JPH1087060A - Sorting conveyer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a storing conveyer which can carry out the classification work and the loading work securely, regardless of the form and the condition of an article, and furthermore, has a simple structure and little inconveniance such as a function failure, and can carry out the maintenance easily. SOLUTION: A follower sprocket 15 provided to one side end in the axial direction of one side pulley 5B, of a pair of pulleys 5A and 5B to rotate a belt 3 provided to a truck 10; and a driving sprocket 23 linked to the follower sprocket 15 through a timing belt 21; are provided, and following the rotation to rotate a conveyer main body 7; the follower sprocket 15; the timing belt 21; and the driving sprocket 23; simultaneously and integrally, by tilting mechanisms 9, the driving sprocket 23 is rotated by a belt rotating mechanism 11, and by rotating the follower sprocket 15 following the above rotation, the belt 3 is rotated in the direction of the pulley 5B at the side the belt 3 is tilted, so as to transfer an article P from the track 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sorting conveyor suitable for carrying articles to a desired position by a cart and carrying out sorting work by transferring the articles from the cart at a specific position.

[0002]

2. Description of the Related Art In an airport, for example, when passenger luggage (articles) are sorted according to destinations or the like, the articles are placed on a carriage that moves along a rail-shaped guide track, and each article is placed on a truck. , And an operation of transferring the article from the cart to another transport path or the like at the desired position is performed.

In a sorting conveyor disclosed in Japanese Patent Application Laid-Open No. 48-98580, a belt conveyor is used as a mechanism for moving articles out of a cart during such sorting work. Equipped with a conveyor,
The pinion combined with the chassis of the main conveyor and the bevel gear constitute a power transmission device for transferring articles.

[0004] In a state where the pinion gear is engaged with a toothed rack member provided along the traveling direction (moving direction) of the bogie, the pinion gear rolls on the rack member as the bogie travels. For this reason, a mechanism for converting the motive power for running the bogie into a driving force for rotating the belt of the main conveyor is employed.

In the sorting conveyor described in Japanese Patent Application Laid-Open No. Sho 61-64622, a tray capable of tilting in both directions in its width direction, and one of two different guide tracks, And a tray tilting mechanism for tilting the tray. In this case, a configuration is adopted in which the trajectory following member provided so as to extend from the tray tilting mechanism is guided to tilt the tiltable tray. Is transferred from the carrier device (cart).

[0006] In the former sorting conveyor,
A configuration is adopted in which the rotational driving force of the main conveyor required to actually perform the sorting operation is branched from the driving force for running the bogie and directly transmitted. Further, in the latter sorting conveyor, a configuration is adopted in which the driving force for inclining the tray is branched from the driving force of the carrier device itself and directly transmitted, so that in these sorting conveyors, a generator or the like is used. There is no need to separately provide a drive system of the sorting device including the above, and there is an advantage that the entire configuration is simplified.

[0007]

However, in the former sorting conveyor, when the articles are placed on the main conveyor by a transfer conveyor or the like from a horizontal or oblique direction, the frictional force on the main conveyor surface is reduced. However, the load becomes a force having a force opposite to the direction in which the article is moved, and it is difficult to load the article on the main conveyor in an optimal manner.

In this case, it is conceivable that the main conveyor is rotated at the same time as the operation of the transfer conveyor and the main conveyor is rotated at the same time, so that articles can be loaded smoothly. However, there is a problem that the overall configuration becomes complicated and the operation control of the transfer conveyor, the main conveyor, and the like becomes complicated.

On the other hand, in the latter sorting conveyor, since the tray is simply tilted during the sorting operation, the shape of the articles to be sorted is limited, and the state of the articles depends on static electricity. If the product is wrapped in a packaging material that is easily charged and is lightweight, or contains moisture, the article remains on the tray,
There is a problem that the sorting operation cannot be performed smoothly.

An object of the present invention is to provide a sorting conveyor which can perform sorting and placing operations reliably regardless of the shape and state of articles, has a simple structure, has few inconveniences such as failures, and is easy to maintain. It is in.

[0011]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method for rotating a belt in a direction orthogonal to a moving direction of a belt and a carriage for transporting articles placed on the belt to a desired position. And a conveyor body provided on the carriage provided with the pulley, and one of the pair of pulleys formed integrally with or separately from one of the pulleys and provided at one end in the axial direction of the pulley. A disk-shaped driven wheel rotatable integrally with the pulley, the driven wheel being connected to the driven wheel via an endless power transmission member, and an axis of a rotating shaft provided on the bogie. The belt-like drive wheel, which is disposed rotatably around, and the conveyor body, the driven wheel, the power transmission member, and the drive wheel are integrally circularly moved, thereby forming the belt. A tilting mechanism for displacing the one of the pair of pulleys to a posture tilted toward one of the pulleys, or a horizontal position, and rotating the drive wheel in response to the operation of the tilting mechanism. A belt rotating mechanism that rotates the belt in the direction of the pulley on the side where the belt is tilted by transmitting the rotational power of the drive wheel to the driven wheel via the power transmission member. Achieved by the featured sorting conveyor.

[0012]

In the sorting conveyor according to the present invention, the driving wheel is rotated by the belt rotating mechanism in response to the operation of the tilting mechanism, and the rotating power of the driving wheel is transmitted to the power transmitting member. The pulley to which the driven wheel is attached is rotated by being transmitted to the driven wheel that is linked via the belt, so that the belt is tilted in response to the belt being tilted. The belt is rotated in the direction of the pulley on the side where the belt is located. Further, the belt is rotated in the opposite direction by the operation of returning the belt from the inclined state to the horizontal state.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a sorting conveyor according to the present invention will be described below with reference to the drawings. FIG.
As can be understood from FIG. 2 and FIG. 2, the sorting conveyor 1 according to the present invention includes a bogie 1 used in the sorting equipment 2.
Applies to 0. In the sorting equipment 2, a plurality of carts 1
0, and each of the carts 10 has a belt 3
And a pair of pulleys 5A and 5B on which the belt 3 is suspended.
And a conveyor body 7 mainly composed of
The article P is placed on the belt 3 and transported by the cart 10 to a desired position.

The carriage 10 has a drive mechanism (not shown) such as a linear type or a friction drive type.
The guide roller 20 is driven by the
0, while rotating in the guide rail 30A, a predetermined route and a predetermined direction (FIG. 1)
(Middle, direction A). The article P introduced on the belt 3 from the supply device 40 with the movement of the cart 10
Is conveyed, and the conveyed article P
Will be transferred to

A plurality of guide rollers 20 are provided at a lower surface position of the frame 10A constituting the carriage 10 (for example, one at each of the front, rear, left and right positions in the moving direction A of the carriage 10, a total of four guide rollers 20). In addition, each guide roller 20 is disposed so as to be rotatable around an axis of a rotation shaft 20A provided so as to protrude vertically from the frame 10A.

The direction E in which the articles P are introduced by the supply device 40 is the direction of the carriage 1 in the section where the carriage 10 goes straight.
It is set so as to form a predetermined angle θ with respect to the movement direction A of 0. Therefore, the articles P supplied from the supply device 40 are supplied to the belts 3 provided on the two carriages 10 disposed adjacent to the position along the movement direction A, respectively. Is at a predetermined angle θ. That is, the article P is moved from the supply device 40 onto the belts 3, 3 and placed along the direction oblique to the respective belts 3, 3.

Therefore, for example, even if the width of the article P in the longitudinal direction is larger than the width of the belt 3 in a certain allowable range, the article P straddles the two belts 3 and 3. Since such a long article P can be handled because it is moved and placed so as to be in a state.

Here, as can be understood from FIG. 2, the sorting conveyor 1 is provided on a carriage 10, and is mainly composed of a belt 3 and a pair of pulleys 5A and 5B on which the belt 3 is suspended. 7, a tilting mechanism 9 for displacing the belt 7 to a posture tilted toward one of the pulleys 5A or 5B, or a horizontal posture.
In response to the belt 3 being tilted by the tilting mechanism 9, a belt rotating mechanism 11 for rotating the belt 3 in the direction of the pulley 5A or 5B where the belt 3 is tilted.
And the subject.

The two pulleys 5A and 5B are
A and 13B are provided so that rotation is possible. A pulley 5B on one side (the right side in FIG. 2) has a driven sprocket (disk-shaped driven wheel) integrally or separately formed with the pulley 5B at one axial end position.
15 are attached.

At the outer peripheral edge position of the driven sprocket 15, a tooth portion 15A engaged with a belt 21 described later is provided.
Are formed around the driven sprocket 15.
The driven sprocket 15 is set so as to rotate integrally with the pulley 5B around the rotation shaft 13B.
Has a function as a so-called timing pulley.

Next, the tilting mechanism 9 includes the conveyor body 7.
And a plate-shaped attachment member 17 to which the belt rotation mechanism 11 is attached. That is, the mounting member 17 is formed in an inverted triangular shape, and
The belt rotating mechanism 11 is formed so as to extend downward from FIG. 2 from a vertex position (lower vertex position in FIG. 2) of the conveyor body mounting portion 17A to which the belt rotating mechanism 11 is attached. And a belt rotation mechanism mounting portion 17B to which the belt is mounted.

Further, a belt rotating mechanism mounting portion 17B
Is supported by a rotating shaft 19 provided on a machine frame (not shown) of the bogie 10, whereby the mounting member 17 is rotatable around the rotating shaft 19 around the rotating shaft 19. It is set to be. Therefore, the mounting member 1
With the rotation of the rotary shaft 7 around the rotary shaft 19, the conveyor body 7 and the belt rotating mechanism 11 can simultaneously and integrally circularly move about the rotary shaft 19.

Next, the belt rotating mechanism 11 has a driving sprocket (disk-shaped driving wheel) 23 connected to the driven sprocket 15 via a timing belt 21 for power transmission, and a coaxial integral with the driving sprocket 23. And a pinion gear 25 rotatable around the
Rack member 27 formed with a tooth portion 27A with which the gear 5 is engaged
And the subject.

At the outer peripheral edge of the driving sprocket 23, a tooth 23A is formed so as to rotate, while the timing belt 21 can mesh with the teeth 23A and 15A of the driving sprocket 23 and the driven sprocket 15. A large number of teeth (not shown) are formed. In addition,
The teeth are formed by rotating around the inner peripheral surface of the timing belt 21, and an interval corresponding to the tooth pitch width of the teeth 23 </ b> A and the teeth 15 </ b> A is provided between the adjacent teeth. It is set to be.

Therefore, the timing belt 21 can transmit the rotational power of the driving sprocket 23 to the driven sprocket 15 in a state where the driving sprocket 23 and the driven sprocket 15 are not slipped. In this case, an endless chain or the like may be used instead of the timing belt 21 (the driving sprocket 23 and the driven sprocket 15 have different tooth shapes).

The driving sprocket 23 and the pinion gear 25 are rotatably mounted on a rotating shaft 29 provided on the belt rotating mechanism mounting portion 17B.
Can be coaxially and integrally rotated around the axis of.

The rack member 27 is connected to the pinion gear 25.
Is formed in an arc shape. Then, the curvature of the arc becomes a path along which the pinion gear 25 rotates when the pinion gear 25 (entire belt rotation mechanism 11) is rotated (circularly moved) around the rotation shaft 19 by the tilting mechanism 9. The curvature is set to be substantially the same as the arc. The teeth 27A are formed continuously in the direction along the arc of the arc-shaped side surface 27B.

Sorting conveyor 1 in this embodiment
Is configured as described above, for example, the article P
Is moved rightward in FIG. 2 to be moved out of the carriage 10, the position of the left guide rail 30 is set to be higher than the position of the right guide rail 30.

As a result, the left guide roller 20 moves in the direction of the arrow X, and accordingly, the conveyor body 7 and the belt rotating mechanism 11 rotate the rotating shaft 1 by the tilting mechanism 9.
It is rotated (circular motion) in the Y direction around the rotation center 9.
Therefore, the pinion gear 25 is connected to the teeth 27 of the rack member 27.
It moves (circular motion) on A in the Y direction. At this time, tooth 2
Since 3A and 27A are meshed, the pinion gear 2
A force is applied to 5 around the axis of the rotation shaft 29 to rotate in the Z1 direction.

Then, the force for rotating the pinion gear 25 is transmitted as rotating power of the driving sprocket 23 via the rotating shaft 29, and the rotating power rotates the timing belt 21 in the Z2 direction.
It is rotated in the Z1 direction about the rotation shaft 13B. Therefore, the belt 3 can be rotated in the Q direction.

That is, when the article P is transferred to the chute 50 or the like provided on the right side, the belt 3 and the belt rotating mechanism 11 are tilted to the right, and the belt 3 is moved to the right in response to the tilting operation of the belt rotating mechanism 11. Direction (Q direction)
Circular motion and tilt. On the other hand, when the article P is moved to the left, the belt 3 and the belt rotating mechanism 11 are tilted to the left, and the belt 3 circularly moves to the left (R direction) in response to the tilting operation of the belt rotating mechanism 11 and tilts. .

As described above, when the belt 3 is tilted, the belt 3 always moves in the direction of the tilted pulley 5B (or 5A).
Direction), the article P slides on the belt 3 under its own weight and moves, and the article P is also moved in the export direction by the rotation of the belt 3. When the belt 3 returns from the inclined state to the horizontal state, each member rotates in the opposite direction to the above. Therefore, the article P is transferred to the belt 3
When putting on the belt, keep the belt 3 in a tilted state,
If the belt 3 is displaced in a horizontal state along with the loading of the article P, the article P can be loaded on the belt 3 in an appropriate direction without applying an unnecessary load to the article P.

As described above, in this embodiment, in response to the operation of the tilting mechanism 9, the driving sprocket 23 is rotated by the belt rotating mechanism 11, and the rotational power of the driving sprocket 23 is reduced. The power is transmitted to the driven sprocket 15 linked via the timing belt 21. That is, in response to the belt 3 being tilted to the pulley 5B side, the belt 3 moves in the pulley 5B direction (Q direction).
Rotated to

Therefore, for example, even if the shapes of the articles P, such as luggage at an airport, are different from each other and the states of the articles P are different, for example, the articles P contain moisture, the sorting operation and the loading operation are performed. This has the advantage that work can be performed reliably. Further, since devices such as a motor and a cylinder required for the above-mentioned conventional sorting conveyor are not required, there are advantages that the structure is simple, troubles such as failures are less, and maintenance is easy.

When the article P is transferred to the right side in FIG. 2, for example, by setting the position of the right guide rail 30 lower than the position of the left guide rail 30,
A configuration in which the belt 3 is inclined rightward is also possible.

That is, if the relative positions of the two guide rails 30 in the vertical direction are horizontal, the article P is conveyed without being transferred, and when the article P is to be transferred, the article P is transferred at the place where it is to be transferred. Side guide rail 3
The vertical position of 0 may be set to be a position relatively lower than the vertical position of the opposing guide rail 30.

The rack member 27 is connected to the pinion gear 25.
In the rack member used in this case, a side surface having the same shape as the side surface 27B of the rack member 27 is formed on the side facing the pinion gear 25, and the side surface is formed on the side surface. The teeth that mesh with the pinion gear 25 are formed in the same manner as the teeth 27A.

Next, another preferred embodiment of the sorting conveyor according to the present invention will be described. As understood from FIG. 3, in this embodiment, the rotating shaft of the driving sprocket 23 is also used as the rotating shaft 19 provided in the tilting mechanism 9. A driving gear 31 having a rectangular outer edge is fixed to the driving sprocket 23. The driving gear 31 has a substantially semicircular tooth portion 31A.

A fixed gear 33 is attached to the rotating shaft 19 so as to be rotatable around the axis of the rotating shaft 19, and the teeth 33 A of the fixed gear 33 are the teeth 31 of the dynamic gear 31.
A is engaged. That is, the fixed gear 33 rotates around the rotation shaft 19 integrally with the driven sprocket 23, and the tilting mechanism 9 rotates the driven sprocket 2.
3 and a circular motion about the rotation shaft 19.

On the other hand, when the tilting mechanism 9 operates, the fixed gear 33 rotates about the axis of the rotating shaft 19. However, even if the tilting mechanism 9 operates, the position of the rotating shaft 19 is not displaced. The position of the fixed gear 33 is not displaced. Thus, in this embodiment, the driving sprocket 23 and the dynamic gear 3
The belt rotating mechanism 11 mainly includes the fixed gear 33 and the timing belt 21.

With the above configuration, when the tilting mechanism 9 operates (the belt 3 is tilted rightward in FIG. 3) in the same manner as in the above embodiment, the dynamic gear 31 is engaged with the fixed gear 33. Then, it makes a circular motion in the Y direction around the rotation shaft 19. Accordingly, the driving sprocket 23 rotates in the Y direction about the rotation shaft 19, so that the timing belt 21 rotates in the U direction and the driven sprocket 15
The belt 3 rotates in the Q direction. When the belt 3 is tilted to the left, the driven sprocket 15 is rotated in the direction opposite to the Y direction, so that the pulley 5B also rotates in the Y direction, so that the belt 3 is rotated in the R direction.

As described above, in this embodiment, in response to the operation of the tilting mechanism 9, the driving sprocket 23 is rotated by the belt rotating mechanism 11, and the rotational power of the driving sprocket 23 is reduced. The power is transmitted to the driven sprocket 15 linked via the timing belt 21. That is, in response to the belt 3 being tilted to the pulley 5B side, the belt 3 moves in the pulley 5B direction (Q direction).
Rotated to

Therefore, for example, even when the shapes of the articles P, such as luggage at an airport, are different from each other and the states of the articles P are different, such as when the articles P contain moisture, the sorting operation and the loading operation are performed. This has the advantage that work can be performed reliably. Further, since devices such as a motor and a cylinder required for the above-mentioned conventional sorting conveyor are not required, there are advantages that the structure is simple, troubles such as failures are less, and maintenance is easy. In addition, since the rotating shaft of the driving sprocket 23 is also used as the rotating shaft 19 of the tilting mechanism 9, the configuration has further advantages such as a further simplification of the structure and easier maintenance.

[0044]

As will be understood from the above description, in the sorting conveyor according to the present invention, the driving wheel is rotated by the belt rotating mechanism in response to the operation of the tilting mechanism. The rotation of the drive wheel is transmitted to the driven wheel connected via the power transmission member, whereby the pulley to which the driven wheel is attached is rotated, and the belt is tilted. In response, the belt is rotated in the direction of the pulley on the side where the belt is tilted.

Therefore, the sorting operation and the loading operation can be performed reliably even when the condition of each article is different, for example, the shape of each article such as luggage at an airport is different and the article contains moisture. In addition to the above-mentioned effects, the structure is simple, there are few inconveniences such as failures, and the maintenance is easy.

[Brief description of the drawings]

FIG. 1 is an overall schematic configuration diagram showing a sorting facility in a preferred embodiment of a sorting conveyor according to the present invention.

FIG. 2 is an explanatory diagram showing a main part configuration and operation of a sorting conveyor in the embodiment.

FIG. 3 is an explanatory diagram showing a main configuration and operation of a sorting conveyor according to another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Sorting conveyor 2 Sorting equipment 3 Belt 5A, 5B Pulley 7 Conveyor main body 9 Tilt mechanism 10 Cart 10A Frame 11 Belt rotating mechanism 13A, 13B Rotating shaft 15 Follower sprocket 15A Teeth 17 Mounting member 17A Conveyor main body mounting portion 17B Rotating mechanism mounting Part 19 Rotating shaft 20 Guide roller 20A Rotating shaft 21 Timing belt 23 Drive sprocket 23A Teeth 25 Pinion gear 27 Rack member 27A Teeth 29 Rotating shaft 30 Guide rail 31 Dynamic gear 31A Teeth 33 Fixed gear 33A Teeth 40 Supply Device 50 Chute P Article Q, R Belt rotation direction X Guide roller displacement direction Y Pinion gear movement direction Z1 Drive sprocket and driven sprocket rotation direction Z2, U Timing belt rotation direction

Claims (1)

[Claims] 1. A belt (3) and a cart (1) for conveying an article (P) placed on the belt (3) to a desired position.
A conveyor body (7) provided with a pair of pulleys (5A, 5B) for rotating the belt (3) in a direction orthogonal to the movement direction (A) of (0) and provided on the carriage (10); Of the pair of pulleys (5A, 5B), one of the pulleys (5B) is formed integrally or separately and provided at one end in the axial direction of the pulley (5B).
B) The disc-shaped driven wheel (15) rotatable integrally with the driven wheel (15), and the driven wheel (15) are connected to each other through an endless power transmission member (21), and the bogie ( 10) a disk-shaped drive wheel (2) rotatably disposed around a rotation shaft (29) provided on
3), the conveyor body (7), the driven wheel (15),
By making the power transmission member (21) and the drive wheel (23) circularly move integrally, the belt (3) is moved to one of the pair of pulleys (5A, 5B). A tilting mechanism (9) for displacing the tilted posture toward the pulley (5B) or the horizontal posture.
The driving wheel (23) is rotated in response to the operation of the tilting mechanism (9), and the rotational power of the driving wheel (23) is transmitted to the driven wheel via the power transmission member (21). (15) a belt rotating mechanism (11) for rotating the belt (3) in the direction of the pulley (5B) on the side where the belt (3) is tilted by transmitting the belt (3).
A sorting conveyor (1), comprising: