Apparatus for sorting materials
First Claim
1. Apparatus for detecting material characteristics of material on a conveyor belt, comprising:
- a separating mechanism for thinning out the material, the separating mechanism comprising a first perforated conveyor belt, an immediately following second perforated conveyor belt having a speed of conveyance larger than a first speed of conveyance of the first conveyor belt, and first and second suction chambers respectively under upper strands of the first and second conveyor belts to draw air in through perforations in respective conveyor belt; and
a sensing mechanism following behind the separating mechanism to classify the material according to the condition of the material, the sensing mechanism comprising a mechanical striking device to strike against the material at predetermined time intervals, at least one acoustical receiver to detect noise produced by the striking device striking against the material, and an evaluation unit connected to the receiver to determine a type of material in response to detected noise.
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Accused Products
Abstract
An apparatus for sorting paper materials includes a separating mechanism for thinning the paper materials and a sensing mechanism for classifying the paper material according to type. The separating mechanism includes a plurality conveyor belts operating at successively higher speeds, whereby passing materials from one conveyor belt to another conveyor belt results in spreading the paper material. The sensing mechanism includes a mechanical striking device to strike the paper material, a microphone to detect the sound caused by the striking device and an evaluation unit to determine the type of paper material on the basis of the sound.
112 Citations
39 Claims
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1. Apparatus for detecting material characteristics of material on a conveyor belt, comprising:
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a separating mechanism for thinning out the material, the separating mechanism comprising a first perforated conveyor belt, an immediately following second perforated conveyor belt having a speed of conveyance larger than a first speed of conveyance of the first conveyor belt, and first and second suction chambers respectively under upper strands of the first and second conveyor belts to draw air in through perforations in respective conveyor belt; and a sensing mechanism following behind the separating mechanism to classify the material according to the condition of the material, the sensing mechanism comprising a mechanical striking device to strike against the material at predetermined time intervals, at least one acoustical receiver to detect noise produced by the striking device striking against the material, and an evaluation unit connected to the receiver to determine a type of material in response to detected noise. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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38. Apparatus for detecting material characteristics of paper or cardboard material transported by a conveyor belt, comprising:
a separating mechanism for thinning out the material on the conveyor belt; and
a sensing mechanism following the separating mechanism to classify the material according to the condition of the material, the sensing mechanism comprising a mechanical striking device to strike against the material in specifiable time intervals, at least one acoustical receiver to detect noise produced by the striking device upon striking the material, and an evaluation unit connected to the receiver to determine a respective material type in response to the detected noise.
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39. A method of classifying paper and cardboard material, comprising the steps of:
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passing the material from a first conveyor belt operating at a first speed to a second conveyor belt operating at a second speed higher than the first speed so as to separate the material; mechanically striking the material at predetermined intervals; detecting noise produced by the striking step; and determining a material type in response to the noise detected.
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Specification