A method and device for online sealing of packaging boxes

Abstract

The application discloses a kind of packing box online closing method and packing device, packing box is conveyed on the carrier of conveying mechanism, steps: packing box is conveyed to tongue folding mechanism, and first tongue of packing box is bent by tongue folding mechanism;Packing box is conveyed to cover pressing mechanism, and cover plate is bent by cover pressing mechanism;Packing box is conveyed to packing assembly, second tongue is bent, then drives second tongue to be inserted tongue position, second tongue is further bent by packing assembly, second tongue is inserted into packing box by packing assembly, and packing box closing is completed;Device includes conveying mechanism, and folding mechanism, cover pressing mechanism and packing assembly are sequentially provided in the direction of packing box conveying;Tongue folding mechanism is used for bending first tongue of packing box, and cover pressing mechanism is used for bending cover plate of packing box;Packing assembly is used for sequentially bending second tongue, driving second tongue to be inserted tongue position, second tongue is further bent and inserted into packing box, and packing box closing is completed;Efficiency is high in the application;Space occupation is smaller.

Description

Technical Field

[0001] This invention relates to the field of packaging box technology, and in particular to an online sealing method and sealing device for packaging boxes. Background Technology

[0002] Packaging machines are a type of packaging machinery, including automatic cartoning machines and pharmaceutical cartoning machines. Automatic cartoning machines automatically pack medicine bottles, blister packs, ointments, and instructions into folding cartons and close them. Some more advanced automatic cartoning machines also have additional functions such as affixing sealing labels or performing heat shrink wrapping.

[0003] After the instruction manual is placed into the cardboard box, it needs to be folded and locked. Because these actions are relatively complex, to ensure efficiency, a robotic arm is typically used to pick up the cardboard box and move it to a transfer station for flap folding before sealing. This requires the use of multiple robotic arms and a central flap folding mechanism. Adding a transfer station increases space requirements and also increases production costs.

[0004] Existing technology, such as a one-stop static box-closing device with patent number ZL201920174338.7, involves the following steps: Paper box material A is placed on the loading station; a limiting push plate is pushed out to a designated position to prevent the paper box material from moving towards the front during the closing action; a support bar extends to the top of the lower packaging box of the paper box material; a pressing push plate moves horizontally forward to press the originally vertically upward paper box top cover forward until the paper box top cover is pressed against the support bar; then, a folding pressure plate presses down in conjunction with the support bar to bend the front end of the paper box top cover to form an insert; a suction cup extends to hold the front end of the paper box and pulls it outward (to facilitate the insertion of the insert); the support bar retracts away from the area above the lower packaging box of the paper box material; and the closing pressure plate descends to press down the paper box top cover, allowing the insert to be inserted into the lower packaging box of the paper box material, completing the entire box-closing action. It is known that the existing sealing methods are all completed at the same station, requiring six actions to be completed in sequence: the support bar moves to the top of the packaging box, the pressing plate bends the top cover, the folding plate works with the support bar to form an insert at the front of the top cover, the suction cup pulls the front of the box outward, the support bar retracts, and the closing plate presses down on the top cover. The packaging box stays at this station for a long time, resulting in low overall efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide an online sealing method for packaging boxes, which solves the problem of low efficiency in existing packaging box sealing methods.

[0006] This invention is implemented as follows: an online sealing method for packaging boxes, wherein the packaging boxes are conveyed on a carrier of a conveying mechanism, and the online sealing steps are as follows:

[0007] Step 1: The packaging box is conveyed to the folding mechanism, which folds the first flap of the packaging box.

[0008] Step 2: The packaging box is conveyed to the capping mechanism, which bends the lid of the packaging box.

[0009] Step 3: The packaging box is conveyed to the sealing component. The sealing component bends the second tongue of the packaging box and then moves the second tongue to the position where the tongue is to be inserted. The sealing component bends the second tongue further and inserts the second tongue into the packaging box to complete the sealing of the packaging box.

[0010] In this invention, the packaging box, on a carrier, passes sequentially through a flap folding mechanism, a capping mechanism, and a sealing assembly via a conveying mechanism. Compared to the prior art, where all actions are completed at a single station, this invention is faster and more efficient. However, this invention does not simply separate the multiple actions of the prior art into different mechanisms. In the prior art, subsequent sealing actions require the opening of the crossbar based on the first action. If the multiple actions are simply separated, the subsequent actions cannot be completed. Therefore, the actions of the sealing assembly in this invention are different from those in the prior art.

[0011] In existing box-sealing methods, the support bar remains pressed against the top of the packaging box during the flap folding process. When the pressure plate bends the cover plate, it continues until the cover plate presses against the support bar. Then, the flap folding pressure plate and the support bar work together to bend the second flap into an insert. The support bar is indispensable during both the cover and second flap bending processes. Before sealing, the support bar needs to move to the top of the packaging box, and then it needs to be removed. As we know from the background technology, the sealing process requires six steps at one station, which is time-consuming and inefficient. In contrast, in this invention, the bending of the first flap and the cover plate each involve only one action, which can be completed on a continuously moving conveyor mechanism without stopping. The sealing assembly, however, requires a stop. The sealing assembly operates in four steps: bending the second flap, moving the second flap to the insert position, further bending the second flap, and inserting the second flap into the packaging box. This is fewer than existing technologies, resulting in higher efficiency.

[0012] In addition, the packaging box in this application does not require changing the conveyor mechanism when it is closed, and all packaging actions are completed on one conveyor mechanism, thus taking up less space.

[0013] A further technical solution of the present invention is as follows: In step three, the sealing assembly bends the second tongue toward the outside of the packaging box, then moves the second tongue to the position to be inserted, the sealing assembly further bends the second tongue, and the sealing assembly cover plate inserts the second tongue into the packaging box to complete the sealing of the packaging box.

[0014] After the capping mechanism bends the cover plate, it enters the sealing assembly. Once inside the sealing assembly, the sealing assembly bends the second tongue towards the outside of the packaging box. The second tongue is bent using the corners of two adjacent sides of the packaging box, thus achieving the positioning of the bent second tongue. This eliminates the need for the support bar action in the prior art, reducing time consumption.

[0015] A further technical solution of the present invention is as follows: the packaging box is conveyed to the sealing assembly, the sealing assembly bends the second tongue of the packaging box, and then moves the second tongue to the position to be inserted. The sealing assembly further bends the second tongue toward the inside of the packaging box, and the sealing assembly cover plate inserts the second tongue into the packaging box to complete the sealing of the packaging box.

[0016] After the second tongue is positioned to be inserted, it is now placed at the opening of the packaging box, but facing outwards. Figure 9 As shown in C; in order for the second tongue to be inserted smoothly into the packaging box, the second tongue is further bent so that it faces the inside of the packaging box, ensuring that the subsequent tongue insertion can be completed smoothly.

[0017] A further technical solution of the present invention is that the insertion tongue is located at the opening of the packaging box.

[0018] After the second tongue completes its first bend, it adheres to the outside of the packaging box. Then, the sealing assembly moves the second tongue to the opening of the packaging box, as shown below. Figure 9 As shown in C; because the second tongue needs to be inserted into the packaging box through the opening, placing the second tongue at the opening of the packaging box facilitates the later insertion of the tongue.

[0019] A further technical solution of the present invention is: the pre-pressing cover plate of the sealing assembly bends the second tongue of the packaging box, and then drives the second tongue to the position to be inserted. The sealing assembly further bends the second tongue, and the sealing assembly then presses the cover plate to insert the second tongue into the packaging box, thus completing the sealing of the packaging box.

[0020] The pre-pressing cover plate of the sealing assembly bends the second tongue, ensuring that the cover plate will not shift when the second tongue is bent, thus ensuring the smooth bending of the second tongue. After the second tongue is moved to the position to be inserted, it is bent further. At this time, the second tongue is facing the inside of the packaging box. Only one pressing action is needed to insert the second tongue into the packaging box. The pressing action here is the sealing assembly pressing the cover plate again to complete the insertion of the second tongue into the packaging box.

[0021] The present invention also provides a packaging box sealing device, comprising:

[0022] The conveying mechanism, along the conveying direction of the packaging box, is sequentially equipped with a flap folding mechanism, a capping mechanism, and a sealing assembly.

[0023] The flap-folding mechanism is used to bend the first flap of the packaging box, and the capping mechanism is used to bend the cover plate of the packaging box.

[0024] The sealing assembly is used to sequentially bend the second tongue, move the second tongue to the position where the tongue is to be inserted, bend the second tongue further, and insert the second tongue into the packaging box to complete the sealing of the packaging box.

[0025] The flap folding mechanism, the capping mechanism, and the sealing assembly are arranged sequentially along the conveying direction of the conveying mechanism. The packaging box placed on the conveying mechanism passes through the flap folding mechanism, the capping mechanism, and the sealing assembly in sequence, solving the problem of long time consumption caused by the sealing action being completed in one station. However, this invention is not simply a matter of completing multiple actions of the prior art through different mechanisms. In the prior art, subsequent sealing actions require the opening of the crossbar based on the first action. If multiple actions are simply separated, the subsequent actions cannot be completed. Therefore, the action of the sealing assembly in this invention is different from that of the prior art, and the corresponding device is also different, which can solve the problem of how to improve the efficiency of sealing packaging boxes.

[0026] A further technical solution of the present invention is: the sealing assembly includes a movable flap hook mechanism and a pusher mechanism, wherein the flap hook mechanism includes a flap portion and a hook portion.

[0027] The tongue-folding and hooking mechanism is used to bend the second tongue and hook it at the same time. When the tongue-folding and hooking mechanism is active, it can drive the second tongue to move towards the opening of the packaging box, completing the action of bending the second tongue and driving the second tongue to the position to be inserted.

[0028] A further technical solution of the present invention is: the tongue-pushing mechanism includes a second drive and a tongue-pushing plate, the tongue-pushing plate being placed at the output end of the second drive for pushing the second tongue toward the inside of the packaging box.

[0029] The second drive activates the pusher plate, which pushes the second tongue toward the inside of the packaging box, ensuring that the second tongue can be smoothly inserted into the inside of the packaging box.

[0030] A further technical solution of the present invention is: the capping mechanism includes a first drive and a guide rod placed at the output end of the first drive, the guide rod being used to bend the cover of the packaging box.

[0031] The first drive moves the guide rod, which bends the cover of the packaging box during the movement, so that the cover fits against the opening of the packaging box.

[0032] A further technical solution of the present invention is: the flap mechanism includes a guide and a flap, the flap being movable for flapping the first flap on one side of the packaging box, and the guide being fixedly configured for flapping the first flap on the other side of the packaging box.

[0033] The packaging box plays a role in the conveying mechanism. The first tongue on one side is bent by the rotating folding tongue component. The first tongue on the other side is bent when it passes the guide component. Thus, the first tongue of the packaging box that has passed through the folding tongue mechanism completes the folding tongue and enters the capping mechanism.

[0034] The beneficial effects of this invention are as follows: In this invention, the packaging box passes through the flap mechanism, the capping mechanism, and the sealing assembly sequentially on the carrier via a conveying mechanism. Compared with the prior art, all actions are completed at one station, making this invention faster and more efficient. However, this invention does not simply separate the multiple actions of the prior art into different mechanisms. In the prior art, subsequent sealing actions require the opening of the crossbar based on the first action. If multiple actions are simply separated, subsequent actions cannot be completed. Therefore, the actions of the sealing assembly in this invention are different from those in the prior art.

[0035] In existing box-sealing methods, the support bar remains pressed against the top of the packaging box during the flap folding process. When the pressure plate bends the cover plate, it continues until the cover plate presses against the support bar. Then, the flap folding pressure plate and the support bar work together to bend the second flap into an insert. The support bar is indispensable during both the cover and second flap bending processes. Before sealing, the support bar needs to move to the top of the packaging box, and then it needs to be removed. As we know from the background technology, the sealing process requires six steps at one station, which is time-consuming and inefficient. In contrast, in this invention, the bending of the first flap and the cover plate each involve only one action, which can be completed on a continuously moving conveyor mechanism without stopping. The sealing assembly, however, requires a stop. The sealing assembly operates in four steps: bending the second flap, moving the second flap to the insert position, further bending the second flap, and inserting the second flap into the packaging box. This is fewer than existing technologies, resulting in higher efficiency. Attached Figure Description

[0036] Figure 1 This is a flowchart of an online sealing method for packaging boxes provided by the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of a packaging machine provided by the present invention;

[0038] Figure 3 This is an enlarged view of point A provided by the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of a packaging box sealing device provided by the present invention;

[0040] Figure 5 This is a structural schematic diagram of a packaging box sealing device provided by the present invention from another perspective;

[0041] Figure 6 This is a schematic diagram of the folding hook mechanism provided by the present invention;

[0042] Figure 7 This is a schematic diagram of the folding and hooking mechanism provided by the present invention from another perspective;

[0043] Figure 8 This is an unfolded schematic diagram of the packaging box provided by the present invention;

[0044] Figure 9 This is a diagram showing the changing states of the online sealing of the packaging box provided by the present invention.

[0045] Reference numerals: 0. Instruction manual boxing station, 1. Packaging box, 11. First tongue, 12. Second tongue, 14. Cover plate, 2. Folding tongue mechanism, 21. Guide component, 22. Folding tongue component, 3. Covering mechanism, 31. First drive, 32. Guide pressure rod, 4. Folding tongue hook mechanism, 41. Folding tongue part, 42. Hook part, 43. Avoidance part, 44. Suction part, 5. Pushing tongue mechanism, 51. Second drive, 52. Pushing tongue plate, 6. Conveying mechanism, 61. Magnetic levitation conveyor line, 62. Carrier, 7. Discharge station, 8. Packaging box forming station, 9. Inner liner boxing station, 10. Product boxing station. Detailed Implementation

[0046] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0047] It should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention.

[0048] Example 1:

[0049] Figure 1 , Figure 3-9 A method for online sealing of packaging boxes is shown, wherein the packaging boxes are conveyed on a carrier 62 of a conveying mechanism 6, and the online sealing steps are as follows:

[0050] Step 1: The packaging box is conveyed to the folding mechanism 2, which folds the first tongue 11 of the packaging box.

[0051] Step 2: The packaging box is conveyed to the capping mechanism 3, which bends the cover plate 14 of the packaging box.

[0052] Step 3: The packaging box is conveyed to the sealing component. The sealing component bends the second tongue 12 of the packaging box and then moves the second tongue 12 to the position to be inserted. The sealing component bends the second tongue 12 further and inserts the second tongue 12 into the packaging box to complete the sealing of the packaging box.

[0053] In this invention, the packaging box, on carrier 62, passes sequentially through a flap mechanism, a capping mechanism, and a sealing assembly via a conveying mechanism. Compared to the prior art, where all actions are completed at a single station, this invention is faster and more efficient. However, this invention does not simply separate the multiple actions of the prior art into different mechanisms. In the prior art, subsequent sealing actions require the opening of the crossbar based on the first action. If multiple actions are simply separated, subsequent actions cannot be completed. Therefore, the actions of the sealing assembly in this invention are different from those in the prior art.

[0054] In existing box-sealing methods, the support bar remains pressed against the top of the packaging box during the flap folding process. When the pressure plate bends the cover plate, it continues until the cover plate presses against the support bar. Then, the flap folding pressure plate and the support bar work together to bend the second flap into an insert. The support bar is indispensable during both the cover and second flap bending processes. Before sealing, the support bar needs to move to the top of the packaging box, and then it needs to be removed. As we know from the background technology, the sealing process requires six steps at one station, which is time-consuming and inefficient. In contrast, in this invention, the bending of the first flap and the cover plate each involve only one action, which can be completed on a continuously moving conveyor mechanism without stopping. The sealing assembly, however, requires a stop. The sealing assembly operates in four steps: bending the second flap, moving the second flap to the insert position, further bending the second flap, and inserting the second flap into the packaging box. This is fewer than existing technologies, resulting in higher efficiency.

[0055] In addition, the packaging box in this application does not require changing the conveyor mechanism when it is closed, and all packaging actions are completed on one conveyor mechanism, thus taking up less space.

[0056] In this embodiment, in step three, the sealing assembly bends the second tongue 12 toward the outside of the packaging box, then moves the second tongue 12 to the position to be inserted, the sealing assembly further bends the second tongue 12, and the sealing assembly cover plate 14 inserts the second tongue 12 into the packaging box to complete the sealing of the packaging box.

[0057] After the capping mechanism bends the cover plate, it enters the sealing assembly. Once inside the sealing assembly, the sealing assembly bends the second tongue towards the outside of the packaging box. The second tongue is bent using the corners of two adjacent sides of the packaging box, thus achieving the positioning of the bent second tongue. This eliminates the need for the support bar action in the prior art, reducing time consumption.

[0058] In this embodiment, after the sealing assembly bends the second tongue for the first time, the second tongue forms a 90° angle with the cover plate.

[0059] In this embodiment, the packaging box is conveyed to the sealing assembly, which bends the second tongue 12 of the packaging box and then moves the second tongue 12 to the position to be inserted. The sealing assembly further bends the second tongue 12 toward the inside of the packaging box, and the sealing assembly cover plate 14 inserts the second tongue 12 into the packaging box to complete the sealing of the packaging box.

[0060] After the second tongue is positioned to be inserted, it is now placed at the opening of the packaging box, but facing outwards. Figure 9 As shown in C; in order for the second tongue to be inserted smoothly into the packaging box, the second tongue is further bent so that it faces the inside of the packaging box, ensuring that the subsequent tongue insertion can be completed smoothly.

[0061] In this embodiment, the insertion tongue is located at the opening of the packaging box.

[0062] After the second tongue completes its first bend, it adheres to the outside of the packaging box. Then, the sealing assembly moves the second tongue to the opening of the packaging box, as shown below. Figure 9 As shown in C; because the second tongue needs to be inserted into the packaging box through the opening, placing the second tongue at the opening of the packaging box facilitates the later insertion of the tongue.

[0063] In this embodiment, the sealing assembly hooks the second tongue and lifts it upwards until the second tongue is positioned at the opening of the packaging box; as shown Figure 9 As shown in c.

[0064] In this embodiment, the sealing assembly pre-presses the cover plate 14 to bend the second tongue 12 of the packaging box, and then moves the second tongue 12 to the position to be inserted. The sealing assembly further bends the second tongue 12, and then the sealing assembly presses the cover plate 14 to insert the second tongue 12 into the packaging box, thus completing the sealing of the packaging box.

[0065] The pre-pressing cover plate of the sealing assembly bends the second tongue, ensuring that the cover plate will not shift when the second tongue is bent, thus ensuring the smooth bending of the second tongue. After the second tongue is moved to the position to be inserted, it is bent further. At this time, the second tongue is facing the inside of the packaging box. Only one pressing action is needed to insert the second tongue into the packaging box. The pressing action here is the sealing assembly pressing the cover plate again to complete the insertion of the second tongue into the packaging box.

[0066] Example 2:

[0067] like Figure 3-9 The packaging box sealing device shown includes:

[0068] The conveying mechanism 6 includes, in sequence along the conveying direction of the packaging box, a flap folding mechanism 2, a capping mechanism 3, and a sealing assembly.

[0069] The flap folding mechanism 2 is used to bend the first flap 11 of the packaging box, and the capping mechanism 3 is used to bend the cover plate 14 of the packaging box.

[0070] The sealing assembly is used to sequentially bend the second tongue 12, move the second tongue 12 to the position to be inserted, further bend the second tongue 12, and insert the second tongue 12 into the packaging box to complete the sealing of the packaging box.

[0071] The flap folding mechanism, the capping mechanism, and the sealing assembly are arranged sequentially along the conveying direction of the conveying mechanism. The packaging box placed on the conveying mechanism passes through the flap folding mechanism, the capping mechanism, and the sealing assembly in sequence, solving the problem of long time consumption caused by the sealing action being completed in one station. However, this invention is not simply a matter of completing multiple actions of the prior art through different mechanisms. In the prior art, subsequent sealing actions require the opening of the crossbar based on the first action. If multiple actions are simply separated, the subsequent actions cannot be completed. Therefore, the action of the sealing assembly in this invention is different from that of the prior art, and the corresponding device is also different, which can solve the problem of how to improve the efficiency of sealing packaging boxes.

[0072] In this embodiment, the sealing assembly includes a movable flap hook mechanism 4 and a flap pushing mechanism 5. The flap hook mechanism 4 includes a flap portion 41 and a hook portion 42.

[0073] The tongue-folding and hooking mechanism is used to bend the second tongue and hook it at the same time. When the tongue-folding and hooking mechanism is active, it can drive the second tongue to move towards the opening of the packaging box, completing the action of bending the second tongue and driving the second tongue to the position to be inserted.

[0074] In this embodiment, the flap is a right-angled structure. During the movement of the flap hook mechanism towards the packaging box, the top cover and the second flap use the right-angled side of the packaging box as the forming part. Under the action of the right-angled side of the packaging box and the right-angled flap, the second flap bends towards the outer side of the packaging box. Figure 9 As shown in b.

[0075] In this embodiment, the hook is positioned at the end of the folded tongue to hook the second tongue. The hooking action is completed simultaneously with the bending of the second tongue by the folded tongue. Figure 7 As shown.

[0076] In this embodiment, the flap hook mechanism further includes a suction part 44, which is arranged toward the cover plate 14. The suction part 44 is used to suction the cover plate 14 after the packaging box is sealed, thereby completing the removal of the packaging box.

[0077] In another embodiment, the discharge station 7 is located on one side of the conveying mechanism. The suction part 44 of the folding tongue and hook mechanism picks up the sealed packaging box and transfers it to the discharge station 7 to complete the discharge of the packaging box.

[0078] In this embodiment, the opening of the packaging box faces upward, and the folding tongue hook mechanism is positioned above the cover plate 14. When the second tongue bends for the first time, the folding tongue hook mechanism includes a first lifting drive motor. The first lifting drive motor moves downward, and the folding tongue bends the second tongue. At the same time that the second tongue completes its first bend, the hook hooks the second tongue, and the first lifting drive motor moves upward. The hook lifts the second tongue upward to the opening of the packaging box, and the tongue pushing mechanism pushes the second tongue towards the inside of the packaging box. The first lifting drive motor presses down again, and the second tongue is inserted into the packaging box to complete the locking. After the locking is completed, the suction part 44 of the folding tongue hook mechanism picks up the packaged packaging box for transfer.

[0079] In this embodiment, the output end of the first lifting drive motor is provided with a suction part 44, and one side of the output end is provided with an L-shaped folding tongue part 41. The suction part 44 also serves as a pre-pressing cover plate 14 during the first bending of the second tongue.

[0080] In this embodiment, the tongue-folding hook mechanism 4 is provided with a clearance part 43, which is used to avoid the second tongue when the tongue-pushing mechanism 5 pushes it to bend further.

[0081] In this embodiment, the tongue-pushing mechanism 5 includes a second drive 51 and a tongue-pushing plate 52. The tongue-pushing plate 52 is located at the output end of the second drive 51 and is used to push the second tongue 12 toward the inside of the packaging box.

[0082] The second drive activates the pusher plate, which pushes the second tongue toward the inside of the packaging box, ensuring that the second tongue can be smoothly inserted into the inside of the packaging box.

[0083] In this embodiment, the opening of the packaging box faces the direction of the tongue-pushing mechanism, which is located on one side of the conveying mechanism. The second drive causes the tongue-pushing plate to move horizontally, further bending the second tongue and completing the action of the second tongue moving towards the inside of the packaging box. The tongue-pushing plate pushes the second tongue towards the inside of the packaging box as it passes through the avoidance part of the tongue-folding hook mechanism.

[0084] In this embodiment, the capping mechanism 3 includes a first drive 31 and a guide rod 32 located at the output end of the first drive 31. The guide rod 32 is used to bend the cover plate 14 of the packaging box.

[0085] The first drive drives the guide rod to move. During the movement, the guide rod bends the cover plate 14 of the packaging box, so that the cover plate 14 fits against the opening of the packaging box.

[0086] In this embodiment, the opening of the packaging box faces the same direction. The first drive moves the guide rod horizontally, and the cover plate 14 bends under the action of the guide rod until it fits against the opening of the packaging box; as shown... Figure 9 As shown in a.

[0087] In this embodiment, the flap mechanism 2 includes a guide 21 and a flap 22. The flap 22 is movable for flapping the first flap 11 on one side of the packaging box, and the guide 21 is fixedly configured for flapping the first flap 11 on the other side of the packaging box.

[0088] The packaging box plays a role in the conveying mechanism. The first tongue on one side is bent by the rotating folding tongue component. The first tongue on the other side is bent when it passes the guide component. Thus, the first tongue of the packaging box that has passed through the folding tongue mechanism completes the folding tongue and enters the capping mechanism.

[0089] In this embodiment, the conveying mechanism 6 includes a magnetic levitation conveyor line 61 and a carrier 62 placed on the magnetic levitation conveyor line 61.

[0090] Example 3:

[0091] like Figure 2 As shown; a packaging machine includes a conveying mechanism 6, and is provided sequentially along the conveying direction of the packaging box: a packaging box forming station 8, an inner liner box insertion station 9, a product box insertion station 10, an instruction manual box insertion station 0, and the sealing device described in Embodiment 2.

[0092] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method of on-line closing of a carton, characterized in that The packaging box is conveyed on the carrier (62) of the conveying mechanism (6), and the online closing method steps are as follows: Step one, the packaging box is conveyed to the tongue folding mechanism (2), and the first tongue (11) of the packaging box is folded by the tongue folding mechanism (2); Step two, the packaging box is conveyed to the cover pressing mechanism (3), and the cover plate (14) of the packaging box is folded by the cover pressing mechanism (3); Step three, the packaging box is conveyed to the box closing assembly, the second tongue (12) of the packaging box is folded by the box closing assembly, then the second tongue (12) is driven to the position to be inserted, the second tongue (12) is further folded by the box closing assembly, the second tongue (12) is inserted into the packaging box by the box closing assembly, and the closing of the packaging box is completed.

2. A method of on-line closing of a carton according to claim 1, characterized in that In the step three, the second tongue (12) is folded by the box closing assembly towards the direction of the outer side of the packaging box, then the second tongue (12) is driven to the position to be inserted, the second tongue (12) is further folded by the box closing assembly, the second tongue (12) is inserted into the packaging box by the cover plate (14) of the box closing assembly, and the closing of the packaging box is completed.

3. A method of on-line closing of a carton according to claim 2, characterized in that, The packaging box is conveyed to the box closing assembly, the second tongue (12) of the packaging box is folded by the box closing assembly, then the second tongue (12) is driven to the position to be inserted, the second tongue (12) is further folded by the box closing assembly towards the direction of the inner side of the packaging box, the second tongue (12) is inserted into the packaging box by the cover plate (14) of the box closing assembly, and the closing of the packaging box is completed.

4. A method of on-line closing of a carton according to claim 1, characterized in that, The position to be inserted is the opening of the packaging box.

5. A method of on-line closing of a carton according to claim 1 or 2, characterized in that, The second tongue (12) of the packaging box is folded by the pre-pressing cover plate (14) of the box closing assembly, then the second tongue (12) is driven to the position to be inserted, the second tongue (12) is further folded by the box closing assembly, the second tongue (12) is inserted into the packaging box by the cover plate (14) of the box closing assembly again, and the closing of the packaging box is completed.

6. A package closure device characterized by It comprises: The conveying mechanism (6) is sequentially provided with the tongue folding mechanism (2), the cover pressing mechanism (3) and the box closing assembly in the conveying direction of the packaging box, The tongue folding mechanism (2) is used for folding the first tongue (11) of the packaging box, and the cover pressing mechanism (3) is used for folding the cover plate (14) of the packaging box; The box closing assembly is used for sequentially folding the second tongue (12), driving the second tongue (12) to the position to be inserted, further folding the second tongue (12) and inserting the second tongue (12) into the packaging box, and completing the closing of the packaging box.

7. A pack closure device according to claim 6, wherein The box closing assembly comprises the movable tongue folding hook mechanism (4) and the tongue pushing mechanism (5), the tongue folding hook mechanism (4) comprises the tongue folding part (41) and the hook part (42).

8. A pack closure device according to claim 7, wherein The tongue pushing mechanism (5) comprises the second drive (51) and the tongue pushing plate (52), and the tongue pushing plate (52) is arranged on the output end of the second drive (51) and used for pushing the second tongue (12) towards the inner side of the packaging box.

9. A packaging closure according to claim 6, wherein The cover pressing mechanism (3) comprises the first drive (31) and the guide pressing rod (32) arranged on the output end of the first drive (31), and the guide pressing rod (32) is used for folding the cover plate (14) of the packaging box.

10. A packaging closure according to claim 6, wherein The tongue folding mechanism (2) comprises the guide part (21) and the tongue folding part (22), the tongue folding part (22) is movable and used for folding the first tongue (11) on one side of the packaging box, and the guide part (21) is fixedly arranged and used for folding the first tongue (11) on the other side of the packaging box.

Images