It's really not that difficult to imitate a device. The design of various machinery is to follow a certain routine, such as how to connect between two parts, it is nothing more than several ways, not to mention Zhao Xingwang, an engineer from the class, even if it is an ordinary fitter, as long as there is some experience, you can see it.

Many parts in the machine are standard parts, such as screws, springs, bearings, etc., and there are several fixed specifications. When designers design machinery, they generally choose these fixed-specification parts, rather than making a separate set of their own.

The use of fixed specifications means that many parts can be manufactured in batches by specialist factories, which can significantly reduce costs. In addition, the unification of the specifications of the parts means that the versatility can be improved, and the parts of the same specification in different positions can be replaced, so that users do not need to prepare spare parts for each part separately, which can reduce the cost of spare parts inventory.

The standardization of parts can also improve the versatility of the tool, for example, the nuts of the general screws are hexagonal, there are several different sizes, and the repairman only needs to prepare a set of hex wrenches to remove all the screws. If the shape of the nut is not uniform, there are triangular shapes, there are pentagonal shapes, it looks quite artistic, but the repairman is going to go crazy.

Since most of the parts are standardized, when copycat a device, these parts can be purchased from the market, and copycat manufacturers do not need to manufacture these parts themselves. Heling City has a well-developed private machinery manufacturing industry, thus forming a very complete set of parts supporting system. In the streets and alleys of Heling City, there are all kinds of spare parts stores, where you can buy spare parts of various specifications. It's a bit like the "Huaqiangbei" of later generations, where you can design a new phone with superior performance according to your needs, and all the accessories are ready-made.

Enterprises such as Longhu Machinery Factory dare to try all kinds of new equipment, and it is based on such an industrial supporting system that economists call it "industrial commons".

The Zhao brothers transported the baler of Linyi back to the factory, and immediately organized workers and engineers to start further dismantling and drawing assembly drawings. For the standard parts involved, someone will measure the specific specifications and then go to the store to buy them. For those non-standard parts, you need to measure the specific size, draw drawings, and manufacture them yourself.

"Front-end lock-up mechanism bearing fracture ......"

Zhao Xingwang and two engineers crouched in front of the part known as the front-end locking mechanism, carefully observing the structure of the part.

The baler designed by Linyi Machine adopts the front-end block design, that is, after the light and thin scrap steel is pressed into a bale, it will be pushed out from the front end by a special device. This door at the front end is closed when the machine presses the bale and waits until the bale is pressed before opening it so that the lump can be released. This opening and closing, naturally need to have a locking device, from the whole pressing process, this locking device is to withstand some pressure, if the pressure is too large, there may be a breakage of parts.

In the report of Jingnan Daily, it was conclusively claimed that the bearing fracture occurred in the front end locking mechanism of the baler imitated by a company, and the engineer named Han Weichang told reporters that this was caused by insufficient processing accuracy. Although Zhao Xingwang didn't completely believe the content of the newspaper, when he disassembled this part, he couldn't help but take a few more looks.

"Mr. Zhao, I think the reporter may have made a mistake, right?" said an engineer named Pan Youdong, "From the perspective of the force, it is impossible for the bearing to break, but the support shaft in front is relatively stressed, and it is this shaft that is broken." ”

"What does the reporter know, it must have been when people said it, and she heard it wrong. Another engineer named Liu Nian said.

Zhao Xingwang nodded and said: "You are right, I also think that there is no problem with the bearing, if there is a problem, it should be the problem of this support shaft." The newspaper said that the reason for the failure was not enough machining accuracy, do you think it makes sense?"

"I've never heard of that. Pan Youdong said, "What is the relationship between machining accuracy and force?"

"It's still related. Liu Nian said, "If the precision is low and the surface is not smooth enough, the contact surface between the shaft and the bearing will be small, and the pressure distribution will be uneven, will it be easy to cause fracture?"

"There's some truth to that. Zhao Xingwang said.

Liu Nian said: "Mr. Xiao Zhao, there is a building, you see, the machining accuracy of this support shaft is indeed very high, and the other parts are finished turned, and this one is obviously grinded." That Han Weichang also said the same. ”

Pan Youdong said: "Whatever, since he said that he had to grind, then let's go to the grinder to grind, and it won't increase many working hours." ”

Zhao Xingwang said: "That's right, we do everything according to their standards." They use lathes to process, and we also use lathes to process. They go to the grinder, and we go to the grinder. We're exactly like them, and I don't believe anything will go wrong. ”

It is said that it is exactly the same, but in fact, there is still a bit of a difference in the end. The selling point of copycat products is that they are cheap, so you don't have to worry too much about requirements such as appearance. Influenced by the psychological hints brought about by the article in the newspaper, Zhao Xingwang put forward relatively high requirements in the places where the force structure was involved, including adding a grinding machine to some places that only needed to be processed by fine turning. But in some other places, Longhu Machinery Factory is based on the principle of saving and saving, and the equipment finally built, the noise alone is much bigger than that of the machine.

"It's still not as good as the original quality. ”

After Zhao Xingwang took a group of workers to install the "Dragon Machine" packer in the workshop of Yuntang Company, Yu Changfa looked at the equipment three ways and three ways, and smacked his lips and commented.

"It's just the appearance, it's exactly the same to use. Zhao Xingwang said.

"Did you try the machine before you shipped it?" Yu Chang asked.

Zhao Xingwang said: "I tried it, I played 50 packs, except that the sound was a little louder, and the others were no different from the machines of Linyi." ”

"So can you turn it on now?" Yu Changfa asked again.

"Anytime. Zhao Xingwang said.

Yu Changfa called his workers and asked them to start loading, and then start the baler and start working. Piles of rusty scrap are thrown into balers, which roar to squeeze the various shapes of scrap into flakes. Then, the front outlet opens, and a lump is pushed out and falls to the ground. Subsequently, the outlet's mouth is closed again, the upper cover of the machine body is opened, and the automatic feeding device puts the next batch of waste into the machine body to start a new round of compression and baling.

"Well, it's a little louder. Yu Changfa said critically. In his heart, he is quite satisfied with this baler, the effect of packaging is no different from the baler of the Linyi machine, it doesn't matter if the sound is louder, the workshop is already noisy, who cares about the sound of the machine.

"I'll say it!" Zhao Xingwang had a smug look on his face, "Don't listen to those reporters' nonsense, what kind of fake product quality is not good, what about coaxing ghosts......?

As soon as he said this, he heard a crunch "click", followed by the overload sound of the motor whining. The operator sitting on the edge of the console was an experienced operator who pressed the stop button with a quick eye. The motor stopped abruptly, and the scene was silent.

"It's ...... , what's going on!" Zhao Xingwang shouted in a lost voice.

"Mr. Xiao Zhao, the support shaft at the front end ......" Pan Youdong, who came to test the machine, pointed to the baler with his finger, and his voice was a little out of tune.

I saw that at the front end of the baler, the outlet, which should have been locked, was squeezed open, and the support shaft at the lower end of the outlet, which had been separated from the shaft seat, was a white stubble on the surface.

The support shaft is broken!

Zhao Xingwang only felt that his brain was buzzing, and he couldn't see anything in front of him, only the gray-white stubble remained.

How is this possible? I am clearly in strict accordance with the size of the equipment of the machine to imitate, the machine said that the support shaft to be polished, I let the workers according to the standard polishing, the surface accuracy, the same roundness or something, are exactly the same as the shaft on the equipment of the machine, what is the reason for it to break?

Before sending the equipment to Yuntang Company, he had already tried the car in the factory. Although he did not hit 50 packs as he said to Yu Changfa, there were more than a dozen packs, and the equipment ran without any problems. Now that he has just hit a few bags, the shaft is broken, how can he explain this?

"Mr. Xiao Zhao, I have seen it, there are many short steel bars in the batch of scrap steel just now, and it may be a little more stressful when packing...... Pan Youdong came forward to see it, and then came back and reported to Zhao Xingwang in a low voice.

When the baler was tested in Longhu Machinery Factory, the raw material used was the iron shavings produced by the factory itself, which was relatively soft and the packing pressure was not large. Yuntang company's scrap steel, there are many types, some of the strength of the short steel bar is very large, to squeeze them into blocks, you need to apply more pressure, obviously, the support shaft of the front end mechanism is because it can not withstand such pressure and break.

The reason was found, but Zhao Xingwang couldn't tell Yu Changfa at all. The baler is used to compress all kinds of steel, and the light and thin scrap steel purchased by the recycling material company has soft materials such as iron shavings and iron sheets, as well as high-strength materials such as steel bars and screws.

"Mr. Zhao, what's going on?"

Yu Changfa also came over, his face was terrifyingly dark. If he had only believed three points in the newspaper before, he now believed nine points. It seems that Linyi Machine does have a unique technical know-how, they say that the quality of the cottage products is not good, and they are not deliberately hacking competitors.