Automatic box sealing machine

Abstract

This utility model discloses an automatic carton sealing machine, including a conveying mechanism, a lifting mechanism, a pressing mechanism, and a sealing mechanism. The pressing and sealing mechanisms are mounted on the lifting mechanism and positioned above the conveying mechanism, arranged from front to back along the carton conveying direction. A pressing plate assembly is mounted on the support frame of the pressing mechanism, comprising a horizontal pressing plate and a vertical pressing plate arranged front to back along the carton conveying direction. A tape mounting component, a front pressing roller assembly, a rear pressing roller assembly, and a cutting assembly are mounted on the support frame of the sealing mechanism, with the cutting assembly positioned between the front and rear pressing roller assemblies. This utility model features a pressing mechanism on the receiving side of the sealing mechanism, which flattens the carton cover, preventing it from lifting and creating gaps between the two mating covers, thus ensuring sealing effectiveness and improving sealing quality.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging box sealing equipment, and in particular to an automatic box sealing machine. Background Technology

[0002] As a sealing equipment, the carton sealing machine is used in packaging production line operations. It is mainly used for sealing and packaging boxes. It can be used as a standalone machine or in conjunction with a production line.

[0003] When sealing boxes with existing sealing machines, the two covers of the packaging box tend to lift up, and gaps may appear between the two covers, which affects the sealing effect and the sealing quality. Utility Model Content

[0004] In response to the shortcomings of existing carton sealing machines, the applicant provides a reasonably structured automatic carton sealing machine with a carton pressing mechanism to flatten the packaging box, prevent the cover of the packaging box from curling up, and ensure the sealing quality.

[0005] The technical solution adopted in this utility model is as follows: An automatic carton sealing machine includes a conveying mechanism, a lifting mechanism, a carton pressing mechanism, and a sealing mechanism. The lifting mechanism is equipped with the carton pressing mechanism and the sealing mechanism, which are located above the conveying mechanism and arranged from front to back along the carton conveying direction. A pressure plate assembly is provided on the support frame of the carton pressing mechanism. The pressure plate assembly includes a horizontal pressure plate and a vertical pressure plate arranged front to back along the carton conveying direction. The horizontal pressure plate is movably connected to the support frame, and the vertical pressure plate is fixedly connected to the support frame. A first cylinder is connected between the horizontal pressure plate and the support frame. A tape mounting component, a front pressure roller assembly, a rear pressure roller assembly, and a cutting component are provided on the support frame of the sealing mechanism. The cutting component is located between the front pressure roller assembly and the rear pressure roller assembly.

[0006] As a further improvement to the above technical solution: The conveying mechanism is also equipped with a sealing mechanism. The sealing mechanism on the lifting mechanism and the sealing mechanism on the conveying mechanism are arranged face to face. In use, one set of sealing mechanisms on the lifting mechanism and the sealing mechanism on the conveying mechanism can be used for sealing, or both sealing mechanisms on the lifting mechanism and the sealing mechanism on the conveying mechanism can be used for sealing at the same time.

[0007] A swing arm is hinged to the support frame of the pressing mechanism. The swing arm is located in front of the material receiving side of the pressing plate assembly. A second cylinder is connected between the swing arm and the support frame. A swing plate is hinged to the lower end of the swing arm. A third cylinder is connected between the swing plate and the swing arm.

[0008] The pressure plate assembly of the pressure box mechanism is equipped with stop bars on both sides.

[0009] A connecting rod connects the front pressure roller assembly and the rear pressure roller assembly of the sealing mechanism, and a spring connects the rear pressure roller assembly to the support frame.

[0010] The front pressure roller assembly includes a front pressure roller connected to the end of a front connecting plate, the front connecting plate being rotatably connected to a front connecting shaft, the front connecting shaft being fixed to a support frame, and a pressure plate being disposed on the front connecting plate, located behind the discharge side of the front pressure roller; the rear pressure roller assembly includes a rear pressure roller connected to the end of a rear connecting plate, the rear connecting plate being rotatably connected to a rear connecting shaft, the rear connecting shaft being fixed to a support frame; one end of a connecting rod is hinged to the front connecting plate, the other end is hinged to the rear connecting plate, and a spring is connected between the rear connecting plate and the support frame.

[0011] The connecting rod is provided with a limiting part, and the support frame is provided with a corresponding limiting post, which cooperates with the limiting part of the connecting rod.

[0012] The sealing mechanism is equipped with a guide assembly on its support frame. The guide assembly includes a guide wheel, a guide plate, and a baffle. The guide wheel and guide plate are set on the tape feeding path, and the baffle is set on the material receiving end of the support frame.

[0013] The lifting mechanism has a liftable main beam mounted on its support frame, which spans across the conveying mechanism. Lifting screws are connected to both ends of the main beam, and the bottom of the lifting screws is connected to the drive shaft via a transmission structure. The drive shaft is connected to the drive mechanism. The pressing box mechanism and the sealing mechanism are connected to the main beam.

[0014] On the conveyor frame of the conveying mechanism, several conveyor rollers are arranged at intervals from front to back along the conveying direction of the packaging boxes; two conveyor belts are arranged face to face above the conveyor rollers, forming a conveying channel for the packaging boxes between the two conveyor belts, and the conveyor belts are connected to the conveyor motor; a sensing component is set on the conveyor frame at the starting end of the conveying of the packaging boxes; support legs are set at the four corners of the conveyor frame, and rollers are connected to the bottom of the support legs.

[0015] The beneficial effects of this utility model are as follows: This invention features a pressing mechanism on the incoming material side of the sealing mechanism. The pressing mechanism flattens the cover of the packaging box, preventing the cover from lifting up and avoiding gaps between the two mating covers of the packaging box, thus ensuring the sealing effect and improving the sealing quality. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention, in which the dashed arrows indicate the conveying direction of the packaging box.

[0017] Figure 2 This is a cross-sectional view of the present invention. The dashed arrow in the figure indicates the conveying direction of the packaging box.

[0018] Figure 3 This is a schematic diagram of the pressure box mechanism.

[0019] Figure 4 This is a cross-sectional view of the sealing mechanism.

[0020] In the picture: 1. Conveying mechanism; 11. Conveying frame; 111. Support leg; 112. Roller; 12. Conveying roller; 13. Conveying belt; 14. Base; 15. Conveying motor; 16. Sensing component; 2. Lifting mechanism; 21. Support frame; 22. Main beam; 23. Lifting screw; 24. Drive shaft; 3. Pressing box mechanism; 31. Support frame; 32. Pressing plate assembly; 321. Horizontal pressing plate; 322. Vertical pressing plate; 323. Connecting plate; 324. First cylinder; 33. Swing arm; 34. Second cylinder; 35. Swinging pressing plate; 36. Third cylinder; 37. Stop bar; 4. Sealing mechanism; 4a. Upper sealing mechanism; 4b. Lower sealing mechanism; 41. Support frame; 42. Tape mounting components; 43. Front pressure roller assembly; 431. Front pressure roller; 432. Front connecting plate; 433. Front connecting shaft; 434. Pressure plate; 44. Rear pressure roller assembly; 441. Rear pressure roller; 442. Rear connecting plate; 443. Rear connecting shaft; 45. Connecting rod; 451. Limiting part; 46. Spring; 47. Cutting assembly; 48. Limiting post; 49. Guide assembly; 491. Guide roller; 492. Guide plate; 493. Baffle. Detailed Implementation

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0022] like Figure 1 , Figure 2 As shown, the automatic box sealing mechanism of this utility model includes a conveying mechanism 1, a lifting mechanism 2, a pressing mechanism 3, and a sealing mechanism 4. In this embodiment, the sealing mechanism 4 is provided in two sets: a sealing mechanism 4a is provided on the lifting mechanism 2, which seals the top cover of the box; the pressing mechanism 3 and the sealing mechanism 4a are connected to the lifting mechanism 2 and are located above the conveying mechanism 1; the pressing mechanism 3 and the sealing mechanism 4 are arranged from front to back along the conveying direction of the box; a sealing mechanism 4b is provided on the conveying mechanism 1, which seals the bottom cover of the box; the sealing mechanisms 4a and 4b have the same structure and are arranged facing each other; during operation, one set of sealing mechanisms 4a or 4b can be used to seal the top or bottom surface according to actual needs, or both sets can be used simultaneously to seal the top and bottom surfaces at the same time.

[0023] like Figure 1 , Figure 2As shown, several conveyor rollers 12 are spaced apart from front to back along the conveying direction of the packaging boxes on the conveyor frame 11 of the conveying mechanism 1. Above the conveyor rollers 12, two conveyor belts 13 are spaced apart facing each other. Each conveyor belt 13 is connected to the conveyor frame 11 via a base 14. The conveyor belts 13 are parallel to the conveying direction of the packaging boxes, forming a conveying channel between the two conveyor belts 13. Each conveyor belt 13 is mounted on several drive wheels. The drive wheel of the conveyor belt 13 is connected to a conveyor motor 15, which drives the conveyor belt 13 to move and convey the packaging boxes forward. A sensing element 16 is provided on the conveyor frame 11 at the starting end of the conveying of the packaging boxes. The sensing element 16 is used to sense whether the packaging boxes have been fed into the conveyor frame 11. Support legs 111 are provided at the four corners of the conveyor frame 11. Rollers 112 are connected to the bottom of the support legs 111, allowing the conveyor frame 11 to be moved to a designated working position via the rollers 112.

[0024] like Figure 1 , Figure 2 As shown, a liftable main beam 22 is mounted on a vertical support 21 of the lifting mechanism 2. The main beam 22 spans above the conveying mechanism 1 and is perpendicular to the conveying position of the packaging box. Lifting screws 23 are respectively mounted on the columns on both sides of the support 21, and the two ends of the main beam 22 are respectively connected to the lifting screws 23. A drive shaft 24 is horizontally mounted at the bottom of the support 21. The bottoms of the two lifting screws 23 are respectively connected to the drive shaft 24 through a gear transmission structure. The drive shaft 24 is connected to the drive mechanism (not shown in the figure). The drive mechanism drives the lifting screws 23 to rotate through the drive shaft 24, thereby driving the main beam 22 to rise and fall.

[0025] like Figure 1 , Figure 2 As shown, the pressing mechanism 3 and the sealing mechanism 4 are located on opposite sides of the main beam 22 and are fixedly connected to the main beam 22 respectively.

[0026] like Figures 1 to 3As shown, one end of the support frame 31 of the box pressing mechanism 3 is fixedly connected to the main beam 22. A pressure plate assembly 32 is provided at the bottom of the support frame 31. The pressure plate assembly 32 includes a horizontal pressure plate 321 and a vertical pressure plate 322. The horizontal pressure plate 321 and the vertical pressure plate 322 are arranged back and forth along the conveying direction of the packaging box. The horizontal pressure plate 321 is movably connected to the support frame 31, and the vertical pressure plate 322 is fixedly connected to the support frame 31. The horizontal pressure plate 321 is used to flatten the cover of the packaging box, and the vertical pressure plate 322 is used to flatten the joint part of the cover on both sides of the packaging box, which facilitates the sealing mechanism 4 to seal and improves the sealing effect. A vertical connecting plate 323 is connected to the horizontal pressure plate 321. A first cylinder 324 is connected between the connecting plate 323 and the support frame 31. The cylinder seat of the first cylinder 324 is connected to the support frame 31, and the piston rod of the first cylinder 324 is connected to the connecting plate 323. The first cylinder 324 drives the horizontal pressure plate 321 to move through the connecting plate 323, adjusting the position of the horizontal pressure plate 321 to ensure that the cover of the packaging box is flattened during the sealing process, thereby improving the sealing quality. A swing arm 33 is hinged to the other end of the support frame 31. The swing arm 33 hangs down in front of the material receiving side of the pressure plate assembly 32. A second cylinder 34 is connected between the swing arm 33 and the support frame 31. The second cylinder 34 can drive the swing arm 33 to swing and adjust the angle. A swing pressure plate 35 is hinged to the lower end of the swing arm 33. A third cylinder 36 connects the swing pressure plate 35 and the swing arm 33. The third cylinder 36 can drive the swing pressure plate 35 to swing, extend downward from the swing arm 33, or retract into the inner area of ​​the swing arm 33. The swing pressure plate 35 can press the material that has been lifted out of the packaging box back into the box, preventing the material from being exposed outside the packaging box during sealing and ensuring the sealing effect. A stop bar 37 is provided on the opposite outer sides of the pressure plate assembly 32. One end of the stop bar 37 is fixedly connected to the main beam 22, and the other end extends forward towards the material direction of the packaging box. The stop bars 37 are arranged on the outer side of the pressure plate assembly 32 to prevent parts of the packaging box not pressed by the pressure plate assembly 32 from lifting, ensuring the pressing effect and the sealing effect.

[0027] like Figure 1 , Figure 2 , Figure 4As shown, one end of the support frame 41 of the sealing mechanism 4 is fixedly connected to the main beam 22. The support frame 41 is equipped with a tape mounting component 42 for mounting the tape roll for sealing the box. A front pressure roller assembly 43 and a rear pressure roller assembly 44 are spaced apart along the conveying direction of the packaging box on the support frame 41. A connecting rod 45 connects the front pressure roller assembly 43 and the rear pressure roller assembly 44, and a spring 46 connects the rear pressure roller assembly 44 to the support frame 41. A cutting component 47 is provided on the support frame 41 in the area between the front pressure roller assembly 43 and the rear pressure roller assembly 44. The front pressure roller assembly 43 includes a front pressure roller 431, a front connecting plate 432, a front connecting shaft 433, and a pressure plate 434. The front pressure roller 431 is rotatably connected to the end of the front connecting plate 432, and the front connecting plate 432 is rotatably connected to the front connecting shaft 433. The front connecting shaft 433 is fixed to the support frame 41. The pressure plate 434 is disposed on the front connecting plate 432 and located behind the discharge side of the front pressure roller 431. The rear pressure roller assembly 44 includes a rear pressure roller 441, a rear connecting plate 442, and a rear connecting shaft 443. The rear pressure roller 441 is rotatably connected to the end of the rear connecting plate 442, and the rear connecting plate 442 is rotatably connected to the rear connecting shaft 443. The rear connecting shaft 443 is fixed to the support frame 41. One end of the connecting rod 45 is hinged to the front connecting plate 432, and the other end is hinged to the rear connecting plate 442. The spring 46 is connected between the rear connecting plate 442 and the support frame 41. During sealing, when the front connecting plate 432 rotates, it drives the rear connecting plate 442 to rotate through the connecting rod 45, while simultaneously compressing the spring 46. After sealing, the spring 46 drives the rear connecting plate 442 to return to its original position, and the connecting rod 45 drives the front connecting plate 432 to return to its original position. A limit part 451 is provided on the connecting rod 45, and a corresponding limit post 48 is provided on the support frame 41. The limit post 48 cooperates with the limit part 451 of the connecting rod 45 to limit the movement of the front pressure roller assembly 43 and the rear pressure roller assembly 44, ensuring that the movement is in place. A guide assembly 49 is provided on the support frame 41. The guide assembly 49 includes a guide wheel 491, a guide plate 492, and a baffle 493. The guide wheel 491 and the guide plate 492 are set on the tape feeding path and are used to guide the tape. The baffle 493 is set on the material receiving end of the support frame 41 and is used to guide the packaging box to the sealing mechanism 4.

[0028] In actual use, the packaging box to be sealed is sent to the starting end of the conveying mechanism 1. The conveying motor 15 drives the conveyor belt 13 to move and convey the packaging box forward. The packaging box is first pressed flat by the box pressing mechanism 3, and then sent to the sealing mechanism 4 for automatic sealing. After the tape sealing is completed, the tape is cut by the cutting component 47 to complete the sealing of the packaging box.

[0029] This invention provides a pressing mechanism 3 on the material receiving side of the sealing mechanism 4. The pressing mechanism 3 flattens the cover of the packaging box, preventing the cover from lifting up and preventing gaps between the two mating covers of the packaging box, thus ensuring the sealing effect and improving the sealing quality.

[0030] The above description is an explanation of the present utility model and not a limitation thereof. The present utility model can be modified in any form without departing from its spirit.

Claims

1. An automatic carton sealing machine, characterized in that: It includes a conveying mechanism (1), a lifting mechanism (2), a box pressing mechanism (3), and a sealing mechanism (4); the lifting mechanism (2) is equipped with a box pressing mechanism (3) and a sealing mechanism (4), which are located above the conveying mechanism (1). The box pressing mechanism (3) and the sealing mechanism (4) are arranged from front to back along the conveying direction of the packaging box. The support frame (31) of the box pressing mechanism (3) is provided with a pressure plate assembly (32). The pressure plate assembly (32) includes a horizontal pressure plate (321) and a vertical pressure plate (322) arranged back and forth along the packing box conveying direction. The horizontal pressure plate (321) is movably connected to the support frame (31), and the vertical pressure plate (322) is fixedly connected to the support frame (31). A first cylinder (324) is connected between the horizontal pressure plate (321) and the support frame (31). The sealing mechanism (4) has a tape mounting component (42), a front pressure roller assembly (43), a rear pressure roller assembly (44), and a cutting assembly (47) on its support frame (41). The cutting assembly (47) is located between the front pressure roller assembly (43) and the rear pressure roller assembly (44).

2. The automatic carton sealing machine according to claim 1, characterized in that: The conveying mechanism (1) is also equipped with a sealing mechanism (4). The sealing mechanism (4) on the lifting mechanism (2) and the sealing mechanism (4) on the conveying mechanism (1) are arranged face to face. When in use, one of the sealing mechanisms (4) on the lifting mechanism (2) and the sealing mechanism (4) on the conveying mechanism (1) is used for sealing, or the sealing mechanisms (4) on the lifting mechanism (2) and the sealing mechanism (1) are used for sealing at the same time.

3. The automatic carton sealing machine according to claim 1, characterized in that: A swing arm (33) is hinged on the support frame (31) of the pressure box mechanism (3). The swing arm (33) is located in front of the material receiving side of the pressure plate assembly (32). A second cylinder (34) is connected between the swing arm (33) and the support frame (31). A swing pressure plate (35) is hinged to the lower end of the swing arm (33). A third cylinder (36) is connected between the swing pressure plate (35) and the swing arm (33).

4. The automatic carton sealing machine according to claim 1, characterized in that: The pressure plate assembly (32) of the pressure box mechanism (3) is provided with baffles (37) on both sides.

5. The automatic carton sealing machine according to claim 1 or 2, characterized in that: A connecting rod (45) connects the front pressure roller assembly (43) and the rear pressure roller assembly (44) of the sealing mechanism (4), and a spring (46) connects the rear pressure roller assembly (44) and the support frame (41).

6. The automatic carton sealing machine according to claim 4, characterized in that: The front pressure roller assembly (43) includes a front pressure roller (431) connected to the end of the front connecting plate (432), the front connecting plate (432) being rotatably connected to the front connecting shaft (433), the front connecting shaft (433) being fixed to the support frame (41), and a pressure plate (434) being disposed on the front connecting plate (432) and located behind the discharge side of the front pressure roller (431); the rear pressure roller assembly (44) includes a rear pressure roller (441) connected to the end of the rear connecting plate (442), the rear connecting plate (442) being rotatably connected to the rear connecting shaft (443), the rear connecting shaft (443) being fixed to the support frame (41); a connecting rod (45) is hinged at one end to the front connecting plate (432) and at the other end to the rear connecting plate (442), and a spring (46) is connected between the rear connecting plate (442) and the support frame (41).

7. The automatic carton sealing machine according to claim 4, characterized in that: A limiting part (451) is provided on the connecting rod (45), and a corresponding limiting post (48) is provided on the support frame (41). The limiting post (48) cooperates with the limiting part (451) of the connecting rod (45).

8. The automatic carton sealing machine according to claim 1, characterized in that: The sealing mechanism (4) has a guide assembly (49) on its support frame (41). The guide assembly (49) includes a guide wheel (491), a guide plate (492), and a baffle (493). The guide wheel (491) and the guide plate (492) are located on the tape feeding path, and the baffle (493) is located at the material receiving end of the support frame (41).

9. The automatic carton sealing machine according to claim 1, characterized in that: The support (21) of the lifting mechanism (2) is equipped with a liftable main beam (22), which spans across the conveying mechanism (1); the two ends of the main beam (22) are connected to lifting screws (23), and the bottom of the lifting screws (23) is connected to the transmission shaft (24) through the transmission structure. The transmission shaft (24) is connected to the drive mechanism; the pressure box mechanism (3) and the sealing mechanism (4) are connected to the main beam (22).

10. The automatic carton sealing machine according to claim 1, characterized in that: On the conveyor frame (11) of the conveying mechanism (1), several conveyor rollers (12) are arranged at intervals from front to back along the conveying direction of the packaging box; two conveyor belts (13) are arranged face to face above the conveyor rollers (12), and a packaging box conveying channel is formed between the two conveyor belts (13). The conveyor belts (13) are connected to the conveying motor (15); a sensing component (16) is arranged on the conveyor frame (11) at the starting end of the conveying of the packaging box; support legs (111) are arranged at the four corners of the conveyor frame (11), and rollers (112) are connected to the bottom of the support legs (111).

Images