What are the advantages of electronic scale molds
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Release date： 2025-05-19
Electronic scale molds are specialized molds used for producing electronic scale structural components, such as scale body shells, bases, display panels, internal brackets, etc. Their advantages mainly lie in precision assurance, production efficiency, cost control, quality stability, and functional adaptability, as follows:
1、 High precision molding capability
1. High dimensional accuracy
Electronic scale molds are specialized molds used for producing electronic scale structural components, such as scale body shells, bases, display panels, internal brackets, etc. Their advantages mainly lie in precision assurance, production efficiency, cost control, quality stability, and functional adaptability, as follows:
1、 High precision molding capability
1. High dimensional accuracy
Electronic scales have high requirements for the dimensional accuracy of components (such as controlling the sensor installation hole position error within ± 0.02mm). The mold ensures the accuracy of the cavity/core through precision machining techniques (such as CNC milling, electrical discharge machining, and slow wire cutting) to avoid poor sensor contact or loose assembly caused by dimensional deviations.
Example: The sensor installation slot of the scale body shell needs to be in contact with the sensor, and the mold can achieve micrometer level precision control.
2. Excellent surface quality
The surface of the mold cavity can be polished, electroplated, and processed to form a smooth appearance (such as mirror effect) or specific texture (such as anti slip pattern), meeting the aesthetic requirements of electronic scales (such as the metal texture shell of commercial scales).
2、 Advantages of efficient mass production
1. High injection/stamping efficiency
By using multi cavity molds (such as one out four, one out eight) or automated production lines (with robotic arms for picking up parts and conveyor belt transportation), multiple components can be produced in a single injection molding/stamping process, significantly increasing production capacity. For example, when producing household electronic scale casings, a single mold can produce hundreds of pieces per hour.
2. Reduce post-processing costs
When designing the mold, complex structures such as inverted threads, threads, and reinforcement positions can be integrated, forming it in one go to reduce secondary processing steps such as drilling, tapping, and polishing, and shorten the production cycle.
3、 Cost control capability
1. High material utilization rate
By optimizing the design of flow channels (such as hot runner molds), material waste during the injection molding process can be reduced, and waste can be recycled and reused to lower raw material costs.
Stamping molds improve the utilization rate of sheet metal through reasonable layout (such as cross arrangement and nesting), especially suitable for precious metal materials such as stainless steel and aluminum alloy.
2. Low long-term cost sharing
The mold has a long service life (excellent molds can achieve over one million stamping/injection molding cycles), and the cost of molds allocated to individual components is relatively low, making it suitable for large-scale production.
4、 Quality stability and consistency
1. Standardized production
The parts produced by the same mold are highly consistent, avoiding individual differences caused by manual processing or general mold, and ensuring the assembly accuracy and performance stability of the whole electronic scale (such as the screw hole positions of the weighing body shells of each batch are completely consistent).
2. Strong controllability of defects
Moldflow analysis can be used to predict shrinkage, weld lines, and other issues during the injection molding process in advance, and optimize the gate position and cooling system to reduce product defects from the source.
5、 Complex structure and functional integration
1. Multi functional integrated design
Molds can form integrated structures, such as:
The scale body shell is equipped with reinforcement ribs to enhance its impact resistance performance;
The display panel mold directly molds the transparent area (such as LED display screen windows) and button grooves, reducing the assembly process;
The base mold integrates anti slip foot pad installation position, without the need for later pasting.
2. Special process adaptation
Support embedded injection molding (such as embedding metal nuts and sensor brackets in plastic shells), or two-color injection molding (such as one-time molding of transparent display windows and colored shells), to meet the functional and appearance design requirements of electronic scales.
6、 Adapt to the special needs of the industry
1. Anti corrosion and wear-resistant design
For liquids that electronic scales may come into contact with (such as oil stains on kitchen scales and chemical reagents on laboratory scales), the mold is made of corrosion-resistant steel (such as stainless steel) or surface coating treatment to ensure the chemical resistance of the molded parts.
2. Balance between lightweight and strength
By using thin-walled injection molding technology or rib structure design, the material usage can be reduced while ensuring strength (such as reducing the wall thickness of the scale body shell to below 1.5mm), meeting the lightweight requirements of household scales and reducing transportation costs.
7、 Correct adaptation to electronic components
1. Sensor installation accuracy guarantee
The mold directly forms the sensor fixing seat, wire groove and other structures to ensure that the installation holes and wiring directions of the strain gauge sensor and weighing module are completely matched, avoiding inaccurate weighing caused by manual assembly errors.
2. Electromagnetic compatibility (EMC) optimization
The shielding cover formed by metal molds can wrap around circuit boards, reduce external electromagnetic interference, and improve the stability of electronic scales in complex environments.
8、 Summary
The core advantage of electronic scale molds lies in achieving high-precision and low-cost production of components through precision design and manufacturing, while meeting the strict requirements of the electronic scale industry for structural strength, appearance quality, and functional integration. The technical threshold is reflected in the deep control of material properties (such as plastic flowability, metal stamping rebound), electronic component adaptability, and long-term production stability, which is the key foundation for the large-scale production of electronic scales.
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