Positioning and pressing device for sealing a packaging bag
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-11
AI Technical Summary
[0003]实际使用的时候,由于包装袋在封口过程中受到的压力不均匀,从而容易出现封口不严或破损的情况,这不仅影响了产品的密封性,还可能导致产品在运输和储存过程中受到污染,另外,一些装置在定位包装袋时,由于定位机构精度不足或设计不合理,容易导致包装袋在封口过程中发生偏移或扭曲,这不仅影响了封口的美观度,还可能影响产品的整体质量,其次,部分装置的压紧机构和定位机构结构复杂,难以拆卸和更换,导致维护成本高昂且维护过程繁琐
[0013]1、该包装袋封口用定位压紧装置,通过挤压螺纹杆和挤压板的设计,使得压紧力可以灵活调节,以适应不同材质和尺寸的包装袋,同时,限位杆和防脱落板的设计,确保了挤压板在升降过程中的稳定性和准确性,防止了偏移或晃动,这样的设计不仅提高了封口效率,还保证了封口质量,减少了因包装袋移动或变形而导致的封口不良问题。
Smart Images

Figure CN224618159U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pressing device technology, and in particular to a positioning pressing device for sealing packaging bags. Background Technology
[0002] In the packaging industry, especially in sensitive sectors such as food and pharmaceuticals, the sealing quality of packaging bags directly affects product safety, shelf life, and consumer experience.
[0003] In actual use, uneven pressure on the packaging bag during the sealing process can easily lead to incomplete sealing or damage. This not only affects the product's airtightness but may also cause contamination during transportation and storage. Furthermore, some devices, due to insufficient precision or unreasonable design of the positioning mechanism, can cause the packaging bag to shift or twist during the sealing process. This not only affects the aesthetics of the seal but may also impact the overall product quality. Secondly, the pressing and positioning mechanisms of some devices are complex in structure, difficult to disassemble and replace, resulting in high maintenance costs and a cumbersome maintenance process. This not only reduces equipment utilization but may also affect the overall efficiency of the production line.
[0004] Therefore, in order to address this problem, this utility model provides a positioning and pressing device for sealing packaging bags. Utility Model Content
[0005] The purpose of this utility model is to solve the problems in the prior art by proposing a positioning and pressing device for sealing packaging bags.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a positioning and pressing device for sealing packaging bags, comprising a limiting frame, a pressing threaded rod connected to the top of the limiting frame by a thread, a pressing plate provided at the bottom end of the pressing threaded rod, a pressing plate being snapped into the bottom of the pressing plate, the pressing plate including a clamping bracket, threaded sleeves symmetrically arranged on the top of the pressing plate, a limiting plate being movably connected to the top of the threaded sleeves, the limiting plate being located above the clamping bracket, and a locking threaded rod being threadedly connected between the limiting plate and the threaded sleeves.
[0007] Preferably, the top of the limiting frame is symmetrically provided with inlet and outlet slots, which match the limiting plate.
[0008] Preferably, limit rods are symmetrically arranged on both sides of the extrusion plate, and the limit rods are slidably connected to the limit frame.
[0009] Preferably, an anti-detachment plate is fixedly connected to one end of the limiting rod that passes through the limiting frame, and the anti-detachment plate is used for limiting the position.
[0010] Preferably, the inner bottom wall of the limiting frame is provided with a protective pad, which is located below the pressure plate.
[0011] Preferably, the limiting frame is provided with mounting strips on both sides, and the mounting strips are provided with a plurality of mounting grooves at equal intervals on their sides.
[0012] Compared with the prior art, this utility model provides a positioning and pressing device for sealing packaging bags, which has the following advantages:
[0013] 1. The sealing and positioning clamping device for this packaging bag uses a design of a screw-on compression rod and a compression plate to allow for flexible adjustment of the clamping force to accommodate packaging bags of different materials and sizes. At the same time, the design of the limiting rod and the anti-drop plate ensures the stability and accuracy of the compression plate during the lifting process, preventing deviation or shaking. This design not only improves sealing efficiency but also ensures sealing quality and reduces sealing defects caused by packaging bag movement or deformation.
[0014] 2. This packaging bag sealing and positioning clamping device, through its protective pad design, not only protects the packaging bag from damage but also increases the device's cushioning performance, making it suitable for a wider variety of packaging bags. The mounting strip and mounting groove design provide diverse installation methods, allowing the device to be easily installed on a workbench or other supporting structure, meeting the usage requirements under different environments and needs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a positioning and pressing device for sealing packaging bags according to the present invention;
[0016] Figure 2 This is a structural development diagram of a positioning and pressing device for sealing packaging bags proposed in this utility model;
[0017] Figure 3 The present invention provides a structure for a positioning and clamping device for sealing packaging bags. Figure 1 Enlarged view of area A in the middle.
[0018] In the diagram: 1. Limiting frame; 2. Extrusion threaded rod; 3. Extrusion plate; 4. Pressing plate; 401. Card holder; 5. Threaded sleeve; 6. Limiting plate; 7. Locking threaded rod; 8. Inlet / outlet slot; 9. Limiting rod; 10. Anti-fall plate; 11. Mounting strip; 12. Mounting slot; 13. Protective pad. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are 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.
[0021] Reference Figures 1-3 A positioning and pressing device for sealing packaging bags mainly consists of a limiting frame 1. The top of the limiting frame 1 is designed with a threaded connection structure to connect a pressing threaded rod 2. The pressing threaded rod 2 can rise and fall vertically when rotating. Its bottom end is fixedly connected to a pressing plate 3. The bottom of the pressing plate 3 is designed with a snap-fit structure to fix a pressing plate 4. The pressing plate 4 specifically includes a clip 401, which facilitates cooperation with the snap-fit structure at the bottom of the pressing plate 3. In addition, threaded sleeves 5 are symmetrically installed on both sides of the top of the pressing plate 3. The top of each threaded sleeve 5 is movably connected to a limiting plate 6, ensuring that the limiting plate 6 can move up and down within a certain range relative to the threaded sleeve 5. The limiting plate 6 is located directly above the clip 401 to limit the vertical movement of the pressing plate 4. The limiting plate 6 and the threaded sleeve 5 are connected by a locking threaded rod 7. When the locking threaded rod 7 rotates, it can drive the limiting plate 6 to press down on the clip 401, thereby fixing the pressing plate 4. Through the above structure, accurate positioning and stable pressing are achieved when sealing the packaging bag.
[0022] The top of the limiting frame 1 is designed with symmetrical inlet and outlet slots 8. The size and shape of these inlet and outlet slots 8 match the limiting plate 6, allowing the limiting plate 6 to be inserted into the inlet and outlet slots 8 during use, preventing obstruction when the limiting plate 6 moves.
[0023] Among them, limiting rods 9 are symmetrically installed on both sides of the extrusion plate 3. These limiting rods 9 pass through the preset sliding groove of the limiting frame 1, realizing the stable sliding of the extrusion plate 3 during vertical lifting and lowering, preventing it from deviating or shaking, and ensuring the stability and accuracy of the extrusion plate 3 and the pressing plate 4 when pressure is applied.
[0024] Among them, the limiting rod 9 passes through the limiting frame 1 and is fixedly connected to the anti-drop plate 10. This design is intended to prevent the limiting rod 9 from accidentally falling out of the limiting frame 1 during long-term use or under great pressure, thereby enhancing the overall stability and safety of the device.
[0025] A protective pad 13 is carefully installed on the inner bottom wall of the limiting frame 1. This design detail fully considers the stress on the packaging bag during the sealing process. The protective pad 13 is made of a soft and wear-resistant material and is located below the pressure plate 4, in direct contact with the packaging bag. When the pressure plate 4 applies pressure to the packaging bag for sealing, the protective pad 13 can absorb part of the impact force, providing effective cushioning and preventing the packaging bag from being damaged due to excessive pressure. This design not only significantly reduces the risk of packaging bag breakage caused by compression but also effectively protects the integrity of the packaging bag, ensuring the smooth sealing process. At the same time, the wear resistance of the protective pad 13 also ensures its long-term stability and reliability, further improving the service life of the entire sealing device.
[0026] The limiting frame 1 has mounting strips 11 on both sides, and a number of mounting slots 12 are provided at equal intervals on the sides of the mounting strips 11. These mounting slots 12 can be used to fix bolts or other fasteners so that the device can be installed on the workbench or other support structure, providing a variety of installation methods, enhancing the applicability and flexibility of the device, and making it easy to use in different environments and needs.
[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A positioning and clamping device for sealing packaging bags, comprising a limiting frame (1), characterized in that, The top of the limiting frame (1) is connected to a threaded rod (2) by a thread. The bottom end of the threaded rod (2) is provided with a pressing plate (3). The bottom of the pressing plate (3) is clamped with a pressure plate (4). The pressure plate (4) includes a clamping bracket (401). The top of the pressing plate (3) is symmetrically provided with threaded sleeves (5). The top of the threaded sleeves (5) is movably connected to a limiting plate (6). The limiting plate (6) is located above the clamping bracket (401). The limiting plate (6) and the threaded sleeves (5) are connected by a locking threaded rod (7) by a thread.
2. The positioning and pressing device for sealing packaging bags according to claim 1, characterized in that, The top of the limiting frame (1) is symmetrically provided with inlet and outlet slots (8), which are matched with the limiting plate (6).
3. The positioning and pressing device for sealing packaging bags according to claim 1, characterized in that, Limiting rods (9) are symmetrically arranged on both sides of the extrusion plate (3), and the limiting rods (9) are slidably connected to the limiting frame (1).
4. The positioning and pressing device for sealing packaging bags according to claim 3, characterized in that, The limiting rod (9) has an anti-drop plate (10) fixedly connected to one end of the limiting frame (1), and the anti-drop plate (10) is used for limiting the position.
5. The positioning and pressing device for sealing packaging bags according to claim 1, characterized in that, The inner bottom wall of the limiting frame (1) is provided with a protective pad (13), which is located below the pressing plate (4).
6. The positioning and pressing device for sealing packaging bags according to claim 1, characterized in that, The limiting frame (1) is provided with mounting strips (11) on both sides, and the mounting strips (11) are provided with a plurality of mounting grooves (12) at equal intervals on their sides.