JPH0676135B2 - Transport sorting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Industrial field of application) The present invention relates to a transport / sorting device that sorts items by transporting them selectively to the side of a transport path. is there.

(Prior Art) As a sorter for this type of conveyance, there is a type that pushes out the articles on the conveyor forming the conveyer side by a scraper or a pusher, or a cart slat that runs along the conveyer side. There is a method of inclining to the side and dropping the item on it sideways by gravity, but there is a limit to the items to be sorted, such as small items, bulk items, lightweight items, thin items, items with poor bottom condition etc. In addition, it is difficult to sort items that can only be conveyed by a belt conveyor.

Applicable to transport sorting of such items,
There is one disclosed in JP-A-48-98580.

In this transport sorting device, an endless sorting belt (cross belt) having a transport direction that intersects with the transport direction of a transport body (chassis structure) that moves along a transport path (C rail) is used. The sorting belt is wound around a drive pulley (roller), and the drive pulley is passed through a transmission mechanism to a friction wheel (pinion or pulley) that is swingable in the left-right direction at the lower part of the carrier. And a pair of friction bodies (rack, friction rack, V
(A belt, a rack device) and a guide device (guide rods and guide members) are provided at fixed positions on the above-mentioned conveyance path, and the guide device guides the friction wheel of the moving conveyance body left and right to one of the pair of friction bodies. The rotation of the friction wheel, which is engaged with the friction body and rolls with respect to the one friction body, is transmitted to the drive pulley, and the drive pulley is selectively rotated in the forward direction or the reverse direction corresponding to the friction body. The sorting belt is selectively driven toward one side or the other side of the conveying path.

Further, an unloading device for sorting articles described in Japanese Utility Model Laid-Open No. 62-113127 is known.

In this unloading device, an endless sorting belt having a transporting direction that intersects the moving direction of the transporting body is arranged on a transporting body (carriage) that moves along the transporting path, and the sorting belt is driven by a drive pulley. It is wound around (roller), and this drive pulley is connected to a friction wheel (wheel or roll) disposed in the lower part of the above-mentioned carrier so as to be swingable in the left-right direction through a transmission mechanism, and frictionally contacts the friction wheel. A pair of friction belts and a guide device (lever) are provided at fixed positions on the transport path. The guide device guides the friction wheel of the moving carrier between the friction belts that are rotationally driven to make frictional contact, and the rotation of the friction wheel that abuts on the friction belt and rolls is driven by the drive pulley. And rotates to drive the sorting belt toward one side of the conveying path.

(Problems to be Solved by the Invention) However, in the transport sorting device disclosed in Japanese Patent Laid-Open No. 48-98580, a friction wheel (pinion or pulley) is provided at the bottom of the transport body (chassis structure). The friction wheels are fixed to the conveyance path side by a guide device (guide rod or guide member) on the conveyance path (C rail) side during sorting. Since the structure is such that one of the bodies (rack, friction rack, V-belt, rack device) is guided and engaged, it is necessary to center the friction wheel at an intermediate neutral position during normal operation. Support structure is complicated, the number of parts and the number of assembling steps are large, and it is difficult to securely engage the friction wheel with the friction body to maintain this engagement, so that the operation tends to be uncertain, and Pendulum There is a problem that noise is generated when guiding the wheels to the left and right, and there is always a guide device in front of the sorting position where the friction body is provided, so that the distance between the front and rear sorting positions becomes wider. .

Also, in the unloading device described in Japanese Utility Model Laid-Open No. 62-113127, a friction wheel is swingably provided like a pendulum in the lower part of the carrier, and the friction wheel is conveyed at the time of sorting. It has a structure in which a pair of friction belts are guided and engaged by a road side guide device, and further, it is necessary to hold the friction wheel in a position where it does not contact the friction belt by the spring means and the stop unit in normal times. Therefore, there is a problem in that the structure for supporting the friction wheel becomes complicated and the number of parts and the number of assembling steps increase. Further, in order to guide the pendulum-shaped friction wheel, there is always a guide device in front of the sorting position, so that there is a problem in that the interval between the front and rear sorting positions increases.

The present invention has been made in view of the above points, and a structure of a transport sorting device in which a transport belt moving on a transport path is provided with a sorting belt having a transport direction that intersects the moving direction of the transport body, An object of the present invention is to provide a transport sorting device that can be simplified, can operate reliably, can reduce noise, and can reduce the distance between the sorting positions before and after.

[Structure of Invention]

(Means for Solving the Problems) In the transport sorting apparatus of the present invention, an endless sort having a transport directionality that intersects with the transport direction of the transport body 4 is provided to the transport body 4 moving along the transport path 2. A belt 11 is provided, the sorting belt 11 is wound around a drive pulley 13, and the drive pulley 13 is wound.
13 is a pair of friction wheels 16 and 1 arranged below the carrier 4.
7 through a transmission mechanism 21, and the pair of friction wheels 16, 17
A pair of belt bridges 31 and 32 that move up and down from below
Is provided at a fixed position on the conveying path 2 and the pair of belt receivers 3
A pair of friction belts 34, 35 that move in a direction opposite to the moving direction of the carrier 4 are movably supported on 1, 32, and the pair of friction belts 34, 35 move while moving the carrier 4 and the friction belts 34, 35. One of the belt receivers 31 and 32 selectively advances to the friction wheels 16 and 17 and abuts on one of the friction belts 34 and 35, and a friction wheel 16 that abuts on one of the friction belts 34 and 35 and rolls. The rotation of 17 is transmitted to the drive pulley 13 via the transmission mechanism 21, and the drive pulley 13 is selectively rotated in the forward direction or the reverse direction corresponding to the advanced belt receivers 31 and 32, The above sorting belt
11 is selectively driven toward one side or the other side of the conveying path 2.

(Operation) In the sorting apparatus of the present invention, at the time of sorting, the belt receivers 31 and 32 on the transport path 2 side are advanced from below with respect to the friction wheels 16 and 17 fixedly supported on the lower portion of the transport body 4. This belt receiver 3
Friction wheels 34, 35 movably supported on 1, 32
Since the structure is such that the friction wheels 16 and 17 are brought into frictional contact with each other to roll, the supporting structure of the friction wheels 16 and 17 is simple, and the number of parts and the number of assembling steps are small. In addition, by simply moving the belt bridges 31 and 32 upward and pressing the friction belts 34 and 35 against the friction wheels 16 and 17,
The 7 and the friction belts 34 and 35 are engaged with each other easily and reliably, the engagement is maintained as it is, the sorting belt 11 is rotationally driven, and the belt receivers 31 and 32 are retracted downward to cause the friction belt 34. , 35 and the friction wheels 16, 17 are separated from each other and the sorting belt 11 is stopped, so that the operation is stable and stable, and the noise is less generated. Further, it is not necessary to provide a special guide device before and after the belt receivers 31 and 32 at the sorting position, and since the friction belts 34 and 35 move in the direction opposite to the moving direction of the conveyor 4, the sorting belt 11 is It can be driven significantly and quickly, and the distance between the front and rear sorting positions can be narrowed.

(Embodiment) An embodiment of the transport sorting apparatus of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a fixed frame, and rails 2 are horizontally and parallelly provided on both sides of the fixed frame 1, respectively, and a pair of sprocket wheels on both front and rear ends of the four rows of rails 2 are provided. Is provided,
A pair of endless chains 3 on both sides are hung between the sprocket wheels corresponding to the front and rear of the front and rear sprocket wheels, and the upper traveling portion and the lower traveling portion of the chains 3 on both sides are the four rows described above. The chains 3 on both sides of the chain 3 are supported by the rails 2 and are rotated in synchronization by a drive mechanism (not shown). As shown in FIG. A movable frame 4 is attached, and the plurality of movable frames 4 move the upper part of the fixed frame 1 to one side along the upper rail 2 that constitutes the transport path by the rotation of the chains 3 on both sides. With the upside down,
The lower portion of the fixed frame 1 is moved to the other side along the lower rail 2 that constitutes the return path and circulates. Reference numeral 5 is a roller pivotally supported by the moving frame 4, and is engaged with the rail 2 to support the moving frame 4 on the rail 2.

As shown in FIGS. 1 to 3, an endless sorting belt 11 is provided on each of the plurality of moving frames 4 via a plurality of guide pulleys 12 and drive pulleys 13. 4 is wound around in a conveying direction at right angles to the moving direction of 4, and in particular, it is largely wound around a drive pulley 13 arranged below the moving frame 4.

Further, a pair of friction wheels 16 and 17 on both sides are coaxially positioned by bearings 18 on the lower side of the plurality of moving frames 4 and are supported so as to be rollable in the moving direction of the moving frame 4. The pair of friction wheels 16 and 17 and the drive pulley 13 are connected via a rolling mechanism 21.

Here, the rolling mechanism 21 includes the drive pulley 13 and its shaft.
13a and the friction wheels 16 and 17 and their shafts 16a and 17a are integrally connected, and the bevel gears 22 and 23 are attached to the opposite ends of the shafts 16a and 17a of the friction wheels 16 and 17, and the bevel gears 22 and A bevel gear 24 that meshes with 23 is supported by the moving frame 4 via a shaft 24a integrally connected to the bevel gear 24 and a bearing 25,
The shafts 13a and 24a are connected via a pair of sprockets 26 and 27 and an endless chain 28.
Even if is rotated, the drive pulley 13 is rotated and the sorting belt 11
Can be rotated, but if the rotation direction is the same,
Depending on which of the friction wheels 16 and 17 is rotated, the rotation direction of the drive pulley 13 and the traveling direction of the sorting belt 11 are reversed.

As shown in FIG. 4, a pair of belt receivers 31 and 32 on both sides of the air cylinder 33 are provided at a plurality of positions on the fixed frame 1.
It can be moved up and down by the
The upper traveling part of the pair of endless friction belts 34, 35 is supported on the upper side of the upper part 2 and the lower traveling part of the friction belts 34, 35 is supported by the roller 36 provided on the fixed frame 1. The friction belts 34, 35 are rotated in a direction opposite to the moving direction of the moving frame 4 by a drive mechanism (not shown).

Then, the belt receivers 31 and 32 are separated by the air cylinder 33.
With the upper traveling portions of the friction belts 34 and 35 being supported, the friction belts 16 and 17 of the moving frame 4 moving along the upper rail 2 move forward and backward. When the belt receivers 31 and 32 are lifted by the air cylinder 33 and the friction belts 34 and 35 on the upper portions thereof are brought into contact with the corresponding friction wheels 16 and 17 of the moving frame 4, the friction belts 3 that have come into contact with each other.
The friction wheels 16 and 17 roll with respect to 4, 35, whereby the sorting belt 11 can be rotated, and further, depending on which friction belt 34, 35 is brought into contact with the sorting belt 11, The direction of travel can be reversed.

Here, since the rotation of the friction wheels 16 and 17, that is, the rotation of the sorting belt 11 can be performed by both the movement of the moving frame 4 and the rotation of the friction belts 34 and 35, the sorting belt 11 is rotated greatly and quickly. Even if the belt bridges 31 and 32 are short,
The sorting belt 11 can be moved sufficiently by the length of the upper traveling portion thereof, that is, the length between the upper and outer guide pulleys 12 on both sides.

Then, the belt receivers 31 and 32 and the friction belts 34 and 35 are provided at a plurality of positions along the moving direction of the moving frame 4, and the belt receivers 31 and 32 and the friction belts 34 and 35 are provided at the positions where 5
As shown in FIG. 6 and FIG. 6, a descending inclined discharge chute 41 is provided on the extension of the sorting belt 11 in the traveling direction by the belt receivers 31, 32 and the friction belts 34, 35. And a carry-in conveyor 42 on the upstream side in the moving direction of the moving frame 4 of the sorting section.
Is provided, and a stopper 43 is provided on the opposite side of the carry-in conveyor 42 with the moving frame 4 interposed therebetween.

With such a configuration, in a state where the movable frame 4 is moved by the endless chain 3 like a slat conveyor, the moving conveyor frame 42 is transferred onto the sorting belt 11 of the moving movable frame 4 via the carry-in conveyor 42. When an article (not shown) is carried in and the article is conveyed to the sorting section by the movement of the moving frame 4, the belt receivers 31 and 32 are raised in the predetermined carry-out chute 41 to lift the friction belts 34 and 35 to the friction wheels 16 and 17.
The sorting belt 11 that is in contact with the above and supports the goods is driven toward the discharge chute 41 to discharge the goods to the discharge chute 41.

In this embodiment, when an article (not shown) is loaded onto the sorting belt 11 of the moving frame 4 from the loading conveyor 42, the sorting belt 11 can be driven in the direction of pulling the article.

〔The invention's effect〕

According to the present invention, the article is placed on the sorting belt of the carrier,
The goods are conveyed by the movement of the conveyor, and at a predetermined position,
Drive the sorting belt of the carrier to one side or the other side,
At the time of sorting and sorting the items that were being transported, the friction wheel fixedly supported at the bottom of the transport body advances the belt receiver on the transport path side from below, and the friction belt that is movably supported on this belt receiver is Since the structure is such that the sorting belt is driven by frictionally contacting the friction wheel and rolling, the supporting structure of the friction wheel is simple, and the number of parts and the number of assembling steps can be reduced. Moreover, by simply advancing the belt bridge and pressing the friction belt against the friction wheel, the friction wheel and the friction belt engage with each other easily and reliably, and this engagement is maintained as it is to drive the sorting belt to rotate. At the same time, by retracting the belt receiver downward, the friction belt and the friction wheel are separated and the sorting belt is stopped.
The operation is reliable and stable, and the generation of noise can be reduced. Further, it is not necessary to provide a special guide device before and after the belt receiver at the sorting position, and since the friction belt moves in the direction opposite to the moving direction of the carrier, it is possible to drive the sorting belt largely and quickly. The distance between the front and rear sorting positions can be reduced.

[Brief description of drawings]

FIG. 1 shows an embodiment of the transport sorting device of the present invention.
Figures, 2 and 3 are a front view, a plan view and a side view of the main part, FIG. 4 is an explanatory view of the main part, and FIGS. 5 and 6 are a plan view and a front view showing the arrangement. It is a figure. 2 ... Rails that form a transport path, 4 ... Moving frame as a transporter, 11 ... Sorting belt, 13 ... Drive pulley, 16,17 ... Friction wheel, 21 ... Transmission mechanism, 31, 32 ... … Belt receiver, 34,35 …… Friction belt.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-48-98580 (JP, A) JP-A-51-60382 (JP, A) Actually open 62-113127 (JP, U) Actual-open Sho 62- 183622 (JP, U) Actually open Sho 62-183623 (JP, U) Japanese Patent Sho 49-13747 (JP, B1)

Claims (1)

[Claims] 1. An endless sorting belt having a transporting direction intersecting with a moving direction of the transporting body is disposed on a transporting body moving along a transporting path, and the sorting belt is wound around a drive pulley, This drive pulley is connected to a pair of friction wheels arranged at the lower part of the carrier via a transmission mechanism, and a pair of belt receivers that move up and down from below with respect to the pair of friction wheels are provided in the carrier path. A pair of friction belts, which are provided at fixed positions, are movably supported on the pair of belt receivers so as to move in the direction opposite to the moving direction of the carrier, and the pair of friction belts are moved while moving the carrier and the pair of friction belts. One of the belt receivers selectively advances to the friction wheel and contacts one friction belt, and the rotation of one friction wheel that rolls by contacting this one friction belt is transmitted through the transmission mechanism. Tell the drive pulley And selectively rotating the sorting belt in the forward or reverse direction in response to the advanced belt receiver, and selectively driving the sorting belt toward one side or the other side of the conveying path. Transport sorting device.