Automatic-control continuous feeding device for intraocular lens growth

A feeding device and artificial crystal technology, applied in the direction of crystal growth, single crystal growth, self-melt pulling method, etc., can solve problems such as blockage, small particle size, and loss of meaning of automatic feeding device, and achieve good economic and social benefits. Simple structure, realize the effect of computer automatic program control management

Active Publication Date: 2012-10-10
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the raw materials used in continuous feeding are all powders with a relatively small particle size. Using a screw propulsion feeding device can easily block the contact part between the screw dial wheel and the feeding pipe, thus making the automatic feeding device meaningless.

Method used

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  • Automatic-control continuous feeding device for intraocular lens growth
  • Automatic-control continuous feeding device for intraocular lens growth

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, content of the present invention will be further described:

[0014] Such as figure 1 , artificial crystal automatic control growth continuous feeding device, including hanging crucible crystal growth furnace, computer control system 11 and pneumatic ship lock type automatic continuous feeding device 12. Wherein, the hanging crucible crystal growth furnace includes a hanging crucible system 7, an intermediate frequency coil, a crystal lifting and weighing system 10, a growth furnace body and a temperature control cabinet; figure 2 As shown, the pneumatic ship lock type automatic continuous feeding device of the present invention includes a silo 1, a feeding pipe 3, two pneumatic shut-off valves 4 and two relays 5; the crystal lifting and weighing system 10 and the temperature control cabinet pass through The data line is connected with the computer control system 11; the feed bin 1 is fixed on the base 2, the middle part...

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Abstract

The invention discloses an automatic-control continuous feeding device for intraocular lens growth, which comprises a suspended crucible lens growing furnace, a computer control system and a pneumatic ship-lock automatic continuous feeding device. The device disclosed by the invention can be used for realizing non-blocking non-vibration continuous feeding and is very suitable for continuous feeding of intraocular lens growth. By the automatic-control continuous feeding device, automatic program control management of a computer can also be realized, an error caused by manual operation is avoided, and particularly the requirement on continuous feeding of lenses, such as lithium tantalate, lithium niobate and the like with nearly-stoichiometric ratio, which grow by a suspended crucible method, can be ensured.

Description

technical field [0001] The invention relates to a continuous feeding device, in particular to a continuous feeding device for artificial crystal growth under automatic control, and belongs to the field of crystal growth equipment. Background technique [0002] The pulling method is one of the main methods of growing crystals. In view of non-stoichiometric crystals such as lithium niobate and lithium tantalate, Japanese experts designed a double crucible, and Chinese experts designed a hanging crucible pulling method, all of which grow near lithium-rich melts with better performance. Stoichiometric crystals. In order to ensure the uniformity of the crystal, it is necessary to ensure that the lithium-rich components of the melt in the inner crucible remain unchanged, which requires that the stoichiometric ratio of raw materials be continuously added to the outer crucible according to the crystal growth rate during the process of pulling the crystal. Therefore, it is ensured ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B15/00
Inventor 王继扬刘宏朱怀烈吴剑波于永贵孙德辉章任上夏宗仁颜涛秦小勇崔坤刘庆波
Owner SHANDONG UNIV
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