Automatic cover pressing structure for packaging box

Abstract

The utility model discloses an automatic cover pressing structure for a packaging box, which comprises a supporting assembly, the supporting assembly comprises a supporting plate, a plurality of rollers are rotatably connected in the supporting plate, a conveying assembly is arranged at the tops of the rollers, and the conveying assembly comprises a first conveying belt and a second conveying belt which are slidably connected to the top of the supporting plate. Guide rods are arranged on the two sides of the bottoms of the first conveying belt and the second conveying belt, a lead screw is arranged between the guide rods, the guide rods and the lead screw are connected with the first conveying belt and the second conveying belt through bearing seats, one side of the lead screw is in key connection with a first servo motor, and second servo motors are arranged on one sides of the bottoms of the first conveying belt and the second conveying belt. The distance between the conveying belts can be rapidly adjusted through the conveying mechanism according to the width of a packaging box, glue is continuously heated through the glue spraying assembly, the viscosity of the glue is reduced, the good fluidity of the glue is kept, it is guaranteed that the spraying head can evenly, rapidly and stably spray the glue, and the glue spraying position and angle can be rapidly adjusted through the heating tank.

Description

Technical Field

[0001] This utility model relates to the field of packaging box processing technology, specifically to an automatic capping structure for packaging boxes. Background Technology

[0002] With the rapid development of global manufacturing and logistics industries, packaging boxes, as an important carrier for product transportation and storage, directly impact the overall efficiency of the supply chain through their sealing efficiency and quality. Furthermore, in the modern packaging industry, adhesive spraying technology is widely used in the box capping process because it effectively improves the sealing performance and production efficiency of packaging boxes.

[0003] Furthermore, existing capping equipment often uses conveyor belts with fixed spacing or only supports single-dimensional adjustment. When faced with packaging boxes of different sizes, it cannot accurately adapt to the box width, causing the packaging boxes to shift and shake during transport. This not only easily leads to misalignment between the box lid and the box body, resulting in incomplete capping or skewed lids, but also seriously affects the sealing and aesthetics of the packaging.

[0004] Traditional glue spraying equipment often uses rollers or sprayers, which can easily lead to problems such as excessive glue spillage that contaminates the box or insufficient glue application that results in weak capping, affecting the overall quality and appearance of the packaging. Furthermore, these spraying devices lack flexible adaptive adjustment capabilities and are prone to clogging. Therefore, there is an urgent need to design an automatic capping structure for packaging boxes to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide an automatic capping structure for packaging boxes to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An automatic capping structure for packaging boxes includes a support assembly. The support assembly includes a support plate, and a plurality of rollers are rotatably connected inside the support plate. A conveying assembly is provided on the top of the rollers. The conveying assembly includes a first conveyor belt and a second conveyor belt slidably connected to the top of the support plate. Preferably, guide rods are provided on both sides of the bottom of the first and second conveyor belts, and a lead screw is provided between the guide rods. The guide rods and the lead screw are connected to the first and second conveyor belts through bearing seats. A first servo motor is keyed to one side of the lead screw, and a second servo motor is provided on one side of the bottom of both the first and second conveyor belts.

[0008] A glue spraying assembly is provided on one side of the first conveyor belt. The glue spraying assembly includes a base bolted to one side of the first conveyor belt, a fixed column fixedly connected to the top of the base, a groove on one side of the fixed column, a slot hole on one side of the groove, a connecting plate slidably connected inside the groove, a heating tank rotatably connected to one side of the connecting plate, and a nozzle provided at the bottom of the heating tank.

[0009] A delivery pipe is provided on one side of the heating tank, and a liquid pump is provided on one side of the delivery pipe. The liquid pump is connected to the heating tank through the delivery pipe.

[0010] The connecting plate is equipped with a locking assembly, which includes a telescopic rod bolted to the connecting plate. A return spring is sleeved on the outer wall of the telescopic rod. A top pin is provided at one end of the telescopic rod, and a lever is provided on one side of the top pin.

[0011] Preferably, the bottom of the support plate is provided with a plurality of support legs, and the liquid pump is fixedly installed on one side of the support legs by bolts.

[0012] Preferably, a lifting mechanism is provided on the top of the support plate. The lifting mechanism includes a gantry frame bolted to both sides of the support plate. A threaded rod is provided inside the gantry frame. A sliding block is provided on the outer wall of the threaded rod. A gear one is provided on the top of the sliding block. A transmission rod is provided on the top of the gantry frame. A bearing motor is provided in the middle of the transmission rod. Gear two is provided at both ends of the transmission rod. The gear two and gear one together form a gear set.

[0013] Preferably, a rotating assembly is provided on one side of the sliding block. The rotating assembly includes a connecting rod fixedly connected between the sliding blocks. A fixing plate is sleeved on the outer wall of the connecting rod. A motor is provided on one side of the fixing plate. A rotating fan is connected to the output shaft of the motor. A pulley is provided on the other side of the fixing plate.

[0014] Preferably, a pressure cap assembly is provided on the top of the first conveyor belt. The pressure cap assembly includes a base plate bolted to the first conveyor belt. A pneumatic telescopic rod is provided on the top of the base plate. The telescopic shaft of the pneumatic telescopic rod is provided with a hinge. A pressure plate is bolted to one side of the hinge. The pressure plate is connected to the pneumatic telescopic rod through the hinge.

[0015] Preferably, a compression shaft is provided at the top of the second conveyor belt.

[0016] In the above technical solution, the automatic capping structure for packaging boxes provided by this utility model has the following advantages:

[0017] (1) The first conveyor belt and the lead screw at the bottom of the second conveyor belt of the conveying mechanism and the first servo motor form a precise adjustment system, which can quickly adjust the conveyor belt spacing according to the width of the packaging box, so that boxes of different specifications can remain stable and centered during the conveying process, realize flexible operation at multiple angles and positions, and comprehensively improve the adaptability of the equipment to different packaging scenarios.

[0018] (2) The liquid pump in the glue spraying assembly delivers the glue to the heating tank through the delivery pipe. The heating tank continuously heats the glue to reduce its viscosity and keep the glue in good fluidity. This ensures that the nozzle can spray the glue evenly, quickly and stably. The connecting plate can slide in the chute and the heating tank can rotate. The operator can quickly adjust the glue spraying position and angle according to the actual shape of the packaging box and the glue spraying requirements, so that the glue spraying operation can be accurately adapted to various packaging boxes. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a three-dimensional structural view of an embodiment of an automatic capping structure for packaging boxes according to the present invention.

[0021] Figure 2 This is a perspective view of the support component structure provided for an embodiment of the automatic capping structure for packaging boxes according to this utility model.

[0022] Figure 3 This is a three-dimensional view of the lifting mechanism structure provided in an embodiment of the automatic capping structure for packaging boxes according to this utility model.

[0023] Figure 4 This is a perspective view of the conveying component structure provided in an embodiment of an automatic capping structure for packaging boxes according to this utility model.

[0024] Figure 5 This is a three-dimensional view of the capping assembly structure provided in an embodiment of the automatic capping structure for packaging boxes according to this utility model.

[0025] Figure 6 This is a three-dimensional view of the adhesive spraying assembly structure provided in an embodiment of an automatic capping structure for packaging boxes according to this utility model.

[0026] Figure 7 This is a perspective view of the locking component structure provided in an embodiment of an automatic capping structure for packaging boxes according to this utility model.

[0027] 1. Support assembly; 11. Support plate; 12. Support leg; 13. Roller; 2. Lifting mechanism; 21. Gantry frame; 22. Threaded rod; 23. Sliding block; 24. Gear one; 25. Transmission rod; 26. Gear two; 27. Bearing motor; 28. Rotating assembly; 281. Connecting rod; 282. Fixing plate; 283. Motor; 284. Rotating fan; 285. Pulley; 3. Conveying assembly; 31. First conveyor belt; 32. Second conveyor belt; 33. 34. Guide rod; 35. First servo motor; 36. Lead screw; 47. Second servo motor; 48. Cover assembly; 49. Base plate; 40. Pneumatic telescopic rod; 41. Hinge; 42. Pressing plate; 53. Glue spraying assembly; 54. Base; 55. Fixing column; 56. Connecting plate; 57. Heating tank; 58. Nozzle; 59. Delivery pipe; 50. Liquid pump; 51. Locking assembly; 52. Telescopic rod; 53. Return spring; 54. Top pin; 55. Extrusion shaft. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-7 As shown in the figure, an automatic capping structure for packaging boxes provided in this embodiment of the present invention includes a support assembly 1, which includes a support plate 11. A plurality of rollers 13 are rotatably connected inside the support plate 11. A conveying assembly 3 is provided on the top of each roller 13. The conveying assembly 3 includes a first conveyor belt 31 and a second conveyor belt 32 slidably connected to the top of the support plate 11. A glue spraying assembly 5 is provided on one side of the first conveyor belt 31. The glue spraying assembly 5 includes a base 51 bolted to one side of the first conveyor belt 31. A fixing post 52 is fixedly connected to the top of the base 51. A groove is provided on one side of the fixing post 52, and a... The device has a slotted groove, and a connecting plate 53 is slidably connected inside the groove. A heating tank 54 is rotatably connected to one side of the connecting plate 53. A nozzle 55 is provided at the bottom of the heating tank 54. A delivery pipe 56 is provided on one side of the heating tank 54, and a liquid pump 57 is provided on one side of the delivery pipe 56. The liquid pump 57 is connected to the heating tank 54 through the delivery pipe 56. A locking assembly 58 is provided inside the connecting plate 53. The locking assembly 58 includes a telescopic rod 581 bolted to the connecting plate 53. A return spring 582 is sleeved on the outer wall of the telescopic rod 581. A top pin 583 is provided at one end of the telescopic rod 581, and a paddle 584 is provided on one side of the top pin 583.

[0030] In this embodiment, a support assembly 1 is included, which includes a support plate 11. A plurality of rollers 13 are rotatably connected inside the support plate 11. Multiple cylindrical mounting holes are equally spaced along the length of the support plate 11. The rollers 13 are rotatably connected to these mounting holes via bearings. When a packaging box is placed on the support plate 11, the rollers 13 can rotate freely under the weight of the packaging box, greatly reducing the friction when the packaging box moves. A conveying assembly 3 is provided at the top of the rollers 13. The conveying assembly 3 includes a first conveyor belt 31 and a second conveyor belt 32 slidably connected to the top of the support plate 11. The first conveyor belt 31... Guide rods 33 are provided on both sides of the bottom of the second conveyor belt 32, and lead screws 35 are provided between the guide rods 33. The guide rods 33 and lead screws 35 are connected to the first conveyor belt 31 and the second conveyor belt 32 through bearing seats. A first servo motor 34 is connected to one side of the lead screw 35. A second servo motor 36 is provided on one side of the bottom of the first conveyor belt 31 and the second conveyor belt 32. When the first servo motor 34 is started, the lead screw 35 rotates accordingly. Using the principle of screw transmission, the first conveyor belt 31 and the second conveyor belt 32 slide along the direction of the guide rods 33, thereby realizing the flexible adjustment of the distance between the two conveyor belts to adapt to packaging boxes of different widths.

[0031] A glue spraying assembly 5 is provided on one side of the first conveyor belt 31. The glue spraying assembly 5 includes a base 51 bolted to one side of the first conveyor belt 31 to ensure its stable position. A fixing post 52 is fixedly connected to the top of the base 51. A groove is opened on one side of the fixing post 52, and a slot is opened on one side of the groove. A groove is opened vertically on the side of the fixing post 52 facing the conveyor belt. A plurality of equally spaced slots are also opened on one side of the groove. A connecting plate 53 is slidably connected inside the groove. A heating tank 54 is rotatably connected to one side of the connecting plate 53. A nozzle 55 is provided at the bottom of the heating tank 54. A slider matching the groove is provided on one side of the connecting plate 53, so that the connecting plate 53 can slide up and down in the groove. The other side of the connecting plate 53 is rotatably connected to the heating tank 54 through a bearing. The operator can manually rotate the heating tank 54 to adjust the angle of the nozzle 55.

[0032] A delivery pipe 56 is provided on one side of the heating tank 54, and a liquid pump 57 is provided on one side of the delivery pipe 56. The liquid pump 57 is connected to the heating tank 54 through the delivery pipe 56. When the liquid pump 57 is working, it draws the glue from the glue storage container and delivers it to the heating tank 54 through the delivery pipe 56. The heating tank 54 is equipped with a heating element, which can continuously heat the glue to reduce the viscosity of the glue and make it reach a good flow state. Then, it is evenly sprayed onto the packaging box lid through the nozzle 55 at the bottom.

[0033] The connecting plate 53 is equipped with a locking assembly 58. The locking assembly 58 includes a telescopic rod 581 bolted to the connecting plate 53. A return spring 582 is sleeved on the outer wall of the telescopic rod 581. A top pin 583 is provided at one end of the telescopic rod 581. A lever 584 is provided on one side of the top pin 583. When the connecting plate 53 and the heating tank 54 are adjusted to a suitable position and angle, the lever 584 is pulled to make the top pin 583 engage in the slot of the fixing post 52. Under the action of the return spring 582, the connecting plate 53 and the heating tank 54 are firmly locked.

[0034] Specifically, the bottom of the support plate 11 is provided with several support legs 12. The liquid pump 57 is fixedly installed on one side of the support legs 12 by bolts. The support plate 11 is a rectangular flat plate placed horizontally, and the four corners of its bottom are vertically welded with support legs 12. The support legs 12 are cylindrical structures and have anti-slip rubber pads at the bottom to enhance the stability of the equipment when it is placed.

[0035] Specifically, a lifting mechanism 2 is provided on the top of the support plate 11. The lifting mechanism 2 includes a gantry frame 21 bolted to both sides of the support plate 11. The gantry frame 21 has an inverted "U" shape. A threaded rod 22 is provided inside the gantry frame 21. A sliding block 23 is provided on the outer wall of the threaded rod 22. Guide grooves are also provided on both sides of the sliding block 23, which are slidably connected to the guide strips on the inner wall of the gantry frame 21 to prevent the sliding block 23 from rotating during the lifting process. A gear 24 is provided on the top of the sliding block 23. A transmission rod 25 is provided on the top of the gantry frame 21. A bearing motor 27 is provided in the middle of the transmission rod 25. Gears 26 are provided at both ends of the transmission rod 25. Gears 26 and gear 24 together form a gear set. When the bearing motor 27 is started, it drives the transmission rod 25 to rotate. Through the gear set, the threaded rod 22 rotates, thereby realizing the up and down movement of the sliding block 23.

[0036] Specifically, a rotating component 28 is provided on one side of the sliding block 23. The rotating component 28 includes a connecting rod 281 fixedly connected between the sliding blocks 23. A fixing plate 282 is sleeved on the outer wall of the connecting rod 281. A motor 283 is provided on one side of the fixing plate 282. A rotating fan 284 is connected to the output shaft of the motor 283. A pulley 285 is provided on the other side of the fixing plate 282. When the sliding block 23 is raised or lowered to a suitable height, the motor 283 drives the rotating fan 284 to press down and rotate, thus folding down the lids on both sides of the packaging box.

[0037] Specifically, a cover assembly 4 is provided on the top of the first conveyor belt 31. The cover assembly 4 includes a base plate 41 bolted to the first conveyor belt 31. A pneumatic telescopic rod 42 is provided on the top of the base plate 41. A hinge 43 is provided on the telescopic shaft of the pneumatic telescopic rod 42. A pressure plate 44 is bolted to one side of the hinge 43. The pressure plate 44 is connected to the pneumatic telescopic rod 42 through the hinge 43. When the pneumatic telescopic rod 42 extends, it drives the pressure plate 44 to press down. Since the pressure plate 44 is connected through the hinge 43, the angle can be adaptively adjusted according to the shape of the packaging box to ensure that the packaging box cover is completely pressed down.

[0038] Specifically, the top of the second conveyor belt 32 is provided with an extrusion shaft 6. After the packaging box is first extruded on one side by the cover assembly 4, and then the two sides are folded by the rotating fan 284 and glue is sprayed on, the extrusion shaft 6 extrudes the packaging box, so that the cover and the glue on the box body are adhered, and the packaging box is sealed.

[0039] Work steps: 1. According to the specifications and dimensions of the packaging box to be capped, start the first servo motor 34, drive the lead screw 35 to rotate, and drive the first conveyor belt 31 and the second conveyor belt 32 to slide on the guide rod 33. Adjust the distance between the two conveyor belts to match the width of the packaging box.

[0040] 2. Place the packaging box to be capped on the first conveyor belt 31. The second servo motor 36 drives the first conveyor belt 31 and the second conveyor belt 32 to operate. At the same time, the rollers 13 inside the support plate 11 rotate under the gravity of the packaging box, which helps the packaging box move forward smoothly.

[0041] 3. Moving forward to the bottom of the cover assembly 4, the pneumatic telescopic rod 42 extends and drives the pressure plate 44 to press down and flatten the cover on one side through the hinge 43.

[0042] 4. Reaching the bottom of the lifting mechanism 2. The bearing motor 27 drives the transmission rod 25 to rotate, which, through the gear set composed of gear two 26 and gear one 24, drives the threaded rod 22 to rotate, causing the sliding block 23 to move up and down along the threaded rod 22, adjusting the rotating component 28 to the appropriate height.

[0043] 5. When the packaging box reaches the designated position, motor 283 drives fan 284 to rotate. Fan 284 presses down and rotates, folding down the box lids on both sides of the packaging box and flattening them through pulley 285.

[0044] 6. When the packaging box reaches below the glue spraying assembly 5, according to the shape of the packaging box and the glue spraying requirements, the operator pushes the connecting plate 53 to slide in the groove of the fixed column 52 to adjust the horizontal position of the heating tank 54; rotate the heating tank 54 to adjust the angle of the nozzle 55 so that it is aligned with the area to be sprayed on the packaging box lid.

[0045] 7. Start the liquid pump 57 to deliver the heated glue in the heating tank 54 to the nozzle 55 through the delivery pipe 56. The nozzle 55 will evenly spray the glue onto the designated position on the packaging box lid.

[0046] 8. The packaging box with the glue sprayed is conveyed to the top of the second conveyor belt 32 below the extrusion shaft 6. The extrusion shaft 6 performs a second extrusion on the packaging box to further ensure that the lid and the box body fit tightly, completing the automatic lid sealing work of the packaging box, and finally outputting the finished packaging box.

[0047] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic capping structure for packaging boxes, comprising a support assembly (1), characterized in that, The support assembly (1) includes a support plate (11), and a plurality of rollers (13) are rotatably connected inside the support plate (11). A conveying assembly (3) is provided on the top of the rollers (13). The conveying assembly (3) includes a first conveyor belt (31) and a second conveyor belt (32) slidably connected to the top of the support plate (11). Guide rods (33) are provided on both sides of the bottom of the first conveyor belt (31) and the second conveyor belt (32). A lead screw (35) is provided between the guide rods (33). The guide rods (33) and the lead screw (35) are connected to the first conveyor belt (31) and the second conveyor belt (32) through bearing seats. A first servo motor (34) is keyed to one side of the lead screw (35). A second servo motor (36) is provided on one side of the bottom of the first conveyor belt (31) and the second conveyor belt (32). A glue spraying assembly (5) is provided on one side of the first conveyor belt (31). The glue spraying assembly (5) includes a base (51) bolted to one side of the first conveyor belt (31). A fixing column (52) is fixedly connected to the top of the base (51). A groove is provided on one side of the fixing column (52). A slot is provided on one side of the groove. A connecting plate (53) is slidably connected inside the groove. A heating tank (54) is rotatably connected to one side of the connecting plate (53). A nozzle (55) is provided at the bottom of the heating tank (54). A delivery pipe (56) is provided on one side of the heating tank (54), and a liquid pump (57) is provided on one side of the delivery pipe (56). The liquid pump (57) is connected to the heating tank (54) through the delivery pipe (56). The connecting plate (53) is provided with a locking assembly (58) inside. The locking assembly (58) includes a telescopic rod (581) bolted to the connecting plate (53). A return spring (582) is sleeved on the outer wall of the telescopic rod (581). A top pin (583) is provided at one end of the telescopic rod (581). A paddle (584) is provided on one side of the top pin (583).

2. The automatic capping structure for a packaging box according to claim 1, characterized in that, The bottom of the support plate (11) is provided with several support legs (12), and the liquid pump (57) is fixedly installed on one side of the support legs (12) by bolts.

3. The automatic capping structure for packaging boxes according to claim 1, characterized in that, The top of the support plate (11) is provided with a lifting mechanism (2). The lifting mechanism (2) includes a gantry frame (21) bolted to both sides of the support plate (11). The gantry frame (21) is provided with a threaded rod (22). The outer wall of the threaded rod (22) is provided with a sliding block (23). The top of the sliding block (23) is provided with a gear (24). The top of the gantry frame (21) is provided with a transmission rod (25). The middle part of the transmission rod (25) is provided with a bearing motor (27). Both ends of the transmission rod (25) are provided with gears (26). The gears (26) and gears (24) together form a gear set.

4. The automatic capping structure for a packaging box according to claim 3, characterized in that, A rotating assembly (28) is provided on one side of the sliding block (23). The rotating assembly (28) includes a connecting rod (281) fixedly connected between the sliding blocks (23). A fixing plate (282) is sleeved on the outer wall of the connecting rod (281). A motor (283) is provided on one side of the fixing plate (282). A rotating fan (284) is connected to the output shaft of the motor (283). A pulley (285) is provided on the other side of the fixing plate (282).

5. The automatic capping structure for a packaging box according to claim 1, characterized in that, A pressure cap assembly (4) is provided on the top of the first conveyor belt (31). The pressure cap assembly (4) includes a base plate (41) bolted to the first conveyor belt (31). A pneumatic telescopic rod (42) is provided on the top of the base plate (41). A hinge (43) is provided on the telescopic shaft of the pneumatic telescopic rod (42). A pressure plate (44) is bolted to one side of the hinge (43). The pressure plate (44) is connected to the pneumatic telescopic rod (42) through the hinge (43).

6. The automatic capping structure for a packaging box according to claim 1, characterized in that, The top of the second conveyor belt (32) is provided with an extrusion shaft (6).

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