Magneto-dependent sensor ultrasonic magnetic core plastic packaging process
A magnetic sensor and ultrasonic technology, used in packaging sealing/fastening, external support, transportation packaging, etc., can solve the problems of inability to form a completely covered magnetic core, direct contact between the magnetic core and liquid, safe and hygienic drinking water, etc. Achieve the effect of avoiding exposure to the outside, stable product quality, and saving production costs
Inactive Publication Date: 2018-01-12
FOSHAN CHUANDONG MAGNETOELECTRICITY
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Problems solved by technology
[0005] The purpose of the present invention is to provide a plastic sealing process for ultrasonic magnetic cores of magnetic sensors, which aims to solve the problem that the existing technology cannot form a completely coated magnetic core for demoulding, resulting in direct contact between the magnetic core and the liquid, causing drinking water safety and sanitation problems or needs Multi-molding to achieve complete coating of the magnetic core, resulting in complex mold design and increased production costs
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[0023] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples.
[0024] like Figure 2-3 As shown, a magnetic sensor ultrasonic core plastic packaging process specifically includes the following steps:
[0025] Step S1: Put the concave base 100 on the concave hole of the plastic mounting bracket that is compatible with the concave base 100, put the magnetic core 200 in the groove 110 of the concave base 100 that is compatible with the magnetic core 200, and put the upper cover 300 Placed on the magnetic core 200, the upper end surface of the upper cover 300 is flush with the upper end surface of the concave base 100;
[0026] Step S2: Adjust the parameters of the ultrasonic welding machine, including the frequency of the ultrasonic head, the pressure of the ultrasonic head, the delay time of the ultr...
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The invention discloses a magneto-dependent sensor ultrasonic magnetic core plastic packaging process. By means of an ultrasonic welding machine, an upper cover and a U-shaped base mutually rub through high-frequency vibration waves so that fusing between molecular layers can be formed, efficient cleaning and firm combining are achieved. When the upper cover and the U-shaped base are fused throughultrasonic waves, it is only need to install the upper cover and the U-shaped base to the ultrasonic welding machine, adjust the parameters of the ultrasonic welding machine and turn on the ultrasonic welding machine, one-time fusing forming can be completed, operation is convenient, the product quality is stable, and the product percent of pass is high. The whole magnetic core plastic packagingis formed at a time, a magnetic core is completely wrapped by the upper cover and the U-shaped base, the situation that the magnetic core is exposed outside is avoided, and requirements are met whilethe production cost is saved.
Description
technical field [0001] The invention relates to a plastic sealing process, in particular to a plastic sealing process of an ultrasonic magnetic core of a magnetic sensor. Background technique [0002] Using the magnetic field displacement to realize the change of the signal detection of the magnetic sensor is widely used in the field of automatic control, and in the field involving the liquid that needs to be in contact, the magnetic core driving the magnetic sensor needs to be coated. [0003] In the prior art, the magnetic core is mainly covered by the PP foaming process. When molding with a vertical injection molding machine, in order to achieve demoulding, there will be situations where the magnetic core cannot be completely covered (such as figure 1 As shown, 1 is the PP plastic packaging material, 2 is the magnetic core), that is to say, the magnetic core will still directly contact the liquid when in use, such as in the water purifier, water dispenser, etc., the magne...
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IPC IPC(8): B65B51/22
Inventor 龙克文魏秋军
Owner FOSHAN CHUANDONG MAGNETOELECTRICITY