High-speed foot cutting die for LED lead frame

Abstract

The invention discloses a high-speed foot cutting die for an LED lead frame. The high-speed foot cutting die includes an upper module and a lower module. The upper module is provided with a first punch group and a second punch group. The first punch group includes at least one first punch set, the second punch group includes at least one second punch set, the first punch set and the second punch set are staggered in the longitudinal direction of the upper module, and the punching ends of the first punch set and the second punch set both extend out of the lower side face of the upper module; and a first discharging groove set matched with the first punch set is formed in the lower module, and a second discharging groove set matched with the second punch set is formed in the lower module. Bymeans of the high-speed foot cutting die, a series of quality problems such as aluminum powder, aluminum shavings, fluffy catkins, knife edge pasting and burrs which are particularly prone to being produced during foot cutting production of the LED aluminum lead frame are solved, so that the LED aluminum lead frame has the quality guarantee the same as that of a copper lead frame, innovation anddevelopment of the LED technology are further improved, and the higher using demands are met.

Description

【Technical field】 [0001] The present application relates to the technical field of LEDs, in particular to a high-speed leg-cutting mold for LED lead frames. 【Background technique】 [0002] Throughout the development of LED lighting technology, it has been a hundred years since the first discovery of the electroluminescence phenomenon of semiconductor material silicon carbide in 1907. Compared with traditional incandescent and fluorescent lighting equipment, LED is energy-saving, environmentally friendly, and long-lasting. The advantages such as lifespan are extremely prominent and widely valued (LEDs can save energy by 90% compared with incandescent lamps and 50% compared with fluorescent lamps). However, it has come from behind. At present, the world's LED production and technological innovation capabilities have been mainly concentrated in mainland China, Taiwan, Japan, South Korea and other places. [0003] Attracted by the high-speed development trend of the industry in...

AI Technical Summary

Problems solved by technology

In recent years, the development of lead frame technology has advanced by leaps and bounds. The development of lead frame specifications has become smaller and smaller, the arrangement has become tighter, the width of the sheet has become larger and the thickness of the material has become thinner and thinner. Major manufacturers are vying to follow suit. The price of lamp beads It has been continuously explored, but there is basically no breakthrough in material selection; LED hardware lead frame technology has been developed so far, and its materials are still red copper, brass, and iron. After researching the market metal strips, it seems difficult to find a fourth. cost-effective material

[0005] After research, it was found that the performance of the aluminum lead frame was not worse than that of the copper lead frame, and even slightly better than that of the copper lead frame; this means that the aluminum lead frame has a relatively Copper lead frame has better performance and lower cost than iron lead frame (Although the unit price of aluminum is higher than that of iron, its specific gravity is much lighter. For the same weight of aluminum, the number of output lead frames is several times more than that of iron. double), so the LED aluminum lead frame is of great significance to the industry, but it is also extremely difficult to develop, but the quality of stamping production is extremely unstable, and due to the special material of aluminum, it is particularly easy to produce powder chips during stamping production. , flying catkins, sticky edges, burrs, etc., and the quality requirements of LED lead frames are extremely high, and the cutting process cannot be oiled, which has established multiple barriers for the design and production of LED aluminum lead frame cutting dies. Therefore, those skilled in the art urgently need to develop a high-speed LED lead frame cutting mold to meet actual production needs.

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