Cover folding carton sealing machine and carton sealing method thereof

Abstract

The invention discloses a cover folding and box sealing machine, and belongs to the technical field of packaging, the cover folding and box sealing machine comprises a conveying mechanism, a cover folding mechanism, a tape pasting mechanism and a control system, the conveying mechanism comprises a plurality of supporting rollers, two first limiting assemblies and two second limiting assemblies, and the supporting rollers are arranged on the rack at equal intervals in the direction perpendicular to the length direction of the rack; the two first limiting assemblies are oppositely arranged on the cover folding station and abut against the two side edges of the carton correspondingly for conveying, and the two second limiting assemblies are oppositely arranged on the tape pasting station and abut against the two side edges of the carton correspondingly for conveying. The distance between the two first limiting assemblies and the distance between the two second limiting assemblies are adjusted to adapt to cartons of different sizes; the two first conveying belts and the two second conveying belts abut against the two side edges of the carton correspondingly and drive the carton to move, the overall structure of the device is simple, the occupied space is small, observation and operation are convenient, and the carton sealing efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging, and in particular to a flap folding carton sealer and a carton sealing method for the above flap folding carton sealer. Background Art

[0002] A flap folding carton sealer is a device for automatically folding the top of a carton that has completed product packaging and automatically sticking tape. It uses tape to seal the carton, and the sealing effect is flat, regular, and beautiful. However, the existing flap folding carton sealers are inconvenient to operate and difficult to adjust to seal cartons of different sizes.

[0003] The patent document with the publication number CN209127016U discloses a fully automatic flap folding carton sealer, and the patent document with the publication number CN209127057U discloses a conveying device of a flap folding carton sealer. After placing the carton on the conveyor belt, the conveyor belt drives the carton to move. By setting telescopic rods, the distance between the limiting blocks can be adjusted by driving the limiting blocks to move, so as to adapt to cartons of different sizes. However, the overall structure of the device is relatively complex, occupies a large space, is inconvenient to observe and operate, and reduces the carton sealing efficiency. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, one of the purposes of the present invention is to provide a flap folding carton sealer that can adapt to cartons of different sizes, has a relatively simple overall structure, occupies a small space, is convenient to observe and operate, and improves the carton sealing efficiency.

[0005] In order to overcome the deficiencies of the prior art, the second purpose of the present invention is to provide a carton sealing method for a flap folding carton sealer that can adapt to cartons of different sizes, has a relatively simple overall structure, occupies a small space, is convenient to observe and operate, and improves the carton sealing efficiency.

[0006] One of the purposes of the present invention is achieved by adopting the following technical solutions:

[0007] A flap folding carton sealer includes a frame, and also includes a conveying mechanism, a flap folding mechanism, a tape sticking mechanism, and a control system.

[0008] The frame is sequentially provided with a flap folding station and a tape sticking station along its length direction.

[0009] The conveying mechanism includes a plurality of support rollers, two first limiting components, and two second limiting components. The support rollers are equidistantly and spacedly arranged on the frame along a direction perpendicular to the length direction of the frame.

[0010] Two of the first limiting components are oppositely arranged at the folding cover station and respectively abut against two side edges of the carton for conveying. The first limiting component includes a first motor, a first driving shaft, a first driven shaft, a first conveyor belt, and a plurality of first guiding shafts. The first driving shaft, the first driven shaft, and the plurality of first guiding shafts are all vertically arranged on the machine frame. The first motor is in transmission connection with the first driving shaft. One end of the first conveyor belt is wound around the first driving shaft, and the other end is wound around the first driven shaft. The plurality of first guiding shafts are arranged at equal intervals between the first driving shaft and the first driven shaft.

[0011] Two of the second limiting components are oppositely arranged at the tape pasting station and respectively abut against two side edges of the carton for conveying. The second limiting component includes a second motor, a second driving shaft, a second driven shaft, a second conveyor belt, and a plurality of second guiding shafts. The second driving shaft, the second driven shaft, and the plurality of second guiding shafts are all vertically arranged on the machine frame. The second motor is in transmission connection with the second driving shaft. One end of the second conveyor belt is wound around the second driving shaft, and the other end is wound around the second driven shaft. The plurality of second guiding shafts are arranged at equal intervals between the second driving shaft and the second driven shaft.

[0012] The folding cover mechanism is arranged at the folding cover station. The folding cover mechanism includes a mounting frame, two mounting blocks, a front cover pressing plate, a rear cover punching rod, two side adjusting rods, a photoelectric switch, and a telescopic cylinder. The mounting frame is mounted on the machine frame. The two mounting blocks are oppositely mounted at the bottom of the mounting frame. The mounting blocks are provided with internal threads, and the side adjusting rods are provided with external threads. The two side adjusting rods are respectively in threaded connection with the two mounting blocks and are used for pressing and folding the left and right covers at the top of the carton. The front cover pressing plate is mounted on the mounting frame and is located between the two side adjusting rods and is used for pressing and folding the front cover at the top of the carton. The telescopic cylinder is arranged on the mounting frame. The rear cover punching rod is rotatably mounted on the mounting frame. The photoelectric switch is used for sensing the signal of folding the rear cover at the top of the carton and is in communication connection with the control system. The control system drives the telescopic cylinder to move and drives the rear cover punching rod to rotate to press and fold the rear cover at the top of the carton.

[0013] The tape pasting mechanism includes a bracket, a mounting plate, a tape reel, a glue guiding roller, a glue feeding roller, a glue discharging roller, a connecting rod, a spring, a blade, a cylinder, and a sensor. The bracket is mounted on the frame, the cylinder is vertically mounted on the bracket, the mounting plate is arranged at the end of the cylinder, the tape reel, the glue feeding roller, the glue discharging roller, and the glue guiding roller are arranged on the mounting plate through a plurality of the connecting rods. The glue feeding roller and the glue discharging roller are horizontally arranged below the mounting plate and face the supporting roller. The tape reel is used for placing the tape, and the tape is led out from the glue feeding roller through the glue guiding roller. The sensor is used for sensing the signal that the gluing on the top of the carton is completed and is communicatively connected with the control system. The control system controls the connecting rod to drive the blade to move through the spring.

[0014] Further, the first limiting assembly further includes a first material guiding plate and a first protective plate. The first material guiding plate is arranged at the front end of the first driven shaft, and the first protective plate is sleeved outside the first conveyor belt. The second limiting assembly further includes a second material guiding plate and a second protective plate. The second material guiding plate is arranged at the front end of the second driven shaft, and the second protective plate is sleeved outside the second conveyor belt.

[0015] Further, the carton closing machine further includes a capping mechanism. The capping mechanism is arranged between the folding mechanism and the tape pasting mechanism. The capping mechanism includes a cross bar and two capping assemblies. The cross bar is mounted on the frame, and the two capping assemblies are slidably arranged at both ends of the cross bar. The capping assembly includes a slider, a connecting frame, and a plurality of nozzles. The slider is slidably mounted on the cross bar, the connecting frame is fixedly connected with the slider, and the plurality of nozzles are equidistantly arranged on the connecting frame.

[0016] The second object of the present invention is achieved by adopting the following technical solution:

[0017] A carton closing method for a carton closing machine implemented by using the carton closing machine as described in any one of the above, includes the following steps:

[0018] S1: According to the length of the carton, adjust the distance between the two first limiting assemblies, the distance between the two second limiting assemblies, and adjust the rotation angles of the two side adjusting rods to change the distance between the two side adjusting rods; according to the width of the carton, adjust the distance between the glue feeding roller and the glue discharging roller;

[0019] S2: Start the first motor. The first motor drives the first driving shaft to rotate, which drives the first conveyor belt to rotate. After placing the carton on the support rollers, the two first conveyor belts respectively contact the two sides of the carton and drive the carton to move. When the carton moves to the position of the pressing front cover plate, the photoelectric switch senses the signal, and the control system controls the telescopic cylinder to push the rear cover pressing rod to rotate. The rear cover pressing rod presses down the rear cover at the top of the carton. Then, the two side adjusting rods respectively press and fold the left and right covers at the top of the carton. The carton moves with the first conveyor belt. When the photoelectric switch no longer senses the carton, it turns off, and the telescopic cylinder also turns off accordingly. The rear cover pressing rod returns to its initial position;

[0020] S3: When the carton enters the gluing station, start the second motor. The second motor drives the second driving shaft to rotate, which drives the second conveyor belt to rotate. The control system controls the cylinder to move downward. The cylinder drives the mounting plate to move downward. The first tape sticking position at the top of the carton touches the tape on the glue feeding roller, adheres to the tape and drives the tape to stretch and unfold. When the second tape sticking position at the top of the carton touches the glue discharging roller, the sensor senses the signal. The control system controls the connecting rod to drive the blade to act through the spring. The blade cuts off the tape, and the last short tape is attached to the rear end of the top of the carton by relying on the glue discharging roller.

[0021] Compared with the prior art, the carton closing machine of the present invention adapts to carton sizes of different lengths and sizes by adjusting the distance between the two first limiting components and the distance between the two second limiting components, adapts to carton sizes of different lengths and sizes by adjusting the rotation angles of the two side adjusting rods to change the distance between the two side adjusting rods, and adapts to carton sizes of different widths by adjusting the distance between the first glue feeding roller and the first glue discharging roller; the two first conveyor belts and the two second conveyor belts respectively contact the two sides of the carton and drive the carton to move. The overall structure of the device is relatively simple, occupies less space, is convenient for observation and operation, and improves the carton closing efficiency. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the carton closing machine of the present invention;

[0023] Figure 2 is Figure 1 a partial structural diagram of the carton closing machine;

[0024] Figure 3 is Figure 1 a schematic structural diagram of the conveying mechanism of the carton closing machine;

[0025] Figure 4 is Figure 1 a schematic structural diagram of the lid folding mechanism of the carton closing machine;

[0026] Figure 5 is Figure 4Another structural schematic diagram of the lid folding mechanism of the lid folding carton sealer;

[0027] Figure 6 Flow chart of the carton sealing method of the lid folding carton sealer of the present invention;

[0028] Figure 7 Structural schematic diagram of the double-column lid folding carton sealer of the present invention;

[0029] Figure 8 For Figure 7 Partial structural schematic diagram of the double-column lid folding carton sealer;

[0030] Figure 9 For Figure 7 Structural schematic diagram of the first tape sticking mechanism and the second tape sticking mechanism of the double-column lid folding carton sealer;

[0031] Figure 10 For Figure 7 Another structural schematic diagram of the first tape sticking mechanism and the second tape sticking mechanism of the double-column lid folding carton sealer;

[0032] Figure 11 Flow chart of the carton sealing method of the double-column lid folding carton sealer of the present invention.

[0033] In the figure: 10, frame;

[0034] 20, conveying mechanism;

[0035] 21, support roller;

[0036] 22, first limiting component; 221, first motor; 222, first driving shaft; 223, first driven shaft; 224, first guiding shaft; 225, first conveyor belt; 226, first material guiding plate; 227, first protective plate;

[0037] 23, second limiting component; 231, second motor; 232, second driving shaft; 233, second driven shaft; 234, second guiding shaft; 235, second conveyor belt; 236, second material guiding plate; 237, second protective plate;

[0038] 30, lid folding mechanism; 31, mounting frame; 32, mounting block; 33, pressing front cover plate; 34, back cover hitting rod; 35, side adjusting rod; 36, photoelectric switch; 37, telescopic cylinder;

[0039] 40, first lid pressing mechanism; 41, first cross bar; 42, first lid pressing component; 421, first slider; 422, first connecting frame; 423, first nozzle;

[0040] 50. First tape - attaching mechanism; 501. First bracket; 502. First mounting plate; 503. First tape reel; 504. First glue - guiding roller; 505. First glue - feeding roller; 506. First glue - discharging roller; 507. First connecting rod; 508. First spring; 509. First blade; 510. First cylinder; 511. First sensor;

[0041] 60. Second gland - pressing mechanism; 61. Second cross - bar; 62. Second gland - pressing assembly; 621. Second slider; 622. Second connecting frame; 623. Second nozzle;

[0042] 70. Second tape - attaching mechanism; 701. Second bracket; 702. Second mounting plate; 703. Second tape reel; 704. Second glue - guiding roller; 705. Second glue - feeding roller; 706. Second glue - discharging roller; 707. Second connecting rod; 708. Second spring; 709. Second blade; 710. Second cylinder; 711. Second sensor. Detailed implementation manners

[0043] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0044] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0046] Figures 1-5This is the folding cover carton sealer of the present invention, including a frame 10, a conveying mechanism 20, a folding cover mechanism 30, a first tape pasting mechanism 50 and a control system.

[0047] In this embodiment:

[0048] The frame 10 is successively provided with a folding cover station, a first tape pasting station and a second tape pasting station along its length direction.

[0049] The conveying mechanism 20 includes a plurality of support rollers 21, two first limiting components 22 and two second limiting components 23.

[0050] The support rollers 21 are equidistantly and spacedly arranged on the frame 10 along the direction perpendicular to the length direction of the frame 10.

[0051] The two first limiting components 22 are oppositely arranged at the folding cover station and respectively contact the two side edges of the carton for conveying. The first limiting component 22 includes a first motor 221, a first driving shaft 222, a first driven shaft 223, a first conveyor belt 225, a plurality of first guiding shafts 224, a first guiding plate 226 and a first protective plate 227.

[0052] The first driving shaft 222, the first driven shaft 223 and the plurality of first guiding shafts 224 are all vertically arranged on the frame 10. The first motor 221 is in transmission connection with the first driving shaft 222. One end of the first conveyor belt 225 is wound around the first driving shaft 222, and the other end is wound around the first driven shaft 223. The plurality of first guiding shafts 224 are equidistantly and spacedly arranged between the first driving shaft 222 and the first driven shaft 223. The first guiding plate 226 is arranged at the front end of the first driven shaft 223. The first protective plate 227 is sleeved outside the first conveyor belt 225 to play a protective role.

[0053] The two second limiting components 23 are oppositely arranged at the tape pasting station and respectively contact the two side edges of the carton for conveying. The second limiting component 23 includes a second motor 231, a second driving shaft 232, a second driven shaft 233, a second conveyor belt 235, a plurality of second guiding shafts 234, a second guiding plate 236 and a second protective plate 237.

[0054] The second driving shaft 232, the second driven shaft 233, and multiple second guiding shafts 234 are all vertically arranged on the frame 10. The second motor 231 is in transmission connection with the second driving shaft 232. One end of the second conveyor belt 235 is wound around the second driving shaft 232, and the other end is wound around the second driven shaft 233. Multiple second guiding shafts 234 are arranged at equal intervals between the second driving shaft 232 and the second driven shaft 233. The second material guiding plate 236 is arranged at the front end of the second driven shaft 233. The second protection plate 237 is sleeved outside the second conveyor belt 235 to play a protective role. In this application, by adjusting the distance between the two first limiting components 22 and the distance between the two second limiting components 23, the sizes of cartons with different lengths can be adapted. Different from the mechanism of driving the carton to run by the conveyor belt at the bottom of the frame 10 in the traditional way, the observation and operation are more convenient.

[0055] The lid folding mechanism 30 is arranged at the lid folding station. The lid folding mechanism 30 includes a mounting frame 31, two mounting blocks 32, a front cover pressing plate 33, a rear cover punching rod 34, two side adjusting rods 35, a photoelectric switch 36, and a telescopic cylinder 37.

[0056] The mounting frame 31 is mounted on the frame 10. Two mounting blocks 32 are oppositely mounted at the bottom of the mounting frame 31. The mounting blocks 32 are provided with internal threads, and the side adjusting rods 35 are provided with external threads. The two side adjusting rods 35 are respectively in threaded connection with the two mounting blocks 32 and are used for pressing and folding the left and right lids at the top of the carton. The front cover pressing plate 33 is mounted on the mounting frame 31 and is located between the two side adjusting rods 35 and is used for pressing and folding the front lid at the top of the carton. The telescopic cylinder 37 is arranged on the mounting frame 31. The rear cover punching rod 34 is rotatably mounted on the mounting frame 31. The photoelectric switch is used to sense the signal of folding the rear lid at the top of the carton and is in communication connection with the control system. The control system drives the telescopic cylinder 37 to move and drives the rear cover punching rod 34 to rotate to press and fold the rear lid at the top of the carton. In this application, by adjusting the rotation angle of the two side adjusting rods 35 to change the distance between the two side adjusting rods 35, the sizes of cartons with different lengths can be adapted.

[0057] The first capping mechanism 40 is arranged between the flap folding mechanism 30 and the first tape pasting mechanism 50. The first capping mechanism 40 includes a first cross bar 41 and two first capping assemblies 42. The first cross bar 41 is installed on the frame 10. The two first capping assemblies 42 are slidably arranged at both ends of the first cross bar 41. Each first capping assembly 42 includes a first slider 421, a first connecting frame 422, and a plurality of first nozzles 423. The first slider 421 is slidably installed on the first cross bar 41. The first connecting frame 422 is fixedly connected to the first slider 421. The plurality of first nozzles 423 are equidistantly arranged on the first connecting frame 422. During the movement of the carton from the flap folding station to the first tape pasting station, the left and right covers at the top of the carton are prone to warping due to the loss of the restraint of the two side adjusting rods 35, which affects the subsequent tape pasting operation. Therefore, the first nozzles 423 are provided to blow air on the left and right covers at the top of the carton to make them flat, and the distance between the two first capping assemblies 42 is adjustable to adapt to cartons of different lengths and sizes.

[0058] The first tape pasting mechanism 50 includes a first bracket 501, a first mounting plate 502, a first tape reel 503, a first guide roller 504, a first glue inlet roller 505, a first glue outlet roller 506, a first connecting rod 507, a first spring 508, a first blade 509, a first cylinder 510, and a first sensor 511.

[0059] The first bracket 501 is installed on the frame 10. The first cylinder 510 is vertically installed on the first bracket 501. The first mounting plate 502 is arranged at the end of the first cylinder 510. The first tape reel 503, the first glue inlet roller 505, the first glue outlet roller 506, and the first guide roller 504 are arranged on the first mounting plate 502 through a plurality of first connecting rods 507. The first glue inlet roller 505 and the first glue outlet roller 506 are horizontally arranged below the first mounting plate 502 and face the support roller 21. The first tape reel 503 is used to place the tape, and the tape is led out from the first glue inlet roller 505 through the first guide roller 504. The first sensor 511 is used to sense the signal indicating the completion of tape pasting on the top of the carton and is communicatively connected to the control system. The control system controls the first connecting rod 507 to drive the first blade 509 to move through the first spring 508. In this application, the distance between the first glue inlet roller 505 and the first glue outlet roller 506 is adjusted to adapt to cartons of different widths and sizes.

[0060] As Figure 6 shown, this application also provides a carton sealing method for a flap folding carton sealer, which is implemented using any one of the above flap folding carton sealers, and includes the following steps:

[0061] S1: According to the length of the carton, adjust the distance between the two first limiting components 22 and the distance between the two second limiting components 23, and adjust the rotation angles of the two side adjusting rods 35 to change the distance between the two side adjusting rods 35; according to the width of the carton, adjust the distance between the glue inlet roller and the glue outlet roller;

[0062] S2: Start the first motor 221. The first motor 221 drives the first driving shaft 222 to rotate and drives the first conveyor belt 225 to rotate. After placing the carton on the support roller 21, the two first conveyor belts 225 respectively contact the two side edges of the carton and drive the carton to move. When the carton moves to the pressing front cover plate 33, the photoelectric switch 36 senses the signal, and the control system controls the telescopic cylinder 37 to push the back cover pressing rod 34 to rotate. The back cover pressing rod 34 presses down the back cover at the top of the carton, and then the two side adjusting rods 35 respectively press and fold the left and right covers at the top of the carton. The carton moves with the first conveyor belt 225. When the photoelectric switch 36 no longer senses the carton, it closes, and the telescopic cylinder 37 also closes accordingly, and the back cover pressing rod 34 returns to its initial position;

[0063] S3: When the carton enters the glue pasting station, start the second motor 231. The second motor 231 drives the second driving shaft 232 to rotate and drives the second conveyor belt 235 to rotate. The control system controls the first cylinder 510 to move downward. The first cylinder 510 drives the first mounting plate 502 to move downward. The first tape pasting position at the top of the carton touches the tape on the first glue inlet roller 505, adheres to the tape and drives the tape to stretch and unfold; when the second tape pasting position at the top of the carton touches the first glue outlet roller 506, the first sensor 511 senses the signal, and the control system controls the first connecting rod 507 to drive the first blade 509 to act through the first spring 508. The first blade 509 cuts off the tape and pastes the last short tape on the rear end of the top of the carton by relying on the first glue outlet roller 506.

[0064] In this application, by adjusting the distance between the two first limiting components 22 and the distance between the two second limiting components 23, the carton sizes of different lengths can be adapted. By adjusting the rotation angles of the two side adjusting rods 35 to change the distance between the two side adjusting rods 35, the carton sizes of different lengths can be adapted. By adjusting the distance between the first glue inlet roller 505 and the first glue outlet roller 506 to adapt to the carton sizes of different widths; the two first conveyor belts 225 and the two second conveyor belts 235 respectively contact the two side edges of the carton and drive the carton to move. The overall structure of the device is relatively simple, occupies less space, is convenient for observation and operation, and improves the carton sealing efficiency.

[0065] As Figures 7-10 shown, this application also provides a double-column flap sealing machine, which includes any one of the above flap sealing machines, and also includes a second cover pressing mechanism 60 and a second tape pasting mechanism 70.

[0066] The second capping mechanism 60 is arranged between the first tape pasting mechanism 50 and the second tape pasting mechanism 70. The second capping mechanism 60 includes a second cross bar 61 and two second capping components 62. The second cross bar 61 is installed on the frame 10. The two second capping components 62 are slidably arranged at both ends of the second cross bar 61. Each second capping component 62 includes a second slider 621, a second connecting frame 622, and a plurality of second nozzles 623. The second slider 621 is slidably installed on the second cross bar 61. The second connecting frame 622 is fixedly connected to the second slider 621. The plurality of second nozzles 623 are arranged on the second connecting frame 622 at equal intervals. During the movement of the carton from the first tape pasting station to the second tape pasting station, the left and right covers of the top of the carton are prone to warping due to the loss of the restraint of the two side adjusting rods 35 on them, which affects the subsequent tape pasting operation. Therefore, the second nozzles 623 are provided to blow air on the left and right covers of the top of the carton to make them flat.

[0067] The second tape pasting mechanism 70 is arranged at the second tape pasting station and on one side of the first tape pasting mechanism 50. The second tape pasting mechanism 70 includes a second bracket 701, a second mounting plate 702, a second tape reel 703, a second guide roller 704, a second glue feeding roller 705, a second glue discharging roller 706, a second connecting rod 707, a second spring 708, a second blade 709, a second cylinder 710, and a second sensor 711.

[0068] The second bracket 701 is installed on the frame 10. The second cylinder 710 is vertically installed on the second bracket 701. The second mounting plate 702 is arranged at the end of the second cylinder 710. The second tape reel 703, the second glue feeding roller 705, the second glue discharging roller 706, and the second guide roller 704 are arranged on the second mounting plate 702 through a plurality of second connecting rods 707. The second glue feeding roller 705 and the second glue discharging roller 706 are horizontally arranged below the second mounting plate 702 and face the support roller 21. The second tape reel 703 is used to place the tape, and the tape is led out from the second glue feeding roller 705 through the second guide roller 704. The second sensor 711 is used to sense the signal of the completion of tape pasting on the top of the carton and is communicatively connected to the control system. The control system controls the second connecting rod 707 to drive the second blade 709 to move through the second spring 708. In this application, the distance between the second glue feeding roller 705 and the second glue discharging roller 706 is adjusted to adapt to the carton sizes of different widths.

[0069] When the remaining amount of the adhesive tape on the first tape applying mechanism 50 is less than the preset value, manually cut the adhesive tape between the first tape reel 503 and the first tape guiding roller 504. The control system controls the first air cylinder 510 to move upward. The first air cylinder 510 drives the first mounting plate 502 to move upward, and manually replace the adhesive tape. At the same time, the control system controls the second tape applying mechanism 70 to work. In this application, the staff can visually observe the usage of the adhesive tape on the first tape applying mechanism 50 and the second tape applying mechanism 70 from above the frame 10, which is convenient for cutting the adhesive tape and the operation is convenient.

[0070] As Figure 11 shown, this application also provides a carton sealing method for a double-column folding cover carton sealer, which is implemented using any one of the above double-column folding cover carton sealers, and includes the following steps:

[0071] S1: According to the length of the carton, adjust the distance between the two first limiting components 22, the distance between the two second limiting components 23, and adjust the rotation angles of the two side adjusting rods 35 to change the distance between the two side adjusting rods 35; according to the width of the carton, adjust the distance between the first glue feeding roller 505 and the first glue discharging roller 506, and the distance between the second glue feeding roller 705 and the second glue discharging roller 706;

[0072] S2: Start the first motor 221. The first motor 221 drives the first driving shaft 222 to rotate and drives the first conveyor belt 225 to rotate. After placing the carton on the support roller 21, the two first conveyor belts 225 respectively contact the two sides of the carton and drive the carton to move. When the carton moves to the front cover pressing part 33, the photoelectric switch 36 senses the signal. The control system controls the telescopic air cylinder 37 to push the rear cover pressing rod 34 to rotate. The rear cover pressing rod 34 presses down the rear cover on the top of the carton. Then the two side adjusting rods 35 respectively press and fold the left and right covers on the top of the carton. The carton moves with the first conveyor belt 225. When the photoelectric switch 36 no longer senses the carton, it is turned off, and the telescopic air cylinder 37 is also turned off accordingly. The rear cover pressing rod 34 returns to the initial position;

[0073] S3: When the carton enters the first tape pasting station, start the second motor 231. The second motor 231 drives the second driving shaft 232 to rotate and drives the second conveyor belt 235 to rotate. The control system controls the first air cylinder 510 to move downward. The first air cylinder 510 drives the first mounting plate 502 to move downward. The first tape pasting position on the top of the carton touches the adhesive tape on the first glue feeding roller 505, adheres to the adhesive tape and drives the adhesive tape to stretch and unfold; when the second tape pasting position on the top of the carton touches the first glue discharging roller 506, the first sensor 511 senses the signal. The control system controls the first connecting rod 507 to drive the first blade 509 to act through the first spring 508. The first blade 509 cuts off the adhesive tape and adheres the last short adhesive tape to the rear end of the top of the carton by relying on the first glue discharging roller 506;

[0074] S4: When the remaining amount of the adhesive tape on the first tape applying mechanism 50 is less than a preset value, manually cut the adhesive tape between the first tape reel 503 and the first tape guiding roller 504. The control system controls the first air cylinder 510 to move upward, and the first air cylinder 510 drives the first mounting plate 502 to move upward, and manually replace the adhesive tape. At the same time, the control system controls the second air cylinder 710 to move downward, and the second air cylinder 710 drives the second mounting plate 702 to move downward. The first tape applying position on the top of the carton touches the adhesive tape on the second adhesive tape feeding roller 705, adheres to the adhesive tape and drives the adhesive tape to stretch and unfold. When the second tape applying position on the top of the carton touches the second adhesive tape discharging roller 706, the second sensor 711 senses the signal, and the control system controls the second connecting rod 707 to drive the second blade 709 to act through the second spring 708. The second blade 709 cuts off the adhesive tape, and the last short adhesive tape is attached to the rear end of the top of the carton by the second adhesive tape discharging roller 706.

[0075] In this application, by setting the first tape applying mechanism 50 and the second tape applying mechanism 70, and controlling the switching operation of the first tape applying mechanism 50 and the second tape applying mechanism 70 through the control system, only the adhesive tape on one tape applying mechanism needs to be replaced, without affecting the operation of the other tape applying mechanism, ensuring that the case sealer sequentially and orderly completes the operations of folding the lid and applying the adhesive tape, without increasing the operation time of the equipment, and improving the production efficiency.

[0076] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A folding cover carton sealer, comprising a frame (10), characterized in that: It further includes a conveying mechanism (20), a lid folding mechanism (30), a tape sticking mechanism, and a control system. The rack (10) is sequentially provided with a lid folding station and a tape sticking station along its length direction. The conveying mechanism (20) includes a plurality of support rollers (21), two first limiting components (22), and two second limiting components (23). The support rollers (21) are equidistantly and spacedly arranged on the rack (10) along a direction perpendicular to the length direction of the rack (10). The two first limiting components (22) are oppositely arranged at the lid folding station and are respectively in contact with two side edges of the carton for conveying. The first limiting component (22) includes a first motor (221), a first driving shaft (222), a first driven shaft (223), a first conveyor belt (225), and a plurality of first guiding shafts (224). The first driving shaft (222), the first driven shaft (223), and the plurality of first guiding shafts (224) are all vertically arranged on the rack (10). The first motor (221) is in transmission connection with the first driving shaft (222). One end of the first conveyor belt (225) is wound around the first driving shaft (222), and the other end is wound around the first driven shaft (223). The plurality of first guiding shafts (224) are equidistantly and spacedly arranged between the first driving shaft (222) and the first driven shaft (223). The two second limiting components (23) are oppositely arranged at the tape sticking station and are respectively in contact with two side edges of the carton for conveying. The second limiting component (23) includes a second motor (231), a second driving shaft (232), a second driven shaft (233), a second conveyor belt (235), and a plurality of second guiding shafts (234). The second driving shaft (232), the second driven shaft (233), and the plurality of second guiding shafts (234) are all vertically arranged on the rack (10). The second motor (231) is in transmission connection with the second driving shaft (232). One end of the second conveyor belt (235) is wound around the second driving shaft (232), and the other end is wound around the second driven shaft (233). The plurality of second guiding shafts (234) are equidistantly and spacedly arranged between the second driving shaft (232) and the second driven shaft (233). The folding cover mechanism (30) is arranged at the folding cover station. The folding cover mechanism (30) includes a mounting frame (31), two mounting blocks (32), a front cover pressing plate (33), a rear cover hitting rod (34), two side adjusting rods (35), a photoelectric switch (36), and a telescopic cylinder (37). The mounting frame (31) is mounted on the machine frame (10). The two mounting blocks (32) are oppositely mounted at the bottom of the mounting frame (31). The mounting blocks (32) are provided with internal threads, and the side adjusting rods (35) are provided with external threads. The two side adjusting rods (35) are respectively threadedly connected to the two mounting blocks (32) and are used for pressing and folding the left and right covers at the top of the carton. The front cover pressing plate (33) is mounted on the mounting frame (31) and is located between the two side adjusting rods (35) and is used for pressing and folding the front cover at the top of the carton. The telescopic cylinder (37) is arranged on the mounting frame (31). The rear cover hitting rod (34) is rotatably mounted on the mounting frame (31). The photoelectric switch is used for sensing the signal of folding the rear cover at the top of the carton and is communicatively connected to the control system. The control system drives the telescopic cylinder (37) to move and drives the rear cover hitting rod (34) to rotate to press and fold the rear cover at the top of the carton. The tape pasting mechanism includes a bracket, a mounting plate, a tape reel, a glue guiding roller, a glue feeding roller, a glue discharging roller, a connecting rod, a spring, a blade, a cylinder, and a sensor. The bracket is mounted on the machine frame (10). The cylinder is vertically mounted on the bracket. The mounting plate is arranged at the end of the cylinder. The tape reel, the glue feeding roller, the glue discharging roller, and the glue guiding roller are arranged on the mounting plate through a plurality of the connecting rods. The glue feeding roller and the glue discharging roller are horizontally arranged below the mounting plate and face the supporting roller (21). The tape reel is used for placing the tape, and the tape is led out from the glue feeding roller through the glue guiding roller. The sensor is used for sensing the signal of completing tape pasting at the top of the carton and is communicatively connected to the control system. The control system controls the connecting rod to drive the blade to move through the spring.

2. The folder-sealer according to claim 1, wherein: The first limiting component (22) further includes a first guiding plate (226) and a first protection plate (227). The first guiding plate (226) is arranged at the front end of the first driven shaft (223). The first protection plate (227) is sleeved outside the first conveyor belt (225). The second limiting component (23) further includes a second guiding plate (236) and a second protection plate (237). The second guiding plate (236) is arranged at the front end of the second driven shaft (233). The second protection plate (237) is sleeved outside the second conveyor belt (235).

3. The folder-sealer according to claim 1, wherein: The folding cover carton sealer further includes a capping mechanism, which is arranged between the folding cover mechanism (30) and the taping mechanism. The capping mechanism includes a cross bar and two capping components. The cross bar is installed on the frame (10), and the two capping components are slidably arranged at both ends of the cross bar. Each capping component includes a slider, a connecting frame, and a plurality of nozzles. The slider is slidably installed on the cross bar, the connecting frame is fixedly connected to the slider, and the plurality of nozzles are arranged at equal intervals on the connecting frame.

4. A method for sealing a carton with a folding lid sealer, which is implemented using the folding lid sealer according to any one of claims 1 to 3, characterized in that: It includes the following steps: S1: According to the length of the carton, adjust the distance between the two first limiting components (22) and the distance between the two second limiting components (23), and adjust the rotation angle of the two side adjusting rods (35) to change the distance between the two side adjusting rods (35); according to the width of the carton, adjust the distance between the glue inlet roller and the glue outlet roller; S2: Start the first motor (221). The first motor (221) drives the first driving shaft (222) to rotate and drives the first conveyor belt (225) to rotate. After placing the carton on the support roller (21), the two first conveyor belts (225) respectively contact the two sides of the carton and drive the carton to move. When the carton moves to the front cover pressing plate (33), the photoelectric switch (36) senses the signal, and the control system controls the telescopic cylinder (37) to push the rear cover pressing rod (34) to rotate. The rear cover pressing rod (34) presses down the rear cover at the top of the carton, and then the two side adjusting rods (35) respectively press and fold the left and right covers at the top of the carton. The carton moves with the first conveyor belt (225). When the photoelectric switch (36) no longer senses the carton, it is turned off, and the telescopic cylinder (37) is also turned off accordingly, and the rear cover pressing rod (34) returns to its initial position; S3: When the carton enters the gluing station, start the second motor (231). The second motor (231) drives the second driving shaft (232) to rotate and drives the second conveyor belt (235) to rotate. The control system controls the cylinder to move downward, and the cylinder drives the mounting plate to move downward. The first tape sticking position at the top of the carton touches the tape on the glue inlet roller, adheres to the tape and drives the tape to stretch and unfold; when the second tape sticking position at the top of the carton touches the glue outlet roller, the sensor senses the signal, and the control system controls the connecting rod to drive the blade to act through the spring. The blade cuts off the tape, and the last short tape is adhered to the rear end of the top of the carton by the glue outlet roller.

5. A double-column folding cover carton sealer, comprising the folding cover carton sealer according to any one of claims 1 to 3, characterized in that: The double-column flap-sealing machine further includes a second tape pasting mechanism (70). The machine frame (10) is further provided with a second tape pasting station. The tape pasting mechanism is the first tape pasting mechanism (50), and the tape pasting station is the first tape pasting station. The second tape pasting mechanism (70) is arranged at the second tape pasting station and on one side of the first tape pasting mechanism (50). The second tape pasting mechanism (70) includes a second bracket (701), a second mounting plate (702), a second tape reel (703), a second rubber guiding roller (704), a second rubber feeding roller (705), a second rubber discharging roller (706), a second connecting rod (707), a second spring (708), a second blade (709), a second air cylinder (710), and a second sensor (711). The second bracket (701) is installed on the machine frame (10). The second air cylinder (710) is vertically installed on the second bracket (701). The second mounting plate (702) is arranged at the end of the second air cylinder (710). The second tape reel (703), the second rubber feeding roller (705), the second rubber discharging roller (706), and the second rubber guiding roller (704) are arranged on the second mounting plate (702) through a plurality of the second connecting rods (707). The second rubber feeding roller (705) and the second rubber discharging roller (706) are horizontally arranged below the second mounting plate (702) and face the supporting roller (21). The second tape reel (703) is used for placing the tape, and the tape is led out from the second rubber feeding roller (705) through the second rubber guiding roller (704). The second sensor (711) is used for sensing the signal that the gluing on the top of the carton is completed and is communicatively connected to the control system. The control system controls the second connecting rod (707) to drive the second blade (709) to move through the second spring (708).

6. The double-column folding lid carton sealer according to claim 5, characterized in that: The double-column flap-sealing machine further includes a second lid pressing mechanism (60). The lid pressing mechanism is the first lid pressing mechanism (40). The second lid pressing mechanism (60) is arranged between the first tape pasting mechanism (50) and the second tape pasting mechanism (70). The second lid pressing mechanism (60) includes a second cross bar (61) and two second lid pressing assemblies (62). The second cross bar (61) is installed on the machine frame (10). The two second lid pressing assemblies (62) are slidably arranged at both ends of the second cross bar (61). The second lid pressing assembly (62) includes a second slider (621), a second connecting frame (622), and a plurality of second nozzles (623). The second slider (621) is slidably installed on the second cross bar (61). The second connecting frame (622) is fixedly connected to the second slider (621). The plurality of second nozzles (623) are equidistantly arranged on the second connecting frame (622).

7. A method for sealing boxes of a double-column folding lid box sealer, implemented using the double-column folding lid box sealer as described in claim 5, characterized in that: Including the following steps: S1: Adjust the distance between the two first limiting components (22) and the distance between the two second limiting components (23) according to the length of the carton, and adjust the rotation angles of the two side adjusting rods (35) to change the distance between the two side adjusting rods (35); adjust the distance between the first glue applicator roller (505) and the first glue discharging roller (506), and the distance between the second glue applicator roller (705) and the second glue discharging roller (706) according to the width of the carton. S2: Start the first motor (221), the first motor (221) drives the first driving shaft (222) to rotate and drives the first conveyor belt (225) to rotate. After placing the carton on the supporting rollers (21), the two first conveyor belts (225) respectively contact the two side edges of the carton and drive the carton to move. When the carton moves to the front cover pressing plate (33), the photoelectric switch (36) senses the signal, and the control system controls the telescopic cylinder (37) to push the back cover pressing rod (34) to rotate. The back cover pressing rod (34) presses down the back cover at the top of the carton, and then the two side adjusting rods (35) respectively press and fold the left and right covers at the top of the carton. The carton moves along with the first conveyor belt (225). When the photoelectric switch (36) no longer senses the carton, it is turned off, and the telescopic cylinder (37) is also turned off accordingly. The back cover pressing rod (34) returns to the initial position. S3: When the carton enters the first glue pasting station, start the second motor (231), the second motor (231) drives the second driving shaft (232) to rotate and drives the second conveyor belt (235) to rotate. The control system controls the first cylinder (510) to move downward. The first cylinder (510) drives the first mounting plate (502) to move downward. The first glue pasting tape position at the top of the carton touches the tape on the first glue applicator roller (505), adheres to the tape and drives the tape to stretch and unfold. When the second glue pasting tape position at the top of the carton touches the first glue discharging roller (506), the first sensor (511) senses the signal. The control system controls the first connecting rod (507) to drive the first blade (509) to act through the first spring (508). The first blade (509) cuts off the tape and adheres the last short tape section to the rear end of the top of the carton by relying on the first glue discharging roller (506). S4: When the remaining amount of the tape on the first tape attaching mechanism (50) is less than a preset value, manually cut the tape between the first tape reel (503) and the first tape guiding roller (504). The control system controls the first cylinder (510) to move upward, and the first cylinder (510) drives the first mounting plate (502) to move upward, and manually replace the tape. At the same time, the control system controls the second cylinder (710) to move downward, and the second cylinder (710) drives the second mounting plate (702) to move downward. The first tape attaching position on the top of the carton touches the tape on the second tape feeding roller (705), adheres to the tape and drives the tape to stretch and unfold. When the second tape attaching position on the top of the carton touches the second tape discharging roller (706), the second sensor (711) senses a signal, and the control system controls the second connecting rod (707) to drive the second blade (709) to act through the second spring (708). The second blade (709) cuts off the tape, and the last short tape is attached to the rear end of the top of the carton by the second tape discharging roller (706).

Images