Working Principle of Needle Detector Machine in Shoemaking Industry

- May 16, 2019-

Metal testing machine shoe making machinery for a long time, the company adheres to the "collection of the essence of home, shoe manufacturing machinery to create the perfect embodiment" as the enterprise concept. We adhere to the principle of customer first. In order to enhance the service function, we can provide professional design personnel to assist customers in the whole plant planning or design. Keep two-way communication with customers at all times, deeply understand the real or final needs of customers.

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The working principle of the needle detector is as follows:

The magnet and needle coil in the upper and lower magnetic heads are composed of the power supply connected to the machine to form a working magnetic field of the needle. When iron filings and other foreign materials with iron properties enter the needle area, they will cause changes in the local magnetic field environment, and then cause the fluctuation of the instantaneous current of the local magnetic field. The perceived abnormal current will be transmitted to the control circuit board and compared with the previously set needle detection sensitivity; when the current value of this change reaches or exceeds the needle detection sensitivity value set by the device when in use, the control circuit board will give a series of instructions such as alarm, stop, belt reversal to the machine; and finally complete these actions.


Maintenance of needle detector:

The conveyor belt should be thoroughly cleaned every week, and special cleaning cloth should be used. The surface of the conveyor belt must be cleaned because it is easy to dirty the product. The back of the conveyor belt should also be cleaned consciously. During daily use, contaminants containing trace iron may adhere to them. If this kind of dirt accumulates, even if there is no needle in the machine, it will react to the dirt on the conveyor belt.


To find a professional needle detector with good quality, we suggest you choose Suzhou Otten Electronics Technology Co., Ltd. which mainly produces and sells shoemaking machinery and equipment. At present, the company has many professional processing equipment, many employees, many senior engineers and a number of senior management personnel and technical backbone. It is a powerful enterprise specializing in the production of metal testing equipment in China. It has established various advanced production processes and reliable quality inspection system successively. It creates a good corporate image with excellent products and reliable reputation.