Oiling Sewing Machine


A. Manual oiling system it requires the operator to oil each point individually, and on a regular (preferred 5-6 hour) basis. 
B. Automatic oiling system it can supply all points of lubrication or can be com binned with manual oiling. 
The oil in automatic systems can be distributed: 
1. Through gravity, 
2. Through splash, 
3. Through wicking (such as cotton cord) or 
4. Through pressure supplied by a pump. 
All automatic oiling systems require the reservoir to be filled to a certain level with oil. Wick fed systems range from small reservoirs (the wicking itself may serve as reservoir) to more substantial cavities. The smaller the reservoir, the more often oil will need to be added. Larger oil reservoirs of any system type may have marked indicator levels, so that the operator can verify that enough oil is available in the reservoir. 

(previous topic: oiling sewing machine drawing )

Pressure lubrication systems may have sight windows or bubbles. A flow or splash of oil seen through these windows or bubbles will indicate that there is likely a good pressure of oil in the system. Pressure systems may also have adjustment needles or valves to control the flow of oil to critical points such as the hook race. Any system can have an oil return mechanism to recirculate oil and to prevent buildup of oil in pockets from which it may leak or overflow. The oil return mechanisms can be gravity flow, wicking, or both. Pressure systems may also incorporate a suction return, operated by the same pump that supplies oil pressure. Lubrication is necessary for the sewing machine maintenance but at the same time lubrication may be the cause of oil stains in a garment. 


To prevent the oil stains in a garment, an advance technology is used .On the basis of that technology, we can divide the sewing machines into the following categories:
1. Sewing Machine with Lubrication 
2. Semi Dry head Sewing Machine 
3. Dry Head Sewing Machine 

SEWING MACHINE (SNLS) WITH LUBRICATION: 
The needle bar and thread take-up components are lubricated with the minimum required quantity of oil. For the hook section, the standard method of lubrication is employed. 


SEMI DRY HEAD SEWING MACHINE 
With the advanced dry technology of enabling operation without being lubricated, a frame which does not need lubrication has been developed. It is provided with not only a high-speed sewing capability, but also a safety feature for preventing oil stains. 
• The needle bar and thread take-up components are not lubricated. 
• For the hook section, the standard method of lubrication is employed. 


DRY HEAD SEWING MACHINE 
As its designation indicates, the dry head type machine ensures convenience of use by totally preventing the oil from staining the material being sewn. The machine wholly Contributes to the improved quality of finished products. The section around the needle bar, the thread take-up lever and the hook are not lubricated.


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