Semi-automatic tape sealing machine

Abstract

This invention discloses a semi-automatic tape sealing machine, relating to the field of carton sealing machine technology. The semi-automatic tape sealing machine includes a conveyor and further includes: a sealing core, which is divided into an upper sealing core and a lower sealing core, arranged in cooperation at the upper and lower parts of the conveyor; a seam closing assembly, located on both sides of the upper sealing core, used to push two flaps closer to the seam and to facilitate normal carton transport; and an adsorption assembly, located inside the seam closing assembly, ensuring the flaps are tightly against the seam closing assembly and are not crushed or deformed. By setting the seam closing assembly and the adsorption assembly on both sides of the upper sealing core, when the sealing core presses the tape onto the carton flaps, the seam closing assembly pushes the two flaps closer to the seam, causing the flaps to gradually close from an open state. Simultaneously, the movement of the seam closing assembly is compatible with normal carton transport, and the adsorption assembly ensures the flaps are tightly against the seam closing assembly during the seam closing process, preventing them from being crushed or deformed.

Description

Technical Field

[0001] This invention relates to the field of carton sealing machine technology, specifically a semi-automatic tape sealing machine. Background Technology

[0002] A carton sealing machine is a commonly used packaging machine that uses sealing tape to seal cartons. It can seal both the top and bottom sides simultaneously, resulting in fast, efficient, and aesthetically pleasing packaging.

[0003] On the one hand, logistics companies use recycled old boxes in packaging operations. These boxes have undergone slight plastic deformation, which does not affect normal logistics transportation. However, simply folding the flaps does not make them seal tightly, and long gaps easily form at the box opening. On the other hand, after the goods are filled into the cardboard box, the internal compression and uneven force will cause the side walls of the box to open outward, and long gaps easily form at the box opening, affecting the sealing of the box with tape.

[0004] Most existing equipment uses fixed side guides to clamp and guide cartons to assist in sealing. However, for the top flap of the carton, since the goods are concentrated at the bottom and the top is hollow, and the carton material is relatively soft and weak, relying on the side guides to forcibly squeeze the top flap to achieve sealing can easily lead to compensatory problems such as dented openings and diamond-shaped deformation of the carton. This not only fails to guarantee a seal but also exacerbates carton deformation, ultimately resulting in poor overall sealing quality. Therefore, the sealing component needs to act directly on the top flap, rather than on the carton body. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a semi-automatic tape sealing machine, which solves the problem of incomplete sealing of carton flaps during the sealing process.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a semi-automatic tape sealing machine, including a conveyor, and further comprising: The carton sealing mechanism is divided into an upper carton sealing mechanism and a lower carton sealing mechanism, which are arranged in cooperation at the upper and lower parts of the conveyor. A seam-sealing assembly is located on both sides of the upper sealing mechanism. It is used to push the two flaps closer to the seam and can cooperate with the normal conveying of the carton. An adsorption component is provided inside the seam assembly to ensure that the flap fits tightly against the seam assembly without being crushed or deformed.

[0007] Furthermore, a lifting frame is fixed on the conveyor, a core frame is installed on the lifting frame, the upper sealing core is installed on the core frame, and wing plates are fixed on both sides of the core frame; The sealing mechanism includes a front pressure roller, a cutter, a rear pressure roller, and a guide roller assembly located on the upper part of the mechanism frame, which are installed sequentially on the mechanism frame.

[0008] Furthermore, the seam-sealing assembly includes a spiral shaft, which is rotatably mounted inside the wing plate. Spiral blades are fixedly sleeved on the outside of the spiral shaft. The spiral blades are located on both sides of the area corresponding to the front pressure roller. When the spiral blades rotate, they will simultaneously generate radial and axial forces on the contacting flaps, pushing the two flaps closer to the seam while also coordinating with the normal transport of the carton.

[0009] Further, the adsorption component includes: The first air passage is radially arranged on the spiral shaft and spiral blades; The first fixed tube is located inside the spiral shaft and its two ends are fixed to the mechanism frame. The lower wall of the first fixed tube has a first opening in the area corresponding to the spiral blade. The first connecting hose is fixedly connected to one end of the first fixed tube, and one end of the first connecting hose extends to the outside of the movement frame.

[0010] Furthermore, it also includes a rotary drive assembly for driving the two helical blades to rotate relative to each other, the rotary drive assembly comprising: A rotating shaft is rotatably mounted on the mechanism frame. Two first bevel gears are fixedly sleeved on the outside of the rotating shaft. A second bevel gear is sleeved on one end of each of the two spiral shafts. The second bevel gears mesh with the first bevel gears. The first gear is fixedly sleeved on one end of the rotating shaft. A motor is provided on the core frame. A second gear is provided at the power output end of the motor, and the second gear meshes with the first gear.

[0011] Furthermore, the seam-sealing assembly includes an inclined deflector frame, which is rotatably mounted on the core frame via a deflector shaft. A guide wheel is rotatably mounted in the middle of the deflector frame, and the guide wheel is located on both sides of the area corresponding to the front pressure roller. The rotation of the guide wheel will generate a lateral force to push the flap to seal. At the same time, the flap and the guide wheel are in rolling contact, which can cooperate with the normal transport of the carton.

[0012] Further, the adsorption component includes: The second air passage is radially arranged on the guide wheel; The fixed plate is located inside the guide wheel. A second opening is provided at the bottom of the fixed plate, and a second fixed tube is fixedly connected to both sides of the fixed plate. Side plates are fixed on both sides of the deflection frame, and one end of the second fixed tube is fixed to the side plate. The second connecting hose is fixedly connected to one end of the second fixed tube, and one end of the second connecting hose extends to the outside of the movement frame.

[0013] Furthermore, it also includes a deflection drive assembly for adjusting the deflection angle of the guide wheel. The deflection drive assembly includes a slider, which is rotatably connected to the deflection frame via a first link and a second link. A slide rail is fixed on the mechanism frame, and the slider can slide along the slide rail. A cylinder is provided on the mechanism frame for driving the slider to move.

[0014] Furthermore, the mechanism frame is fixed with shaping wheel sets on both sides, the shaping wheel sets are located on both sides of the area corresponding to the rear pressure roller, and the distance between the two shaping wheel sets can be adjusted.

[0015] Furthermore, the lower sealing mechanism is provided with side belts on both sides, and the distance between the two sets of side belts can be adjusted.

[0016] The present invention has the following beneficial effects: 1. This semi-automatic tape sealing machine, by setting a seam closing component and an adsorption component on both sides of the upper sealing core, when the sealing core presses the tape onto the carton flaps, the seam closing component pushes the two flaps closer to the seam, so that the flaps on both sides gradually close from the open state. At the same time, the movement mode of the seam closing component can be coordinated with the normal conveying of the carton, and the adsorption component makes the flaps stick tightly to the seam closing component during the seam closing process, and will not be crushed or deformed.

[0017] 2. This semi-automatic tape sealing machine adopts a sealing assembly with a spiral blade structure. The rotation of the spiral blade generates radial and axial forces on the contacting flaps. The radial force pushes the flaps to seal, while the axial force assists the carton to move along the conveying direction, thus achieving synchronous sealing during the sealing process.

[0018] 3. This semi-automatic tape sealing machine adopts a seam-sealing assembly with an inclined guide wheel structure. The flap contacts the guide wheel and drives it to rotate. The resultant force can be decomposed into a component force along the conveying direction and a lateral component force perpendicular to the conveying direction. The lateral component force pushes the flap towards the center to seal the seam, while the component force along the conveying direction is consistent with the direction of carton movement and will not hinder the conveying.

[0019] 4. This semi-automatic tape sealing machine is equipped with a shaping wheel set to clamp and constrain the upper sides of the sealed carton, preventing the flap from springing back before the tape has fully cured, ensuring that the tape is fully adhered and improving the sealing quality.

[0020] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the assembly of the movement frame and the shaping wheel assembly in Embodiment 1 of the present invention; Figure 3This is a schematic diagram of the assembly of the mechanism frame and the helical blades in Embodiment 1 of the present invention; Figure 4 This is an exploded view of the mechanism frame, upper sealing mechanism, helical blades, and rotary drive assembly in Embodiment 1 of the present invention; Figure 5 This is an exploded view of the spiral shaft and the first fixed tube in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention; Figure 7 This is a schematic diagram of the assembly of the movement frame and guide wheel in Embodiment 2 of the present invention; Figure 8 This is an exploded view of the movement frame, upper sealing mechanism, guide wheel, and deflection drive assembly in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the deflection drive component in Embodiment 2 of the present invention; Figure 10 This is an exploded view of the guide wheel and the fixed disc in Embodiment 2 of the present invention.

[0022] In the diagram, 1. Side belt; 2. Lifting frame; 31. Front pressure roller; 32. Cutter; 33. Rear pressure roller; 34. Guide belt roller assembly; 41. Spiral shaft; 42. Spiral blade; 43. Deflection frame; 431. Side plate; 44. Deflection shaft; 45. Guide wheel; 51. First air passage; 52. First fixed pipe; 521. First opening; 53. First connecting hose; 54. Fixed plate; 541. Second opening; 55. Second fixed pipe; 56. Second air passage; 57. Second connecting hose; 61. First gear; 62. Second gear; 63. Motor; 64. Rotating shaft; 65. First bevel gear; 66. Second bevel gear; 71. Slider; 72. First connecting rod; 73. Second connecting rod; 74. Cylinder; 8. Mechanism frame; 81. Wing plate; 82. Slide rail; 9. Conveyor; 10. Shaping roller assembly; 11. Belt reel. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this invention.

[0025] The following is based on Figures 1-10 This invention describes a semi-automatic tape sealing machine provided in an embodiment of the present invention.

[0026] Example 1:

[0027] Please refer to Figures 1-5 The present invention provides a semi-automatic tape sealing machine, including a conveyor 9, a sealing core, a sealing assembly, and an adsorption assembly.

[0028] The conveyor 9 is equipped with conveyor rollers for conveying cartons to be sealed, so that the cartons pass through the sealing area at a uniform speed, realizing semi-automatic continuous sealing operation; the sealing mechanism is divided into an upper sealing mechanism and a lower sealing mechanism, which are arranged in cooperation at the upper and lower parts of the conveyor 9. When the cartons are conveyed through the sealing area, the upper and lower mechanisms cooperate symmetrically to seal the gap between the upper and lower flaps of the cartons with tape.

[0029] The seam closing assembly is located on both sides of the upper sealing machine core. When the sealing machine core presses the tape onto the carton flaps, the seam closing assembly pushes the two flaps closer to the seam, so that the flaps on both sides gradually close in the center from the open state. At the same time, the movement mode of the seam closing assembly can be coordinated with the normal conveying of the carton.

[0030] The adsorption component is located inside the sealing component. The cardboard box flaps are mostly made of thin paper boards, which are relatively soft. Simply relying on mechanical pushing to seal the flaps can easily cause local collapse, resulting in the sealing component separating from the flaps and failing to achieve the desired sealing effect. However, the adsorption component keeps the flaps tightly attached to the sealing component during the sealing process and prevents them from being crushed or deformed.

[0031] Please refer to Figure 1 and Figure 4 A lifting frame 2 is fixed on the conveyor 9. A core frame 8 is installed on the lifting frame 2. The upper sealing core is installed on the core frame 8. The height of the core frame 8 can be adjusted by the lifting frame 2 to meet the sealing requirements of cartons of different heights. Wing plates 81 are fixed on both sides of the core frame 8. The wing plates 81 facilitate the installation of the seam sealing components. In addition, a tape roll 11 is fixed on the lifting frame 2.

[0032] The sealing mechanism includes a front pressure roller 31, a cutter 32, and a rear pressure roller 33, which are sequentially mounted on the mechanism frame 8, and a guide roller assembly 34 located on the upper part of the mechanism frame 8. The guide roller assembly 34 is used to guide the tape from the tape reel 11 and keep the tape taut. When the carton enters the sealing area, the front pressure roller 31 presses the front end of the tape against the front wall of the carton and continuously pastes it along the center seam of the flap. The rear pressure roller 33 presses the tape firmly onto the center seam of the flap. When the rear end of the carton has completely passed the rear pressure roller 33, the carton will trigger the linkage mechanism, causing the cutter 32 to pop out quickly and cut the tape. The rear pressure roller 33 presses the cut end of the tape firmly. The carton continues to move forward with the pasted tape, leaving the sealing mechanism, completing the single-seal center seam of a single tape.

[0033] Please refer to Figures 2-5 The sealing assembly includes a spiral shaft 41, which is rotatably mounted inside the wing plate 81. Spiral blades 42 are fixedly sleeved on the outside of the spiral shaft 41. The spiral blades 42 are located on both sides of the corresponding area of ​​the front pressure roller 31. When the carton enters the sealing area, the upper surface of the carton flaps will contact the spiral blades 42. During the continuous rotation of the spiral outer edge of the spiral blades 42, radial and axial forces will be generated on the contacting flaps. The radial force continuously pushes the flaps on both sides closer to the center of the carton, so that the two flaps seal. At the same time, the axial force is consistent with the carton conveying direction, which can assist in pushing the carton to be conveyed and eliminate the resistance interference of the sealing assembly to the carton conveying.

[0034] Specifically, the spiral blades 42 located on both sides of the corresponding area of ​​the front pressure roller 31 are left-handed and right-handed, respectively (e.g. Figure 4 The right-hand spiral blade 42 rotates counterclockwise, pushing the two side flaps to close, while the axial force is consistent with the direction of carton conveying. The left-hand spiral blade 42 rotates clockwise, pushing the two side flaps to close, while the axial force is consistent with the direction of carton conveying.

[0035] It should be noted that because the base of the flap is connected to the box body to form a constraint, and the corrugated cardboard is an elastic and flexible component, the spiral blade 42 only applies lateral thrust at local points. Therefore, only the small section of the flap that is in contact with the spiral blade 42 is pulled inward and the tape is applied in real time. The flaps that have not entered the sealing area remain open or incompletely closed. As the carton moves forward, the contact point moves forward continuously, and the sealing area gradually extends. The flaps that have passed the spiral blade 42 are kept closed under the action of the tape.

[0036] Preferably, the outer edge of the spiral blade 42 is provided with soft rubber to increase the contact friction between the outer edge of the spiral blade 42 and the cardboard, making it less prone to slipping and ensuring a stable sealing effect; and the texture is flexible and the elasticity is moderate, effectively protecting the flap.

[0037] Please refer to Figures 2-5The adsorption assembly is provided with a first airway 51, a first fixed tube 52 and a first connecting hose 53.

[0038] The first air passage 51 is radially opened on the spiral shaft 41 and the spiral blade 42. The first air passage 51 opens along the outer edge of the spiral blade 42 to form a negative pressure adsorption area on the outer surface of the blade.

[0039] The first fixed tube 52 is located inside the spiral shaft 41, and both ends of the first fixed tube 52 are fixed on the core frame 8, keeping it stationary and not rotating with the spiral shaft 41. The lower tube wall of the first fixed tube 52 is provided with a first opening 521 in the area corresponding to the spiral blade 42, so that the inner cavity of the spiral shaft 41 and the first air passage 51 are connected only in this area.

[0040] The first connecting hose 53 is fixedly connected to one end of the first fixed pipe 52, and one end of the first connecting hose 53 extends to the outside of the core frame 8 and is connected to an external negative pressure air source.

[0041] Specifically, when the external negative pressure air source is working, the negative pressure is transmitted to the inner cavity of the first fixed tube 52 through the first connecting hose 53, and then forms a negative pressure in the corresponding area of ​​the inner cavity of the spiral shaft 41 through the first opening 521. This negative pressure then generates an adsorption force on the outer surface of the bottom of the spiral blade 42 through the first air passage 51. Since the first opening 521 is only located below the spiral blade 42, the adsorption force only acts on the contact area of ​​the flap. When the spiral blade 42 rotates to other positions, no negative pressure is generated, thus avoiding multi-directional adsorption that could cause the flap to warp and deform.

[0042] Please refer to Figure 3 and Figure 4 In order to facilitate the relative rotation of the two helical blades 42, a rotation drive assembly is also provided to drive the two helical blades 42 to rotate relative to each other. The rotation drive assembly includes a rotating shaft 64 and a first gear 61.

[0043] The rotating shaft 64 is rotatably mounted on the mechanism frame 8. Two first bevel gears 65 are fixedly sleeved on the outside of the rotating shaft 64. A second bevel gear 66 is sleeved on one end of each of the two spiral shafts 41. The second bevel gear 66 meshes with the first bevel gear 65.

[0044] The first gear 61 is fixedly sleeved on one end of the rotating shaft 64. The mechanism frame 8 is equipped with a motor 63. The power output end of the motor 63 is equipped with a second gear 62, which meshes with the first gear 61.

[0045] Specifically, the motor 63 drives the second gear 62 to rotate, which in turn drives the rotating shaft 64 to rotate via the first gear 61. The two first bevel gears 65 on the rotating shaft 64 drive the two spiral shafts 41 on both sides to rotate relative to each other via the second bevel gear 66, so that the spiral blades 42 generate an inward radial thrust and an axial component force in the direction of the carton's movement.

[0046] Please refer to Figure 2 The core frame 8 is fixed with shaping wheel sets 10 on both sides. The shaping wheel sets 10 are composed of multiple horizontally arranged guide rollers. The shaping wheel sets 10 are located on both sides of the area corresponding to the rear pressure roller 33, that is, in the area where the carton continues to be conveyed after the tape is pasted. The distance between the two shaping wheel sets 10 can be adjusted to clamp and constrain the upper sides of the carton after it has been sealed, preventing the flap from rebounding when the tape has just been pasted but has not yet fully cured, ensuring that the tape is fully adhered and improving the sealing quality.

[0047] Please refer to Figure 1 The lower sealing mechanism has side belts 1 on both sides. The distance between the two sets of side belts 1 can be adjusted. The side belts 1 contact the two sides of the lower part of the carton and drive the carton to move smoothly forward along the conveying direction by friction clamping. The side belts 1 also clamp and constrain the flaps on both sides of the lower part of the carton, which can close the flaps at the bottom of the carton. Because the goods are concentrated at the bottom of the carton, the lower structure of the carton is more stable, with rigid support and strong pressure resistance. The clamping and constraining of the side belts 1 makes the flaps on both sides of the lower part of the carton close to the seam, without causing the carton to deform under the force compensation.

[0048] When using, adjust the height of the lifting frame 2, the spacing of the shaping wheel group 10, and the spacing of the side belt 1 according to the carton specifications. Manually fold the bottom flap of the carton, place the items inside the carton, and then manually fold the top flap of the carton.

[0049] The start-up side belt 1 drives the carton to move. When the carton enters the sealing area, the front pressure roller 31 first presses the front end of the tape onto the front wall of the carton and continuously pastes it along the center seam of the flap. While the front pressure roller 31 is continuously pasting along the center seam of the flap, the rotary drive assembly drives two spiral blades 42 to rotate relative to each other on both sides of the front pressure roller 31, so that the small section of the flap that is in contact with the spiral blades 42 is pulled inward in real time and the tape is pasted. Specifically, the upper surface of the carton flap will contact the spiral blades 42. During the continuous rotation, the spiral outer edge of the spiral blades 42 will generate radial and axial forces on the contacting flaps. The radial force continuously pushes the two flaps closer to the center of the carton, so that the two flaps are closed. The axial force is consistent with the carton conveying direction, which can assist in pushing the carton to be conveyed and eliminate the resistance interference of the closing assembly on the carton conveying. During the process, the external negative pressure air source generates an adsorption force on the bottom outer surface of the spiral blade 42 through the first air passage 51, which facilitates the sealing of the spiral blade 42 with the flap. Since the first opening 521 is located only below the spiral blade 42, the adsorption force only acts on the contact area of ​​the flap, avoiding multi-directional adsorption that could cause the flap to warp and deform. After the carton is sealed, it passes through the shaping wheel assembly 10, where the flap is held in place.

[0050] As the carton continues forward, the rear pressure roller 33 presses the tape firmly onto the center seam of the flap. When the rear of the carton has completely passed the rear pressure roller 33, the carton triggers a linkage mechanism, causing the cutter 32 to quickly pop out and cut the tape. The rear pressure roller 33 then presses the cut tape end firmly onto the carton. The upper and lower sealing mechanisms then complete the sealing operation for the upper and lower seams of the carton. The carton continues to move forward with the tape on, leaving the sealing mechanism, completing a single-seal center seam. At this point, the flap gap of the single-seal is tightly sealed, and a cross seal can be added as needed.

[0051] Example 2: Please refer to Figures 6-10 The difference between this embodiment and Embodiment 1 lies in the seam-sealing component and the adsorption component. The seam-sealing component here includes an inclined deflection frame 43, which is rotatably mounted on the core frame 8 via a deflection shaft 44. A guide wheel 45 is rotatably mounted in the middle of the deflection frame 43. The guide wheel 45 is located on both sides of the area corresponding to the front pressure roller 31. The deflection frame 43 can swing around the deflection shaft 44 to adjust the deflection angle of the guide wheel 45. The rotation of the guide wheel 45 will generate a lateral force to push the flap to close the seam. At the same time, the flap and the guide wheel 45 are in rolling contact, which can cooperate with the normal conveying of the carton.

[0052] Specifically, due to the inclined arrangement of the deflector frame 43, the rotation axis of the guide wheel 45 has a certain tilt angle relative to the vertical direction. When the carton is conveyed through, the guide wheel 45 is driven to rotate by the contact of the flap, and the resultant force can be decomposed into a component force along the conveying direction and a lateral component force perpendicular to the conveying direction. The lateral component force pushes the flap towards the center to close the seam, while the component force along the conveying direction is consistent with the direction of carton movement and will not hinder the conveying. Since there is a rolling contact between the guide wheel 45 and the flap, the frictional resistance is greatly reduced compared to the sliding friction of the fixed guide plate, allowing the carton to pass smoothly without causing conveying jams due to excessive resistance.

[0053] Please refer to Figures 7-10 The adsorption assembly includes a second airway 56, a fixed plate 54, and a second connecting hose 57.

[0054] The second air passage 56 is radially opened on the guide wheel 45 and is evenly distributed along the outer circumference of the guide wheel 45, which is used to form a negative pressure adsorption zone on the outer surface of the guide wheel 45.

[0055] The fixed plate 54 is located inside the guide wheel 45. The lower part of the fixed plate 54 has a second opening 541, which connects the inner cavity of the fixed plate 54 with the second air passage 56 in this area. The fixed plate 54 is fixedly connected to the two sides of the fixed plate 54. The deflection frame 43 is fixedly connected to the two sides of the side plate 431. One end of the second fixed tube 55 is fixed to the side plate 431, so that the fixed plate 54 itself does not rotate with the guide wheel 45.

[0056] The second connecting hose 57 is fixedly connected to one end of the second fixed pipe 55, and one end of the second connecting hose 57 extends to the outside of the core frame 8 and is connected to an external negative pressure air source.

[0057] Specifically, an external negative pressure air source creates negative pressure within the cavity of the fixed plate 54 through the second connecting hose 57 and the second fixing pipe 55. This negative pressure is then generated at the second air passage 56 in the contact area between the guide wheel 45 and the flap, through the second opening 541, causing the flap to adhere to the surface of the guide wheel 45 under negative pressure. Since the second opening 541 is located only below the guide wheel 45, the suction force only acts on the contact area of ​​the flap. When the guide wheel 45 rotates to other positions, no negative pressure is generated, thus avoiding multi-directional suction that could cause the flap to warp and deform.

[0058] Please refer to Figures 7-9 In order to facilitate the adjustment of the deflection angle of the guide wheel 45 and change the moving distance of the flap according to the needs, a deflection drive assembly is also provided. The deflection drive assembly includes a slider 71, which is rotatably connected to the deflection frame 43 through a first connecting rod 72 and a second connecting rod 73. A slide rail 82 is fixed on the mechanism frame 8, and the slider 71 can slide along the slide rail 82. A cylinder 74 is provided on the mechanism frame 8 to drive the slider 71 to move.

[0059] Specifically, cylinder 74 drives slider 71 to move along slide rail 82. Through the linkage of first link 72 and second link 73, it drives deflector frame 43 to swing around deflection axis 44, thereby changing the deflection angle of guide wheel 45. The larger the deflection angle, the greater the lateral force generated by guide wheel 45 on flap, and the stronger the pushing force, which is suitable for cartons with flaps that open at a large angle. When the deflection angle is small, the pushing force is relatively gentle, which is suitable for cartons with flaps that are basically closed.

[0060] In use, firstly, based on the gap between the flaps, activate the deflection drive assembly to adjust the deflection angle of the guide wheel 45. When the carton enters the sealing area, as the front pressure roller 31 continuously pastes along the center seam of the flap, the guide wheel 45 is driven to rotate by the flap contact. The rotation of the guide wheel 45 generates a component force along the conveying direction and a lateral component force perpendicular to the conveying direction. The lateral component force pushes the flaps towards the center to close the seam, while the component force along the conveying direction is consistent with the direction of carton movement and will not obstruct the conveying. During the process, the external negative pressure air source generates an adsorption force on the outer surface of the guide wheel 45 through the second air channel 56, facilitating the closing of the flaps by the guide wheel 45. Furthermore, the second opening 541 is only located below the guide wheel 45, so the adsorption force only acts on the contact area of ​​the flaps, avoiding multi-directional adsorption that could cause the flaps to warp and deform.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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. 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 process, method, article, or apparatus.

[0062] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. Semi-automatic taping machine for cartons, comprising a conveyor (9), characterized in that, Also includes: The sealing mechanism is divided into an upper sealing mechanism and a lower sealing mechanism, which are installed in cooperation with each other at the upper and lower parts of the conveyor (9); A seam-sealing assembly is located on both sides of the upper sealing mechanism. It is used to push the two flaps closer to the seam and can cooperate with the normal conveying of the carton. An adsorption component is provided inside the seam assembly to ensure that the flap fits tightly against the seam assembly without being crushed or deformed.

2. The semi-automatic taping machine of claim 1, wherein, The conveyor (9) is fixed with a lifting frame (2), and a core frame (8) is installed on the lifting frame (2). The upper sealing core is installed on the core frame (8), and wing plates (81) are fixed on both sides of the core frame (8). The sealing mechanism includes a front pressure roller (31), a cutter (32), a rear pressure roller (33) installed sequentially on the mechanism frame (8), and a guide roller group (34) located on the upper part of the mechanism frame (8).

3. The semi-automatic taping machine of claim 2, wherein, The seam fitting assembly includes a spiral shaft (41), which is rotatably installed inside the wing plate (81). Spiral blades (42) are fixedly sleeved on the outside of the spiral shaft (41). The spiral blades (42) are located on both sides of the corresponding area of ​​the front pressure roller (31). When the spiral blades (42) rotate, they will generate radial and axial forces on the contacting flaps at the same time, pushing the two flaps closer to the seam while cooperating with the normal conveying of the carton.

4. The semi-automatic tape case sealer of claim 3, wherein, The adsorption component includes: The first airway (51) is radially arranged on the spiral shaft (41) and the spiral blades (42); The first fixed tube (52) is located inside the spiral shaft (41), and both ends of the first fixed tube (52) are fixed on the mechanism frame (8). The lower tube wall of the first fixed tube (52) is provided with a first opening (521) in the area corresponding to the spiral blade (42). The first connecting hose (53) is fixedly connected to one end of the first fixed tube (52), and one end of the first connecting hose (53) extends to the outside of the mechanism frame (8).

5. The semi-automatic tape sealing machine according to claim 3, characterized in that, It also includes a rotary drive assembly for driving two helical blades (42) to rotate relative to each other, the rotary drive assembly comprising: A rotating shaft (64) is rotatably mounted on the mechanism frame (8). Two first bevel gears (65) are fixedly sleeved on the outside of the rotating shaft (64). A second bevel gear (66) is sleeved on one end of each of the two spiral shafts (41). The second bevel gear (66) meshes with the first bevel gear (65). The first gear (61) is fixedly sleeved on one end of the rotating shaft (64). The mechanism frame (8) is equipped with a motor (63). The power output end of the motor (63) is equipped with a second gear (62), which meshes with the first gear (61).

6. The semi-automatic tape sealing machine according to claim 2, characterized in that, The seam-sealing assembly includes an inclined deflector frame (43), which is rotatably mounted on the core frame (8) via a deflector shaft (44). A guide wheel (45) is rotatably mounted in the middle of the deflector frame (43). The guide wheel (45) is located on both sides of the area corresponding to the front pressure roller (31). The rotation of the guide wheel (45) will generate a lateral force to push the flap to close the seam. At the same time, the flap and the guide wheel (45) are in rolling contact, which can cooperate with the normal transport of the carton.

7. The semi-automatic tape sealing machine according to claim 6, characterized in that, The adsorption component includes: The second air passage (56) is radially opened on the guide wheel (45); The fixed plate (54) is located inside the guide wheel (45). The fixed plate (54) has a second opening (541) at the bottom and a second fixed tube (55) is fixedly connected to both sides of the fixed plate (54). The deflection frame (43) has side plates (431) fixed on both sides and one end of the second fixed tube (55) is fixed on the side plate (431). The second connecting hose (57) is fixedly connected to one end of the second fixed tube (55), and one end of the second connecting hose (57) extends to the outside of the mechanism frame (8).

8. The semi-automatic tape sealing machine according to claim 6, characterized in that, It also includes a deflection drive assembly for adjusting the deflection angle of the guide wheel (45). The deflection drive assembly includes a slider (71), which is rotatably connected to the deflection frame (43) via a first link (72) and a second link (73). A slide rail (82) is fixed on the mechanism frame (8), and the slider (71) can slide along the slide rail (82). A cylinder (74) is provided on the mechanism frame (8) for driving the slider (71) to move.

9. The semi-automatic tape sealing machine according to any one of claims 1-8, characterized in that, The mechanism frame (8) is fixed with shaping wheel sets (10) on both sides. The shaping wheel sets (10) are located on both sides of the area corresponding to the rear pressure roller (33), and the distance between the two shaping wheel sets (10) can be adjusted.

10. The semi-automatic tape sealing machine according to claim 1, characterized in that, The lower sealing mechanism is provided with side belts (1) on both sides, and the distance between the two sets of side belts (1) can be adjusted.

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