JPH08231035A - Conveying unit in classfication conveyor - Google Patents

Abstract

PURPOSE: To provide a conveyor wherein a supporting part protruding from a bottom portion of a conveying unit is inserted into a guide groove between a pair of chain transferring pathes in which two conveyor chains are traveled in order to stand the conveying unit straight and prevent the conveying unit from inclining. CONSTITUTION: At a classification conveyor, a transfer unit 13 is provided between two conveyor chains 10 travelling in parallel. A selected good is loaded on a small section board 14 provided on the transfer unit 13. The board 14 is inclined at a predetermined classification discharge portion by inclining the board 14 based on classification information. A supporting part 19 protruding from a bottom portion of the transfer unit 13 is provided between two conveyor chains 10 and inserted into a guide groove between two chain travelling pathes. When the transfer unit 13 is inclined rightward or leftward, the transfer unit 13 is supported by the supporting part 19 so as to stand the transfer unit 13 straight. Even if the transfer unit 13 is inclined during transfer operation, a selected good is prevented from falling down. In addition, conveyor chains 10 are prevented from being twisted and a roller 11 is prevented from being worn at an only side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention conveys relatively small articles such as fruits and vegetables on a carrier and conveys them onto a carrier when it reaches a specific place determined in advance according to weight and grade. Regarding sorting conveyors that release articles to the outside,
Specifically, it relates to a support structure for the carrier.

[0002]

2. Description of the Related Art Conventionally, in this type of sorting conveyor, as disclosed in Japanese Examined Patent Publication No. 6-1050, a conveyor is provided on one side of an endlessly connected conveyor chain. In some cases, the conveyors are attached at equal intervals while being held horizontally by a chain guard rail that supports the conveyor chain from above and below to prevent the conveyor from tilting. However, in this state, the tilt of the carrier cannot be avoided due to the weight of the small plate itself and the articles placed on the small plate, and the problem that the articles on the small plate fall on the way regardless of sorting occurs. The mess of sorting results and the damage caused by falling of articles (especially when selecting fruits) were unavoidable. As a countermeasure against this, two conveyor chains are arranged in parallel on the chain travel path with a predetermined gap, and mounting pins are passed between them to attach the carrier units at equal intervals. It is conceivable to maintain the posture of the carrier upright by sandwiching the roller portion slidably between the chain traveling path and the chain cover formed thereon. However, even in this case, the weight on which the article is placed on the carrier is unevenly distributed, which may cause twisting of the conveyor chain and increase the load on the roller portion of the conveyor chain, which causes problems such as one-sided wear of the roller. There is an unavoidable risk of

[0003]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a carrier unit supporting structure for a sorting conveyor, in which the tilt of the carrier is suppressed and the posture is maintained upright.

[0004]

In order to achieve the above object, according to the present invention, a supporting portion is projected from the bottom of a carrier, and the supporting portion is inserted into a guide groove between two chain traveling paths along which a conveyor chain slides. .

[0005]

With the above-described structure, the left and right inclinations of the carrier unit are supported by the supporting portions, the carrier unit is run in an upright state, and the objects to be sorted fall due to the tilt of the carrier unit during sorting. It is possible to prevent accidents such as accidents. At the same time, twisting of the conveyor chain can be suppressed to prevent partial wear of the rollers of the conveyor chain.

[0006]

Embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side view showing a configuration of a sorting conveyor provided with a carrier unit according to an embodiment of the present invention. The sorting conveyor 1 is coaxially linked with a driving pulley 3 rotated by a driving motor 2 and has a chain traveling path. Two left and right conveyor chains 10 that run in parallel on the above 4 are provided. A large number of carrier units 12 of the present invention are mounted between the two conveyor chains 10 at equal intervals.

In front of the sorting conveyor 1, there is provided a sorting information collecting device 27 for collecting sorting information by weighing and inspecting objects to be sorted such as fruits and a conveyor 28 for carrying the sorting information, and the sorting information is utilized by a bar code or the like. Labels are printed and attached to the item to be sorted, or sorting information is imported to a dedicated computer. The sorting conveyor 1 travels in the direction of the arrow, and is sequentially transported to the transport unit 12 in accordance with the transport unit 2.
7 to be sorted, the label information attached to the sorted object is read by the sorting information reading device 29, or the carrier unit 12 is operated by the designated sorting unit 30 according to a command from a dedicated computer. Then, the objects to be sorted are discharged, placed on the discharge conveyor 31 and carried out.

FIG. 2 is a side view showing a state in which the carrier unit is attached to the conveyor chain, and FIG. 3 is a bottom view of the carrier unit. Two carrier units 12 are provided at a predetermined interval between two conveyor chains 10. It is attached by the attachment pin 32 of the book. FIG. 4 is a side view of the carrier unit main body, and FIG.
Is provided with a plurality of bearings 15 for rotatably supporting the split plate 14 rotatably at right angles to the traveling direction, and two mounting holes 16 into which the mounting pins 32 are inserted are provided in the lower part. Two mounting pins 32 at a predetermined position of the chain 10.
Fixed by. Of the two mounting holes 16, the mounting hole 16 in the front in the traveling direction is formed without a gap in accordance with the diameter of the mounting pin 32, and the mounting hole in the rear is an elongated mounting hole 1 elongated in the traveling direction.
6a, the carrier units 12 are mounted at predetermined positions on the conveyor chain 10 with reference to the mounting holes 16 on the front side, the intervals between the adjacent carrier units 12 are made uniform, and the drive pulley 3 and the conveyor are made by expanding and contracting the conveyor chain 10. The engagement dislocation of the chain 10 is absorbed in the range of the elongated hole of the mounting elongated hole 16a on the rear side, and the traveling of the conveyor chain 10 is smoothed. Further, a supporting portion 19 protruding downward is formed between the mounting hole 16 and the mounting long hole 16a. FIG. 6 is a side view of a carrier unit main body of another embodiment, in which the main body 13 is divided into two pieces, which are rotatably connected by a rotary connecting pin 22 at the center and attached to the conveyor chain 10. Are formed in accordance with the diameters of the mounting pins 32, respectively, and misalignment between the drive pulley 3 and the conveyor chain 10 due to expansion and contraction of the conveyor chain 10 is absorbed by bending around the rotary connecting pin 22.

FIG. 5 is a cross-sectional view of the sorting conveyor according to the embodiment of the present invention as seen from the traveling direction. The chain traveling path 4 of the sorting conveyor 1 is formed of two symmetrically shaped mold members extending in the traveling direction, and the conveyor chain 10 is provided. Suppression plate part 5 that supports the
And the cover portion 6 that suppresses the lifting of the conveyor chain 10.
And a mounting portion 7 that is fixed to the pedestal, corresponding to the two conveyor chains 10 and fixed to a pedestal (not shown) so as to sandwich the conveyor chain 10 from both left and right sides. A restraining plate spacer 5 made of a lubricating resin (for example, polyacetal resin) is fixed to the restraining plate spacer 8 so as to cover the tip of the restraining plate portion 5 and extend in the traveling direction. Place the conveyor chain 10,
A cover spacer 9 made of a lubricous resin and having a U-shaped cross-section extending in the traveling direction is attached to the tip of the cover portion 6, and the bottom of the cover spacer 9 prevents the conveyor chain 10 from rising and the roller 11 of the conveyor chain 10 is folded. Hold it freely. Furthermore, two parallel conveyor chains 10
The support portion 19 of the carrier unit 12 mounted between the two is sandwiched by the bottom portions of the holding plate spacers 8 facing each other so that the main body 13 stands upright.

A small split plate 14 is axially supported by a bearing portion 15 of the main body 13 with a center of gravity thereof shifted to one side, and a longitudinal end of the small split plate 14 is urged downward by a torque spring 18 mounted coaxially. However, the stopper 21 provided below the split plate 14
Is brought into contact with a stopper receiver 20 provided upright on the main body 13. On the other side of the split plate 14, a hook mechanism 23 that locks the split plate 14 against the torque spring 18 is provided, and the split plate 14 is locked and kept horizontal. The hook mechanism 23 is provided on the rib 17 standing upright on the main body 13 at a right angle to the traveling direction, and
An engaging member integrally formed with a hook 24 for locking the lever and a lever 25 for unlocking is pivotally supported at the tip of the rib 17 at a right angle to the traveling direction, and by a coil spring 26 sandwiched between the main body 13 and The hook 24 urges the split plate 14 in the direction in which it is locked. Whether the sorting conveyor 1 is configured as described above, the split plate 14 is kept horizontal by the hook mechanism 23, the articles to be sorted are transferred from the transport conveyor 28 and run, and read from the label attached to the articles to be sorted. , Or according to the sorting information that has already been read into the computer, by a detaching means such as an electromagnetic solenoid provided in a predetermined sorting unit 30,
Push down the lever 25 against the coil spring 26,
The small plate 14 is unlocked, and the objects to be sorted are discharged on the conveyor 31.
Drop and transfer to complete the sorting.

[0011]

As described above, according to the present invention, a carrier is attached between two conveyor chains running in parallel,
In a sorting conveyor in which the objects to be sorted are placed on a small plate provided above the carrier, and the small plate is tilted and transferred at a predetermined sorting discharge section according to the sorting information, two conveyor chains are provided at the bottom of the carrier. By forming a protruding part between the two, and by inserting this into the guide groove between the two chain travel paths,
The left and right inclinations of the carrier unit are supported by the supporting portion, the carrier unit is run in an upright state, and it is possible to prevent accidents such as dropping the objects to be sorted due to the tilt of the carrier unit during sorting. The effect that the twisting of the conveyor chain can be suppressed and the abrasion of the rollers of the conveyor chain can be prevented.

[Brief description of drawings]

FIG. 1 is an overall side view of a sorting conveyor provided with a carrier unit according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

3 is a cross-sectional view of FIG.

FIG. 4 is a side view of the carrier unit according to the embodiment of the present invention.

FIG. 5 is a cross-sectional view of the carrier unit according to the embodiment of the present invention as seen from the traveling direction.

FIG. 6 is a side view showing another embodiment of the carrier unit according to the present invention.

[Explanation of symbols]

 1 Sorting Conveyor 2 Drive Motor 3 Drive Pulley 4 Chain Traveling Path 5 Suppression Plate 6 Cover 7 Installation 8 Suppression Spacer 9 Cover Spacer 10 Conveyor Chain 11 Roller 12 Conveyor Unit 13 Main Body 14 Split Plate 15 Bearing 16 Installation Hole 16a Mounting long hole 17 Rib 18 Torque spring 19 Support part 20 Stopper receiver 21 Stopper 22 Rotating connecting pin 23 Hook mechanism 24 Hook 25 Lever 26 Coil spring 27 Sorting information collecting device 28 Conveyor 29 Sorting information reading device 30 Sorting discharge part 31 Discharge conveyor 32 Mounting pin

Claims (1)

[Claims] 1. A plurality of conveyors are connected between two conveyor chains that are parallel to each other on the left and right, and a plurality of strip-shaped split plates are attached to the upper portion of each conveyor in a direction orthogonal to the conveying direction. Sorting conveyor that places and conveys the objects to be sorted and discharges the objects to the side of the conveyor chain for sorting by inclining one or more small dividing plates at a fixed position during the transportation. In the transport unit, the support unit is protruded from the bottom of the transport unit, and the support unit is inserted into a guide groove between two chain travel paths along which a conveyor chain slides.