Automatic bag opening sealing structure of bagging machine

By setting movable and moving components on the bagging machine, the problem of incomplete bag sealing is solved, achieving a smooth and clean bag opening, improving sealing quality, extending the service life of the sealing strip, and reducing maintenance costs.

CN224117671UActive Publication Date: 2026-04-14XIANGYANG DESHUAI ELECTRIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-21
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The existing automatic sealing structure of bag-making machines cannot guarantee the flatness and tightness of the bag opening, resulting in gaps at the seal, which affects the quality of the packaged items and may even cause the internal items to fall out.

Method used

The design incorporates movable and sliding components. The movable component, through the cooperation of threaded rods and sliders, ensures a flat bag opening; the sliding component, through the cooperation of cleaning wheels and gears, cleans the surface of the sealing strip, preventing dust and debris residue.

Benefits of technology

It improves the tightness and tightness of the bag opening seal, extends the service life of the sealing strip, reduces maintenance costs and replacement frequency, and ensures the quality of packaged goods.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of bagging machine sealing structures, in particular to a bagging machine bag opening automatic sealing structure which comprises a sealing strip arranged at the top end of a machine body, a fixing strip is fixedly installed at the top of the sealing strip, and through the arrangement of a movable assembly, when a long plate slides downwards, a pressing plate can abut against the top end of a bagging bag. A pressing plate and a movable shaft are driven to slide upwards through reverse abutting force, when the movable shaft slides upwards, an inserting rod is driven to slide on the surface of a rotating shaft, so that the rotating shaft is driven to rotate, and when the rotating shaft rotates, a bottom threaded rod is driven to rotate; when the threaded rod rotates, a sliding plate on the surface can be driven to slide downwards and abut against a movable plate to drive a sliding block to move away from the center point of a connecting strip, so that the sliding block smooths the surface of the bag, and the situation that the sealing effect is affected due to the fact that an opening of the bag is wrinkled and unsmooth when the bag is sealed is prevented; the sealing tightness of the opening of the bag is improved, and the sealing quality is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of sealing structure of bagging machine, specifically an automatic sealing structure for bag opening of bagging machine. Background Technology

[0002] In modern logistics, warehousing, and many other industries that require packaging, bagging and sealing are extremely common and crucial steps. With the continuous expansion of production scale and the increasing demands for packaging efficiency and quality, the traditional method of manually bagging and sealing has become increasingly inadequate to meet actual production needs due to its high labor intensity, low efficiency, and inconsistent sealing quality.

[0003] However, existing automatic sealing structures for bag openings are difficult to guarantee the flatness and tightness of the opening during use. For example, some structures simply close the bag opening by mechanical pressing or heat sealing, lacking careful treatment around the bag opening. This can easily lead to wrinkles at the bag opening, resulting in gaps at the seal and preventing the formation of a tight seal. Consequently, during subsequent handling and storage, external dust and moisture can easily enter the bag, affecting the quality of the packaged items and potentially causing internal items to scatter. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic sealing structure for bag mouths of bagging machines. This automatic sealing structure solves the problem that wrinkles appear at the bag mouth during sealing, resulting in gaps at the seal and preventing the formation of a tight seal environment, which affects the quality of packaged items and may even cause internal items to fall out.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An automatic bag-sealing structure for a bag-making machine includes a sealing strip at the top of the machine body, a fixing strip fixedly installed on the top of the sealing strip, the fixing strip being slidably connected to the inner side of the machine body, a telescopic cylinder fixedly installed on the top of the fixing strip, the telescopic cylinder being fixedly installed on the top of the machine body, and a cutter provided on the left side of the fixing strip.

[0007] Active components are used to improve the sealing effect of the sealing strip on the bag;

[0008] A movable component for cleaning the surface of the sealing strip;

[0009] The movable component includes: a connecting strip, which is fixedly installed on the right side of a fixed strip; a fixed block is fixedly installed on the top of the connecting strip; a threaded rod is rotatably connected to the bottom of the fixed block; a sliding plate is threadedly connected to the surface of the threaded rod; a connecting block is fixedly installed on the surface of the sliding plate; a movable plate is hinged to the bottom of the connecting block; a slider is hinged to the bottom of the movable plate; a fixed frame is fixedly installed on the outside of the slider; a connecting bracket is slidably connected to the top of the fixed frame; and the connecting bracket is slidably connected to the inside of the connecting strip.

[0010] Preferably, a long plate is fixedly installed on the top of the cutter, the long plate is fixedly installed on the left side of the connecting strip, a movable shaft runs through the surface of the long plate, a pressure plate is fixedly installed at the bottom of the movable shaft, an insert rod is fixedly installed on the right side of the movable shaft, a rotating shaft is provided on the surface of the insert rod, the rotating shaft is fixedly installed at the top of the threaded rod, and the insert rod is slidably connected to the surface of the rotating shaft.

[0011] Preferably, a fixing spring is fixedly installed on the surface of the movable shaft, and the fixing spring is fixedly installed on the top of the long plate.

[0012] Preferably, the moving component includes: a moving plate, the moving plate being fixedly installed on the left side of the slider, a cleaning block being fixedly installed on the surface of the moving plate, and a cleaning wheel being rotatably connected to the inner side of the cleaning block.

[0013] Preferably, a gear is fixedly installed on the outer side of the cleaning wheel, and a rack meshes with the top of the gear, with the rack fixedly installed at the bottom of the fixing strip.

[0014] Preferably, the surface of the connecting strip is provided with a sliding groove, and the surface of the rotating shaft is provided with an arc-shaped groove.

[0015] Preferably, the cross-section of the cleaning block is U-shaped, and the cross-section of the fixing frame is L-shaped.

[0016] By employing the above technical solution, this utility model provides an automatic sealing structure for the bag opening of a bagging machine. It possesses at least the following beneficial effects:

[0017] (1) By setting the movable components, the long plate slides down and the pressure plate abuts against the top of the bag. The reverse abutting force drives the pressure plate and the movable axis to slide up. When the movable axis slides up, it drives the insertion rod to slide on the surface of the rotating shaft, which drives the rotating shaft to rotate. When the rotating shaft rotates, it drives the bottom threaded rod to rotate. When the threaded rod rotates, it drives the surface slide plate to slide down and abut against the movable plate, which drives the slider to move away from the center point of the connecting strip. This allows the slider to smooth the surface of the bag, preventing wrinkles and unevenness at the opening of the bag during sealing, which would affect the sealing effect. This improves the tightness and tightness of the bag opening seal and ensures the quality of the seal.

[0018] (2) By setting up a moving component, the slider will also drive the moving plate to slide when it slides. When the moving plate slides, it will drive the cleaning block and gear to move on the surface of the sealing strip. Since the gear and rack mesh, the gear and the inner cleaning wheel will rotate. The rotation of the cleaning wheel will clean the surface of the sealing strip after use, preventing dust, debris and other dirt from remaining on the surface of the sealing strip after long-term use, keeping the sealing strip clean, extending the service life of the sealing strip, and reducing maintenance costs and the frequency of replacing the sealing strip. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0020] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0021] Figure 2 This is a front view structural diagram of the sealing strip in this utility model;

[0022] Figure 3 This is a front view structural diagram of the movable component in this utility model;

[0023] Figure 4 This is a side view of the movable component in this utility model.

[0024] Figure 5 This is a front view structural diagram of the mobile component in this utility model.

[0025] In the diagram: 1. Body; 2. Sealing strip; 3. Fixing strip; 4. Telescopic cylinder; 6. Cutter; 7. Moving component; 71. Connecting strip; 72. Fixing block; 73. Threaded rod; 74. Slide plate; 75. Connecting block; 76. Moving plate; 77. Slider; 78. Fixing frame; 79. Connecting frame; 710. Long plate; 713. Moving shaft; 714. Pressure plate; 715. Insert rod; 716. Rotating shaft; 717. Fixing spring; 8. Moving component; 81. Moving plate; 82. Cleaning block; 83. Cleaning wheel; 84. Gear; 85. Rack; 7100. Slide groove; 7160. Arc groove. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] Example 1

[0028] An automatic sealing structure for bag openings in a bagging machine, such as Figures 1-4 As shown, it includes a sealing strip 2 set at the top of the machine body 1, a fixing strip 3 fixedly installed on the top of the sealing strip 2, the fixing strip 3 is slidably connected to the inner side of the machine body 1, a telescopic cylinder 4 fixedly installed on the top of the fixing strip 3, the telescopic cylinder 4 is fixedly installed on the top of the machine body 1, and a cutter 6 is set on the left side of the fixing strip 3.

[0029] Active component 7 is used to improve the sealing effect of sealing strip 2 on the bag;

[0030] The movable component 8 is used to clean the surface of the sealing strip 2;

[0031] First, the active component 7 includes: a connecting strip 71, which is fixedly installed on the right side of the fixed strip 3; a fixed block 72 is fixedly installed on the top of the connecting strip 71; a threaded rod 73 is rotatably connected to the bottom of the fixed block 72; a sliding plate 74 is threadedly connected to the surface of the threaded rod 73; a connecting block 75 is fixedly installed on the surface of the sliding plate 74; a movable plate 76 is hinged to the bottom of the connecting block 75; a slider 77 is hinged to the bottom of the movable plate 76; a fixed frame 78 is fixedly installed on the outside of the slider 77; a connecting frame 79 is slidably connected to the top of the fixed frame 78; and the connecting frame 79 is slidably connected to the inside of the connecting strip 71. The slider 77 can slide freely on the inside of the connecting strip 71, and the fixed frame 78 can slide freely on the surface of the connecting frame 79, allowing the slider 77 to smooth the opening of the bag without restriction.

[0032] Secondly, a long plate 710 is fixedly installed on the top of the cutter 6. The long plate 710 is fixedly installed on the left side of the connecting strip 71. A movable shaft 713 runs through the surface of the long plate 710. A pressure plate 714 is fixedly installed at the bottom of the movable shaft 713. An insert rod 715 is fixedly installed on the right side of the movable shaft 713. A rotating shaft 716 is provided on the surface of the insert rod 715. The rotating shaft 716 is fixedly installed at the top of the threaded rod 73. The insert rod 715 is slidably connected to the surface of the rotating shaft 716. The cutter 6 can cut the bag when the sealing strip 2 seals the opening by sliding downward.

[0033] Furthermore, a fixing spring 717 is fixedly installed on the surface of the movable shaft 713. The fixing spring 717 is fixedly installed on the top of the long plate 710. The fixing spring 717 on the surface of the movable shaft 713 can achieve the effect of resetting after the movable shaft 713 has finished sliding.

[0034] In this embodiment, the movable component 7 is configured such that when the long plate 710 slides downward, the pressure plate 714 abuts against the top of the bag. The reverse abutting force drives the pressure plate 714 and the movable shaft 713 to slide upward. When the movable shaft 713 slides upward, it drives the insertion rod 715 to slide on the surface of the rotating shaft 716, causing the rotating shaft 716 to rotate. When the rotating shaft 716 rotates, it drives the bottom threaded rod 73 to rotate. When the threaded rod 73 rotates, it drives the surface slide plate 74 to slide downward and abut against the movable plate 76, causing the slider 77 to move away from the center point of the connecting strip 71. This allows the slider 77 to smooth the surface of the bag, preventing wrinkles and unevenness at the opening of the bag during sealing, which would affect the sealing effect, improve the tightness and tightness of the bag opening seal, and ensure the quality of the seal.

[0035] Example 2

[0036] like Figure 5 As shown, the moving component 8 includes: a moving plate 81, which is fixedly installed on the left side of the slider 77, and a cleaning block 82 is fixedly installed on the surface of the moving plate 81. A cleaning wheel 83 is rotatably connected to the inner side of the cleaning block 82.

[0037] Furthermore, a gear 84 is fixedly installed on the outer side of the cleaning wheel 83, and a rack 85 meshes with the top of the gear 84. The rack 85 is fixedly installed at the bottom of the fixed strip 3. The gear 84 can slide on the bottom end of the meshing rack 85 to drive the rotation of the cleaning wheel 83.

[0038] Finally, the surface of the connecting strip 71 is provided with a groove 7100, which allows the connecting frame 79 to slide inside the connecting strip 71. The surface of the rotating shaft 716 is provided with an arc-shaped groove 7160, which allows the rotating shaft 716 to rotate when the insert rod 715 slides. The cleaning block 82 has a U-shaped cross section, which can improve the fit with the sealing strip. The fixing bracket 78 has an L-shaped cross section, which can improve the connection with the connecting frame 79.

[0039] In this embodiment, by setting the moving component 8, when the slider 77 slides, it will also drive the moving plate 81 to slide. When the moving plate 81 slides, it will drive the cleaning block 82 and the gear 84 to move on the surface of the sealing strip 2. Since the gear 84 meshes with the rack 85, it will drive the gear 84 and the inner cleaning wheel 83 to rotate. The rotation of the cleaning wheel 83 will clean the surface of the sealing strip 2 after use, preventing dust, debris and other dirt from remaining on the surface of the sealing strip 2 after long-term use, keeping the sealing strip 2 clean, extending the service life of the sealing strip 2, and reducing maintenance costs and the frequency of replacing the sealing strip 2.

[0040] This utility model discloses an automatic bag-sealing structure for a bag-making machine. In use, the packaged item is placed on a material plate, and while the bag is being moved, the suction device is activated, causing the suction cups at the bottom to open the bag opening. A hydraulic rod then pushes the material plate, allowing the packaged material to enter the bag for packaging. When sealing the opening is required, a telescopic cylinder 4 is activated, causing the fixing strip 3 and sealing strip 2 to slide downwards, thus sealing the opening. When the telescopic cylinder 4 is activated, the downward sliding fixing strip 3 first causes the outer long plate 710 to slide downwards. As the long plate 710 slides downwards, the pressure plate 714 abuts against the top of the bag. The reverse abutment force causes the pressure plate 714 and the movable shaft 713 to slide upwards. When the movable shaft 713 slides upwards, it causes the insertion rod 715 to rotate. The shaft 716 slides at the arc-shaped groove 7160 on its surface, thereby driving the shaft 716 to rotate. When the shaft 716 rotates, it drives the bottom threaded rod 73 to rotate. When the threaded rod 73 rotates, it drives the surface slide plate 74 to slide downward. When the slide plate 74 slides downward, it drives the bottom slider 77 to press firmly against the top of the bag. When the slide plate 74 slides downward, it also drives the slider 77 to move away from the center point of the connecting strip 71 through the connecting block 75 against the movable plate 76. This allows the slider 77 to smooth the surface of the bag, preventing wrinkles or unevenness at the opening of the bag during sealing, which would affect the sealing effect. This improves the tightness and tightness of the bag opening seal, ensures the quality of the seal, and better encapsulates the packaged items, avoiding problems such as the internal items scattering during subsequent handling and storage.

[0041] When slider 77 slides, it also drives moving plate 81 to slide. When moving plate 81 slides, it drives cleaning block 82 to move on the surface of sealing strip 2. When cleaning block 82 moves, it drives gear 84 to slide at the bottom of meshing rack 85, thereby driving gear 84 to rotate. When gear 84 rotates, it drives cleaning wheel 83 inside cleaning block 82 to rotate, thereby cleaning the surface of sealing strip 2 after use. This prevents dust, debris and other dirt from remaining on the surface of sealing strip 2 after long-term use, keeps sealing strip 2 clean, and allows it to perform better sealing function the next time it is used. It avoids the sealing fit and sealing performance being affected by dirt, extends the service life of sealing strip 2, reduces corrosion and damage that may be caused by dirt adhesion, ensures the long-term stable and reliable operation of the automatic sealing structure of bag bag machine, and reduces maintenance costs and the frequency of replacing sealing strip 2.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A bag mouth automatic sealing structure of a bagging machine, comprising a sealing strip (2) arranged at the top end of a machine body (1), characterized in that: A fixing strip (3) is fixedly installed on the top of the sealing strip (2). The fixing strip (3) is slidably connected to the inner side of the machine body (1). A telescopic cylinder (4) is fixedly installed on the top of the fixing strip (3). The telescopic cylinder (4) is fixedly installed on the top of the machine body (1). A cutter (6) is provided on the left side of the fixing strip (3). Active component (7) is used to improve the sealing effect of the sealing strip (2) on the bag; The movable component (8) is used to clean the surface of the sealing strip (2); The active component (7) includes: a connecting strip (71), which is fixedly installed on the right side of the fixing strip (3), a fixing block (72) is fixedly installed on the top of the connecting strip (71), a threaded rod (73) is rotatably connected to the bottom of the fixing block (72), a sliding plate (74) is threadedly connected to the surface of the threaded rod (73), a connecting block (75) is fixedly installed on the surface of the sliding plate (74), a movable plate (76) is hinged to the bottom of the connecting block (75), a slider (77) is hinged to the bottom of the movable plate (76), a fixing frame (78) is fixedly installed on the outside of the slider (77), a connecting frame (79) is slidably connected to the top of the fixing frame (78), and the connecting frame (79) is slidably connected to the inside of the connecting strip (71).

2. The automatic sealing structure for the bag opening of a bagging machine according to claim 1, characterized in that: A long plate (710) is fixedly installed on the top of the cutter (6). The long plate (710) is fixedly installed on the left side of the connecting strip (71). A movable shaft (713) runs through the surface of the long plate (710). A pressure plate (714) is fixedly installed at the bottom of the movable shaft (713). A plug rod (715) is fixedly installed on the right side of the movable shaft (713). A rotating shaft (716) is provided on the surface of the plug rod (715). The rotating shaft (716) is fixedly installed at the top of the threaded rod (73). The plug rod (715) is slidably connected to the surface of the rotating shaft (716).

3. The automatic sealing structure for the bag opening of a bagging machine according to claim 2, characterized in that: A fixing spring (717) is fixedly installed on the surface of the movable shaft (713), and the fixing spring (717) is fixedly installed on the top of the long plate (710).

4. The automatic sealing structure for the bag opening of a bagging machine according to claim 1, characterized in that: The moving component (8) includes: a moving plate (81), which is fixedly installed on the left side of the slider (77), and a cleaning block (82) is fixedly installed on the surface of the moving plate (81), and a cleaning wheel (83) is rotatably connected to the inner side of the cleaning block (82).

5. The automatic sealing structure for the bag opening of a bagging machine according to claim 4, characterized in that: A gear (84) is fixedly installed on the outside of the cleaning wheel (83), and a rack (85) meshes with the top of the gear (84). The rack (85) is fixedly installed at the bottom of the fixing strip (3).

6. The automatic sealing structure for the bag opening of a bagging machine according to claim 2, characterized in that: The surface of the connecting strip (71) is provided with a sliding groove (7100), and the surface of the rotating shaft (716) is provided with an arc groove (7160).

7. The automatic sealing structure for the bag opening of a bagging machine according to claim 4, characterized in that: The cleaning block (82) has a U-shaped cross-section, and the fixing frame (78) has an L-shaped cross-section.