, a cigarette box holder 514, a Z-axis device 515, an X-axis device 516, and a plate 52; the X-axis device 516 is arranged horizontally on the surface of the plate 52; the Z-axis device 515 is perpendicular to the surface of the plate 52 and installed on the X-axis device 516; the suction cup 511 is embedded in the inner mold 510, and the inner mold 510 is installed at the bottom of the Z-axis device 515; the cigarette box holder 514 is arranged outside the plate 52 to the right of the X-axis device 516, and the paper picking device 513 is arranged to the right of the X-axis device 516. The forming mold 512 is arranged on the left side of the paper taking device 513 at the edge of the plate body 52. The device also includes: a long-side ultrasonic generator 531, a short-side ultrasonic generator 541, and an angle ultrasonic generator 551. There are two long-side ultrasonic generators 531, symmetrically arranged on the left and right sides of the plate body 52. There are two short-side ultrasonic generators 541, symmetrically arranged on the front and rear sides of the plate body 52. There are four angle ultrasonic generators 551, symmetrically arranged on the two diagonals of the plate body 52. Each long-side ultrasonic generator 531 is mounted on a long-side linkage power source 532. Each short-side ultrasonic generator 541 is mounted on a short-side linkage power source 542. Each angle ultrasonic generator 551 is mounted on an angle linkage power source 552.
[0015] Preferably, the automatic molding and ultrasonic welding process of the flat paper is as follows: the paper taking device 513 takes the flat cigarette box paper from the cigarette box holder 514 and places it into the forming mold 512; the X-axis device 516 moves, driving the Z-axis device 515 to move, driving the inner mold 510 to move above the forming mold 512; the Z-axis device 515 moves down, driving the inner mold 510 down into the forming mold 512, and the cigarette box paper is stamped from the flat sheet into a protruding shape; the suction cup 511 generates suction, pressing the formed cigarette box tightly against the inner mold 510; the Z-axis device 515 moves up, driving the inner mold 510 up, and taking out the formed cigarette box; the X-axis device 516 moves, driving the Z-axis device 515 to move, driving the inner mold 510 to move to the sealing position. Above the paper box; the Z-axis device 515 moves downward, driving the formed cigarette box paper to a designated height; the long side linkage power source 532 actuates, driving the long side ultrasonic generator 531 to adhere tightly to the long side of the cigarette box surface; the long side ultrasonic generator 531 welds, thus welding the long side of the formed cigarette box together; the short side linkage power source 542 actuates, driving the short side ultrasonic generator 541 to adhere tightly to the short side of the cigarette box surface; the short side ultrasonic generator 541 welds, thus welding the short side of the formed cigarette box together; the corner linkage power source 552 actuates, driving the corner ultrasonic generator 551 to adhere tightly to the four corner surfaces of the cigarette box; the corner ultrasonic generator 551 welds, thus welding the four corners of the formed cigarette box together.
[0016] Preferably, the welding time of the long-side ultrasonic generator 531, the short-side ultrasonic generator 541, and the angle ultrasonic generator 551 is 0.5-0.7 seconds, the welding amplitude range is 10-35 μm, and the welding pressure is 0.4-0.6 MPa.
[0017] The beneficial effects of this invention are:
[0018] The sealed and moisture-retaining packaging box of this invention uses paper coated with a PE film as the overall material, resulting in low material consumption and a thin structure. The entire process is automated using an automatic pre-folding device for cigarette boxes, an automatic flipping and forming device for moisture-retaining cigarette boxes, and an automatic molding and ultrasonic welding device for moisture-retaining cigarette boxes, making the manufacturing method simple. The resulting sealed and moisture-retaining packaging box has excellent sealing performance, achieving a good seal without the need for additional sealing materials, ensuring long-term high-quality storage of cigarettes, and also improving the moisture retention effect after the cigarette packaging is opened, saving materials and being environmentally friendly and hygienic. Attached Figure Description
[0019] Figure 1 This is a perspective view of the sealed and moisture-retaining packaging box of the present invention.
[0020] Figure 2 This is a perspective view of the outer box of the sealing and moisture-retaining packaging box of the present invention.
[0021] Figure 3 This is a perspective view of the inner box of the sealing and moisture-retaining packaging box of the present invention.
[0022] Figure 4 This is a schematic diagram of the outer box of the sealing and moisture-retaining packaging box of the present invention before the flat sheet of paper is pre-folded.
[0023] Figure 5 This is a schematic diagram of the outer box of the sealing and moisture-retaining packaging box of the present invention, showing how the flat sheet of paper is pre-folded and automatically flipped to form the outer box.
[0024] Figure 6 This is a schematic diagram of the flat sheet of paper before the automatic molding of the inner box of the sealing and moisture-retaining packaging box of the present invention.
[0025] Figure 7 This is a perspective view of the automatic pre-folding device for cigarette boxes of the present invention, mainly showing the components of the automatic pre-folding device along the long side.
[0026] Figure 8 This is a perspective view of the automatic pre-folding device for cigarette boxes of the present invention, mainly showing the components of the automatic pre-folding device on the short side.
[0027] Figure 9 This is a perspective view of the automatic pre-folding device for cigarette boxes of the present invention, mainly showing the components and positions of the rotating and moving suction cup (3).
[0028] Figure 10 This is a perspective view of the automatic flipping and ultrasonic welding device for the present invention, applicable to the lubricating cigarette box.
[0029] Figure 11 for Figure 10 Another perspective of the 3D view.
[0030] Figure 12 This is a perspective view of the automatic molding and ultrasonic welding device for moisturizing cigarette boxes according to the present invention.
[0031] Figure 13 for Figure 12 Another perspective of the 3D view.
[0032] The attached figures are labeled as follows: 10. Long side pressure platform; 11. Long side suction cup; 12. Long side flipping device; 13. Long side pressure roller; 14. Long side pre-pressure baffle; 15. Long side pressure roller cylinder; 16. Long side pressure roller drive device; 20. Short side pressure platform; 21. Short side suction cup; 22. Short side flipping device; 23. Short side pressure roller; 24. Short side pre-pressure baffle; 25. Short side pressure roller cylinder; 26. Short side pressure roller drive device; 3. Rotating suction cup; 31. Suction cup; 32. Rotating device; 33. Track; 41. Suction cup positioning block; 42. Core block; 421. Core expansion mechanism; 43. Ultrasonic generator. 431 Ultrasonic welding head; 44 Clamping device; 45 Long side push plate; 46 Short side push plate; 47 Side forming push plate; 48 Side clamping mechanism; 49 Up and down moving mechanism; 510 Inner mold; 511 Suction cup; 512 Forming mold; 513 Paper picking device; 514 Cigarette box holder; 515 Z-axis device; 516 X-axis device; 52 Plate body; 531 Long side ultrasonic generator; 532 Long side linkage power source; 541 Short side ultrasonic generator; 542 Short side linkage power source; 551 Angle ultrasonic generator; 552 Angle linkage power source. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.
[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," "fixing," "adhesion," etc., should be interpreted broadly. For example, they can refer to a connection, a detachable connection, or an integral part. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0036] In this specification, the illustrative expressions of the terms used above should not be construed as necessarily referring to the same embodiments or examples. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0037] like Figures 1-3 As shown, the present invention provides a sealed and moisture-retaining packaging box, which is rectangular in shape; it includes an outer box body 61 and an inner box body 62; the outer box body 61 has five sealed sides: the outer front side 611, the outer rear side 612, the outer left side 613, the outer right side 614, and the outer bottom side 615, and an open upper side 616; the inner box body 62 has five sealed sides: the inner rear side 622, the inner left side 623, the inner right side 624, the inner bottom side 625, and the inner top side 626, and an open front side 621; the outer box body 61 and the inner box body 62 are compatible.
[0038] The method for preparing the sealed and moisture-retaining packaging box of the present invention involves obtaining the outer box body 61 through pre-folding of flat paper, automatic flipping forming, and ultrasonic welding, as shown below. Figures 4 to 5 to Figure 2 The inner box 62 is obtained by automatic molding and ultrasonic welding of flat paper, such as... Figures 6 to 3 .
[0039] The pre-folding of the flat paper is accomplished by an automatic pre-folding device for cigarette boxes; the automatic pre-folding device for cigarette boxes is as follows: Figures 7-9As shown, the device includes an automatic long-side pre-folding device and an automatic short-side pre-folding device, connected by a rotating suction cup 3. The automatic long-side pre-folding device includes a long-side pressure table 10, a long-side suction cup 11, a long-side flipping device 12, a long-side pressure roller 13, a long-side pre-pressure baffle 14, a long-side pressure roller cylinder 15, and a long-side pressure roller drive device 16. The long-side suction cup 11 and the long-side pressure roller 13 are on the long-side pressure table 10. The long-side flipping device 12 and the long-side pressure roller 13 are located sequentially on the left side of the long-side suction cup 11, and the long-side pre-pressure baffle 14 is located above the long-side suction cup 11. The long-side pressure roller 13 and the long-side pressure roller drive device 16 are fixedly connected. The automatic short-side pre-folding device includes a short-side pressure table 2. 0. A short-side suction cup 21, a short-side flipping device 22, a short-side pressure roller 23, a short-side pre-pressure baffle 24, a short-side pressure roller cylinder 25, and a short-side pressure roller drive device 26; wherein the short-side suction cup 21 and the short-side pressure roller 23 are on the short-side pressure platform 20, the short-side flipping device 22 and the short-side pressure roller 23 are arranged sequentially on the right side of the short-side suction cup 21, and the short-side pre-pressure baffle 24 is on the upper part of the short-side suction cup 21; the short-side pressure roller 23 and the short-side pressure roller drive device 26 are fixedly connected; the upper end of the rotating and moving suction cup 3 has a suction cup 31, and the lower end has a rotating device 32; the rotating device 32 is arranged on a track 33 in the left and right direction; the rotating and moving suction cup 3 is electrically connected to the displacement drive device 34. The pre-folding process of the flat sheet of paper is as follows: the rotating suction cup 3 picks up the paper, rotates it to a suitable direction, and then moves it horizontally to the left along the track 33 to a suitable position under the drive of the displacement drive device 34, placing the paper on the long side pressure table 10 of the automatic pre-folding device on the left. The paper is in close contact with the long side pre-pressure baffle 14, the long side suction cup 11 picks up the paper, and the long side flipping device 12 flips it around the long side suction cup 11 as the axis; the long side pressure roller 13 rolls back and forth on the long side pressure table 10 at the crease of the paper to apply greater pressure to the long side fold of the paper; the rotating suction cup 3 then... The paper is adsorbed and moved horizontally to the right along the track 33 under the drive of the displacement drive device 34. The paper is placed on the short side pressure table 20 of the automatic pre-folding device on the right. The paper is pressed tightly against the short side pre-pressure baffle 2. The short side suction cup 21 adsorbs the paper, and the short side flipping device 22 flips the paper with the short side suction cup 21 as the axis. Driven by the short side pressure roller drive device 26 and driven by the short side pressure roller cylinder 25, the short side pressure roller 23 rolls back and forth on the short side pressure table 20 at the crease of the paper to apply greater pressure to the short side fold of the paper. The above process is automatic.
[0040] Automatic flipping and ultrasonic welding are automatically completed by a device suitable for automatic flipping and ultrasonic welding of greaseproof cigarette boxes; such as... Figures 10-11As shown, it includes: a suction cup positioning block 41; a core block 42; an ultrasonic generator 43; and a vertical moving mechanism 49. The suction cup positioning block 41 is positioned at the center of the forming welding device, and the core block 42 is mounted on the vertical moving mechanism 49 and located above the suction cup positioning block 41. The ultrasonic generator 43 is positioned on the side of the forming welding device, with the ultrasonic welding head 431 facing the center of the forming weld. The device also includes: a core expansion mechanism 421, a clamping device 44, and a long-side push plate 45. The device includes: a short-side push plate 46; a side-forming push plate 47 and a side-clamping mechanism 48; a core expansion mechanism 421 mounted on a core block 42; an ultrasonic generator 43 mounted on a clamping device 44; and a side-clamping mechanism 48 mounted on a vertical moving mechanism 49. The device also includes: a long-side push plate 45, a short-side push plate 46, and a side-forming push plate 47. The long-side push plate 45 can be rotated with the suction cup positioning block 41 as its axis; the short-side push plate 46 can move vertically; and the side-forming push plate 47 can move back and forth on the wide surface of the paper. The automatic flipping and ultrasonic welding process is as follows: The paper is placed on the suction cup positioning block 41, which generates suction to fix the paper; the core block 42 presses down to press the paper, at which point the core expansion mechanism 421 retracts and stops working; the long side push plate 45 flips around the suction cup positioning block 41, thereby causing the wide side of the paper to flip and fit tightly against the core block 42; the side forming push plate 47 moves to bend the narrow side of the paper at 90° to fit tightly against the core block 42; the short side push plate 46 moves upward to make the narrow side of the paper fit tightly against the core. During the upward movement of block 42, the side forming push plate 47 retracts; after the short side push plate 46 moves into position, it opens to fill the internal cavity of the paper; the side clamping mechanism 48 clamps the upper end of the formed cigarette box, and the short side push plate 46 moves downward and retracts; under the control of the clamping device 44, the ultrasonic generator 43's ultrasonic welding head 431 is in close contact with the narrow surface of the cigarette box; the ultrasonic generator 43 welds the narrow surface and the narrow side edge of the cigarette box through its own high-frequency vibration; the cigarette box forming welding work is completed, resulting in a completely sealed cigarette box. The welding time of the ultrasonic welding head 431 is 0.5-0.7 seconds, the welding amplitude range is 10-35μm, and the welding pressure is 0.4-0.6 MPa.
[0041] like Figures 12-13As shown, the automatic molding and ultrasonic welding of flat paper is automatically completed by an automatic molding and ultrasonic welding device suitable for insulated cigarette boxes. The device includes: an inner mold 510, a suction cup 511, a forming mold 512, a paper-taking device 513, a cigarette box holder 514, a Z-axis device 515, an X-axis device 516, and a plate 52. The X-axis device 516 is arranged horizontally on the surface of the plate 52. The Z-axis device 515 is perpendicular to the surface of the plate 52 and mounted on the X-axis device 516. The suction cup 511 is embedded in the inner mold 510, and the inner mold 510 is mounted at the bottom of the Z-axis device 515. The cigarette box holder 514 is arranged outside the plate 52 to the right of the X-axis device 516, and the paper-taking device 513 is arranged outside the plate 52 to the right of the X-axis device 516. The forming mold 512 is arranged on the left side of the paper taking device 513 at the edge of the surface of the plate 52. The device also includes: a long-side ultrasonic generator 531, a short-side ultrasonic generator 541, and an angle ultrasonic generator 551. There are two long-side ultrasonic generators 531, symmetrically arranged on the left and right sides of the surface of the plate 52; there are two short-side ultrasonic generators 541, symmetrically arranged on the front and rear sides of the surface of the plate 52; there are four angle ultrasonic generators 551, symmetrically arranged on the two diagonals of the surface of the plate 52; each long-side ultrasonic generator 531 is mounted on a long-side linkage power source 532; each short-side ultrasonic generator 541 is mounted on a short-side linkage power source 542; and each angle ultrasonic generator 551 is mounted on an angle linkage power source 552. The automatic molding and ultrasonic welding process of sheet paper is as follows: The paper taking device 513 takes the sheet cigarette box paper from the cigarette box holder 514 and places it into the forming mold 512; the X-axis device 516 moves, driving the Z-axis device 515 to move, driving the inner mold 510 to move above the forming mold 512; the Z-axis device 515 moves down, driving the inner mold 510 to press down into the forming mold 512, and the cigarette box paper is stamped from the sheet into a raised shape; the suction cup 511 generates suction, pressing the formed cigarette box tightly against the inner mold 510; the Z-axis device 515 moves up, driving the inner mold 510 to move up, and taking out the formed cigarette box; the X-axis device 516 moves, driving the Z-axis device 515 to move, driving the inner mold 510 to move to the sealed paper box. Above; Z-axis device 515 moves down, driving the formed cigarette box paper to a specified height; long side linkage power source 532 moves, driving long side ultrasonic generator 531 to adhere tightly to the long side of the cigarette box surface; long side ultrasonic generator 531 welds, thus welding the long side of the formed cigarette box together; short side linkage power source 542 moves, driving short side ultrasonic generator 541 to adhere tightly to the short side of the cigarette box surface; short side ultrasonic generator 541 welds, thus welding the short side of the formed cigarette box together; corner linkage power source 552 moves, driving corner ultrasonic generator 551 to adhere tightly to the four corner surfaces of the cigarette box; corner ultrasonic generator 551 welds, thus welding the four corners of the formed cigarette box together.The welding time for the long-side ultrasonic generator 531, the short-side ultrasonic generator 541, and the angle ultrasonic generator 551 is 0.5-0.7 seconds, the welding amplitude range is 10-35μm, and the welding pressure is 0.4-0.6 MPa.
[0042] The sealing and moisture-retaining packaging box of this invention is made entirely of paper, resulting in low cost. The entire process is automated using an automatic pre-folding device for cigarette boxes, an automatic flipping and forming device for moisture-retaining cigarette boxes, and an automatic molding and ultrasonic welding device for moisture-retaining cigarette boxes, making the manufacturing method simple. The resulting sealing and moisture-retaining packaging box has excellent sealing performance, achieving a good sealing effect without the need for additional sealing materials, saving materials and being environmentally friendly and hygienic.
[0043] The above embodiments are not intended to limit the present invention, nor is the present invention limited to the examples described above. Any changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the present invention are also within the protection scope of the present invention.
Claims
1. A sealed and moisture-retaining packaging box, characterized in that, It is rectangular in shape; it includes an outer box (61) and an inner box (62); the outer box (61) has five sealed sides: the outer front side (611), the outer rear side (612), the outer left side (613), the outer right side (614), and the outer bottom side (615), and an open upper side (616); the inner box (62) has five sealed sides: the inner rear side (622), the inner left side (623), the inner right side (624), the inner bottom side (625), and the inner top side (626), and an open front side (621); the outer box (61) and the inner box (62) are compatible.
2. The method for preparing the sealed and moisture-retaining packaging box according to claim 1, characterized in that, The outer box (61) is obtained by pre-folding flat paper, automatic flipping and forming, and ultrasonic welding; the inner box (62) is obtained by automatic molding of flat paper and ultrasonic welding.
3. The preparation method according to claim 2, characterized in that, The pre-folding of the flat paper is completed by the cigarette box automatic pre-folding device; the cigarette box automatic pre-folding device includes a long side automatic pre-folding device and a short side automatic pre-folding device, with a rotating suction cup (3) between them; the long side automatic pre-folding device includes a long side pressure table (10), a long side suction cup (11), a long side flipping device (12), a long side pressure roller (13), a long side pre-pressure baffle (14), a long side pressure roller cylinder (15), and a long side pressure roller driving device (16); wherein the long side suction cup (11) and the long side pressure roller (13) are on the long side pressure table (10), the long side flipping device (12) and the long side pressure roller (13) are arranged in sequence on the left side of the long side suction cup (11), and the long side pre-pressure baffle (14) is located above the long side suction cup (11); the long side pressure roller (13) and the long side pressure roller driving device (16) are fixedly connected; the short side automatic pre-folding device It includes a short-side pressure plate (20), a short-side suction cup (21), a short-side flipping device (22), a short-side pressure roller (23), a short-side pre-pressure baffle (24), a short-side pressure roller cylinder (25), and a short-side pressure roller drive device (26); wherein the short-side suction cup (21) and the short-side pressure roller (23) are on the short-side pressure plate (20), the short-side flipping device (22) and the short-side pressure roller (23) are arranged sequentially on the right side of the short-side suction cup (21), and the short-side pre-pressure baffle (24) is on the upper part of the short-side suction cup (21); the short-side pressure roller (23) and the short-side pressure roller drive device (26) are fixedly connected; the upper end of the rotating moving suction cup (3) has a suction cup (31), and the lower end has a rotating device (32); the rotating device (32) is arranged on a track (33) in the left and right direction; the rotating moving suction cup (3) is electrically connected to the displacement drive device (34).
4. The preparation method according to claim 2, characterized in that, The pre-folding process of the flat paper is as follows: the rotating suction cup (3) adsorbs the paper, rotates it to a suitable direction, and then moves it horizontally to the left along the track (33) under the drive of the displacement drive device (34) to a suitable position, and places the paper on the long side pressure table (10) of the automatic pre-folding device on the left. The paper is close to the long side pre-press baffle (14), the long side suction cup (11) adsorbs the paper, and the long side flipping device (12) flips it with the long side suction cup (11) as the axis. The long side pressure roller (13) rolls back and forth on the long side pressure table (10) at the crease of the paper to achieve a greater force to press the long side fold of the paper. The rotating suction cup (3) adsorbs the paper again. Driven by the displacement drive device (34), it moves horizontally to the right along the track (33) to a suitable position and places the paper on the short side pressure plate (20) of the automatic pre-folding device on the right. The paper is close to the short side pre-pressure baffle 2, the short side suction cup 21 adsorbs the paper, and the short side flipping device 22 flips the paper with the short side suction cup 21 as the axis. Driven by the short side pressure roller drive device 26 and driven by the short side pressure roller cylinder 25, the short side pressure roller 23 rolls back and forth on the short side pressure plate 20 at the crease of the paper to achieve a greater force to press the short side fold of the paper.
5. The preparation method according to claim 2, characterized in that, Automatic flipping and ultrasonic welding are automatically completed by an automatic flipping and ultrasonic welding device suitable for humidified cigarette boxes; the automatic flipping and ultrasonic welding device suitable for humidified cigarette boxes is characterized in that it includes: a suction cup positioning block (41); a core block (42); an ultrasonic generator (43); and a vertical moving mechanism (49); wherein the suction cup positioning block (41) is arranged at the center of the forming and welding device, the core block (42) is installed on the vertical moving mechanism (49) and is located above the suction cup positioning block (41); the ultrasonic generator (43) is arranged on the side of the forming and welding device, and the ultrasonic welding head (431) faces the center of the forming and welding; the device further includes: an inner... The device includes a core expansion mechanism (421), a clamping device (44), a long-side push plate (45), a short-side push plate (46); a side-forming push plate (47) and a side-clamping mechanism (48); the core expansion mechanism (421) is mounted on the core block (42); an ultrasonic generator (43) is mounted on the clamping device (44); the side-clamping mechanism (48) is mounted on the up-down moving mechanism (49); the device also includes a long-side push plate (45), a short-side push plate (46) and a side-forming push plate (47); the long-side push plate (45) can be rotated with the suction cup positioning block (41) as the axis; the short-side push plate (46) can move up and down; the side-forming push plate (47) can move back and forth on the wide surface of the paper.
6. The preparation method according to claim 5, characterized in that, The automatic flipping and ultrasonic welding process is as follows: The paper is placed on the suction cup positioning block (41), and the suction cup positioning block (41) generates suction to fix the paper; the core block (42) presses down to press the paper, and at this time the core expansion mechanism (421) retracts and does not work; the long side push plate (45) flips around the suction cup positioning block (41) as the axis, thereby causing the wide side of the paper to flip and stick to the core block (42); the side forming push plate (47) moves to make the narrow side of the paper bend 90° and stick to the core block (42); the short side push plate (46) moves up to make the narrow side of the paper stick to the core. During the upward movement of block (42), the side forming push plate (47) retracts; after the short side push plate (46) moves to the upper position, the short side push plate (46) opens and fills the internal cavity of the paper; the side clamping mechanism (48) clamps the upper end of the formed cigarette box, and the short side push plate (46) moves down and withdraws; under the control of the clamping device (44), the ultrasonic generator (43) makes the ultrasonic welding head (431) stick tightly to the narrow side of the cigarette box; the ultrasonic generator (43) welds the narrow side of the cigarette box and the narrow side edge of the side through its own high-frequency vibration; the cigarette box forming welding work is completed, and a completely sealed cigarette box is obtained.
7. The preparation method according to claim 6, characterized in that, The ultrasonic welding head (431) has a welding time of 0.5-0.7 seconds, a welding amplitude range of 10-30μm, and a welding pressure of 0.4-0.6 MPa.
8. The preparation method according to claim 2, characterized in that, The automatic molding and ultrasonic welding of flat paper is automatically completed by an automatic molding and ultrasonic welding device suitable for humidified cigarette boxes; the automatic molding and ultrasonic welding device suitable for humidified cigarette boxes includes: an inner mold (510), a suction cup (511), a molding die (512), a paper taking device (513), a cigarette box holder (514), a Z-axis device (515), an X-axis device (516), and a plate (52); the X-axis device (516) is arranged on the surface of the plate (52) in the left and right directions; the Z-axis device (515) is perpendicular to the surface of the plate (52) and is installed on the X-axis device (516); the suction cup (511) is embedded in the inner mold (510), and the inner mold (510) is installed at the bottom of the Z-axis device (515); the cigarette box holder (514) is arranged outside the plate (52) on the right side of the X-axis device (516), and the paper taking device (513) is arranged on the right side of the X-axis device (516). The edge of the side plate (52) surface, the forming mold (512) is arranged on the left side of the paper taking device (513); the device also includes: a long side ultrasonic generator (531), a short side ultrasonic generator (541), and an angle ultrasonic generator (551); wherein there are two long side ultrasonic generators (531), symmetrically arranged on the left and right sides of the plate (52) surface; there are two short side ultrasonic generators (541), symmetrically arranged on the front and rear sides of the plate (52) surface; there are four angle ultrasonic generators (551), symmetrically arranged on the two diagonals of the plate (52) surface; each long side ultrasonic generator (531) is mounted on a long side linkage power source (532); each short side ultrasonic generator (541) is mounted on a short side linkage power source (542); each angle ultrasonic generator (551) is mounted on an angle linkage power source (552).
9. The preparation method according to claim 8, characterized in that, The automatic molding and ultrasonic welding process of flat paper is as follows: The paper taking device (513) takes the flat cigarette box paper from the cigarette box holder (514) and puts it into the forming mold (512); the X-axis device (516) moves, driving the Z-axis device (515) to move, driving the inner mold (510) to move above the forming mold (512); the Z-axis device (515) moves down, driving the inner mold (510) to press down into the forming mold (512), and the cigarette box paper is punched from the flat sheet into a raised shape; the suction cup (511) generates suction force, pressing the formed cigarette box tightly against the inner mold (510); the Z-axis device (515) moves up, driving the inner mold (510) to move up, and taking out the formed cigarette box; the X-axis device (516) moves, driving the Z-axis device (515) to move, driving the inner mold (510) to move. Move to the top of the sealed paper box; the Z-axis device (515) moves down, driving the formed cigarette box paper to the specified height; the long side linkage power source (532) moves, driving the long side ultrasonic generator (531) to stick to the long side of the cigarette box surface; the long side ultrasonic generator (531) welds, thereby welding the long side of the formed cigarette box together; the short side linkage power source (542) moves, driving the short side ultrasonic generator (541) to stick to the short side of the cigarette box surface; the short side ultrasonic generator (541) welds, thereby welding the short side of the formed cigarette box together; the corner linkage power source (552) moves, driving the corner ultrasonic generator (551) to stick to the four corner surfaces of the cigarette box; the corner ultrasonic generator (551) welds, thereby welding the four corners of the formed cigarette box together.
10. The preparation method according to claim 9, characterized in that, The welding time for the long-side ultrasonic generator (531), the short-side ultrasonic generator (541), and the angle ultrasonic generator (551) is 0.5-0.7 seconds, the welding amplitude range is 10-35 μm, and the welding pressure is 0.4-0.6 MPa.