The Grandmother in the Siheyuan

Chapter 115 Patents
"Li Huaide, you are really too crazy." The leader sighed and said, "Although you have made many achievements in destroying steel mills in the past year, do you know what a CNC machine tool is? It took our Jingcheng Machine Tool Factory and Huaqing University a long time to jointly research and build a CNC machine tool, and it can only be realized in the laboratory."

The leader shook his head and said, "It's not that I look down on your steel mill, but do you have the conditions to do so?"

Li Huaide's father-in-law also angrily scolded: "I think you are becoming more and more ignorant of the world. How dare you open your mouth? Have you ever seen what a CNC machine tool looks like? How dare you say that your factory has made a CNC machine tool?"

Li Huaide was not intimidated at this moment. He had a clear idea in his mind: "I don't know what a CNC machine tool is, but I saw it with my own eyes. Just clamp the workpiece, press a button, and then wait for the automatic processing to be completed. Even if it is not a CNC machine tool, it is a fully automatic machine tool."

Seeing that Li Huaide didn't seem to be faking it, the leader asked doubtfully, "Are you sure that the automatic processing will start with the push of a button, and the workers should not perform any unnecessary operations?"

"We saw it clearly with our own eyes."

Liu Huaide's father-in-law frowned and said, "That shouldn't be the case. You may be experts in machine tools, but where do you get the technical strength for CNC?"

"Our factory engineer taught himself." Li Huaide said proudly, "And didn't I ask you to transfer someone to me some time ago? We got a technician from the radio to help us with the research."

His father-in-law nodded and said, "I know about this, but I didn't expect you guys were researching this. It's unbelievable. How are you going to survive in Huaqing University?"

The big boss nodded and said, "Since you, Li Huaide, won't cheat, then this matter is more important than the meeting we are about to hold. But we have to see it with our own eyes. Let's call the experts from the machine tool factory and the professors from Huaqing University to go and inspect it together. Let's go today."

The secretary quickly notified the experts in these two areas, and the three parties met at the steel mill to carefully evaluate the strength of the steel mill.

The three parties were in the test workshop, watching the machine tool automatically producing gears. Liu Hua only had to clamp the rough workpiece, press a button, and then wait for a while, and a gear would be produced.

"This is not a CNC machine tool." A professor of mechanical engineering at Huaqing University defined it as follows: "This machine tool can only produce a few products, but if it is used to produce parts that are used in large quantities, it will have great practical value."

Another semiconductor expert looked at the machine tool with shining eyes. As an expert, he could see the great usefulness of PLC at a glance.

"The value of this machine tool is certainly important, but I value Liu Hua and his team's design of this PLC more." The professor said excitedly: "The use of this thing is definitely not just a machine tool, it has a very broad development prospect, and its role is even no less than that of a machine tool."

The leader shook his head and said: "Then this machine tool becomes useless. It is tasteless to eat and a pity to throw it away."

Li Huaide's excitement immediately faded away, and he looked at Liu Hua with helpless eyes, thinking, why don't you say something, this is the crystallization of your wisdom, but it was criticized as worthless.

Liu Hua really stood up and said, "It is true that there is the shortcoming that the expert mentioned, but we can change the production process by modifying the program, so that we can produce other spare parts."

The expert asked with interest: "Can the program be modified?"

"Of course." Liu Hua immediately introduced: "At present, we use the ladder diagram programming method. Although it is a little troublesome, it is just our initial idea. I believe there must be a simpler programming method." Liu Hua introduced a lot of things and explained his programming logic and methods in detail, which made the experts nod their heads repeatedly.

"It is indeed a little troublesome, but it is quite useful and a very clever method." The expert praised: "For those commonly used spare parts and those factories with poor technical strength, we can prepare several boards with different programs in advance, and just replace them when changes are needed."

Another expert nodded: "Those with good technical capabilities can ask the technical workers to change the program directly."

A young man said excitedly: "This thing must be unique in the world. I haven't heard of it in other countries."

The Huaqing expert smiled and said: "This is not the only one in the world. The PLC designed by Liu Hua is unique and a very advanced design. It will be widely used in the world in the future."

Li Huaide suddenly asked: "Then can we sell it abroad and earn money from abroad?"

Although the country has not yet opened up, not every company is scrambling to make foreign money. Those companies that can make foreign money must be key companies, because we do need foreign exchange to purchase some domestic necessities, most of which are machinery.

An expert shook his head and said, "Your product is indeed good, but with foreign technology, it can be easily copied."

Liu Hua scratched his head: "I remember when I was reading those technical books, they seemed to mention something called a patent. It seemed that if you have this patent, others cannot copy it, otherwise it will be illegal."

The leader of the First Ministry of Machine Building turned to his secretary and asked, "Is this true?"

The secretary nodded and said, "There is indeed a patent alliance abroad. As long as a patent is registered in this patent alliance, all contracting states cannot violate the patent law, otherwise it will be illegal. But our country is not in this alliance, so they can't hold us accountable."

Liu Hua smiled and said: "Although we are not a signatory, as long as we register the patent in this alliance, they cannot copy it, otherwise they will be slapping themselves in the face."

The leader looked at the secretary, who shook her head and said, "I don't know the situation either, but I can ask the relevant parties."

Li Huaide said anxiously: "Is our machine tool useful or not? Our factory has put a lot of effort into it."

Experts from Huaqing University and Beijing Machine Tool Factory said in unison: "Of course it is useful, and very useful. Machine tools have their uses, and PLCs have their uses."

The expert in Huaqing Semiconductor nodded and said, "PLC is very useful. I think we need to hold a symposium to discuss it. At the same time, we need to open related majors in relevant universities and research institutes across the country to conduct in-depth research."

The head of the first-level department said to his secretary: "You must follow up on this patent matter as soon as possible."

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(End of this chapter)