Washing Machine Manufacturing Solution

This solution facilitates a fully automated production workflow, encompassing automatic feeding of raw materials for washing machine cabinets, stretching, stamping, waste collection (including scraps), riveting, and stacking.
washing machine

The washing machine cabinet, with its maximum height exceeding 1.5 meters and weight reaching up to 20 kilograms, is typically produced through a four-step process involving a 400-ton heavy-duty press machine in conjunction with molds. This traditional manufacturing process presents two major pain points. Firstly, since the washing machine models are differentiated based on cabinet size, each model necessitates a unique set of molds, thereby escalating costs, occupying valuable production space, and causing significant inconvenience during mold changes on the production line. Secondly, the large spacing of 6 meters between consecutive heavy-duty press machines, coupled with the cumbersome size and weight of the cabinet sheet metal, necessitates a total workforce of 20 individuals per line, resulting in extremely low efficiency and frequent workplace injuries. This has become a quintessential labor-intensive production line.

The traditional process relies on two sets of molds, with manual mold changes and material feeding to produce two different specifications of components. This approach entails increased mold costs, space utilization, time-consuming efforts, high accident rates, and inefficiencies.

The solution includes integrating one secondary positioning station, four independent stamping robotic arms, three articulated robots, seven waste material conveyor belts, two product conveyor belts, one riveting mold with feeding device (excluding the hydraulic press), and two single-station sheet metal feeders. This setup facilitates a fully automated production workflow, encompassing automatic feeding of raw materials for washing machine cabinets, stretching, stamping, waste collection (including scraps), riveting, and stacking.

washing machine production line

Mold Improvement: Intelligent Adjustable Quick-Change Mold Technology

We have autonomously developed a simple and rational mold design that meets the needs of producing two different specifications of components with a single mold, addressing an industry gap and aligning with energy conservation and emission reduction objectives. This mold leverages PLC-controlled cylinders for mold changing, ensuring intelligence and environmental friendliness. In practical applications, it seamlessly integrates with independent robot hardware and software, achieving a high level of intelligence and automation.

Automation Improvement: Large Sheet Metal Stamping Independent Robotic Production Line

This production line is suited for large sheet metal components, offering extensive grasping capabilities and multi-directional rapid flexible production, including left-right, up-down, and turning movements. It can replace imported robots, reducing costs by 50% and increasing efficiency by 60%.

Explicit Benefits

  • Annual Profit Increase: Approximately 315 million pcs – 157.5 million pcs (assuming double production efficiency) × ¥1/piece ≈ ¥157.5 million(assuming a profit of ¥1/pcs).
  • Additional Income: Total increase in income equals profit increase plus labor cost savings plus mold cost savings = ¥157.5 million+(¥360 million- ¥18 million) + ¥150 million≈ ¥650 million.

Implicit Benefits

It offers absolute advantages in terms of quality and safety, eliminating concerns related to product quality, workplace accidents, and employee management.

Before UpgradeAfter UpgradeNotes
PeopleWorkforce: 
20 people/shift * 3 shifts/day = 60 people/year 

Annual salary: 
60 people * $5,000/month* 12 months = $360 million 

Annual production: 
6 pcs/mins * 60 minutes/hr * 24 hrs/day * 365 days/year ≈ 315 million pcs
Workforce: 
1 person/shift * 3 shifts/day = 3 people/year 

Annual salary: 
3 people * $5,000 /month * 12 months = $18 million

Annual production:
12 pcs/mins * 60 mins/hour * 24 hrs/day * 365 days/year ≈ 630 million pcs
Labor cost reduced by 20 times 

Annual production increased by 2 times
MachinesRegular use of one forklift (with a driver) 

Press machine utilization rate: 70%
Press machine utilization rate: 95%Utilization rate increased by 36% 

Mold cost reduced by 2 times 
Materials (Molds)2 sets * 5 processes = 10 molds 

Cost: ¥300 million 
1 set * 5 processes = 5 molds 

Cost: ¥150 million
MethodsNecessitates attendance, performance, safety precautions, and other regulatory frameworksRequires only machine maintenanceAutomation, intelligence, informatization, and lean management  
EnvironmentCrowded workforce, space occupied by molds, forklift traffic, messy and unsafe conditionsWorkshop resembles an exhibition hall
Input-Output Analysis Chart

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