Efficient heat sealing device for plastic bags

Abstract

The utility model relates to the technical field of sealing devices, and discloses an efficient plastic bag heat sealing device which comprises an operation table, a movable plate is movably installed on the operation table, a fixing frame is fixedly installed at the right end of the top of the movable plate, and a pressing roller is movably installed on the fixing frame. And an electric telescopic rod is fixedly mounted in the middle of the top of the operation table. The first gear can push the movable plate to move to the position below the heat sealing block, the heat sealing block on the connecting frame can conduct heat sealing on a plurality of plastic bags on the fixing frame at the same time, after heat sealing is completed, the electric telescopic rod can drive the connecting frame to move upwards to reset, at the moment, the connecting block can move upwards along with the connecting frame, and at the moment, the meshing groove can drive the second gear to rotate reversely; and the first gear can drive the movable plate to move out from the lower portion of the heat sealing block, so that the multiple plastic bags can be subjected to heat sealing automatically at the same time, workers do not need to take the plastic bags one by one for heat sealing, the heat sealing efficiency is improved, and the workload of the workers is reduced.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, and in particular to a high-efficiency heat sealing device for plastic bags. Background Technology

[0002] Hot-press sealing involves heating the material at the sealing point in a certain way until it reaches a viscous state, and then applying pressure to seal it. It is generally done using a hot-press sealing device or a hot-press sealing machine.

[0003] Existing heat sealing machines typically require manual operation to seal plastic bags. Workers need to hold the packaging bag with both hands to allow it to smoothly enter the heat sealing machine for sealing. This method can only seal one plastic bag at a time, which is inefficient and requires a large amount of work from the workers. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-efficiency heat-sealing device for plastic bags.

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

[0006] A high-efficiency heat-sealing device for plastic bags includes an operating table. A movable plate is movably mounted on the operating table. A fixed frame is fixedly mounted on the top right end of the movable plate. A pressure roller is movably mounted on the fixed frame. An electric telescopic rod is fixedly mounted at the top center of the operating table. The telescopic end of the electric telescopic rod extends downward through the operating table. A connecting frame is provided inside the operating table. A heat-sealing block is fixedly mounted at the bottom of the connecting frame. A controller is fixedly mounted on the side wall of the operating table. A movable groove is opened on the right side wall of the operating table corresponding to the position of the connecting frame. A connecting block is movably mounted in the movable groove and fixedly connected to the right end of the connecting frame. A movable rod is provided on the left side of the connecting block and is movably mounted on the side wall of the operating table.

[0007] As a further embodiment of this utility model, a meshing groove is provided on the left side of the connecting block, and a second gear is fixedly installed on the movable rod at the position corresponding to the meshing groove. The second gear meshes with the meshing groove. A second transmission wheel is fixedly installed at the top of the movable rod, and a transmission belt is movably installed on the second transmission wheel. A section of empty groove is provided on the top of the meshing groove on the connecting block, and the empty groove prevents the connecting block from contacting the second gear.

[0008] As a further embodiment of this utility model, a rotating rod is movably installed on the right side of the operating table corresponding to the position of the movable plate. A first transmission wheel is fixedly installed at the right end of the rotating rod, and the other end of the transmission belt is movably connected to the first transmission wheel. A connecting groove is opened on the right side of the movable plate, and a first gear is fixedly installed at the left end of the rotating rod. The first gear meshes with the groove at the top of the connecting groove.

[0009] As a further embodiment of this utility model, a connecting cover is fixedly installed on the top of the connecting frame, a movable block is movably installed inside the connecting cover, a compression spring is fixedly installed at the bottom of the movable block, and the telescopic end of the electric telescopic rod penetrates the connecting cover and is fixedly connected to the top of the movable block.

[0010] As a further embodiment of this utility model, a limiting groove is provided on the fixed frame at the position corresponding to the pressure roller, and the two ends of the pressure roller are movably engaged in the limiting groove. A pressure spring is fixedly installed between the top of the limiting groove and the two ends of the pressure roller.

[0011] As a further embodiment of this utility model, a sliding groove is provided on the operating table, and the bottom of the movable plate can be movably installed in the sliding groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] In this invention, the controller can control the electric telescopic rod to move the connecting frame downwards. When the connecting frame moves downwards, it can move the connecting block downwards. The meshing groove on the connecting block meshes with the second gear, which can drive the movable rod to control the rotation of the second transmission wheel. The second transmission wheel can drive the first transmission wheel to rotate through the transmission belt. The first transmission wheel can drive the rotating rod to control the rotation of the first gear. The first gear can push the movable plate to move below the heat-sealing block. The heat-sealing block on the connecting frame can simultaneously heat-seal multiple plastic bags on the fixed frame. After heat sealing is completed, the electric telescopic rod will drive the connecting frame to move upwards and reset. At this time, the connecting block will move upwards with the connecting frame. At this time, the meshing groove will drive the second gear to reverse, thereby driving the first gear to reverse. The first gear can drive the movable plate to move out from below the heat-sealing block, thus achieving automatic heat sealing of multiple plastic bags at the same time. There is no need for workers to pick up and heat seal them one by one, which improves heat sealing efficiency and reduces the workload of workers. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency heat-sealing device for plastic bags proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a high-efficiency heat-sealing device for plastic bags proposed in this utility model;

[0016] Figure 3 This utility model Figure 2Enlarged view of point A in the middle;

[0017] Figure 4 This utility model Figure 2 Enlarged view of section B in the middle.

[0018] In the diagram: 1. Operating platform; 2. Movable plate; 3. Fixed frame; 4. Pressure roller; 5. Controller; 6. Slide groove; 7. Connecting frame; 8. Heat sealing block; 9. Connecting cover; 10. Electric telescopic rod; 11. Movable groove; 12. Connecting block; 13. First transmission wheel; 14. Transmission belt; 15. Rotating rod; 16. Connecting groove; 17. First gear; 18. Movable rod; 19. Second transmission wheel; 20. Second gear; 21. Meshing groove; 22. Limiting groove; 23. Pressure spring; 24. Movable block; 25. Compression spring. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4A high-efficiency heat-sealing device for plastic bags includes an operating table 1, a movable plate 2 movably mounted on the operating table 1, a fixed frame 3 fixedly mounted on the top right end of the movable plate 2, a pressure roller 4 movably mounted on the fixed frame 3, an electric telescopic rod 10 fixedly mounted at the top center of the operating table 1, the telescopic end of the electric telescopic rod 10 extending downward through the operating table 1, a connecting frame 7 provided inside the operating table 1, a heat-sealing block 8 fixedly mounted at the bottom of the connecting frame 7, a controller 5 fixedly mounted on the side wall of the operating table 1, and a right-hand side of the operating table 1... A movable groove 11 is provided on the side wall corresponding to the position of the connecting frame 7. A connecting block 12 is movably installed in the movable groove 11. The connecting block 12 is fixedly connected to the right end of the connecting frame 7. A movable rod 18 is provided on the left side of the connecting block 12. The movable rod 18 is movably installed on the side wall of the operating table 1. When the movable plate 2 moves to the bottom of the heat sealing block 8, the fixed frame 3 will be aligned with the connecting frame 7. The electric telescopic rod 10 drives the heat sealing block 8 on the connecting frame 7 to heat seal multiple plastic bags on the fixed frame 3 at the same time, which effectively improves the heat sealing efficiency.

[0023] In this embodiment, a meshing groove 21 is provided on the left side of the connecting block 12. A second gear 20 is fixedly installed on the movable rod 18 at the position corresponding to the meshing groove 21. The second gear 20 meshes with the meshing groove 21. A second transmission wheel 19 is fixedly installed at the top of the movable rod 18. A transmission belt 14 is movably installed on the second transmission wheel 19. A slot is provided on the top of the meshing groove 21 on the connecting block 12. The slot prevents the connecting block 12 from contacting the second gear 20. A rotating rod 15 is movably installed on the right side of the operating table 1 at the position corresponding to the movable plate 2. A first transmission wheel 13 is fixedly installed at the right end of the rotating rod 15. The other end of the transmission belt 14 is movably connected to the first transmission wheel 13. A connecting groove 16 is provided on the right side of the movable plate 2. A first gear 17 is fixedly installed on the left end of 5. The first gear 17 meshes with the groove at the top of the connecting groove 16. The controller 5 can control the electric telescopic rod 10 to drive the connecting frame 7 to move down. When the connecting frame 7 moves down, it can drive the connecting block 12 to move down. The meshing groove 21 on the connecting block 12 meshes with the second gear 20, which can drive the movable rod 18 to control the second transmission wheel 19 to rotate. The second transmission wheel 19 can drive the first transmission wheel 13 to rotate through the transmission belt 14. The first transmission wheel 13 is fixedly connected to the rotating rod 15. The first transmission wheel 13 can drive the rotating rod 15 to control the first gear 17 to rotate. Since the first gear 17 meshes with the groove at the top of the connecting groove 16, the first gear 17 can push the movable plate 2 to move below the heat sealing block 8.

[0024] In this embodiment, a connecting cover 9 is fixedly installed on the top of the connecting frame 7, and a movable block 24 is movably installed inside the connecting cover 9. A compression spring 25 is fixedly installed at the bottom of the movable block 24. The telescopic end of the electric telescopic rod 10 penetrates the connecting cover 9 and is fixedly connected to the top of the movable block 24. When the electric telescopic rod 10 pushes the connecting frame 7 down, the compression spring 25 inside the connecting cover 9 can ensure that there is a certain redundancy between the heat sealing block 8 and the fixed frame 3, so as to avoid the situation where the downward pressure of the heat sealing block 8 is too large and melts through the plastic bag.

[0025] In this embodiment, a limiting groove 22 is provided on the fixed frame 3 at the position corresponding to the pressure roller 4. The two ends of the pressure roller 4 are movably engaged in the limiting groove 22. A pressure spring 23 is fixedly installed between the top of the limiting groove 22 and the two ends of the pressure roller 4. The pressure spring 23 will press the pressure roller 4 downward to fix the plastic bag and prevent the plastic bag from shifting during heat sealing. At the same time, since the pressure roller 4 can move up and down, it can fix plastic bags of different thicknesses.

[0026] In this embodiment, a slide groove 6 is provided on the operating table 1, and the bottom of the movable plate 2 can be movably installed in the slide groove 6, so that the movable plate 2 can move on the operating table 1.

[0027] As can be seen from the above description, the above embodiments of this utility model achieve the following technical effects: When in use, the end of the plastic bag that needs to be sealed is passed under the pressure roller 4, and the pressure spring 23 will press the pressure roller 4 downward to fix the plastic bag and prevent the plastic bag from shifting during heat sealing. At the same time, since the pressure roller 4 can move up and down, it can fix plastic bags of different thicknesses.

[0028] When the fixed frame 3 is full of plastic bags, the controller 5 can control the electric telescopic rod 10 to move the connecting frame 7 downward. When the connecting frame 7 moves downward, it can move the connecting block 12 downward. The meshing groove 21 on the connecting block 12 meshes with the second gear 20, which can drive the movable rod 18 to control the second transmission wheel 19 to rotate. The second transmission wheel 19 can drive the first transmission wheel 13 to rotate through the transmission belt 14. The first transmission wheel 13 is fixedly connected to the rotating rod 15. The first transmission wheel 13 can drive the rotating rod 15 to control the first gear 17 to rotate. Since the first gear 17 meshes with the groove at the top of the connecting groove 16, the first gear 17 can push the movable plate 2 to move below the heat sealing block 8. At this time, the fixed frame 3 will be aligned with the connecting frame 7. The heat sealing block 8 on the connecting frame 7 can simultaneously heat seal multiple plastic bags on the fixed frame 3, effectively improving the heat sealing efficiency. When the heat sealing is completed, the electric telescopic rod 10 will drive the connecting frame 7 to move upward and reset. At this time, the connecting block 12 will move upward with the connecting frame 7. At this time, the meshing groove 21 will drive the second gear 20 to reverse, thereby driving the first gear 17 to reverse. The first gear 17 can drive the movable plate 2 to move out from under the heat sealing block 8, making it easier for workers to remove the heat-sealed plastic bag. This achieves the ability to automatically heat seal multiple plastic bags at the same time, eliminating the need for workers to pick them up one by one for heat sealing, improving heat sealing efficiency, reducing the workload of workers, and ensuring that the heat sealing time is fixed each time, avoiding the situation where the plastic bag is not sealed successfully. An empty groove is provided at the top of the meshing groove 21 to ensure that the meshing groove 21 and the second gear 20 are separated when the heat sealing block 8 moves downward for heat sealing. The first gear 17 will not drive the plastic bag on the movable plate 2 to move, resulting in heat sealing failure.

[0029] Because the thickness of the heat-sealed plastic bags varies, when the electric telescopic rod 10 pushes the connecting frame 7 down, the compression spring 25 inside the connecting cover 9 can ensure that there is a certain redundancy between the heat-sealing block 8 and the fixing frame 3, so as to avoid the situation where the downward pressure of the heat-sealing block 8 is too large and melts through the plastic bag.

[0030] The control circuit of the electrical components in this solution can be implemented by those skilled in the art through simple programming. It is common knowledge in the field and is used without modification. Furthermore, since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A high-efficiency heat-sealing device for plastic bags, comprising an operating table (1), characterized in that, A movable plate (2) is movably installed on the operating table (1). A fixed frame (3) is fixedly installed on the top right end of the movable plate (2). A pressure roller (4) is movably installed on the fixed frame (3). An electric telescopic rod (10) is fixedly installed at the top middle position of the operating table (1). The telescopic end of the electric telescopic rod (10) extends downward through the operating table (1). A connecting frame (7) is provided inside the operating table (1). A heat sealing block (8) is fixedly installed at the bottom of the connecting frame (7). A controller (5) is fixedly installed on the side wall of the operating table (1). A movable groove (11) is opened on the right side wall of the operating table (1) corresponding to the position of the connecting frame (7). A connecting block (12) is movably installed in the movable groove (11). The connecting block (12) is fixedly connected to the right end of the connecting frame (7). A movable rod (18) is provided on the left side of the connecting block (12). The movable rod (18) is movably installed on the side wall of the operating table (1).

2. The high-efficiency heat-sealing device for plastic bags according to claim 1, characterized in that, The connecting block (12) has a meshing groove (21) on its left side. A second gear (20) is fixedly installed on the movable rod (18) at the position corresponding to the meshing groove (21). The second gear (20) meshes with the meshing groove (21). A second transmission wheel (19) is fixedly installed at the top of the movable rod (18). A transmission belt (14) is movably installed on the second transmission wheel (19). A slot is provided on the top of the meshing groove (21) of the connecting block (12). The slot prevents the connecting block (12) from contacting the second gear (20).

3. The high-efficiency heat-sealing device for plastic bags according to claim 2, characterized in that, A rotating rod (15) is movably installed on the right side of the operating table (1) corresponding to the position of the movable plate (2). A first transmission wheel (13) is fixedly installed on the right end of the rotating rod (15). The other end of the transmission belt (14) is movably connected to the first transmission wheel (13). A connecting groove (16) is opened on the right side of the movable plate (2). A first gear (17) is fixedly installed on the left end of the rotating rod (15). The first gear (17) meshes with the groove at the top of the connecting groove (16).

4. The high-efficiency heat-sealing device for plastic bags according to claim 1, characterized in that, A connecting cover (9) is fixedly installed on the top of the connecting frame (7). A movable block (24) is movably installed inside the connecting cover (9). A compression spring (25) is fixedly installed at the bottom of the movable block (24). The telescopic end of the electric telescopic rod (10) penetrates the connecting cover (9) and is fixedly connected to the top of the movable block (24).

5. The high-efficiency heat-sealing device for plastic bags according to claim 1, characterized in that, A limiting groove (22) is provided on the fixed frame (3) at the position corresponding to the pressure roller (4). The two ends of the pressure roller (4) are movably engaged in the limiting groove (22). A pressure spring (23) is fixedly installed between the top of the limiting groove (22) and the two ends of the pressure roller (4).

6. The high-efficiency heat-sealing device for plastic bags according to claim 1, characterized in that, The operating table (1) is provided with a sliding groove (6), and the bottom of the movable plate (2) can be movably installed in the sliding groove (6).

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