Integrated connecting device for handle and bag body of portable paper bag

By designing an integrated connection device between the handle and the body of the paper bag, and using a servo motor and hydraulic rod drive, synchronous hot-pressing positioning and limiting of the handles on both sides of the paper bag are achieved, solving the problems of low efficiency and unstable positioning in the existing technology, and improving processing efficiency and stability.

CN224210705UActive Publication Date: 2026-05-08WUXI HUALITE PAPER PROD CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI HUALITE PAPER PROD CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing hot-pressing mechanisms can only hot-press the handle of a paper bag to the bag body on one side, resulting in low processing efficiency and a lack of limiting mechanisms, making it impossible to stably position paper bags of different sizes.

Method used

A device for integrating the handles and body of paper bags was designed. It uses a servo motor to drive a vertical threaded rod and a hydraulic rod, combined with a limiting plate and locking bolts, to achieve synchronous heat-pressing positioning and stable limiting of the handles on both sides of the paper bag, adapting to paper bags of different sizes.

Benefits of technology

It improves processing efficiency and enables stable positioning and heat-pressing of paper bags of different sizes, ensuring processing stability and efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224210705U_ABST
    Figure CN224210705U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable paper bag handle and bag body integrated connecting device which comprises a support, a supporting plate is fixed to the edge of the bottom of the support, a base plate is installed on one side of the support, a servo motor is installed on the top of the base plate, a vertical threaded rod is installed at the output end of the servo motor, and the vertical threaded rod is connected with the base plate. The vertical threaded rod is connected with one end of a movable plate, the movable plate penetrates through a limiting window, the limiting window is formed in the middle of the vertical part of the support, a hot pressing plate is installed at the tail end of the movable plate, hydraulic rods are fixed to the tail end of the top and the tail end of the bottom of the support, and positioning plates are installed at the tail ends of the hydraulic rods. According to the integrated connecting device for the handle and the bag body of the portable paper bag, the novel structural design is adopted, the handles on the two sides of the portable paper bag can be subjected to synchronous hot-pressing positioning, the distance between the hot-pressing mechanisms can be conveniently adjusted, and the integrated connecting device adapts to the portable paper bags of different sizes and is matched with the same adjustable limiting mechanisms on the two sides; and stable positioning of the portable paper bags with different sizes is ensured.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of paper bag production technology, specifically to an integrated connection device for the handle and body of a paper bag. Background Technology

[0002] Handles are an important component of paper bags. They are typically made by pressing the end of the handle to the inside of the paper bag using a hot-pressing process, combined with a water-based resin coating to create a high-density handle area. This design offers advantages such as no additional materials required and 100% recyclability, making it suitable for e-commerce logistics packaging. It is also low-cost and highly resistant to pressure.

[0003] Existing hot-pressing mechanisms can only heat-press the handle to the bag body on one side, which is not only inefficient but also lacks a limiting mechanism, relying solely on manual positioning and failing to provide stable positioning for different paper bags. Therefore, a device for integrating the handle and bag body of paper bags needs to be designed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated connection device for the handle and body of a paper bag, so as to solve the problem mentioned in the background art that the existing hot pressing mechanism can only heat press the handle and body of one side, which not only has low processing efficiency, but also lacks a limiting mechanism and can only rely on manual limiting, making it impossible to stably position different paper bags.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated connection device for the handle and body of a paper bag, comprising a bracket, a support plate fixed to the bottom edge of the bracket, a base plate installed on one side of the bracket, a servo motor installed on the top of the base plate, a vertical threaded rod installed at the output end of the servo motor, the vertical threaded rod being connected to one end of a movable plate, the movable plate passing through a limiting window, the limiting window being located in the middle of the vertical portion of the bracket, a heat-pressing plate installed at the end of the movable plate, hydraulic rods fixed at both the top and bottom ends of the bracket, a positioning plate installed at the end of the hydraulic rods, a limiting plate provided on the other side of the bracket, locking bolts fixed on the top and bottom surfaces of the limiting plate, locking nuts installed on the locking bolts, the locking bolts passing through a track window, the track window being located at the top and bottom ends of the bracket.

[0006] Preferably, the vertical threaded rods are symmetrically distributed about the center of the bracket, the helical directions of the threads on the upper and lower sides of the center of the vertical threaded rods are opposite, and movable plates are symmetrically threaded on the vertical threaded rods.

[0007] Preferably, the movable plate and the hot press plate are symmetrically distributed about the horizontal center of the bracket, and the movable plate and the limiting window are slidably connected.

[0008] Preferably, a stabilizing rod is fixedly installed at one end of the inner side of the bracket, the stabilizing rod passes through a stabilizing hole, and the stabilizing hole is opened in the middle of the movable plate.

[0009] Preferably, the stabilizer bar is fitted to the inner wall of the stabilizer hole, and the center of the stabilizer bar and the center of the movable plate are on the same vertical plane.

[0010] Preferably, the hydraulic rods are symmetrically distributed about the positioning plate, and the positioning plate is symmetrically distributed vertically about the horizontal center of the bracket.

[0011] Preferably, the center of the positioning plate and the center of the hot press plate are on the same vertical plane, and the side view length of the positioning plate is greater than the side view length of the hot press plate.

[0012] Preferably, locking bolts are symmetrically installed at the top and bottom of the limiting plate, the locking bolts are slidably connected to the track window, and the limiting plate is symmetrically distributed about the center of the bracket.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the integrated connection device between the handle and the body of the paper bag adopts a new structural design, which can not only perform synchronous hot pressing and positioning of the handles on both sides of the paper bag, but also the spacing of the hot pressing mechanism can be easily adjusted to adapt to paper bags of different sizes. With the adjustable limiting mechanism on both sides, it ensures stable positioning of paper bags of different sizes.

[0014] 1. A servo motor drives a vertical threaded rod to rotate. The vertical threaded rod uses the opposite spiral directions on both sides of its center to drive symmetrically distributed movable plates to move at the same speed but in opposite directions along the limiting window. The movable plates, with stabilizing holes, slide stably along the stabilizing rod, changing the spacing of the hot press plates. In conjunction with the hydraulic rod, the vertical position of the positioning plate is controlled, and the handles on both sides of the paper bag are synchronously hot-pressed and positioned, improving processing efficiency.

[0015] 2. The limiting plates, along with the locking bolts, slide horizontally along the track window. Adjusting the spacing of the symmetrically distributed limiting plates allows them to limit the paper bags of different sizes from both sides, preventing the paper bags from shifting and ensuring stable hot pressing. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present invention;

[0017] Figure 2 This is a frontal cross-sectional view of the present invention.

[0018] Figure 3 This is a frontal cross-sectional view of the joint between the locking bolt and the track window of this utility model.

[0019] Figure 4This is a side cross-sectional view of the fitting area between the locking bolt and the track window of this utility model.

[0020] Figure 5 This is a top view of the structure of this utility model.

[0021] In the diagram: 1. Bracket; 2. Support plate; 3. Base plate; 4. Servo motor; 5. Vertical threaded rod; 6. Movable plate; 7. Limiting window; 8. Stabilizing rod; 9. Stabilizing hole; 10. Hot press plate; 11. Hydraulic rod; 12. Positioning plate; 13. Limiting plate; 14. Locking bolt; 15. Locking nut; 16. Track window. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: an integrated connection device for the handle and body of a paper bag, comprising a bracket 1, a support plate 2, a base plate 3, a servo motor 4, a vertical threaded rod 5, a movable plate 6, a limiting window 7, a stabilizing rod 8, a stabilizing hole 9, a hot press plate 10, a hydraulic rod 11, a positioning plate 12, a limiting plate 13, a locking bolt 14, a locking nut 15, and a track window 16. The support plate 2 is fixed to the bottom edge of the bracket 1, the base plate 3 is installed on one side of the bracket 1, the servo motor 4 is installed on the top of the base plate 3, and the vertical threaded rod 5 is installed at the output end of the servo motor 4. A vertical threaded rod 5 is connected to one end of a movable plate 6. The movable plate 6 passes through a limiting window 7, which is located in the middle of the vertical part of the bracket 1. A hot press plate 10 is installed at the end of the movable plate 6. A hydraulic rod 11 is fixed at both the top and bottom ends of the bracket 1. A positioning plate 12 is installed at the end of the hydraulic rod 11. A limiting plate 13 is provided on the other side of the bracket 1. Locking bolts 14 are fixed on the top and bottom surfaces of the limiting plate 13. Locking nuts 15 are installed on the locking bolts 14. The locking bolts 14 pass through a track window 16, which is located at the top and bottom ends of the bracket 1.

[0024] In this example, the vertical threaded rod 5 is symmetrically distributed about the center of the bracket 1. The helical directions of the threads on the upper and lower sides of the center of the vertical threaded rod 5 are opposite. The vertical threaded rod 5 is symmetrically threaded with movable plates 6. The above structural design enables the vertical threaded rod 5 to stably drive the symmetrically distributed movable plates 6 to move linearly at the same speed but in opposite directions.

[0025] Both the movable plate 6 and the hot pressing plate 10 are symmetrically distributed about the horizontal center of the bracket 1. The movable plate 6 and the limiting window 7 are slidably connected. The above structural design allows the symmetrically distributed movable plate 6 to slide vertically along the limiting window 7 with the hot pressing plate 10 to adjust the spacing and adapt to different sizes of paper bags.

[0026] A stabilizing rod 8 is fixedly installed on one end of the inner side of the bracket 1. The stabilizing rod 8 passes through the stabilizing hole 9, which is located in the middle of the movable plate 6. The above structural design can further improve the stability of the movable plate 6 when it moves vertically.

[0027] The stabilizer bar 8 fits against the inner wall of the stabilizer hole 9, and the center of the stabilizer bar 8 and the center of the movable plate 6 are on the same vertical plane. The above structural design allows the movable plate 6 to slide along the stabilizer bar 8 with the stabilizer hole 9, thereby improving the overall stability of the movable plate 6.

[0028] The hydraulic rods 11 are symmetrically distributed about the positioning plate 12, and the positioning plate 12 is symmetrically distributed about the horizontal center of the bracket 1. The above structural design enables the hydraulic rods 11 to stably drive the positioning plate 12, and cooperate with the equally symmetrically distributed hot press plates 10 to perform stable hot pressing processing.

[0029] The center of the positioning plate 12 and the center of the hot press plate 10 are on the same vertical plane. The side view length of the positioning plate 12 is greater than the side view length of the hot press plate 10. The above structural design enables the positioning plate 12 and the hot press plate 10 to be stably aligned, and to perform stable hot pressing processing on the handle end and the paper bag.

[0030] Locking bolts 14 are symmetrically installed at the top and bottom of the limiting plate 13. The locking bolts 14 are slidably connected to the track window 16. The limiting plates 13 are symmetrically distributed about the center of the bracket 1. The above structural design allows the symmetrically distributed limiting plates 13 to slide along the track window 16 with the locking bolts 14 to adjust the spacing, thereby limiting the paper bags of different sizes from both sides.

[0031] Working principle: When using, first push... Figure 4 The limiting plate 13, along with the locking bolt 14, slides horizontally along the track window 16 until the spacing of the symmetrically distributed limiting plates 13 is suitable for the paper bag to be processed. Then, the locking nut 15 is rotated to press the top and bottom of the bracket 1, fixing the position of the limiting plate 13.

[0032] Subsequently, based on the inner width of the paper bag to be processed, the symmetrically distributed servo motors 4 are controlled to synchronously drive the symmetrically distributed vertical threaded rods 5 to rotate. Figure 2The vertical threaded rod 5 uses the opposite spiral directions on both sides of its center to drive the symmetrically distributed movable plate 6 to slide away along the limiting window 7. The movable plate 6, with the stabilizing hole 9, slides stably along the stabilizing rod 8 until the spacing of the symmetrically distributed hot press plates 10 is the same as the inner width of the paper bag. The servo motor 4 is then controlled to lock the vertical threaded rod 5. The vertical threaded rod 5 uses the self-locking of the threads to fix the position of the movable plate 6.

[0033] Next, align the end of the handle with the preset installation position inside the opening of the paper bag. Move the opening of the paper bag horizontally towards the hot press plate 10 until the end of the movable plate 6 is inserted inside the opening of the paper bag, and the point where the end of the handle and the inside of the opening of the paper bag are aligned with the center of the hot press plate 10. Start the hot press plate 10 and control the hydraulic rod 11 to extend, pushing the positioning plate 12 to squeeze the paper bag and the end of the handle to be tightly pressed against the hot press plate 10 for hot pressing. The limiting plate 13 limits the paper bag from both sides to prevent displacement. After hot pressing, control the hydraulic rod 11 to shorten and pull out the paper bag. Repeat the above operation to perform continuous hot pressing connection between the paper bag handle and the bag body. This is the working principle of the integrated connection device for the paper bag handle and the bag body.

[0034] 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 device for integrating the handle and body of a paper bag, comprising a bracket (1), characterized in that: A support plate (2) is fixed to the bottom edge of the bracket (1). A base plate (3) is installed on one side of the bracket (1). A servo motor (4) is installed on the top of the base plate (3). A vertical threaded rod (5) is installed at the output end of the servo motor (4). The vertical threaded rod (5) is connected to one end of the movable plate (6). The movable plate (6) passes through the limiting window (7). The limiting window (7) is opened in the middle of the vertical part of the bracket (1). A hot press plate (10) is installed at the end of the movable plate (6). A hydraulic rod (11) is fixed at both the top and bottom ends of the bracket (1). A positioning plate (12) is installed at the end of the hydraulic rod (11). A limiting plate (13) is provided on the other side of the bracket (1). A locking bolt (14) is fixed on the top and bottom surfaces of the limiting plate (13). A locking nut (15) is installed on the locking bolt (14). The locking bolt (14) passes through the track window (16). The track window (16) is opened at the top and bottom ends of the bracket (1).

2. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: The vertical threaded rod (5) is symmetrically distributed about the center of the bracket (1). The spiral directions of the threads on the upper and lower sides of the center of the vertical threaded rod (5) are opposite. A movable plate (6) is symmetrically threaded on the vertical threaded rod (5).

3. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: The movable plate (6) and the hot press plate (10) are symmetrically distributed about the horizontal center of the bracket (1), and the movable plate (6) and the limiting window (7) are slidably connected.

4. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: A stabilizing rod (8) is fixedly installed on one end of the inner side of the bracket (1). The stabilizing rod (8) passes through the stabilizing hole (9), which is located in the middle of the movable plate (6).

5. The integrated connection device for the handle and body of a paper bag according to claim 4, characterized in that: The stabilizer (8) is attached to the inner wall of the stabilizer hole (9), and the center of the stabilizer (8) and the center of the movable plate (6) are on the same vertical plane.

6. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: The hydraulic rods (11) are symmetrically distributed about the positioning plate (12), and the positioning plate (12) is symmetrically distributed about the horizontal center of the bracket (1).

7. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: The center of the positioning plate (12) and the center of the hot press plate (10) are on the same vertical plane, and the side view length of the positioning plate (12) is greater than the side view length of the hot press plate (10).

8. The integrated connection device for the handle and body of a paper bag according to claim 1, characterized in that: The top and bottom ends of the limiting plate (13) are symmetrically equipped with locking bolts (14), and the locking bolts (14) are slidably connected to the track window (16). The limiting plate (13) is symmetrically distributed about the center of the bracket (1).