Paper machine light curtain safety production device

A technology for safe production and paper machine, applied in the direction of optical device exploration, etc., can solve the problems of non-adjustable height, high price, false triggering, etc., and achieve the effect of reducing abnormal shutdown, increasing control safety, and improving safety and reliability.

Pending Publication Date: 2019-07-26
上海东冠纸业有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0003] The currently used light curtain has a protection height of 500mm, and the transmitting and receiving devices are arranged on both sides of the roll holder mechanism. However, the site environment is changeable and uncertain. Due to the large number of beams of the light curtain, fine paper dust is easy to enter the device or the optical path. Blocking the transmitting and receiving light screens will cause the light curtains to fail to work correctly and cause false triggering. There may also be damage to the light curtain device during the production process due to improper manual operation. The price is relatively expensive, and the height cannot be adjusted, and it is inconvenient to replace.

Method used

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  • Paper machine light curtain safety production device
  • Paper machine light curtain safety production device

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Embodiment

[0024] Such as figure 1 As shown, the present invention provides a light curtain safety production device for a paper machine, including:

[0025] Photoelectric sensor: It is a reflective plate photoelectric sensor, which is arranged on both sides of the paper roll frame of the paper machine. It includes a sensor body and a reflector arranged oppositely. The sensor body includes a vertical pole and an aluminum square installation on the top of the vertical pole. The box and the light-emitting device and the light-receiving device arranged in the mounting box, the infrared rays emitted by the light-emitting device are reflected by the reflector and received by the light-receiving device, and when blocked, a trigger signal is generated.

[0026] The side of the square mounting box facing the reflector is provided with a vertical slot for emitting and receiving infrared rays, and the light emitter and the light receiver are vertically arranged and aligned with the vertical slot.

[0027...

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Abstract

The invention relates to a paper machine light curtain safety production device. The device comprises a photoelectric sensor and a triggering control circuit, wherein the photoelectric sensor is a reflective-plate photoelectric sensor, is arranged at the two sides of a column paper rolling frame of a paper machine and comprises a sensor body and a reflective plate which are arranged oppositely; and the triggering control circuit uses a triggering signal of the reflective-plate photoelectric sensor as a switching action signal to control a rolling part of the paper machine to shut down and givean alarm. Compared with the prior art, the device has the advantages of being safe, reliable and capable of preventing a malfunction, etc.

Description

Technical field [0001] The invention relates to a paper machine in the field of safe production, in particular to a light curtain safety production device of a paper machine. Background technique [0002] In the safety production process of Metso Paper Machine, a light curtain sensor is used, through which infrared rays are used to protect the light curtain. When the light curtain is blocked, the shading signal is output to control the mechanical equipment to stop working and avoid safety accidents. [0003] The protection height of the light curtain in use is 500mm, and the transmitting and receiving devices are arranged on both sides of the paper roll mechanism. However, the scene environment is changeable and uncertain. Due to the large number of light curtains, fine paper dust is easy to enter the device or light path Blocking the transmitting and receiving light screens will cause the light curtains to fail to work properly and cause false triggers. There may also be improper ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V8/14
CPCG01V8/14
Inventor 张景争
Owner 上海东冠纸业有限公司
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