How to replace bobbin and upper thread on industrial sewing machine
When industrial sewing machines are sold, the upper thread and the lower thread will be threaded first. Remember the position of the manufacturer’s thread installation, and generally do not change it. The thread threaded by the manufacturer must be the best when it is sold. If it is changed later, it may affect sewing. When threading the upper thread, we first put two reverse twisted threads and one positive twisted thread on the upper thread in order. Seen from the position of the operator, the leftmost needle is a reverse shuttle, which uses positive twisting, and the other two needles in the middle and the right are positive shuttles, which use reverse twisting.
The thread guide, thread take-up, and thread tensioner can all adjust the tension of the upper thread.
When changing the bobbin, run the needle to the position where it can pierce the cloth. At this time, pay attention to the hook tip of the hook thread to be at the bottom, then twist the lower shuttle stopper, and take out the bobbin case. Replace the bobbin with a full thread, return the lower shuttle stop to the original position, and finally check whether the bobbin cover and the position of the shuttle stop are installed correctly.
.Professional automatic sewing machine manufacturer in China, with years of manufacturing and export experience, contact us!《Needle zero position》 Set the machine origin, after the zero reset is completed, start the pull rod to make the machine head pass the needle zero position probe and then stop, move the machine head to the left side of the needle bed by hand, and align the left outer side of the machine head with the first position of the needle bed. At the needle, press the F1 key to write the currently displayed needle value. (First, enter the number of needles in one inch of the flat knitting machine and the total number of needles in the flat knitting machine, and then set the synchronous belt pitch correction parameters)
1. Automatic head turning: After completing a quilting operation, the seam head can be turned up automatically, which is convenient for the replacement of quilted products.
2. Wire break detection: When the wire is broken, it will automatically stop, the red light of the wire break detection device will be on, and it can go back to the broken wire for quilting.
3. Step quilting: Various step quilting operations can be performed
4. Emergency stop protection: press the red emergency stop button at any time during work, the quilting machine will immediately power off and stop
5. Process setting: It has the settings of various practical process parameters such as stitch selection, angle correction, pattern scaling, etc. High-speed and accurate quilting at 2000 rpm, low noise, long machine life, and quilting that meets customer needs. The target quilting area of high-quality and high-yield quilted products is equal to the size of the machine, and the smallest machine installation area is achieved. ) drives the machine head to run in the X direction, and the servo motor (optional) drives the machine head to run in the Y direction, and the embroidery frame is fixed, which ensures the minimum machine transmission distance and stable long-term work. Fast and accurate, and avoids damage and replacement of the handpiece in the future.
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