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Polyimide film thickness control mechanism and polyimide film production device

A polyimide film, thickness control technology, applied to flat products, other household appliances, coatings, etc., can solve the problems of polyimide flow hysteresis, poor thickness adjustment effect, etc., to improve the uniformity of thickness sexual effect

Active Publication Date: 2021-06-22
扬州苏伟新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, due to the hysteresis of the temperature adjustment of the material at the salivating nozzle, for example, a process is required for heating and cooling, which leads to the hysteresis of adjusting the flow rate of polyimide, making the thickness adjustment effect not good

Method used

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  • Polyimide film thickness control mechanism and polyimide film production device
  • Polyimide film thickness control mechanism and polyimide film production device
  • Polyimide film thickness control mechanism and polyimide film production device

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Embodiment Construction

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change acc...

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Abstract

The invention discloses a polyimide film thickness control mechanism and a polyimide film production device. The polyimide film thickness control mechanism is arranged at the bottom of a casting machine and comprises a flow guide component, two elastic wings, piezoelectric ceramics, limiting plates and a thickness sensor, wherein the flow guide component is arranged at the bottom of a containing cavity of the casting machine, and a plurality of flow guide holes are formed in the flow guide component; the two elastic wings are oppositely arranged and define a casting nozzle of the casting machine; the piezoelectric ceramics are arranged on the outer sides of the two elastic wings; the limiting plates are arranged on the outer sides of the piezoelectric ceramics; the thickness sensor is used for measuring the thickness of a polyimide film; and the power-on condition of the piezoelectric ceramics is adjusted according to the thickness detected by the thickness sensor, so that the piezoelectric ceramics drive the elastic wings to deform to change the through-flow section of the casting nozzle.

Description

technical field [0001] The invention relates to a polyimide film thickness control mechanism and polyimide film production equipment. Background technique [0002] The equipment for producing polyimide film by salivation method includes: front drive roller, rear drive roller, steel belt wound on the front drive roller and the rear drive roller, and the winding polyimide film set on one side of the front drive roller. The curling roll of the film, the salivating machine set above the steel belt; the liquid polyimide is filled in the salivating machine, and the bottom of the salivating machine is formed with a salivating nozzle, and the liquid polyimide flows out from the salivating nozzle and lays on the steel belt. The steel belt moves forward with the steel belt and passes through the dryer to dry and solidify, and then it is separated from the steel belt and wound on the coiling roller. [0003] In the polyimide film production process, it is necessary to control the thic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C41/28B29C41/52B29C41/34B29K77/00B29L7/00
CPCB29C41/28B29C41/52B29C41/34B29K2077/00B29L2007/00
Inventor 徐伟伟王飞鹏李献宝李永强申子嘉何渝霜徐凡杨子健杨骥高正荣刘顺成吴魁
Owner 扬州苏伟新材料科技有限公司
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