| 1 | Basic Structure and Components of Medical Device Injection Mold |
| 2 | Features of Medical Device Injection Molds |
| 3 | Design Requirements for Medical Device Injection Molds |
Disposable medical supplies injection molding injects molten plastic into a pre-set medical device injection mold cavity. After cooling and solidifying, the disposable medical supplies injection molds are precisely formed into various disposable medical device components, such as syringes, infusion sets, blood collection devices, and drainage tubes. These medical device injection molds play a vital role in the manufacturing of disposable medical supplies. With disposable medical supplies injection mold’s efficient production, precise control, and stable output, medical device injection mold meet the medical industry's high demands for product consistency and safety, becoming an indispensable step in the mass production process.
1.Basic Structure and Components of Medical Device Injection Mold
The structural design of disposable medical supplies injection mold must closely match the appearance and functional requirements of different medical devices. Its core consists of two parts: the die and the punch. These components precisely mate to form the plastic raw material.
The die is the main body of the medical device injection mold and primarily consists of a die assembly base, a die assembly, and a retaining plate. The die assembly base provides structural support and ensures stability under high pressure. The die assembly creates a cavity tailored to the shape and size of the disposable medical device, determining the final appearance. The retaining plate secures the die assembly to prevent displacement due to pressure and ensure molding accuracy. The punch, as the molding component, has a complex structure, consisting of a punch assembly base, a punch assembly, a retaining plate, and a cavity shutoff assembly. The punch assembly base works in conjunction with the cavity assembly base to provide a stable mounting base. The punch assembly and cavity assembly form a closed space, ensuring that the molten plastic fills the desired structure. The retaining plate secures the punch assembly, ensuring precise alignment. The cavity shutoff assembly controls the plastic filling range to avoid overflow or underfill.
2.Features of Medical Device Injection Molds
1)Highly stable disposable medical supplies injection mold
The production of disposable medical products typically requires long, high-frequency continuous operations, placing extremely high demands on disposable medical supplies injection mold stability. Medical device injection molds are typically constructed from high-strength metal alloys (such as P20 pre-hardened steel and H13 hot-work die steel). These alloys offer excellent wear resistance, fatigue resistance, and high-temperature resistance, ensuring stability during continuous injection cycles and preventing dimensional deviations due to wear or deformation.
2) High precision disposable medical supplies injection mold
The medical industry places extremely high demands on the dimensional and structural accuracy of disposable medical supplies. For example, the clearance between the plunger and barrel of a syringe must be controlled within 0.01-0.03mm. This requires that disposable medical supplies injection mold thoroughly consider the product's shape details and dimensional tolerances during the design phase. CAD software is used to construct a 3D model, and finite element analysis is used to optimize the mold cavity structure to avoid issues that affect precision, such as sink marks and warping. During the manufacturing process, high-precision equipment such as CNC machining centers is used to ensure that the dimensional tolerance of the molded parts is ≤ ±0.02mm.
3) Medical device injection mold with a wide range of applications
Disposable medical supplies come in a wide variety of types, covering multiple medical scenarios such as injections, infusions, and blood collection. Disposable medical supplies injection mold, with their flexible structural design and process adaptability, can meet the production needs of various medical supplies. For example, in syringe manufacturing, medical device injection molds can accurately produce core components such as the barrel and plunger. In infusion pump production, disposable medical supplies injection molds can accommodate diverse structural requirements such as the drip tip and hose connector.
4) High quality medical device injection mold
Disposable medical supplies come into direct contact with the human body, and their product quality is closely linked to patient safety. High-quality disposable medical supplies injection mold adhere to medical industry standards in material selection, using non-toxic, leachable materials to avoid contamination of the plastic raw material. Stringent quality control during processing ensures disposable medical supplies injection molds are free of cracks and burrs, thus guaranteeing the quality of the finished product.
5) Efficient disposable medical supplies injection mold
The medical industry has a huge demand for disposable medical supplies, especially during public health emergencies, which places extremely high demands on product supply efficiency. Disposable medical supplies injection mold has efficient production capacity, enable rapid and accurate production of various medical supplies. Medical device injection mold typically utilize a multi-cavity design, coupled with high-speed injection molding machines to achieve injection cycles of 1-2 times per second, significantly increasing production output.
3.Design Requirements for Medical Device Injection Molds
1) Simple and aesthetically pleasing appearance for medical device injection mold
Modern medical product design emphasizes not only functionality but also a simple and aesthetically pleasing appearance. When designing disposable medical supplies injection mold, the product's appearance must be considered, with a focus on simplicity in shape, color, and material. This ensures a smooth surface, smooth lines, and ease of use.
2) High precision for disposable medical supplies injection mold
The dimensional accuracy of disposable medical supplies directly impacts performance. For example, dimensional deviations in infusion pump connectors can lead to mismatch and even the risk of leakage. Therefore, precise control of the dimensional accuracy of both the molded part and the mold is crucial for designers of disposable medical supplies injection molds.
3) Ease of operation and maintenance for medical device injection mold
The operation and maintenance of disposable medical supplies injection molds involve multiple personnel. To ensure smooth production and medical device injection mold life, ease of operation and maintenance must be factored into the design. Disposable medical supplies injection mold should feature standardized mounting interfaces for easy connection to the injection molding machine and clear operational markings to ensure operators can quickly understand and master the process. Furthermore, molds should have a modular structure to facilitate the replacement of high-wear parts and reduce maintenance time.
