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Doffer Car Market Hot Collective Doffing Pformation Cold

2013/9/2 20:17:00 32

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Textile Machinery Textile Machinery Industry Doffer Textile Machinery Market

in recent years, in China's < a href= "http://www.91se91.com/news/index_c.asp" > spinning enterprise < /a >, the advanced equipment has already realized the connection of thickness and detail, and is considering the problem of spinning the unmanned workshop. But at the same time, there are still many enterprises employing about 100 people, which is worrying about the rising cost of human resources.

This is one aspect of China's < a target= "_blank" href= "http://www.91se91.com/" > textile < /a > upgrading of industries.

In this case, the market of the doffing car has been rising all the way in recent two years.

On the one hand, many large spinning enterprises in China continue to purchase, on the other hand, more and more equipment manufacturers begin to develop such equipment.

doffer car market is hot, /p >

> a href= "http://www.91se91.com/news/" > spinning frame < /a > intelligent doffer car was first debuted at the 2011 Shanghai international textile industry exhibition. It has been developing rapidly only for more than two years.

At present, Shandong Lian run Mstar Technology Ltd, Jiangsu Dasheng Group Co., Ltd., Anhui Huamao textile and Limited by Share Ltd and other advanced textile enterprises are using the S9 automatic doffer machine produced by Tongling song Bao Machinery Co., Ltd.

Zhang Xin, deputy general manager of Shandong Lian run new Mstar Technology Ltd, told reporters that in early July, the company completed the pformation of 50 thousand spindles automatic doffing car, and introduced 3 sets of 6 automatic loose doffing cars.

After the pformation, the phenomenon of full yarn falling down is eliminated, and the efficiency of spinning is greatly improved.

In terms of employment, after the pformation, the number of doffing workers per shift was 6, and three shifts were 18, just half of the doffing employment before pformation.

with the recognition of more and more a href= "http://www.91se91.com" > spinning enterprise < /a >, some a href= "http://www.91se91.com" > textile machinery enterprises < /a > also put their eyes on this field.

Shaanxi Hengxin precision textile machinery Co., Ltd. exhibited the hx-l78 intelligent doffing car recently developed by the company at the Shanghai textile industry exhibition. Ma Yan, deputy general manager of the company, introduced that the doffer car is currently being debugged at the customer's office and will be fully promoted to the market in the future.

a large number of doffer cars are the choices made by the spinning enterprises based on the current equipment status.

Although the collective doffing device has been launched for some time, many enterprises have not completed the upgrading of the equipment.

Affected by the recent market environment, enterprises are also afraid to expand their capacity on a large scale.

When labor costs continue to rise, production capacity can not continue to expand at a low level, and equipment upgrading funds are limited, the timely emergence of doffing cars caters to the needs of many enterprises for reducing labor and increasing labour productivity.

collective doffing pformation cold, /p >

> a href= "http://www.91se91.com" > spinning machine > /a > short car collective doffing device pformation also belongs to articles on existing equipment, but also can reduce labor and improve labor productivity.

But its current market prospects are not satisfactory.

Yu Tangchu, chief engineer of Jujube Wantong Cotton Textile Industrial Co., Ltd., said that it is not realistic to carry out a large-scale collective doffing device pformation of the existing equipment.

Because of the different specifications and ingot number, some short cars need to be built into long cars during the pformation, which adds a lot of pformation costs.

"P > Shanghai two < a href=" http://www.91se91.com "> textile machine < /a > staff said that the company's collective doffing device pformation project is also in progress, but the progress is not very ideal.

The main reason is that the main frame of the reformed spinning machine has different operation conditions and different usage States, resulting in the fact that the actual use of the spinning frame is inconsistent with the expected value.

There is a big gap between the revamping and the original doffing device in many technical indexes, so there will be many difficulties to overcome in the way of reforming the collective doffing device of the traditional spinning frame.

> a href= "http://www.91se91.com" > textile machinery < /a > Tian Keqin, deputy chief engineer of Limited by Share Ltd Yuci branch, also believes that the automatic doffing smart car of spinning frame will become the mainstream of short car doffing in the premise of effectively solving the problem of extubation of spindle.

Although it is not optimistic about the pformation of the collective doffing device of the spinning machine, the experts and business people believe that for the spinning enterprises, the doffing car is only a "temporary need" and the collective doffing long vehicle is the "general trend".

Tian Keqin said that doffing cars and collective doffing are devices to solve doffing problems.

Foreign countries have done research on doffing cars, but failed to find an ideal plan, so they chose long cars.

In order to solve the doffing problem of existing short cars, China has invested a lot of manpower and material resources to study doffing cars and has made gratifying achievements.

Looking at the last two exhibitions, manufacturers focus on the short car doffing, while long cars adopt the collective doffing technology.

According to our analysis, the short car doffing can only be a pitional product in a specific period, and the long vehicle collection will be the mainstream.

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> the long vehicle is not the end point .

At present, the domestic collective doffing spinning long cars are being popularized and used at the stage of P.

In recent years, the spinning enterprises have begun to fully use the collective doffing long cars.

For example, the 60 thousand spindles of Dezhou Fuhua eco technology Co., Ltd. used the jwf1562 series of long and dry spinning spindles of Yuci.

In the spinning equipment of Anhui Huamao textile Limited by Share Ltd, the proportion of collective doffing spinning long car is 43.4%, which is also the main body of < a href= "http://www.91se91.com > spinning equipment < /a >.

spinning enterprises' input in equipment is to ensure that the development in the future will not be restricted by equipment.

Zhang Xin suggested that for the enterprises now using artificial doffing, the pformation of intelligent doffing cars should be one of the alternatives; if the funds are relatively tight, the pformation of intelligent doffing cars should be the first choice.

For some new projects, especially for new projects with relatively sufficient funds, collective doffing should be the first choice.

Speaking of the technology of collective doffing spinning long cars, Liu Yunguang, senior engineer of Shandong Liaocheng Huarun Textile Co., Ltd. believes that, < a href= "http://www.91se91.com" > textile machinery manufacturing enterprise < /a > we should further improve the pipe grasping device, improve the monitoring function of the vehicle head, enhance the reliability and stability of the operation of the equipment, and cotton spinning enterprises should also strengthen the equipment maintenance work in view of the characteristics of the long spinning frame, so that the domestic collective doffing spinning long car can play a better role in production.

although the collective doffing long spinning car is still in the stage of popularization and application, experts and equipment manufacturers in the textile industry have already cast their sights farther.

Liu Yunguang believes that from the development stage, the spinning machine with a collective doffing device is still a pitional type of cotton spinning development. It is an inevitable trend to speed up the reliability and stability of the equipment and improve its performance price ratio.

Tian Keqin said that Yuci will continue to focus on the long-term development of China's textile industry.

Especially in the case of big breakthroughs in the single machine of textile machinery, the focus of future textile automation will be the interconnection of automation among all the single machines, such as thin links, thick and thin links, intelligent pportation, and the interconnection of the whole workshop, the entire factory area, the whole company and even the whole group.

Zhejiang new type > a href= "http://www.91se91.com" > strong > textile /a > strong > R & D key laboratory Zhang Youhe: doffing car pformation cost-effective, < > >

ring spinning is the most widely used equipment in the spinning field at present, and spinning process is one of the most important processes in ring spinning.

Although the wages of workers have increased year by year and the cost of work and expenses has soared, the contradiction between recruitment and employment has been troubling the spinning enterprises.

The leaders of the spinning enterprises that were originally in low profit realized that we must make great efforts to reduce employment and ease recruitment difficulties through breakthroughs in equipment technology.

according to the relevant statistics, there are more than 100 million spindles in the ring spinning frame at present, but at present, only 10 million spindles are used in the automatic spinning doffing machine, and more than 90% spinning frames are still manually doffed.

Therefore, how to pform the conventional spinning frame to reduce the employment is expected by many domestic spinning enterprises.

According to the requirements of spinning enterprises, domestic textile machinery manufacturing enterprises have developed two technical measures to reduce labor in the conventional spinning frame.

pforming the conventional spinning frame (420~480 spindles / units) into a collective doffing spinning machine can reduce the doffing workers by more than half.

Using intelligent doffer car (such as S9 type intelligent doffing machine produced by Tongling song Bao machinery company), 10 bobbins can be pulled out / inserted at one time.

The doffing time of a 420 spindle spinning frame is about 90 seconds, and the head retention rate can reach more than 95% after doffing. The doffing time and the broken ends after doffing are better than those of artificial doffing.

According to the practice of many domestic enterprises, when spinning 18.5 to 29tex yarns, 2 sets of intelligent doffing machines (two sides doffing) can be used for 24~30 spinning frames, and the doffing of each doffing group is reduced from 6 to 2~3.

Intelligent doffer car has been widely used in Zhejiang spinning enterprises, reflecting better.

from the economic efficiency analysis of the two kinds of pformation measures to reduce the employment situation, it is found that the conventional spinning frame is used to pform the automatic collective doffing spinning machine, and the retrofitting cost is between 80 thousand and 100 thousand.

The total cost of the pformation of 10 thousand spindles (24 units) is 2 million yuan to 2 million 400 thousand yuan, and the cost is 200 yuan to 240 yuan per spindle.

With the intelligent doffing machine, the cost per 10000 ingot pformation (2 small machines per unit and the pformation of the electrical equipment running track of spinning frame) is about 700 thousand.

If each group can supply 30 sets of < a href= "http://www.91se91.com > spinning frame > /a > doffing, the pformation cost of 10000 yuan can be reduced to 600 thousand yuan, that is, the pformation cost per yuan is 60 yuan to 70 yuan, which is the 1/3 of collective doffing.

two methods can reduce the 1/2 to 2/3 of doffing workers.

From the analysis of reducing cost and quickening the investment recovery, the advantage of intelligent doffer is obvious, so it should be the first choice of conventional spinning frame.

It is understood that at present, more than 100 spinning enterprises in China have used the S9 intelligent doffing machine produced by Tongling song Bao.

In particular, the domestic spinning enterprises, such as Anhui Huamao, Jiangsu Dasheng, Shandong de cotton and Zhejiang Bailong, have used intelligent doffing machines, and have made some achievements in reducing labor and improving production efficiency.

However, the conventional spinning frame has changed to the automatic collective doffing device. At present, there are only textile machinery manufacturers in Yuci, such as Jingwei and East fly, and so on. Although the prototype has been launched, the cost of retrofit is too high for most enterprises to bear.

according to the relevant data, in the past three years, the number of spinning spindles in China has increased by more than 300 units annually, and now it has more than 10 million spindles, accounting for 10% of the total spindles.

As the number of spindles in traditional spinning frames is small (420 spindles / sets are standard), the use of artificial doffing per 10000 spindles should be matched with a group of doffing teams (6 in each group) with more employment.

Therefore, in recent years, the domestic spinning and weaving machine manufacturing industry has developed and produced the automatic collective drop fine yarn length machine on the basis of foreign advanced technology, which is generally welcomed by spinning enterprises.

The main way to reduce the employment of new or key technology pformation spinning enterprises is to use the long spinning machine with collective automatic doffing and matching with the pallet type automatic winding machine.

because of the cancellation of artificial doffing, the automatic collective doffing spinning long car reduces the labor intensity of doffing workers and greatly saves the doffing workers.

Every ten thousand spindles doffing workers reduced from 6 to 2, and three shifts saved 12 doffing workers.

At the same time, using automatic collective doffing, the doffing stopping time can also be shortened by 1~2 minutes compared with the original artificial doffing, which is conducive to the improvement of production efficiency.

Zhejiang province is one of the provinces that use spinning automatic collective doffing for a long time, and has many uses. At present, more than 1300 automatic collective doffing long machines are being used in more than 30 enterprises, and most of them are matched with the latest pallet type automatic winding machines.

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Miu Dingshu, Suzhou Textile Engineering Society: long distance car with high automation level

at present, there are two main types of automatic doffing of spinning frames: one is the automatic doffing of spinning long cars, that is, the collective doffing spinning long cars; the other is the automatic doffing pformation of the spinning short cars, including the traditional car doffing device, the spinning dice collective doffing device, and the intelligent car dropping device.

The traditional car doffing device mainly has two types: hand push doffer car and electric electromechanical integration doffer car.

To a certain extent, they have improved production efficiency and reduced the labor intensity of workers. They are characterized by simple structure, low investment and low power consumption.

However, because the car adopts the pre loosening plate and doffer to shovel and lift the structural form of the bobbin, it is easy to damage the spindle and the damaged tube yarn surface. The components are easy to walk and the overall stability is poor, so it is difficult for the enterprises producing high quality yarns to accept it.

spinning short car collective doffing device is mainly used for old machine pformation, and solves the problem of automatic doffing, so that every spindle of the whole spinning frame is pulled out at the same time and at the same time, the doffing efficiency is the highest.

The disadvantage is that the design and manufacturing accuracy of the original spinning short car is difficult to meet the requirements of installation of collective doffing, thereby reducing its reliability and stability.

The utilization rate of the spinning downer is low, and each spinning frame is equipped with a large area, with high manufacturing cost and high cost.

the essence of the intelligent falling car is the three-dimensional robot, which is an intelligent doffer car with automatic control of electromagnetic induction, light, electricity, gas and whole process.

Through photoelectric and displacement sensor detection signal to accurately locate mechanical action, after PLC processing, servo motor and pneumatic components are controlled, and the whole process automation of car movement, full tube, plug pipe and full pipe collection is achieved. It is an independent invention under unique conditions in China.

The utility model has the advantages of ingenious structure and high automation, and can remove the bobbin without damaging the yarn, so that the spinning machine with large number of ordinary spindles can realize automatic doffing.

compared with foreign countries, the domestic intelligent rolling car has the following innovative points: it can adapt to the doffing of the spindle and aluminum ingots; the tube drawing is simulated by manual rubbing, so that the bobbin is detached from the spindle in advance, and the spindle and bobbin are not damaged; the high-performance flying shear and the space circular interpolation control algorithm are applied; the highly reliable right angle three coordinate linear motion robot technology is applied; the multifunctional airbag type grasping mechanism is designed; and the efficient rotating tail yarn technology is designed.

I think that the automatic doffing device complies with and solves the current predicament of high labor cost and high labor cost, and realizes the function of machine safety work without catching fire, grasping the pipe without damaging the yarn and pulling the tube without damaging the ingots.

intelligent landing car can easily realize the pformation of the old machine, do not need special pformation of spindles and bobbins, and can be used in conjunction with any old and new ring spinning frames, and can adapt to the doffing of spindles and aluminum ingots.

The pformation of the collective doffing device of the spinning short car has saved the doffing workers compared with the intelligent falling car, but it has increased the maintenance workload and the expensive material cost.

The main cost of intelligent falling car is in grasping air bags and scissors and electronic components.

< a href= "http://www.91se91.com" > spinning short car < /a > the head dropping rate of the collective doffing device is relatively high, but if the spindle tail yarn is not cleaned in time, the retention rate will drop sharply.

The S9 intelligent doffer manufactured by Tongling song Bao Machinery Co., Ltd. has a unique method of retaining head, its hardware design and software support are well matched, and the tail yarns do not need special cleaning. The retention rate is better than that of artificial doffing.

enterprises that need to pform doffing devices should pay attention to analyzing whether they have the conditions for pformation and which kind of doffing form is more suitable for their own pformation.

The more high-tech and intelligent devices are, the more attention must be paid to reliability and stability.

In production, if there is a doffing equipment failure, it will cause the overall production rhythm disorder, so that enterprises can not afford it.

Therefore, many spinning mills also want to go to the intelligent doffer, but most of them wait and see.

Many enterprises worry that their management and technology can not keep up with them, but they are rather self defeating.

As a matter of fact, the use time of intelligent car is not long. Some enterprises are also reflecting the instability of electrical and mechanical devices.

intelligent doffing car is a pitional product which is less than a href= "http://www.91se91.com" > spinning automation < /a > production process. It can be used in conjunction with all kinds of ring spinning frames. It is in line with the requirements of China's textile industry upgrading and technological pformation, and has independent innovation, and has good prospects for popularization.

The digital control system is set up for the collective doffing equipment of spinning long cars, and the real-time monitoring of the tension change of spinning is achieved. By optimizing the spinning tension curve, regulating the spinning speed reasonably and achieving the best production efficiency, it is necessary to realize the automatic production of coarse and fine connection.