Medical cartridge packaging mechanism

By using an eccentrically positioned driven wheel to clamp the packaging film in conjunction with the driving wheel, the problems of unstable conveying and poor material adaptability are solved, achieving stability and precise heat sealing of medical cartridge packaging, and improving the flexibility and ease of operation of the equipment.

CN223999917UActive Publication Date: 2026-03-17ZIBO JINJIAN MEDICAL EQUIP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-02-11
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing technologies, the conveying of packaging films is unstable, prone to slipping or wrinkling, and difficult to adapt to packaging films of different thicknesses and materials, affecting heat sealing accuracy and equipment flexibility.

Method used

The eccentrically positioned driven wheel works in conjunction with the driving wheel to form an adjustable clamping structure. Combined with the design of limit bolts and tension springs, it enables stable delivery and precise heat sealing of the packaging film.

Benefits of technology

It improves the stability of packaging film delivery and heat sealing accuracy, enhances the versatility and ease of operation of the equipment, and ensures the integrity and consistency of packaging.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223999917U_ABST
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Abstract

The utility model relates to the technical field of medical equipment, in particular to a medical cartridge packaging mechanism which comprises a base. The heat sealing assembly is installed on the base and used for conducting heat sealing on the two opposite sides of the packaging film to form a barrel-shaped packaging structure so as to contain the medical cartridge placed in the barrel-shaped packaging structure; the feeding assemblies are installed on the base, arranged on the two sides, in the feeding direction, of the heat sealing assembly correspondingly and used for conveying the packaging films forming the cylindrical packaging structure; the feeding assembly comprises a frame fixedly connected with the base; the driving wheel is rotatably arranged on the frame; the driven wheel is rotatably arranged on the frame; the two opposite sides of the packaging film are clamped between the driving wheel and the driven wheel. An adjustable feeding assembly is formed through the eccentrically-arranged driven wheel, stable conveying and precise heat sealing of a packaging film are achieved, and the consistency and integrity of medical cartridge packaging are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of medical equipment technology, specifically to a medical cartridge packaging mechanism. Background Technology

[0002] Medical cartridges, as a common medical consumable, require packaging that meets stringent requirements for sterility, moisture resistance, and contamination prevention. Currently, flexible films with heat sealing are commonly used to wrap medical cartridges, forming a sealed cylindrical packaging structure. In this packaging process, the stable and precise delivery of the packaging film is a crucial prerequisite for ensuring accurate heat sealing and reliable sealing quality.

[0003] In existing technologies, a common solution for conveying packaging film is to use one or more pairs of mutually pressing rollers to clamp and pull the film material. However, this approach has several limitations in practical applications: First, due to the inherent thickness tolerances, material elasticity differences, and slight tension fluctuations that may occur on the production line, a fixed roller gap cannot consistently provide a stable and uniform clamping force, easily leading to slippage or wrinkles in the film material during conveying, affecting the accuracy of subsequent heat sealing processes. Second, when adapting to packaging films of different thicknesses or materials, cumbersome mechanical adjustments to the feeding components are often required, such as adjusting the overall axle position or replacing rollers of different sizes. This process is time-consuming and difficult to control precisely, reducing the equipment's production flexibility and efficiency. Furthermore, in high-speed or continuous operations, a simple roller-pair pressing structure may generate excessive local stress on the film material, posing a risk of damaging the film surface or affecting its sealing performance. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model provides a medical cartridge packaging mechanism, which forms an adjustable feeding component through an eccentrically arranged driven wheel, realizing stable delivery and precise heat sealing of the packaging film, and ensuring the consistency and integrity of the medical cartridge packaging.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] Medical cartridge packaging mechanism, including:

[0007] Base;

[0008] A heat-sealing assembly, mounted on a base, is used to heat-seal opposite sides of the packaging film to form a cylindrical packaging structure to accommodate a medical cartridge placed inside the cylindrical packaging structure.

[0009] The feeding assembly is mounted on the base and is respectively set on both sides of the heat sealing assembly along the feeding direction, for conveying the packaging film that constitutes the cylindrical packaging structure;

[0010] The feeding assembly includes:

[0011] The frame is fixedly connected to the base;

[0012] The drive wheel is rotatably mounted on the frame;

[0013] Driven wheel, rotatably mounted on the frame;

[0014] The opposite sides of the packaging film are clamped between the driving wheel and the driven wheel.

[0015] Furthermore, the feeding assembly also includes:

[0016] The drive shaft is rotatably mounted on the frame, and the drive wheel is mounted on the lower end of the drive shaft;

[0017] The driven shaft is rotatably mounted on the frame, and the driven wheel is mounted on the lower end of the driven shaft, with the rotation center of the driven wheel being eccentrically set relative to the rotation center of the driven shaft.

[0018] Furthermore, the driven shaft includes:

[0019] The first shaft is rotatably mounted on the frame;

[0020] The third shaft is eccentrically located at the lower end of the first shaft, and the driven wheel is rotatably mounted on the third shaft.

[0021] Furthermore, limit bolts are provided on the first shaft;

[0022] The frame is threaded with adjusting bolts, and the limiting bolts can abut against the inner end of the adjusting bolts.

[0023] Furthermore, a second shaft is provided at the upper end of the first shaft, and a horizontal plate is fixedly provided on the second shaft.

[0024] Furthermore, movable bolts are provided on the horizontal plate, fixed bolts are provided on the frame, and tension springs are provided between the movable bolts and the fixed bolts.

[0025] Furthermore, the frame is fixedly connected to the base via support columns.

[0026] Furthermore, the heat-sealing assembly includes two opposing heating plates, with opposite sides of the packaging film located between the heating plates.

[0027] The beneficial effects of this utility model are:

[0028] (1) By cooperating with the driven wheel set eccentrically to clamp the two sides of the packaging film, an adjustable contact state is formed, which effectively prevents the packaging film from sliding, shifting or wrinkling during the transportation process, ensuring the alignment accuracy and production continuity of subsequent heat-forming, and significantly improving the stability and reliability of packaging production.

[0029] (2) With the help of the synergistic effect of the adjusting bolt and the limiting bolt, the position of the driven wheel can be finely adjusted, so as to flexibly adapt to packaging films of different thicknesses or materials. The structure is simple and easy to adjust, and the clamping force can be quickly optimized, which enhances the versatility and process adaptability of the equipment.

[0030] (3) By connecting the movable bolt and the fixed bolt with a tension spring, the driven wheel provides a continuous and flexible clamping force on the packaging film, while the driving wheel and the driven wheel have an opening and closing function, which facilitates the rapid loading of the packaging film and improves the ease of operation. Attached Figure Description

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Figure 1 This is a schematic diagram of the structure of this utility model;

[0033] Figure 2 This is a structural diagram of the feeding assembly. Figure 1 ;

[0034] Figure 3 This is a structural diagram of the feeding assembly. Figure 2 ;

[0035] Figure 4 This is a structural schematic diagram of the driven shaft;

[0036] Figure 5 yes Figure 1 A magnified view of a portion of location A in the middle.

[0037] In the picture:

[0038] 1. Base, 2. Feeding assembly, 3. Heat sealing assembly, 4. Medical cartridge, 5. Packaging film;

[0039] 201. Frame, 202. Support column, 203. Drive wheel, 204. Drive shaft, 205. Driven wheel, 206. Driven shaft, 207. Limit bolt, 208. Adjusting bolt, 209. Cross plate, 210. Movable bolt, 211. Tension spring, 212. Fixing bolt;

[0040] 2061. First axis; 2062. Second axis; 2063. Third axis;

[0041] 301. Heating plate. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings.

[0043] like Figure 1As shown, the specific structure of the medical cartridge packaging mechanism includes a base 1. A heat-sealing assembly 3 is mounted on the base 1 and is used to heat-seal the opposite sides of the packaging film 5 to form a cylindrical packaging structure to accommodate the medical cartridge 4 placed inside the cylindrical packaging structure. A feeding assembly 2 is mounted on the base 1 and is respectively arranged on both sides of the heat-sealing assembly 3 along the feeding direction, for conveying the packaging film 5 that constitutes the cylindrical packaging structure.

[0044] like Figure 2 , 3 As shown, the specific structure of the feeding assembly 2 includes a frame 201, which is fixedly connected to the base 1. In a specific embodiment, the frame 201 is fixedly connected to the base 1 via a support column 202. The drive wheel 203 is rotatably mounted on the frame 201. A linkage mechanism for driving the drive wheel 203 is provided inside the support column 202. The linkage mechanism can adopt existing technologies such as bevel gear pairs. The driven wheel 205 is rotatably mounted on the frame 201. The opposite sides of the packaging film 5 are clamped between the drive wheel 203 and the driven wheel 205. The drive shaft 204 is rotatably mounted on the frame 201, and the drive wheel 203 is mounted on the lower end of the drive shaft 204. The driven shaft 206 is rotatably mounted on the frame 201, and the driven wheel 205 is mounted on the lower end of the driven shaft 206, with the rotation center of the driven wheel 205 eccentrically positioned relative to the rotation center of the driven shaft 206. The active wheel 203 and the eccentrically positioned driven wheel 205 work together to clamp the two sides of the packaging film 5, forming an adjustable contact state. This effectively prevents the packaging film 5 from sliding, shifting, or wrinkling during transport, ensuring the alignment accuracy and production continuity of subsequent heat-sealing, and significantly improving the stability and reliability of packaging production.

[0045] like Figure 4 As shown in the specific embodiment, the driven shaft 206 includes a first shaft body 2061, which is rotatably mounted on the frame 201 via bearings. A third shaft body 2063 is eccentrically disposed at the lower end of the first shaft body 2061, and the driven wheel 205 is rotatably disposed on the third shaft body 2063, thereby causing the rotation center of the driven wheel 205 to be eccentrically disposed relative to the rotation center of the driven shaft 206.

[0046] A limiting bolt 207 is provided on the first shaft 2061. An adjusting bolt 208 is threaded onto the frame 201, and the limiting bolt 207 can abut against the inner end of the adjusting bolt 208. A second shaft 2062 is provided at the upper end of the first shaft 2061, and a horizontal plate 209 is fixedly provided on the second shaft 2062. An operating handle is provided at the outer end of the horizontal plate 209. A movable bolt 210 is provided on the horizontal plate 209, and a fixed bolt 212 is provided on the frame 201. A tension spring 211 is provided between the movable bolt 210 and the fixed bolt 212. With the synergistic effect of the adjusting bolt 208 and the limiting bolt 207, the position of the driven wheel 205 can be finely adjusted by adjusting the limiting bolt 207, thereby flexibly adapting to packaging films of different thicknesses or materials. The structure is simple, the adjustment is convenient, and the clamping force can be quickly optimized, enhancing the versatility and process adaptability of the equipment. Furthermore, the movable bolt 210 and the fixed bolt 212 are connected by a tension spring 211, so that the driven wheel 205 provides a continuous and flexible clamping force on the packaging film 5. By rotating the cross plate 209, the driving wheel 203 and the driven wheel 205 can be opened and closed, which facilitates the rapid loading of the packaging film and improves the ease of operation.

[0047] like Figure 5 As shown, the heat-sealing assembly 3 includes two oppositely arranged heating plates 301, each containing a heating rod for heating. The packaging film 5 is located between the opposite sides of the heating plates 301.

[0048] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A medical cassette packaging mechanism, characterized by, The medical card case packaging mechanism comprises a base (1), a heat sealing assembly (3) mounted on the base (1) and used for heat sealing opposite sides of a packaging film (5) and forming a cylindrical packaging structure for accommodating a medical card case (4) placed in the cylindrical packaging structure, and a feeding assembly (2) mounted on the base (1) and arranged on both sides of the heat sealing assembly (3) along a feeding direction for feeding the packaging film (5) constituting the cylindrical packaging structure. The feeding assembly (2) comprises a frame (201) fixedly connected with the base (1), a driving wheel (203) rotatably arranged on the frame (201), and a driven wheel (205) rotatably arranged on the frame (201), and the opposite sides of the packaging film (5) are clamped between the driving wheel (203) and the driven wheel (205).

2. The medical card case packaging mechanism according to claim 1, wherein the feeding assembly (2) further comprises a driving shaft (204) rotatably arranged on the frame (201), and the driving wheel (203) is mounted on a lower end of the driving shaft (204); and a driven shaft (206) rotatably arranged on the frame (201), and the driven wheel (205) is mounted on a lower end of the driven shaft (206), and a rotation center of the driven wheel (205) is eccentrically arranged relative to a rotation center of the driven shaft (206).

3. The medical card case packaging mechanism according to claim 2, wherein the driven shaft (206) comprises a first shaft body (2061) rotatably arranged on the frame (201), and a third shaft body (2063) eccentrically arranged on a lower end of the first shaft body (2061), and the driven wheel (205) is rotatably arranged on the third shaft body (2063).

4. The medical card case packaging mechanism according to claim 3, wherein a limiting bolt (207) is arranged on the first shaft body (2061); and an adjusting bolt (208) is threadedly connected to the frame (201), and the limiting bolt (207) can abut against an inner end of the adjusting bolt (208).

5. The medical card case packaging mechanism according to claim 3, wherein a second shaft body (2062) is arranged on an upper end of the first shaft body (2061), and a cross plate (209) is fixedly arranged on the second shaft body (2062).

6. The medical card case packaging mechanism according to claim 5, wherein a movable bolt (210) is arranged on the cross plate (209), a fixed bolt (212) is arranged on the frame (201), and a tension spring (211) is arranged between the movable bolt (210) and the fixed bolt (212).

7. The medical card case packaging mechanism according to claim 1, wherein the frame (201) is fixedly connected with the base (1) through a supporting column (202).

8. The medical card case packaging mechanism according to claim 1, wherein ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The heat sealing assembly (3) comprises two oppositely arranged heating plates (301), and opposite sides of the packaging film (5) are located between the heating plates (301).

Citation Information

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