3 - Basic knowledge about the overlock safety stitch machine

2.2 Pneumatic type (MC-4, MC-5, MC-8, MC-24) The chain-off thread suction unit sucks chain-off thread by means of compressed air. Another type which is capable of simultaneously sucking thread chips produced after trimming to help improve the work environment is also available. 3. Auto-lifter (AK32, AK49, AK101) Two different types of auto-lifters are available; one lifts the presser foot by depressing the pedal with the heel in a similar manner to the sewing machines with a thread trimmer and the other lifts the presser foot automatically after thread trimming. Both types help reduce operator fatigue. Since the auto lifter can be mounted on the machine together with a chain-off thread trimming device and chain-off thread suction unit, it helps reduce operator fatigue even more effectively. 4. Gathering device (S159, S160, S161, S162) The gather device is capable of making continuous/partial gathers in knitted fabric, light-weight knit or cloth materials such as georgette and broad cloth. Two different types of gathering devices are available: one opens/closes its gathering foot interlocked with the presser foot pedal and the other opens/closes by means of a manual lever. It has a built-in knee-operated differential feed control device which is used for controlling the differential feed ratio as desired, thereby facilitating partial gathering. In addition, a pedal-interlocked type gathering device for safety stitch machines/overlock machines and a manual-lever type one for safety stitch machines/overlock machines are available. 5. Blind hemming device (L121, L123) The blind hemming ruler is intended for knitted fabric and knits. It helps finish uniformly folded hems, achieving consistent quality. Two different types of rulers are available; one is a simplified type and the other is a stitch failure prevention type, the hemming guide of which moves by a required amount when a multilayered part is reached. 6. Cloth edge guide ruler (H153, H154) The ruler helps produce finished products of consistent quality with its swing- type cloth edge guide which guides the material edge. 7. Tape guide (Q141) This device is best-suited to sewing processes such as sewing shoulder tape to knit products. A consistent finish is promised by using the tape guide in combination with the tape attaching foot. The binder is used for simultaneously run stitching and tape-binding in the reinforcing process for pocket-bag sewing. The binder binds tape while the cut- before knife mechanism of the overlock machine cuts a garment body and the binding tape. The binder is also capable of sewing curved parts of a material to help produce a beautifully finished product. ＊ There are diversified types of overlock/safety stitch machines and their applications are also diverse. We have many more devices which are not introduced in this issue. Please do not hesitate to ask the JUKI office in your area for further information. 8. Binder (N077) Binder for a clean finish at both top and bottom

Pneumatic chain-off thread suction device

Gathering device

Blind hemming device

Binder for a clean finish at both top and bottom

Basic Knowledge About Overlock/Safety Stitch Machine Various Devices and Attachments | © 2018 Superior Sewing Machine & Supply LLC