A peritoneal dialysis fluid packaging and sealing machine

By using a motor-driven gear and connecting rod assembly to link the clamping plate, stable clamping and precise delivery of peritoneal dialysis fluid packaging bags are achieved. This solves the problems of uneven sealing and poor sealing in existing technologies, improves sealing quality and equipment adaptability, and reduces mold replacement time and costs.

CN224312130UActive Publication Date: 2026-06-02HUAREN PHARMA (RIZHAO) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUAREN PHARMA (RIZHAO) CO LTD
Filing Date
2025-08-12
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

In existing peritoneal dialysis fluid packaging and sealing machines, the clamping force of pneumatic grippers is difficult to control, and the conveyor belt is easily affected by external forces during transport, which can cause deviations in the position of the packaging bag, affecting the sealing quality and airtightness.

Method used

The clamping plate is linked by a gear and connecting rod assembly driven by a motor, and the slider slides on the slide rail to achieve stable clamping and precise delivery of packaging bags. The sealing mold can be quickly changed to meet the sealing needs of packaging bags of different sizes.

Benefits of technology

It improves the stability and accuracy of the sealing process, reduces sealing deviation, enhances sealing quality and equipment versatility, reduces mold changeover time and costs, and increases production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of packaging and sealing technology, and discloses a peritoneal dialysis fluid packaging and sealing machine, including a support plate. A slide rail is fixedly connected to the upper surface of the support plate, and a slider is fixedly connected to the upper surface of the slide rail. A clamping assembly is provided outside the slider, the clamping assembly including a clamping plate. The clamping plate is disposed outside the slider, and a connecting rod two is fixedly connected to the outer wall of the clamping plate. A fixing post one is rotatably connected to one end of the outer wall of the connecting rod two, and a fixing post two is rotatably connected to one end of the connecting rod two. A connecting rod three is rotatably connected to the outer wall of the fixing post one. In this utility model, the clamping plate stably clamps the packaging bag by driving the gears and connecting rods through a motor. Combined with the sliding of the slider on the slide rail, the packaging bag can be accurately transported to the sealing position, improving the stability of clamping and transporting, ensuring accurate positioning of the packaging bag during the sealing process, reducing sealing deviations caused by displacement, and improving sealing quality.
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Description

Technical Field

[0001] This utility model relates to the field of packaging and sealing technology, and in particular to a peritoneal dialysis fluid packaging and sealing machine. Background Technology

[0002] Peritoneal dialysis fluid is a crucial medical product for treating diseases such as kidney failure, and the airtightness of its packaging directly affects the quality and safety of the medication. In the production process of peritoneal dialysis fluid, packaging sealing is a critical step, requiring specialized sealing machines to seal the packaging bags and prevent liquid leakage, contamination, and loss of efficacy. With the increasing demands for packaging quality in the medical industry, higher requirements are placed on the stability, precision, and adaptability of peritoneal dialysis fluid packaging sealing machines. Currently, there is a need to design a machine capable of precise sealing that melts and adheres to the edges of the packaging material.

[0003] In existing technologies, peritoneal dialysis fluid packaging and sealing machines typically use a conveyor belt to transport packaging bags, pneumatic grippers to clamp and position the bags, and then a heating module and a pressure mechanism to complete the sealing. The technical principle is that the continuous operation of the conveyor belt transports the packaging bags, the pneumatic grippers open and close according to a preset program to fix the bag's position, and then the heating module heats up and, under the action of the pressure mechanism, contacts the packaging bag, causing the edges of the packaging material to melt and adhere, thereby achieving a seal.

[0004] However, the gripping force of the pneumatic grippers used in the existing technology is not easy to control, and the conveyor belt is easily affected by external forces during the conveying process, resulting in slight displacement. This causes the packaging bag to deviate in position when sealing, which in turn causes problems such as uneven sealing and poor sealing, affecting the sealing performance and product quality of peritoneal dialysis fluid packaging. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a peritoneal dialysis fluid packaging and sealing machine, which aims to improve the problem that the pneumatic gripper used in the prior art is not easy to control the clamping force, and the packaging bag is prone to slight displacement due to external interference during the conveyor belt transportation process, resulting in positional deviation during sealing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a peritoneal dialysis fluid packaging and sealing machine, comprising a support plate, a slide rail fixedly connected to the upper surface of the support plate, a slider fixedly connected to the upper surface of the slide rail, and a clamping assembly provided outside the slider;

[0007] The clamping assembly includes a clamping plate disposed outside the slider. A connecting rod two is fixedly connected to the outer wall of the clamping plate. A fixing post one is rotatably connected to one end of the outer wall of the connecting rod two. A fixing post two is rotatably connected to one end of the connecting rod two. A connecting rod three is rotatably connected to the outer wall of the fixing post one. A connecting rod one is rotatably connected to the outer wall of the connecting rod three. A rotating shaft is rotatably connected to one end of the connecting rod one. A gear one is fixedly connected to the outer wall of the rotating shaft. An auxiliary connecting plate is fixedly connected to the outer wall of the rotating shaft. A gear two is fixedly connected to the outer wall of the auxiliary connecting plate. Gear one and gear two mesh. A bearing plate is fixedly connected to the outer wall of the slider. A motor is fixedly connected to the upper surface of the bearing plate. The output end of the motor is fixedly connected to one end of the rotating shaft.

[0008] Furthermore, a connecting shaft is fixedly connected to the upper surface of the support plate, a pressure plate is fixedly connected to the upper surface of the connecting shaft, a connecting shaft is fixedly connected to the upper surface of the pressure plate, a spring is fixedly connected to the upper surface of the pressure plate, a pressure plate is fixedly connected to one end of the spring, a positioning block is fixedly connected to the upper surface of the pressure plate, a buckle is fixedly connected to the upper surface of the positioning block, a cam is fitted to the inner wall of the buckle, a connecting shaft is fixedly connected to the upper surface of the cam, and a sealing mold is fixedly connected to the upper surface of the connecting shaft.

[0009] Furthermore, a connecting cylinder is fixedly connected to the upper surface of the connecting shaft, and the connecting cylinder is positioned above the support plate.

[0010] Furthermore, the pressure plate is positioned above the support plate, and a cylinder is fixedly connected to the outer wall of the support plate, with the cylinder output end fixedly connected to the pressure plate.

[0011] Furthermore, the slider is positioned above the support plate, and the cam is attached to the outer wall of the connecting plate.

[0012] Furthermore, the clamping plate is positioned above the support plate.

[0013] Furthermore, the rotating shaft is positioned above the support plate, and the second gear is positioned on one side of the outer wall of the slider.

[0014] Furthermore, the connecting rod is disposed on one side of the outer wall of the slider.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the peritoneal dialysis fluid packaging and sealing machine uses a motor to drive gears, connecting rods and other components to achieve stable clamping of the packaging bag by the clamping plate. With the sliding of the slider on the slide rail, the packaging bag can be accurately transported to the sealing position, which improves the stability of clamping and transport, ensures the accurate position of the packaging bag during the sealing process, reduces sealing deviation caused by displacement, and improves sealing quality.

[0017] 2. In this utility model, a quick-change sealing mold is provided. By pushing the pressure plate two to drive the positioning block to move, the cam can be disengaged from the buckle to complete the mold replacement. The operation is simple and quick, and it can adapt to the sealing requirements of peritoneal dialysis fluid packaging of different specifications. It enhances the versatility and flexibility of the equipment, reduces the time cost of changing the mold, and improves production efficiency. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a peritoneal dialysis fluid packaging and sealing machine proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the support plate structure of a peritoneal dialysis fluid packaging and sealing machine proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the pressure plate part of a peritoneal dialysis fluid packaging and sealing machine proposed in this utility model;

[0021] Figure 4 This is a schematic diagram of the buckle structure of a peritoneal dialysis fluid packaging and sealing machine proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of the clamping plate structure of a peritoneal dialysis fluid packaging and sealing machine proposed in this utility model.

[0023] Legend:

[0024] 1. Support plate; 2. Slide rail; 3. Slider; 4. Bearing plate; 5. Rotating shaft; 6. Gear 1; 7. Connecting rod 1; 8. Connecting rod 2; 9. Connecting rod 3; 10. Fixed column 1; 11. Clamping plate; 12. Motor; 13. Connecting plate; 14. Cylinder; 15. Connecting shaft 1; 16. Connecting cylinder; 17. Pressure plate 1; 18. Connecting shaft 2; 19. Spring; 20. Pressure plate 2; 21. Positioning block; 22. Buckle; 23. Cam; 24. Sealing mold; 25. Connecting shaft 3; 26. Fixed column 2; 27. Gear 2. Detailed Implementation

[0025] 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.

[0026] Reference Figure 1 - Figure 3An embodiment of this utility model is provided: a peritoneal dialysis fluid packaging and sealing machine, including a support plate 1, a basic bearing component, a slide rail 2 fixedly connected to the upper surface of the support plate 1, the slide rail 2 is used to guide the slider 3 to slide stably, the slider 3 is fixedly connected to the upper surface of the slide rail 2 to drive the component to move and convey, and a clamping component is provided on the outside of the slider 3.

[0027] The clamping assembly includes a clamping plate 11 for clamping and fixing the packaging bag. The clamping plate 11 is disposed outside the slider 3. A connecting rod 2 8 is fixedly connected to the outer wall of the clamping plate 11, and the connecting rod 2 8 drives the clamping plate 11 to move. A fixed post 10 is rotatably connected to one end of the outer wall of the connecting rod 2 8, connecting two connecting rods. A fixed post 26 is rotatably connected to one end of the connecting rod 2 8 to support the connecting rod 2 8. A connecting rod 3 9 is rotatably connected to the outer wall of the fixed post 10 to transmit the movement of the connecting rod 1 7. A connecting rod 3 9 is rotatably connected to the outer wall of the connecting rod 1 7. The rotating shaft 5 transmits motion. One end of the connecting rod 7 is rotatably connected to the rotating shaft 5, transmitting power from the motor 12. Gear 6 is fixedly connected to the outer wall of the rotating shaft 5, meshing with gear 27 for transmission. An auxiliary connecting plate 13 is fixedly connected to the outer wall of the rotating shaft 5, mounting gear 27. Gear 27 is also fixedly connected to the outer wall of the auxiliary connecting plate 13, meshing with gear 6 for transmission. Gear 6 meshes with gear 27. A bearing plate 4 is fixedly connected to the outer wall of the slider 3, mounting and fixing the motor 12. The upper surface of the bearing plate 4 is fixedly connected to... A motor 12 is connected to provide clamping power. The output end of the motor 12 is fixedly connected to one end of the rotating shaft 5. A connecting shaft 15 is fixedly connected to the upper surface of the support plate 1, supporting the pressure plate 17. The pressure plate 17 is fixedly connected to the upper surface of the connecting shaft 15 to apply pressure and seal the opening. A connecting shaft 28 is fixedly connected to the upper surface of the pressure plate 17, assisting in the connection of the two pressure plates. A spring 19 is fixedly connected to the upper surface of the pressure plate 17 to assist in the reset of the pressure plate 20. One end of the spring 19 is fixedly connected to the pressure plate 20. The pressure is applied by the pressure plate 17. The upper surface of the pressure plate 20 is fixedly connected to the positioning block 21, which fixes the position of the buckle 22. The upper surface of the positioning block 21 is fixedly connected to the buckle 22, which fixes the cam 23 and the mold. The inner wall of the buckle 22 is fitted with the cam 23, which fixes the mold. The upper surface of the cam 23 is fixedly connected to the connecting shaft 3 25, which connects the cam 23 and the mold. The upper surface of the connecting shaft 3 25 is fixedly connected to the sealing mold 24. The sealing mold 24 and the mold above are pressed together to immediately seal the packaging bag.

[0028] Reference Figure 4 - Figure 5A connecting cylinder 16 is fixedly connected to the upper surface of the connecting shaft 15 to enhance the stability of the pressure plate. The connecting cylinder 16 is located above the support plate 1. The pressure plate 17 is located above the support plate 1. A cylinder 14 is fixedly connected to the outer wall of the support plate 1 to drive the pressure plate 17 to move. The output end of the cylinder 14 is fixedly connected to the pressure plate 17. The slider 3 is located above the support plate 1. The cam 23 is attached to the outer wall of the connecting plate 13. The clamping plate 11 is located above the support plate 1. The rotating shaft 5 is located above the support plate 1. The gear 27 is located on one side of the outer wall of the slider 3. The connecting rod 7 is located on one side of the outer wall of the slider 3.

[0029] Working principle: When the peritoneal dialysis fluid packaging and sealing machine is needed, the motor 12 needs to be started first. The output end of the motor 12 starts the rotating shaft 5. The rotating shaft 5 is on one side of the support plate 4, which will drive the gear 6. The gear 6 will also rotate with the rotation of the rotating shaft 5. When the gear 6 starts, it will drive the connecting rod 7 to move. The connecting rod 8 and the connecting rod 9 will also rotate in sequence with the movement of the connecting rod 7. This will achieve the relative movement of the two clamping plates 11 to clamp and fix the peritoneal dialysis fluid packaging bag. Then, the slider 3 is pushed. The slide rail 2 on the support plate 1 can provide power to the slider 3, so that it can completely seal the packaging bag.

[0030] In addition, by activating cylinder 14, the output end of cylinder 14 drives pressure plate 17 to squeeze, thereby sealing the packaging bag. When the sealing mold 24 needs to be replaced, firstly, by pushing pressure plate 20, pressure plate 20 drives positioning block 21. At the same time, cam 23 connected to sealing mold 24 will fall off from buckle 22. Spring 19 will be squeezed by buckle 22 and bounce back to its original position, so that sealing mold 24 can be pulled out for replacement.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A peritoneal dialysis fluid packaging and sealing machine, comprising a support plate (1), characterized in that: The upper surface of the support plate (1) is fixedly connected to a slide rail (2), the upper surface of the slide rail (2) is fixedly connected to a slider (3), and a clamping component is provided on the outside of the slider (3); The clamping assembly includes a clamping plate (11), which is disposed outside the slider (3). A connecting rod two (8) is fixedly connected to the outer wall of the clamping plate (11). A fixing post one (10) is rotatably connected to one end of the outer wall of the connecting rod two (8). A fixing post two (26) is rotatably connected to one end of the connecting rod two (8). A connecting rod three (9) is rotatably connected to the outer wall of the fixing post one (10). A connecting rod one (7) is rotatably connected to the outer wall of the connecting rod three (9). One end of the connecting rod one (7) is rotatably connected to the connecting rod one (7). A rotating shaft (5) is connected, and a gear 1 (6) is fixedly connected to the outer wall of the rotating shaft (5). An auxiliary connecting plate (13) is fixedly connected to the outer wall of the rotating shaft (5). A gear 2 (27) is fixedly connected to the outer wall of the auxiliary connecting plate (13). The gear 1 (6) meshes with the gear 2 (27). A bearing plate (4) is fixedly connected to the outer wall of the slider (3). A motor (12) is fixedly connected to the upper surface of the bearing plate (4). The output end of the motor (12) is fixedly connected to one end of the rotating shaft (5).

2. The peritoneal dialysis fluid packaging and sealing machine according to claim 1, characterized in that: The upper surface of the support plate (1) is fixedly connected to a connecting shaft one (15), the upper surface of the connecting shaft one (15) is fixedly connected to a pressure plate one (17), the upper surface of the pressure plate one (17) is fixedly connected to a connecting shaft two (18), the upper surface of the pressure plate one (17) is fixedly connected to a spring (19), one end of the spring (19) is fixedly connected to a pressure plate two (20), the upper surface of the pressure plate two (20) is fixedly connected to a positioning block (21), the upper surface of the positioning block (21) is fixedly connected to a buckle (22), the inner wall of the buckle (22) is fitted with a cam (23), the upper surface of the cam (23) is fixedly connected to a connecting shaft three (25), and the upper surface of the connecting shaft three (25) is fixedly connected to a sealing mold (24).

3. The peritoneal dialysis fluid packaging and sealing machine according to claim 2, characterized in that; A connecting cylinder (16) is fixedly connected to the upper surface of the connecting shaft (15), and the connecting cylinder (16) is positioned above the support plate (1).

4. The peritoneal dialysis fluid packaging and sealing machine according to claim 2, characterized in that: The pressure plate (17) is positioned above the support plate (1), and a cylinder (14) is fixedly connected to the outer wall of the support plate (1). The output end of the cylinder (14) is fixedly connected to the pressure plate (17).

5. A peritoneal dialysis fluid packaging and sealing machine according to claim 2, characterized in that: The slider (3) is positioned above the support plate (1), and the cam (23) is attached to the outer wall of the auxiliary connecting plate (13).

6. The peritoneal dialysis fluid packaging and sealing machine according to claim 4, characterized in that: The clamp (11) is positioned above the support plate (1).

7. The peritoneal dialysis fluid packaging and sealing machine according to claim 1, characterized in that: The rotating shaft (5) is located above the support plate (1), and the gear (27) is located on one side of the outer wall of the slider (3).

8. A peritoneal dialysis fluid packaging and sealing machine according to claim 4, characterized in that: The connecting rod (7) is located on one side of the outer wall of the slider (3).