Hot-pressing edge sealing equipment for packaging carton

Abstract

The utility model discloses packaging carton hot-pressing edge sealing equipment which comprises a frame and a hot-pressing plate, two sets of transmission rollers are rotationally connected in the frame and connected with each other through a transmission belt, a first electric telescopic rod is fixedly connected to the upper end of a first device frame, and the telescopic end of the first electric telescopic rod penetrates through the first device frame to be connected with the hot-pressing plate. Second electric telescopic rods are fixedly connected to the outer walls of the two sides of the first device frame, the telescopic ends of the second electric telescopic rods are fixedly connected with sliding plates, the two ends of each sliding plate are slidably connected with sliding rods, the ends of the sliding rods are jointly connected with a clamping plate, and elastic reset mechanisms are installed on the outer walls of the two sliding rods. Through the components such as the sliding rod, the spring and the clamping plate, when the hot pressing plate is separated from the paper box, the elastic counter force of the spring can effectively counteract external disturbance, the paper box is prevented from sliding upwards or deviating along with the hot pressing plate, the positioning stability of the paper box in the hot pressing process is ensured, the problem that the edge sealing is not firm or the edge is not flat due to sliding of the paper box is solved, and the production efficiency is improved. And the edge sealing quality and the production efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of hot-press sealing technology, and in particular to hot-press sealing equipment for packaging paper boxes. Background Technology

[0002] In the production process of packaging cartons, in order to facilitate the forming of the packaging cartons and to prevent the cartons from becoming loose, it is necessary to heat-seal the edges of the cartons.

[0003] In existing technologies, a hot press plate is mainly inserted into the carton using an electric telescopic rod to perform hot pressing and sealing of the bottom corners of the carton. During this process, a clamping and positioning mechanism is usually used to limit the outer wall of the carton to ensure the accuracy of the hot pressing and sealing. However, this method has certain drawbacks in actual use. For example, when hot pressing and sealing the inner corners of the carton, the clamping mechanism only limits the carton, while the outer wall of the hot press plate is in contact with the inner wall of the carton. When the hot press plate detaches from the outer wall of the carton, it will cause the carton to slide upward, which may interrupt the production process and require readjustment of the carton position. Therefore, a hot pressing and sealing device for packaging cartons is proposed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hot-press sealing device for packaging paper boxes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hot-press sealing device for packaging cartons includes a frame and a hot-press plate. Two sets of transmission rollers are rotatably connected inside the frame and are interconnected by a transmission belt. A device frame 1 and a device frame 2 are fixedly connected to the end face of the frame, with the device frame 2 located to the right of the device frame 1. An electric telescopic rod 1 is fixedly connected to the upper end of the device frame 1, and the telescopic end passes through the device frame 1 and connects to the hot-press plate. Electric telescopic rods 2 are fixedly connected to the outer walls on both sides of the device frame 1, and slide plates are fixedly connected to the telescopic ends of both. Slide rods are slidably connected to both ends of the slide plates, and clamping plates are connected to the ends of both slide rods. An elastic reset mechanism is installed on the outer walls of both sets of slide rods.

[0007] Preferably, the elastic reset mechanism includes limiting blocks fixedly connected to the ends of two sets of slide rods, the radius of the limiting blocks being larger than the radius of the slide rods, and a spring being sleeved on the outer wall of the slide rods, the two ends of the spring being fixedly connected to the limiting blocks and the slide plate respectively.

[0008] Preferably, a double-ended threaded rod is rotatably connected to the second device frame, and two sets of sliders are threadedly connected to the threaded section of the double-ended threaded rod.

[0009] Preferably, the two end faces of the device frame are provided with sliding grooves, and the two sets of sliders are slidably connected in the sliding grooves. The lower ends of the two sets of sliders are connected to positioning plates through connecting rods.

[0010] Preferably, a limiting rod is fixedly connected to the upper end of the second device frame, and both sets of sliders are slidably connected to the outer wall of the limiting rod.

[0011] Preferably, a second servo motor is fixedly connected to the side wall of the frame, and a first servo motor is fixedly connected to the outer wall of the second device frame. The output shafts of the first servo motor and the second servo motor are respectively fixedly connected to a double-threaded rod and a transmission roller.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model uses components such as a sliding rod, spring, and clamping plate. When the hot press plate is detached from the carton, the elastic reaction force of the spring can effectively counteract external disturbances, prevent the carton from sliding or shifting with the hot press plate, ensure the positioning stability of the carton during the hot pressing process, and avoid problems such as weak sealing or uneven edges caused by the sliding of the carton, thereby improving sealing quality and production efficiency.

[0014] 2. This utility model uses the coordinated work of a double-headed threaded rod, a slider, and a positioning plate to perform secondary positioning of the carton after hot-pressing and sealing, forcing it to be aligned with the central axis of the transmission belt, thus eliminating the slight deviation that may occur during the hot-pressing process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the hot-press sealing equipment for packaging paper boxes proposed in this utility model;

[0016] Figure 2 for Figure 1 A structural schematic diagram of one part of the central device frame.

[0017] Figure 3 for Figure 1 Schematic diagram of two parts of the central device frame.

[0018] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Frame; 2. Transmission belt; 3. Device frame one; 4. Electric telescopic rod one; 5. Hot press plate; 6. Electric telescopic rod two; 7. Clamping plate; 8. Slide plate; 9. Slide rod; 10. Limiting block; 11. Device frame two; 12. Positioning plate; 13. Double-ended threaded rod; 14. Limiting rod; 15. Servo motor one; 16. Slider; 17. Connecting rod; 18. Spring; 19. Servo motor two. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 The packaging paper box hot sealing equipment includes a frame 1 and a hot pressing plate 5. Two sets of transmission rollers are rotatably connected inside the frame 1. The two sets of transmission rollers are connected to each other through a transmission belt 2. A device frame 1 3 and a device frame 2 11 are fixedly connected to the end face of the frame 1. The device frame 2 11 is located to the right of the device frame 1 3. An electric telescopic rod 4 is fixedly connected to the upper end of the device frame 1 3. The telescopic end passes through the device frame 1 3 and is connected to the hot pressing plate 5. Electric telescopic rods 2 6 are fixedly connected to both outer walls of the device frame 1 3. Slide plates 8 are fixedly connected to both telescopic ends. Slide rods 9 are slidably connected to both ends of the slide rods 8. Clamping plates 7 are connected to both ends. An elastic reset mechanism is installed on the outer wall of both sets of slide rods 9. The elastic reset mechanism includes a limiting block 10 fixedly connected to the ends of the two sets of slide rods 9. The radius of the limiting block 10 is larger than the radius of the slide rod 9. A spring 18 is sleeved on the outer wall of the slide rod 9. The two ends of the spring 18 are fixedly connected to the limiting block 10 and the slide plate 8, respectively.

[0022] Furthermore, by utilizing the elastic properties of the spring 18, the paper box can be effectively clamped while ensuring stable positioning, preventing the heat-pressing plate 5 from affecting the original position of the paper box when it detaches, thus ensuring the continuity of the production process. It should be noted that the heat-pressing plate 5, in conjunction with the electric telescopic rod 4, can perform heat-sealing operations on the four bottom corners of the paper box. The structure of the heat-pressing plate 5 is mature existing technology, therefore it is not described in detail.

[0023] A double-headed threaded rod 13 is rotatably connected to the second device frame 11. Two sets of sliders 16 are threadedly connected to the threaded section of the double-headed threaded rod 13. A sliding groove is opened through the end face of the second device frame 11. Both sets of sliders 16 are slidably connected in the sliding groove. The lower ends of both sets of sliders 16 are connected to a positioning plate 12 through a connecting rod 17.

[0024] Furthermore, after the paper box is heat-sealed, the two sets of positioning plates 12 are driven to slide towards each other by the double-headed threaded rod 13, which can limit the position of the paper box again and ensure that it is on the central axis of the transmission belt 2, further ensuring the continuity of subsequent operations.

[0025] A limit rod 14 is fixedly connected to the upper end of the device frame 2 11. Two sets of sliders 16 are slidably connected to the outer wall of the limit rod 14. A servo motor 2 19 is fixedly connected to the side wall of the frame 1. A servo motor 15 is fixedly connected to the outer wall of the device frame 2 11. The output shafts of the servo motor 15 and the servo motor 2 19 are respectively fixedly connected to the double-headed threaded rod 13 and the transmission roller.

[0026] In this invention, the device is used as follows: servo motor 19 drives the transmission roller to rotate, causing the transmission belt 2 to move smoothly along the frame 1, conveying the cardboard box to be sealed to the hot pressing station. When the cardboard box reaches the hot pressing station, electric telescopic rod 6 is activated, pushing the sliding plates 8 on both sides to slide along the sliding rod 9, causing the clamping plate 7 to move towards the outer wall of the cardboard box. During the clamping process, the spring 18 on the sliding rod 9 is compressed and contracts, ensuring uniform clamping force and preventing damage to the surface of the cardboard box. The elastic reaction force of the spring 18 keeps the clamping plate 7 firmly against the outer wall of the cardboard box. Even when the hot pressing plate 5 is removed from the cardboard box, it can still elastically reset to offset external disturbances, preventing the cardboard box from sliding or shifting with the hot pressing plate, ensuring positioning stability.

[0027] After clamping, the electric telescopic rod 4 is activated, driving the hot press plate 5 to press down to the four corners of the bottom inside the cardboard box. The hot press plate 5 quickly heats up to the set temperature through its built-in heating module, hot-pressing and bonding the corners of the cardboard box to ensure a firm and smooth seal. After sealing, the hot press plate 5 is raised back to its original position.

[0028] Servo motor 15 starts, driving the double-headed threaded rod 13 to rotate. This causes two sets of sliders 16 to slide synchronously towards each other along the slide groove and the limiting rod 14, adjusting the position of the positioning plate 12 via the connecting rod 17. The two sets of positioning plates 12 clamp the cardboard box from both sides, forcing it to be positioned along the central axis of the transmission belt 2, eliminating any slight offset that may occur during the hot pressing process. After positioning is complete, the transmission belt 2 continues to run, transporting the cardboard box to the next process. At the same time, a new cardboard box enters the hot pressing station, realizing a cyclical operation.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot edge sealing apparatus for carton packaging, comprising a frame (1) and a hot plate (5), characterized in that, The frame (1) is rotatably connected with two groups of transmission rollers, the two groups of transmission rollers are connected with each other through a transmission belt (2), the frame (1) is fixedly connected with a device frame one (3) and a device frame two (11), and the device frame two (11) is located at the right side of the device frame one (3), the device frame one (3) is fixedly connected with an electric telescopic rod one (4), and the telescopic end penetrates through the device frame one (3) and is connected with a hot pressing plate (5), the two outer walls of the device frame one (3) are fixedly connected with electric telescopic rod twos (6), and the telescopic ends are fixedly connected with slides (8), the two ends of the slide (8) are slidably connected with slide rods (9), and the end portions are connected with a clamping plate (7), and the outer walls of the two groups of slide rods (9) are provided with elastic reset mechanisms.

2. The carton hot-flap-sealing apparatus of claim 1 wherein, The elastic reset mechanism comprises limiting blocks (10) fixedly connected at the ends of the two groups of slide rods (9), respectively, the radius size of the limiting block (10) is greater than the radius size of the slide rod (9), the outer wall of the slide rod (9) is sleeved with a spring (18), and the two ends of the spring (18) are fixedly connected with the limiting block (10) and the slide (8), respectively.

3. The carton hot-flap-sealing apparatus of claim 2 wherein, The device frame two (11) is rotatably connected with a double-headed threaded rod (13), and the threaded segment of the double-headed threaded rod (13) is threadedly connected with two groups of sliding blocks (16).

4. The carton hot-flap-sealing apparatus of claim 3 wherein, The end face of the device frame two (11) is provided with a sliding groove, and the two groups of sliding blocks (16) are slidably connected in the sliding groove.

5. The carton hot-flap-sealing apparatus of claim 4 wherein, The lower ends of the two groups of sliding blocks (16) are connected with a positioning plate (12) through a connecting rod (17).

6. The carton hot-flap-sealing apparatus of claim 5 wherein, The upper end of the device frame two (11) is fixedly connected with a limiting rod (14), and the two groups of sliding blocks (16) are slidably connected on the outer wall of the limiting rod (14). The side wall of the frame (1) is fixedly connected with a servo motor two (19), the outer wall of the device frame two (11) is fixedly connected with a servo motor one (15), and the output shafts of the servo motor one (15) and the servo motor two (19) are fixedly connected with the double-headed threaded rod (13) and the transmission roller, respectively.

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