Different Views Of Textile Enterprises On Doffing Cars

< p > in the survey of the use of doffer car and collecting device, < a href= "http://www.91se91.com/news/index_c.asp" > spinning machine < /a > weekly selected 10 domestic spinning enterprises such as Jiangsu Dasheng Group Co., Ltd., Jihua 3542 Textile Co., Ltd., Shandong Liaocheng Huarun a href= "http://www.91se91.com/news/index_c.asp" > textile "/a" Co., Ltd., and conducted extensive surveys and in-depth interviews on the selection of doffing cars or collective doffing.

Some of these enterprises use doffing cars and collective doffing at the same time, some have already achieved collective doffing, others have just inspecting and haven't decided the direction of pformation.

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< p > we hope that these managers and technicians can pass on the thinking of equipment to the readers, hoping to provide some help for those enterprises who hope to save doffing employment through technical pformation.

It is believed that in the future, China's < a href= "http://www.91se91.com/news/" > textile machinery enterprise < /a > will also create more equipment and projects suitable for China's national conditions, such as doffing cars, so that more textile enterprises can go to semi-automatic or automatic roads.

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< p > < strong > the user enterprise participating in the survey < /strong > < /p >

< p > Jujube Wantong Cotton Textile Industrial Co., Ltd., Rizhao Huawei Textile Co., Ltd., Shandong Lian run new Mstar Technology Ltd, Shandong Liaocheng Huarun Textile Co., Ltd., Jiangsu Dasheng Group Co., Ltd., Shandong Hongcheng Group Co., Ltd., Anhui Huamao textile Limited by Share Ltd, Weishi Textile Co., Ltd., Jihua 3542 Textile Co., Ltd., Dezhou Fuhua Ecological Technology Co., Ltd. < /p >

< p > < strong > advocating collective doffing pie < /strong > /p >

< p > high starting point on equipment to solve employment problems < /p >

< p > enterprises know that collective doffing can save labor costs a lot, but the decision to make a real decision is still difficult.

It is not necessary to say that the cost of the ordinary spinning short car is high, the use scope is limited, and the equipment space is strict.

However, in the face of changes in market and labor costs, technological upgrading is the choice that spinning enterprises have to make.

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< p > Dezhou Fuhua: long cars will be the future trend < /p >.

< p > Dezhou Fuhua eco technology Co., Ltd. purchased 58 types of JWF1562 group doffing long spinning cars in Yuci, which was formed by 58 warp weft Limited by Share Ltd Limited by Share Ltd. The production capacity of 60 thousand spindles was 1500 tons per month, all kinds of < a href= > http://www.91se91.com/news/ > yarn > /a >.

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< p > Luo Shuhua, deputy general manager of the company, thinks that if the general enterprises have long spinning cars, they will be equipped with collective doffing devices. Now there are short cars in the enterprises, but not much.

It is understood that the volume of Dezhou Fuhua yarn production is relatively small, but the amount of variety modification is relatively large, so employment is more ideal than the automatic doffing spinning long car.

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< p > Luo Shuhua said that Yuci's fine spinning long cars are still relatively employed, and some enterprises employ 25~30 people.

Affected by the variety structure, Dezhou Fuhua employs about 60 people.

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< p > Luo Shuhua thinks that the doffer car produced by Tongling song Bao Machinery Co. Ltd. is relatively mature in China, but it is still being improved.

Compared with doffing cars, the technology of collective doffing is more advanced.

With the increase of labor cost, recruitment is becoming more and more difficult. In the future, collective doffing long spinning cars will be the trend of spinning equipment development.

After being investigated, Fu Hua of Dezhou decided to choose longitude and weft long cars in Yuci.

The cost of imported equipment is too high, in the domestic equipment, Jingwei Yuci has a relatively high market share and mature technology, and has formed a large number of production.

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< p > Wantong cotton spinning: in the future, we will also choose collective doffing < /p >.

< p > Jujube Wantong "a href=" http://www.91se91.com/news/ "cotton spinning < /a > Industrial Co., Ltd. has 130 thousand spindles production capacity, and recently purchased 10 Taishan Sai Hung Kai Polytron Technologies Inc collective doffing long spinning car.

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< p > Wantong cotton spinning has been purchasing various kinds of equipment since 2005. There are many kinds of spinning equipment, including all kinds of long cars and short cars.

Of these, 46 thousand of the equipment was purchased from Hongji, Shanxi.

At present, the company employs 85~95 people in 10000 spindles.

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Zhao P, general manager of the company, believes that the Shanxi Hongji spinning long car is stable and reliable in actual use, and well meets the requirements of the company's production and labor saving.

At present, the cost of employment is relatively high, and recruitment is also very difficult. The use of collective doffing long spinning cars can reduce employment, and the company is trying in this regard.

In the second half of the year, the company will prepare 50 thousand spindles of collective doffing long spinning cars. Now it is trying to use Shanxi Hongji's equipment. In the future, it will also make use of Hongji's equipment to upgrade the existing equipment of the company.

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< p > Zhao Si and said that according to the current equipment condition of the company, more than 400 workers will need more than 50 thousand spindles.

If the equipment is not upgraded, such a large-scale recruitment is very difficult, so the 50 thousand half of the second half of the year is to use the collective doffing spinning long car.

He also believes that the large-scale collective doffing pformation of existing equipment is not very realistic, mainly because the existing equipment specifications and ingot will increase the difficulty of pformation, so this is not considered.

It is understood that Wantong cotton spinning in the future ready to launch 100 thousand spindles spinning equipment, the next purchase plan is mainly collective doffing spinning long car.

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< p class= "MsoNormal" style= "margin: 0cm 0cm 0pt" > span lang= "EN-US" lang= "Microsoft";

< p > < strong > choose doffing trolley pie < /strong > /p >

< p > pforming existing equipment and realizing automation step by step < /p >

< p > < < a href= > http://www.91se91.com/news/ > > spinning enterprise > /a >, using doffing car is not new.

Today, with the increase of labor costs, doffing cars become an important technological pformation project to save manpower.

By comparing the labor and labor productivity before and after the doffing car, the leaders and technicians of the enterprise strive to improve the cost of the pformation, showing the advantages of the doffer car directly.

Some enterprises have also calculated the recovery cycle, which provides important reference for enterprises that are considering technological pformation.

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< p > sunshine Hua Wei: more than one year can be recovered and the cost of pformation is less than /p.

< p > Rizhao Huawei reformed the < a href= "http://www.91se91.com/news/" > spinning equipment < /a > in May 2013, invested 1 million 200 thousand yuan to buy 4 sets of Tongling song Bao S9 intelligent doffer.

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< p > before the pformation, the spinning process of Rizhao Huawei Textile Co., Ltd. mainly used manual doffer, and the cost of labor was greater, and the cost of labor and time was only 270 yuan / ton.

The doffing way of the original hand doffing is very harmful to the spindles such as spinning spindles, partition boards, leaf plates and so on. The yarn damage caused by the excessive extrusion of the yarn by the pullout disc is caused by the scissors cut and the yarn waste.

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After P pformation, the doffing work of the company has been greatly reduced, the yarn quality has been improved obviously, and the damage of the equipment has been reduced.

The cost of pformation has been reduced from 1 million 620 thousand yuan / year to 540 thousand yuan / year, saving more than 100 yuan per year, and the cost of retrofit can be recovered in 1 years.

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< p > the technical personnel of the company think that compared with the manual doffer, the intelligent doffer reduces the employment, reduces the labor intensity, improves the quality and reduces the consumption obviously.

With the development of society and the improvement of equipment automation, the use of intelligent doffer and collective doffing device will become the development direction of spinning machines.

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< p > Anhui Huamao: save doffing time about 30 seconds < /p >

< p > at present, in the spinning equipment used by Anhui Huamao textile Limited by Share Ltd, the collective doffing accounts for 43.4%, and the spinning machine equipped with doffing car accounts for 9.85%, and the collective doffing accounts for the majority.

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The P's doffer car was equipped in 2011.

Before the doffing car is equipped, a total of 16 people (4 teams and 4 teams) are required to manually shed the 112 spinning frames. After the doffing car is used, only 9 people are needed to doffing (3 people in the doffing group, 3 teams in total), and 2 maintenance workers (regular day shift management), which actually saves 5 people.

Before the installation, the 4 person sets of artificial doffing time is 160 seconds to 165 seconds, and after pformation, the doffing time of 3 people using doffer car is 125 seconds to 135 seconds, saving doffing time 30 seconds, accounting for 18.7% of doffing time.

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< p > > a href= "http://www.91se91.com/news/" > doffing car < /a > has the advantages of low price, small space occupation, saving labor by hand doffing, but also has the disadvantage of high failure rate.

Compared with collective doffing, doffing cars have longer doffing time and more employment.

When the fault occurs, the doffing trolley can easily bend the spindle, and also easily appear the feather yarn.

Compared with the doffing cars, the collective doffing takes up a lot of space. Some of the domestic collective doffing spinning machines have poor reliability and high failure rate, but their doffing time is short and labor is less.

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< p > Shandong Lian run: the doffing worker is half the < /p > before pformation.

< p > early July, the renovation of the 50 thousand spindle automatic doffing car of Shandong Lian Yun Xin Mstar Technology Ltd was completed.

A total of 3 sets (6 sets) of Tongling song Bao automatic doffing trolley were introduced. After the pformation, the phenomenon of full yarn falling down was eliminated, and the efficiency of spinning was greatly improved.

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< p > Shandong Lian run new Mstar Technology Ltd spinning process 100 thousand Siro compact spinning spindles, 50 thousand spindles using longway's 1008 spindles long car, 50 thousand spindles using Yuci Jingwei JWF1510 480 spindles short car in June this year to implement automatic doffing car pformation.

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< p > in terms of employment, after the pformation, the number of doffing workers in each shift was 6, and three shifts were 18, which was less than half that of the doffing personnel before the pformation.

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< p > Zhang Xin, deputy managing director of Shandong Lian run new Mstar Technology Ltd, said that after more than one month's use and observation, the doffing car has its own characteristics compared with the group's doffing.

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< p > compared with collective doffing, the doffing car has less investment and flexible use, so it is suitable for pformation on the basis of the original hand doffing spinning frame.

Because the distance between the two cars is generally small, which is not suitable for the collective doffing pformation.

But the pformation of the doffing car also has its own shortcoming. That is, a doffing car is usually responsible for the doffing task of nearly 40 spinning frames. Once a fault occurs, the doffing of many machines will be affected.

In order to avoid this phenomenon, the use of units must cultivate excellent maintenance technicians on the one hand, and spare parts on the other hand.

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< p > he thinks that the advantage of collective doffing is that the doffing speed is basically two times that of the doffing car compared to the doffing car. Once the colony fails, it will only affect the doffing of this unit.

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< p > but the collective doffing also has its own shortcomings. First, the investment is relatively large. Two, it is easy to rebound after the use of the yarn clips, so that the retention rate is reduced. Three, the doffing arms and control devices of the collective doffing must be corrected regularly. Otherwise, if the movement is not in place, it will be released in advance, causing the bobbin to fall, or the tube and the spindle are not right, causing the tube to be ejected and losing the function of extubation and intubation.

Automatic doffing cars and collective doffing devices are the products of improving efficiency and reducing employment. These two ways will exist at the same time for a long time in the future.

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< p > Shandong Huarun: < a href= "http://www.91se91.com/news/" > intelligent doffer > /a > market potential is larger than /p >

< p > Shandong Liaocheng Huarun Textile Co., Ltd. mainly uses two spinning collective doffing devices, a collective doffing device for F1520 spinning long cars, and a ring spinning S9 intelligent doffer for the domestic FA series spinning short car equipped by Tongling song Bao Machinery Co., Ltd.

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< p > Liu Yunguang, senior engineer of Shandong Liaocheng Huarun Textile Co., Ltd., said the F1520 spinning long car is a domestic spinning equipment with good technical performance, its electromechanical integration is high, and the collective doffing device is mature and stable.

Under the condition of high speed operation, the mechanical state is stable and the yarn quality is excellent. It is a better choice for the traditional cotton textile enterprises to further improve the quality level of the yarn, reduce energy consumption and reduce the employment through technical upgrading.

The domestic spinning machine long car with collective falling yarn is the best choice for cotton spinning enterprises. However, the long car made in China should strengthen the development of automation and intelligentization, and reduce the gap between the long spinning of the spinning machine and the foreign spinning machine.

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< p > Liu Yunguang believes that from the development stage, the long spinning machine with the collective doffing device is still the pitional type of cotton spinning development. To speed up the reliability and stability of the coarse and fine connection equipment and raise the cost performance will be the inevitable trend of the development of the spinning frame.

Textile machinery manufacturing enterprises should further improve the pipe grasping device, improve the monitoring function of the vehicle head, enhance the reliability and stability of the equipment operation, and the cotton spinning enterprises should also strengthen the equipment maintenance work aiming at the characteristics of the long spinning frame, so as to make the domestic collective doffing spinning long car play a better role in production.

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< p > Jiangsu Dasheng: the doffing trolley is gradually promoting < /p >.

< p > Jiangsu Dasheng Group Co. Ltd. in addition to the collective doffing device used by long spinning cars, other spinning equipment has been gradually promoting the use of doffing cars.

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< p > at present, the new spinning frames of the company are all equipped with collective doffing devices.

After using the Tongling song Bao S9 automatic doffing car, the employment reduced by half. The original doffing group of 4 people was reduced to 2 people in each doffing group, and the doffing ability of each group was also greatly improved while the employment decreased.

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The advantage of the < p > doffing car is to make full use of the original spinning equipment, with relatively small investment, and at the same time reducing the doffing ability, and reducing the employment rate by half.

The advantages of the collective doffing device are coordination of movement, low failure rate, short doffer time, low complexity of manual operation, and no need for doffing workers.

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< p > Jiangsu Dasheng mainly takes into account the use of the original spinning equipment and the relatively small investment cost, so we choose to gradually promote the use of doffing cars.

If the spinning equipment with a collective doffing device is to be retrofitted at once, the investment cost is too high for the enterprise to bear.

The spinning equipment of Jiangsu Dasheng will be phased out of short cars to develop long downed cars.

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< p > the technical personnel of the company believe that the collective doffing device is the direction of future development.

The doffing car is a pitional product. It is a method of filling and filling the company according to the current situation, rather than a thorough solution to the problem.

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< p > < /p >.

< p class= "MsoNormal" style= "margin: 0cm 0cm 0pt" > span lang= "EN-US" lang= "Microsoft";

< p > < strong > no action group < /strong > /p >

< p > wide research, market concern technology trend < /p >

The emergence of technology such as "P > doffer car and collective doffing device will give the enterprises who still use artificial doffing a chance to realize semi automation without replacing equipment.

Of course, many enterprises have investigated and tested doffer cars and collective doffing devices, but they haven't been reformed for various reasons.

Some spinning enterprise technicians made a comprehensive comparison of doffing cars and collective doffing devices, and analyzed the reasons for their failure to make improvements, and put forward some suggestions for doffing cars.

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< p > Hua Hua 3542: we must seriously examine the doffing trolley (< /p >).

"P > > China 3542 Textile Co., Ltd. is still using artificial doffing.

The company has been paying close attention to the development of a href= "http://www.91se91.com/news/" > doffing car "/a" and collective doffing and its popularization and application in the industry.

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< p > the company's staff concerned inspected the doffing trolley.

After investigation, the company thought that the ring spinning intelligent doffer mainly solved three major problems: first, to facilitate the pformation of the old machine without changing the spindle and bobbin; the two is to serve multiple doffing, making maximum use of the doffer efficiency; three, it completely replaced the manual pulling and insertion of doffing links, and reduced the labor intensity of doffing workers.

The machine has the advantages of simple operation, flexible operation and low cost.

The two doffer is a set of doffing and doffing, which can serve the doffing of many different spinning frames.

The machine can completely replace the traditional manual pulling and inserting bobbin, and basically realizes the automation of the whole doffing process.

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< p > collective doffing long cars have developed rapidly in recent years. The doffing time is 3~4 minutes, and the doffing is automatically circulated. No one is waiting time. The yarn retention rate is higher than 97%, which can increase output by 8% to 15%. It is equipped with simple mechanical structure, precise PLC electrical system and air pressure control, fully automatic operation, easy operation, low failure rate, equipped with man-machine interface failure message, easier maintenance and maintenance, and 10000 yuan per 10000 can save 6~9 labor.

The spinning enterprises should choose suitable doffing methods according to their own conditions, so as to improve efficiency, save labor and reduce costs.

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< p > Shandong Hongcheng: it is considering self pformation "/p".

< p > at present, Shandong Hongcheng Group Co., Ltd. is still using hand doffing, neither equipped with doffer car nor equipped with collective doffing device.

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< p > the relevant personnel of the company have also investigated the doffing cars and collective doffing. According to the analysis of the situation, doffing cars have the advantages of one time pformation and less investment, long cars and short cars can be reformed and have wide adaptability, but there are also disadvantages such as a little more labor and a high failure rate compared with the collective doffing.

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< p > Zhao Wei, deputy general manager of Shandong Hongcheng Group Co., Ltd., said that the spinning production capacity of the company is not expected to increase again, and the next step will be automatic doffing pformation.

This is mainly due to the fact that the failure rate of the automatic doffing car is still a little higher.

At the same time, he also believes that the new production capacity will generally adopt automatic doffing device, and the products with higher grade will also adopt collective doffing, while the lower grade products will usually adopt doffing cars.

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< p > Weishi Textile: it is suggested that the doffing trolley develop towards a lightweight development < /p >.

< p > at present, the spinning machines used by Weishi Textile Co., Ltd. are mainly short cars with 420 spindles and 480 spindles, including FA506, FA507 and FA1508.

The company only installed compact spinning device on the original spinning frame, and there was no other modification.

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< p > Weishi Textile Co., Ltd. has done some experiments on doffing cars, but the test results are not very good, mainly due to the low head retention rate after doffing.

Although the use of doffer car can reduce the use of labor, it has failed to achieve the intended purpose, so it has not been promoted.

The company feels that the collective doffing is still better, but there is a large yarn hairiness.

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< p > Weishi Textile Co., Ltd. < a href= "http://www.91se91.com/news/" > spinning equipment < /a > the next step is to go to the collective doffing long vehicle development.

The company technicians suggest that the doffing car can be set up to be lighter and at the same time improve the retention rate.

They also believe that the trend of development will be better after collective doffing.

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