JPS6132904Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a fruit and vegetable sorting facility in which the fruit and vegetable vegetables received as consignments are uniformly fed to fruit sorting equipment installed in a particularly wide area at a slow speed. This invention relates to a diffusion supply device.

Diffusion feeding devices for fruits and vegetables used in conventional fruit sorting facilities generally use a pipe with a diameter of about 20 mm to 60 mm, with bearings or bosses installed at both ends and a bicycle sprocket on one side. Roller conveyors are made up of attached rollers and have various widths depending on the scale. However, with the conventional device as described above, it is possible to spread almost evenly when the width of the carry-in conveyor is slightly wider than the width of the carry-in conveyor, for example, when the width of the carry-in conveyor is 300 mm and the width of the diffusion supply conveyor is 500 mm. When it had to be spread 5 to 6 times to 1800 mm, it did not flow sufficiently to both outer sides, resulting in high density near the center and sparse distribution on both outer sides, which had the disadvantage that it was not possible to supply evenly across the entire width.
Especially in recent years, it has been put into practical use to determine the grade of fruit using light beams.
In the case of a fruit sorting machine that sorts fruits into grades, it is necessary to arrange the fruits in a row and transport them one by one.In facilities with large processing capacity, several rows of fruit sorting conveyors are used, so it is evenly difficult to do so. 1500 to supply
It was necessary to create a device that could evenly distribute and supply over a large width of ~2400 mm.

The purpose of the present invention is to eliminate the drawbacks of conventional devices, and to provide a device that can evenly spread fruits and vegetables with a wide machine width but with a short machine length.

This invention uses a spiral roller that has a spiral protrusion on the outer peripheral surface of the roller of a roller conveyor that conveys fruits and vegetables and rolls in the direction of diffusion, and the conveying surface of the roller conveyor faces the direction of conveyance. Due to the upward slope, fruits and vegetables collide with the helical part formed on the outer circumference of the roller of the roller conveyor due to the action of their own gravity. It has become possible to reliably and evenly diffuse the particles in the desired direction.

That is, the present invention conveys fruits and side dishes supplied from a conveying section with a narrow width by a spreading roller conveyor having rollers that rotate and revolve in the conveying direction, and also directs the fruits and side dishes around the outer periphery of the roller in the direction of dispersion. The roller conveyor is characterized by forming a spiral portion that can be conveyed, and by making the conveying surface of the roller conveyor slope upward in the conveying direction, the fruits and vegetables are distributed and supplied in a desired direction over a wide width. This is a diffusion supply device for fruits and vegetables.

The present invention will be described below based on embodiments shown in the drawings.

In the diagram, 1 is a conveyor carrying fruits and vegetables 2,
A belt conveyor with a machine width of about 200 to 600 mm is generally used, and conveys fruits and vegetables 2 at a relatively high speed of about 20 to 40 m per minute, and has a fan-shaped chute 3 at its tip. and then supplied to the diffusion roller conveyor 4. The chute 3 having a shape that widens toward the end may be radial. The width of the diffusion roller conveyor 4 depends on the scale of the fruit sorting facility.
It has a wide width of about 1200 to 2400 mm and a short length of 1000 to 1500 mm. If the equipment is large, it will be a roller conveyor designed to have a wider width than the captain. Reference numeral 5 denotes a roller, and spiral convex portions 6 are provided on the outer periphery of the roller in opposite directions from the center of the roller in the left and right axial directions. The conveyance surface of the conveyor 4 is sloped upward, with the carry-in side being lower and the diffusion side being higher. The fruits and vegetables carried into the central part on the carry-in side are pushed up by the spiral convex part 6 of the roller that rotates in the transport direction, and roll outward along the inner surface of the spiral convex part 6. It will be spread. The speed of the roller conveyor 4 is extremely low, about 1/6 to 1/10 of the speed of the carry-in belt conveyor 1, so fruits and vegetables are transported to the spiral convex portion 6 of the roller.
Because it is forcibly conveyed, it is spread evenly across the width of the machine. 7 is a sprocket for rotation provided at one end of the roller, and 8 is a shaft of the roller, which is inserted into a shaft hole 10 provided in a ring plate of a conveyor chain 9 to form a roller chain conveyor. Reference numeral 11 denotes an autorotation chain which meshes with the roller's autorotation sprocket 8 to rotate the roller at a speed different from the speed of the conveyor chain 9. Same rotation chain 1
1 may be rotated in conjunction with a drive device (not shown) for the conveyor chain 9, or a separate drive device may be provided.

Reference numeral 12 denotes a sorting conveyor device which is connected to the outlet of the spreading roller conveyor and is used to line up the fruits and vegetables in a single line in each row onto the fruit sorting conveyor 13 provided in a plurality of rows in the width direction.

Example 1 In the apparatus configured as described above, the width of the carry-in belt conveyor 1 is 300 mm, the width of the diffusion roller conveyor 4 is 1500 mm, the alignment conveyor 12 and the fruit sorting conveyor 13 are arranged in 5 rows, and the width of the carry-in belt conveyor 1 is 300 mm. As a result of feeding 6 tons of fruit per hour from conveyor 1,
The fruits were reliably spread evenly over the entire width of 1500 mm by the action of the helical convex portions 6 of the rotating roller 5 of the spreading roller conveyor 4, which are oriented in opposite directions to the left and right, and by the action of the upward slope of the conveyor. Furthermore, the evenly spread fruit was divided into 5 equal parts at the exit of the spreading roller conveyor.
The 300 mm width is supplied to the sorting conveyor device 11 through the chute, where it is arranged in a single row and sent to the sorting conveyor 13.
It was possible to supply almost evenly to each row at a rate of 1.2 tons per hour.

Whether all the rollers should be spiral rollers on the left and right, or whether every other roller should be provided with a spiral roller, is determined by the variety, size, shape, etc. of the fruit and vegetable, and whether it is easy to roll or hard to roll. It is something that will be done.

In addition, if the supply part is not centered but misaligned with respect to the width of the roller conveyor, the convex spiral provided on the outer periphery of the roller will also change the border (starting point) of the opposite left and right directions depending on the misalignment. It can be arbitrarily formed to diffuse in each direction in proportion to the width of the area.

As described above, with this device, fruits and vegetables can be evenly and efficiently aligned and fed onto multiple sorting conveyors, improving efficiency by approximately 20%.Furthermore, the number of sorting conveyors installed can be reduced, and the efficient alignment also leads to improved sorting accuracy in the sorting machine, resulting in significant economic benefits.

[Brief explanation of drawings]

FIG. 1 shows a conventional diffusion alignment supply device.
Figure 4 shows an embodiment of the present invention, Figure 2 is a plan view, Figure 3 is a side view, Figure 4 is a plan view of the main part of the roller conveyor, and Figure 5 is a detailed view of the roller. show. 1... Carrying conveyor, 2... Fruits and vegetables, 3...
...Shute, 4...Diffusion roller conveyor, 5...
... roller, 6 ... spiral convex part, 7 ... sprocket for rotation, 8 ... roller shaft, 9 ... conveyor chain, 10 ... shaft hole, 11 ... chain for rotation, 12 ... alignment conveyor device, 13... Fruit sorting conveyor.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Fruits and side dishes supplied from a narrow width conveyance section are conveyed by a roller conveyor having rollers that rotate and revolve in the conveyance direction, and are spread over a wide width at low speed, such as a sorting machine, etc. A diffusion roller conveyor is formed by providing a spiral convex portion on the outer periphery of the roller that can roll and convey the fruits and vegetables in the right and left spreading directions; A spreading and feeding device for fruits and side dishes, characterized in that the conveying surface of the spreading roller conveyor is inclined upward in the conveying direction. 2. The fruit/seeds spreading/feeding device as set forth in claim 1, which is characterized in that rollers with flat outer peripheries are provided between the rollers with spiral portions formed on the outer peripheries. 3. Utility model registration claims 1 to 3, characterized in that the carry-in end of the diffusion roller conveyor and the conveyance section are connected by a radial or fan-shaped chute that expands in the conveyance direction. A diffusion supply device for fruits and vegetables as described in any of Item 2.