JPH0568952U - Luggage transfer device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Automates the transfer of luggage from the conveyor to the carriage. [Structure] The load mounting surface level of the carriage 14 is detected by an optical sensor 32, and the lifter moves the carriage 14 up and down so that the load mounting surface level matches the cargo discharge level of the conveyor 11. The luggage W on the transport conveyor 11 is
It is transferred to the dolly 14 by the pusher 15. When the load W is transferred to the dolly 14, the load mounting surface level of the dolly 14 becomes the upper surface of the load W, the dolly 14 is lowered by the lifter, and the next load is transferred from the transport conveyor 11.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a transfer device for transferring a load from a conveyor to a hand-held cart or the like.

[0002]

[Prior Art]

 Conventionally, when carrying out cargo such as a carton case from a warehouse or the like to the outside, the cargo is sorted and then transferred to a predetermined carry-out station by a conveyor. Then, at the carry-out station, the load is transferred from the transfer conveyor to the trolley by the worker and transported to a predetermined place.

[0003]

[Problems to be solved by the device]

 However, the work of manually transferring the load from the conveyor to the dolly in this way is very troublesome and places a heavy burden on the operator. The present invention has been made in view of the above problems, and it is an object of the present invention to automate the transfer of luggage from a conveyor to a carriage.

[0004]

[Means for Solving the Problems]

 The load transfer device according to the present invention comprises a detection means for detecting the load carrying surface level of a trolley, and an elevating means for moving the dolly up and down so that the load carrying surface level of the trolley matches the load transfer level of the conveyor. And a transfer means for transferring the load on the transfer conveyor to the carriage.

[0005]

【Example】

 The present invention will be described below with reference to illustrated embodiments. In FIG. 1, the transfer conveyor 11 is composed of, for example, a roller conveyor, and is driven by a motor 12 to transfer the load W in the arrow direction. A stopper 13 is fixed to the end portion of the transport conveyor 11, and the load W abuts on the stopper 13 and stops. Then, the luggage W is transferred to the cart carriage 14 by the pusher 15 as described later.

As shown in FIG. 2, the basket cart 14 is surrounded on three sides by a fence 14 a, and the luggage W is taken in and out from the open side of the cart 14. A caster 14c is attached to the lower surface of the bottom plate 14b of the basket cart 14 so that the operator can freely move the floor surface by pushing it.

The basket carriage 14 is arranged on the lifter 21 (FIG. 3) provided on the side of the end portion of the transport conveyor 11 when the cargo W is transferred from the transport conveyor 11. A pusher 15 for pushing the luggage W into the cart 14 is arranged on the opposite side of the transport conveyor 11 from the lifter 21.

A stopper 16 for collecting a predetermined number (two in this embodiment) of the packages W is provided on the upstream side from the end of the transport conveyor 11. The stopper 16 projects from the side or the upper side of the transfer conveyor 11 to the vicinity of the load transfer surface of the transfer conveyor 11 and stops the load W.

An optical sensor 3 1 is provided at a position separated from the stopper 16 on the upstream side by a length equal to or longer than one load. The optical sensor 31 is composed of a light emitting element that projects light above the conveyance path of the package W and a light receiving element that receives the light beam emitted from this light emitting element. To do. It is considered that the second baggage W has arrived by turning on the optical sensor 31 for a certain time or longer. Further, an optical sensor 35 is provided at a position upstream from the optical sensor 31 by a half length of the width of the cart carriage 14 and determines whether or not two conveyed packages can be accommodated in the cart carriage 14. Suru That is, if the optical sensor 31 is turned on while the optical sensor 35 is still turned on, it is considered that only one piece of this package can be stored in the cart 14 and the subsequent transportation of the package is stopped. Only transferred to the basket cart 14.

The control circuit 17 is composed of, for example, a microcomputer, receives an input signal from the optical sensor 31, controls the motor 12 via the drive circuit 18, and drives and controls the transport conveyor 11. Further, the control circuit 17 controls the actuator 20 via the drive circuit 19 in response to the input signal from the optical sensor 31 to operate the pusher 15 and push the load W into the carriage 14. The actuator 20 is composed of, for example, a hydraulic cylinder or an electric motor.

As shown in FIGS. 3 and 4, the basket cart 14 is placed on the lift table 22 of the lifter 21 and is vertically moved by the lifter 21. The lifter 21 is provided in a storage room 24 formed below the floor surface 23, and the lifter 22 can be lowered below the floor surface 23 by the operation of the lifter 21.

As shown in FIG. 3, a pair of poles 25 are erected on the floor surface 23 with the lifting platform 22 interposed therebetween, and each of the poles 25 has a surface on which the luggage of the basket cart 14 is mounted (loading platform). An optical sensor 32 for detecting the surface is attached. The optical sensor 32 includes a light emitting element that projects light above the lifter 21 and a light receiving element that receives the light beam emitted from the light emitting element. The light beam emitted from the light emitting element is projected through the fence 14a of the cart 14 and is received by the light receiving element. The optical sensor 32 is attached at a position which is the same as or slightly lower than the height position of the conveyor 11 (loading transfer level).

A signal from the optical sensor 32 is output to the control circuit 17, and the control circuit 17 drives the actuator 27 via the drive circuit 26 according to the output signal of the optical sensor 32 to move the lift 21 up and down. .. The actuator 27 is composed of, for example, a hydraulic cylinder or an electric motor.

The operation of the apparatus of this embodiment will be described. In the initial state, the lifting platform 22 is at the same height as the floor surface 23. The operator only has to place the empty cart 14 on the lift 22 and all the subsequent loading and unloading will be done automatically.

That is, the lifting platform 22 is raised by the actuator 27, and when the optical sensor 32 detects the loading surface level of the cart 14 (that is, the position of the bottom plate 14b of the cart 14 at the beginning), it stops at that position. To do. During this time, the motor 12 is driven and the conveyor 11 conveys the parcel W. The luggage W contacts the stopper 16 and stops. When the optical sensor 31 detects the second load W, the stopper 16 retracts from the transport conveyor 11 to release the load W. As a result, the two packages W are both sent to the terminal end of the transport conveyor 11 and stopped by the stopper 13. At this time, the stopper 16 again projects to the side of the conveyer 11 to stop the subsequent load.

When a certain time (a time sufficient for the load W to reach the end of the conveyor) elapses after the stopper 16 is released, the actuator 20 is actuated, and the two loads W are both pushed by the pusher 15 to move the basket. The carriage 14 is transferred onto the bottom plate 14b.

As a result, since the optical sensor 32 detects the load W, the lifter 21 is driven and the lift table 22 is lowered, so that the optical sensor 32 moves to the next loading surface level, that is, the upper surface of the load W. Is detected, the lift table 22 stops. Meanwhile, in the same manner as described above, the next two packages are carried to the end of the conveyor 11. Then, these loads are stacked by the pusher 15 on the already transferred loads in the cart carriage 14.

The same operation is repeated thereafter, and when the luggage W is piled up to the uppermost stage, the lift table 22 returns to the position of the floor surface 23. The fully loaded basket cart 14 is unloaded from the lifting platform 22 by an operator and transferred to a predetermined place.

FIG. 5 shows another embodiment of the present invention. In this embodiment, automatic transfer is performed on the loads W having different heights. When the heights of the luggage W are different, it is not possible to transfer the two luggage together, so try to stack the luggage W on each side.

In FIG. 5, a stopper 41 is provided on the upstream side of the stopper 13 and separated by one load. Further, two sets of optical sensors 33 and 34 are arranged with the basket carriage 14 interposed therebetween. The light rays emitted from the optical sensors 33 and 34 pass through the fence 14 a located on the back surface of the cart 14. The other structure is similar to that of the first embodiment.

In this embodiment, the stopper 41 is first retracted, and the packages W are sent one by one and come into contact with the stopper 13 and stop. Then, the luggage W is transferred to the basket cart 14 one by one by the pusher 15. After that, as in the first embodiment, the lift truck 21 lowers the cart carriage 14, and the packages are stacked one by one on the cart carriage 14. At this time, the optical sensor 33 detects the level of the loading surface of the cart 14 and the cart 14 is lowered so that the level of the loading level of the cart 14 and the level of loading the transport conveyor 11 match.

When the stacking up to the uppermost stage is completed, the elevating table 22 is returned to the initial position, and the bottom plate 14b of the cart 14 is made to coincide with the upper surface of the conveyor 11. Then, the stopper 41 projects onto the conveyor 11, and the cargo W is stopped by the stopper 41, and is stacked on the cart 14 by the pusher 15 as described above. When the second row is piled up to the uppermost stage, the cart carriage 14 is returned to the floor surface 23 again, and the transfer operation is completed.

In the above two embodiments, the pusher 15 is used as a means for transferring the cargo W from the conveyor 11 to the cart 14, but the present invention is not limited to this, and the conveyor 11 (roller conveyor) and The transport direction of the package may be changed by using a chain conveyor that transports the package in the orthogonal direction. This chain conveyor normally stands by under the roller conveyor, and when the load reaches the final end, it is projected and driven upward from the roller conveyor to transfer the load toward the cart carriage 14.

Further, instead of the pusher 15, a suction cup or the like may be used to hold and convey the luggage W so that the luggage W can be placed on the cart 14.

Further, in the above two embodiments, the basket cart 14 is arranged on one side of the transport conveyor 11, but it may be arranged on both sides. In that case, the pusher 15 may be provided above the transport conveyor 11, for example.

[0026]

[Effect of the device]

 As described above, according to the present invention, it is possible to automate the transfer of luggage from the conveyor to the carriage.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of a luggage transfer device according to the present invention.

FIG. 2 is a perspective view showing a basket cart used in the apparatus of FIG.

3 is a front view of the transfer device of FIG. 1. FIG.

FIG. 4 is a side view of the transfer device of FIG.

FIG. 5 is a plan view showing another embodiment of the luggage transfer device according to the present invention.

[Explanation of symbols]

 11 Transport Conveyor 14 Basket Cart 15 Pusher 21 Lifter 31, 32, 33, 34 Optical Sensor W Luggage

Claims (1)

[Scope of utility model registration request] 1. A detecting means for detecting a load-carrying surface level of a trolley, an elevating means for moving the dolly up and down so that the load-carrying surface level of the trolley coincides with a cargo transfer level of the conveyor, and a carrier conveyor. A load transfer device, comprising: a transfer means for transferring a load to a carriage.