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Sorting method and sorting device for multilayer ceramic capacitors

A multi-layer ceramic and sorting device technology, applied in chemical instruments and methods, classification, solid separation, etc., can solve the problems of difficult sorting, poor product size consistency, abnormal thickness of ceramic diaphragms, etc., to improve production. Qualification rate and reliability, the effect of high-precision sorting

Active Publication Date: 2022-07-01
GUANGDONG FENGHUA ADVANCED TECH HLDG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the manufacturing process of multilayer ceramic capacitors, sometimes the thickness of some capacitors is abnormal due to the abnormal stacking number of ceramic diaphragms during lamination, or the thickness of ceramic diaphragms is abnormal, and the thickness of the entire batch of capacitor products is out of tolerance. defective product
These defective products are generally not found until the capacitor is cut into rectangular parallelepiped laminates during the manufacturing process. At this time, defective products have been mixed in a large number of products, and the consistency of product size becomes poor.
For capacitors with large sizes, the difference in thickness between good and bad products is generally large, and sorting is relatively easy, but for small-sized capacitors such as 0201, 01005, and 008004, the difference in thickness between good and bad products is small. Sorting is very difficult, and it is difficult for conventional sorting devices to meet such high precision requirements
Such defective products with excessive thickness will eventually have a negative impact on the taping of capacitors and the mounting on circuit boards

Method used

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  • Sorting method and sorting device for multilayer ceramic capacitors
  • Sorting method and sorting device for multilayer ceramic capacitors
  • Sorting method and sorting device for multilayer ceramic capacitors

Examples

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Embodiment 1

[0044] The schematic diagram of the appearance of the multilayer ceramic capacitor is as follows figure 1 As shown, for convenience of description, the surfaces formed by the width (W) and the thickness (T) of the rectangular parallelepiped multilayer ceramic capacitor are referred to as short sides. The length of the diagonal of the short side is S.

[0045] A sorting device for multilayer ceramic capacitors includes a guide plate and a positioning plate.

[0046] The top view of the guide plate of the multi-layer ceramic capacitor sorting device is as follows figure 2 As shown, the cross-sectional view of the guide plate of the multilayer ceramic capacitor sorting device along the I-I direction is as follows image 3 As shown, the guide plate is provided with a plurality of first through holes 12 . The shape of the first through hole is a straight cylindrical shape. In order to facilitate the introduction of a small-sized multilayer ceramic capacitor, the diameter D1 of...

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Abstract

The invention relates to a sorting method and a sorting device of a multilayer ceramic capacitor, belonging to the technical field of electronic components. The invention provides a sorting device composed of a guide plate provided with a plurality of straight cylindrical first through holes and a positioning plate provided with a plurality of truncated second through holes for sorting multilayer ceramic capacitors, which can be used for sorting multilayer ceramic capacitors. Good products and defective products with slight difference in thickness are separated in different positions in the second through hole, so as to realize high-precision sorting of defective products with out-of-tolerance thickness, and improve the production qualification rate and reliability of small-sized multilayer ceramic capacitors.

Description

technical field [0001] The invention relates to a sorting method of a multilayer ceramic capacitor and a sorting device thereof, belonging to the technical field of electronic components. Background technique [0002] The manufacturing process of multilayer ceramic capacitors is generally that electrode patterns are formed on unsintered ceramic diaphragms by screen printing, and then a plurality of ceramic diaphragms with electrode patterns and a plurality of ceramic diaphragms without electrode patterns are formed. The ceramic diaphragms are laminated in a certain order, and then cut into a cuboid laminated body, and then the binder is removed and sintered to densify the laminated body into a ceramic body with dielectric properties. Finally, the two sides of the ceramic body are formed. The terminal forms an external electrode, and the finished product of the multilayer ceramic capacitor is made. [0003] In the manufacturing process of multilayer ceramic capacitors, somet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B07B13/05B07B13/14
CPCB07B13/05B07B13/14
Inventor 刘伟峰安可荣田述仁宋子峰陆亨
Owner GUANGDONG FENGHUA ADVANCED TECH HLDG
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