JPH0648401Y2 - Seaweed inspection machine - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a seaweed inspection machine.

(B) Conventional technology In the past, among the quality inspection items of seaweed, items related to shape, that is, items such as length, width, tear, unevenness of papermaking, holes, and chipped corners were visually judged to be good or bad. Recently, a seaweed inspection machine has been developed that uses a transport device, line image sensor, rotary encoder, etc., to quantitatively and automatically determine the quality of seaweed by comparing it with the reference values of the above items. There is.

(C) Problems to be solved by the invention However, corner chipping occurs at the four corners of seaweed, and the width of the seaweed occurs at the side edges of the seaweed. Since items are detected, both are detected as the length in the width direction,
For example, even if the line image sensor detects a length shorter than the reference value, it is not possible to distinguish whether this is caused by the short width or caused by the lack of corners. The detection accuracy of was not stable, and the seaweed lacking in the corners might be mixed into what was judged as a non-defective product, resulting in the loss of the reliability of the inspection.

(D) Means for solving the problems In the present invention, a rotary encoder linked to the carrier, a photoelectric sensor for measuring the horizontal width of the seaweed being conveyed by the carrier, and a left and right end of the width The photoelectric sensor for detecting chipped corners is connected to the controller, the photoelectric sensor for length measurement detects the center of the seaweed, and the photoelectric sensor for corner missing detects the left and right edges of the seaweed. The purpose of the present invention is to provide a seaweed inspection machine configured to detect the size of chipped seaweed corners from the count of the rotary encoder until the detection.

(E) Action According to the present invention, when the seaweed is being conveyed by the carrier device, the photoelectric sensor for measuring length detects the central portion of the seaweed, and then the photoelectric sensor for detecting the corner lacks the seaweed. The count number of the rotary encoder until it detects the left and right ends of the number increases corresponding to the size of the square, so by converting this time difference to the length with the rotary encoder,
The quality of seaweed can be determined by detecting the size of the corner chip and comparing it with the quality reference value.

(F) Effect As described above, the size of the corner chipping is accurately detected by detecting the corner chipping, which was inaccurate in the line image sensor, by the photoelectric sensor dedicated to the corner chipping detection. Therefore, it is possible to accurately judge whether the quality is good or not, and to improve the reliability of the inspection.

(G) Embodiments The present invention will be described in detail with reference to the drawings with reference to the drawings.
(A) shows a seaweed inspection machine, and the inspection machine (A) is composed of a transfer device (B), an inspection device (D) linked with the transfer device (B), and a controller (C). .

The transport device (B) includes front and rear conveyors (1) and (2), which are arranged at a predetermined interval (s) in front and rear, and a rear conveyor (2).
The seaweed (N) supplied to the front conveyor (1) is transferred to the rear conveyor (2) across the above interval (s), and the inspection device Based on the inspection result in (D), the transported seaweed (N) is passed through the damper (3) to pass the good product and drop the defective product.

The inspection device (D) is the pulley (4) of the front conveyor (1).
A rotary encoder (E) for detecting the transport distance of the transport device (B) is connected to the above, and the seaweed (N) sent to the transport device (B) is detected above the entrance of the front conveyor (1). Provided with photoelectric sensor (S1), front conveyor (1)
A photoelectric sensor (S2) for length measurement is installed in the upper center position of the end of the, and photoelectric sensors (S3) (S4) for corner missing detection are installed on the left and right sides of the photoelectric sensor (S2) to convey. The left and right edges of the seaweed (N) are detected.

Further, a rod-shaped light source (6) such as a fluorescent lamp is provided below the interval (s), and the conveying device (B) is provided above the interval (s).
The line image sensor (L) is arranged orthogonally to the conveyance direction of the above, and the photoelectric sensor (S5) for detecting that the seaweed (N) has been sent is arranged above the end of the rear conveyor (2). .

As shown in FIG. 2, the controller (C) is provided with a panel (7) schematically showing the arrangement of each sensor on the upper surface of the controller (C).
Further, a large number of display lamps (8) indicating the detection result of each sensor and the operating state of the inspection machine (A) are provided.

In addition, on the lower part of the surface of the controller (C), the seaweed number counter (9), the reset buttons (10), (11) and (12) of the counter (9), the forward rotation, the reverse rotation, and the stop of the transfer device (B). Buttons (13) (14) (15), inspection machine (A) start and stop buttons (16) (17), alarm buzzer ON / OFF buttons (18) (19), power ON / OFF button (20 ), Width reference value setting dial (21), hole reference value setting dial (2
2) A dial for setting unevenness reference value (23) and a corner lacking reference value setting dial (24) are provided.

FIG. 3 shows the configuration of the controller (C),
The microcomputer (M) built in the controller (C) has a rotary encoder (E), a photoelectric sensor (S1) (S) arranged outside the controller (C).
2) (S3) (S4) (S5), line image sensor (L), damper (3) are connected, and the seaweed number counter (9) and the same counter (9) installed in the controller (C) Reset Button (10) (11) (1
2), Forward / reverse rotation, stop button (13) of the transport device (B)
(14) (15), start / stop button for inspection machine (A) (16)
(17), alarm buzzer ON / OFF button (18) (19), power ON / OFF button (20), width reference value setting dial (2
1), hole reference value setting dial (22), paper unevenness reference value setting dial (23), and corner missing reference value setting dial (24) are connected.

The embodiment of the present invention is configured as described above. When the inspection machine (A) is started, each reference value is set, and the seaweed (N) requiring inspection is placed on the front conveyor (1), Nori (N) with a photoelectric sensor (S1) placed on the conveyor (B)
When the seaweed detection state continues for a certain time or more, the seaweed is blocked and the controller (C)
The display lamp (8) of is turned on.

When the seaweed (N) reaches the rear end of the front conveyor (1), the photoelectric sensor (S2) for measuring length detects the start end of the seaweed (N) and outputs it to the controller (C). The length of the seaweed (N) is detected from the count of the rotary encoder (E) while the operation continues.

In addition, the photoelectric sensors (S3) (S4) for detecting the missing corner detect the left and right edge portions of the seaweed (N), and the photoelectric sensor (S2) for measuring the length detects the beginning of the seaweed (N). Rotary encoder (E) from detection to corner sensor detection photoelectric sensor (S3) (S4) detecting seaweed (N)
The size of the corner chipping on the starting end side of the seaweed (N) is detected from the count of.

In addition, the rotary encoder (E) from when the photoelectric sensor (S3) (S4) for detecting the corner defect does not detect the seaweed (N) until the photoelectric sensor (S2) for measuring the length does not detect the seaweed (N) The size of the corner chipping on the terminal side of the seaweed (N) is detected from the count of.

In addition, the light from the light source (6) is applied to the seaweed (N) passing through the space (s) between the front and rear conveyors (1) and (2), and the intensity of the light transmitted through the seaweed (N) is detected by the line image sensor (L). ) To detect the width of seaweed (N), paper unevenness, holes, etc.

The above detection results are detected by the microcomputer (M) with the built-in controller (C) and the above dials (21) (2).
2) Compare the reference values set in (23) and (24) to determine the quality of seaweed (N), and activate the damper (3) to sort good and bad products.

In addition, the inspection machine (A) is equipped with a sensor for detecting the degree of dryness of the seaweed and connected to the controller (C), and a damper is attached to the transporting device, so that the unseasoned seaweed is simultaneously dried. It is also possible to select and remove seaweed.

In particular, a rotary encoder (E) for detecting the transport speed of the transport device (B) is provided, and a photoelectric sensor (S2) for measuring the length of the seaweed and left and right sides are provided in the center above the end of the front conveyor (1). A photoelectric sensor (S
3) By arranging (S4) and inputting these detection results to the controller (C), the microcomputer (M) with a built-in controller (C) determines whether the seaweed (N) is good or bad. Therefore, it is possible to accurately detect a corner defect, and it is possible to increase the reliability of the inspection.

[Brief description of drawings]

 FIG. 1 is a schematic diagram showing the configuration of the seaweed inspection machine of the present invention. FIG. 2 is a front view of the controller. FIG. 3 is a block diagram showing the configuration of the controller. B: Conveyor C: Controller E: Rotary encoder N: Seaweed S2: Photoelectric sensor for length measurement S3, S4: Photoelectric sensor for corner missing detection

Claims (1)

[Scope of utility model registration request] 1. A rotary encoder (E) interlocking with a transfer device (B) and a photoelectric sensor (S2) for length measurement for detecting the lateral center portion of seaweed (N) being transferred by the transfer device (B). ) And a photoelectric sensor (S3) (S4) for detecting a corner missing that detects the left and right ends of the same width are connected to the controller (C), and the photoelectric sensor (S2) for measuring the length is Nori (N). From the number of counts of the rotary encoder (E) from the detection of the central part of the to the detection of the missing corners by the photoelectric sensors (S3) (S4) for detecting the left and right ends of the seaweed (N),
A seaweed inspection machine configured to detect the size of chipped seaweed (N).