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Paper multi-feed detection apparatus and paper multi-feed detection method

一种检测设备、纸张类的技术，应用在物件供给、桩分离、功能指示等方向，能够解决限制配置形状、超声波传感器造价提高、降低设计自由度等问题，达到防止干扰成分、稳定发射性能、提高接收性能的效果

Inactive Publication Date: 2010-06-09
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, this requires the use of sound-absorbing materials to seal the emission area and reception area, thus restricting the shape of the configuration, reducing the degree of freedom in design, and increasing the cost of the ultrasonic sensor itself

Method used

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  • Paper multi-feed detection apparatus and paper multi-feed detection method
  • Paper multi-feed detection apparatus and paper multi-feed detection method
  • Paper multi-feed detection apparatus and paper multi-feed detection method

Examples

Experimental program
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Embodiment 1

[0027] The first embodiment of the present invention will be described in detail below with reference to the drawings.

[0028] The picture shows the paper overlapped conveyance detection equipment built in the copier, such as figure 1 As shown, the above-mentioned paper overlapping conveyance detection device 11 is provided on the upper side of the device body 12 with a conveying path 13 for conveying the paper P in a horizontal direction. The conveying path 13 is covered by two conveying guide plates 14 and 15 of an upper upper conveying guide plate 14 and a lower lower conveying guide plate 15 that are provided opposite to each other with a flat conveying space 13a interposed therebetween.

[0029] In addition, the transmitter 17 of the ultrasonic sensor 16 is installed above the transmission path 13, and the receiver 18 of the ultrasonic sensor 16 is disposed below, so that the transmitter 17 and the receiver 18 face each other across the transmission path 13. The above-mentio...

Embodiment 2

[0041] image 3 Shown is another embodiment of the paper overlapping conveyance detecting device 31. The copy paper overlapping conveying detecting device 31 is provided with a conveying path 33 on the upper side of the apparatus body 32 for conveying the paper P in a horizontal direction. The conveying path 33 is covered by two conveying guide plates 34, 35, which are an upper upper conveying guide plate 34 and a lower lower conveying guide plate 35, which are provided opposite to each other across a flat conveying space 33a.

[0042] In addition, the transmitter 37 of the ultrasonic sensor 36 is installed above the transmission path 33, and the receiver 38 of the ultrasonic sensor 36 is disposed below, so that the transmitter 37 and the receiver 38 face each other with the transmission path 33 therebetween. The above-mentioned ultrasonic sensor 36 sets the transmitting and receiving directions at a certain tilt angle, and adopts a configuration suitable for transmitting and rec...

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Abstract

A paper multi-feed detection apparatus and a paper multi-feed detection method are provided for preventing the detection capability from being deteriorated by a noise factor and improving the detection precision even where an area around the feeding path has no extra space in terms of the shape and there are many noise-generating factors because of a demand for a smaller size of the device. An ultrasonic transmission opening formed in one of two feeding guide plates is large so as to discharge outside a reflected wave which returns through the ultrasonic transmission opening, and an ultrasonicreceiving opening formed in the other feeding guide plate is smaller than a receiving face area of a receiver for receiving the ultrasonic wave.

Description

Technical field [0001] The present invention relates to paper overlapping transmission detection equipment suitable for office automation equipment such as copiers, scanners, etc. It is specifically described as being able to correctly detect paper overlapping transmissions such as paper, banknotes, merchandise vouchers, book coupons, small stamps, cards, etc. Paper overlapping conveying detection equipment and paper overlapping conveying detection method. Background technique [0002] In recent years, as a detection device for overlapping conveyance of paper sheets that are easy to overlap, such as thin paper, there has been a paper overlapping conveyance detection device using an ultrasonic sensor. When using the above-mentioned ultrasonic sensor to detect paper, the following ultrasonic-specific detection performance can be achieved. [0003] (1) A non-contact method that does not touch the paper is used for detection, which will not hinder the conveyance of the paper. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H7/12
CPCB65H2404/611B65H2511/524B65H2553/30B65H2515/82B65H7/12B65H2701/1912B65H2220/01B65H2220/03
Inventor 中条秀树中村仁数田纯子三好文德渥美英要中泽进二
Owner SHARP KK
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