Automatic adhesive tape applying device for carton

Abstract

The automatic adhesive tape applying device comprises a machine body frame, a plurality of transmission rollers capable of rotating relative to the machine body frame are arranged in the machine body frame, and automatic adhesive tape applying assemblies used for applying adhesive tape are arranged on rotating shafts of the transmission rollers. A first conveying device used for conveying cartons is arranged over the transmission rollers, and a lifting assembly is arranged on the upper end face of the machine body frame. The lifting assembly comprises a lifting support capable of moving up and down relative to the machine body frame, a second conveying device is arranged on the lifting support, the second conveying device comprises a main body mounting frame, and an automatic adhesive tape applying assembly used for applying an adhesive tape is arranged in the main body mounting frame; the automatic adhesive tape mounting assembly on the machine body frame and the automatic adhesive tape mounting assembly on the lifting support are symmetrically arranged up and down. A plurality of conveying devices are arranged in the machine body frame to drive the cartons to be guided and limited and drive the cartons to move rapidly. And meanwhile, the carton is glued through the upper automatic gluing assembly and the lower automatic gluing assembly, and gluing efficiency is higher and reliability is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tape application, and particularly relates to an automatic tape application device for cartons. Background Art

[0002] Cartons are usually used to place products in daily production. Generally, cartons are placed in a folded state, and then manually unfolded by workers so that products can be placed in the unfolded cartons. After the products are placed in the cartons, it is necessary to seal the upper and lower cardboard of the cartons. Generally, the tape application devices are single-sided sealing operations, and each time only one end face of the carton can be sealed, and then the carton is controlled to move between multiple tape application devices through a conveyor belt. Each time when applying tape, it is necessary to re-limit and guide, resulting in low overall tape application efficiency. Therefore, it is necessary to design an automatic tape application device for cartons. Summary of the Invention

[0003] In view of the problems existing in the prior art, the utility model designs an automatic tape application device for cartons. In the utility model, a plurality of conveying devices are arranged in the body frame to drive the cartons for guiding and limiting, and drive the cartons to move quickly. At the same time, the cartons are applied with tape by two automatic tape application components, the upper and the lower, and the tape application efficiency is higher and more reliable.

[0004] The invention purpose of the utility model is realized by the following technical scheme: an automatic tape application device for cartons, including a body frame, wherein a plurality of driving rollers capable of rotating relative to the body frame are arranged in the body frame, and an automatic tape application component for applying tape is arranged on the rotating shaft of the driving roller; a first conveying device for conveying cartons is arranged directly above the driving roller, and a lifting component is arranged on the upper end surface of the body frame; the lifting component includes a lifting bracket capable of moving up and down relative to the body frame, and a second conveying device is arranged on the lifting bracket, the second conveying device includes a main body mounting frame, and an automatic tape application component for applying tape is arranged in the main body mounting frame; the automatic tape application components on the body frame and the automatic tape application components on the lifting bracket are symmetrically arranged up and down.

[0005] Preferably, the first conveying device includes paired limiting frames, one end of each limiting frame is provided with a first bracket, and the other end of each limiting frame is provided with a second bracket; a first lead screw rotatably connected to the body frame is arranged on the body frame, and a first guide rod fixedly connected to the body frame is also arranged; the first bracket is sleeved and installed on the first lead screw and is in threaded connection with the first lead screw, and the second bracket is sleeved and installed on the first guide rod and is in sliding connection with the first guide rod; a first driving motor fixedly connected to the second bracket is arranged on the second bracket, and a first conveyor belt capable of rotating relative to the limiting frame is arranged on the limiting frame, and when the first driving motor works, it drives the first conveyor belt to rotate relative to the limiting frame.

[0006] By rotating the first lead screw, the first bracket can be driven to move. When the first bracket moves, the limit frame can be driven to move. There are two sections of threads with opposite directions on the first lead screw. In this way, when the first lead screw rotates, the two first brackets can move closer to or away from each other, so as to conveniently adjust the gap between the two limit frames. The distances between the limit frames are different, so that cartons of different sizes can be limited on the left and right, and the versatility is better. A first conveyor belt is provided on the limit frame, so that it is convenient to drive the carton to move along the axial direction of the limit frame.

[0007] Preferably, a number of first rollers rotatably connected thereto are provided inside the limit frame, and both ends of the first conveyor belt are sleeved and installed on the first rollers; the motor shaft of the first drive motor is connected to one of the first rollers. When the first drive motor drives the first roller to rotate, the first conveyor belt rotates relative to the limit frame; the limit frames are symmetrically distributed on the left and right sides of the automatic tape - sticking assembly; a first handle fixedly connected thereto is provided at the end of the first lead screw.

[0008] When rotating the first handle, the first lead screw can be driven to rotate, so as to conveniently adjust the distance between the two limit frames. When the first drive motor works, it drives the first roller to rotate. When the first roller rotates, it drives the first conveyor belt to rotate relative to the limit frame. The limit frames are symmetrically distributed on the left and right sides of the automatic tape - sticking assembly. In this way, when the automatic tape - sticking assembly tapes the bottom cardboard of the carton, it can accurately limit the left and right sides of the carton.

[0009] Preferably, the lifting assembly further includes a pair of vertically installed seats. A second lead screw rotatably connected thereto is provided inside each vertically installed seat, and a second handle fixedly connected thereto is provided at the end of the second lead screw; both ends of the lifting bracket are respectively installed on the second lead screws adjacent thereto, and the bushing on the lifting bracket is threadedly connected to the second lead screw; when rotating the second handle, the lifting bracket moves up and down relative to the vertically installed seat.

[0010] When rotating the second handle, the second lead screw can be driven to rotate. When the second lead screw rotates, the lifting bracket can move meshingly, so as to conveniently adjust the vertical height of the lifting bracket. A second conveying device is provided on the lifting bracket, and an automatic tape - sticking assembly is provided inside the second conveying device, so that the top cardboard of the carton can be taped.

[0011] Preferably, a moving bracket capable of moving relative to the lifting bracket is provided at the feeding end of the lifting bracket facing the machine body frame, and the moving brackets are arranged in pairs; a guiding wheel capable of rotating relative to each moving bracket is provided on each moving bracket, and the rotating shaft of the guiding wheel is perpendicular to the machine body frame. The moving bracket is sleeved on the lifting bracket, and the moving bracket and the lifting bracket are fixed by bolts. By providing the guiding wheel, it is convenient to align the orientation of the carton, so that the carton can smoothly enter the second conveying device, and then the tape can be reliably applied.

[0012] Preferably, the second conveying device is arranged on the upper end face of the carton; the second conveying device further includes a second driving motor, a second conveyor belt and second rollers; symmetrically arranged driving shafts and driven shafts are provided on the main body mounting frame, and paired second rollers are provided at the ends of the driving shaft and the driven shaft, and a second conveyor belt is sleeved on the outer layer of the second rollers; several second rollers rotatably connected to the main body mounting frame are further provided inside the main body mounting frame, and each second roller is arranged between the driving shaft and the driven shaft; a second driving motor fixedly connected to the main body mounting frame is provided on the main body mounting frame, and when the second driving motor works, it drives the driving shaft to rotate.

[0013] When the second driving motor works, it drives the driving shaft to rotate, the driving shaft rotates to drive the second rollers to rotate, and when the second rollers rotate, they drive the second conveyor belt to rotate relative to the main body mounting frame. In this way, the second conveying device can synchronously drive the carton to move, and the process of applying tape to the carton is faster and more efficient.

[0014] Preferably, gears for driving the two are provided on the driving shaft and the motor shaft of the second driving motor, and when the second driving motor works, it drives the driving shaft to rotate through the gears; when the driving shaft rotates, it drives the second conveyor belt to rotate relative to the main body mounting frame; the driving shaft and the driven shaft are arranged parallel to each other, and the axial direction of the driving shaft is parallel to the moving direction of the carton; a guiding plate is provided at the feeding end of the main body mounting frame facing the machine body frame. When the second driving motor works, it drives the driving shaft to rotate through the gears, and when the driving shaft rotates, it drives the second conveyor belt to rotate. Since the second conveyor belt is arranged directly above the carton, it can press the cardboard, and at the same time, it can drive the carton to move. By providing the guiding plate, it is convenient to limit the cardboard on the upper end face of the carton, so that the second conveyor belt can smoothly press the cardboard of the carton, and then it is convenient for the automatic tape applying assembly to apply tape further.

[0015] Preferably, the automatic tape - applying assembly includes a mounting bracket, a first rolling member, a second rolling member, a shearing bracket and a shearing head; the first rolling member and the second rolling member are respectively arranged at two ends of the mounting bracket, and both are rotatably connected to the mounting bracket; a strip - shaped connecting rod connecting the two is arranged between the first rolling member and the second rolling member, one end of the strip - shaped connecting rod is hinged to the first rolling member, and the other end of the strip - shaped connecting rod is hinged to the second rolling member; the first rolling member is arranged near the feeding end of the machine body frame, a cross bar fixedly connected to the mounting bracket is arranged on the mounting bracket, and a first tension spring connecting the two is arranged between the cross bar and the second rolling member; a shearing bracket rotatably connected to the mounting bracket is arranged on the mounting bracket, and the shearing bracket is arranged between the first rolling member and the second rolling member; a shearing head fixedly connected to the shearing bracket is arranged on the shearing bracket, and a blocking plate pivotally connected to the shearing bracket is further arranged on the shearing bracket, and the shearing head is arranged between the end face of the blocking plate and the shearing bracket; a pivot shaft pivotally connecting the two is arranged between the blocking plate and the shearing bracket, and a torsion spring for resetting is arranged on the pivot shaft; a second tension spring is arranged between the shearing bracket and the mounting bracket.

[0016] When the carton is pushed into the first conveying device and the second conveying device, the first conveyor belt and the second conveyor belt drive the carton to move synchronously, and then the two automatic tape - applying assemblies apply tape synchronously. When the carton enters the automatic tape - applying assembly, the front end face of the carton first contacts the tape on the placing opening, and then the side wall of the carton will synchronously push the first rolling member, and the first rolling member can rotate relative to the mounting bracket. When the first rolling member rotates, it drives the second rolling member to rotate relative to the mounting bracket through the strip - shaped connecting rod. At this time, the first tension spring is in a stretched state. Since both the first rolling member and the second rolling member are attached to the cardboard of the carton at this time, the carton cardboard is in a horizontal attached state, so that the tape can be stably pasted at the gap of the cardboard. When the carton moves relative to the mounting bracket, the carton will push the shearing bracket. The shearing bracket is provided with a shearing head and a blocking plate; one pin of the torsion spring abuts against the outer wall of the blocking plate, and the other pin of the torsion spring abuts against the outer wall of the shearing bracket; when the carton just pushes the shearing bracket, the carton has to push open the blocking plate first so that the cutting teeth of the shearing head can be exposed; the blocking plate is arranged here to prevent the shearing head from directly cutting the tape, so that the tape pasting on the carton is not continuous. When the carton pushes the shearing bracket, the torsion spring and the second tension spring are in an elastic deformation state; when the end of the carton completely disengages from the second rolling member, the second tension spring will control the shearing bracket to reset, so that the shearing head will cut the tape. At the same time, the second rolling member and the first rolling member are reset synchronously, so as to automatically apply tape to the next carton. Here, the two automatic tape - applying assemblies apply tape to seal the two end faces of the carton at the same time, with high operation efficiency and reliability.

[0017] Preferably, the mounting bracket is provided with a mounting wheel for placing a tape roll, and the first rolling member is provided with a placement opening for placing the tape; the mounting bracket is provided with a first limiting projection for restricting the moving stroke of the strip-shaped connecting rod; the mounting bracket is further provided with a second limiting projection for restricting the rotation angle of the shearing bracket.

[0018] By providing the first limiting projection, the stroke of the strip-shaped connecting rod is restricted, thereby controlling the rotation angles of the first rolling member and the second rolling member. By providing the second limiting projection, the rotation angle of the shearing bracket is restricted. By providing the mounting wheel, it is convenient to place the tape roll. By providing the placement opening, it is convenient to pull out the tape and make the tape head face the front side wall of the carton.

[0019] Preferably, the shearing bracket includes a first connecting frame and a second connecting frame. The first connecting frame is rotatably connected to the mounting bracket, and the second connecting frame and the first connecting frame are fixed by screws; the second connecting frame is provided with a shearing head and a blocking plate; one pin of the torsion spring abuts against the blocking plate, and the other pin of the torsion spring abuts against the end face of the second connecting frame; the mounting bracket is provided with a mounting rod, and one end of the second tension spring is connected to the shearing bracket and the other end is connected to the mounting rod.

[0020] Here, the second connecting frame and the first connecting frame are fixed by screws, and the second connecting frame is provided with a kidney-shaped hole, which facilitates adjusting the relative position of the second connecting frame and the first connecting frame and then fixing them by screws. By providing the torsion spring, it is convenient for the blocking plate to abut against the shearing head, thus preventing the shearing head from cutting the tape prematurely.

[0021] Compared with the prior art, the present utility model has the following beneficial effects: 1. By providing the first conveying device, not only can the carton be transported, but also the carton can be limited left and right. The left and right distances of the limiting frame are controlled by the first lead screw, so as to adapt to cartons of different sizes, and the versatility is better. 2. By providing the lifting assembly, it is convenient to adjust the vertical height of the second conveying device, and the versatility is good. 3. The top of the carton is limited by the second conveying device, and at the same time, the carton is driven to move by the second conveyor belt, and the overall moving speed of the carton is faster. 4. The two automatic tape application assemblies arranged side by side up and down apply tape to the carton synchronously, and the tape application efficiency is higher; the automatic tape application assembly has a simple structure, and the tape application process is safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a perspective view of the present utility model;

[0023] Figure 2 is a perspective view of another angle of the present utility model;

[0024] Figure 3This is a perspective view of the present utility model looking from bottom to top;

[0025] Figure 4 This is a perspective view when the first conveying device and the lifting assembly are assembled;

[0026] Figure 5 This is an exploded view of the second conveying device;

[0027] Figure 6 This is a perspective view of the automatic tape - applying assembly;

[0028] Figure 7 This is an exploded view of the automatic tape - applying assembly;

[0029] Figure 8 This is an exploded view of the automatic tape - applying assembly from another perspective;

[0030] Figure 9 This is a perspective view of the body frame;

[0031] Markings in the figure: 1. Body frame; 2. Driving roller; 3. Automatic tape - applying assembly; 31. Mounting bracket; 32. First rolling member; 33. Second rolling member; 34. Shearing bracket; 341. First connecting frame; 342. Second connecting frame; 35. Shearing head; 36. Strip - shaped connecting rod; 37. Cross bar; 38. First tension spring; 39. Blocking plate; 310. Pivoting shaft; 311. Torsion spring; 312. Second tension spring; 313. Mounting wheel; 314. Placing opening; 315. First limit projection; 316. Second limit projection; 317. Mounting rod; 4. First conveying device; 41. Limit frame; 42. First bracket; 43. Second bracket; 44. First driving motor; 45. First conveyor belt; 46. First roller; 47. First handle; 5. Lifting assembly; 51. Lifting bracket; 52. Vertical mounting seat; 53. Second lead screw; 54. Second handle; 55. Moving bracket; 56. Guide wheel; 6. Second conveying device; 61. Main body mounting frame; 62. Second driving motor; 63. Second conveyor belt; 64. Second roller; 65. Driving shaft; 66. Driven shaft; 67. Guide plate; 7. First lead screw; 8. First guide rod. Detailed implementation manners

[0032] The following further describes the present utility model in combination with the embodiments shown in the drawings:

[0033] As Figures 1 to 9As shown in the figure, this embodiment discloses an automatic tape - sticking device for cartons, including a machine body frame 1. Inside the machine body frame 1, there are several driving rollers 2 that can rotate relative to it. An automatic tape - sticking assembly 3 for sticking tape is provided on the rotating shaft of the driving roller 2. A first conveying device 4 for conveying cartons is provided directly above the driving roller 2. A lifting assembly 5 is provided on the upper end surface of the machine body frame 1. The lifting assembly 5 includes a lifting bracket 51 that can move up and down relative to the machine body frame 1. A second conveying device 6 is provided on the lifting bracket 51. The second conveying device 6 includes a main body mounting frame 61. An automatic tape - sticking assembly 3 for sticking tape is provided inside the main body mounting frame 61. The automatic tape - sticking assemblies 3 on the machine body frame 1 and on the lifting bracket 51 are symmetrically arranged up and down.

[0034] The first conveying device 4 includes paired limiting frames 41. One end of each limiting frame 41 is provided with a first bracket 42, and the other end of each limiting frame 41 is provided with a second bracket 43. A first lead screw 7 rotatably connected to the machine body frame 1 is provided on the machine body frame 1, and a first guide rod 8 fixedly connected to it is also provided. The first bracket 42 is sleeved and installed on the first lead screw 7 and is thread - connected to it. The second bracket 43 is sleeved and installed on the first guide rod 8 and is slidably connected to it. A first driving motor 44 fixedly connected to the second bracket 43 is provided. A first conveyor belt 45 that can rotate relative to the limiting frame 41 is provided on the limiting frame 41. When the first driving motor 44 works, it drives the first conveyor belt 45 to rotate relative to the limiting frame 41. Several first rollers 46 rotatably connected to the limiting frame 41 are provided inside the limiting frame 41. Both ends of the first conveyor belt 45 are sleeved and installed on the first rollers 46. The motor shaft of the first driving motor 44 is connected to one of the first rollers 46. When the first driving motor 44 drives the first roller 46 to rotate, the first conveyor belt 45 rotates relative to the limiting frame 41. The limiting frames 41 are symmetrically distributed on the left and right sides of the automatic tape - sticking assembly 3. A first handle 47 fixedly connected to it is provided at the end of the first lead screw 7.

[0035] The lifting assembly 5 further includes paired vertical mounting seats 52. A second lead screw 53 rotatably connected to each vertical mounting seat 52 is provided inside each vertical mounting seat 52. A second handle 54 fixedly connected to it is provided at the end of the second lead screw 53. Both ends of the lifting bracket 51 are respectively installed on the adjacent second lead screws 53, and the bushing on the lifting bracket 51 is thread - connected to the second lead screw 53. When the second handle 54 is rotated, the lifting bracket 51 moves up and down relative to the vertical mounting seat 52. A moving bracket 55 that can move relative to the lifting bracket 51 is provided at the feeding end of the lifting bracket 51 facing the machine body frame 1. The moving brackets 55 are provided in pairs. A guiding wheel 56 that can rotate relative to each moving bracket 55 is provided on each moving bracket 55. The rotating shaft of the guiding wheel 56 is perpendicular to the machine body frame 1.

[0036] The second conveying device 6 is arranged on the upper end face of the carton; the second conveying device 6 further includes a second driving motor 62, a second conveyor belt 63 and second rollers 64; symmetrically arranged driving shafts 65 and driven shafts 66 are provided on the main body mounting frame 61, and paired second rollers 64 are arranged at the ends of the driving shafts 65 and the driven shafts 66. A second conveyor belt 63 is sleeved and installed on the outer layer of the second rollers 64; a number of second rollers 64 rotatably connected to the main body mounting frame 61 are further arranged inside the main body mounting frame 61, and each second roller 64 is arranged between the driving shaft 65 and the driven shaft 66; a second driving motor 62 fixedly connected to the main body mounting frame 61 is provided on the main body mounting frame 61. When the second driving motor 62 works, it drives the driving shaft 65 to rotate. Gears for transmitting the two are provided on the motor shafts of the driving shaft 65 and the second driving motor 62. When the second driving motor 62 works, it drives the driving shaft 65 to rotate through the gears; when the driving shaft 65 rotates, it drives the second conveyor belt 63 to rotate relative to the main body mounting frame 61; the driving shaft 65 and the driven shaft 66 are arranged parallel to each other, and the axial direction of the driving shaft 65 is arranged parallel to the moving direction of the carton; a guide plate 67 is provided at the feeding end of the main body mounting frame 61 facing the machine body frame 1.

[0037] The automatic tape - applying assembly 3 includes a mounting bracket 31, a first rolling member 32, a second rolling member 33, a shearing bracket 34, and a shearing head 35; the first rolling member 32 and the second rolling member 33 are respectively arranged at two ends of the mounting bracket 31, and both are rotatably connected to the mounting bracket 31; a strip - shaped connecting rod 36 connecting the two is arranged between the first rolling member 32 and the second rolling member 33, one end of the strip - shaped connecting rod 36 is hinged to the first rolling member 32, and the other end of the strip - shaped connecting rod 36 is hinged to the second rolling member 33; the first rolling member 32 is arranged near the feeding end of the machine body frame 1, a cross bar 37 fixedly connected to it is arranged on the mounting bracket 31, and a first tension spring 38 connecting the two is arranged between the cross bar 37 and the second rolling member 33; a shearing bracket 34 rotatably connected to the mounting bracket 31 is arranged on the mounting bracket 31, and the shearing bracket 34 is arranged between the first rolling member 32 and the second rolling member 33; a shearing head 35 fixedly connected to it is arranged on the shearing bracket 34, a blocking plate 39 pivotally connected to the shearing bracket 34 is further arranged on the shearing bracket 34, and the shearing head 35 is arranged between the blocking plate 39 and the end face of the shearing bracket 34; a pivot shaft 310 pivotally connecting the two is arranged between the blocking plate 39 and the shearing bracket 34, and a torsion spring 311 for resetting is arranged on the pivot shaft 310; a second tension spring 312 is arranged between the shearing bracket 34 and the mounting bracket 31. The mounting bracket 31 is provided with a mounting wheel 313 for placing a tape roll, and a placing opening 314 for placing the tape is arranged on the first rolling member 32; a first limit projection 315 for limiting the moving stroke of the strip - shaped connecting rod 36 is arranged on the mounting bracket 31; the mounting bracket 31 is further provided with a second limit projection 316 for limiting the rotation angle of the shearing bracket 34. The shearing bracket 34 includes a first connecting frame 341 and a second connecting frame 342, the first connecting frame 341 is rotatably connected to the mounting bracket 31, and the second connecting frame 342 and the first connecting frame 341 are fixed by screws; the second connecting frame 342 is provided with the shearing head 35 and the blocking plate 39; one pin of the torsion spring 311 abuts against the blocking plate 39, and the other pin of the torsion spring 311 abuts against the end face of the second connecting frame 342; a mounting rod 317 is arranged on the mounting bracket 31, one end of the second tension spring 312 is connected to the shearing bracket 34, and the other end is connected to the mounting rod 317.

[0038] The specific operation process of this embodiment is as follows. After the cardboard box is unfolded, the bottom cardboard of the cardboard box is folded, and then the cardboard box is placed on the water flow line and the items are placed. Then the top cardboard of the cardboard box is folded. Then the production line will automatically transport the cardboard box to the driving roller 2 of the machine body frame 1, and the top cardboard of the cardboard box will be automatically flattened by the guide plate 67 on the second conveying device 6. Before placing the cardboard box, the vertical height of the lifting bracket 51 is adjusted in advance, and the left and right spacing of the limiting frame 41 also needs to be adjusted, so that the upper, lower, left and right end faces of the cardboard box are limited. When the cardboard box is pushed into the first conveying device 4 and the second conveying device 6, the first conveyor belt 45 and the second conveyor belt 63 drive the cardboard box to move synchronously, and then the two automatic tape - applying assemblies 3 apply tape synchronously. When the cardboard box enters the automatic tape - applying assembly 3, the front end face of the cardboard box first contacts the tape on the placing opening 314, and then the side wall of the cardboard box will synchronously push the first rolling member 32. The first rolling member 32 can rotate relative to the mounting bracket 31. When the first rolling member 32 rotates, it drives the second rolling member 33 to rotate relative to the mounting bracket 31 through the strip - shaped connecting rod 36. At this time, the first tension spring 38 is in a stretched state. Since both the first rolling member 32 and the second rolling member 33 are in contact with the cardboard of the cardboard box at this time, the cardboard of the cardboard box is in a horizontal contact state, so that the tape can be smoothly pasted at the gap of the cardboard. When the cardboard box moves relative to the mounting bracket 31, the cardboard box will push the shearing bracket 34. The shearing bracket 34 is provided with a shearing head 35 and a blocking plate 39. One pin of the torsion spring 311 abuts against the outer wall of the blocking plate 39, and the other pin of the torsion spring 311 abuts against the outer wall of the shearing bracket 34. When the cardboard box just pushes the shearing bracket 34, the cardboard box needs to first push open the blocking plate 39 so that the teeth of the shearing head 35 can be exposed. Here, the blocking plate 39 is provided to prevent the shearing head 35 from directly cutting the tape, so that the tape pasting on the cardboard box is not continuous. When the cardboard box pushes the shearing bracket 34, the torsion spring 311 and the second tension spring 312 are in an elastic deformation state. When the end of the cardboard box completely disengages from the second rolling member 33, the second tension spring 312 will control the shearing bracket 34 to reset, so that the shearing head 35 will cut the tape. At the same time, the second rolling member 33 and the first rolling member 32 are reset synchronously, so as to apply tape to the next cardboard box automatically. Here, the two automatic tape - applying assemblies 3 apply tape to seal the two end faces of the cardboard box at the same time, with high working efficiency and reliability.

[0039] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the technical field to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar ways to substitute, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic adhesive tape device for cartons, comprising a machine frame (1), wherein the machine frame (1) is provided with a plurality of transmission rollers (2) capable of rotating relative to the machine frame, wherein: An automatic tape applying assembly (3) for applying tape is provided on the rotating shaft of the driving roller (2); a first conveying device (4) for conveying cartons is provided directly above the driving roller (2); a lifting assembly (5) is provided on the upper end surface of the machine frame (1); the lifting assembly (5) comprises a lifting bracket (51) capable of moving up and down relative to the machine frame (1); a second conveying device (6) is provided on the lifting bracket (51); the second conveying device (6) comprises a main body mounting frame (61); an automatic tape applying assembly (3) for applying tape is provided in the main body mounting frame (61); the automatic tape applying assembly (3) on the machine frame (1) and the automatic tape applying assembly (3) on the lifting bracket (51) are symmetrically arranged up and down.

2. The automatic tape-applying device for cartons according to claim 1, characterized in that: The first conveying device (4) comprises a pair of limit frames (41), one end of each limit frame (41) is provided with a first bracket (42), and the other end of each limit frame (41) is provided with a second bracket (43); the body frame (1) is provided with a first screw rod (7) rotatably connected thereto, and is also provided with a first guide rod (8) fixedly connected thereto; the first bracket (42) is sleeved and mounted on the first screw rod (7) and is threadedly connected thereto, and the second bracket (43) is sleeved and mounted on the first guide rod (8) and is slidably connected thereto; the second bracket (43) is provided with a first drive motor (44) fixedly connected thereto, and the limit frame (41) is provided with a first conveyor belt (45) capable of rotating relative thereto, and when the first drive motor (44) is in operation, it drives the first conveyor belt (45) to rotate relative to the limit frame (41).

3. The automatic tape-applying device for cartons according to claim 2, characterized in that: The limiting frame (41) is provided with a plurality of first rollers (46) rotatably connected thereto, and both ends of the first conveyor belt (45) are sleeved and mounted on the first rollers (46); the motor shaft of the first driving motor (44) is connected to one of the first rollers (46), and when the first driving motor (44) drives the first roller (46) to rotate, the first conveyor belt (45) rotates relative to the limiting frame (41); the limiting frame (41) is symmetrically distributed on the left and right sides of the automatic adhesive tape assembly (3); and a first handle (47) fixedly connected thereto is provided at the end of the first screw rod (7).

4. The automatic tape-applying device for cartons according to claim 1, characterized in that: The lifting assembly (5) further comprises vertical mounting seats (52) arranged in pairs, each of the vertical mounting seats (52) being provided with a second screw rod (53) rotatably connected thereto, and a second handle (54) fixedly connected thereto at the end of the second screw rod (53); the two ends of the lifting bracket (51) are respectively mounted on the second screw rod (53) arranged adjacent thereto, and the shaft sleeve on the lifting bracket (51) is threadedly connected to the second screw rod (53); when the second handle (54) is rotated, the lifting bracket (51) moves up and down relative to the vertical mounting seat (52).

5. The automatic tape-applying device for cartons according to claim 4, characterized in that: A movable bracket (55) capable of moving relative to the lifting bracket (51) is provided at the feeding end of the lifting bracket (51) facing the machine body frame (1), and the movable brackets (55) are arranged in pairs; each of the movable brackets (55) is provided with a guide wheel (56) capable of rotating relative thereto, and the rotation axis of the guide wheel (56) is arranged perpendicular to the machine body frame (1).

6. The automatic tape-applying device for cartons according to claim 1, characterized in that: The second conveying device (6) is arranged on the upper end surface of the carton; the second conveying device (6) further comprises a second driving motor (62), a second conveyor belt (63) and a second roller (64); the main body mounting frame (61) is provided with a symmetrically arranged driving shaft (65) and a driven shaft (66), the ends of the driving shaft (65) and the driven shaft (66) are provided with a pair of second rollers (64), and the outer layer of the second rollers (64) is sleeved and mounted with a second conveyor belt (63); the main body mounting frame (61) is further provided with a plurality of second rollers (64) rotatably connected thereto, each of the second rollers (64) is arranged between the driving shaft (65) and the driven shaft (66); the main body mounting frame (61) is provided with a second driving motor (62) fixedly connected thereto, and the second driving motor (62) drives the driving shaft (65) to rotate when working.

7. The automatic tape-applying device for cartons according to claim 6, characterized in that: The driving shaft (65) and the motor shaft of the second driving motor (62) are provided with gears for transmitting the two. When the second driving motor (62) is in operation, the driving shaft (65) is driven to rotate via the gears. When the driving shaft (65) rotates, the second conveyor belt (63) is driven to rotate relative to the main mounting frame (61). The driving shaft (65) and the driven shaft (66) are arranged parallel to each other, and the axial direction of the driving shaft (65) and the direction of movement of the carton are arranged parallel to each other. A guide plate (67) is provided at the feeding end of the main mounting frame (61) facing the machine frame (1).

8. The automatic tape-applying device for cartons according to claim 1, characterized in that: The automatic adhesive tape assembly (3) comprises a mounting bracket (31), a first rolling member (32), a second rolling member (33), a shearing bracket (34) and a shearing head (35); the first rolling member (32) and the second rolling member (33) are respectively arranged at two ends of the mounting bracket (31), and both are rotatably connected to the mounting bracket (31); a strip connecting rod (36) is provided between the first rolling member (32) and the second rolling member (33) to connect the two, one end of the strip connecting rod (36) is hinged to the first rolling member (32), and the other end of the strip connecting rod (36) is hinged to the second rolling member (33); the first rolling member (32) is arranged close to the feeding end of the machine frame (1), and the mounting bracket (31) is provided with a cross bar (37) fixedly connected thereto, and the cross bar (37) and the second rolling member (33) are connected to each other. (33) is provided with a first tension spring (38) connecting the two; the mounting bracket (31) is provided with a shear bracket (34) rotatably connected thereto, the shear bracket (34) is arranged between the first rolling member (32) and the second rolling member (33); the shear bracket (34) is provided with a shear head (35) fixedly connected thereto, the shear bracket (34) is also provided with a blocking plate (39) pivotally connected thereto, the shear head (35) is arranged between the blocking plate (39) and the end surface of the shear bracket (34); a pivot shaft (310) pivotally connecting the blocking plate (39) and the shear bracket (34) is provided between the blocking plate (39) and the shear bracket (34), the pivot shaft (310) being provided with a torsion spring (311) for resetting; a second tension spring (312) is provided between the shear bracket (34) and the mounting bracket (31).

9. The automatic tape-applying device for cartons according to claim 8, characterized in that: The mounting bracket (31) is provided with a mounting wheel (313) for placing a tape roll, and the first rolling member (32) is provided with a placement opening (314) for placing the tape; the mounting bracket (31) is provided with a first limiting protrusion (315) for limiting the movement stroke of the strip connecting rod (36); the mounting bracket (31) is also provided with a second limiting protrusion (316) for limiting the rotation angle of the shear bracket (34).

10. The automatic tape-applying device for cartons according to claim 8, characterized in that: The shear bracket (34) comprises a first connecting frame (341) and a second connecting frame (342); the first connecting frame (341) and the mounting bracket (31) are rotatably connected, and the second connecting frame (342) and the first connecting frame (341) are fixed by screws; the second connecting frame (342) is provided with a shear head (35) and a blocking plate (39); one pin of the torsion spring (311) abuts against the blocking plate (39), and the other pin of the torsion spring (311) abuts against the end surface of the second connecting frame (342); the mounting bracket (31) is provided with a mounting rod (317); one end of the second tension spring (312) is connected to the shear bracket (34), and the other end is connected to the mounting rod (317).

Images