After sending away Jiang Xiaowei, manager of the logistics and purchasing department, Niu Xiaobai immediately summoned planner Jiang Hui, production engineers Tang Cheng and Hu Xiuping, and four production foremen to the conference room of the machine shop for a meeting.
As soon as everyone sat down, Niu Xiaobai said straight to the point: "Everyone, I think everyone knows that due to some unexpected reasons, all the urgent goods we rushed to MKL were scrapped. The group headquarters attaches great importance to this
, even Director Pei of the Sales Department personally asked about it. With the strong support of Manager Jiang of the Logistics and Purchasing Department, the raw material suppliers needed to redo the products will be delivered this afternoon. Now, let’s discuss how to speed up production.
Progress, and strive not to delay this shipment..."
After finishing speaking, Niu Xiaobai looked at Tang Cheng and asked: "Tang Cheng, have the process files been updated? No matter what, there must be no more problems with the process parameters this time!"
"Well..." Tang Cheng, who looked nervous, was about to answer, but Hu Xiuping, who was sitting next to him, stood up directly and handed a document to Niu Xiaobai: "Manager Niu, I have updated the process documents.
Don’t worry! These process parameters are obtained through repeated calculations by myself and combined with the experience of the production line employees’ last trial of samples. There can be no mistakes.”
After saying that, Hu Xiuping turned his head and looked at Tang Cheng with a look of contempt, and continued: "It is impossible for a senior engineer like me to make some low-level mistakes like some 'three-legged cats'."
"You!" Of course Tang Cheng knew that Hu Xiuping was talking about him, but he couldn't refute, so he blushed and lowered his head; planner Jiang Hui's face was unusually solemn, she bit her thick lips and did not speak.
Niu Xiaobai saw the embarrassment of Tang Cheng and Jiang Hui. Just now "Uncle Jiang" specially told them to take good care of them... Niu Xiaobai sighed secretly in his heart.
After taking a breath, he looked at Hu Xiuping's updated process documents and asked Jiang Hui: "Xiaohui, according to your experience, can we make it in time this time?"
Jiang Hui lowered her head, held the notebook tightly with both hands, and said in a low voice: "According to MKL's requirements, 17:00 this Friday is the final delivery time... In other words, it is fully calculated and only left for
Our production time is 4 working days. According to the previous production speed, it will take at least 7 working days to produce these 200 stepped shafts. This time, it must be... it must be too late..."
Jiang Hui's voice became softer and softer, until finally it was so quiet that even the people sitting next to her could not hear clearly. The trouble this time was caused by her boyfriend Tang Cheng. Everyone could see that at this time
At this moment, Jiang Hui was under great psychological pressure.
Niu Xiaobai nodded and said "hmm". He had already expected that Jiang Hui would say this answer. In fact, in order to meet the delivery date of this urgent batch of goods from MKL Company, Niu Xiaobai had a very detailed discussion with Leng Shi.
We had an in-depth discussion, so we already had countermeasures in mind.
It's time to express what you think! Niu Xiaobai looked around at his subordinates and said to everyone in a very serious tone: "This morning, Director Pei from the group sales department called me and said that this time it is absolutely not allowed.
Delayed delivery - Not only is delay in delivery allowed, but quality and quantity must be guaranteed. This is our goal!"
Everyone focused their attention on Niu Xiao
Bai's body and eyes were full of doubts, as if he felt that the goal he mentioned was unachievable.
Niu Xiaobai cleared his throat and continued: "Now let me talk about how we should take specific actions to achieve this goal. In fact, the action we need to take is very simple, which is to remove the in-process products produced on the production line
, from the original batch flow to single piece flow, which is what everyone often calls 'single piece flow'."
Zhang Tiancheng curled his lips and said: "Manager Niu, isn't this the same? Anyway, if we want to produce so many products, we need to go through so many processes, and the required processing time must be exactly the same."
Niu Xiaobai shook his head and said in a very definite tone: "Tiancheng, the production time required by these two flow methods is definitely different. Let me explain to you why the single-piece flow is used as this production method.
,can we shorten the production cycle?”
Niu Xiaobai walked to the whiteboard, drew four boxes on the whiteboard, and wrote the four letters "A, B, C, D" in the boxes. "Suppose we produce a certain product that needs to go through A,
There are four processes B, C, and D. For the sake of calculation convenience, let us assume that the production time required for each process is 1 minute. Then, according to the current batch flow method, how many times will it take to produce 200 of this product?
How long will it take?"
Niu Xiaobai stopped, looked at everyone, and then wrote the number "200" under each box. He turned to ask everyone: "Is this what we are doing now: A
The process takes 200 minutes to complete the entire batch of products, and then transports the entire batch of products to process B; process B also takes 200 minutes to complete the transport, and then transports it to process C... and so on, if the transport time is ignored
Without counting, theoretically we produce the first product at the 601st minute, and it takes a total of 800 minutes to complete the entire batch of products. Please tell me, is my calculation correct?"
People in the conference room looked at me and I looked at you, and then they all nodded silently.
Niu Xiaobai continued: "Okay, next, let me calculate the production time required for the single-piece flow method. After a product is completed in process A, it is immediately transported to process B; after process B is completed,
Immediately move to process C... By analogy, the first product can theoretically be produced in the 4th minute - of course, we also ignore the transportation time. Calculated in this way, 200 of this product can be produced
The total time required is 204 minutes, which saves nearly 600 minutes compared with the original production method of batch flow. As you can see from this picture, the 600 minutes saved are actually the products in each process.
Process waiting time.”
"Wow!" Niu Xiaobai's calculation result made everyone in the conference room shine. It seems that it is possible to deliver goods to MKL on time this time. Planner Jiang Hui was even more energetic.
His eyes shone, changing from the sluggish mood just now.
"It sounds like this, but it's actually impossible!" A high-pitched voice said loudly. Everyone knew without looking that it was Zhang Tiancheng's voice. Everyone focused their attention on him.
"Oh? Tiancheng, tell me why it's impossible?" Niu Xiaobai asked.
Zhang Tiancheng stood up, crossed his arms and said loudly: "Manager Niu, I'm not afraid of offending you, I think there is something wrong with your calculation! Just now you have been emphasizing that the transportation time is ignored, and what you said is
The single-piece flow production method requires that after each product is completed in a certain process, the product must be immediately transferred to the next process, which requires a lot of handling time!"
Niu Xiaobai nodded: "Tiancheng, what you said is true. I have read relevant information. Production workshops that implement single-piece flow are basically laid out according to the product's process route: put equipment in adjacent processes next to each other.
Together to reduce handling, or directly passed between operators by hand, it is very suitable for small batches and multi-variety production. However, our current machining workshop is laid out according to the type of equipment, and the same equipment is placed
Together, the original intention of this layout is to facilitate equipment management, operator training and specialization, and is more suitable for mass production."
Niu Xiaobai also stood up and said to everyone: "Obviously, we can no longer stick to the unreasonable production methods of the past. We must adapt to the new situation and make reasonable adjustments to the layout of our machine shop. This is what I
The next focus of work. As for this batch of urgent goods from MKL..."
Niu Xiaobai scanned everyone present with his eyes and said in a very firm tone: "Under the premise that the layout of the existing equipment cannot be changed in a short period of time, I plan to use the human sea tactic and specially arrange a few people to carry out the work in progress.
.”
Zhang Tiancheng laughed strangely: "Haha! Manager Niu, you put it nicely! It's a waste of manpower to move these 200 stepped shafts one by one between so many processes, isn't it? And
, our production line is so busy now that even the production workers are overwhelmed, how can you get so many people to move it for you? Oops! The leader just opens his mouth, and the subordinates lose their legs!"
After hearing Zhang Tiancheng's sharp words, everyone looked at Niu Xiaobai's face, but found that Niu Xiaobai didn't look angry at all. He said calmly: "I happen to be free recently, so just treat it as..."
Get some exercise, I can work as a porter."
"I don't have many things to do in the past two days, so can I!" Jiang Hui raised her left hand and poked Tang Cheng, who was sitting next to her, with the elbow of her right hand. The latter quickly raised his chubby
Left hand.
The production foreman is the leader of the army. In addition to arranging production tasks, checking the implementation of various rules and regulations, coordinating production workers, etc., he actually has a lot of very flexible spare time. Niu Xiaobai took the lead in expressing his views.
, except Zhang Tiancheng, the other three production foremen also raised their hands silently.
Niu Xiaobai smiled and waved to everyone: "Thank you for your support! Please put your hands down. You see, the problem of the porters has been solved. Xiaohui, just follow the single-piece flow idea I just mentioned.
Production?"
At this point, everyone thought Zhang Tiancheng would give up, but unexpectedly he still stood there and continued: "Manager Niu, even if the transportation matter is solved, it is impossible to arrange single-piece production now.
As far as I know, there are prerequisites for realizing single-piece flow. During the last meeting, brothers mentioned these prerequisites to you one by one. Let me summarize them again and tell them to you.