Sealing press-fit structure with elastic buffer piece

By designing a sealing and pressing structure with elastic cushioning, the problems of poor adaptability and easy damage of packaging bag sealing and pressing structures were solved, achieving flexible pressing and effective sealing, and improving product qualification rate and production efficiency.

CN224171318UActive Publication Date: 2026-04-28SHANGHAO PACKAGING MASCH (ZHENJIANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAO PACKAGING MASCH (ZHENJIANG) CO LTD
Filing Date
2025-04-28
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing packaging bag sealing and pressing structures are difficult to adapt to packaging bags of different shapes and materials, which can easily lead to poor sealing or packaging bag breakage. In addition, traditional structures are easily damaged, increasing maintenance costs and reducing production efficiency.

Method used

A sealing and pressing structure with an elastic buffer element was designed, including an elastic pressing mechanism and an adjustment structure. The elastic buffer element enables flexible pressing, and the pressing force is adjusted by a driving device and a receiving component to adapt to the needs of different packaging bags.

Benefits of technology

It achieves flexible pressing of packaging bags, avoiding rupture and deformation caused by excessive pressure, improving product qualification rate, and reducing equipment maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a seal press-fit structure with an elastic buffer piece, which comprises a mounting frame and guide rails in bolted connection with two inner side walls of the mounting frame, an elastic press-fit mechanism is arranged in the mounting frame close to the middle position, and the elastic press-fit mechanism is in sliding connection with the guide rails. And a driving device capable of driving the elastic pressing mechanism to move up and down on the guide rail is in bolted connection with the position, close to the top, in the mounting frame, and the driving device is movably connected to the elastic pressing mechanism. According to the utility model, through the arrangement of the elastic buffer component, the flexible press fit of the packaging container is realized, the breakage and deformation of the container caused by overlarge pressure are avoided, the qualified rate of products is improved, and the adjusting structure is arranged on the bearing component arranged at the bottom in a matched manner, so that the bearing component can be matched with the press fit mechanism to realize press fit with different strengths; therefore, effective press-fit processing of packaging bags with different requirements is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of packaging equipment application technology, and in particular to a sealing and pressing structure with an elastic buffer. Background Technology

[0002] The sealing and pressing structure of packaging bags is a key part of packaging equipment used to achieve the sealing of packaging bags. Its design directly affects the sealing quality and packaging effect. Common sealing and pressing structures include heat sealing, pulse sealing and ultrasonic sealing, and each structure has different working principles, applicable scenarios, advantages and disadvantages.

[0003] Existing packaging bag sealing and pressing structures have several drawbacks. First, the rigid pressing structure is difficult to adapt to packaging bags of different shapes and materials when pressure is applied, which can easily lead to poor sealing at the opening. Second, excessive pressure may cause the packaging bag to break or deform, affecting the appearance and quality of the product. In addition, traditional sealing and pressing structures lack cushioning protection during long-term use, and their components are easily damaged by frequent impacts, increasing equipment maintenance costs and downtime, and reducing production efficiency. Therefore, this utility model proposes a sealing and pressing structure with an elastic cushioning element. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a sealing and pressing structure with an elastic buffer component. By setting the elastic buffer component, flexible pressing of the packaging container is achieved, avoiding container rupture and deformation caused by excessive pressure, and improving the product qualification rate. An adjustment structure is set on the receiving component set at the bottom, so that it can cooperate with the pressing mechanism to achieve pressing with different forces, thereby ensuring effective pressing processing of packaging bags with different needs.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a sealing and pressing structure with an elastic buffer is provided, including a mounting frame and guide rails bolted to the two inner side walls of the mounting frame. An elastic pressing mechanism is provided inside the mounting frame near the middle position, and the elastic pressing mechanism is slidably connected to the guide rail.

[0006] The mounting frame is bolted to a drive device that can drive the elastic pressing mechanism to move up and down on the guide rail, and the drive device is movably connected to the elastic pressing mechanism.

[0007] The mounting frame has an adjustable and fixed support component located near the bottom to work with the elastic pressing mechanism to seal the packaging bag.

[0008] The present invention is further configured such that: the inner side wall of the mounting frame is symmetrically bolted with connecting side blocks near the top position, the top of the mounting frame is bolted to the connecting top block, and the connecting side blocks and the connecting top block are triangularly positioned.

[0009] The above technical solution utilizes the triangularly positioned connecting side blocks and connecting top blocks to fix the entire mounting frame in place, ensuring its stability over a long period during use and preventing damage to the packaging bag seal caused by shaking.

[0010] The present invention is further configured as follows: the elastic pressing mechanism includes a double-layer pressing frame, with slide seats symmetrically bolted to both ends of the pressing frame; multiple slide rods are arranged through the interior of the pressing frame; pressing heads are fixedly connected to the bottom of the multiple slide rods; two springs are wrapped around the outer walls of the multiple slide rods; baffles are fixedly connected to the outer walls of the multiple slide rods near the middle position, and the baffles are located inside the double-layer pressing frame; limit plates are fixedly connected to the tops of the multiple slide rods; a connecting frame is fixedly connected to the top center of the pressing frame; the top of the connecting frame is U-shaped, and slide shafts are symmetrically fixedly connected to its inner walls.

[0011] The above technical solution facilitates the stable sliding of the pressing frame on the guide rail via the slide block. The multiple springs installed on the slide rod allow the bottom pressing head to be compressed and buffered by the slide rod when pressing the packaging bag, thereby preventing the pressing head from damaging the packaging bag seal in conjunction with the bottom receiving component during pressing. Furthermore, the sliding shaft on the connecting frame allows for up-and-down movement on the track structure.

[0012] The present invention is further configured such that: one end of each of the multiple sets of springs is respectively pressed against the top of the pressing head and the top of the baffle, while the other end of the springs is respectively pressed against the bottom of the pressing frame and the inner top of the pressing frame.

[0013] The above technical solution utilizes multiple sets of springs to cushion the bottom pressing head when pressing the packaging bag, thereby preventing damage to the packaging bag seal.

[0014] The present invention is further configured such that: both ends of the pressing frame are slidably connected to the guide rails on both sides via sliding blocks.

[0015] The above technical solution facilitates the pressing frame to slide up and down on the guide rail via the slide block when it is driven, thus enabling stable pressing motion.

[0016] The present invention is further configured such that: the driving device includes a mounting plate installed inside the mounting frame, a motor is bolted to the top center of the mounting plate, a rotating block is fixedly connected to the end face of the drive shaft of the motor, a track structure is fixedly connected to the outer wall of the rotating block, and the connecting frame is smoothly attached to the surface of the track structure through a sliding shaft.

[0017] With the above technical solution, the motor is started, and its output shaft drives the end face rotating block to rotate. This allows the external trajectory structure to make the sliding shaft that is fitted to it move up and down along the trajectory structure. This causes the connecting frame to drive the bottom pressing frame to slide on the guide rail, thereby completing the pressing operation of the packaging bag.

[0018] The present invention is further configured such that: the receiving component includes a receiving frame, the receiving frame is slidably connected to two guide rails by a slider bolted to both ends of the receiving frame, a buffer pad is fixedly connected to the top of the receiving frame, and an adjusting screw is rotatably connected to the bottom of the receiving frame. The adjusting screw is threaded through the bottom of the mounting frame, and fixing nuts threaded on the outer wall of the adjusting screw are pressed against both sides of the through position of the mounting frame.

[0019] The above technical solution utilizes an adjusting screw that rotates at the bottom of the mounting frame, causing the top support frame to slide up and down on the guide rail via a slider. This allows for proper position adjustment in conjunction with the compressive elastic pressing mechanism. After adjustment, two fixing nuts can be used to secure the adjusting screw to its position, facilitating the sealing and pressing of the packaging bag.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. The sealing and pressing structure with elastic buffer component proposed in this utility model achieves flexible pressing of the packaging container by setting the elastic buffer component, avoiding container rupture and deformation caused by excessive pressure, and improving the product qualification rate.

[0022] 2. The sealing and pressing structure with elastic buffer proposed in this utility model has an adjustment structure on the receiving component set at the bottom, which can cooperate with the pressing mechanism to achieve pressing with different forces, thereby ensuring effective pressing processing of packaging bags with different needs. Attached Figure Description

[0023] Figure 1 This is a first structural diagram of a sealing and pressing structure with an elastic buffer element according to the present invention;

[0024] Figure 2 This is a second structural diagram of a sealing and pressing structure with an elastic buffer element according to the present invention;

[0025] Figure 3 This is a structural diagram of the elastic pressing mechanism in a sealing pressing structure with an elastic buffer element according to this utility model;

[0026] Figure 4 This is a structural diagram of the driving device in a sealing and pressing structure with an elastic buffer element according to this utility model;

[0027] Figure 5 This is a structural diagram of a sealing and pressing structure for a watch pavilion with an elastic buffer, according to the present invention.

[0028] In the diagram: 1. Mounting frame; 11. Connecting side block; 12. Connecting top block; 2. Guide rail; 3. Elastic pressing mechanism; 31. Pressing frame; 32. Slide seat; 33. Slide rod; 34. Pressing head; 35. Spring; 36. Baffle; 37. Limiting plate; 38. Connecting frame; 39. Slide shaft; 4. Drive device; 41. Mounting plate; 42. Motor; 43. Rotating block; 44. Track structure; 5. Receiving component; 51. Receiving frame; 52. Slider; 53. Buffer pad; 54. Adjusting screw; 55. Fixing nut. Detailed Implementation

[0029] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0030] like Figures 1-3As shown, a sealing and pressing structure with elastic buffers includes a mounting frame 1 and guide rails 2 bolted to the two inner side walls of the mounting frame 1. Connecting side blocks 11 are symmetrically bolted to the inner side walls of the mounting frame 1 near the top. The top of the mounting frame 1 is bolted to a connecting top block 12. The connecting side blocks 11 and the connecting top block 12 are triangularly positioned, which allows for the fixed installation of the entire mounting frame 1, ensuring its stability over a long period during use and preventing damage to the packaging bag seal caused by shaking. An elastic pressing mechanism 3 is located near the center of the interior and is slidably connected to the guide rail 2. The elastic pressing mechanism 3 includes a double-layered pressing frame 31. Slide seats 32 are symmetrically bolted to both ends of the pressing frame 31. Both ends of the pressing frame 31 are slidably connected to the guide rails 2 on both sides via the slide seats 32, allowing the pressing frame 31 to slide up and down on the guide rails 2 via the slide seats 32 when driven, ensuring stable pressing motion. Multiple slide rods 33 are arranged through the interior of the pressing frame 31. A pressing head 34 is fixedly connected to the bottom of each slide rod 33. The outer surfaces of the multiple slide rods 33... Each wall is wrapped with two springs 35. One end of each spring 35 is pressed against the top of the pressing head 34 and the top of the baffle 36, while the other end of each spring 35 is pressed against the bottom of the pressing frame 31 and the inner top of the pressing frame 31. The multiple springs 35 can buffer the pressing head 34 at the bottom when pressing the packaging bag, thereby preventing damage to the sealing area of ​​the packaging bag. Each of the multiple slide rods 33 has a baffle 36 fixedly connected to its outer wall near the middle, and the baffle 36 is located inside the double-layer pressing frame 31. Each of the multiple slide rods 33 has a limit plate 37 fixedly connected to its top. A connecting frame 38 is fixedly connected to the top center of the pressing frame 31. The top of the connecting frame 38 is U-shaped, and its inner wall is symmetrically fixedly connected with sliding shafts 39, which facilitates the pressing frame 31 to slide stably on the guide rail 2 via the sliding seat 32. The multiple springs 35 set on the sliding rod 33 enable the bottom pressing head 34 to be compressed and buffered by the sliding rod 33 when pressing the packaging bag seal, thereby preventing the pressing head 34 from crushing the packaging bag seal in conjunction with the bottom receiving component 5 during pressing. The sliding shaft 39 on the connecting frame 38 can move up and down on the track structure 44.

[0031] like Figure 4As shown, a drive device 4 is bolted to the inside of the mounting frame 1 near the top position, which can drive the elastic pressing mechanism 3 to move up and down on the guide rail 2. The drive device 4 is movably connected to the elastic pressing mechanism 3. The drive device 4 includes a mounting plate 41 installed inside the mounting frame 1. A motor 42 is bolted to the top center of the mounting plate 41. A rotating block 43 is fixedly connected to the end face of the drive shaft of the motor 42. A track structure 44 is fixedly connected to the outer wall of the rotating block 43. The connecting frame 38 is smoothly attached to the surface of the track structure 44 through the sliding shaft 39. When the motor 42 is started, its output shaft drives the end face rotating block 43 to rotate, so that the external track structure 44 can make the attached sliding shaft 39 move up and down along the track structure 44. This causes the connecting frame 38 to drive the bottom pressing frame 31 to slide on the guide rail 2, thereby completing the pressing operation of the packaging bag.

[0032] like Figure 5 As shown, an adjustable and fixed receiving component 5 is provided inside the mounting frame 1 near the bottom to cooperate with the elastic pressing mechanism 3 to achieve sealing of the packaging bag. The receiving component 5 includes a receiving frame 51, which is slidably connected to two guide rails 2 via sliders 52 bolted to both ends. A buffer pad 53 is fixedly connected to the top of the receiving frame 51, and an adjusting screw 54 is rotatably connected to the bottom of the receiving frame 51. The adjusting screw 54 is threaded through the bottom of the mounting frame 1, and fixing nuts 55 threaded to the outer wall of the adjusting screw 54 are tightened on both sides of the through-position of the mounting frame 1. By using the adjusting screw 54 threaded to rotate at the bottom of the mounting frame 1, the receiving frame 51 at the top is driven to slide up and down on the guide rails 2 via the sliders 52, thereby cooperating with the elastic pressing mechanism 3 to perform reasonable position adjustment. After adjustment, the two fixing nuts 55 can be used to fix the position of the adjusted screw 54, thus facilitating the operation when sealing the packaging bag.

[0033] In use, this utility model first adjusts the bottom adjusting screw 54 according to the pressing requirements of the packaging bag, causing the top receiving frame 51 to slide up and down on the guide rail 2 via the slider 52. This allows for proper position adjustment in conjunction with the elastic pressing mechanism 3. After adjustment, two fixing nuts 55 can be used to fix the position of the adjusted screw 54. Then, the motor 42 is started, and its output shaft drives the end face rotating block 43 to rotate. This allows the external trajectory structure 44 to allow the fitted sliding shaft 39 to move up and down along the trajectory structure 44. This causes the connecting frame 38 to drive the bottom pressing frame 31 to slide on the guide rail 2, causing multiple internal sliding rods 33 to drive the pressing head 34 to press and seal the packaging bag. At the same time, the multiple springs 35 provide cushioning during pressing, preventing damage to the seal.

[0034] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sealing and pressing structure with an elastic buffer, comprising a mounting frame (1) and guide rails (2) bolted to the two inner side walls of the mounting frame (1), characterized in that: An elastic pressing mechanism (3) is provided inside the mounting frame (1) near the middle position, and the elastic pressing mechanism (3) is slidably connected to the guide rail (2). The mounting frame (1) is bolted to a drive device (4) that drives the elastic pressing mechanism (3) to move up and down on the guide rail (2) near the top position, and the drive device (4) is movably connected to the elastic pressing mechanism (3). The mounting frame (1) has an adjustable and fixed receiving component (5) located near the bottom inside to cooperate with the elastic pressing mechanism (3) to achieve sealing of the packaging bag.

2. The sealing and pressing structure with an elastic buffer element according to claim 1, characterized in that: The inner side wall of the mounting frame (1) is symmetrically bolted with connecting side blocks (11) near the top position, and the top of the mounting frame (1) is bolted to connecting top block (12). The connecting side blocks (11) and connecting top block (12) are triangularly positioned.

3. The sealing and pressing structure with an elastic buffer element according to claim 1, characterized in that: The elastic pressing mechanism (3) includes a double-layer pressing frame (31). The two ends of the pressing frame (31) are symmetrically bolted with slide seats (32). Multiple slide rods (33) are arranged through the inside of the pressing frame (31). Pressing heads (34) are fixedly connected to the bottom of the multiple slide rods (33). Two springs (35) are wrapped around the outer wall of the multiple slide rods (33). Baffles (36) are fixedly connected to the outer wall of the multiple slide rods (33) near the middle position. The baffles (36) are located inside the double-layer pressing frame (31). Limiting plates (37) are fixedly connected to the top of the multiple slide rods (33). A connecting frame (38) is fixedly connected to the top center of the pressing frame (31). The top of the connecting frame (38) is U-shaped, and slide shafts (39) are symmetrically fixedly connected to its inner wall.

4. The sealing and pressing structure with an elastic buffer element according to claim 3, characterized in that: One end of each of the multiple sets of springs (35) is pressed against the top of the pressing head (34) and the top of the baffle (36), while the other end of the springs (35) is pressed against the bottom of the pressing frame (31) and the inner top of the pressing frame (31).

5. The sealing and pressing structure with an elastic buffer element according to claim 3, characterized in that: The two ends of the pressing frame (31) are slidably connected to the guide rails (2) on both sides via slide blocks (32).

6. The sealing and pressing structure with an elastic buffer element according to claim 3, characterized in that: The drive device (4) includes a mounting plate (41) installed inside the mounting frame (1). A motor (42) is bolted to the top center of the mounting plate (41). A rotating block (43) is fixedly connected to the end face of the drive shaft of the motor (42). A track structure (44) is fixedly connected to the outer wall of the rotating block (43). The connecting frame (38) is smoothly attached to the surface of the track structure (44) through a sliding shaft (39).

7. The sealing and pressing structure with an elastic buffer element according to claim 1, characterized in that: The receiving component (5) includes a receiving frame (51), which is slidably connected to two guide rails (2) by a slider (52) bolted to both ends. A buffer pad (53) is fixedly connected to the top of the receiving frame (51), and an adjusting screw (54) is rotatably connected to the bottom of the receiving frame (51). The adjusting screw (54) is threaded through the bottom of the mounting frame (1), and fixing nuts (55) threaded on the outer wall of the adjusting screw (54) are tightened on both sides of the through position of the mounting frame (1).