1874, the "era of hand washing" is facing unprecedented challenges. American Bill Black invented the wooden hand washer. The appearance of this device greatly encouraged people who are trying to improve their living efficiency, and the improvement process of washing machines began to be greatly accelerated.
1880, steam washing machines appeared in the United States, and steam power began to replace manpower.
19 10, Fisher Company of the United States successfully trial-produced the world's first electric washing machine in Chicago. The appearance of electric washing machine marks the beginning of human housework automation.
1922, Matayiger Company of the United States reformed the washing structure of the washing machine, changing the drag type into the stirring type, so that the structure of the washing machine was fixed, and this was the birth of the first stirring washing machine.
1932, Bendex Airlines announced that they had successfully developed the first front drum washing machine, in which washing, rinsing and dehydration were completed in the same drum. This means that the type of electric washing machine has jumped to a new level and taken a big step towards automation.
1937 the first automatic washing machine came out, which is a "front-mounted" automatic washing machine. A cylinder driven by a horizontal shaft can hold 4000 grams of clothes. Clothes keep rolling up and down in a sink filled with water to purify and remove dirt.
In the 1940s, a modern "overhead" automatic washing machine appeared.
1955, Japan developed a unique pulsator washing machine based on the introduction of jet washing machine from Britain, which has been popular ever since. At this point, the situation that pulsator, drum and stirring are divided into three parts in the production field of washing machines has initially taken shape.
In 1960s, a double-barrel washing machine with a dry barrel appeared in Japan, which was called "semi-automatic washing machine".
In the 1970s, a fully automatic pulsator washing machine was produced.
In the late 1970s, an automatic washing machine controlled by a computer (actually a microprocessor) came out in Japan, which opened a new stage in the history of washing machines.
In 1980s, the application of "fuzzy control" made the washing machine easy to operate and fully functional.
In the 1990s, due to the improvement of motor speed regulation technology, the washing machine realized a wide range of speed conversion and adjustment, and many new water washing machines were born.
Since then, with the development and perfection of motor-driven technology, Japan has produced a motor-driven washing machine, canceling gear transmission and speed change mechanism, which has triggered a huge revolution in the driving mode of washing machines.
Extended data:
Basic form:
1, European style
Also known as "drum type" or "drum type", it can be subdivided into "front exposure type" and "top exposure type", and most of them are fully automatic models. Front lift: As the name implies, the front lift washing machine door is open in front of the fuselage, which is mostly transparent and can directly see the inside of the washing bucket.
Top-lift type: The door of the top-lift washing machine is opened on the fuselage, and there are few models of transparent doors, but the washing principle of the two machines is the same. In addition, European style can be divided into sizes with or without drying function, but basically they all have dehydration function.
2. American style
Also known as "stirring type", "stirring column type" or "stirring rod type", it is the oldest electric washing machine, mostly automatic, which can be further divided into those with dryer and those without dryer.
Modern American washing machines have the function of automatic dehydration, so it is not necessary to put clothes one by one into an electric dehydrator to dry them like two flour grinding bars. In addition, washing rods can be divided into "single section" and "double section", and the washing effect is different, but the price of the double section model is usually higher.
3. Japanese style
Also known as "pulsator" or "pulsator", it can be subdivided into "single trough" and "double trough" single trough: basically, the single trough washing machine is improved from the American washing machine and is mostly controlled by a fully automatic microcomputer.
Double-tank washing machine: Double-tank washing machines are mostly semi-automatic machines, which separate the washing and dehydration parts. Every time you wash clothes, you have to manually move and dehydrate them. Although it is troublesome, it is still produced because of the low price.
References:
Baidu encyclopedia-washing machine