JPH04148719A - Drive device for classification conveyer - Google Patents

Abstract

PURPOSE:To reduce failure and noise by arranging an endless circulating belt below carriages, supporting its outward belt with a belt receiving guide, and pressure-contacting a friction plate, provided below the carriages, to the upper surface of the outward belt in a tray tiltedly-falling type classification conveyer. CONSTITUTION:An endless circulating belt 2 is wound between pulleys 3 and 3 to be arranged along a conveyer guide path 7, on which carriages 6 move, below the carriages 6 linked in a line. The outward belt 21 of the endless circulating belt 2 is supported with a belt receiving guide 13 fitted to the lower side of rails 9 and 9 provided on the conveyer guide path 7 via a belt receiving guide base 12. On the other hand, a friction plate 19, downwardly energized with a spring 18, is provided on the lower part of, the carriages 6 to be pressure-contacted to the upper surface of the outward belt 21, and is circulatedly moved due to the frictional engagement with the belt 21.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a sorting conveyor drive device for sorting conveyed objects according to purpose during conveyance.

(Prior Art) Conventional sorting uses a chain drive system as a conveyor drive device. For example, a sorting conveyor is constructed by attaching a large number of carriages to an endless chain, and the chain is driven by a single large-capacity drive motor.

(Problems to be Solved by the Invention) As mentioned above, the conventional sorting conveyor drive device uses a chain, which has a problem in that the operating noise is large and generates noise. In addition, there is a problem in that the expansion and contraction of the chain can cause poor engagement with the drive wheel, which can lead to breakdowns. Furthermore, since the drive unit consisted of a single large-capacity drive motor, if a failure occurred in the drive unit, the conveyor would no longer be able to operate, which would take time to restore and cause confusion in the sorting work. There was also a problem.

The purpose of the present invention is to provide a novel drive device for a conveyor for sorting without noise.Furthermore, by providing a drive device with fewer failures and installing a plurality of such drive devices in one conveyor, it is possible to It is an object of the present invention to provide a novel drive device that allows the operation of a conveyor to be unhindered even if one of the drive devices breaks down.

(Means for Solving the Problems) In order to achieve the above object, in the drive device of the present invention, a number of carriages are connected, and the sorting which circulates along the conveyor guide path is carried out below the carriages on the conveyor. An endless circulation belt mechanism is provided that operates along a part of the conveyor guide path, and the outbound belt is placed on a belt receiving guide fixed to the conveyor guide path, and a downward pressure is applied to the lower part of the carriage. It is characterized in that a friction plate to which force is applied is provided, and this friction plate is brought into pressure contact with the outgoing belt.

It is preferable that the belt receiving guide is removably attached to the conveyor guide path, and that the belt receiving guide can be removed downwardly.

Furthermore, the drive device of the present invention is characterized in that a plurality of the drive devices are arranged in a conveyor for one sorting operation.

(Function) When the drive device configured as described above is operated, that is, when the endless circulation belt mechanism is operated, the circulation belt circulates. Therefore, the carriage on this circulation belt has a friction plate that applies a downward pressure of one bullet, and this friction plate is in pressure contact with the outgoing belt of the above belt.
The carriage moves along with the belt due to the frictional resistance between the belt and the friction plate.

In a case where a plurality of drive devices are arranged in a conveyor for one sorting, when each drive device is activated, each drive device operates a carriage.

Therefore, in the event that any of the drive devices breaks down, the belt receiver guide that supports the outgoing portion of the circulation drive belt can be removed from the conveyor guide path and removed downward, and this portion of the belt will no longer be driven. It does not, but other drives actuate the carriage. A drive belt device that has failed during this operation can therefore be repaired.

(Example) The present invention will be described in detail below using examples shown in the drawings.

FIG. 1 shows an embodiment of a driving device which is the basis of the present invention. In the figure, 1 is an endless circulation belt mechanism, in which sorting is arranged in a part of the straight section of the conveyor. FIG. 2 shows an example in which a plurality of endless circulation belt mechanisms 1 are arranged.

As shown in the figure, these endless circulation belt mechanisms 1 have end pulleys 3, 3 positioned at both ends in order to circulate the belt 2 by folding it back, and circulate through guide pulleys 4.4. A drive motor 5 is positioned at an intermediate position, and the belt 2 is circulated by its driving force.

In the figure, reference numeral 6.6 denotes a large number of carriages, which are connected in - rows and are operated along a conveyor guide path, which will be described later.

The conveyor guideway 7 is constituted by a pair of parallel frames 8.8 and a pair of parallel rails 9, 9 fixed on the inside thereof. The rail 9.9 is formed from a known extruded or drawn light metal material and has roller guides 10.10 on its upper edge parallel to each other and facing each other.

A space 11 is formed below the rails 9,9. Positioned in this space 11, a belt receiving guide base 12 is detachably attached to the lower part of the rail 99. This detachable structure may be a bolt-and-nut structure or a known toggle structure. A belt receiving guide 13 is provided at the center of this belt receiving guide base 12, and this belt receiving guide 13 is positioned between the rails 9.

The belt receiving guide 13 is made of steel and has a U-shaped cross section to form a hollow shape 14, and the endless circulation belt mechanism 1
The outgoing belt 21 of the belt 2 is placed and guided on the heald receiving guide 13, and the returning heald 22 is placed on the belt receiving guide 13.
It is intended to be guided into the hollow shape 14 of.

The carriage 6 is composed of a cart 15 that travels while being guided by the conveyor guide path 7, and a tray 16 that is rotatably provided on the cart 15, and carries a large number of carriages 6,
6 are meanderably connected by a connecting rod 17.

The trolley 15 has running wheels 25.25 at the front and rear positions of a platform 23 having pillars 24, 24 at the front and rear, and guide rollers 26, 26 at the front and rear positions as well. is guided by the rail 99, and the guide rollers 26, 2
6 is guided between roller guides 10 and 10. A roof-shaped stopper 30 is fixed at the rear position of the upper end of the front support column 24, and has locking protrusions 31 and 31 formed at the left and right positions and cooperates with a detection member to be described later.

The tray 16 is provided with legs 27.27 on the front and rear, and the lower ends of the legs 27.27 are attached to the upper ends of the above-mentioned front and rear columns 24.24.
1, and is designed to be tilted around this axis 28. The tray 16 is tilted forward in the direction of travel of the tray, rather than tilted around a horizontal axis, since this is more effective in sorting the conveyed items. 24 is configured lower than the rear support column 24, the upper end of the support column and the lower end of the leg 27 are tilted, and the shaft 28 is also slightly inclined without being horizontal.

The tray 16 is provided with bearing plates 29.29 wider than the legs 27 in proximity to the front and rear legs 27.27, and detection members 32.3 are positioned on the left and right and between the front and rear bearing plates 2929.
2 is supported by a shaft 33.

This detection member 32 has a locking piece 3434 that hangs downward and a projecting portion 35.35 that projects outwardly and laterally, and due to the weight balance between the hanging locking piece 34 and the projecting portion 35,
Alternatively, by the traction force of a spring 39 stretched between the left and right hanging locking pieces 34, 34, the hanging locking pieces 35 are given swingability so that they always swing inward, and each hanging locking piece 3
A locking pin 36 is provided at the lower end of 5, 35 and protrudes forward.
36, and this locking pin 36 is locked with the locking protrusion 31.31 of the stopper 30 to keep the tray 16 horizontal.

A detection piece 37 is provided on the projecting portion 35 of the detection member 32, and the detection piece 37 is lowered toward the rear.
The hanging locking piece 35 is swung outward, the locking pin 36 is disengaged from the locking protrusion 31 of the stopper 30, and the tray 1 is pushed up by the tripper 38.
6 is tilted.

At the bottom of the carriage 6.6, that is, at the bottom of the truck 15,
A friction plate 19 to which a downward elastic force is applied by a spring 18 is provided, and this friction plate 19 is brought into pressure contact with the outward belt 21 of the endless circulation belt mechanism 1.
By pressing the friction plate 19 against the belt 9, the friction plate 19 is moved to the forward heald 2.
1, and the carriage 6 is moved in a circular manner by the heald 2. Furthermore, 40 in the figure is a friction plate 1
9. This is a stopper that prevents displacement below a certain position.

In the embodiment as described above, when the drive motors 5,5 of all the endless circulation belt mechanisms 1,1 are operated, all the endless circulation belt mechanisms 1.1 are also operated. Therefore, the outbound belt 2121 of each belt 2 moves in the direction of movement of the conveyor. A plurality of carriages 66 are positioned on the outgoing belt 21, and each carriage 66 is in elastic pressure contact with the outgoing belt 21 by the friction plate 19 at the bottom of each carriage or by the elastic force of the spring 18. 6 moves in response to the moving force of the outgoing belt 21.

In the part where the endless circulation belt mechanism 1 shown in FIG.
17, it moves by receiving the moving force of the front and rear carriages.

Therefore, if any of the endless circulation belt mechanisms 1 breaks down and the outgoing belt 21 stops moving, the belt receiving guide base 12 should be moved to the rail 9 that constitutes the conveyor guide path.
If the belt receiving guide 13 is removed from the carriage 9 and moved downward, the belt receiving guide 13 also moves downward, and the friction plate 19 of the carriage 6 is not displaced below a certain position by the stopper 39, so that it is no longer subjected to the elastic pressure contact. Therefore, the carriage is not affected by the moving force of the failed endless circulation belt mechanism 1, but is driven by the other endless circulation belt mechanisms 1, and the sorting operation can be continued without stopping the operation of the conveyor. Then, after the work is completed, the broken endless circulation belt mechanism can be restored.

(Effect of the invention) As mentioned above, in the present invention, an endless circulation belt mechanism is provided,
A friction plate with a downward elastic force is provided at the bottom of the carriage, and this friction plate is brought into pressure contact with the outgoing belt of the endless circulation belt mechanism, so that the drive part that is caused by the expansion and contraction of the chain like a chain drive is prevented. This has the effect of creating a drive device with fewer failures without the risk of poor engagement with the motor. Furthermore, since it is not chain driven, it has the advantage of being a quiet drive device with little noise.

Furthermore, in the present invention, a plurality of drive mechanisms are provided in the conveyor for one sorting operation, so that even if one of the drive mechanisms breaks down, the sorting can be carried out by other drive mechanisms without stopping the operation of the conveyor. Even in this case, the belt receiving guide on which the outbound belt is placed can be removed downward, stopping the operation of one drive belt, eliminating resistance with the friction plate, and completing the work. This also has the effect of allowing you to carry out restoration work later.

[Brief explanation of the drawing]

The drawings show an embodiment of the device of the present invention; FIG. 1 is a front view showing its basic configuration, FIG. FIG. 4 is a partial front view showing an enlarged view of the main parts including the carriage, and a side view as well.

Claims (2)

[Claims] (1) In a tray tilting type sorting conveyor that connects a large number of carriages and circulates along a conveyor guide path, an endless circulation belt mechanism that operates along a part of the conveyor guide path is installed below the carriage. The outgoing belt is placed on a belt receiving guide fixed to the conveyor guide path, a friction plate with downward elastic force is provided at the bottom of the carriage, and this friction plate is pressed against the outgoing belt. A sorting conveyor drive device characterized by: (2) The sorting conveyor drive device according to claim (1), wherein the belt receiver guide is detachably attached to the conveyor guide path, and the belt receiver guide can be removed downwardly. (3) In a sorting conveyor that connects a large number of carriages and circulates along a conveyor guide path,
An endless circulation belt mechanism that operates along a part of the conveyor guide path is provided below the carriage, and the outbound belt is placed on a belt receiving guide fixed to the conveyor guide path. A friction plate to which a downward elastic force is applied is provided, the friction plate is brought into pressure contact with the outgoing belt to constitute a drive mechanism, and a plurality of these drive mechanisms are arranged in one sorting conveyor. Sorting conveyor drive device.