JPS60242136A - Tray elevator type unloader - Google Patents

Abstract

PURPOSE:To prevent a cargo from dropping from a tray to enhance the efficiency of cargo landing, by providing a conveyor on a horizontally telescopic jib at one end of a jib body which is vertically oscillated, and by providing a vertical tray elevator at the front end of a telescopic member. CONSTITUTION:Carton boxes 16 which are loaded on a loading conveyor 43 and conveyed to a receiving conveyor 48, are successively scooped up by a tray 15, and are transferred onto a telescopic conveyor 23 by means of a relay conveyor 41 after passing through the inside of the vertical tray elevator 24. In this case, the boxes 24 on the conveyor 23 never drops drom the conveyor 23 since the conveyor does not oscillate, appreciaby so that the boxes 16 are successvely delivered onto a ground conveyor 51 under a stable condition through a machine conveyor 50. Further, a telescopic jib 21 is swung within an angle range to extend and retract the telescropic member 26 within a stroking range S, and the loading section 53 changes its vertical and horizontal positions within an area surrounded by points A1-A4 to enlarge the working area.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a tray elevator type unloader for unloading cargo such as carton boxes filled with fruit etc. loaded on a ship, and particularly to a vertical conveyance section. The present invention relates to a tray elevator type unloader that employs a vertical tray elevator and a telescopic conveyor in the horizontal transport section.

[Background of the invention]

As shown in FIG. 1, a conventional tray elevator type unloader 1 employs tray elevators 4 in a vertical conveyance section 2 and a horizontal conveyance section 3, respectively.

Both conveyance sections 2 and 3 are connected by a chain 5.

The chain 5 in the horizontal conveyance section 3 is connected to the unloader main body 6
The main boom 7 has one end pivotally connected to the main boom 7 and can swing vertically using the one end as a fulcrum, and is supported by a plurality of chain guides 8 and guide sprockets 9 attached to the unloader body 6, respectively.

The upper part of the vertical conveyance section 2 has one end pivotally attached to the middle part of the main boom 7 and the other end of the auxiliary boom 0. Further, the other end of the auxiliary boom 10 is constantly suspended by a wire loso 12 wound around a winch 11 installed near the other end of the main boom 7.

By winding or unwinding this wire rope 12, the auxiliary pool 10 is made to swing in the vertical direction.

Due to the cooperation between the main pool 7 and the auxiliary pool 10, the vertical and horizontal positions of the cargo loading section 13 located below the shaft vertical conveyance section 2 can be changed as desired.

Since the conventional tray elevator type unloader 1 is configured as described above, when the plurality of trays 15 supported by the chain 5 in the horizontal conveyance section 3 swing due to wind or vibration, the trays 15 are placed on the trays 15. Carton boxes and other cargo may fall, creating a risk of injury to persons. The horizontal transport section 3 has many chain guides 8. A guide sprocket 9 and a tray 15 are required, and maintenance and inspection work for these is not easy.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a tray elevator type unloader that prevents the trouble of cargo falling from the tray and facilitates daily maintenance and inspection work.

[Summary of the invention]

The tray elevator type unloader of the present invention consists of a jib body whose one end is pivotally connected to the unloader body and can swing vertically, and an extensible member attached to the other end of the jib body so that it can expand and contract in the horizontal direction. A telescoping jib, and a telescoping conveyor attached to the telescoping jib and expanding and contracting in synchronization with the telescoping member to convey the cargo in the horizontal direction, and a telescoping conveyor that is pivoted in the vertical direction at the tip of the telescoping member to transport the cargo in the vertical direction. A vertical tray elevator is provided for conveyance.

According to the above-mentioned configuration, the cargo can be transported in a stable state in the horizontal direction by the telescopic conveyor. Additionally, due to the cooperative action of the vertical swinging motion of the jib body of the telescopic jib and the horizontal telescoping motion of the telescoping member, the vertical and horizontal positions of the cargo loading section at the bottom of the vertical tray elevator can be significantly changed. Can be done.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

The tray elevator type unloader 20 has a telescopic jib 2
1, a telescopic conveyor 23, and a vertical tray elevator 24.
It is equipped with

The telescopic jib 21 consists of a jib main body 25 and a telescopic member 26. One end of the shag main body 25 is pivotally connected to the unloader main body 6 by a pin 28, and a pulley 30 and a luffing winch are fixed to the upper surface of the other end. A wire rope 32 is wound between the wire rope 31 and the shaft.

By winding or unwinding the wire rope 32, the telescopic jib 21 swings vertically about the pin 28 as a fulcrum. The telescopic member 6 is connected to the jib main body 25
It is slidably inserted into and can be expanded and contracted by a suitable expansion and contraction mechanism.

The telescopic conveyor 23 is attached to the jib body 25 and
It expands and contracts in synchronization with the expansion and contraction of the expandable member 26.

The upper part of the vertical tray elevator 24 is pivotally connected to the tip of the telescopic member 26 by a pin 34, so that the vertical tray elevator 24 always maintains a vertical state no matter how the telescopic jib 21 is inclined. The vertical tray elevator 24 has sprockets 35 and 36 rotatably supported at its upper and lower parts, respectively, and an endless chain 38 is wound between these sprockets 35 and 36. Trays 15 are rotatably supported on the chain 38 by pins 40 at nine equal intervals. Also vertical tray elevator 2
4 and the telescopic conveyor 23.

A relay conveyor 41 is provided for relaying the cargo 9 placed on the tray 15, such as the carton box 16, to the telescopic conveyor 23.

In FIG. 2, a cargo loading conveyor 43 is attached to a hold 46 (see FIG. 1) of a ship 45.

A receiving conveyor 48 is disposed between the cargo loading conveyor 43 and the lower part of the vertical tray elevator 24. Further, an in-machine conveyor 50 is attached to the unloader main body 6 at the rear adjacent to the telescopic conveyor 23. Further, ground conveyors 51 are disposed adjacent to and rearward of the in-machine conveyor 50 and orthogonal to the in-machine conveyor 50, respectively.

The speed of raising and lowering the tray 15, the speed of the telescopic conveyor 23, and the speed of the in-machine conveyor 50 are all set to be the same and can be changed.

Next, the operation of one embodiment of the present invention will be explained.

The takaton boxes 16 loaded manually onto the cargo loading conveyor 43 are conveyed to the receiving conveyor 48, where they are successively scooped up by the trays 15, passed through the vertical tray elevator 24, and transferred via the relay conveyor 41. and is conveyed to the telescopic conveyor 23. In this case, the carton box 16 on the telescopic conveyor 23 hardly swings even if there is wind or vibration.

In-machine conveyor 50 in a stable condition without falling
and finally delivered to the ground conveyor 51.

In addition, the wire rope 32 of the hoisting winch 31 is wound up or unwound, the telescopic jib 21 is swung over a range of swing angle α, and the telescoping member 26 is extended and contracted over a range of a telescoping stroke S by the telescoping mechanism. As a result, the cargo loading section 53 located at the bottom of the vertical tray elevator 24 (a position that almost coincides with the center of the striped rocket 36) can be positioned vertically and horizontally within a range surrounded by nine points Al, A2, A3, and A4. The position can be changed, making the work range very flexible.

〔Effect of the invention〕

As described above, according to the present invention, cargo transported horizontally by a telescoping conveyor has almost no fear that the telescoping conveyor will move even in the presence of wind or vibration.

In addition, the vertical and horizontal positions of the cargo loading section at the bottom of the vertical tray elevator can be changed over a wide range by the cooperative action of the vertical swinging movement of the jib body of the telescoping jib and the horizontal telescoping movement of the telescoping member. Therefore, the work area is very large, which has the effect of greatly improving landing efficiency.

[Brief explanation of the drawing]

FIG. 1 is a side view of a conventional tray elevator type unloader, and FIG. 2 is a side view of a tray elevator type unloader according to the present invention. 6...Unloader body. 16... A carton box is an example of cargo. 20...Tray elevator type unrotor. 21... Telescopic jib, 23... Telescopic conveyor. 24...Vertical tray elevator. 25... Jib body, 26... Telescopic member.

Claims (1)

[Claims] A tray elevator type unloader for unloading cargo includes a jig body whose one end is pivotally connected to the unloader body and can swing vertically, and an extensible member attached to the other end of the jib body so that it can expand and contract horizontally. a vertical tray elevator which is pivoted vertically at the tip of the telescopic member and transports the cargo in the vertical direction; A tray elevator type unloader characterized by being provided with a telescopic conveyor for conveying in a direction.