2. Preparation before operation:
1. Pull up the presser foot to avoid friction between the presser foot and the needle plate.
2. Check the fastening of the fixing screws of each part.
3, each part of the fuel point plus lubricants.
4. Shake the guide plate without any clicks.3. Threading and lead:
1. Take the bobbin case and the bobbin: Swing the guide plate, raise the needle to the high position, use the tweezers to remove the shuttle, lift and push the upper needle plate, and use the tweezers to remove the shuttle.
2. Bobbin winding:
Pull down the winding machine, pull out the thread around the bobbin and insert it into the bobbin for several weeks. Shake the guide to be wound around the bobbin and pull it back.
3. The spindle is first passed through the thread of the shuttle, and the bobbin is inserted into the shuttle, and then the thread is threaded into the upper thread to pull the thread.
4. The position of the shuttle is the hand guide. When the needle is about to rise, the tail should be aligned with the needle slot, and the thread is pulled out 2-3 inches long. Press the needle plate in the half-moon slot of the shuttle, then close the upper needle plate. Shake the large plate to bring the bottom thread to the needle plate. If the position of the shuttle is placed incorrectly, the bottom thread cannot be taken at the same time.
5. Wear the upper thread:
Shake the guide, raise the needle to the high position, and lower the presser foot. Pull the wire end in the online roll, pass through the middle shaft wrap spring, pass the wire clamp and the wire frame, pass through the wire spring and the wire pick, enter the needle bar hole, and then pull the wire through the pin hole to pull out the wire head 2-3 Inch.
6. Pull the upper thread of the upper thread (not too tight), use the right hand to shake the guide, so that the needle thread passes through the hole of the needle board to draw the bottom line, and the bottom line together makes the machine press the foot gap to the left rear.The relationship between the bottom line and the quality of sewing:
1. Identification of stitches.
2. Adjust the pressure of the bottom line of the surface. Rotate the upper thread tightly. When the use time is too long, the bottom line will appear too fast. At this time, the thread can be threaded or the bobbin can be changed. The bottom line is tight and the thread take-up lever will be taken. The fixing screw is relaxed, the needle picking rod is pushed backwards, and then the rotation of the bobbin is checked for flexibility. The sanding of the threading nut is used to tighten the adjustment of the stitch length of the crimping nut.
5. Adjusting the stitch length
Since the stitch length must be adjusted due to the different sewing materials, when the stitch length is selected, the stitch length screw only needs to be loosened. When the stitch length is short, and the upward movement is reversed, it is sufficient.
6. Adjustment of presser foot pressure
When the pressure is increased when the seam is thickened, the presser nut of the presser spring can be tightened to increase the tension of the tension spring, which increases the pressure of the presser foot, and vice versa.7. Handling of the needle and the matching of the sewing material:
1. Turn the guide disc to raise the needle bar to the high position, loosen the needle collet screw, remove the old needle, insert the new needle flat into the groove of the needle bar, and when the needle touches the needle positioning position at the bottom of the groove, then Tighten the screws.
2. Needle and sewing material: Generally use the 18th needle, sewing all kinds of rubber shoes and edging shoes and other thinner type 14-16 needles, sewing all kinds of shoes and canvas and other thicker with 18th needle.
8. Soto position adjustment: (many people will not be able to draw the bottom line, the reason is that the position is misplaced)
When the shuttle is disconnected, the tail of the shuttle must be aligned with the needle slot. The difference is a lot. The position of the shuttle is misplaced. If it is not right, adjust it. Loosen the link and the link linkage screw and move the lever to make the shuttle. Just align the tail with the needle groove and tighten the screw.
9. Adjustment of the needle bar up and down: In the needle movement phase, the pinhole hole should be aligned with the plane of the shuttle bottom plate, otherwise it should be adjusted by loosening the screw on the small connecting rod shaft, moving the needle bar to the correct position and then tightening.
QINGDAO EVERISE INTL Co., Ltd. Has specialized in manufacturing and exporting construction hardware for more than 16 years. We supplying high quality level various kinds of key blanks, locks, hinges, slides and Edge Banding etc. With years of experience in the hardware industry, our products are sold to more than 20 countries and regions around the world. The stable production capacity, superior quality, reliable credit standing and 24-hour rapid response mechanism insure optimized services to customers. Our mission is to satisfy our customers by providing high quality products at competitive prices and by offering outstanding customer service. In the past few years, we have been received best trust from our buyers. Excellent product quality and patient after-sales service is our companys service tenet. We are willing to unfold the great brilliance together with you. Please contact us for any further discuss.
Q: Which payment terms you accept?
A: T/T, L/C Paypal and etc.
Q: How you make sure the quality?
A: A. We will consult on your requirement, and recommend suitable products to you.
B. Before production, we will sent samples to you
C. During production, we will always check quality, package, delivery etc.
D. Before package, with QA to check everything
E. After shipment, we will consult with you about the satisfaction.
Q: How to make sure the delivery date?
A: A. Before production, we will see we can met your time or not.
B. After your payment, we start our preparing material immediately.
C. During production, will inform you the production schedule.
D. Before shipment, we will inform you to pay balance on time and booking immediately.
Q: For service?
A: 1) All enquires will be replied with in one working day.
2) Professional sales team will reply your email within 24 hours.
3) All the goods will be inspected 5 times before shipment.
4) Any questions we will solve for u ASAP.
5) Samples could be kindly offer for testing quality.
6) We can make new mould for u according to your sample.
7)Full OEM service to realize customer own brand packing.
8) All products have to undergo a rigorous inspection to ensure best quality.