What Is Industrial Sewing?

Industrial sewing machine (industrial sewing machine) is a sewing machine suitable for mass production in a sewing factory or other industrial sector. Apparel, shoes, hats, and other factories that require sewing machines use industrial sewing machines.

Industrial sewing machine

Industrial sewing machine (industrial sewing machine) is a sewing machine suitable for mass production in a sewing factory or other industrial sector. Apparel, shoes, hats, and other factories that require sewing machines use industrial sewing machines.

Chinese name

Industrial sewing machine

Foreign name

industrial sewing machine

Suitable for

Sewing factory

Main origin

Taizhou

inventor

1. Take-up mechanism

When the sewing machine is sewing, in the process of forming a stitch, it functions as a mechanism for conveying and recovering the needle thread and tightening the stitch. It can be divided into the following:

1. Cam thread take-up mechanism: a mechanism that drives the movement of the thread take-up lever by the cam

2. Connecting rod thread take-up mechanism: a mechanism that drives the movement of the thread take-up mechanism by a four-link mechanism

3. Slide bar thread take-up mechanism: a mechanism that drives the movement of the thread take-up mechanism by a crank slide bar mechanism

4. Rotary thread take-up mechanism: one or two discs or other shaped components equipped with thread take-up pins, a mechanism for performing a thread take-up motion

5. Needle bar thread take-up mechanism: The thread take-up or thread clamping device on the needle bar is fixed, or the thread take-up bar is directly fixed on the needle bar.

Feeding mechanism

When the sewing machine is sewing, a mechanism for delivering sewing material is performed. It is classified as: forward feeding mechanism; backward feeding mechanism; horizontal feeding mechanism; lower feeding mechanism; upper feeding mechanism; needle feeding mechanism; upper and lower composite feeding mechanism; upper and needle composite feeding mechanism; needle and lower composite feeding mechanism ; Upper, needle and lower integrated feeding mechanism; differential feeding mechanism; roller feeding mechanism.

Thread hooking mechanism

When the sewing machine is sewing, after the thread loop formed by the needle with a guide thread through the sewing material, a mechanism that hooks the loop to form a stitch. The main classifications are: rotary thread hook mechanism; rotary hook thread hook mechanism; rotary hook thread hook mechanism; swing hook thread mechanism; shuttle hook thread mechanism; looper hook thread mechanism; thread hook hook mechanism mechanism.

Take-up lever stroke

The distance between the two limits of the threading hole on the thread take-up rod in one cycle of motion

V. Needle bar stroke

The distance between a point on the needle bar between the two extreme positions of the needle bar movement

Six, sewing speed

The number of needle punches per minute of the sewing machine, unit: needle / min, the maximum sewing speed: the maximum number of needle punches that the sewing machine can withstand under normal sewing conditions; the working sewing speed: the sewing machine can withstand continuous safe operation under normal sewing conditions Maximum sewing speed.

Seven, thread

Sewing thread. Generally made of cotton thread, chemical fiber thread, metal wire, etc. The main categories are: needle thread; shuttle thread; looper thread; stretch thread; cover thread

Stitches

Each time the sewing machine needle passes through the sewing material, it is a unit formed by one or more stitches that are self-connected, mutually or intertwined on the sewing material.

Nine, presser foot

A member that applies pressure on the surface of the sewing material. The presser foot can be divided into flat sewing machine presser foot, overlock machine presser foot and special machine presser foot according to its sewing machine performance. Presser foot is divided into ordinary presser foot and special presser foot according to its function. There are many types of special presser feet, such as crimping foot, feed foot, double needle foot, etc.

Ten, material trimming device

During sewing, cut off the sewing device. There is a device for cutting off the waste edge of sewing material in overlock sewing machines and lockstitch sewing machines with knives. There is a device for cutting waste leather in a sewing machine for sewing leather. The automatic sewing machine includes a device for cutting sewing materials such as a thread tape and a decorative tape.

11. Punching winder

Device for making holes in the sewing material during sewing. A buttonhole opening device is provided in the buttonhole machine. There is a device for making pattern holes in the embroidery machine.

Twelve other devices

Other devices include: automatic wire-drawing device, automatic thread-cutting device, automatic needle-stop device, oil suction device, lubrication device, etc.

The sewing machine we are talking about here is mainly sewing equipment, which can be divided into: general sewing machine, special sewing machine, decorative sewing machine.

After 10 years of development, China's sewing machinery industry has risen rapidly after arduous development, and has established the status of a world sewing machinery powerhouse in one fell swoop.
From the end of the 1990s to 2007, China's sewing machinery industry has been at a high-growth development stage. By 2007, the output of domestic sewing machinery products had reached an unprecedented "peak" in the industry.
In 2002, a document released by the China Sewing Machinery Association at the China International Sewing Equipment Exhibition (CISMA) that year showed an important message --- China became the world's largest producer and consumer of sewing equipment country. According to statistics from the China National Sewing Association Information Center that year, there were nearly 500 sewing equipment and parts manufacturing enterprises of various sizes and above in China, with an annual output of 8 million sewing equipment and an annual export of more than 400 million US dollars.
In the past 10 years, the scale of China's sewing machinery industry has continued to expand. According to statistics, at the end of the "Tenth Five-Year Plan" period, China's annual output of sewing machinery accounted for 71% of the world's total output of sewing machines. By the end of the "Eleventh Five-Year Plan" period, this proportion has increased to 80%. The 45% at the end of the Tenth Five-Year Plan increased to the current 59%, and the industry continued to gather in mainland China, which promoted the development and transformation and upgrading of downstream industries, and enhanced its international status and influence.
As the upstream industry of clothing, luggage, and other industries, the sewing machinery industry is also closely related to improving people's living standards and achieving a well-off society. During the "Eleventh Five-Year Plan" period, the industry development has experienced turbulence. The first two years have maintained a sustained and rapid growth momentum, but since 2008, it has been affected by the dual impact of the outbreak of the international financial crisis and the adjustment of the industry's own development cycle. Economic indicators have shown a rapid decline for two consecutive years, falling into a trough in the past 10 years.
However, through active response and adjustment, the technological innovation capabilities and risk resistance capabilities of industrial enterprises have been enhanced to varying degrees. Especially with the gradual recovery of China's economy from the second half of 2009, China's sewing machinery industry Since the quarter, it has gradually got rid of the downturn and has shown a strong and continuous recovery. The scale of production and sales has rebounded rapidly. In particular, in 2010, the industry showed a recovering high-speed growth. The annual output value reached a record high, and the output was close to the highest level in the industry's history. At the same time, the pace of structural adjustment and transformation and upgrading has significantly accelerated, and the effects have begun to show.
From the perspective of import and export data, the total import and export trade of China's sewing machinery industry in 2011 broke a record high. According to the statistics of the General Administration of Customs, the total import and export trade of sewing machine products and parts in China in 2011 was 2.41 billion US dollars, an increase of 21.72% over 2010. Among them: exports of 2.0 billion US dollars, an increase of 24.21%; imports of 410 million US dollars, Increased 4.19%; the trade surplus was US $ 1.59 billion. The export of the industry maintained a high level throughout the year, and the monthly export volume broke the highest historical record of monthly export volume three times in a row. In July, the export volume reached US $ 205 million.
2011 was the beginning of the "Twelfth Five-Year Plan". The China Sewing Machinery Association identified it as "the year of industry quality catching up" and released the "Twelfth Five-Year Plan for the Development of China's Sewing Machinery Industry". Adhering to the overall development thinking of "innovation-driven, transformation and upgrading, stable growth, quality first", it points out the direction for the industry to achieve a sustainable development strategy for a strong country.
According to the "Twelfth Five-Year Plan for the Development of China's Sewing Machinery Industry", as of the end of the "Eleventh Five-Year Plan" period, there are about 830 sewing machine manufacturers in China (including foreign-funded enterprises), of which sewing machines are complete 620 production enterprises, non-sewing sewing equipment manufacturers (Note: Mainly refers to other sewing, inspection, cutting, spreading, ironing, gluing, needle detection, hanging, laser, etc. Manufacturing equipment) is about 210, and there are more than 1,000 parts manufacturing enterprises, mainly distributed in 6 major production areas including Beijing, Tianjin and Hebei, Shanghai, Jiangsu, Zhejiang, Guangdong, and Shaanxi. During the "Eleventh Five-Year Plan" period, the industry has completed a cumulative output of 74.96 million units, an output value of 193.5 billion yuan, a profit and tax of 9.26 billion yuan, a cumulative export of 53.929 million units, and an export value of 7 billion US dollars.
During the "Eleventh Five-Year Plan" period, the total economic volume of the industry kept growing, the quality of economic operations continued to improve, and the value-added of export products increased rapidly, achieving an average annual economic growth rate of 11.5%; major breakthroughs in product structure adjustments, such as mechanical and electrical integration The proportion of manufacturing equipment increased from 2% at the end of the Tenth Five-Year Plan period to 25.04%. The proportion of computer lockstitch sewing machines to the total output of lockstitch sewing machines increased from 5% to over 36.5%. The annual output of special industrial sewing machines accounted for the total of industrial sewing equipment. The proportion of volume has been increased from 3% to 9.5%; the corporate structure has been further optimized.

First, check whether the machine head is bright, whether there are paint peeling and bumps, whether the plating of the needle plate, push plate, panel, upper wheel and other plating is intact; whether the platen is straight, and the paint has cracks or local discoloration; Whether the frame is broken, paint-shedded or twisted; whether the clearance between the upper and lower shafts and the needle bar meets the standard requirements.

2. Remove the belt, lift the presser foot, and gently turn the upper wheel to see if it can run freely and whether the needle moves up and down in the middle of the hole in the needle plate.

3. Whether the machine sounds soft when turning.

4. When stepping on or sewing, first try sewing with two layers of thin cloth to check whether the stitches are flat and even. Then try sewing with the original fabric again to see if the stitch length can reach 3.6mm, there is no phenomenon that the seamless material does not go or the sound is abnormal.

Five, more specific testing should be in the presence of sewing machine maintenance workers.

"Buy sewing machines in Taizhou" has become the first choice for domestic and foreign manufacturers. According to statistics, the annual output of China's sewing machines accounts for three-fifths of the world's total output of sewing machines, and the output of Taizhou sewing machines accounts for one-third of China's. That is, for every five sewing machines produced in the world, one is manufactured by Taizhou Taizhou became a veritable world base for the production of sewing machines.

At the same time, Taizhou gathered a group of sewing machine enterprises, and initially formed a sewing machine industry group. In the test of the market, a number of well-known companies have emerged. Three of the top five national sewing machines are located in Taizhou.