JP2008188580A - Measuring and sorting apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform stable and accurate measurement by delivering sorting trays to measuring instruments at constant intervals by a sorting conveyor to slide them. <P>SOLUTION: The measurement of a sorting target by the measuring instruments 1 and 2 is performed and the detection values of two measuring instruments 1 and 2 arranged along the feed direction of the sorting target are inputted to one microcomputer for performing sorting output on the basis of the measurement while the measuring points A and B by two measuring instruments 1 and 2 are set so as to be shifted before and behind. The measurement of the sorting target by the respective measuring instruments 1 and 2 is performed by driving the sorting conveyor. The measuring point A by the measuring instrument 1 and the measuring point B by the measuring instrument 2 are alternately determined at every constant time interval in this measurement by the order from the microcomputer and the respective output signals are alternately performed to be inputted to one microcomputer. Data processing is performed on the basis of the detection values at the measuring points A and B and the weight or the like of the sorting target is calculated to be sorted and outputted. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  This invention arranges two measuring instruments along this conveyance direction in the sorter conveyor etc. of the form which connects a lot of sorters in an endless form, and conveys in rotation. The present invention relates to a measuring and sorting apparatus that sorts a sorting object while measuring the weight of the sorting object on which the sorting object is placed, and is used as a sorting apparatus for sardines, root vegetables, fruits, seafood, etc. be able to.

  A number of sorting dishes are arranged endlessly on the transport chain and rotated and transferred, and the objects to be sorted are placed on each sorting dish and transported, and measured by a measuring instrument such as a load cell provided in the middle of the transportation. However, there is known a sorting conveyor technology that transports to a predetermined sorting position, falls the sorting tray, and discharges an object to be sorted to a predetermined sorting position.

  In the sorting conveyor provided with one measuring instrument in the middle of conveyance as described above, it is possible to perform stable and accurate measurement by causing the measuring tray to slide on the measuring instrument over a certain interval. A guide rail having a predetermined length is provided for measurement, and a predetermined sliding time and sliding distance of the sorting tray are ensured. Accordingly, the sliding time and distance are limitations for increasing the conveying speed of the sorting conveyor, the sorting efficiency, and the like.

  According to the first aspect of the present invention, the objects to be sorted are measured by the measuring instruments 1 and 2, and one microcomputer (microcomputer) 3 that sorts and outputs based on the measurements is provided along the conveying direction of the objects to be sorted. The detection values of the two measuring instruments 1 and 2 are input, and the measurement point positions (measurement points) A and B by the two measuring instruments 1 and 2 are set to be shifted back and forth. It is set as the structure of the measurement selection apparatus to perform. The sorting conveyor is driven and the objects to be sorted are measured by the measuring instruments 1 and 2. In this measurement, a measurement point A by the measuring instrument 1 and a measurement point B by the measuring instrument 2 are alternately determined at regular time intervals according to a command from the microcomputer 3, and each output signal is alternately performed to obtain one Based on the detection values at the measurement points A and B, the data is input to the microcomputer 3 and the weight of the object to be sorted is calculated and output.

  The invention according to claim 2 is a tare measuring instrument 1 for measuring the sorting tray 4 at the time of the starting lap on the sorting conveyor 5 in which the sorting tray 4 on which the sorting subject is placed and conveyed is disposed, and the sorting target. The sorting measuring instrument 2 for measuring the object to be sorted on the sorting dish 4 on which the label is placed is arranged. The sorting conveyor 5 provided with the sorting tray 4 is driven to perform measurement by the measuring instruments 1 and 2. When the sorting tray 4 comes to the position of the first measuring instrument 1 by this activation, the tare measurement is performed, and when the sorting tray 4 comes to the position of the measuring instrument 2 subsequently, the sorting target in a state where the sorting target is placed on the sorting tray 4. The weight, etc., is measured. Thus, by subtracting the weight or the like measured by the measuring instrument 1 from the weight or the like measured by the measuring instrument 2, the actual weight or the like of the object to be sorted can be calculated and subjected to the sorting process.

  The invention described in claim 3 is characterized in that the stored value of the previous tare measurement is updated by the tare measurement after the starting lap by the measuring instruments 1 and 2. When each sorting tray 4 at the start-up of the sorting conveyor 5 is empty and measured by the measuring instrument 1 or 2 for the first time, the tare measurement is performed. When the object to be sorted is placed, the weight of the object to be sorted is measured, but when the object to be sorted is not placed, the tare is measured last time and registered in the microcomputer 3 as the tare measurement. Update the measured memory value. This updated stored value is used as the tare weight of the sorting tray 4 in the subsequent measurement.

  Since the invention according to claim 1 arranges the two measuring instruments 1 and 2 on one sorting conveyor and measures the sorting dish 4 and the objects to be sorted, the sorting is performed at high speed and high efficiency. Can be done. The measuring instruments 1 and 2 transmit a large number of measurement data within a predetermined measurement time, and calculate a stable measurement value based on this data or an accurate weight based on the measurement data of effective measurement points. Although it is necessary to provide two measuring instruments, it is possible to maintain a long measuring time or measuring distance for each measuring instrument 1 and 2, and to perform stable and accurate measurement, and to select them. The conveyance speed of the conveyor can be increased. Further, the measurement values of these two measuring instruments 1 and 2 can be processed by one microcomputer, the configuration can be simplified, and the production can be performed at low cost.

  In the invention according to claim 2, since the two measuring instruments 1 and 2 are divided into the tare measurement in the sorting conveyor 5 and the measurement of the sorting object 4 on the sorting tray 4 on which the sorting object is placed, the sorting conveyor Without setting a special process for measuring the tare at the time of starting 5, it is possible to start measuring and selecting the object to be selected at the same time as starting, and to improve the sorting processing efficiency.

  In the invention according to claim 3, each sorting tray 4 of the sorting conveyor 5 has a minute weight that is different from the beginning or from the middle of the operation due to the attachment of foreign matter, etc., but any one measuring instrument 1 2 or 2 is in a state in which a tare measurement can be performed when there is an empty sorting dish 4, the tare measurement value can be updated by this measurement, and a special tare measurement process is not set. Accurate measurement can be performed.

  Based on the drawings, a part of the sorting conveyor 5 that measures and sorts while sorting and transporting the harvested fruits, vegetables and the like to be sorted is shown as an example. It is driven and driven by a motor. The sorting dishes 4 are arranged at regular intervals along the chain 11, and are transported by the rotation of the chain 11. The sorting tray 4 is transported while maintaining the support posture of the non-conveyed object, and a gate G for rotating the sorting tray 4 to the side is disposed at the sorting position. Is configured so that the unsorted material to be conveyed is discharged to the sorting position. Each of these gates G can be opened and closed by a command from the controller 13. Each gate G1 to G8 is provided for each sorting and discharging position. It can be guided to fall to the sorting position, and the object to be sorted on the sorting tray 4 can be sorted and discharged to a predetermined sorting position. A forcible gate G9 is provided at the end of the sorting conveyor 5, and all the remaining sorted items conveyed to the end are discharged from the forcible gate G9.

  Here, the measuring and sorting apparatus according to the present invention measures the objects to be sorted by the measuring instruments 1 and 2, and conveys the objects to be sorted to one microcomputer (microcomputer) 3 that sorts and outputs based on the measurements. The detection values of the two measuring instruments 1 and 2 arranged along the direction are input, and the measurement points A and B by the two measuring instruments 1 and 2 are set to be shifted back and forth. The sorting conveyor is driven and the objects to be sorted are measured by the measuring instruments 1 and 2. In this measurement, a measurement point A by the measuring instrument 1 and a measurement point B by the measuring instrument 2 are alternately determined at regular time intervals according to a command from the microcomputer 3, and each output signal is alternately performed to obtain one Based on the detection values at the measurement points A and B, the data is input to the microcomputer 3 and the weight of the object to be sorted is calculated and output.

  Each measuring instrument 1 and 2 uses a load cell to measure the weight of the object to be sorted. Further, in place of these load cells, a photo sensor or a camera sensor for detecting the size and color of an object to be sorted can be provided. As each sorting plate 4 of the sorting conveyor 5 slides on the upper surfaces of the measuring instruments 1 and 2, the strain value of this load cell is output as an output signal, which is received by the measurement controller 13 in analog form, and A / D converted. Perform weight conversion. This load cell often has a guide rail 14 of an appropriate length for supporting the sorting dish 4 on the upper surface, and the measurement time varies depending on this length. The controller 13 includes one microcomputer 3 and circuits 16, 17, 18, 20, and 21 that input and output to the microcomputer 3, and an LCD display unit 19. A communication circuit 16 that communicates with the management personal computer 15 writes a set value from the personal computer 15 and outputs a selection result to the personal computer 15. The communication circuit 16 performs communication with the microcomputer 3. The amplifier circuits (op-amps) 17 and 18 that receive the output signals from the measuring instruments 1 and 2, the cup sensor 23, the operation button 22, and the like are all configured to be input to the microcomputer 3. The LCD display unit 19 and the gates G1 to G8 are output. If the sorting plate 4 has a type, an I / O input circuit 20 that receives an input from the cup sensor 23 that detects the type is provided, and an I / O output circuit 21 is provided for gates G1 to G8. Provide.

  As described above, the measuring instruments 1 and 2 by the load cell measure with the intermittent output signals of a large number of measurement points A and B in the L while the sorting plate 4 slides on the guide rail 14, but stable measurement. In order to obtain the value, an appropriate length of stabilization time is required. The measured values at the beginning and the end are in an unstable state, and are not used as data. The interval between the central portions excluding the beginning and the end is adopted as the effective point M in the stable state. In addition, the measurement points A and B by the two measuring instruments 1 and 2 are set in this stable time, and the measured values at these two measurement points A and B are plotted by one microcomputer 3, so that A phase interval C is set by shifting the measurement points A and B back and forth so as not to overlap. Further, these measurement points A and B in the graph in FIG. 2 are created by changing the AD values of the output signals from the measuring instruments 1 and 2.

  The configuration shown in FIG. 1 is configured so that the measuring instruments 1 and 2 are alternately measured every other sorting tray 4 of the sorting conveyor 5, and all the sorting dishes are rotated while the conveyor 5 makes one round. 4 is measured. Since the supply device 24 for supplying the objects to be sorted is provided on the upper side of the measuring instruments 1 and 2, the measuring instruments 1 and 2 can both measure the objects to be sorted. It can be carried out. The sorting tray 4 is configured to measure the measuring instrument 1 and 2 alternately. For the form of alternating measurement by the measuring instruments 1 and 2 of the sorting tray 4, it is possible to configure as shown in FIG. The sliders 8 and 9 provided on the sorting tray 4 are slidably guided on the guide rails 6 and 7 set at different positions, and the sorting tray 4 at each measurement position is slid on the guide rail 14 of the measuring instrument 1 or measured. It can be selected and set to slide on the guide rail 14 of the vessel 2. When the sorting tray 4 having the slider 9 is transported to the position of the measuring instrument 1, the slider 9 is guided by the guide rail 6 and is not subjected to measurement by the measuring instrument 1, but the sorting tray 4 having the slider 8. Is subjected to a sorting action to slide on the guide rail 14 of the measuring instrument 1 without sliding with respect to the guide rail 6. Further, in the measuring instrument 2, since the sorting tray 4 having the slider 8 is levitated and cannot slide on the guide rail 14, the measuring instrument 2 does not receive the measurement, but the slider 9 slides on the guide rail 7. The sorting tray 4 having the slider 9 is subjected to the measuring action by the measuring instrument 2. In addition, the length of the guide rails 14 can be freely set without being substantially limited by the arrangement interval of the sorting dishes 4, so that the measurement process or the measurement time in each measuring instrument 1, 2 is sufficient. The effective point interval portion M can be lengthened, and highly accurate measurement can be efficiently performed.

  In addition, as shown in FIG. 5, this measuring and sorting apparatus is a tare measuring instrument for measuring the sorting dish 4 at the time of the starting lap on the sorting conveyor 5 in which the sorting dish 4 on which the object to be sorted is placed is conveyed. 1 and a sorting measuring instrument 2 for measuring the sorting object of the sorting dish 4 on which the sorting object is placed. The sorting conveyor 5 provided with the sorting tray 4 is driven to perform measurement by the measuring instruments 1 and 2. When the sorting tray 4 reaches the position of the first measuring instrument 1 by this activation, the tare measurement is performed. The weight, etc., is measured. Thus, by subtracting the weight or the like measured by the measuring instrument 1 from the weight or the like measured by the measuring instrument 2, the actual weight or the like of the object to be sorted can be calculated and subjected to the sorting process.

  Further, the stored value of the previous tare measurement is updated by the tare measurement after the starting lap by the measuring devices 1 and 2. When each sorting plate 4 at the time of starting the sorting conveyor 5 is initially measured by the measuring instrument 1 or 2, the tare measurement is performed, but when the second measurement is subsequently performed, the sorting plate 4 is selected. When the object to be sorted is placed on 4, the weight of the object to be sorted is measured, but when the object to be sorted is not placed, it is measured last time and registered in the microcomputer 3 as a tare measurement. The stored tare measurement memory value is updated. This updated stored value is used as the tare weight of the sorting tray 4 in the subsequent measurement.

  In FIG. 6, the sorting tray 4 of the sorting conveyor 5 is configured into two sorting trays 41 and 42 having different forms, and is alternately arranged in the front and rear directions. The measuring method by the measuring instruments 1 and 2 is performed in the same manner as in the case of FIG. In this embodiment, the sorting and discharging direction of the sorting tray 4 is set to the left side of the sorting conveyor 5, and the sorting and discharging directions are set to be different from each other so that the sorting tray 4 is discharged to the right side. .

  The perspective view of a part of selection conveyor.   The graph which shows the measurement point by two measuring instruments.   The block diagram of the controller.   The side view which shows the relationship between the slider of a selection tray, and a guide rail.   The perspective view which shows arrangement | positioning of two measuring devices.   The perspective view of the sorting conveyor which has arrange | positioned the sorting tray of two different forms.

Explanation of symbols

1 Measuring instrument 2 Measuring instrument 3 Microcomputer 4 Sorting dish 5 Sorting conveyor

Claims (3)

  The measurement of the object to be sorted by the measuring instruments (1) and (2), and two measurements arranged along the conveying direction of the object to be sorted in one microcomputer (3) which sorts and outputs based on this measurement. The detection values of the devices (1) and (2) are input, and the detection input points (A) and (B) by these two measuring devices (1) and (2) are set to be shifted back and forth. Measuring and sorting device.   A tare measuring instrument (1) for measuring the sorting tray (4) at the time of this starting lap, and a sorting tray (4) on which the sorting tray (4) for placing and transporting the sorting object is placed. The measuring and sorting apparatus according to claim 1, wherein two devices, a sorting measuring instrument (2) for measuring an object to be sorted on the sorting tray (4) placed thereon, are arranged.   The measurement sorting device according to claim 1 or 2, wherein a stored value of a previous tare measurement is updated by a tare measurement after the starting orbiting by the measuring devices (1) and (2).

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