Packaging box packaging equipment

Abstract

The utility model relates to the technical field of packaging machinery, and particularly discloses packaging equipment for a packaging box. Comprising a conveying part and a packaging part. A limiting conveying mechanism is arranged on a conveying frame of the conveying part, a first limiting part and a second limiting part of the limiting conveying mechanism are connected with a positive and negative thread screw rod through a first thread block and a second thread block, the width of the conveying space can be adjusted, the two ends of the limiting parts are connected with a sliding rod and the thread screw rod through sliding blocks, and a driving piece drives the thread screw rod to rotate to achieve adjustment; the conveying frame comprises a first support, a second support and a conveying roller. The packaging part is arranged at the top of the conveying frame and comprises a first roller for providing a packaging adhesive tape and a second roller for adhering the adhesive tape; the top of the conveying part is provided with a sealing part through a supporting frame, the sealing part comprises first, second and third sealing parts used for pressing the inlet / outlet end and box covers on the two sides of the packaging box, the first sealing part is provided with an inclined first pressing surface and a planar second pressing surface, the second sealing part drives a pressing arm and a pressing rod through an air cylinder, and the third sealing part drives a second pressing rod through inclined air cylinder sets on the two sides.

Description

Technical Field

[0001] This utility model relates to the field of packaging machinery technology, and in particular to a packaging box sealing device. Background Technology

[0002] In the packaging industry, packaging box sealing equipment is a key piece of equipment for ensuring the integrity and protection of product packaging. With the increasing market demand for diversified product packaging, packaging box sizes and specifications are showing a wide range of variations, posing a stringent challenge to the adaptability of sealing equipment.

[0003] Traditional packaging box sealing equipment has significant defects in the conveying process. Taking the "Carton Packaging Machine Carton Top Face Sealing Device" disclosed in Chinese Patent Document CN219192739U as an example, its conveying mechanism uses a fixed-width conveyor belt and frame structure. This fixed conveying space design can only accommodate packaging boxes within a specific size range. If the width of the packaging box exceeds or falls below the preset size, numerous problems arise. On the one hand, for excessively narrow packaging boxes, they are prone to swaying left and right during conveying, making it difficult to maintain a stable conveying posture. When the equipment performs subsequent sealing operations, such as tape application and sealing, the unstable position of the packaging box leads to sealing position deviations, severely affecting sealing quality and potentially causing the packaging box to tip over during conveying, interrupting the production process. On the other hand, if the packaging box is too wide, it cannot enter the conveying space at all, making it impossible for the equipment to perform sealing operations, greatly limiting the equipment's applicability and reducing its versatility and practicality. In actual production, companies often need to handle packaging boxes of various sizes. To meet this demand, they have to purchase multiple packaging equipment of different specifications or frequently carry out complex and time-consuming mechanical modifications to existing equipment. This undoubtedly increases production costs and equipment maintenance difficulty, and seriously restricts the improvement of production efficiency.

[0004] Furthermore, the fixed conveyor space can also damage the packaging box itself. Due to the mismatch between the conveyor space and the box size, the box may experience hard friction or collision with the edges and limiting components of the conveyor equipment during transport. For example, the corners of the box may wear and deform due to friction, which not only affects the appearance integrity of the box but may also weaken its protective performance for the internal products, increasing the risk of product damage during subsequent transportation and storage. For some boxes with special printing or coatings on the surface, this friction damage may also lead to blurred printing patterns and coating peeling, reducing the overall aesthetics and market competitiveness of the product. Utility Model Content

[0005] In view of this, the present invention provides a packaging box sealing device to solve the problem that the conveying space of traditional sealing equipment is fixed, which cannot be compatible with packaging boxes of different widths, resulting in low equipment versatility and the possibility of packaging boxes jamming or being damaged due to size mismatch.

[0006] This utility model provides a packaging box sealing device, including: a conveying unit, including a conveying frame and a limiting conveying mechanism disposed on the conveying frame, the limiting conveying mechanism being adjustable in limiting size on the conveying frame; a sealing unit, disposed on top of the conveying frame via the conveying frame; the sealing unit includes a first roller for providing sealing tape and a second roller for attaching the sealing tape to the conveying packaging box; wherein, the limiting conveying mechanism includes a first limiting part and a second limiting part, a conveying space is provided between the first limiting part and the second limiting part; both the first limiting part and the second limiting part are provided with conveyor belts; wherein, the first limiting part and the second limiting part are respectively connected to a screw with both positive and negative threads via a first threaded block and a second threaded block, so as to increase or decrease the width of the conveying space.

[0007] Preferably, the conveyor frame includes a first support and a second support, and a plurality of conveying rollers disposed between the first support and the second support; the conveying rollers are connected in a transmission manner to each other.

[0008] Preferably, the limiting conveying mechanism further includes a slide rod disposed between the first bracket and the second bracket; the two ends of the first limiting part are respectively connected to the slide rod and the threaded screw via a first slider and a first threaded block; the two ends of the second limiting part are respectively connected to the slide rod and the threaded screw via a second slider and a second threaded block.

[0009] Preferably, the threaded screw is further connected to a driving member outside the first bracket and / or the second bracket. By driving the driving member to rotate the threaded screw, the width of the conveying space between the first limiting part and the second limiting part can be adjusted.

[0010] Preferably, the conveying section is further provided with a sealing section at the top via a support frame; the sealing section includes a first sealing component, a second sealing component, and a third sealing component; the first sealing component is used to connect the lid of the inlet end of the packaging box to the box body; the second sealing component is used to connect the lid of the end end of the packaging box to the box body; and the third sealing component is used to connect the lids on both sides of the packaging box to the box body.

[0011] Preferably, the first sealing member has an inclined first pressing surface and a second pressing surface that is combined with the second pressing surface; the second pressing surface is a planar pressing surface; and a transition rounded corner is formed at the junction of the first pressing surface and the second pressing surface.

[0012] Preferably, the second sealing component is provided with a pressure arm and a first pressure rod at the end of the pressure arm; the first pressure rod is provided with pressure rollers at both ends, and the pressure arm is hinged to a cylinder; the pressure arm, through the extension of the cylinder piston rod, causes the first pressure rod to combine the box cover at the end of the packaging box with the box body.

[0013] Preferably, the third sealing component includes an inclined cylinder assembly and a second pressure rod disposed at the end of the cylinder assembly; a set of the third sealing components is respectively provided on both sides of the support frame.

[0014] Preferably, the support frame is further provided with a mounting frame, on which the first sealing component, the second sealing component, and the third sealing component are all mounted.

[0015] Preferably, the mounting frame is also provided with several elastic auxiliary wheels on both sides to assist in the movement of the packaging box.

[0016] The packaging box sealing device provided by this utility model has the following beneficial effects:

[0017] In this invention, by utilizing the cooperation of the positive and negative threaded screw with the first and second limiting parts, the width of the conveying space can be precisely adjusted through the driving component, allowing the equipment to flexibly adapt to packaging boxes of different widths, thus improving versatility compared to traditional fixed conveying structures. When conveying packaging boxes of different specifications, the limiting conveying mechanism guides the boxes through the conveyor belt and slide bar, ensuring that the boxes maintain a stable posture during conveying, avoiding lateral swaying or hard collisions caused by size mismatch, controlling the conveying offset of the packaging boxes, and reducing the damage rate. This adjustable design not only eliminates the need for production changeovers due to equipment specification limitations, but also saves the maintenance work of frequently replacing conveying components required by traditional equipment, shortening the production changeover time for multi-specification packaging boxes, significantly improving equipment utilization efficiency, and reducing enterprise equipment purchase and maintenance costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0019] Figure 1 This is a front view of a packaging box sealing device;

[0020] Figure 2 This is a side view of a packaging box sealing device;

[0021] Figure 3 This is a partial structural diagram of a packaging box sealing device;

[0022] Figure 4 This is another partial structural diagram of a packaging box sealing device;

[0023] Figure 5 This is a structural diagram of the packaging section;

[0024] Figure 6 This is another partial structural diagram of a packaging box sealing device;

[0025] Parts and component numbers in the diagram:

[0026] 100 - Conveying section, 110 - Conveying frame, 111 - First support, 112 - Second support, 113 - Conveying roller;

[0027] 210-First limiting part, 220-Second limiting part, 230-Conveying space, 241-Conveying belt, 242-First threaded block, 243-Second threaded block, 244-First slider, 245-Second slider, 246-Threaded screw, 247-Driver, 248-Slide bar;

[0028] 300-Encapsulation section, 310-Encapsulation tape, 311-First roller, 321-Second roller, 331-Tensioning roller, 332-Cutter, 333-Pressure roller;

[0029] 410-Mounting bracket, 420-First sealing component, 421-First pressing surface, 422-Second pressing surface, 430-Second sealing component, 431-Pressure arm, 432-First pressure rod, 433-Pressure wheel, 434-Cylinder, 440-Third sealing component, 441-Cylinder assembly, 442-Second pressure rod, 443-Auxiliary wheel;

[0030] 510-Support column, 511-Slide groove, 512-Screw rod, 513-Third threaded block. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.

[0032] Example 1

[0033] Please see Figure 1 This utility model provides a packaging box sealing device. Currently, common packaging box sealing mechanisms on the market are typically designed to handle only packaging boxes of specific sizes, and their conveying space is fixed. This fixed conveying space not only limits the flexibility of the sealing mechanism but may also cause some damage to the packaging box itself during use. When packaging boxes of different sizes need to be sealed, due to the mismatch between the conveying space and the packaging box size, the packaging box may experience hard friction or collision with the edges or limiting components of the conveying equipment during transport. This not only affects the sealing efficiency but may also damage the appearance and structural integrity of the packaging box.

[0034] Therefore, this embodiment provides a size-adjustable packaging device to adapt to packaging operations of boxes of different sizes.

[0035] Please see Figure 1 , Figure 2 and Figure 3The packaging equipment in this embodiment includes a conveying unit 100 and a packaging unit 300. The conveying unit 100 includes a conveying frame 110 and a limiting conveying mechanism disposed on the conveying frame 110. The limiting conveying mechanism can adjust the limiting size on the conveying frame 110. The packaging unit 300 is disposed on the top of the conveying frame 110 via the conveying frame 110. The packaging unit 300 includes a first roller 311 for providing packaging tape 310 and a second roller 32 for attaching the packaging tape 310 to the conveying packaging box. 1; wherein, the limiting conveying mechanism includes a first limiting part 210 and a second limiting part 220, and a conveying space 230 is provided between the first limiting part 210 and the second limiting part 220; both the first limiting part 210 and the second limiting part 220 are provided with a conveying belt 241; wherein, the first limiting part 210 and the second limiting part 220 are respectively connected to a lead screw 246 with both positive and negative threads through a first threaded block 242 and a second threaded block 243, so as to increase or decrease the width of the conveying space 230.

[0036] Further, please see Figure 6 A number of support columns 510 are provided between the conveyor frame 110 and the mounting frame 410. The support columns 510 are provided with a sliding groove 511 and a screw 512 that rotates in the sliding groove 511. The mounting frame 410 is connected to the screw 512 in the support columns 510 through a number of third threaded blocks 513 to realize the adjustment of the height of the packaging box.

[0037] In use, first place the packaging box in the conveying space 230. By adjusting the distance between the first limiting part 210 and the second limiting part 220, the conveyor belt 241 is made to fit tightly against both sides of the packaging box, ensuring its stability during conveying. Next, according to the height of the packaging box, rotate the screw 512 inside the support column 510 to adjust the position of the mounting bracket 410 so that the sealing part 300 can be accurately aligned with the top of the packaging box.

[0038] Subsequently, the equipment is started, causing the packaging box to move along the path formed by the conveyor section 100, the first limiting section 210, and the second limiting section 220; the lid of the packaging box is closed manually or automatically; the first roller 311 begins to supply sealing tape 310, which is then evenly applied to the opening of the packaging box by the second roller 321. Throughout the sealing process, the conveyor mechanism operates continuously, ensuring the smooth movement of the packaging box, thereby completing an efficient and precise sealing operation.

[0039] Please see Figure 5 Furthermore, the encapsulation unit 300 also includes a first roller 311 with encapsulation tape 310, a second roller 321 connected to the encapsulation tape 310, a tensioning roller 331, a cutter 332 and a pressure roller 333.

[0040] In use, the conveyor unit 100 transports the packaging box to below the sealing unit 400, where a photoelectric sensor detects that the box is in position. The lid closing component folds the top lid of the packaging box inward, forming a flat sealing surface. The tape roll of the sealing tape 310 is rotated by a motor, and the tape is pulled out through the second roller 321. The photoelectric sensor detects the position of the tape's front end and determines the conveying length based on the preset dimensions of the box. After the tape's front end reaches the designated position, the second roller 321 causes the tape to first contact the box surface, temporarily fixing the starting end of the tape. The box moves forward under the drive of the conveyor mechanism, and the tape is pulled out along with the box. Simultaneously, the pressure roller 333 descends, pressing the tape onto the top lid of the box.

[0041] The pressure roller 333 continuously rolls to ensure that the tape adheres tightly to the surface of the box, eliminating air bubbles and ensuring adhesive strength. When the box moves to the set position, so that the tape is long enough to cover the opening, the cutter 332 is activated, and the blade of the cutter 332 cuts the tape, completing one sealing cycle.

[0042] The tension roller 331 adjusts the tension of the sealing tape 310 to ensure that the tape maintains appropriate tension during the pulling and application process, effectively preventing the tape from becoming loose or overstretched, thereby improving the sealing quality. When the tape is pulled out from the first roller 311, the tension roller 331 adjusts its operating state in real time, coordinating with the actions of the second roller 321 and the pressure roller 333 to ensure the tape adheres evenly to the surface of the packaging box. Furthermore, the tension roller 331 also has a certain buffering function, reducing the impact of tape rebound on the sealing effect at the moment the cutter 332 cuts the tape, further ensuring the flatness and firmness of the seal.

[0043] Further, please see Figure 4 The conveyor frame 110 includes a first support 111 and a second support 112, and a plurality of conveying rollers 113 disposed between the first support 111 and the second support 112; the conveying rollers 113 are connected by a transmission.

[0044] The limiting conveying mechanism further includes a slide rod 248 disposed between the first support 111 and the second support 112; the two ends of the first limiting part 210 are respectively connected to the slide rod 248 and the threaded rod 246 through the first slider 244 and the first threaded block 242; the two ends of the second limiting part 220 are respectively connected to the slide rod 248 and the threaded rod 246 through the second slider 245 and the second threaded block 243.

[0045] The threaded screw 246 is also connected to a drive member 247 outside the first bracket 111 and / or the second bracket 112. By driving the drive member 247, the threaded screw 246 is rotated, thereby adjusting the width of the conveying space 230 between the first limiting part 210 and the second limiting part 220.

[0046] When the conveying width of the box needs to be adjusted, the drive component 247 drives the threaded screw 246 to rotate, causing the first threaded block 242 and the second threaded block 243 to move along the sides or middle of the threaded screw 246, thereby adjusting the distance between the first limiting part 210 and the second limiting part 220. This adjustment method is simple and precise to operate and can adapt to the needs of packaging boxes of different widths. At the same time, the design of the slide bar 248 ensures the stability of the first limiting part 210 and the second limiting part 220 during movement, avoiding the problem of uneven conveying space 230 due to offset. In addition, the transmission connection of the conveying roller 113 further enhances the operating efficiency of the conveying unit 100, ensuring that the packaging box maintains a smooth and stable movement during the conveying process, providing a reliable foundation for subsequent packaging operations.

[0047] Further, please see Figure 1 , Figure 2 and Figure 6 The conveying unit 100 is also provided with a sealing part 400 at the top via a support frame; the sealing part 400 includes a first sealing member 420, a second sealing member 430 and a third sealing member 440; the first sealing member 420 is used to connect the box cover at the inlet end of the packaging box to the box body; the second sealing member 430 is used to connect the box cover at the end of the packaging box to the box body; the third sealing member 440 is used to connect the box covers on both sides of the packaging box to the box body.

[0048] The first sealing component 420 is provided with an inclined first pressing surface 421 and a second pressing surface 422 that is combined with the second pressing surface 422; the second pressing surface 422 is a planar pressing surface; the joint between the first pressing surface 421 and the second pressing surface 422 forms a transition rounded corner.

[0049] The second sealing component 430 is provided with a pressure arm 431 and a first pressure rod 432 at the end of the pressure arm 431; the first pressure rod 432 is provided with pressure rollers 433 at both ends, and the pressure arm 431 is hinged to the cylinder 434; the pressure arm 431, through the extension of the piston rod of the cylinder 434, causes the first pressure rod 432 to combine the box cover at the end of the packaging box with the box body.

[0050] The third sealing member 440 includes an inclined cylinder assembly 441 and a second pressure rod 442 disposed at the end of the cylinder assembly 441; a set of third sealing members 440 is provided on both sides of the support frame.

[0051] The support frame is also equipped with a mounting bracket 410, on which the first sealing component 420, the second sealing component 430 and the third sealing component 440 are all installed.

[0052] In use, the packaging box gradually enters the sealing area of ​​the sealing section 400 following the conveyor 100. First, the first pressing surface 421 of the first sealing member 420 combines the box lid at the inlet end with the box body. Then, as the packaging box continues to move with the conveyor 100, the cylinder group 441 of the third sealing member 440 drives the second pressing rod 442 to move closer to the box body, so that the box lids on both sides of the packaging box combine with the box body. As the packaging box continues to move, the second pressing surface 422 stabilizes the degree of combination between the box lids on both sides of the packaging box and the box body. Then, by activating the cylinder 434, the pressing arm 431 is driven to bend, and the pressing rod and pressing roller 433 press the box lid at the end of the packaging box inward to combine it with the box body, so as to automatically complete the closing of the box lid and the box body, which facilitates the automated realization of the box lid closing and subsequent sealing operations.

[0053] This effectively improves the efficiency and quality of packaging box sealing, reduces the need for manual intervention, and thus lowers production costs. The coordinated operation of multiple sealing components ensures that the box lid fits tightly against the box body in all directions, preventing transportation or storage problems caused by incomplete sealing. Furthermore, the modular design of the equipment makes each component easy to maintain and replace, further enhancing the equipment's reliability and lifespan. The inclined pressing surface and rounded corners not only improve operational smoothness but also reduce wear on the packaging box surface, ensuring the integrity of the product's appearance. The compact and rational overall structure enables efficient sealing operations within limited space, making it ideal for the application needs of modern production lines.

[0054] Furthermore, the mounting frame 410 is also provided with several flexible auxiliary wheels 443 on both sides to assist in the movement of the packaging box. The auxiliary wheels 443 can be moved based on the mounting frame 410 to adapt to the width of the packaging box.

[0055] The auxiliary wheels 443 effectively reduce the friction between the packaging box and the mounting frame 410 during movement, thereby improving the smoothness of conveying. At the same time, the flexible design allows the auxiliary wheels 443 to adjust appropriately according to the size and shape of the packaging box, ensuring that the packaging box remains stable during conveying and preventing the sealing effect from being affected by shaking or displacement.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A packaging box sealing device, characterized in that, include: The conveying unit (100) includes a conveying frame (110) and a limiting conveying mechanism disposed on the conveying frame (110), wherein the limiting conveying mechanism can adjust the limiting size on the conveying frame (110); The packaging section (300) is disposed on the top of the conveyor frame (110) via the conveyor frame (110); the packaging section (300) includes a first roller (311) for providing packaging tape (310) and a second roller (321) for attaching the packaging tape (310) to the conveyor packaging box. The limiting conveying mechanism includes a first limiting part (210) and a second limiting part (220), and a conveying space (230) is provided between the first limiting part (210) and the second limiting part (220); a conveying belt (241) is provided on both the first limiting part (210) and the second limiting part (220). The first limiting part (210) and the second limiting part (220) are respectively connected to the positive and negative thread screw (246) through the first threaded block (242) and the second threaded block (243) to increase or decrease the width of the conveying space (230).

2. The packaging box sealing equipment according to claim 1, characterized in that, The conveyor frame (110) includes a first support (111) and a second support (112) and a plurality of conveying rollers (113) disposed between the first support (111) and the second support (112); the conveying rollers (113) are connected in a transmission manner to each other.

3. The packaging box sealing equipment according to claim 2, characterized in that, The limiting conveying mechanism also includes a slide bar (248) disposed between the first bracket (111) and the second bracket (112). The two ends of the first limiting part (210) are respectively connected to the slide rod (248) and the threaded rod (246) via the first slider (244) and the first threaded block (242); The two ends of the second limiting part (220) are respectively connected to the slide rod (248) and the threaded rod (246) via the second slider (245) and the second threaded block (243).

4. The packaging box sealing equipment according to claim 3, characterized in that, The threaded screw (246) is also connected to a drive member (247) outside the first bracket (111) and / or the second bracket (112). By driving the drive member (247) to drive the threaded screw (246) to rotate, the width of the conveying space (230) between the first limiting part (210) and the second limiting part (220) is adjusted.

5. The packaging box sealing equipment according to claim 1, characterized in that, The conveying section (100) is also provided with a sealing section (400) at the top via a support frame. The sealing part (400) includes a first sealing element (420), a second sealing element (430) and a third sealing element (440). The first sealing element (420) is used to connect the lid of the box at the inlet end of the packaging box to the box body; The second sealing element (430) is used to connect the lid at the end of the packaging box to the box body; The third sealing element (440) is used to connect the two side lids of the packaging box to the box body.

6. The packaging box sealing equipment according to claim 5, characterized in that, The first sealing member (420) is provided with an inclined first pressing surface (421) and a second pressing surface (422) that is combined with the second pressing surface (422). The second pressing surface (422) is a planar pressing surface; A transition rounded corner is formed at the junction of the first pressing surface (421) and the second pressing surface (422).

7. A packaging box sealing device according to claim 6, characterized in that, The second sealing member (430) is provided with a pressure arm (431) and a first pressure rod (432) at the end of the pressure arm (431). The first pressure rod (432) has pressure rollers (433) at both ends, and the pressure arm (431) is hinged to the cylinder (434); The pressure arm (431) extends through the piston rod of the cylinder (434) to cause the first pressure rod (432) to combine the box cover at the end of the packaging box with the box body.

8. A packaging box sealing device according to claim 6, characterized in that, The third sealing member (440) includes an inclined cylinder assembly (441) and a second pressure rod (442) disposed at the end of the cylinder assembly (441). A set of the third sealing element (440) is provided on each side of the support frame.

9. A packaging box sealing device according to claim 6, characterized in that, The support frame is also provided with a mounting frame (410), on which the first sealing member (420), the second sealing member (430) and the third sealing member (440) are all installed.

10. A packaging box sealing device according to claim 9, characterized in that, The mounting frame (410) is also provided with several elastic auxiliary wheels (443) on both sides to assist in the movement of the packaging box.

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