A sewing machine is a machine that uses one or more sewing lines to form one or more threads on the sutures, so that one or more layers of sutures are interwoven or concocted. However, the sewing machine has been in service for a long time and there are some failures, and the following is a look at the common malfunctions of the sewing machine and the handling methods。
Fault in delivery
1. Fault feature: crucified sutures。
Reasons for the product: loss of needles, excessive bottom-line tension, inappropriate agency adjustment。
Method of processing: replacement of new needles, spin-off screws, readjustment of differential structures。
2. Fault characteristics: the sutures are “gnawed” below them to form glyphs。
Output cause: too sharp for delivery and too high pressure for foot pressure。
Method of treatment: the tip of the teeth can be sharpened with oil and stone, and the screws can be condensed。
3. Frustration feature: the sound of fibres is interrupted by a sudden sew of wired hair below the suture。
Output cause: a needle is broken or too blunt。
Method of disposal: replacement of needles。
Fault characteristics: sutures are stagnant。
Output cause: too low for delivery of teeth and too high pressure on feet。
Method of handling: lift the teeth up and press the screws。
5. Fault feature: sutures come and go。
Output cause: too high for delivery。
Method of processing: adjustment to delivery of butooth。
6. Fault characteristics: the stitches cannot be sewn back。
Reason for product: move the cam。
Method of processing: repositioning the cam。
7. Fault feature: sutures slash irregularly。
Reason for the product: the delivery of the teeth is crooked or the delivery of the screws loose。
Method of handling: correct the teeth and tighten the screws。
There's trouble with the trail
1. Fault feature: the surface is floating。
Output cause: unintroduced pressure on the patch。
Method of handling: tighten the wires and increase the cotton cord tension。
2. Fault feature: the bottom line is floating。
Output cause: too loose。
Method of handling: tightening the screws of the heart and increasing the bottom-line tension。
3. Fault feature: short needle distance。
Product cause: too low pressure。
Method of treatment: tightly press the screws。
4. Fault characteristics: each needle below the suture is covered with a towel line。
Reason for product: delivery does not correspond to pick-up action and delivery is fast。
Method of processing: adjust the delivery of cam screws so that the delivery is in tune with the pick-up action
Operational failures
1. Frustration feature: head rotation sunk。
Output cause: wrong lubricating oil, especially vegetable oil. There's too much dirt in the bed, too many screws, too tight on the cone。
Method of treatment: refilling sewing oil with kerosene when washed. Cleaning the shuttle bed, decorating the screws, ensuring a certain gap。
2. Fault feature: half-turned, half-sliding or one-point demurrage. The lined-wire operation in the shuttle bed is not only semi-silent but is accompanied by severe shaking and noise。
Output cause: the delivery of tooths in high positions or the accumulation of dirt within the teeth allows them to come into contact with needleboards when they rise。
Method of handling: cleaning up the bed and adding a small amount of sewing oil. Clean or lower the teeth. Replacing or calibrating needle poles。
The head is stuck。
Output cause: too close to front or back, touch the pinboard. The needle poles were installed too high and the needles were caught in the shell。
Method of processing: repositioning the delivery of teeth, re-reconciled needles, adjusted needle heights。
Fault feature: noise comes from needle bodies。
Output cause: needle poles, needle rods, small poles, etc., are too worn out. Little screw pin screw loose。
Disposition: replacement of new items, tightening。
5. Fault feature: noise comes from the delivery agency。
Reasons for the product: large point-top cone screws are worn or loosed, handing out pins with teeth, and needle-spacing agencies are loose。
Method of treatment: grinding or recalibrating, recalibrating, recalibrating or spiraling。
6. Fault feature: noise from a shuttle。
Output cause: scrambling and scrambling causes great gaps, excessive gaps and shocks between scrambling and scaffolding。
Disposition: replacement of new items, adjustment or replacement of new items。
7. Fault feature: general noise。
Output cause: wear and tear of upper, lower and lower axes, resulting in up and down movement and lack of oil in the machinery。
Method of disposal: replace new pieces or adjust the gap between the upper and lower axes, be careful to maintain and refuel on time。
Break needle
1. Fault feature: thread break。
Reason for the product: the needles are too thin or bent, the suture thickness is uneven and the needles move too much。
Treatment: new needles, adapted to slow-down stitches and hand help delivery, new needles or needles。
2. Fault characteristics: short and continuous needles, long needles。
Reasons for the product: delay in delivering the teeth, inadequate delivery of the teeth, needles to the back end of the teeth and broken needles。
Method of treatment: the positioning of the cams should be repositioned to reduce the length of needles or change new cams。
3. Fault feature: the needle is broken below the needle plate。
Reasons for the product: low position of needles, percussion of needles, unequipped shuttle beds, percussion needles, too small or too large to fit between the end of the pins, and percussion of the pins or loss of their protective needles。
Method of treatment: repositioning needles or needles, re-loading, adjusting the faults between the end of the liner and the needle。
4. Fault feature: the needle is broken on the plate。
Reason for the product: too much hand-punching suture caused the needle to bend, the snail to fall loose, the slashing of the ankle to the slash needle, the transfer of the cam position led to the suture to pull out the needle, and the hardness in the suture caused the needle to break。
Method of handling: enhance operational practice, correct the pressure on the feet and tighten the screws and adjust the position of the cam screws。
Break
1. Fault feature: a first-line breaker with a cut。
Output cause: air needles are retrofitted or needles are not fully fitted, resulting in low needles. Sutures are rigid, needles are thin or pressured。
Method of handling: check if the needles are installed and the pins link the screws loose. Replace the needle or adjust the pressure on the foot。
2. Fault feature: the stitches are curly at both ends of the breakhead and have short-shaves。
Output cause: overstretching or stitching occurs when sewing. The sutures were squeezed into the shuttle-guided slot. The sutures are corrosive, of poor quality, and have thorns in the cross-line。
Method of handling: switching the wire pressure and checking the line lines to remove the fusion. Check the wear and tear of the shuttles and, if necessary, replace them. Sand light across the line and replace the stitches。
3. Fault feature: thickness of the lower part of the suture, inability to form needle spacing and break the linehead。
Output cause: low delivery of teeth and cut-off of sutures. The delivery and the choreography were punctured. The pressure on the feet, loose needles, hinders the operation of sutures。
Method of handling: lifting of teeth, adjusting of the position of the cam, tightening of the foot pressure and pin screws。
4. Fault feature: sudden line break in sewing and curve fluctuations in the face。
Reason for product: the shuttle position is not covered by a line. The end-of-the-carb is locked or suddenly moved in sewing. The quality of the shuttle is too long or the elliptical of the heart。
Method of treatment: repositioning of the shuttle, re-installation of the shuttle and re-loading of the cabbage。
Fault feature: sudden break in sewing. It's an ellipse of inner diameter。
Output cause: consorture failure, an ellipse of inner diameter, resulting in a failure of the persorption. Snails are too tight, so the skin pressure is too small. The shuttles were over-filled or too loose. The bottom line is coarse and has knots that prevent the bottom from passing through the heart spring。
Method of disposal: replacement of holsters, corrosive screws, re-routing of the rimline, replacement of bottom lines。
Jump
1. Fault feature: impressed。
Reason for the product: too short a line, too high a line, too high a needle, and too low to connect the loop。
Method of handling: stretching the line, checking whether the bottom line is stuck and excluding it. The needle connects the axis to a solid screw to move up the pin, and it should drop the pin, reset the needle, tighten the nail。
2. Fault feature: needle movement。
Output causes: needle holes, needles worn, needles attached to bolts loosely, needles moved。
Method of treatment: switching needles, or selecting new needles and re-reading them; and tightening the screws。
3. Fault feature: several needles jump through a thread。
Output cause: rotation wear, too sharp, too high or too low。
Method of disposal: swing, adjusting the height of the needle or the height of the needle, re-reading the needle。
4. Fault feature: no continuous jump line or stitch。
Output cause: poor or distorted needles do not produce normal thread rings. The needles are too high to fit the threads and the stitches are not properly matched. The spare parts, such as swinging beds, are severely worn out or folded on a permanent basis。
Method of processing: replacement of qualified needles or calibration needles. Adjusts the height of the needle or needle. As a general rule, swinging or shuttle beds can be replaced and overhauled as necessary。
5. Fault feature: threads are thin, threads are thick。
Output cause: insufficient pressure on feet, too thin a needle, severe wear and tear of parts such as wired structures。
Treatment: adjustment of foot pressure, exchange of needles, replacement of spare parts and repair。
6. Fault characteristics: threads thick and thin。
Reason for the product: the perforation of the plate is too large, the perforation is too thick, the pressure on the base of the foot is worn or the pressure on the foot is too small。
Method of treatment: replace needle plates, change needles, switch feet, switch feet, or adjust feet pressure。
