JP2760042B2 - Fruit supply device to weighing box in fruit sorting facility - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an apparatus for supplying fruits to a weighing box in a fruit sorting facility.

[Problems to be solved by the prior art and the invention]

At the sorting facility, in order to pack selected fruits etc. into empty cardboard boxes for each specified weight, as a supply conveyor to the empty boxes on the weighing machine, a wide large-size belt conveyor and a narrow width dispenser Up to the specified weight (for example, 14.5k when packed 15kg)
g) The fruits are supplied by both belt conveyors, and the remaining small amount is cut off by the large-size belt conveyor, and the supply is switched to the small amount by supplying only the small-size belt conveyor.

However, in such a mode, when the amount of sorted fruits is concentrated at one time, the supply of a small amount by the dispensing belt conveyor cannot be controlled, and the fruits are packed in a box exceeding a specified weight, which tends to cause variation in accuracy.

In addition, since the small-size belt conveyor receiving port and the large-size belt conveyor receiving port are both in a fixed relationship with respect to the draw-out conveyor discharge section, the amount of sorted materials that can be conveyed is limited by their mouth widths. When there is a variation in the amount of the conveyed material, the amount of transfer to the dispensing belt conveyor surface becomes uneven, and the time required to reach the specified weight varies, thereby lowering the work efficiency.

[Means for solving the problem]

The present invention is intended to solve the above-mentioned drawback, and is provided between the terminal portion of the draw-out conveyor 7 for receiving and transferring the sorted material from the sorting conveyor 4 and the weighing boxing portion 19 in the box A of the weighing boxing portion 19. In order to provide a guide mechanism 9 for guiding toward the end, at least two guide surfaces a and b are provided at the end side of the draw-out conveyor 7 with a drop space L to the spare box B therebetween, and the lower side guide is provided. Switching means for switching the surface b to the upright posture, and a transverse feed mechanism for sending one sorted product in the width direction at a valley portion between the upright guide surface b and the upper guide surface a; A state in which the sorted material from the conveyor 7 is supplied to the box A across the falling space L, and one of the sorted materials from the draw-out conveyor 7 is supplied to the box A while dropping the excess from the falling space L. As a configuration that switches to a small supply state The structure of the fruit supply device to the weighing box in the fruit sorting facility will be adopted.

[Functions and Effects of the Invention]

Sorted materials from the sorting conveyor 4 are transported by the draw-out conveyor 7, but are initially in a fully supplied state with the guide surfaces a and b of the guide mechanism 9, and the entire amount is in the weighing box 19.
Is supplied into the empty box A waiting at
By erecting the lower guide surface b and operating a traverse mechanism such as the dispensing belt conveyor 10, the state is switched to a small supply state in which the sorted material received on the upper guide surface a is supplied to the box A while being traversed, and particularly excessively. Can be guided and dropped into the subsequent spare box B beyond the upper guide surface a, so that the feeding by the transverse feed mechanism is ensured and the weighing accuracy is improved.

In addition, the width of the upper guide surface a can be set substantially equal to the exit width of the draw-out conveyor, and the above-mentioned lateral feed is performed without interruption.

〔Example〕

 An embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows, for example, a potato sorting facility as a sorting object. In FIG. 1, reference numeral 1 denotes a receiving unit, 2 denotes a grade sorting unit by a grade evaluator, 3 denotes an alignment feeding unit, and 4 denotes a sorting conveyor. A shape detector 5 such as a CCD camera is provided at the starting end side of the sorting conveyor 4, and classifiers 6, 6,... Are set at a plurality of places from a middle part of the conveyor 4 to a discharge part.
Belt-type conveyer that can be used for each classifier
7,7… are arranged.

A fixed chute 8 is provided at the end discharge section of the above-mentioned transfer conveyor 7, and a guide mechanism 9 as described below is provided at appropriate intervals L. That is, a dispensing belt conveyor 10 capable of moving the transfer surface a in an inclined shape and moving in a direction perpendicular to the pull-out conveyor 7 by driving, and a switching plate provided in an inclined shape so that the transfer surface b is connected to the transfer surface a. The dispensing belt conveyor 10 receives the predetermined weighing signal from the weighing machine, and switches to the driving state.The switching plate 11 receives the predetermined weighing signal and rotates around the support shaft 12 at the upper end. The switching means for switching to the standing posture is configured.

13 is a fixed branch plate provided in the upper part of the spare box described later, 14 is a fixed dispensing chute provided below the end of the transfer by the dispensing belt conveyor, and 15 is provided to be connected to the dispensing chute 14 The auxiliary chute is configured to rotate around the support shaft 16 in response to a specified weight measurement signal from the weighing box.

Reference numeral 19 denotes a weighing box, which has a configuration in which the end side of the switching plate 11 can be viewed from an empty box placed on the platform scale 20.

21 is a box conveyor, which sequentially transports empty boxes,
The operation of an extruding arm (not shown) by receiving a weighing signal for filling a predetermined amount into the box A of 19 causes the weighing box part to be operated.
The box filled with a predetermined amount of the sorted material is sent out to the conveyor 22 side by receiving the empty box pushing action. In addition, immediately after the empty box on the platform scale 20, a spare box B
The box conveyor and the extruding arm can be linked to each other so that they can approach and stand by.

 The operation of the above example will be described.

The received potatoes are visually inspected by a grade evaluator in a grade sorting section 2 and sorted according to grades such as excellent and honor. While maintaining the divided state, they are aligned in a line in the next stage of the alignment supply unit 3.

The above potato is supplied to the sorting conveyor 4, and the outer diameter shape is detected by the shape detector 5 at the start end side. The detection signal detected for each potato is input to a controller (not shown), which calculates which classification unit 6, 6... Should output an operation signal, and operates the discharge mechanism from the sorting conveyor 4.

The potatoes from the sorting conveyor 4 are received and transferred by the draw-out conveyor 7, flow down the chute 8, reach the guide mechanism 9 over the space L. In this guide mechanism 9, the dispensing belt conveyor 10 is in a non-driving state, and the switching plate
Numeral 11 is inclined (solid line in FIG. 2), and the entire amount of potato is supplied to the empty box on the platform scale 20 by the transfer surface a of the dispensing belt conveyor 10 and the transfer surface b of the switching plate 11.

The filling of the box A on the platform scale 20 proceeds, and a predetermined weight (for example, 9.5 k) slightly smaller than a specified weight (for example, 10 kg) to be shipped.
When g) is reached, the controller outputs a weighing changeover signal. In response to the weighing switching signal, the guide mechanism 9 is switched to the small supply state, that is, the dispensing belt conveyor 10 is switched to the driving state, and the switching plate 11 is also pivoted.
It turns around 12 and changes to the standing posture (the virtual line in FIG. 2).

As a result, the selection from the chute 8 is switched to the switching plate 11.
Once, and the sorted material reaching the valley portion between the switching plate 11 and the transfer surface a of the dispensing belt conveyor 10 is laterally fed by the transfer operation accompanying the driving of the belt conveyor 10,
It is supplied into the box A on the platform scale 20 through the dispensing chute 14 and the sub-chute 15, but the transfer surface a can be set to be substantially equal to the width of the discharge portion of the draw-out conveyer 7, resulting in a decrease in working efficiency. Absent. The width of the belt conveyor 10 is 1
The size is set to a size that allows the individual to ride on, and if the sorted material supplied one after another becomes excessive, it is supplied from the equal falling space L which collides with the sorted material in the middle of transfer via the branch plate 14 into the subsequent spare box B. . For this reason, it is not necessary to limit the supply amount even in the small supply state, and the work efficiency is improved.

When the filling amount reaches the specified weight by the weighing signal from the weighing boxing unit 19, the boxes are fed out and replaced, and the filled box A reaches the regular position on the conveyor conveyor and the spare box B reaches the regular position on the platform scale 20. In addition, the drive of the draw-out conveyor 7 and the dispensing belt conveyor 10 is stopped by the signal, the sub-chute 15 rotates around the support shaft 16 (the imaginary line in FIG. 3), and the sorted material stays at that position. I do.

FIGS. 4 and 5 show another embodiment, in which the guide mechanism 9 is a mountain-shaped fixing plate 24 which also serves as a branch plate and forms a transfer surface a.
And a dispensing conveyor 25 having a transfer surface b in the form of a belt conveyor. When the dispensing conveyor 25 reaches a predetermined weight close to a specified weight, the dispensing conveyor 25 switches to an upright posture as shown in FIG. This is a configuration that switches to a possible driving state.

[Brief description of the drawings]

1 shows an embodiment of the present invention. FIG. 1 is an overall plan view, FIG. 2 is a side view of a main part, FIG. 3 is a front view thereof, and FIGS. FIG. In the figure, 4 is a sorting conveyor, 7 and 7 are draw-out conveyors, 8 is a chute, 9 is a guide mechanism, 10 is a dispensing belt conveyor, 11 is a switching plate, 12 is a spindle, 13 is a branch plate, and 14 is a dispensing chute. , 15 is a sub-chute, 19 is a weighing box, and 20 is a platform scale.

Claims (1)

(57) [Claims] 1. A weighing box 19 is provided between a terminal portion of a draw-out conveyor 7 for receiving and transferring sorted materials from a sorting conveyor 4 and a weighing boxing portion 19.
In order to provide a guide mechanism 9 for guiding the weighing box 19 toward the box A, a spare box B is provided at the end of the drawer 7.
And at least two guide surfaces a and b separated by a falling space L, and a switching means for switching the lower guide surface b to the upright posture, and a switch between the upright guide surface b and the upper guide surface a. A traverse mechanism for feeding one sorted product in the width direction in the width direction at the valley portion;
And a small amount of one of the selected materials from the draw-out conveyor 7 supplied to the box A while dropping an excess of the selected material from the draw-out conveyor 7 from the falling space L. A fruit supply device to a weighing box in a fruit sorting facility configured to switch to a supply state.