JPH0125670Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Field of the invention This invention is used when sorting fruits such as Satsuma mandarin oranges, navels, Iyokan oranges, pears, and apples into multiple sizes according to standards, etc. This invention relates to a sorting device for fruits, etc.

(b) Background of the idea For example, a plurality of receiving plates for transporting objects to be processed in a static state are stacked vertically on the upper part of a pressurizing body, and each receiving plate has a larger number of receiving plates than the lower receiving plate. A sorting hole with a large diameter is provided, and while the objects to be processed are fitted into the sorting holes of the laminated receiving plates and transferred, the lower receiving plates are rotated downward in order, and the objects are adhered to the pressurizing body. In a sorting device configured to drop objects at different positions depending on their size, a plurality of grooves are used as means for aligning and feeding objects to be processed to a feeding mechanism that supplies objects to be processed one by one to each sorting hole. One possible method is to use a vibrating conveyor, but using a vibrating conveyor not only makes the device expensive;
There is a lot of noise and vibration, and the feed speed cannot be adjusted, and if the weight of the workpiece differs, the feed speed will differ, making it impossible to feed the workpiece to the feeding mechanism at a fixed pitch and at the same timing. ,
It was not possible to reliably and regularly supply the material from the input mechanism to the sorting hole, reducing the efficiency of the sorting process.

(C) Purpose of the invention The purpose of this invention is to provide a device for arranging fruits, etc., which can arrange and transport fruits, etc., at a fixed pitch and at the same timing, regardless of the size or weight of the objects to be processed. do.

(d) Structure of the invention This invention includes a plurality of fixed guide rods arranged in parallel at regular intervals along the direction of fruit transport in the front stage of a sorting device that sorts objects to be processed at predetermined intervals.
The pair of left and right fixed guide rods form a plurality of guide paths for arranging the objects to be processed in a line and supplying them to the sorting device, and each of the guide paths at a lower position than the fixed guide rods includes: The apparatus is characterized in that it is a fruit arranging device equipped with a transfer conveyor consisting of screw rollers and drive rollers that rotate in the same direction.

(e) Function of the invention In the apparatus for arranging fruits, etc. of this invention, the objects to be processed are fed into a guiding path formed by a pair of fixed guide rods, and the workpieces are transported by screw rollers and drive rollers rotating in the same direction. During this transfer, the workpiece enters the groove of the screw roller and is transferred at regular intervals.Furthermore, since the drive rollers rotate in the same direction, there is no material to be processed between both rollers. Furthermore, even if a kinetic force is exerted on the workpiece to overcome the drive roller based on the rotation in the same direction, the fixed guide rod on the side of the movement direction prevents this. As a result, the objects to be processed are aligned and transported by the screw roller at a predetermined speed and pitch.

Furthermore, by varying the rotational speed of the screw roller and drive roller, any transfer speed can be obtained.

(f) Effects of the invention As a result of the above, according to this invention, it is possible to transfer any workpieces of different shapes and weights in a line at a constant speed and at a fixed pitch, and there is no fixed guide that partitions each transfer conveyor. Since the rod is installed at a higher position than the guideway, this fixed guide rod reliably prevents the objects to be processed from flying out onto other transfer conveyors installed in parallel during transfer, increasing the processing speed. , processing efficiency can be improved, and further, by changing the rotation speed of the screw roller, an arbitrary feed rate can be obtained, and the processing can be performed at the same timing as the sorting and tamping of the sorting device installed at the rear stage of this alignment device. Processing materials can be transported in an aligned manner, supply to the sorting device can be performed reliably and stably, and the efficiency of sorting processing work can be stabilized at a high position.

Furthermore, although the workpiece is rotated as it is transported by the screw roller, the drive roller rotates in the same direction as the screw roller and does not prevent the workpiece from rotating. There is no possibility that the material will be pinched between the screw roller and the drive roller, or separated from both rollers, thereby interrupting the conveyance.

Furthermore, when using a transfer conveyor consisting of screw rollers and drive rollers, the manufacturing cost is extremely low compared to when using a vibrating conveyor, there is no noise or vibration, and the distance required for alignment is short. This has the advantage of making the device more compact.

(g) Example of the invention An example of the invention will be described below in detail based on the drawings.

In the apparatus S for sorting fruits and the like shown in FIGS. 1 to 7, 1 is a sorting conveyor, and has first, second, and third receiving plates 3a, 3 on which objects 2 to be processed are placed.
b, 3c and a contact body 3d that contacts the object to be processed 2 are stacked in the vertical direction, laminates 3, 3...
It is composed of a transfer body 4 for transferring the stack 3 on an endless transfer path, and a guide 5 for preventing the downward rotation of the receiving plates 3a, 3b, and 3c.

The first, second, and third receiving plates 3a, 3b, and 3c of each laminate 3 in the transfer body 4 are each made of a synthetic resin plate, and are attached to the front side edge 3' in the transfer direction indicated by the arrow R. Rings 8a, 8a, 8a,
8a, it is rotatably connected to the shaft 8 and held in a suspended state.

On the left and right edges of the rear side of each receiving plate 3a, 3b, 3c, protrusions 9a, 9a, 9 are provided which protrude larger in order from the lower receiving plate to the left and right sides as the upper receiving plate becomes larger.
b, 9b, 9c, and 9c are provided integrally.

Furthermore, the first to third receiving plates 3a, 3b, 3c have first, second, and third sorting holes 10a, 1 whose diameters are sequentially larger in the upper receiving plate than in the lower first receiving plate 3a.
0b and 10c are provided vertically correspondingly.

The first, second and third screening holes 10a of the contact body 3d,
At positions corresponding to 10b and 10c, elastic projections 3d' made of sponge rubber or the like are attached.

Conveyor frames 11 on both the left and right sides of the transport body 4,
A pair of parallel rotating shafts 12,
12, and a pair of sprocket wheels 13, 13 are attached to the outer periphery of each rotating shaft 12, respectively, and corresponding sprocket wheels 1 are installed at the front and rear.
3, 13, 13, 13 has an endless chain 14,
14, and the shafts 8 of each of the laminates 3 are spanned between the two chains 14, 14 at appropriate intervals and pivotally connected.

The guide 5 has first to
Third guide rod 5a, 5a, 5b, 5b, 5c, 5
c are provided in parallel to each other on the left and right sides of the sorting section S' in a continuous state with their ends sequentially overlapping, and the interval between the guide rods facing each other on the left and right sides is gradually expanded along the transfer direction. It is located in

That is, the first guide rods 5a, 5a are connected to the projecting pieces 9 at both left and right ends of the first receiving plate 3a at the bottom of each laminate 3.
a, 9a is set to a width that can be engaged with the lower surface of the second
The guide rods 5b, 5b are set to a width that allows them to engage with the protrusions 9b, 9b on both left and right ends of the second receiving plate 3b, and similarly, the third guide rods 5c, 5c are set to have a width that allows them to engage with the protrusions 9b, 9b on the left and right ends of the second receiving plate 3b. , 9c, respectively.

17 is a regulation chain conveyor, and conveyor 4
The stopper 17a is engaged with the lower edge 3'' of the abutting body 3d in the hanging state on the entire surface side in the conveying direction, so that the abutting body 3d is rotated forward from the hanging position. prevent movement.

Rubber belt conveyors 18a, 18b, 1 each receive the workpiece 2 falling from the receiving plate and transport it forward at the rotating position of each receiving plate of each of the laminates 3.
8c is provided.

And each rubber belt conveyor 18a, 18
Between b and 18c, narrow belt conveyors 18d, 18e, and 18 are provided to send the object 2 to the side.
f is arranged.

A supply device 19 for supplying the workpiece is disposed at a workpiece supply position on the rear end 4B side of the transfer body 4.

This supply device 19 includes a roller conveyor 20, an alignment body 21, a feeding mechanism 22, and a transfer conveyor 23.
It consists of.

The roller conveyor 20 includes a pair of left and right parallel chain conveyors 24a, 24a, with bars 24b extending at regular intervals, and a cylindrical free roller 25 rotatably fitted around the outer periphery of the bar 24b.

The alignment body 21 has a plurality of fixed guide rods 21b arranged in the front-rear direction on the upper surface of an inclined base 21a whose inclination angle can be changed.
Both ends are fixed to the inclined base 21a,
The workpieces supplied from the roller conveyor 20 are
It is for receiving in each guide path 21c formed between each fixed guide rod 21b and aligning in a line.

At the exit end of the alignment body 21, each guide path 2 is provided.
A guide plate 21e having an inclined groove 21d corresponding to the groove 1c is provided.

The transfer conveyor 23 consists of a drive roller 23a and a screw roller 23b, and is arranged at a position lower than the fixed guide rod 21b of each guide path 21c, and each roller 23a, 23b is provided rotatably with respect to the inclined base 21a.

A sprocket wheel 23c is attached to the outer periphery of one end of each roller 23a, 23b,
A transmission 23e connected to a motor 23d is configured to rotate in the direction of arrow L via a chain 23f.

The feeding mechanism 22 has partition discs 33 on both sides of the rotary shaft 32 provided above the processing material supply position X' at the rear end of the sorting conveyor 1, at positions corresponding to the passing positions of the respective sorting holes 10a, 10b, and 10c. Between each partition disc 33, a pair of partition plate pins 34, 34 are arranged at equally spaced positions on the outer circumference of the rotating shaft 32 to form four storage parts 35, 35, 35, 35. is forming.

The rotary shaft 32 is interlocked with the rotary shaft 12 of the sorting conveyor 1 via gears 36 and 37, and each storage section 35 on the outer periphery of the rotary shaft 32 corresponds to each stack that is sequentially transferred on the sorting conveyor 1. 3 sorting hole 1
It is configured to rotate while sequentially corresponding to the upper surfaces of 0a, 10b, and 10c.

Each storage section 35 of this feeding mechanism 22 corresponds to the lower end of each inclined groove 21d of the guide plate 21e, and is designed to receive the objects to be processed one by one discharged from the inclined groove 21d of the guide plate 21e. It consists of

The operation of the device configured as described above will be described.

First, when the workpieces 2 are fed from the chute 38 onto the roller conveyor 20 of the supply device 19, each workpiece 2 is moved by the free rollers 25, 25,
...Even if they are supplied in a stacked state on the top surface, they are dispersed not only in the front and back direction but also in the left and right directions due to the action of the free roller 25 due to the gravity of the workpiece 2 during transport.
It becomes flat and moves to the upper surface of the alignment body 21.

Then, the object 2 to be processed is guided through each guide path 2 of the arrayed body 21.
1c and are arranged in multiple rows.

The workpiece 2 is placed on the upper surface of the drive roller 23a and the screw roller 23b of the transfer conveyor 23, and
The workpiece 2 is transferred to the loading mechanism 22 side under the transfer action of the screw roller 23b, and at this time the workpiece 2 is given a rotation action by the screw roller 23b, but the drive roller 23a is also rotating in the same direction. Therefore, the workpiece 2 is not separated from the upper surfaces of the drive roller 23a and the screw roller 23b, nor is it pinched, and is smoothly transported at a constant speed and at a constant pitch.

Furthermore, even if a force is exerted on the workpiece 2 to overcome the drive roller 23a and jump out to the adjacent transfer conveyor 23 based on the rotation of both the rollers 23a and 23b in the same direction, the fixed guide rod on each movement direction side 21b reliably prevent the objects from jumping out, so even if the rotational speed of the transfer conveyor 23 is increased, the objects 2 to be processed are transferred in an orderly manner.

The objects 2 to be processed thus transferred are accumulated in the inclined groove 21d of the guide plate 21e.

Then, among the objects 2 to be processed in each inclined groove 21d, the lowest one sequentially enters the storage section 35 at the time corresponding to each storage section 35 of the input mechanism 22,
The objects 2 to be processed are sequentially introduced into a series of sorting holes 10a, 10b, 10c, . . . of the stacked body 3 of the sorting conveyor 1 that passes through the lower part of the storage section 35, and are transported forward together with the stacked body 3. be done.

At this time, the lower edge 3d'' of the abutting body 3d is restricted from forward rotation by the stopper 17a of the regulating chain conveyor 17, and is transported forward while being maintained at the hanging position.

When the stacked body 3 carrying the workpieces 2 reaches the inner section X of the sorting section S' and passes over the first guide rod 5a, the first
The downward movement restraining action of the projecting pieces 9a, 9a on both sides of the receiving plate 3a is released, and the first receiving plate 3a rotates downward about the shaft 8 at its front edge due to its own gravity.

The workpiece 2 caught in the first sorting hole 10a moves downward together with the first receiving plate 3a, and the abutting body 3
By contacting the protrusion 3d' of d, it falls behind the receiving plate 3a, and the lower belt conveyor 18a,
It is sent out to the side via a narrow belt conveyor 18d.

On the other hand, the workpiece 2 larger than the second sorting hole 10b of the second receiving plate 3b is caught in the second sorting hole 10b and further moves forward together with the stacked body 3, and in the section 5b, it is sorted in the same manner as the first receiving plate 3a, and is reliably discharged to the side by the narrow belt conveyor 18e.

Further, the object 2 to be treated, which is larger than the third sorting hole 10c of the third receiving plate 3c, is caught in the third sorting hole 10c and further moves forward together with the stacked body 3, when it passes through the third guide rod 5c. Then, they are sorted in the same manner as in the case of the first receiving plate 3a, and are reliably discharged to the side.

Then, after traveling around the front end 4A of the transfer body 4 with all the receiving plates rotated downward, the transfer body 4
is transferred to the rear end 4B through the lower side.

In this way, the connected stack 3 is also transferred in the sorting section S', and the lower first receiving plate 3a
The objects 2 to be processed are sorted by size and reliably dropped onto belt conveyors at different positions by rotating downward in order.

In the embodiment described above, the receiving plate was attached to the transfer body so as to be able to rotate downward about the front side edge in the transfer direction. , it may be mounted so that it can pivot downward.

Note that the shape of the sorting hole in the receiving plate is not limited to a round hole, but may be any shape as long as it is possible to sort the objects to be processed according to size.

Although the protrusions and guides are used as guide means for rotating the receiving plate of the laminate downward at different positions, the present invention is not limited thereto, and other means may be used.

In the above embodiment, the input mechanism 22 is rotated in the direction of the arrow, but it may be rotated in the opposite direction.

Further, the depth of the storage section 35 may be configured to be variable according to the size of the object to be processed.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall perspective view, Fig. 2 is a side view, and Fig. 3 is a partial perspective view.
Figure 4 is an enlarged sectional view taken along line AA in Figure 2, Figure 5 is an enlarged sectional view taken along line BB in Figure 4, Figure 6 is an enlarged sectional view of main parts in Figure 2, and Figure 7 is an enlarged sectional view taken along line 2 in Figure 2. It is a CC sectional view of. 1... Sorting conveyor, 2... Item to be processed, 3...
Laminated body, 3a...first receiving plate, 3b...second receiving plate,
3c...Third receiving plate, 4...Transfer body, 19...Supplying device, 20...Roller conveyor, 21...Aligning body, 21c...Guidance path, 22...Charging mechanism, 23
... Transfer conveyor, 23a ... Drive roller, 2
3b...screw roller.

Claims (1)

[Scope of Claim for Utility Model Registration] A plurality of fixed guide rods are arranged in parallel at regular intervals along the direction of fruit transport in the front stage of a sorting device that sorts objects to be processed at predetermined intervals. A plurality of guiding paths are formed by a pair of fixed guide rods, each of which lines up the objects to be processed and supplies them to the sorting device. A sorting device for fruits, etc. equipped with a transfer conveyor consisting of screw rollers that rotate in different directions and drive rollers.