JPS6115996Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a bucket discharge device for discharging selected fruits from the bucket of a fruit sorting machine by tilting the bucket.

Two chains stretched at predetermined intervals are connected at equal intervals using connecting metal fittings, and a plurality of buckets are attached to the connecting metal fittings at regular intervals in the width direction (horizontal direction) to form multiple rows of chains between the left and right chains. A fruit sorting machine with a bucket conveyor is generally used as a bucket conveyor with 3 to 6 rows, but the 5 to 6 row type used in particularly large fruit sorting facilities has a bucket row interval P ( (Fig. 3) was large, it was difficult to reach the 3rd and 4th rows and it was difficult to manually put the fruit into the bucket in the manual grading section. Conventionally, these ejecting devices have been used to change the running path of the traveling piece by tilting the switching rail itself obliquely using either the entrance side or the exit side of the switching rail as a fulcrum, as shown in Fig. 1. These conventional methods require a rotary solenoid at the fulcrum part of the switching rail, or if another operating mechanism is used, a bearing device for the fulcrum shaft is required, and these devices are installed on the side of the switching rail. A space B (Fig. 3) is required for mounting the conveyors, and when the bucket conveyors are arranged in multiple rows in close proximity, the distance between the rows cannot be made small.
In addition, with these conventional ejection devices, when the bucket is run at high speed and the switching rail is diagonally lowered, the high-speed traction force of the chain allows the running piece to reach the next running rail before it falls too far. Therefore, there was a drawback that the running pieces collided with the running rail.

The present invention was devised to eliminate these drawbacks, and is designed to reduce the interval between the buckets of a multi-row bucket conveyor, and to prevent the above-mentioned collision troubles. Since the rail is not rotated but kept horizontal and slid upward in parallel to guide the tongue piece running on the running rail downward, the mounting part of the switching rail is made of a thin B ₀ ( 10th
Figure) can be configured with bucket row spacing P ₀ (10th
(Fig.) is smaller, which improves the workability of adding fruit and prevents the trouble of the tongue colliding with the next running rail.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Diagrams showing embodiments of the present invention will be described below.

Reference numeral 1 designates a conveyor chain, in which two rows on the left and right are connected by connecting fittings 2 at predetermined intervals, a large number of connecting fittings 2 are provided at equal intervals in the direction of movement, and a bucket 3 is attached to each connecting fitting to form a bucket chain conveyor. There is. The spacing between the two chains is large or small depending on the scale of the fruit sorting machine, and the small one is the spacing for attaching two buckets 3 to the connecting fitting 2 at equal intervals in the left and right direction (width direction).
In the larger case, the connecting fittings 2 are made longer and a plurality of five or six bucket carts 3 are attached at equal intervals in the left-right direction to form a plurality of rows of five or six bucket cart conveyors.
The effect of the present invention is even greater when it is applied to a bucket conveyor with 5 or 6 rows.

The bucket 3 consists of the main parts of a bucket holder 4, which is the attachment part to the connecting fitting 2, a bucket arm 5, and a saucer 6. The bucket arm 5 has one end attached to the bucket holder 4 and rotates with a fulcrum pin 7. It can be attached freely, and a tongue piece 8 for holding the bucket arm 5 horizontally is attached to one side of the tip part and protrudes laterally, and the tongue piece 8 is received by a running rail 9 so that it can run horizontally. When a part of the traveling rail 9 is cut out, the tongue piece 8 falls from the cut part, so that the bucket bag 3 is vertically suspended downward.

10 is a switching rail that is provided by cutting out a part of the running rail 9, and the length is approximately 3 pitches.
The entrance 10 is about 1/2 to 1/4 in size, and the top surface 10a is usually at the same level as the top surface 9a of the traveling rail 9.
b. The exit 10c is placed horizontally close to the front and rear running rails, and the back surface 10d has a wedge-shaped side surface that slopes downward from the entrance to the exit. It seems like it's going up. 12 is the support member 1
1 is an actuating device that moves the frame 13 up and down.
The operating portion 12a is connected to a portion of the support member 11 and vertically moved up and down by a predetermined stroke. 14 is a guide device for smoothing the vertical vertical movement of the support member 11, 15 is a stopper for preventing lowering, and 16 is a return tension spring. The support member 11 is designed so that the tongue piece 8 that has traveled on the traveling rail 9 can pass through the upper surface 10a of the switching rail 10 when it is lowered, and the lower back surface 10d when it is higher. A relatively thin plate-like or rod-like member is attached to the outer surface of the switching rail 10 in a thin manner. The actuating device 12 may be a direct current solenoid, an alternating current solenoid, an air cylinder, or other device that performs linear motion with a small stroke. Also, the guide device 14
The vertical movement of the support member 11 is smoothed by sandwiching the support member 11 vertically and horizontally with groove wheels, or by sandwiching both sides with concave grooved rails.

To explain the operation of the discharging device configured as above, a weighing device is provided at a predetermined position of the fruit sorting machine bucket conveyor, and the fruits placed on the bucket are weighed, and the fruits are weighed at a certain distance from the weighing device. A discharge device for each class is provided at a position apart from the bucket, and the actuation device is actuated by a discharge signal sent from the weighing device in synchronization with the bucket, raising the switching rail 10 upwards and moving the traveling rail 9. The tongue piece 8 that has traveled above is the lower back surface 10d of the switching rail 10.
guided to descend downwards. At this time, the lower surface of the exit end 10c of the switching rail that has gone up is located at the same level as or lower than the lower surface of the next closely connected running rail, so the tongue piece 8 collides with the previous running rail. The bucket descends without any hesitation, becomes vertically suspended, and discharges the fruits on the saucer downwards. Therefore, even if the bucket cart 3 is run at high speed, the tongue piece 8 runs at high speed without colliding with the running rail in front. On the other hand, for the bucket to which the discharge signal is not sent, the switching rail is lowered and its upper surface 10a is at the same level as the running rail, and the gap between it and the running rail is small and close, so the tongue piece runs horizontally above it. Runs stably.

In the present invention, since the discharging device is configured as described above, it can be installed between the rows of buckets with a narrow width and a thin shape.The interval between the rows of buckets is reduced and the width of the machine as a whole is narrowed, making it easier to load fruit. This reduces worker fatigue and greatly improves work efficiency.

In addition, the present invention moves the switching rail vertically up and down, and gradually guides the tongue piece downwards on the downward slope of the lower surface of the switching rail. Since the tongue piece descending in a parabola is guided downward by the gravity of It is something that can be done.

Furthermore, the present invention has a structure in which the switching rail and the actuating device are directly connected to each other, rather than using a complicated connection such as using an arm or a pin link, so it is possible to create a durable device that is free from failures. It is something that can be provided.

[Brief explanation of the drawing]

Figures 1 to 3 are explanatory diagrams of a conventional discharge device,
Figure 1 A and B are side views, Figure 2 is a plan view, and Figure 3 is a side view.
The figure shows a front view. Figures 4 to 10 show an embodiment of the present invention, where Figure 4 is a side view of the bucket chain conveyor, Figure 5 is a plan view thereof, Figure 6 is a front view of Figure 4, and Figure 7 is a side view of the bucket chain conveyor. 8 shows a side view of the ejecting device, FIG. 8 shows an explanatory view of the ejecting operation, FIG. 9 shows a plan view of FIG. 7, and FIG. 10 shows a front view of the ejecting device. 1...Conveyor chain, 2...Connection fittings, 3...
...bucket, 4...bucket holder, 5...bucket arm, 6...saucer, 7...fulcrum pin, 8
... Tongue piece, 9 ... Traveling rail, 10 ... Switching rail, 11 ... Supporting member, 12 ... Actuation device, 1
3... Frame, 14... Guide device, 15... Stopper, 16... Return spring, P... Bucket row spacing, B... Discharge device installation space.

Claims (1)

[Scope of claim for utility model registration] Between two chains that run and rotate endlessly,
A plurality of buckets are attached at equal intervals on the left and right sides so that they can tilt and hang freely, and the tongues protruding from the side of each bucket are received by the feed rail. In the discharging device of a sliding type fruit sorter, the bucket is held horizontally by holding the bucket horizontally, and a part of the running rail is cut out at a predetermined position to tilt the bucket downward. A switching rail having a wedge-shaped side surface whose lower back surface is inclined downward from the entrance in the direction of travel is provided, an actuating device for vertically moving the switching rail up and down is provided directly below the switching rail, and the switching rail is Discharging of a sliding type fruit sorter bucket, characterized in that when the tongue piece is raised a predetermined distance upwardly, the tongue piece is guided downwardly by a downward slope on the lower back surface of the switching rail and is lowered. Device.