Packaging bag heat sealing positioning device

By designing a heat-sealing positioning device for packaging bags, components such as rotating rods, rubber pads, and electric push rods are used to eliminate wrinkles in the packaging bags, solving the problem of loose heat sealing caused by improper positioning of the packaging bags, and improving sealing performance and product quality.

CN223645130UActive Publication Date: 2025-12-09WUHAN JINHEHAI PACKAGING CO LTD
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Patent Information

Application Number
CN202520096128.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-12-09
Estimated Expiration
2035-01-16

AI Technical Summary

Technical Problem

Improper placement of packaging bags during positioning can easily cause wrinkles, resulting in incomplete heat sealing, which affects the airtightness, product quality, and shelf life.

Method used

A heat-sealing and positioning device for packaging bags was designed, including a support frame, a positioning platform, a positioning frame, a limiting groove, a rotating rod, a driving plate, an auxiliary plate, a push plate, a rubber pad, an electric push rod, and a heating plate. The device flattens the folds of the packaging bag by rotating the auxiliary plate, pushing the positioning plate and the rubber pad, and then heat-sealing the bag using the electric push rod.

Benefits of technology

It effectively eliminates wrinkles in packaging bags, improves heat sealing quality, and ensures airtightness, thereby enhancing product quality and shelf life.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of heat-sealing positioning equipment, and discloses a packaging bag heat-sealing positioning device which comprises a supporting frame, a positioning platform is fixedly connected to the upper surface of the supporting frame, a positioning frame is fixedly connected to the front face of the positioning platform, and a limiting groove is formed in the upper surface of the positioning frame. The inner wall of the limiting groove is rotationally connected with a rotating rod, and the surface of the rotating rod is fixedly sleeved with a driving plate. Then a push handle is used for pushing a push plate to move, the push plate moves to drive the rubber pressing pad to move, the rubber pressing pad moves to flatten wrinkles of the packaging bag, then a hollow clamping plate is rotated, the hollow clamping plate rotates to be clamped on a clamping plate through a clamping block to fix an auxiliary plate, and at the moment, the rubber pressing pad is pressed on the other side of the packaging bag; and then an electric push rod is opened, the electric push rod operates to push a heating plate to move downwards to conduct heat sealing on the packaging bag, and therefore the device has the effects of flattening the wrinkled packaging bag and improving the heat sealing quality.
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Description

Technical Field

[0001] This application belongs to the technical field of heat-sealing positioning equipment, specifically a heat-sealing positioning device for packaging bags. Background Technology

[0002] Packaging bags are bags used to package various goods, facilitating transportation and storage during production and distribution. They are widely used in daily life and industrial production. Used plastic bags are ultimately disposed of in landfills like regular waste, with the plastic being recycled. Heat-sealing machines are used in the production of packaging bags for joining and sealing.

[0003] Referring to CN221418877U, which relates to a packaging bag heat sealing machine with a positioning and guiding structure, this invention addresses the shortcomings of existing heat sealing machines. These machines lack height adjustment, forcing workers to work in a passive, prolonged sitting or standing position, which is detrimental to their health. Furthermore, the platforms of these machines are either too large, occupying too much space, or too small, unable to hold packaging bags. This invention provides a packaging bag heat sealing machine with a positioning and guiding structure. The machine includes a base with a liftable operating platform at its upper end. A heat pressure plate is located at the front end of a guide plate, and a heat pressure table that cooperates with the heat pressure plate is fixed to the upper surface of the operating platform. Extension platforms are located on both sides of the operating platform, and a rotatable bidirectional threaded rod is located at the lower end of the operating platform. When the bidirectional threaded rod rotates, it can simultaneously cause the extension platforms to flip downwards and close. Both ends of the heat press are foldable, allowing them to be opened during use and closed when not in use, saving space and allowing for height adjustment according to worker needs.

[0004] However, the following problems still exist: when the packaging bag is positioned, improper placement can easily cause wrinkles in the packaging bag, resulting in incomplete heat sealing, reduced sealing performance of the packaging bag, and impact on product quality and shelf life. Utility Model Content

[0005] The purpose of this application is to provide a packaging bag heat-sealing positioning device to solve the problem mentioned above that improper placement of packaging bags during positioning can easily cause wrinkles, resulting in incomplete heat sealing, reduced sealing performance, and impact on product quality and shelf life.

[0006] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0007] Based on the above technical solution, the present invention can be further improved as follows;

[0008] A heat-sealing positioning device for packaging bags includes a support frame, a positioning platform fixedly connected to the upper surface of the support frame, a positioning bracket fixedly connected to the front of the positioning platform, a limiting groove formed on the upper surface of the positioning bracket, a rotating rod rotatably connected to the inner wall of the limiting groove, a driving plate fixedly sleeved on the surface of the rotating rod, an auxiliary plate fixedly connected to the side of the driving plate away from the positioning bracket, two auxiliary plates, and a push plate slidably connected to the opposite surfaces of the two auxiliary plates, and a rubber pressure pad fixedly connected to the lower surface of the push plate.

[0009] Preferably, a grooved plate is fixedly connected to the front of the auxiliary plate, a round rod is rotatably connected to the inner wall of the grooved plate, a hollow card plate is fixedly sleeved on the surface of the round rod, and a card block is fixedly connected to the inner ring surface of the hollow card plate. When the hollow card plate is rotated, the hollow card plate rotates and uses the card block to lock onto the card plate to fix the auxiliary plate.

[0010] Preferably, a snap-fit ​​plate is fixedly connected to the front of the positioning platform, and a snap-fit ​​groove is formed on the lower surface of the snap-fit ​​plate. The inner wall of the snap-fit ​​groove is adapted to the snap-fit ​​block, and the snap-fit ​​block cooperates with the snap-fit ​​groove to snap the hollow snap-fit ​​plate onto the snap-fit ​​plate.

[0011] Preferably, a push handle is fixedly connected to the upper surface of the push plate. The user uses the push handle to push the push plate to move. The movement of the push plate causes the rubber pressure pad to move, and the movement of the rubber pressure pad flattens the wrinkles of the packaging bag.

[0012] Preferably, a threaded cylinder is embedded on the upper surface of the positioning frame, and a push rod is threadedly connected to the inner wall of the threaded cylinder. A drive wheel is fixedly connected to the top end of the push rod, and a positioning plate is rotatably connected to the bottom end of the push rod. The positioning plate is slidably connected to the side wall of the positioning frame. By setting the drive wheel, it is easy for the user to drive the drive wheel to rotate by pushing the push rod. The rotation of the drive wheel uses the threaded cylinder to push the positioning plate to move and press it onto the packaging bag, thus fixing one side of the packaging bag.

[0013] Preferably, a support plate is fixedly connected to the front of the positioning platform, an electric push rod is fixedly connected to the upper surface of the support plate, and a heating plate is fixedly connected to the bottom end of the electric push rod. By setting the electric push rod, the heating plate can be moved after operation, and the heating plate moves to fit the packaging bag for heat sealing. This is existing technology and will not be described in detail here.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] 1. In this application, the auxiliary plate is first rotated counterclockwise by 90 degrees. Then, the packaging bag is placed on the positioning platform. Next, the drive wheel is rotated, which in turn drives the push rod to rotate. The rotation of the push rod uses the threaded cylinder to push the positioning plate down. The positioning plate presses one side of the packaging bag down. Then, the auxiliary plate is rotated until the rubber pad is pressed on the packaging bag. Then, the push handle is used to push the push plate to move. The movement of the push plate drives the rubber pad to move. The movement of the rubber pad flattens the wrinkles of the packaging bag. Next, the hollow clamping plate is rotated. The rotation of the hollow clamping plate uses the clamping block to fix the auxiliary plate on the clamping plate. At this time, the rubber pad is pressed on the other side of the packaging bag. Then, the electric push rod is opened. The operation of the electric push rod pushes the heating plate down to heat seal the packaging bag. Thus, the equipment has the effect of flattening the wrinkled packaging bag and improving the heat sealing quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main view structure of this application;

[0017] Figure 2 This is a top view of the structure of this application;

[0018] Figure 3 This is a schematic diagram of the main structure of the hollow cardboard plate of this application;

[0019] Figure 4 This is a bottom view of the rubber pressure pad structure of this application.

[0020] The markings in the diagram are: 1. Support frame; 2. Positioning platform; 3. Positioning frame; 4. Threaded cylinder; 5. Push rod; 6. Drive wheel; 7. Rubber pressure pad; 8. Drive plate; 9. Push handle; 10. Push plate; 11. Auxiliary plate; 12. Groove plate; 13. Electric push rod; 14. Heating plate; 15. Hollow clamping plate; 16. Clamping plate; 17. Support plate; 18. Positioning plate; 19. Slot; 20. Clamping block; 21. Limiting slot; 22. Rotating rod; 23. Round rod. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Example:

[0023] Reference Figure 2-4A heat-sealing and positioning device for packaging bags includes a support frame 1. A positioning platform 2 is fixedly connected to the upper surface of the support frame 1. A positioning frame 3 is fixedly connected to the front of the positioning platform 2. A limiting groove 21 is formed on the upper surface of the positioning frame 3. A rotating rod 22 is rotatably connected to the inner wall of the limiting groove 21. A driving plate 8 is fixedly sleeved on the surface of the rotating rod 22. An auxiliary plate 11 is fixedly connected to the side of the driving plate 8 away from the positioning frame 3. By setting the rotating rod 22, the auxiliary plate 11 can be rotated in conjunction with the driving plate 8 when it is driven, which makes it easy to place the packaging bag on the positioning platform 2.

[0024] Reference Figure 2-4 There are two auxiliary plates 11, and a push plate 10 is slidably connected to the opposite surfaces of the two auxiliary plates 11. A rubber pressure pad 7 is fixedly connected to the lower surface of the push plate 10. First, rotate the auxiliary plate 11 counterclockwise by 90 degrees. Then, place the packaging bag on the positioning platform 2. Then, rotate the drive wheel 6. The drive wheel 6 rotates and drives the push rod 5 to rotate. The push rod 5 rotates and pushes the positioning plate 18 down by using the threaded cylinder 4. The positioning plate 18 moves down and presses one side of the packaging bag. Then, rotate the auxiliary plate 11 until the rubber pressure pad 7 presses on the packaging bag. A push handle 9 is fixedly connected to the upper surface of the push plate 10. The user uses the push handle 9 to push the push plate 10 to move. The movement of the push plate 10 drives the rubber pressure pad 7 to move. The movement of the rubber pressure pad 7 flattens the wrinkles of the packaging bag.

[0025] Reference Figure 1-3 A grooved plate 12 is fixedly connected to the front of the auxiliary plate 11. A round rod 23 is rotatably connected to the inner wall of the grooved plate 12. A hollow clamping plate 15 is fixedly sleeved on the surface of the round rod 23. A clamping block 20 is fixedly connected to the inner ring surface of the hollow clamping plate 15. (Refer to...) Figure 1-2 The front of the positioning platform 2 is fixedly connected to a snap-fit ​​plate 16. The lower surface of the snap-fit ​​plate 16 is provided with a snap-fit ​​groove 19. The inner wall of the snap-fit ​​groove 19 is adapted to the snap-fit ​​block 20. Then, the hollow snap-fit ​​plate 15 is rotated. The hollow snap-fit ​​plate 15 rotates and uses the snap-fit ​​block 20 to cooperate with the snap-fit ​​groove 19 to fix the auxiliary plate 11 on the snap-fit ​​plate 16. At this time, the rubber pressure pad 7 is pressed on the other side of the packaging bag. Then, the electric push rod 13 is opened. The electric push rod 13 moves and pushes the heating plate 14 down to heat seal the packaging bag.

[0026] Reference Figure 2-3 The upper surface of the positioning frame 3 is embedded with a threaded cylinder 4. The inner wall of the threaded cylinder 4 is threadedly connected to a push rod 5. The top end of the push rod 5 is fixedly connected to a drive wheel 6. The bottom end of the push rod 5 is rotatably connected to a positioning plate 18. The positioning plate 18 is slidably connected to the side wall of the positioning frame 3. By setting the drive wheel 6, the user can easily drive the drive wheel 6 to rotate by pushing the push rod 5. The rotation of the drive wheel 6 uses the threaded cylinder 4 to push the positioning plate 18 to move and press it onto the packaging bag, thus fixing one side of the packaging bag.

[0027] Reference Figure 1-2The front of the positioning platform 2 is fixedly connected to a support plate 17, and the upper surface of the support plate 17 is fixedly connected to an electric push rod 13. The bottom end of the electric push rod 13 is fixedly connected to a heating plate 14. By setting the electric push rod 13, it can push the heating plate 14 to move after running. The heating plate 14 moves and fits against the packaging bag for heat sealing. This is existing technology and will not be described in detail here.

[0028] The implementation principle of the heat-sealing positioning device for packaging bags in this application is as follows: First, rotate the auxiliary plate 11 counterclockwise by 90 degrees. Then, place the packaging bag on the positioning platform 2. Next, rotate the drive wheel 6. The drive wheel 6 rotates, which in turn rotates the push rod 5. The push rod 5 rotates and pushes the positioning plate 18 downward using the threaded cylinder 4. The positioning plate 18 moves downward and presses one side of the packaging bag. Then, rotate the auxiliary plate 11 until the rubber pad 7 presses on the packaging bag. Next, use the push handle 9 to push the push plate 10 to move. The push plate 10 moves, which in turn moves the rubber pad 7. The rubber pad 7 moves and flattens the wrinkles of the packaging bag. Next, rotate the hollow clamping plate 15. The hollow clamping plate 15 rotates and uses the clamping block 20 to clamp onto the clamping plate 16 to fix the auxiliary plate 11. At this time, the rubber pad 7 is pressed onto the other side of the packaging bag. Then, turn on the electric push rod 13. The electric push rod 13 moves and pushes the heating plate 14 downward to heat-seal the packaging bag. Thus, the device has the effect of flattening the wrinkled packaging bag and improving the heat-sealing quality.

[0029] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A heat-sealing and positioning device for packaging bags, comprising a support frame (1), characterized in that: A positioning platform (2) is fixedly connected to the upper surface of the support frame (1), and a positioning frame (3) is fixedly connected to the front of the positioning platform (2). A limiting groove (21) is opened on the upper surface of the positioning frame (3). A rotating rod (22) is rotatably connected to the inner wall of the limiting groove (21). A driving plate (8) is fixedly sleeved on the surface of the rotating rod (22). An auxiliary plate (11) is fixedly connected to the side of the driving plate (8) away from the positioning frame (3). There are two auxiliary plates (11), and a push plate (10) is slidably connected to the opposite surface of the two auxiliary plates (11). A rubber pressure pad (7) is fixedly connected to the lower surface of the push plate (10).

2. The packaging bag heat-sealing positioning device as described in claim 1, characterized in that: The front of the auxiliary plate (11) is fixedly connected to a grooved plate (12), and a round rod (23) is rotatably connected to the inner wall of the grooved plate (12). A hollow clamping plate (15) is fixedly sleeved on the surface of the round rod (23), and a clamping block (20) is fixedly connected to the inner ring surface of the hollow clamping plate (15).

3. The packaging bag heat-sealing positioning device as described in claim 2, characterized in that: The positioning platform (2) is fixedly connected to a snap-fit ​​plate (16) on the front. The snap-fit ​​plate (16) has a snap-fit ​​groove (19) on its lower surface. The inner wall of the snap-fit ​​groove (19) is adapted to the snap-fit ​​block (20).

4. The packaging bag heat-sealing positioning device as described in claim 1, characterized in that: A push handle (9) is fixedly connected to the upper surface of the push plate (10).

5. The packaging bag heat-sealing positioning device as described in claim 1, characterized in that: The upper surface of the positioning frame (3) is fitted with a threaded cylinder (4), and the inner wall of the threaded cylinder (4) is threadedly connected with a push rod (5). The top end of the push rod (5) is fixedly connected with a drive wheel (6), and the bottom end of the push rod (5) is rotatably connected with a positioning plate (18), and the positioning plate (18) is slidably connected to the side wall of the positioning frame (3).

6. The packaging bag heat-sealing positioning device as described in claim 1, characterized in that: The positioning platform (2) is fixedly connected to a support plate (17) on the front side, and an electric push rod (13) is fixedly connected to the upper surface of the support plate (17). A heating plate (14) is fixedly connected to the bottom end of the electric push rod (13).

Citation Information

Patent Citations

  • Packaging bag heat sealing machine with positioning and guiding structure

    CN221418877U