What Should We Do If The Sewing Machine Breaks The Jumper?

< p > jumper is a phenomenon of a href= "http://www.91se91.com/news/index_f.asp" > sewing machine < /a > in sewing process, because the hook at the bottom of the machine tool can not pick up the face line or the surface line is slipped after being taken off, and can not form a continuous line step by step.

This is mainly due to the inconsistent movement time and movement position between the needle and the hook.

Of course, it may also be that the needle can not form a coil and lead to jumper.

Jumpers appear. The following reasons can be found: < /p >

< p > < strong > 1, pressfoot problem < /strong > < /p >

< p > check whether the presser foot is installed too high and whether the cloth delivery speed is too fast.

The pressure foot is installed too high, so that the presser foot pressure to send fabric is insufficient. At this time, the fabric will oscillate with the presser foot, so that it can not compress the surface line to form a coil. The presser foot cloth delivery speed is too fast. When conveying the fabric, the line will be taken away quickly with the fabric, and the hook can not hook the surface line.

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< p > < strong > two, machine needle problem < /strong > < /p >.

< p > (1) check whether the line is wearing wrong or wear a certain line.

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< p > (two) check whether the needle is properly installed, for example, the long slot of machine needle is reversed or installed skew.

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< p > (three) check whether the needle type is applicable, the height of the needle bar adjustment is accurate, and check whether the needle is attached to the top of the needle bar.

If the needle is installed too high or too low, it will affect the hook picking.

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< p > (four) check whether the needle is distorted.

When a twisted needle is used to stitch, the hook is not able to hook the thread because the coil formed is far away from the hook.

A slightly curved needle is difficult to identify directly with the naked eye, and the needle can be rotated on the platform to distinguish it.

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< p > (five) check whether the movement of the needle is consistent with the time of the hook movement.

When the movement time of the needle and hook is fully matched, the hook can accurately pick up the suture.

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< p > (six) check whether the needle is suitable for the thickness of sewing thread.

A large needle with a fine sewing thread will also lead to jumpers.

This is because large needle needles are longer and wider, and the holes of the piercing fabrics are larger, so that the fine sewing thread has larger space movement. If the range of hook hooks is exceeded, there will be jumpers. < /p >

< p > (seven) check whether the needle eye of the needle is blocked due to melting and bonding of the thread of sewing thread of the chemical fibre, so that the suture can not be pported normally, and the coil can not be formed.

Custer < /p >

< p > < strong > three, sewing thread problem < /strong > < /p >.

< p > (1) check whether the sewing thread is too thick, uneven in thickness or soft in stitches.

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< p > (two) check the tension of the surface line is too tight.

The tension on the surface is too tight. The needle ring formed under the machine tool is too small to hook.

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< p > < strong > four, other problems < /strong > < /p >

< p > (1) check whether the hook is defective.

Defective hooks cannot be sutured.

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< p > (two) check whether the hole of the needle plate is too large.

Many manufacturers do not replace the matching needle plates in time when they produce small materials.

The larger needle plate hole causes the fabric to be carried or removed from the round hole by the needle, which can not compress the sewing thread to form a coil, which may also lead to jumpers.

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< p > (three) to check whether there are silt dust and dust in the feeding tooth and shuttle bed, attention should be paid to keep it clean and clean, so as not to affect the formation of line steps.

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< p > < strong > > a href= "http://cailiao.sjfzxm.com/Matertial/show/Garment_Accessories.aspx" > broken line < /a > /strong > /p >

< p > < strong > 1. Sewing thread problem < /strong > < /p >

< p > (1) check whether the quality of sewing thread is qualified.

Moldy, metamorphic or nodular sutures are most easily disconnected.

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< p > (two) check whether the sewing thread selected matches the machine needle.

Too many rules for sewing thread are not easy to break because of the lack of tough force. The sewing machine is too thick for sewing thread, so the sewing thread can not be cut through the pin hole smoothly.

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< p > (three) check if the tension is too tight.

Tension is too tight and easy to break.

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< p > (four) check whether the pinhole of the inspecting machine is silting up debris, causing the sewing thread to be pported unsmoothly and fractured.

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< p > < strong > two, machine needle problem < /strong > < /p >.

< p > (1) check whether there is a phenomenon of stitching due to needle hot fusing, especially when using chemical fiber suture, because of the high speed running of the sewing machine, the needle repeatedly piercing the fabric to generate heat by friction, so that the melting point of the lower chemical fiber suture is fusing.

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< p > (two) check the hook line location is appropriate.

The hook is too close to the pinhole and easily breaks the stitches when taking the thread.

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< p > < strong > three, other problems < /strong > < /p >

< p > (1) check whether the needle and needle plate are firmly installed.

Loosening machine needle or needle plate will make the needle and needle plate touch each other and rub the section line.

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< p > (two) check all the line passes (including over coil, needle eye, hook, needle hole, foot pressing hole, etc.) whether there is bending or defect, avoid sewing thread being broken.

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< p > (three) check whether the bottom line is full or uneven, the bottom line is too full or the winding is uneven, the bottom line pportation is not smooth, and easy to cause the bottom line to break.

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< p > in addition, the operator's gesture is not good or the rhythm of the vehicle is not rhythmic, it will pull the fabric to cut the face line to the cloth teeth, or make the pick hook up and down motion uneven and pull the section line.

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< p > < strong > Solution > /strong > /p >

< p > to solve the problem of < a href= "http://cailiao.sjfzxm.com/Matertial/show/machine_index.aspx > > jumper > /a >, break line, we should take different ways to deal with the causes of jumper and broken line: < /p >

< p > 1. The solution to jump line and broken line caused by needle problem is < /p >

< p > (1) needles without blunt needle tip should be checked regularly and replaced in time.

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< p > (two) select the machine needle with special surface treatment.

The machine needle coated with Teflon film can reduce the friction resistance between the fabric and the fabric, inhibit the high heat generated by the needle, prevent the hot melt fusing of the needle and fuse the chemical fiber thread, avoid jumping and disconnecting.

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< p > (three) a blow dryer is installed beside the machine needle to accelerate the heat dissipation of the needle.

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