Efficient film packaging bag sealing device
By using a combination structure of hydraulic cylinder-driven electrically heated sealing plate and scraper plate, the problem of complex structure and incomplete cleaning of traditional packaging bag sealing devices is solved, achieving efficient sealing and cleaning, reducing costs and noise, and improving ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海旭杜包装材料有限公司
- Filing Date
- 2025-05-12
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional packaging bag sealing devices are complex in structure, noisy, ineffective at cleaning plastic residue, and costly, making it difficult to achieve efficient sealing and cleaning.
The sealing plate is driven by a hydraulic cylinder and heated by an electric heating plate. Combined with a scraper and spring structure, the plastic residue is cleaned by the scraper tilting, squeezing and rotating. The residue is collected by a collection drawer, which simplifies the structure and reduces costs.
It achieves efficient sealing and cleaning of plastic residue, reduces usage costs, improves ease of operation and practicality, reduces mechanical components, and significantly improves cleaning results.
Smart Images

Figure CN224195376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag sealing technology, and in particular to a high-efficiency film packaging bag sealing device. Background Technology
[0002] In modern life, various types of film packaging bags are needed. These bags have high requirements for both sealing and abrasion resistance. When goods are packaged and transported in film packaging bags, heat sealing devices are often used to seal the bags.
[0003] Traditional packaging bag sealing devices have certain shortcomings in use. For example, a high-efficiency packaging bag sealing device with authorization announcement number CN218967374U works by connecting a drive motor, a double-headed screw, nuts, a vertical plate, and a scraper. When the external power supply to the drive motor is turned on, the output end of the drive motor drives the double-headed screw to rotate. The double-headed screw simultaneously moves the two nuts towards the center. The nuts drive the scraper to move through the vertical plate. The scraper cleans off the plastic residue adhering to the bottom of the electrically heated sealing plate, achieving rapid cleaning of the residue and shortening the cleaning time, thereby improving the sealing efficiency of the packaging bag. However, the inventors found that the device has a complex structure, uses a fan and a number of hydraulic cylinders, and has significant room for reducing electricity costs. Furthermore, the fan is prone to noise, and when the fan blows away residue, the residue may be blocked by the frame and difficult to fall into the collection box through the opening, making it impractical. In addition, since some plastic residue sticks to the heating plate after hot melting, and there is no squeezing force between the scraper and the bottom of the electrically heated sealing plate, it cannot be guaranteed that the scraper can effectively scrape off the plastic residue. Therefore, we designed a high-efficiency film packaging bag sealing device. Utility Model Content
[0004] The purpose of this invention is to provide a high-efficiency film packaging bag sealing device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A high-efficiency film packaging bag sealing device includes a box body with a movable door on the front side. A placement seat is located at the bottom of the box body, and a cavity is opened at the left front end of the placement seat. A material collection drawer adapted to the cavity slides within the cavity. A material discharge port is opened at the top of the placement seat and communicates with the cavity. A hydraulic cylinder is fixedly mounted on the inner top wall of the box body. An electrically heated sealing plate is connected to the output end of the hydraulic cylinder. A guide rod and a threaded rod are arranged parallel to each other in front of the hydraulic cylinder. A common moving block is fitted around the guide rod and the threaded rod. A connecting vertical plate is located at the bottom of the moving block, and a mounting base is located at the bottom of the connecting vertical plate. A rotating circular plate is rotatably mounted on the top of the mounting base, and a base is mounted on the top of the rotating circular plate. A scraper is rotatably connected to one side of the top of the base via a hinge. Multiple second springs are connected to the bottom of the scraper, and the other end of each second spring is connected to the top of the base. A limiting component is located on the rear inner side of the box body.
[0007] As a preferred embodiment of this utility model: the limiting component includes a horizontal plate fixedly disposed between the inner walls of the left and right sides of the box body, a plurality of sliding rods are inserted through the sliding groove on the horizontal plate, the bottom ends of the plurality of sliding rods are connected to the same pressure plate, the top of the sliding rods is provided with a limiting block, the top of the two limiting blocks near the center of the top of the horizontal plate are connected to the same handle, and a first spring is sleeved on the outside of the sliding rod.
[0008] As a further preferred embodiment of this utility model: a second motor is provided at the bottom of the mounting base plate, and the output shaft of the second motor is connected to the rotating circular plate.
[0009] As a further preferred embodiment of this utility model: the guide rod is fixedly disposed between the inner walls of the left and right sides of the box, and the threaded rod is rotatably disposed between the inner walls of the left and right sides of the box.
[0010] As a further preferred embodiment of this utility model: a first motor is provided on the outer surface of the housing, and the output shaft of the first motor is connected to one end of the threaded rod.
[0011] As a further preferred embodiment of this utility model: one end of the first spring is connected to the bottom of the horizontal plate, and the other end is connected to the top of the pressure plate.
[0012] As a further preferred embodiment of this utility model: the scraper is inclined, with the lower end of the scraper located below the bottom of the electric heating sealing plate and the higher end of the scraper located above the bottom of the electric heating sealing plate.
[0013] The beneficial effects of this utility model are as follows: When in use, the device fixes the opening of the packaging bag using a limiting component. Then, the hydraulic cylinder is activated, causing the electrically heated sealing plate to move downwards for sealing. After sealing, the electrically heated sealing plate resets. The first motor is then activated, driving the threaded rod to rotate, which in turn moves the moving block to the right, which in turn moves the connecting vertical plate and the mounting base plate to the right, and consequently moves the scraper plate to the right. This causes the inclined upper surface of the scraper plate to abut against the bottom of the electrically heated sealing plate. Combined with the action of the second spring, the scraper plate rotates under the pressure of the electrically heated sealing plate, compressing the second spring and generating a certain elastic force, thereby increasing the scraper plate's resistance. The high-end top exerts a moving squeezing force on the bottom of the electrically heated sealing plate. As the scraper moves to the right, it effectively scrapes off plastic residue, resulting in good cleaning. When the scraper reaches the rightmost end of the electrically heated sealing plate and separates from it, the elasticity of multiple second springs is released, causing the scraper to reset. This bounces the scraper, dislodging any remaining plastic residue. Simultaneously, the second motor is activated, driving the rotating disc and base to rotate 180 degrees, which in turn rotates the scraper 180 degrees, facilitating the next cleaning of the electrically heated sealing plate. This device is highly practical and easy to operate. Plastic residue generated in this device can be manually swept to the discharge port and collected in a collection drawer as it falls. Compared to traditional devices, this device has a simpler structure but higher practicality, and with fewer mechanical components, it significantly reduces operating costs. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0015] Figure 1 This is a perspective view of the internal structure of the box in this utility model;
[0016] Figure 2 This is a front view of the internal structure of the box in this utility model;
[0017] Figure 3 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 4 for Figure 2 Enlarged view of point B in the middle;
[0019] Figure 5 This is a front view of the overall structure of this utility model.
[0020] The components are as follows: 1. Box body; 2. Placement seat; 3. Pressure plate; 4. Horizontal plate; 5. Material collection drawer; 6. Material discharge port; 7. Guide rod; 8. Hydraulic cylinder; 9. Handle; 10. Threaded rod; 11. First motor; 12. Electric heating sealing plate; 13. Moving block; 14. Connecting vertical plate; 15. Mounting base plate; 16. Second motor; 17. Rotating circular plate; 18. Base; 19. Scraper plate; 20. Limiting block; 21. First spring; 22. Second spring; 23. Box door; 24. Slide rod. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0022] Please see Figure 1-5 In this embodiment of the present invention, a high-efficiency film packaging bag sealing device includes a box body 1. A door 23 is movably provided on the front side of the box body 1. A placement seat 2 is provided at the bottom inner side of the box body 1. A cavity is opened at the left front end of the placement seat 2. A material collection drawer 5 is slidably disposed within the cavity. A material discharge port 6 is opened at the top of the placement seat 2. The material discharge port 6 is connected to the cavity, thus communicating with the interior of the material collection drawer 5. A hydraulic cylinder 8 is fixedly installed on the inner top wall of the box body 1. An electrically heated sealing plate 12 is connected to the output end of the hydraulic cylinder 8. A guide rod 7 and a threaded rod 10 are arranged parallel to each other in front of the hydraulic cylinder 8. A moving block 13 is sleeved on the outside of the guide rod 7 and the threaded rod 10. A connecting vertical plate 14 is provided at the bottom of the moving block 13. A mounting base plate 15 is provided at the bottom of the connecting vertical plate 14. A rotating circular plate 17 is rotatably mounted on the top of plate 15. A base 18 is mounted on the top of the rotating circular plate 17. A scraper 19 is rotatably connected to one side of the top of the base 18 via a hinge. Multiple second springs 22 are connected to the bottom of the scraper 19. The other end of the second springs 22 is connected to the top of the base 18. The scraper 19 is tilted, with the lower end of the scraper 19 located below the bottom of the electrically heated sealing plate 12 and the higher end of the scraper 19 located above the bottom of the electrically heated sealing plate 12. The upper surface of the scraper 19 can abut against the bottom of the electrically heated sealing plate 12. Under the squeezing action of the second springs 22, a certain squeezing force is generated between the upper surface of the scraper 19 and the bottom of the electrically heated sealing plate 12, ensuring the cleaning effect of the scraper 19 on plastic residue. A limiting component is provided on the rear side of the interior of the box 1.
[0023] The limiting component includes a horizontal plate 4 fixedly installed between the inner walls of the left and right sides of the box 1. Multiple sliding rods 24 are inserted through the sliding groove on the horizontal plate 4. The bottom ends of the multiple sliding rods 24 are connected to the same pressure plate 3. The top of the sliding rods 24 is provided with a limiting block 20. The top of the two limiting blocks 20 near the center of the top of the horizontal plate 4 is connected to the same handle 9. A first spring 21 is sleeved on the outside of the sliding rods 24. One end of the first spring 21 is connected to the bottom of the horizontal plate 4 and the other end is connected to the top of the pressure plate 3. The handle 9 makes it convenient for the operator to lift the pressure plate 3 upwards, thereby making it convenient to put the opening of the film packaging bag into the bottom of the pressure plate 3, and then release the handle. The pressure plate 3 presses down on the opening of the packaging bag, which facilitates the subsequent sealing operation. There is no need for manual handling of the packaging bag to seal it, making the device safer to use and simple and practical to operate.
[0024] A second motor 16 is provided at the bottom of the mounting base plate 15, and the output shaft of the second motor 16 is connected to the rotating circular plate 17.
[0025] The guide rod 7 is fixedly installed between the inner walls of the left and right sides of the box 1, and the threaded rod 10 is rotatably installed between the inner walls of the left and right sides of the box 1.
[0026] The outer surface of the housing 1 is provided with a first motor 11, and the output shaft of the first motor 11 is connected to one end of the threaded rod 10.
[0027] Specifically, in use, this device fixes the opening of the packaging bag using a limiting component. Then, the hydraulic cylinder 8 is activated, causing the electrically heated sealing plate 12 to move downwards for sealing. After sealing, the electrically heated sealing plate 12 returns to its original position. The first motor 11 is then activated, driving the threaded rod 10 to rotate, which in turn moves the moving block 13 to the right. This, in turn, moves the connecting vertical plate 14 and the mounting base plate 15 to the right, and consequently, moves the scraper plate 19 to the right. This causes the inclined upper surface of the scraper plate 19 to abut against the bottom of the electrically heated sealing plate 12. Combined with the action of the second spring 22, the scraper plate 19 rotates under the pressure of the electrically heated sealing plate 12, compressing the second spring 22 and generating a certain elastic force. This causes the higher end of the scraper plate 19 to... The part generates a moving squeezing force on the bottom of the electrically heated sealing plate 12. As the scraper 19 moves to the right, it fully ensures that the plastic residue is scraped off, resulting in a good cleaning effect. When the scraper 19 moves to the rightmost end of the electrically heated sealing plate 12 and separates from it, the elastic force of the multiple second springs 22 is released, thereby driving the scraper 19 to reset. That is, the scraper 19 is bounced up and vibrates, which facilitates the shaking off the plastic residue remaining on the surface of the scraper 19. In addition, at this time, the second motor 16 is started. The second motor 16 can drive the rotating disc 17 and the base 18 to rotate 180 degrees, which can drive the scraper 19 to rotate 180 degrees. Even if the scraper 19 turns around, it is convenient for the next cleaning operation of the electrically heated sealing plate 12. It is highly practical and easy to operate. The plastic residue generated in this device can be manually swept to the discharge port 6 as it falls, and collected through the collection drawer 5. Compared with traditional devices, this device has a simpler structure but is more practical, and has fewer mechanical components, which greatly reduces the cost of use.
[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A high-efficiency film packaging bag sealing device, comprising a box body (1), wherein a door (23) is movably provided on the front side of the box body (1); characterized in that: The bottom of the box (1) is provided with a placement seat (2). A cavity is opened at the front left end of the placement seat (2). A material collection drawer (5) adapted to the cavity is slidably arranged in the cavity. A material discharge port (6) is opened at the top of the placement seat (2). The material discharge port (6) is connected to the cavity. A hydraulic cylinder (8) is fixedly installed on the inner top wall of the box (1). An electric heating sealing plate (12) is connected to the output end of the hydraulic cylinder (8). A guide rod (7) and a threaded rod (10) are arranged parallel to each other in front of the hydraulic cylinder (8). The guide rod (7) and the threaded rod (10) are fitted with the same... The movable block (13) has a connecting vertical plate (14) at its bottom and a mounting base plate (15) at its bottom. The mounting base plate (15) has a rotating circular plate (17) at its top and a base plate (18) at its top. The top side of the base plate (18) is rotatably connected to a scraper plate (19) via a hinge. The bottom of the scraper plate (19) is connected to a plurality of second springs (22). The other end of the second springs (22) is connected to the top of the base plate (18). The rear side of the inner side of the housing (1) is provided with a limiting component.
2. The high-efficiency film packaging bag sealing device according to claim 1, characterized in that: The limiting assembly includes a horizontal plate (4) fixedly installed between the inner walls of the left and right sides of the box (1). Multiple sliding rods (24) are inserted through the sliding groove on the horizontal plate (4). The bottom ends of the multiple sliding rods (24) are connected to the same pressure plate (3). The top of the sliding rod (24) is provided with a limiting block (20). The tops of the two limiting blocks (20) near the center of the top of the horizontal plate (4) are connected to the same handle (9). A first spring (21) is sleeved on the outside of the sliding rod (24).
3. The high-efficiency film packaging bag sealing device according to claim 2, characterized in that: The bottom of the mounting base plate (15) is provided with a second motor (16), and the output shaft of the second motor (16) is connected to the rotating circular plate (17).
4. The high-efficiency film packaging bag sealing device according to claim 3, characterized in that: The guide rod (7) is fixedly installed between the inner walls of the left and right sides of the box (1), and the threaded rod (10) is rotatably installed between the inner walls of the left and right sides of the box (1).
5. The high-efficiency film packaging bag sealing device according to claim 4, characterized in that: The outer surface of the housing (1) is provided with a first motor (11), and the output shaft of the first motor (11) is connected to one end of the threaded rod (10).
6. The high-efficiency film packaging bag sealing device according to claim 2, characterized in that: One end of the first spring (21) is connected to the bottom of the horizontal plate (4), and the other end is connected to the top of the pressure plate (3).
7. The high-efficiency film packaging bag sealing device according to claim 1, characterized in that: The scraper (19) is inclined, with the lower end of the scraper (19) located below the bottom of the electric heating sealing plate (12) and the higher end of the scraper (19) located above the bottom of the electric heating sealing plate (12).