Handheld water-based carton sealing machine

Abstract

The utility model discloses a handheld water-based box sealing machine which comprises a main body frame and a water tank, the main body frame is provided with a containing groove matched with the water tank and a glue containing shaft used for installing a water paper adhesive tape roll, and the water tank is detachably installed in the containing groove. The main body frame is provided with a pinch roll set used for conveying a water paper adhesive tape and an adjusting part used for controlling the pinch roll set to rotate so as to achieve advancing or retreating of the water paper adhesive tape, the upper side of the discharging end of the pinch roll set is provided with a cutting knife, and the water tank is provided with a water coating part used for coating the surface of the water paper adhesive tape with water in the water tank. The handheld box sealing machine can achieve handheld box sealing of the water-soluble adhesive tape, the structure of the box sealing machine is simplified, the adhesive tape with different lengths can be selected for box sealing according to needs, meanwhile, the situation that the adhesive tape is wasted due to the fact that the adhesive tape loses viscidity is avoided, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tape packaging technology, specifically to a handheld water-based box sealing machine. Background Technology

[0002] Water-soluble tape, also known as water-based adhesive tape, is widely used in papermaking, paper processing, and printing industries for paper splicing and sealing packaging boxes. In practical applications, rolls of water-soluble tape require the bonding surfaces to be moistened with water before bonding can be completed. Therefore, this typically requires complex, large-scale equipment. However, such equipment is not only complex and expensive, but also has a relatively fixed cutting length for the water-soluble tape, making it unsuitable for situations requiring small quantities of tape for bonding. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a handheld water-based box sealing machine that enables handheld sealing of boxes using water-soluble tape. It simplifies the structure of the sealing machine, allows for the selection of tapes of different lengths for sealing as needed, and reduces production costs.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A handheld water-based carton sealing machine includes a main frame and a water tank. The main frame has a receiving groove adapted to the water tank and a gluing shaft for mounting water-based paper tape rolls. The water tank is detachably installed in the receiving groove. The main frame is equipped with a clamping roller assembly for conveying the water-based paper tape and an adjusting component for controlling the rotation of the clamping roller assembly to achieve forward or backward movement of the water-based paper tape. A cutting blade is provided on the upper side of the discharge end of the clamping roller assembly. The water tank is equipped with a water coating component for applying water from the water tank to the surface of the water-based paper tape. In use, the water-based paper tape can be directly pulled out from the discharge end of the clamping roller assembly for carton sealing and other operations. After sealing, it is cut by the cutting blade. By setting up a pinch roller assembly, the wet paper tape can be stably output, preventing it from retracting and improving the efficiency and quality of sealing. Furthermore, by setting up an adjustment mechanism to control the forward or backward movement of the wet paper tape, it can be controlled to re-wet the tape after retraction. Once wet, the tape re-extends from the discharge end of the pinch roller assembly via the adjustment mechanism, preventing the tape from losing its adhesiveness due to prolonged exposure and thus avoiding waste. This improves tape utilization and achieves cost savings.

[0006] As a preferred technical solution, the upper end of the main frame is provided with a flip-openable top cover. The clamping roller group includes an upper roller group and a lower roller group. The upper roller group is mounted on the top cover, and the lower roller group is mounted on the main frame. A conveying channel for the wet paper tape is formed between the upper roller group and the lower roller group. By mounting the upper roller group on the flip-openable top cover, the conveying channel can be opened by flipping the top cover, facilitating the wet paper tape to pass between the upper roller group and the lower roller group.

[0007] As a preferred technical solution, the upper roller group includes a first pressure roller and a second pressure roller, which are rotatably mounted on the upper cover. The lower roller group includes a first bearing roller and a second bearing roller, which are rotatably mounted on the main frame below the upper cover. The first pressure roller, the second pressure roller, the first bearing roller, and the second bearing roller are arranged parallel to each other. A first clamping space adapted to the thickness of the water-paper tape is formed between the first pressure roller and the first bearing roller. A second clamping space adapted to the thickness of the water-paper tape is formed between the second pressure roller and the second bearing roller.

[0008] As a preferred technical solution, the upper cover is provided with an upper roller frame that can be flipped with the upper cover. The first pressure roller and the second pressure roller are rotatably mounted on the upper roller frame via a first rotating shaft and a second rotating shaft, respectively. The adjusting component is an adjusting wheel, which is rotatably mounted on the upper roller frame via a third rotating shaft. The third rotating shaft controls the first pressure roller and the second pressure roller to rotate simultaneously in the same direction via a gear set. The main frame is provided with a lower roller frame, and the first pressure roller and the second pressure roller are rotatably mounted on the lower roller frame.

[0009] As a preferred technical solution, the receiving groove has an upper opening at the top and a side opening on the side. The water tank is installed in the receiving groove through the side opening. The lower roller frame is fixedly installed inside the upper opening by screws. The lower roller frame has two opposing first ear plates, and the two first ear plates have opposing first through holes. The upper opening has opposing second ear plates on both sides, corresponding to the first ear plates. The second ear plates have opposing second through holes. The upper cover has two opposing side plates. The side plates have a third through hole at the end near the receiving groove. During assembly, the two ends of the second rotating shaft pass through the first through hole, the second through hole, and the third through hole in sequence. The upper cover is hinged to the main frame through the second rotating shaft.

[0010] As a preferred technical solution, a first lever is provided on one side plate of the upper cover, and a first locking hook is provided on the first lever. A first locking block corresponding to the first locking hook is provided on one side of the lower roller frame. During operation, the first locking hook is hooked on the lower side of the first locking block so that the upper cover cannot be rotated around the second pivot.

[0011] As a preferred technical solution, the upper side of the cutter is provided with a pressure plate, the end of the upper cover near the water tank is provided with a cutter mounting position, the cutter mounting position is provided with a first fixing hole, the cutter is provided with a fourth through hole corresponding to the first fixing hole, and the pressure plate is provided with a fifth through hole corresponding to the fourth through hole. During assembly, the screw passes through the fifth through hole and the fourth through hole in sequence and then engages with the first fixing hole to fix the cutter to the cutter mounting position.

[0012] As a preferred technical solution, the upper side of the pressure plate is provided with a knife cover, the knife cover is provided with a sixth through hole, the pressure plate is provided with a second connecting post that can move within the sixth through hole, the fifth through hole is provided on the second connecting post, and the fourth and sixth through holes are both racetrack-shaped holes. During assembly, the second connecting post extends upward through the sixth through hole, the head of the screw abuts against the upper end face of the second connecting post, and the head of the screw blocks the upper end of the sixth through hole. The diameter of the screw head is larger than the diameter of the sixth through hole.

[0013] As a preferred technical solution, a protective cover is provided on one side of the water tank, and a long groove for observing the water level is provided on the protective cover. A water filling hole is provided at the upper end of the water tank, and the water filling hole is blocked. The water coating component is a sponge, which extends upward from the inside of the water tank to the outside of the water tank and is located between the first clamping space and the second clamping space.

[0014] As a preferred technical solution, the bottom of the receiving groove is provided with a second lever block, the second lever block is provided with a second locking hook located in the receiving groove, and the bottom of the water tank is provided with a second locking block corresponding to the second locking hook. When in operation, the second locking hook is hooked onto the upper surface of the second locking block.

[0015] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, by setting up a pinch roller group, the water-based paper tape can be output stably through the pinch roller group, avoiding the water-based paper tape from retracting, thereby improving the efficiency and quality of sealing boxes. By setting up an adjusting component to control the forward or backward movement of the water-based paper tape, the adjusting component can control the water-based paper tape to re-wet after retraction. After wetting, the adjusting component can re-extend the water-based paper tape from the discharge end of the pinch roller group, avoiding the situation where the water-based paper tape loses its adhesiveness due to long-term exposure and is wasted, thereby improving the tape utilization rate and achieving the purpose of saving costs.

[0016] To more clearly illustrate the structural features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments: Attached Figure Description

[0017] Figure 1 This is an assembly structure diagram of an embodiment of the present utility model;

[0018] Figure 2This is an exploded structural diagram of the water tank and main frame according to an embodiment of the present utility model;

[0019] Figure 3 This is an exploded view of the water tank according to an embodiment of the present invention;

[0020] Figure 4 This is a bottom structural diagram of the main frame according to an embodiment of the present utility model;

[0021] Figure 5 This is an exploded structural diagram of the top cover and main frame according to an embodiment of the present utility model;

[0022] Figure 6 This is an exploded structural diagram of the pinch roller assembly according to an embodiment of the present invention;

[0023] Figure 7 This is an exploded view of the cutting blade mounting structure according to an embodiment of this utility model;

[0024] Explanation of reference numerals in the attached diagram:

[0025] 10. Main frame; 11. Receiving slot; 111. Second snap-fit ​​slot

[0026] 12. Adhesive shaft 121. Buckle 13. Vertical plate

[0027] 14. Second lever block 141. Second locking hook 15. Lower roller frame

[0028] 151. First ear plate; 152. First through hole; 153. First locking block

[0029] 16. Second ear plate 161, Second through hole 20, Water tank

[0030] 21. Protective cover; 211. Long groove; 212. First snap-fit ​​groove

[0031] 213, Second connecting post; 22, Water coating component; 23, Water filling hole.

[0032] 24. Blockage 25. First locking pin 26. Second locking block

[0033] 30. Pinch roller assembly; 31. First pressure roller; 311. First rotating shaft

[0034] 32. Second pressure roller; 321. Second rotating shaft; 33. First bearing roller.

[0035] 34. Second pressure roller; 40. Cutting blade; 41. Fourth through hole

[0036] 42. Tablet press 421. Fifth through hole 422. Second connecting post

[0037] 43. Knife cover; 431. Sixth through hole; 44. Screw

[0038] 50. Top cover; 51. Upper roller frame; 511. Gear set

[0039] 512, First connecting post; 52, Adjusting component; 521, Third rotating shaft

[0040] 53. Arc-shaped adhesive guide cover; 54. Side plate; 541. Third through hole

[0041] 55. First lever block; 551. First locking hook; 56. Cutter mounting position

[0042] 561. First fixing hole. Detailed Implementation

[0043] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "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 the utility model and simplifying the description, and do not indicate or imply that the position or element 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 utility model.

[0044] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0045] like Figure 1-7As shown, a handheld water-based carton sealing machine includes a main frame 10 and a water tank 20. The main frame 10 is provided with a receiving groove 11 adapted to the water tank 20 and a glue-loading shaft 12 for mounting water-based paper tape rolls. The water tank 20 is detachably installed in the receiving groove 11. The main frame 10 is provided with a clamping roller group 30 for conveying water-based paper tape and an adjusting component 52 for controlling the rotation of the clamping roller group 30 to realize the forward or backward movement of the water-based paper tape. A cutting blade 40 is provided on the upper side of the discharge end of the clamping roller group 30. The water tank 20 is provided with a water-coating component 22 for coating the water in the water tank 20 onto the surface of the water-based paper tape. By setting up the pinch roller group 30, the water-paper tape can be output stably, avoiding the water-paper tape from retracting, thus improving the efficiency and quality of sealing the box. By setting up the adjusting component 52 to control the forward or backward movement of the water-paper tape, the adjusting component 52 can control the water-paper tape to re-wet after retraction. After wetting, the adjusting component 52 can re-extend the water-paper tape from the discharge end of the pinch roller group 30, avoiding the water-paper tape from losing its adhesiveness due to long-term exposure and thus avoiding waste. This improves the tape utilization rate and achieves the goal of saving costs.

[0046] Specifically, the main frame 10 has a vertical plate 13 at the end away from the receiving groove 11, and the glue-applying shaft 12 is mounted on the vertical plate 13. The glue-applying shaft 12 has an axial through hole penetrating the vertical plate 13, and a buckle 121 is provided on the side wall of the end of the axial through hole away from the vertical plate 13 to prevent the water-paper tape roll from slipping off the glue-applying shaft 12. In use, fingers can be inserted into the axial through hole for easy hand operation.

[0047] In this utility model, a protective cover 21 is provided on one side of the water tank 20. The protective cover 21 is provided with a long groove 211 for observing the water level. A water filling hole 23 is provided at the upper end of the water tank 20. The water filling hole 23 is provided with a plug 24. The water coating component 22 is a sponge. The sponge extends upward from the inside of the water tank 20 to the outside of the water tank 20. It should be understood that in actual use, the water coating component 22 can also be made of other absorbent materials, such as polymer materials. The water tank 20 has first locking posts 25 on opposite sides, and the cover 21 has first locking grooves 212 on opposite sides corresponding to the first locking posts 25. The cover 21 has second locking posts 213 on opposite sides at the upper end. The receiving groove 11 has a second locking groove 111 corresponding to the second locking posts 213. During assembly, the cover 21 is installed on the outer side of the water tank 20 by locking the first locking posts 25 into the first locking grooves 212, and the water tank 20 is installed in the receiving groove 11 by locking the second locking posts 213 into the second locking grooves 111. The bottom of the receiving groove 11 has a second lever 14, and the second lever 14 has a second locking hook 141 located in the receiving groove 11. The bottom of the water tank 20 has a second locking block 26 corresponding to the second locking hook 141, and the second locking hook 141 hooks onto the upper surface of the second locking block 26.

[0048] like Figure 5-6 As shown, the upper end of the main frame 10 is provided with a flip-openable upper cover 50. The clamping roller group 30 includes an upper roller group and a lower roller group. The upper roller group is installed on the upper cover 50, and the lower roller group is installed on the main frame 10. A conveying channel for the wet paper tape is formed between the upper roller group and the lower roller group. By installing the upper roller group on the flip-openable upper cover 50, the conveying channel can be opened by flipping the upper cover 50, making it easy to pass the wet paper tape between the upper roller group and the lower roller group.

[0049] Specifically, the upper roller group includes a first pressure roller 31 and a second pressure roller 32, which are rotatably mounted on the upper cover 50. The lower roller group includes a first bearing roller 33 and a second bearing roller 34, which are rotatably mounted on the main frame 10 below the upper cover 50. The first pressure roller 31, the second pressure roller 32, the first bearing roller 33, and the second bearing roller 34 are arranged parallel to each other. A first clamping space adapted to the thickness of the wet paper tape is formed between the first pressure roller 31 and the first bearing roller 33, and a second clamping space adapted to the thickness of the wet paper tape is formed between the second pressure roller 32 and the second bearing roller 34. In this invention, the sponge is located between the first clamping space and the second clamping space. The clamping roller group 30 also includes a guide component (not shown) disposed between the first clamping space and the second clamping space. By providing the guide component, the re-wetted wet paper tape can be guided from the first clamping space to the second clamping space. The surfaces of the first pressure roller 31, the second pressure roller 32, the first bearing roller 33, and the second bearing roller 34 are all provided with anti-slip structures, and the surface of the first bearing roller 33 is also provided with an anti-slip rubber ring.

[0050] In this invention, the upper cover 50 is provided with an upper roller frame 51 that can be flipped with the upper cover 50. The first pressure roller 31 and the second pressure roller 32 are rotatably mounted on the upper roller frame 51 via a first rotating shaft 311 and a second rotating shaft 321, respectively. The adjusting component 52 is an adjusting wheel, which is rotatably mounted on the upper roller frame 51 via a third rotating shaft 521. The third rotating shaft 521 controls the first pressure roller 31 and the second pressure roller 32 to rotate simultaneously in the same direction via a gear set 511, thereby controlling the forward or backward movement of the water-based adhesive tape. The main frame 10 is provided with a lower roller frame 15, on which the first pressure roller 33 and the second pressure roller 34 are rotatably mounted. In this invention, the adjusting wheel is located between the first pressure roller 31 and the second pressure roller 32. It should be understood that since the function of the adjusting member 52 is to drive the first pressure roller 31 and the second pressure roller 32 to rotate simultaneously in the same direction, in actual use, the adjusting member 52 can also be a handwheel located at the end of the first rotating shaft 311 or the second rotating shaft 321.

[0051] Specifically, the receiving groove 11 has an upper opening at the top and a side opening on the side. The water tank 20 is installed in the receiving groove 11 through the side opening. The lower roller frame 15 is fixedly installed inside the upper opening by screws. The lower roller frame 15 has two opposing first ear plates 151. The two first ear plates 151 have opposing first through holes 152. The upper opening has opposing second ear plates 16 on both sides, corresponding to the first ear plates 151. The second ear plates 16 have opposing second through holes 161. The upper cover 50 has two opposing side plates 54. The side plate 54 has a third through hole 541 at one end near the receiving groove 11. During assembly, the two ends of the second rotating shaft 321 pass through the first through hole 152, the second through hole 161 and the third through hole 541 in sequence. The upper cover 50 is hinged to the main frame 10 through the second rotating shaft 321, so that the upper cover 50 can be rotated around the second rotating shaft 321. The upper roller frame 51 has outwardly extending first connecting posts 512 on both sides opposite to the end away from the second rotating shaft 321. The inner side of the side plate 54 has connecting holes (not shown) corresponding to the first connecting posts 512. During assembly, the first connecting posts 512 are embedded in the connecting holes.

[0052] A first lever block 55 is provided on one side plate 54 of the upper cover 50, and a first locking hook 551 is provided on the first lever block 55. A first locking block 153 corresponding to the first locking hook 551 is provided on one side of the lower roller frame 15. During operation, the first locking hook 551 hooks onto the lower side of the first locking block 153 to prevent the upper cover 50 from rotating around the second pivot 321. An arc-shaped adhesive guide cover 53 is provided at the end of the upper cover 50 away from the second pivot 321, and the arc-shaped adhesive guide cover 53 is hinged to the upper cover 50.

[0053] like Figure 7As shown, the upper side of the cutting blade 40 is provided with a pressure plate 42, and the upper cover 50 is provided with a cutting blade mounting position 56 at one end near the water tank 20. The cutting blade mounting position 56 is provided with a first fixing hole 561, the cutting blade 40 is provided with a fourth through hole 41 corresponding to the first fixing hole 561, and the pressure plate 42 is provided with a fifth through hole 421 corresponding to the fourth through hole 41. During assembly, the screw 44 passes through the fifth through hole 421 and the fourth through hole 41 in sequence and then engages with the first fixing hole 561 to fix the cutting blade 40 to the cutting blade mounting position 56. The upper side of the pressure plate 42 is provided with a blade cover 43, which has a sixth through hole 431. The pressure plate 42 has a second connecting post 422 that can move within the sixth through hole 431. The fifth through hole 421 is located on the second connecting post 422. Both the fourth through hole 41 and the sixth through hole 431 are racetrack-shaped holes. During assembly, the second connecting post 422 extends upward through the sixth through hole 431, and the head of the screw 44 abuts against the upper end face of the second connecting post 422. The head of the screw also blocks the upper end of the sixth through hole 431, and the diameter of the screw head is larger than the diameter of the sixth through hole 431. By setting the fourth through hole 41 as a racetrack-shaped hole, the extension length of the cutting blade 40 can be adjusted as needed. By setting the sixth through hole 431 as a racetrack-shaped hole, the blade cover 43 can slide relative to the pressure plate 42, thus shielding the cutting blade 40 when not in use and preventing accidental injury.

[0054] In use, the water-paper tape roll is first placed on the outside of the glue-loading shaft 12. Then, the upper cover 50 is rotated around the second rotating shaft 321 to pull the water-paper tape out of the roll and clamp it in the first clamping space. The upper cover 50 is then closed and locked by the first locking hook 551 and the first locking block 153. Next, the water tank 20 is inserted into the receiving groove 11. The adjusting wheel is rotated so that the water-paper tape passes through the sponge on the water tank 20 and is then fed out from the second clamping space. At this time, the water-paper tape can be directly pulled out from the discharge end of the clamping roller group 30 for sealing and other operations. After sealing, it is cut by the cutting knife 40. When the extended part of the tape loses its adhesiveness due to long-term exposure, it can be retracted by adjusting the wheel to re-wet it, thus avoiding tape waste.

[0055] In summary, this utility model, by setting up a pinch roller assembly, ensures stable output of the wet paper tape, preventing tape retraction and improving sealing efficiency and quality. Furthermore, by incorporating an adjusting mechanism to control the tape's forward or backward movement, the tape can be re-wetted and re-extended from the discharge end of the pinch roller assembly, preventing waste due to prolonged exposure and loss of adhesiveness. This improves tape utilization and achieves cost savings.

[0056] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc., made to the above embodiments based on the actual technical aspects of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A handheld water-based carton sealing machine, characterized in that, The device includes a main frame and a water tank. The main frame has a receiving groove adapted to the water tank and a glue-loading shaft for mounting the water-based paper tape roll. The water tank is detachably installed in the receiving groove. The main frame is equipped with a clamping roller assembly for conveying the water-based paper tape and an adjusting component for controlling the rotation of the clamping roller assembly to achieve forward or backward movement of the water-based paper tape. A cutting blade is provided on the upper side of the discharge end of the clamping roller assembly. The water tank is equipped with a water-coating component for applying water from the water tank to the surface of the water-based paper tape.

2. The handheld water-based carton sealing machine according to claim 1, characterized in that, The upper end of the main frame is provided with a flip-open upper cover. The clamping roller group includes an upper roller group and a lower roller group. The upper roller group is installed on the upper cover, and the lower roller group is installed on the main frame. The upper roller group and the lower roller group form a conveying channel for the water-paper tape.

3. The handheld water-based carton sealing machine according to claim 2, characterized in that, The upper roller assembly includes a first pressure roller and a second pressure roller, which are rotatably mounted on the upper cover. The lower roller assembly includes a first bearing roller and a second bearing roller, which are rotatably mounted on the main frame below the upper cover. The first pressure roller, the second pressure roller, the first bearing roller, and the second bearing roller are arranged parallel to each other. A first clamping space adapted to the thickness of the water-paper tape is formed between the first pressure roller and the first bearing roller. A second clamping space adapted to the thickness of the water-paper tape is formed between the second pressure roller and the second bearing roller.

4. The handheld water-based carton sealing machine according to claim 3, characterized in that, The upper cover is provided with an upper roller frame that can be flipped with the upper cover. The first pressure roller and the second pressure roller are rotatably mounted on the upper roller frame via a first rotating shaft and a second rotating shaft, respectively. The adjusting component is an adjusting wheel, which is rotatably mounted on the upper roller frame via a third rotating shaft. The third rotating shaft controls the first pressure roller and the second pressure roller to rotate simultaneously in the same direction via a gear set. The main frame is provided with a lower roller frame, and the first pressure roller and the second pressure roller are rotatably mounted on the lower roller frame.

5. The handheld water-based carton sealing machine according to claim 4, characterized in that, The receiving groove has an upper opening at the top and a side opening on the side. The water tank is installed in the receiving groove through the side opening. The lower roller frame is fixedly installed inside the upper opening by screws. The lower roller frame has two opposing first ear plates, and the two first ear plates have opposing first through holes. The upper opening has opposing second ear plates on both sides, corresponding to the first ear plates. The second ear plates have opposing second through holes. The upper cover has two opposing side plates. The side plates have a third through hole at the end near the receiving groove. During assembly, the two ends of the second rotating shaft pass through the first through hole, the second through hole, and the third through hole in sequence. The upper cover is hinged to the main frame through the second rotating shaft.

6. The handheld water-based carton sealing machine according to claim 5, characterized in that, A first lever is provided on one side plate of the upper cover, and a first locking hook is provided on the first lever. A first locking block corresponding to the first locking hook is provided on one side of the lower roller frame. During operation, the first locking hook is hooked on the lower side of the first locking block so that the upper cover cannot be rotated around the second pivot.

7. The handheld water-based carton sealing machine according to claim 2, characterized in that, The upper side of the cutter is provided with a pressure plate, and the end of the upper cover near the water tank is provided with a cutter mounting position. The cutter mounting position is provided with a first fixing hole, the cutter is provided with a fourth through hole corresponding to the first fixing hole, and the pressure plate is provided with a fifth through hole corresponding to the fourth through hole. During assembly, the screw passes through the fifth through hole and the fourth through hole in sequence and then engages with the first fixing hole to fix the cutter to the cutter mounting position.

8. The handheld water-based carton sealing machine according to claim 7, characterized in that, The upper side of the pressure plate is provided with a knife cover, the knife cover is provided with a sixth through hole, the pressure plate is provided with a second connecting post that can move within the sixth through hole, the fifth through hole is provided on the second connecting post, the fourth through hole and the sixth through hole are both racetrack-shaped holes. During assembly, the second connecting post extends upward through the sixth through hole, the head of the screw abuts against the upper end face of the second connecting post, and the head of the screw blocks the upper end of the sixth through hole. The diameter of the screw head is larger than the diameter of the sixth through hole.

9. The handheld water-based carton sealing machine according to claim 3, characterized in that, The water tank has a cover on one side, and the cover has a long groove for observing the water level. The water tank has a water filling hole at the top, and the water filling hole is plugged. The water coating component is a sponge, which extends upward from inside the water tank to the outside of the water tank and is located between the first clamping space and the second clamping space.

10. The handheld water-based carton sealing machine according to claim 1, characterized in that, The bottom of the receiving groove is provided with a second lever block, and the second lever block is provided with a second locking hook located in the receiving groove. The bottom of the water tank is provided with a second locking block corresponding to the second locking hook. When in operation, the second locking hook is hooked onto the upper surface of the second locking block.

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