Novel rapid carton bottom sealing device

By introducing detection and adjustment components into the carton sealing machine, and using pressure sensors to detect the squeezing force on the side walls of the carton, the problem of carton deformation caused by excessive adjustment of the conveying device is solved, and safe sealing of the carton is achieved.

CN224091063UActive Publication Date: 2026-04-07HANGZHOU UPSTREAM CARTON CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-15
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

Existing carton sealing machines are prone to causing carton deformation and damage when adjusting the distance of the conveyor device.

Method used

By combining detection and adjustment components, the pressure sensor detects the squeezing force on the side wall of the carton to ensure that the transmission component is adjusted to the appropriate position and avoids excessive squeezing.

Benefits of technology

This effectively avoids excessive pressure on the side walls of the carton by the transmission components, preventing the carton from deforming and being damaged, and ensuring the smooth progress of the sealing process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224091063U_ABST
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Abstract

The utility model discloses a novel carton bottom quick sealing device which comprises an outer frame, an inner frame and a carton sealing machine core, the inner frame is arranged on the inner side of the outer frame, two connecting rods are connected between the front inner wall and the rear inner wall of the inner frame and the front inner wall and the rear inner wall of the outer frame respectively, and the carton sealing machine core is arranged on the inner side of the inner frame. Two conveying assemblies are arranged on the upper side of the outer frame, each conveying assembly comprises a conveying box, the conveying boxes are arranged on the upper side of the outer frame, an operator can exactly master whether the two conveying assemblies are adjusted to the proper positions or not through the detection assemblies, a carton can be exactly clamped by the two conveying assemblies, and therefore the carton conveying efficiency is improved. Excessive position adjustment of the conveying assembly is avoided, so that the conveying assembly is prevented from extruding the side walls of the carton to deform and damage the carton.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a novel carton bottom quick sealing device. BACKGROUND

[0002] Cartons usually use sealing machines to quickly seal the bottom of the carton during production. When sealing, the carton with the folded bottom flap is placed between the two transmission devices of the sealing machine, and the transmission devices move together with the carton. During the movement, the core of the sealing machine will use adhesive tape to paste the bottom flap of the carton, thus completing the quick sealing of the bottom of the carton. The existing sealing machine needs to adjust the distance between the two transmission devices when sealing the bottom of the carton, so that the two transmission devices can clamp the carton. However, during the actual adjustment process, the two transmission devices may be adjusted too much, causing the transmission devices to squeeze the side walls of the carton and deform and damage the carton. Therefore, it is necessary to develop a novel carton bottom quick sealing device to solve the above problems. SUMMARY

[0003] The utility model aims at providing a novel carton bottom quick sealing device to solve the problems raised in the background art.

[0004] To solve the above problems, the utility model adopts the following technical scheme:

[0005] A novel carton bottom quick sealing device, comprising an outer frame, an inner frame and a sealing machine core, the inner frame is arranged on the inner side of the outer frame, two connecting rods are connected between the front and rear inner walls of the inner frame and the outer frame, the sealing machine core is arranged on the inner side of the inner frame, two transmission assemblies are arranged on the upper side of the outer frame, the transmission assembly comprises a transmission box, the transmission box is arranged on the upper side of the outer frame, two pulleys are rotatably arranged in the transmission box, a transmission belt is arranged between the two pulleys, a motor one is arranged on the top of the transmission box, the output shaft of the motor one penetrates the side wall of the transmission box and is connected with the rotating shaft of one pulley, a detection assembly is arranged on one side of the transmission box, the detection assembly comprises a detection box, the detection box is fixedly arranged in the transmission box, a pressure sensor and a sliding plate are arranged in the detection box, the pressure sensor is fixedly arranged in the detection box, the sliding plate is slidably arranged in the detection box, a spring is arranged between the pressure sensor and the sliding plate, a sliding rod is fixedly arranged on one side of the sliding plate, a detection plate is arranged on one side of the detection box, one end of the sliding rod penetrates the inner wall of the detection box and is connected with the detection plate, four columns are arranged on the bottom of the outer frame, an installation plate is arranged between the four columns, an adjusting assembly is arranged between the installation plate and the two transmission assemblies.

[0006] Preferably, the adjustment assembly includes two upright plates, one first and one second. Both upright plates are fixed to a mounting plate. A threaded rod is rotatably connected between the two upright plates. One upright plate is equipped with a motor second, the output shaft of which is connected to the threaded rod. The threaded rod is equipped with two adjusting blocks first. Each adjusting block first is connected to a corresponding transmission component by a support column first. A guide rail is fixedly connected between the two upright plates second. Two adjusting blocks second are slidably arranged on the guide rail. Each adjusting block second is connected to a corresponding transmission component by a support column second. Multiple linkage rods are fixedly connected between each adjusting block first and a corresponding adjusting block second on one side.

[0007] Preferably, the threaded rod has two sections of threads in opposite directions, and the two adjusting blocks are respectively disposed on the two threaded portions of the threaded rod.

[0008] Preferably, multiple rollers are provided on both sides of the inner frame, and the rollers are rotatably disposed between the inner walls of the outer frame. Multiple rollers are provided on both the front and rear sides of the inner frame, and the rollers are rotatably disposed between the inner walls of the outer frame and the inner frame.

[0009] Preferably, the four columns are respectively located at the four corners of the bottom of the outer frame, and a right-angle plate is provided between the column and the outer frame. The right-angle plate is connected to the outer frame and the column by bolts.

[0010] The beneficial effects of this utility model are: the detection component allows the operator to accurately determine whether the two transmission components have been adjusted to the appropriate position, so that the carton can be properly clamped by the two transmission components, avoiding over-adjustment of the position of the transmission components, thereby preventing the transmission components from squeezing the side wall of the carton and causing the carton to deform and be damaged. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below, but this is not a limitation on the protection scope of this utility model.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 2 This is a top view of the present invention;

[0014] Figure 3 This utility model Figure 2 Installation diagram of the second middle roller and the inner frame;

[0015] Figure 4 This utility model Figure 2 A schematic diagram of the structure of the transmission component;

[0016] Figure 5 This utility model Figure 4 A schematic diagram of the structure of the detection component;

[0017] Figure 6 This utility model Figure 1 A schematic diagram of the structure of the adjustment component;

[0018] Figure 7 This utility model Figure 6 Installation diagram of the central adjustment block 1 and the vertical plate 1;

[0019] Figure 8 This utility model Figure 6 Installation diagram of the second adjusting block and the second vertical plate.

[0020] In the diagram: 11. Outer frame; 12. Column; 13. Right-angle plate; 14. Transmission assembly; 15. Motor 1; 16. Mounting plate; 17. Adjustment assembly; 18. Roller 1; 19. Roller 2; 20. Inner frame; 21. Sealing machine core; 22. Connecting rod; 23. Transmission box; 24. Pulley; 25. Transmission belt; 26. Detection assembly; 27. Detection box; 28. Pressure sensor; 29. ​​Slide plate; 30. Slide rod; 31. Detection plate; 32. Adjustment block 1; 33. Column 1; 34. Motor 2; 35. Adjustment block 2; 36. Column 2; 37. Linkage rod; 38. Support column 1; 39. Support column 2; 40. Threaded rod; 41. Guide rail rod. Detailed Implementation

[0021] See Figures 1 to 8The present invention discloses a novel rapid bottom sealing device for cartons, comprising an outer frame 11, an inner frame 20, and a sealing machine core 21. The inner frame 20 is disposed inside the outer frame 11, and two connecting rods 22 are connected between the inner frame 20 and the front and rear inner walls of the outer frame 11, respectively. The inner frame 20 is fixedly disposed inside the outer frame 11 via the connecting rods 22. The sealing machine core 21 is disposed inside the inner frame 20. Two transmission components 14 are provided on the upper side of the outer frame 11. Component 14 includes a transmission box 23, which is disposed on the upper side of the outer frame 11. The transmission box 23 is a rectangular box with one side open. The open side of the transmission box 23 on the front side of the outer frame 11 faces rearward, and the open side of the transmission box 23 on the rear side of the outer frame 11 faces forward. Two pulleys 24 are rotatably disposed inside the transmission box 23. The pulleys 24 are rotatably disposed inside the transmission box 23 via a rotating shaft. A transmission belt 25 is disposed between the two pulleys 24. A motor 15 is disposed on the top of the transmission box 23. The output shaft of 15 passes through the side wall of the transmission box 23 and is connected to the shaft of a pulley 24. A detection component 26 is provided on one side of the transmission box 23. The detection component 26 includes a detection box 27, which is fixedly installed inside the transmission box 23. A pressure sensor 28 and a slide plate 29 are provided inside the detection box 27. The pressure sensor 28 is fixed inside the detection box 27, and the slide plate 29 is slidably installed inside the detection box 27. A spring is provided between the pressure sensor 28 and the slide plate 29. A slide rod 30 is fixedly installed on one side of the slide plate 29. A detection plate 31 is provided on one side of the detection box 27. One end of the slide rod 30 passes through the inner wall of the detection box 27 and is connected to the detection plate 31. Four columns 12 are provided at the bottom of the outer frame 11. An installation plate 16 is provided between the four columns 12. The installation plate 16 is connected to the four columns 12 by bolts, so that the installation plate 16 is stably installed between the four columns 12. An adjustment component 17 is provided between the installation plate 16 and the two transmission components 14.

[0022] When the bottom of the carton passes over the sealing machine core 21, the sealing machine core 21 can use tape to stick the folded flap at the bottom of the carton together, thereby sealing the bottom of the carton. The sealing machine core 21 is a mature existing technology that can be directly purchased from the market, and its specific structure is a common technical means for those skilled in the art.

[0023] In normal conditions, the spring between pressure sensor 28 and slide plate 29 is relaxed, and the vertical distance between the surface of detection plate 31 and the surface of conveyor belt 25 located outside the transfer box 23 is a preset value. When detection plate 31 is squeezed by the side of the carton, it will move towards detection box 27. At this time, slide bar 30 and slide plate 29 will move accordingly, and the spring between pressure sensor 28 and slide plate 29 will contract. Pressure sensor 28 will receive the pressure generated by the spring on pressure sensor 28. When detection plate 31 moves to the same plane as the surface of conveyor belt 25 outside the transfer box 23, the side wall of the carton that is in close contact with detection plate 31 is exactly in contact with the surface of conveyor belt 25. The carton is clamped between the two transmission components 14, which is the position that the transmission components 14 should be adjusted to. At this time, the distance that the detection plate 31 moves is exactly the preset value, and the compression distance of the spring between the pressure sensor 28 and the slide plate 29 is also the preset value. Therefore, the pressure received by the pressure sensor 28 from the spring is also a fixed value. Both the transmission box 23 and the detection box 27 are provided with through holes for the external wires of the pressure sensor 28 so that the pressure sensor 28 can be electrically connected to the external control computer. When the spring force value received by the pressure sensor 28 displayed on the control computer is the preset value, it means that the transmission component 14 has been adjusted to the appropriate position.

[0024] Furthermore, the adjustment assembly 17 includes two upright plates 33 and 36. Both upright plates 33 and 36 are fixed to the mounting plate 16. A threaded rod 40 is rotatably connected between the two upright plates 33. A motor 34 is mounted on one upright plate 33, and the output shaft of the motor 34 is connected to the threaded rod 40. Two adjusting blocks 32 are mounted on the threaded rod 40. Each adjusting block 32 is connected to a corresponding transmission assembly 14 by a support column 38. Both ends of the first 38 are fixedly connected to the first adjustment block 32 and the transmission box 23 directly above it, respectively. A guide rail rod 41 is fixedly connected between the two upright plates 36. Two adjustment blocks 35 are slidably arranged on the guide rail rod 41. Each adjustment block 35 is connected to a corresponding transmission component 14 by a support column 39. Both ends of the support column 39 are fixedly connected to the adjustment block 35 and the transmission box 23 directly above it, respectively. Multiple linkage rods 37 are fixedly connected between the first adjustment block 32 and the corresponding adjustment block 35 on one side.

[0025] Motor 2 34 is a servo motor, which can be controlled to rotate forward or backward, thereby controlling the threaded rod 40 to rotate forward or backward.

[0026] Furthermore, the threaded rod 40 is provided with two sections of threads in opposite directions, and the two adjusting blocks 32 are respectively disposed on the two threaded portions of the threaded rod 40. When the threaded rod 40 rotates, the two adjusting blocks 32 will move closer or further away from each other according to the forward or reverse rotation of the threaded rod 40, and the two transmission components 14 will also move accordingly, thereby adjusting the distance between the two transmission components 14.

[0027] Furthermore, multiple rollers 18 are provided on both sides of the inner frame 20. The rollers 18 are rotatably disposed between the inner walls of the outer frame 11. Multiple rollers 29 are provided on both the front and rear sides of the inner frame 20. The rollers 29 are rotatably disposed between the inner walls of the outer frame 11 and the inner frame 20. When sealing the bottom of the carton, the carton is placed on the plane formed by the rollers 18 and 29. When the carton moves under the action of the conveying assembly 14, the rollers 18 and 29 that are in contact with the bottom of the carton will also rotate accordingly.

[0028] Furthermore, the four columns 12 are respectively set at the four corners of the bottom of the outer frame 11, and a right angle plate 13 is provided between the column 12 and the outer frame 11. The right angle plate 13 is connected to the outer frame 11 and the column 12 by bolts.

[0029] The working principle of this utility model is as follows: When sealing the bottom of a carton, the bottom flap of the carton is folded and placed on the plane formed by roller 18 and roller 29, with the carton positioned between the two transmission components 14. The motor 2 34 is started and rotated forward, causing the threaded rod 40 to rotate forward as well. This brings the two adjusting blocks 32 closer together, thus bringing the two transmission components 14 closer together. During this process, the two detection plates 31 will contact the two side walls of the carton respectively, while the surface of the conveyor belt 25 is still a certain distance from the side of the carton. As the two transmission components 14 continue to approach, the detection plates 31, pressed by the side of the carton, will move towards the detection box 27. At this time, the sliding rod 30 and the sliding plate 29 will move accordingly, and the spring between the pressure sensor 28 and the sliding plate 29 will contract. The pressure sensor 28 will receive the spring's pressure on its surface. The generated pressure can be read in real time on the control computer electrically connected to the pressure sensor 28. When the read pressure value is the preset value, the detection plate 31 moves to the same plane as the surface of the conveyor belt 25 on the outside of the transmission box 23. At this time, the side wall of the carton that is close to the detection plate 31 is exactly in contact with the surface of the conveyor belt 25, so that the carton is just clamped between the two transmission components 14. That is, the transmission components 14 are adjusted to the appropriate position. At this time, the motor 24 is turned off to stop the movement of the transmission components 14. The detection component 26 allows the operator to accurately grasp whether the two transmission components 14 have been adjusted to the appropriate position, so that the carton can be just clamped by the two transmission components 14, avoiding over-adjustment of the position of the transmission components 14, thereby preventing the transmission components 14 from squeezing the side wall of the carton and causing the carton to deform and be damaged.

[0030] After the position adjustment of the transmission component 14 is completed, the motor 15 is started to make the pulley 24 rotate, thereby causing the transmission belt 25 to move. The two side walls clamped between the two transmission components 14 are respectively attached to the two transmission belts 25, so that the carton moves with the transmission belts 25. When the bottom of the carton passes over the sealing machine core 21, the sealing machine core 21 uses tape to stick the folded flap at the bottom of the carton, thereby achieving bottom sealing of a carton. For subsequent bottom sealing of cartons, since the distance between the two transmission components 14 has been adjusted, it is only necessary to place the carton between the two transmission components 14, taking care to avoid the detection component 26 located at the end of the transmission box 23. Then the transmission components 14 can transport the carton and allow the sealing machine core 21 to seal the bottom of the carton.

[0031] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.

Claims

1. A novel rapid carton bottom sealing device, comprising an outer frame, an inner frame, and a sealing machine core, characterized in that: The inner frame is located inside the outer frame. Two connecting rods connect the inner and outer frames to their front and rear inner walls respectively. The sealing machine core is located inside the inner frame. Two transmission components are located on the upper side of the outer frame. Each transmission component includes a transmission box, which is located on the upper side of the outer frame. Two pulleys are rotatably mounted inside the transmission box, and a transmission belt is located between the two pulleys. A motor is located at the top of the transmission box, and the output shaft of the motor passes through the side wall of the transmission box and is connected to the shaft of one of the pulleys. A detection component is located on one side of the transmission box. The detection component includes a detection box, which is fixedly mounted inside the transmission box. A pressure sensor and a sliding plate are located inside the detection box. The pressure sensor is fixed inside the detection box, and the sliding plate is slidably mounted inside the detection box. A spring is located between the pressure sensor and the sliding plate. A sliding rod is fixedly mounted on one side of the sliding plate. A detection plate is located on one side of the detection box, and one end of the sliding rod passes through the inner wall of the detection box and is connected to the detection plate. Four columns are located at the bottom of the outer frame, and a mounting plate is located between the four columns. An adjustment component is located between the mounting plate and the two transmission components.

2. The novel carton bottom quick sealing device according to claim 1, characterized in that: The adjustment assembly includes two upright plates, one first and one second. Both upright plates are fixed to a mounting plate. A threaded rod is rotatably connected between the two upright plates. One upright plate is equipped with a motor second, the output shaft of which is connected to the threaded rod. The threaded rod is equipped with two adjusting blocks first. Each adjusting block first is connected to a corresponding transmission component by a support column first. A guide rail is fixedly connected between the two upright plates second. Two adjusting blocks second are slidably arranged on the guide rail. Each adjusting block second is connected to a corresponding transmission component by a support column second. Multiple linkage rods are fixedly connected between each adjusting block first and a corresponding adjusting block second on one side.

3. A novel rapid sealing device for the bottom of a carton according to claim 2, characterized in that: The threaded rod has two sections of threads in opposite directions, and the two adjusting blocks are respectively set on the two threaded sections of the threaded rod.

4. The novel carton bottom quick sealing device according to claim 1, characterized in that: Multiple rollers are provided on both sides of the inner frame. The rollers are rotatably disposed between the inner walls of the outer frame. Multiple rollers are provided on both the front and rear sides of the inner frame. The rollers are rotatably disposed between the inner walls of the outer frame and the inner frame.

5. A novel rapid sealing device for the bottom of a carton according to claim 1, characterized in that: The four columns are respectively set at the four corners of the bottom of the outer frame. Right angle plates are provided between the columns and the outer frame, and the right angle plates are connected to the outer frame and the columns by bolts.