 Thermoelectric display cell for recording images line by line |
| The object of the present invention is to increase the speed with which the image is recorded in a ... |
|
| Paper cutter for facsimile apparatus |
| What is claimed is: 1. A facsimile reception apparatus including printing means for reproducing ... |
|
| Method and apparatus for coordinate dimming of electronic displays |
| The present invention overcomes the problems of the prior art by increasing the number of ... |
|
| Method of determining and storing color printing information |
| In accordance with the present invention, a method of determining a set of color correction values ... |
|
| Electroacoustic transducer of the so-called "electret" type, and a method of making such a transducer |
| We claim: 1. An electroacoustic transducer comprising a substrate of a semi-conductor material with ... |
|
| Universal world clock |
| This invention pertains to a universal clock in which a world map projected from the south pole is ... |
|
| Method and apparatus for displaying textual or graphic data on the screen of television receivers |
| According to the invention, foreign language VCR and/or television commands arc transmitted to the ... |
|
| Controller for remotely controlling two or more controlled devices |
| 1. A control system comprising: a remote control apparatus; and a controlled apparatus controlled ... |
|
| Portable emergency breathing apparatus |
| In accordance with the present invention, closed circuit breathing apparatus is comprised of ... |
|
|
Automatic inspection system for detecting foreign matter
| Details |
Inventors: Saitoh, Michihiro; Gogami, Takatoshi; Osada, Toshiyuki;
Assignee: Showa Electric Wire & Cable Co., Ltd. (JP)
Primary Examiner: Orsino, Jr.; Joseph A.
Assistant Examiner:
Attorney, Agent or Firm: Pahl, Lorusso & Loud
An automatic inspection system detects foreign materials included in a sheet of transparent or translucent resin material such as a polyethylene compound. The automatic inspection system comprises an extruder for extruding a resin material into a sheet, means for withdrawing the extruded sheet along a path of travel, means disposed between the extruder and the withdrawing means for permitting the sheet to having down by gravity into a U-shape, sensor means for detecting a vertical position of the U-shaped portion of the sheet, controller means for adjusting the speed of sheet withdrawal for the withdrawing means in response to the output signal from the sensor means, a source of light disposed on one side of the path of travel of the sheet, an image sensor camera disposed on the other side of the path of travel of the sheet in confronting relation to the source of light for receiving light emitted from the source of light and having passed through the sheet to detect foreign materials included in the sheet. |
|
DETAILED DESCRIPTION The above-described drawbacks in the prior art apparatus have been successfully eliminated by the present invention.
Accordingly, it is an object of the present invention to provide an automatic inspection system capable of continuously detecting foreign material in a resin material sheet immediately after it is extruded.
Another object of the present invention is to provide an automatic inspection system capable of statistically processing detected foreign materials for information as to the number, sizes, kind and the like of the foreign materials.
According to the present invention, the above objects can be achieved by an automatic inspection system for detecting foreign material in a resin sheet comprising an extruder for extruding a resin material into the sheet, means for withdrawing the extruded sheet along a path of travel, means disposed between said extruder and the withdrawing means for permitting the sheet to having down by gravity into a U-shape; sensor means for detecting a vertical position of the U-shaped portion of the sheet; controller means for adjusting the speed of sheet withdrawal for the withdrawing means in response to the output signal from the sensor means; a source of light disposed on one side of the path of travel of the sheet; and an image sensor camera disposed on the other side of the path of travel of the sheet in confronting relation to the source of light for receiving light emitted from the source of light and having passed through the sheet to detect foregin material included in the sheet.
With the automatic inspection system of the invention, the kinds, the sizes, the number and other statistical information of the detected foreign materials are available to a nicety for quick determination of acceptance or nonacceptance of a resin material being inspected and the grade thereof.
The time required for such processing can greatly be reduced as compared prior art with manual or machinery inspection, and hence the inspection process can be simplified
|
| Related patents |
|
|
Electrochromic light regulator
Accordingly, the present invention has as its essential object to provide an improved electrochromic light regulator which substantially avoids the disadvantages ...
|
|
|
Electromagnetically driven shutter
An object of the present invention is to eliminate the above-described drawbacks and to provide an electromagnetically operated shutter of which the electromagnetic ...
|
|
|
Polymers of tricyclo[5.2.1.0.sup.2,6 ]deca-8-yl (meth)acrylate
It is an object of this invention to provide a polymer excellent in transparency and heat resistance overcoming the disadvantages of known transparent resins. It is ...
|
|
|
Hard contact lens material consisting of alkyl fumarate and silicon-alkyl fumarate copolymers
OF THE INVENTION In accordance with the present invention, there is provided a hard contact lens material made of a copolymer comprising at least two kinds of fumaric ...
|
|
|
Magneto-optical head assembly with improved detection means
An object of the present invention is to overcome the problem areas discussed for the abovementioned magneto-optical head, and also to provide a head which is capable of ...
|
|
|
Optical recording and reproducing device with normalization of servo control signal using switchable automatic gain control circuitry
An object of the present invention is to provide a control circuit wherein the number of offset adjustment parts is small, high precision is easily obtained, and it can ...
|
|
|
Optical recording/reproducing apparatus
The present invention is contrived in consideration of these circumstances, and is intended to provide an optical recording/reproducing apparatus affording a good ...
|
|
|
Compact high-vari-focal ratio zoom lens system
It is, therefore, a primary object of the present invention to provide a compact high vari-focal ratio zoom lens system which is to be used with a camera with a lens ...
|
|
|
Process and apparatus to cut laminated glass
What is claimed is: 1. In an apparatus to cut laminated glass, comprising two platelike supports for a laminated glass sheet to be cut, of which one can swivel around an ...
|
|
|
Method of forming a conductive and reflective thin metal film suitable for a reflective LCD device and a device produced by the method
An object of the present invention is to provide a method by which a thin metal film is formed in a cost-effective way and by a simple process that involves applying a ...
|
|
|
LCD 
