JP2007045629A - Weight sizer sorting tray support device - Google Patents

Abstract

[PROBLEMS] To achieve a weight balance between a left and right as a weight sizer in a state in which a selected item is placed and conveyed, and to increase a falling discharge angle, to increase weighing and sorting accuracy, and to be quick and accurate. Of a sorting tray support device capable of performing proper sorting and discharging.
A mounting bracket 2 is arranged along a transport chain 1, and each mounting bracket 2 can be moved up and down directly above the transport chain 1 via a parallel link 3, and the width direction of the transport chain 1 is set. In a weight sizer provided with a support arm 5 that can be tilted and rotated by a predetermined angle around the arm shaft 4 along the center portion, a sorting tray 6 can be turned to the outside on the upper side of each support arm 5. It is set as the structure of the sorting tray support apparatus characterized by having supported. The overturning rotation of the sorting tray 6 is greatly inclined as a two-stage rotation mode including the rotation of the support arm 5 and the subsequent rotation with respect to the support arm 5.
[Selection] Figure 1

Description

  Weighing fruits and vegetables placed on the sorting plate while rotating a large number of sorting plates on the transport chain, and weighing them to fall down at the sorting position. With regard to the sizer support device for the sizer, the balance of the left and right weight support by the transfer tray of the size plate is maintained, and accurate weighing and selection and discharge by the size plate are performed accurately.

  Mounting brackets are arranged along the transport chain, and each mounting bracket is provided with a support arm that can be raised and lowered via a parallel link. This support arm is formed as a single unit with a sorting tray, and can be moved up and down directly above the transfer chain, and can be rotated left and right around the arm axis along the center in the width direction of the transfer chain. It is supported. The horizontal tilt angle of the support arm integrated with this sorter is limited by the components along the transport direction, such as the lower transport chain. It has been.

  In the conventional configuration in which the support arm integrated with the sorting tray is turned over, it is difficult to secure a sufficient inclination angle to the side of the sorting tray unless the turning angle of the support arm is set large. It is difficult to sort and discharge the goods quickly.

  According to the first aspect of the present invention, the mounting bracket (2) is disposed along the transport chain (1), and each mounting bracket (2) is connected to the transport chain (1) via a parallel link (3). In a weight sizer provided with a support arm (5) that can be moved up and down and that can be tilted and rotated to the side by a predetermined angle around an arm axis (4) along the center in the width direction of the transport chain (1). The sorting tray support device is characterized in that the sorting tray (6) is supported on the upper portion of each support arm (5) so as to be able to turn and rotate outward. By driving the transport chain (1), the support arm (5) attached to each mounting bracket (2) via the parallel link (3) and the sorting tray (6) are transported. In this transport process, the weight of the sorting object placed on the sorting dish (6) is measured, and when it is transported to the sorting position, the sorting dish (6) falls to the side, and the sorting object moves to a predetermined sorting position. Discharged. In the transfer of the selection by the selection plate (6), the support arm (5) is pivoted sideways around the arm axis (4) along the center in the width direction of the transfer chain (1), Even if the selected item on the selection plate (6) is shifted to the side, the weight balance on the left and right as a whole will not be greatly lost. When the sorting dish (6) is turned over to the outside with respect to the rotation of the support arm (5), the inclination angle of the sorting dish (6) to the lateral side is increased, and the sorting object is discharged. Is done promptly. In this way, the turnover of the sorting tray (6) is largely inclined as a two-stage rotation form of the support arm (5) and the subsequent rotation of the support arm (5).

  According to the second aspect of the present invention, the guide rails (10) and (11) of the load cell (9) are slid and weighed by sliding the sliders (7) and (8) on the left and right sides of the support arm (5). It is characterized by providing. The sorting tray (6) on which the sorting object is placed is supported via a support arm (5) that is rotatable up and down via a parallel link (3) and rotatable around an arm axis (4). In addition, the sliders (7), (8) on the left and right sides of the support arm (5) are supported by the guide rails (10), (11) of the load cell (9) and weighed. For this reason, even if the sorting thing put on a sorting tray (6) is in the state where it was shifted in the right-and-left direction, or the shape of the sorting thing itself was a long form, and the thing with large deviation of weight Accurate weighing can be performed.

  The invention according to claim 3 is characterized in that the slider (7) or (8) of the support arm (5) is pushed and turned by a fall guide (12) that turns around the axis. is there. When the sorting tray (6) is conveyed to the sorting position, the tipping guide (10) rotates and pushes the slider (7) or (8) of the support arm (5). When the slider (7) or (8) is pushed, the support arm (5) is rotated around the arm axis (4), and the sorting tray (6) is moved outward with respect to the support arm (5). It is greatly turned over. The tilting angle due to the turning rotation of the sorting tray (6) is large, and the sorting is discharged quickly.

  According to the first aspect of the present invention, the sorting tray (6) supported via the support arm (5) has an arm shaft (4) at the center of the width region of the transport chain (1) in the transport direction. In order to reduce the lateral rotation angle of the support arm (5) around the arm axis (4) and to support the left and right as a weight sizer, The weight balance can be achieved, and the sorting tray (6) can be turned to the side with respect to the support arm (5) to be turned sideways to increase the falling discharge angle, thereby increasing the weighing and sorting accuracy. Can be quickly and accurately sorted and discharged.

  The invention according to claim 2 is the guide rails (10), (1) in which the weight of the sorting product (6) slides the sliders (7), (8) on both the left and right sides of the support arm (5). The load cell (9) is used to weigh the weight acting on the sorting plate (6), so that it is accurately weighed regardless of the placement position of the sorting object in the sorting dish (6), the placement state, the position of the center of gravity due to the shape of the sorting object, etc. .

  According to the third aspect of the present invention, the overturning rotation of the sorting plate (6) rotates the overturning guide (10), and the slider (7) or (8) of the support arm (5) is moved to the arm shaft ( 4) Since the slider (7) or (8) of the support arm (5) is always slidably guided to the guide rail and the like because it is rotated around 4), the frictional resistance is reduced, and it is accurate and smooth. Can be selected and discharged. Moreover, since the slider (7) or (8) is instantaneously pushed and rotated by the rotation of the fall guide (10), durability can be improved.

  Based on the drawings, the weight cider arranges the mounting brackets 2 along the transport chain 1 extending between the front and rear sprockets 15 and 16, and each mounting bracket 2 has a parallel link 3 protruding backward in the transport direction. And a support arm 5 that can be moved up and down right above the transport chain 1 and that can be rotated by a predetermined angle around the arm shaft 4 along the center in the width direction of the transport chain 1. On the upper part of each support arm 5, the sorting tray 6 is supported so as to be able to turn over to the laterally outer side. Further, there are provided guide rails 10 and 11 of a load cell 9 for weighing by sliding sliders 7 and 8 on both left and right sides of the support arm 5. In addition, the slider 7 or 8 of the support arm 5 is pushed by the fall guide 12 that rotates about the axis, and is configured to turn over.

  A supply conveyor 17 is provided at the start end of the weight sizer to load and convey the sorted product, and the loaded material is placed and supplied to each sorting tray 6 of the weight sizer. The conveyance chain 1 is stretched with the axes of the sprockets 15 and 16 facing up and down. The mounting bracket 2 is mounted on the link pin 18 of the transport chain 1. On the sorting frame 19, a chain cover 20 that covers the transport chain 1 and a rail 21 that slidably fits and guides a bifurcated slider 22 on both the left and right sides of the mounting bracket 2 are laid. A load cell 9 that weighs the sorting material supplied to the sorting tray 6 is provided in the start end conveyance area of the weight sizer, and a sorting discharge unit that discharges the sorting substance is arranged for each of a plurality of sorting classes in the conveyance area after the load cell 9 position. The

  The mounting bracket 2 is formed in a substantially box shape, and the bottom side portion is fastened and attached to the link plate portion of the transport chain 1 by a link pin 18. A pair of upper and lower parallel links 3 are provided inside the mounting bracket 2 so as to be rotatable up and down around the link pin 23, and a link hitch 24 is pivotally supported by a link pin 25 at the rear end of the parallel link 3. A support arm 5 in the form of a plate is attached to the rear side of the link hitch 24 so as to be rotatable around the arm shaft 4. The arm shaft 4 is on the extension line of the movement path of the link pin 18 of the transport chain 1 and is provided along the substantially central portion of the chain width. This support arm 5 pivotally supports a sorting pan 6 that can be turned to the outside on one side of the left and right with a tipping pin 26, and has sliders 7 and 8 formed on both left and right ends. An arcuate guide hole 28 for fitting and guiding the protruding pin roller 27 is formed on the side. An engaging projection 29 is formed at one end of the guide hole 28 and the pin roller 27 is engaged to maintain the conveying posture A of the support arm 5. The height of the guide hole 28 is formed to be appropriately larger than the diameter of the pin roller 27 so that the support arm 5 can move freely through the parallel link 3, and the engaging protrusion 29 causes the pin roller 27 to move. By being pivotally engaged beyond this, the transport posture A of the support arm 5 can be stably maintained. When the support arm 5 is rotated to one side and the end of the guide hole 28 opposite to the engaging projection 29 is locked to the pin roller 27, the support arm 5 is rotated. As a result, the sorting tray 6 is reversed around the overturning pin 26 to the discharge posture B. The sliders 7, 8 form an inclined edge 30 that is lowered at the outer end when the support arm 5 is in the transport posture A, and slide on the outer end of the guide rails 10, 11 and the tipping guide 12 surface. A contact edge 31 is formed. The sliding contact edge 31 is formed as a slanted inclined edge in a form that can be easily lifted up by the guide rails 10 and 11 and the fall guide 12. A stopper 32 for receiving the sorting tray 6 in a horizontal posture is provided on the upper portion of the support arm 5 so that the stopper 33 on the bottom of the sorting tray 6 can be received. Further, stoppers 34 and 35 for locking the fall position of the sorting pan 6 around the fall pin 26 are formed between the support arm 5 side that supports the fall pin 26 and the sorting tray 6 portion.

  The sorting dish 6 can be formed in different forms depending on the object of the sorting object, but is formed in a bucket shape that is long on the left and right sides, as well as general vegetables and fruits, long vegetables such as curry and eggplant, We can weigh and sort sardines, hamachi, fresh fish such as red sea bream. The guide rails 10 and 11 for sliding the sliders 7 and 8 are configured as a part of the load cell in the weighing process area. Attached on support brackets 41 at both left and right ends of the weighing shaft 40 of the load cell 9 provided in the sorting frame 19, are shortly provided only in the weighing stroke area in the conveying stroke by the sorting chain 1. The weight received by the left and right guide rails 10 and 11 is weighed and detected by the load cell 9. This weighing can be received by the guide rails 10 and 11 on both the left and right sides to obtain the weighing weight of the selected item.

  The tipping guide 12 is provided on the side opposite to the side on which the support arm 5 is rotated around the arm shaft 4, and is disposed at each sorting and discharging position below the movement path of the slider 7 on this side. . The overturn guide 12 is configured to rotate around the solenoid shaft 43 along the front-rear direction with respect to the bracket 42 on the sorting frame 19. The solenoid shaft 43 has a rotary solenoid 44 and is reciprocated by a predetermined angle. The arm 45 of the fall guide 12 is fixed to the tip of the solenoid shaft 43. The tipping guide 12 is configured such that the outer peripheral rotation surface forms a conical inclined surface C around the solenoid shaft 43, and the rotation direction cross section is also formed in an arc shape or a curved surface shape D. When the slider 7 is pushed up by this rotation, the lifting is performed accurately and smoothly. Such a fall guide 12 is normally located outside the movement path of the slider 7 of the support arm 5, but when the slider 7 reaches the sorting and discharging position, the solenoid shaft 43 is rotated from the outside to the inside, and this The slider 7 is scooped up by the upper peripheral curved surface D and the inclined curved surface C of the fall guide 12, and the support arm 5 is rotated around the arm shaft 4 toward the sorting and discharging side. Each sorter discharge unit of the weight sizer is provided with a shooter 47 that receives a sorter discharged from the sorter 6.

  As the supply conveyor 17 is driven, one selected item is supplied and placed on the selection tray 6 at the start end of the weight sizer. Each support arm 5 and each sorting tray 6 supported on the upper part are transported by driving the transport chain 1. At this time, the support arm 5 and the sorting tray 6 are maintained in the transport posture A in the horizontal state. The sliders 22 on the left and right sides of the mounting bracket 2 that supports the support arm 5 are fitted and supported by the rails 21 and are moved and guided by driving of the transport chain 1. When the sorting tray 6 that has received the sorted product is moved to the weighing position, the left and right sliders 7 and 8 of the support arm 5 are slid on the upper surfaces of the guide rails 10 and 11 to be in the weighing posture E. The weight supported by the guide rails 10 and 11 is detected by the load cell 9 and becomes the weighed weight of the selected item. The weighing by the load cell 9 is performed by rotating the support arm 5 around the arm shaft 4 and the load acting on the arm shaft 4 itself by the left and right guide rails 10 and 11 and detecting it by the load cell 9. Specify the sorting discharge position. Since the weight of the sorting object is calculated based on the total weight received by the left and right guide rails 10 and 11, the placement state of the sorting object on the sorting dish 6 is deviated left and right, or the sorting object itself is long. Even if the position of the center of gravity is shifted to the left and right, accurate weighing can be performed by weighing through the left and right guide rails 10 and 11.

  When the weighing operation of the sorting tray 6 is finished in this way, the sliders 7 and 8 are moved away from the guide rails 10 and 11 to the carrying posture A, and are conveyed to the sorting discharge area of each weighing section. The solenoid 44 is actuated by the output from the controller 46 based on the weighing so that the overturning guide 12 is rotated around the solenoid shaft 43 and is pushed up so that the slider 7 of the support arm 5 is scooped up by being transported through the sorting and discharging position. Then, the support arm 5 is rotated around the arm shaft 4. By the side rotation of the support arm 5, the sorting tray 6 received by the stoppers 32, 33 and the like is turned around the overturning pin 26 and discharged to the sorting discharge position. The sorting tray 6 is tilted outward by the rotation of the support arm 5 to be in the discharge posture B and is rotated in the reverse direction. Therefore, even if the rotation angle of the support arm 5 is limited to be small, the sorting tray 6 No. 6 is largely inclined or reversed so that sorting and discharging can be performed quickly. When the discharge operation is finished, the support arm 5 and the sorting tray 6 are returned to the discharge posture A, and are returned to the start stroke for receiving the supply of the selection from the supply conveyor 17.

  The front view of the conveyance posture of a weight sizer, and a weighing posture.   The front view which shows the effect | action of the sorting discharge attitude | position.   The side view of the fall guide part.   The front view which shows the action state.   The top view of a part of the weight sizer.   The side view.   The arrangement | positioning side view of the weight sizer, and the control block diagram of a rotary solenoid.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyance chain 2 Mounting bracket 3 Parallel link 4 Arm axis 5 Support arm 6 Sorting pan 7 Slider 8 Slider 9 Load cell 10 Guide rail 11 Guide rail 12 Falling guide

Claims (3)

  A mounting bracket (2) is arranged along the transport chain (1), and each mounting bracket (2) can be raised and lowered directly above the transport chain (1) via a parallel link (3), and In a weight sizer provided with a support arm (5) that can be rotated by a predetermined angle to the lateral side around an arm axis (4) along the center in the width direction of the transport chain (1), each of the support arms (5) A sorting tray support device, characterized in that a sorting tray (6) is supported on the upper part so as to be able to turn over.   The guide rails (10) and (11) of the load cell (9) are provided for sliding the sliders (7) and (8) on both left and right sides of the support arm (5). Item 2. A weight tray sizer support device according to Item 1.   The slider (7) or (8) of the support arm (5) is tumbled and rotated by hitting with a tumbling guide (12) that rotates about an axis. Weight sizer sorter support device.

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