A carton sealing apparatus

Abstract

The utility model relates to packing equipment technical field provides a kind of carton sealing equipment, including rack, PLC control module being set on rack, folding box module and rubberizing module, still including first conveying module, detection module and second conveying module being set on rack;Rack has the first direction and the second direction of horizontal extension and perpendicular, first conveying module and second conveying module are arranged along the first direction;First conveying module includes the first conveyor belt and the second conveyor belt of interval arrangement along the second direction;Detection module is used to detect whether the left cover of carton, the right cover of carton is flush in the second direction;Detection module, first conveyor belt and second conveyor belt are all with PLC control module electric connection;PLC control module can separately adjust the conveying speed of first conveyor belt and second conveyor belt.The equipment is adjusted to flush by the cover on both sides of carton, makes sealing flush, avoids partial adhesive belt to be suspended or wrinkle, to ensure the sealing property of carton, improves the quality of encapsulation.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, specifically a box sealing device. Background Technology

[0002] Traditional carton sealing methods often require a large amount of manual labor, which is not only inefficient but also prone to problems such as incomplete sealing and carton damage. With the booming development of automated machinery production, the market demand for packaging equipment is increasing, especially for efficient and precise carton sealing equipment. For example, Chinese patent CN206954644U discloses a fast automatic carton sealing machine, which includes a frame, a feeding plate and a discharging plate connected to the front and rear ends of the frame, and a sealing channel running through the middle of the frame from front to back. An upper core and a lower core are arranged opposite each other in the middle of the sealing channel, and the upper and lower cores are staggered. The upper core is mounted on the frame via a height adjustment mechanism. Belt conveyor mechanisms are provided on the left and right sides of the lower core along the sealing channel. The two belt conveyor mechanisms are arranged opposite each other on both sides of the lower core and are synchronously driven by a bidirectional screw mechanism. A pressure sensor is provided on the upper surface of the feeding plate, and a first proximity switch is provided at the lower front end of the upper core. A second proximity switch is provided at the front end of each of the two belt conveyor mechanisms.

[0003] However, during the operation of the tape sealing machine, the cover plates on both sides of the carton may become uneven. If this situation is ignored and the carton is sealed directly, the seal will not be tight and the tape will not adhere completely. This not only makes the carton less airtight, but also makes the crooked seal look unsightly, making the packaging look rough and reducing customer satisfaction.

[0004] Therefore, the technical problem to be solved in this case is: how to solve the problem of poor sealing quality caused by uneven cover plates on both sides of the carton. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a carton sealing device. This device adjusts the cover plates on both sides of the carton to be flush, so that the seal is flush and avoids some tape being suspended or wrinkled, thereby ensuring the airtightness of the carton and improving the packaging quality.

[0006] A carton sealing device includes a frame, a PLC control module, a carton folding module, and an adhesive application module mounted on the frame, and further includes a first conveying module, a detection module, and a second conveying module mounted on the frame; the frame has a horizontally extending and perpendicular first direction and a second direction, the first conveying module and the second conveying module are arranged along the first direction; the carton folding module is arranged directly above the first conveying module; the adhesive application module is arranged directly above the second conveying module;

[0007] The first conveying module includes a first conveyor belt and a second conveyor belt arranged at intervals along the second direction; a first carton channel is formed between the first conveyor belt and the second conveyor belt;

[0008] The detection module is used to detect whether the left cover and right cover of the carton are flush in the second direction; the detection module, the first conveyor belt and the second conveyor belt are all electrically connected to the PLC control module; the PLC control module can adjust the conveying speed of the first conveyor belt and the second conveyor belt independently.

[0009] In the aforementioned carton sealing equipment, the detection module includes a first sensor and a second sensor symmetrically arranged on both sides of the first carton channel; both the first sensor and the second sensor are electrically connected to the PLC control module; the first carton channel has a first detection position and a second detection position arranged along the second direction; when the carton is conveyed along the first carton channel, the right cover of the carton passes through the first detection position, and the left cover of the carton passes through the second detection position;

[0010] The first sensor is used to detect whether the right cover of the carton has reached the first detection position and to send a first signal, and the second sensor is used to detect whether the left cover of the carton has reached the second detection position and to send a second signal.

[0011] The PLC control module is capable of receiving the first signal and the second signal;

[0012] Furthermore, when the PLC control module receives both the first signal and the second signal simultaneously, the left and right cover plates of the carton are aligned in the second direction.

[0013] When the PLC control module receives the first signal first or the second signal first, the left cover plate and the right cover plate of the carton are not aligned in the second direction; the PLC control module controls the conveying speed of the first conveyor belt and / or the conveying speed of the second conveyor belt to form a differential speed.

[0014] In the aforementioned sealing equipment, a first support is provided on the frame, the first support including a fixing rod, a first mounting plate, and a second mounting plate; the length direction of the fixing rod extends along the second direction; there are multiple fixing rods, all of which are disposed on the frame and spaced apart along the first direction; the first mounting plate is connected to the multiple fixing rods and is suspended above the frame; the second mounting plate is connected to the multiple fixing rods and is suspended above the frame; the first mounting plate and the second mounting plate are spaced apart along the second direction; the first conveyor belt is disposed on the first mounting plate; and the second conveyor belt is disposed on the second mounting plate.

[0015] In the aforementioned box sealing equipment, the first conveyor belt includes a first drive motor, a first drive roller, a first driven roller, and a first belt; the first drive roller and the first driven roller are both rotatably connected to the first mounting plate; the first drive roller and the first driven roller are connected via the first belt drive; the first drive motor is mounted on the first mounting plate, and the output end of the first drive motor is connected to the first drive roller and used to drive the first drive roller to rotate;

[0016] The second conveyor belt includes a second drive motor, a second drive roller, a second driven roller, and a second belt; the second drive roller and the second driven roller are both rotatably connected to the second mounting plate; the second drive roller and the second driven roller are connected by the second belt drive; the second drive motor is mounted on the second mounting plate, and the output end of the second drive motor is connected to the second drive roller and used to drive the second drive roller to rotate;

[0017] Both the first drive motor and the second drive motor are electrically connected to the PLC control module.

[0018] In the aforementioned carton sealing equipment, the second conveying module includes a third conveyor belt and a fourth conveyor belt; the third conveyor belt is disposed on the first mounting plate; the first conveyor belt and the third conveyor belt are arranged along the first direction; the fourth conveyor belt is disposed on the second mounting plate; the second conveyor belt and the fourth conveyor belt are arranged along the first direction; a second carton channel is formed between the third conveyor belt and the fourth conveyor belt; the first carton channel and the second carton channel are connected along the first direction.

[0019] In the aforementioned box sealing equipment, the third conveyor belt includes a third drive motor, a third drive roller, a third driven roller, and a third belt; the third drive roller and the third driven roller are both rotatably connected to the first mounting plate; the third drive roller and the third driven roller are connected via the third belt drive; the third drive motor is mounted on the first mounting plate, and the output end of the third drive motor is connected to the third drive roller and used to drive the third drive roller to rotate;

[0020] The fourth conveyor belt includes a fourth drive motor, a fourth drive roller, a fourth driven roller, and a fourth belt; the fourth drive roller and the fourth driven roller are both rotatably connected to the second mounting plate; the fourth drive roller and the fourth driven roller are connected by the fourth belt drive; the fourth drive motor is mounted on the second mounting plate, and the output end of the fourth drive motor is connected to the fourth drive roller and used to drive the fourth drive roller to rotate;

[0021] The third drive motor and the fourth drive motor are both electrically connected to the PLC control module.

[0022] In the aforementioned sealing equipment, the first bracket further includes a first connecting seat and a second connecting seat; there are multiple first connecting seats and multiple second connecting seats; both ends of the fixing rod are rotatably connected to one side of the frame, and one end of the fixing rod along its length is provided with a handle; the fixing rod is provided with a first external thread and a second external thread; the first external thread and the second external thread are in opposite directions; the first connecting seat is threadedly connected to the fixing rod through the first external thread; the second connecting seat is threadedly connected to the fixing rod through the second external thread; the first mounting plate is fixedly connected to multiple first connecting seats; the second mounting plate is fixedly connected to multiple second connecting seats.

[0023] In the aforementioned box sealing equipment, a second support is provided on the frame; the second support includes a gantry frame and a movable frame; the gantry frame is mounted on the frame; the gantry frame is equipped with a lifting assembly; the movable frame is mounted on the lifting assembly; the lifting assembly is used to drive the movable frame to move vertically; the box folding module, the adhesive application module, and the detection module are all mounted on the movable frame.

[0024] In the aforementioned carton sealing equipment, the carton folding module includes a first extension frame, a drive assembly, a striking rod, a pressure plate, a left cover rod, and a right cover rod. One end of the first extension frame is fixedly connected to the movable frame, and the other end of the first extension frame is rotatably connected to one end of the striking rod. One end of the drive assembly is rotatably connected to the first extension frame, and the other end of the drive assembly is rotatably connected to the striking rod and used to drive the striking rod to swing. The pressure plate is fixedly connected to the first extension frame. One end of the left cover rod and one end of the right cover rod are fixedly connected to the first extension frame, and the other ends of the left cover rod and the right cover rod extend outward at an angle. The left cover rod and the right cover rod are symmetrically arranged on both sides of the carton conveying direction.

[0025] The pressure plate is used to fold the front cover of the carton; the striking rod is used to fold the rear cover of the carton; the left cover rod is used to fold the left end of the carton seal; and the right cover rod is used to fold the right end of the carton cover.

[0026] In the aforementioned sealing device, the first sensor is located at the end of the left cover rod that extends outward at an angle; the second sensor is located at the end of the right cover rod that extends outward at an angle.

[0027] One of the above-described technical solutions of this utility model has at least one of the following advantages or beneficial effects:

[0028] This invention uses a detection module to check whether the cover plates on both sides of the carton are flush and transmits the position information to a PLC control module. The PLC control module adaptively adjusts the conveying speed of the first and second conveyor belts based on the position information. Since the first and second conveyor belts contact one side of the carton respectively, when there is a speed difference between the two, the carton can be deformed as a whole, thereby adjusting the cover plates on both sides of the carton to be flush. Then, the carton is sealed by a folding module and an adhesive applicator module, making the seal flush. This not only avoids some adhesive tape being suspended or wrinkled, ensuring the airtightness of the carton and improving the packaging quality, but also makes the sealed carton look beautiful and enhances the company's image. Attached Figure Description

[0029] Figure 1 This is a three-dimensional schematic diagram of the entire machine of this utility model;

[0030] Figure 2 This is a schematic diagram of the working process of this utility model;

[0031] Figure 3 For the present utility model Figure 1 A magnified view of a portion of the image;

[0032] Figure 4 For the present utility model Figure 1 Side view;

[0033] Figure 5 For the present utility model Figure 1 The front view;

[0034] Figure 6 This is a schematic diagram of the structure of the first conveying module and the second conveying module of this utility model;

[0035] Figure 7 This is a schematic diagram of the structure of the cardboard box of this utility model.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Frame; 2. PLC control module; 3. Folding box module; 31. First extension frame; 32. Drive assembly; 33. Strike bar; 34. Pressure plate; 35. Left cover rod; 36. Right cover rod; 4. Adhesive application module; 41. Second extension frame; 42. Box sealing machine core; 5. First conveyor module; 51. First conveyor belt; 511. First drive motor; 512. First drive roller; 513. First driven roller; 514. First belt; 515. First auxiliary wheel; 52. Second conveyor belt; 521. Second drive motor; 522. Second drive roller; 523. Second driven roller; 524. Second belt; 525. Second auxiliary wheel; 6. Second conveyor module; 61. Third conveyor belt; 611. Third drive motor; 612. Third drive roller; 613. Third driven roller 614. Third belt; 62. Fourth conveyor belt; 621. Fourth drive motor; 622. Fourth drive roller; 623. Fourth driven roller; 624. Fourth belt; 7. Detection module; 71. First sensor; 72. Second sensor; 73. Third sensor; 74. Fourth sensor; 8. First bracket; 81. Fixed rod; 801. First external thread; 802. Second external thread; 811. Handle; 82. First mounting plate; 83. Second mounting plate; 84. First connecting seat; 85. Second connecting seat; 9. Second bracket; 91. Gantry frame; 92. Movable frame; 93. Lifting assembly; 931. Lifting screw; 932. Lifting nut block; 933. Rotating handle; A. Carton; 1a. Front cover plate; 2a. Rear cover plate; 3a. Right cover plate; 4a. Left cover plate. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] In the embodiments described below, the carton is a hexahedron with a front cover, a rear cover, a left cover, and a right cover on its upper surface. These four cover plates close the upper surface of the carton. The frame is a roller conveyor line with multiple rotatably connected rollers to allow the carton to move forward.

[0040] Example 1

[0041] refer to Figures 1-7 A carton sealing device includes a frame 1, a PLC control module 2, a carton folding module 3, and an adhesive application module 4 mounted on the frame 1. It also includes a first conveying module 5, a detection module 7, and a second conveying module 6 mounted on the frame 1. The frame 1 has a horizontally extending and perpendicular first and second directions. The first conveying module 5 and the second conveying module 6 are arranged along the first direction. The carton folding module 3 is positioned directly above the first conveying module 5. The adhesive application module 4 is positioned directly above the second conveying module 6.

[0042] The first conveying module 5 includes a first conveyor belt 51 and a second conveyor belt 52 arranged at intervals along the second direction; a first carton channel is formed between the first conveyor belt 51 and the second conveyor belt 52;

[0043] The detection module 7 is used to detect whether the left cover plate 4a and the right cover plate 3a of the carton are aligned in the second direction; the detection module 7, the first conveyor belt 51 and the second conveyor belt 52 are all electrically connected to the PLC control module; the PLC control module 2 can adjust the conveying speed of the first conveyor belt 51 and the second conveyor belt 52 independently.

[0044] Specifically, the detection module 7 includes a first sensor 71 and a second sensor 72 symmetrically arranged on both sides of the first carton channel; both the first sensor 71 and the second sensor 72 are electrically connected to the PLC control module 2; the first carton channel has a first detection position and a second detection position arranged along the second direction; when the carton A is conveyed along the first carton channel, the right cover plate 3a of the carton passes through the first detection position, and the left cover plate 4a of the carton passes through the second detection position;

[0045] The first sensor 71 is used to detect whether the right cover plate 3a of the carton has reached the first detection position and to send a first signal, and the second sensor 72 is used to detect whether the left cover plate 4a of the carton has reached the second detection position and to send a second signal.

[0046] The PLC control module 2 is capable of receiving the first signal and the second signal;

[0047] Furthermore, when the PLC control module 2 receives both the first signal and the second signal simultaneously, the left cover plate 4a and the right cover plate 3a of the carton are aligned in the second direction.

[0048] When the PLC control module 2 receives the first signal first or the second signal first, the left cover plate 4a and the right cover plate 3a of the carton are not aligned in the second direction; the PLC control module 2 controls the conveying speed of the first conveyor belt 51 and / or the second conveyor belt 52 to form a differential speed. Specifically:

[0049] In practical applications, carton A is conveyed along the first carton channel, with its front cover 1a and rear cover 2a folded by the folding module 3. Then, the right cover 3a enters the first detection position, where the first sensor 71 detects the edge of the top of the right cover 3a and sends a first signal. The left cover 4a enters the second detection position, where the second sensor 72 detects the edge of the top of the left cover 4a and sends a second signal. The PLC control module 2 receives the first and second signals and controls the conveying speed of the first conveyor belt 51 and the second conveyor belt 52 according to the timing of the received signals. For example:

[0050] refer to Figure 2 When the PLC control module 2 receives the first signal and then the second signal, i.e., along the first direction (conveyor direction), the right cover plate 3a is located at the front end of the left cover plate 4a. At this time, the PLC control module 2 adjusts the conveying speed of the first conveyor belt 51 to be less than the conveying speed of the second conveyor belt 52, forming a differential speed. This causes the carton A to deform under the action of friction, thereby adjusting the left cover plate 4a and the right cover plate 3a to be aligned and folded synchronously. Immediately afterward, the carton A enters the working range of the adhesive module 4 to complete the sealing. Preferably, the magnitude of the differential speed is adjusted by the time difference between the PLC control module 2 receiving the first signal and the second signal.

[0051] Similarly, when the PLC control module 2 receives the second signal first and then the first signal, that is, along the first direction (conveying direction), the left cover plate 4a is located at the front end of the right cover plate 3a, the PLC control module 2 will adjust the conveying speed of the second conveyor belt 52 to be less than the conveying speed of the first conveyor belt 51.

[0052] As for the PLC control module 2 receiving the first signal and the second signal simultaneously, it maintains the same conveying speed for the first conveyor belt 51 and the second conveyor belt 52.

[0053] The sealing method of this embodiment has at least the following advantages: it avoids some tape being suspended or wrinkled, ensures the airtightness of carton A, improves the packaging quality, and makes the sealed carton look beautiful, thus enhancing the company's image.

[0054] In this embodiment, more preferably, the first carton channel also has a third detection position and a fourth detection position arranged along the second direction; wherein, the first detection position and the third detection position are arranged sequentially along the first direction, and the second detection position and the fourth detection position are arranged sequentially along the first direction; when the carton A is conveyed along the first carton channel, the right cover plate 3a of the carton A passes through the third detection position, and the left cover plate 4a of the carton passes through the fourth detection position;

[0055] The second and fourth detection positions are arranged sequentially along the first direction; the detection module 7 also includes a third sensor 73 and a fourth sensor 74 symmetrically arranged on both sides of the first carton channel; the third sensor 73 and the fourth sensor 74 are both electrically connected to the PLC control module 2; when the right cover plate 3a enters the third detection position, the third sensor 73 detects the edge of the top of the right cover plate 3a and sends out a third signal, and when the left cover plate 4a enters the fourth detection position, the fourth sensor 74 detects the edge of the top of the left cover plate 4a and sends out a fourth signal.

[0056] Similarly, as described above, the PLC control module 22 can further adjust carton A using the third and fourth signals. Since it cannot be guaranteed that the right cover 3a and left cover 4a will be perfectly aligned in the first adjustment, multiple adjustments can be made in practice to try and achieve the desired alignment. This design compensates for any errors made in the first adjustment. Of course, in practical applications, the above method can be used to increase the number of adjustments.

[0057] Specifically, the frame 1 is a roller conveyor line, which is provided with multiple rollers arranged at intervals.

[0058] In this embodiment, specifically, the frame 1 is provided with a first support 8, the first support 8 including a fixing rod 81, a first mounting plate 82 and a second mounting plate 83; preferably, the length direction of the fixing rod 81 extends along the second direction; there are two fixing rods 81, both of which are disposed on the frame 1 and arranged at intervals along the first direction; the first mounting plate 82 is connected to the two fixing rods 81 and is suspended above the frame 1; the second mounting plate 83 is connected to the two fixing rods 81 and is suspended above the frame 1; the first mounting plate 82 and the second mounting plate 83 are arranged at intervals along the second direction; the first conveyor belt 51 is disposed on the first mounting plate 82; the second conveyor belt 52 is disposed on the second mounting plate 83. In this design, the first mounting plate 82 and the second mounting plate 83 are suspended above the roller by the fixing rod 81. During conveying, the bottom surface of the carton A contacts the roller, and the two sides contact the first conveyor belt 51 and the second conveyor belt 52 respectively, so as to stably convey the carton along the first carton channel.

[0059] Based on the aforementioned first support 8, in order to adjust the distance between the first conveyor belt 51 and the second conveyor belt 52 to accommodate cartons A of different widths, as a preferred embodiment, the first support 8 further includes a first connecting seat 84 and a second connecting seat 85; the number of the first connecting seat 84 and the second connecting seat 85 are both two; the two ends of the fixing rod 81 are rotatably connected to one side of the frame 1, specifically, the frame 1 has through holes on both sides, and the fixing rod 81 is inserted into the frame 1 through the through holes on both sides. One end of the fixing rod 81 along its length direction is provided with a crank handle 811; the fixing rod 81 is provided with a first external thread 801 and a second external thread 802; the directions of the first external thread 801 and the second external thread 802 are opposite; the first connecting seat 84 is threadedly connected to the fixing rod 81 through the first external thread 801; the second connecting seat 85 is threadedly connected to the fixing rod 81 through the second external thread 802; the first mounting plate 82 is fixedly connected to the two first connecting seats 84; the second mounting plate 83 is fixedly connected to the two second connecting seats 85. In this preferred embodiment, the operator can rotate the crank 811 to drive the fixed rod 81 to rotate. By synchronously rotating the fixed rods 81 at both ends, since the directions of the first external thread 801 and the second external thread 802 are opposite, the first connecting seat 84 and the second connecting seat 85 will move closer or further away from each other during rotation, thereby achieving the above-mentioned purpose.

[0060] In this embodiment, specifically, the first conveyor belt 51 includes a first drive motor 511, a first drive roller 512, a first driven roller 513, and a first belt 514; the first drive roller 512 and the first driven roller 513 are both rotatably connected to the first mounting plate 82; the first drive roller 512 and the first driven roller 513 are connected by the first belt 514; the first drive motor 511 is mounted on the first mounting plate 82, and the output end of the first drive motor 511 is connected to the first drive roller 512 and used to drive the first drive roller 512 to rotate;

[0061] The second conveyor belt 52 includes a second drive motor 521, a second drive roller 522, a second driven roller 523, and a second belt 524; the second drive roller 522 and the second driven roller 523 are both rotatably connected to the second mounting plate 83; the second drive roller 522 and the second driven roller 523 are connected by transmission through the second belt 524; the second drive motor 521 is mounted on the second mounting plate 83, and the output end of the second drive motor 521 is connected to the second drive roller 522 and used to drive the second drive roller 522 to rotate;

[0062] Both the first drive motor 511 and the second drive motor 521 are electrically connected to the PLC control module 2. That is, the PLC control module 2 adjusts the conveying speed of the first conveyor belt 51 and the second conveyor belt 52 by adjusting the rotation speed of the first drive motor 511 and the second drive motor 521.

[0063] In other words, both the first conveyor belt 51 and the second conveyor belt 52 are belt conveyors. Preferably, the first conveyor belt 51 further includes multiple first auxiliary wheels 515 and the second conveyor belt 52 further includes multiple second auxiliary wheels 525. The first auxiliary wheels 515 and the second auxiliary wheels 525 are rotatably connected to the first mounting plate 82 and the second mounting plate 83, respectively. The function of the first auxiliary wheels 515 and the second auxiliary wheels 525 is to provide support for the belt and ensure that the working surface of the belt remains unchanged.

[0064] In this embodiment, specifically, the second conveying module 6 includes a third conveyor belt 61 and a fourth conveyor belt 62; the third conveyor belt 61 is disposed on the first mounting plate 82; the first conveyor belt 51 and the third conveyor belt 61 are arranged along a first direction; the fourth conveyor belt 62 is disposed on the second mounting plate 83; the second conveyor belt 52 and the fourth conveyor belt 62 are arranged along the first direction; a second carton channel is formed between the third conveyor belt and the fourth conveyor belt.

[0065] In this embodiment, more specifically, the third conveyor belt 61 includes a third drive motor 611, a third drive roller 612, a third driven roller 613, and a third belt 614; the third drive roller 612 and the third driven roller 613 are both rotatably connected to the first mounting plate 82; the third drive roller 612 and the third driven roller 613 are connected by the third belt 614; the third drive motor 611 is mounted on the first mounting plate 82, and the output end of the third drive motor 611 is connected to the third drive roller 612 and used to drive the third drive roller 612 to rotate;

[0066] The fourth conveyor belt 62 includes a fourth drive motor 621, a fourth drive roller 622, a fourth driven roller 623, and a fourth belt 624; the fourth drive roller 622 and the fourth driven roller 623 are both rotatably connected to the second mounting plate 83; the fourth drive roller 622 and the fourth driven roller 623 are connected by the fourth belt 624; the fourth drive motor 621 is mounted on the second mounting plate 83, and the output end of the fourth drive motor 621 is connected to the fourth drive roller 622 and used to drive the fourth drive roller 622 to rotate;

[0067] The third drive motor 611 and the fourth drive motor 621 are both electrically connected to the PLC control module 2.

[0068] In this embodiment, the structure of the second conveying module 6 is basically the same as that of the first conveying module 5, except that the PLC control module 2 does not need to independently adjust the third drive motor 611 and the fourth drive motor 621. Meanwhile, the third conveyor belt 61 and the fourth conveyor belt 62 of the second conveying module 6 are also mounted on the first mounting plate 82 and the second mounting plate 83. Accordingly, the spacing between the third conveyor belt 61 and the fourth conveyor belt 62 can be adjusted synchronously via the fixing rod 81.

[0069] In this embodiment, specifically, the frame 1 is provided with a second support 9; the second support 9 includes a gantry frame 91 and a movable frame 92; the gantry frame 91 is disposed on the frame 1; the gantry frame 91 is provided with a lifting assembly 93; the movable frame 92 is disposed on the lifting assembly 93; the lifting assembly 93 is used to drive the movable frame 92 to move vertically; the folding box module 3, the adhesive application module 4, and the detection module 7 are all disposed on the movable frame 92. Specifically, in this embodiment, there are two lifting assemblies 93, which are respectively disposed on both sides of the gantry frame 91, each including a lifting screw 931, a lifting nut block 932, and a rotating handle 933. The lifting screw 931 is vertically inserted into one side of the gantry frame 91, and the lifting nut block 932 is connected to the lifting screw 931; the rotating handle 933 is fixedly connected to the top end of the lifting screw 931; the two ends of the movable frame 92 are respectively disposed on the lifting nut blocks 932 on both sides. With the above design, the movable frame 92 can be moved up and down by rotating the handle 933, thereby adapting to cardboard boxes of different heights.

[0070] In this embodiment, more specifically, the folding module 3 includes a first extension frame 31, a drive assembly 32, a striking rod 33, a pressure plate 34, a left cover rod 35, and a right cover rod 36; one end of the first extension frame 31 is fixedly connected to the movable frame 92, and the other end of the first extension frame 31 is rotatably connected to one end of the striking rod 33; one end of the drive assembly 32 is rotatably connected to the first extension frame 31, and the other end of the drive assembly 32 is rotatably connected to the striking rod 33 and used to drive the striking rod 33 to swing, specifically, the drive assembly 32 is a cylinder; the pressure plate 34 is fixedly connected to the first extension frame 31; one end of the left cover rod 35 and one end of the right cover rod 36 are fixedly connected to the first extension frame 31, and the other ends of the left cover rod 35 and the right cover rod 36 extend outward at an angle; the left cover rod 35 and the right cover rod 36 are symmetrically arranged on both sides of the carton A conveying direction.

[0071] The pressure plate 34 is used to fold the front cover of the carton A; the striking rod 33 is used to fold the rear cover of the carton A; the left cover rod 35 is used to fold the left end of the carton A seal; and the right cover rod 36 is used to fold the right end of the carton A cover.

[0072] Specifically, the workflow of the folding module 3 in this embodiment is as follows: In the initial state, the striking rod 33 is raised, and the carton A is conveyed forward along the first carton channel. The front cover plate 1a of the carton A contacts the pressure plate 34. As the carton A continues to be conveyed forward, the pressure plate 34 presses down the front cover plate 1a. Then, the drive assembly 32 drives the striking rod 33 to swing downward. The striking rod 33 folds the rear cover plate 2a into the carton A and then raises it again. The carton A continues to be conveyed forward and enters between the left cover rod 35 and the right cover rod 36. Along the conveying direction of the carton A, the left cover rod 35 and the right cover rod 36 are arranged inward at an inward angle. In the vertical direction, the left cover rod 35 and the right cover rod 36 gradually tilt from top to bottom. Under this design, the left cover rod 35 and the right cover rod 36 can fold the left cover plate 4a and the right cover plate 3a into the carton A. As for how to adjust the left cover plate 4a and the right cover plate 3a to be flush, please refer to the previous text.

[0073] In this embodiment, to improve the structural compactness of the sealing device and reduce the difficulty of adjustment, specifically, the first sensor 71 is disposed at the outwardly inclined end of the left cover rod 35; the second sensor 72 is disposed at the outwardly inclined end of the right cover rod 36. With this design, the first sensor 71 and the second sensor 72 can follow the up-and-down movement of the movable frame 92, reducing the difficulty of adjusting the device.

[0074] In this embodiment, the adhesive application module 4 includes a second extension frame 41 and a carton sealing machine core 42, with one end of the second extension frame 41 fixedly connected to the movable frame 92. Regarding the carton sealing machine core 42, this embodiment does not limit its specific structure. In fact, the structure of the carton sealing machine core 42 is diverse in the art. Those skilled in the art should also be within the protection scope of this embodiment by selecting different types and models of carton sealing machine cores 42. For example, a fast automatic carton sealing machine disclosed in patent number CN206954644U, a carton sealing machine disclosed in CN1155264A, or a tape sealing machine core disclosed in CN1935601A, etc.

[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A carton sealing device, comprising a frame, a PLC control module mounted on the frame, a carton folding module, and an adhesive application module, characterized in that, It also includes a first conveying module, a detection module, and a second conveying module disposed on the frame; the frame has a horizontally extending and perpendicular first direction and a second direction, the first conveying module and the second conveying module are arranged along the first direction; the folding module is arranged directly above the first conveying module; the adhesive applicator is arranged directly above the second conveying module; The first conveying module includes a first conveyor belt and a second conveyor belt arranged at intervals along the second direction; a first carton channel is formed between the first conveyor belt and the second conveyor belt; The detection module is used to detect whether the left cover and right cover of the carton are flush in the second direction; the detection module, the first conveyor belt and the second conveyor belt are all electrically connected to the PLC control module; the PLC control module can adjust the conveying speed of the first conveyor belt and the second conveyor belt independently.

2. The sealing device according to claim 1, characterized in that, The detection module includes a first sensor and a second sensor symmetrically arranged on both sides of the first carton channel; both the first sensor and the second sensor are electrically connected to the PLC control module; the first carton channel has a first detection position and a second detection position arranged along the second direction; when the carton is conveyed along the first carton channel, the right cover of the carton passes through the first detection position, and the left cover of the carton passes through the second detection position; The first sensor is used to detect whether the right cover of the carton has reached the first detection position and to send a first signal, and the second sensor is used to detect whether the left cover of the carton has reached the second detection position and to send a second signal. The PLC control module is capable of receiving the first signal and the second signal; Furthermore, when the PLC control module receives both the first signal and the second signal simultaneously, the left and right cover plates of the carton are aligned in the second direction. When the PLC control module receives the first signal first or the second signal first, the left cover plate and the right cover plate of the carton are not aligned in the second direction; the PLC control module controls the conveying speed of the first conveyor belt and / or the conveying speed of the second conveyor belt to form a differential speed.

3. The sealing equipment according to claim 1, characterized in that, The frame is provided with a first bracket, which includes a fixing rod, a first mounting plate and a second mounting plate; the length direction of the fixing rod extends along the second direction; there are multiple fixing rods, all of which are provided on the frame and arranged at intervals along the first direction; the first mounting plate is connected to the multiple fixing rods and the first mounting plate is suspended above the frame; The second mounting plate is connected to the plurality of the fixing rods and is suspended above the frame; the first mounting plate and the second mounting plate are spaced apart along the second direction; the first conveyor belt is mounted on the first mounting plate; and the second conveyor belt is mounted on the second mounting plate.

4. The sealing device according to claim 3, characterized in that, The first conveyor belt includes a first drive motor, a first drive roller, a first driven roller, and a first belt; the first drive roller and the first driven roller are both rotatably connected to the first mounting plate; the first drive roller and the first driven roller are connected by the first belt drive; the first drive motor is mounted on the first mounting plate, and the output end of the first drive motor is connected to the first drive roller and used to drive the first drive roller to rotate; The second conveyor belt includes a second drive motor, a second drive roller, a second driven roller, and a second belt; the second drive roller and the second driven roller are both rotatably connected to the second mounting plate; the second drive roller and the second driven roller are connected by the second belt drive; the second drive motor is mounted on the second mounting plate, and the output end of the second drive motor is connected to the second drive roller and used to drive the second drive roller to rotate; Both the first drive motor and the second drive motor are electrically connected to the PLC control module.

5. The sealing device according to claim 3, characterized in that, The second conveying module includes a third conveyor belt and a fourth conveyor belt; the third conveyor belt is disposed on the first mounting plate; the first conveyor belt and the third conveyor belt are arranged along the first direction; the fourth conveyor belt is disposed on the second mounting plate; the second conveyor belt and the fourth conveyor belt are arranged along the first direction; a second carton channel is formed between the third conveyor belt and the fourth conveyor belt; the first carton channel and the second carton channel are connected along the first direction.

6. The sealing device according to claim 5, characterized in that, The third conveyor belt includes a third drive motor, a third drive roller, a third driven roller, and a third belt; the third drive roller and the third driven roller are both rotatably connected to the first mounting plate; the third drive roller and the third driven roller are connected by the third belt drive; the third drive motor is mounted on the first mounting plate, and the output end of the third drive motor is connected to the third drive roller and used to drive the third drive roller to rotate; The fourth conveyor belt includes a fourth drive motor, a fourth drive roller, a fourth driven roller, and a fourth belt; the fourth drive roller and the fourth driven roller are both rotatably connected to the second mounting plate; the fourth drive roller and the fourth driven roller are connected by the fourth belt drive; the fourth drive motor is mounted on the second mounting plate, and the output end of the fourth drive motor is connected to the fourth drive roller and used to drive the fourth drive roller to rotate; The third drive motor and the fourth drive motor are both electrically connected to the PLC control module.

7. The sealing device according to claim 3, characterized in that, The first bracket further includes a first connecting seat and a second connecting seat; there are multiple first connecting seats and multiple second connecting seats; both ends of the fixing rod are rotatably connected to one side of the frame, and one end of the fixing rod along its length is provided with a handle; the fixing rod is provided with a first external thread and a second external thread; the first external thread and the second external thread are in opposite directions; the first connecting seat is threadedly connected to the fixing rod through the first external thread; the second connecting seat is threadedly connected to the fixing rod through the second external thread; the first mounting plate is fixedly connected to multiple first connecting seats; the second mounting plate is fixedly connected to multiple second connecting seats.

8. The sealing device according to claim 2, characterized in that, The frame is provided with a second support; the second support includes a gantry frame and a movable frame; the gantry frame is mounted on the frame; the gantry frame is provided with a lifting assembly; the movable frame is mounted on the lifting assembly; the lifting assembly is used to drive the movable frame to move vertically; the folding box module, the adhesive application module and the detection module are all mounted on the movable frame.

9. The sealing device according to claim 8, characterized in that, The folding module includes a first extension frame, a drive assembly, a striking rod, a pressure plate, a left cover rod, and a right cover rod. One end of the first extension frame is fixedly connected to the movable frame, and the other end of the first extension frame is rotatably connected to one end of the striking rod. One end of the drive assembly is rotatably connected to the first extension frame, and the other end of the drive assembly is rotatably connected to the striking rod and used to drive the striking rod to swing. The pressure plate is fixedly connected to the first extension frame. One end of the left cover rod and one end of the right cover rod are fixedly connected to the first extension frame, and the other ends of the left cover rod and the right cover rod extend outward at an angle. The left cover rod and the right cover rod are symmetrically arranged on both sides of the carton conveying direction. The pressure plate is used to fold the front cover of the carton; the striking rod is used to fold the rear cover of the carton; the left cover rod is used to fold the left end of the carton seal; and the right cover rod is used to fold the right end of the carton cover.

10. The box sealing equipment according to claim 9, characterized in that, The first sensor is located at the end of the left cover rod that extends outward at an angle; the second sensor is located at the end of the right cover rod that extends outward at an angle.

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