JPH0530722B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a conveying device that carries articles and moves them in a uniaxial direction.

Conventional technology Among uniaxial conveyance devices, conveyance devices that overhang the main body base, such as transferring articles to a shelf installed on a wall, have been increasingly used in automatic warehouses for goods, etc. are doing.

An example of the conventional conveying device mentioned above will be described below with reference to the drawings.

FIG. 5 shows a schematic structure of a conventional conveying device. In FIG. 5, 1 is a main body base, and 2 is a sub-base, which can be slid up and down with respect to the main body base 1 by means of a vertical cylinder 3 and a vertical slide shaft 4. Reference numeral 5 denotes a first slide block, which slides horizontally on the sub-base 2 by means of a first front-rear cylinder 6 and a slide shaft 7 supported on the sub-base 2. Reference numeral 8 denotes a second slide block, which can be slid horizontally on the sub-base 2 by means of a second front-rear cylinder 9 supported on the sub-base 2 and the above-mentioned front-rear slide shaft 7. 10 is a conveyor attached to the main body base 1, and is operated horizontally by a motor 11.

The operation of the conveyance device configured as described above will be described below with reference to FIGS. 5 to 12.

First, as shown in FIG. 5, when the first slide block 5 moves below the conveyed object 12, the sub-base 2 is raised by the vertical cylinder 3, and the conveyed object 12 is placed on the first slide block 5. (6th
figure). Next, when the first slide block 5 is moved horizontally by the first front and rear cylinder 6, the conveyed object 12 is transferred to the upper end of the conveyor 10 (the seventh
figure). Here, the sub base 2 is
When the conveyor 12 descends, the conveyed object 12 is passed onto the conveyor 10 (FIG. 8). Next, when the conveyor 10 is operated by the motor 11, the conveyed object 12 is transferred to the conveyor 10.
It is transported along the top to the other end (Fig. 9). Here, when the sub-base 2 rises again, the transported object 12 moves onto the second slide block 8 (FIG. 9). Then the second
When the second slide block 8 is moved horizontally by the front and rear cylinders 9, the object 12 to be transported is transferred to the transport position (FIG. 10). Here, as the sub-base 2 descends, the conveyed object 12 descends from above the second slide block 8 and completes conveyance (the 11th
figure).

Problems to be Solved by the Invention However, in the above configuration, the first slide block, conveyor, and second slide block are operated by separate drive sources, so the structure including electrical control is complicated. Furthermore, since the objects to be conveyed are transferred from the first slide block to the conveyor and from the conveyor to the second slide block during conveyance, there are many unstable factors during conveyance and the conveyance takes time.

In view of the above-mentioned problems, the present invention provides a conveyance device that has a simple structure and can carry out stable conveyance in a short time.

Means for Solving the Problems In order to solve the above problems, the conveying device of the present invention provides a first rack that is held slidably in a uniaxial direction with respect to the main body base and that engages with a first rack that is fixed to the main body base. a first slide block having a pinion; a second slide block having a second rack slidably held in the axial direction with respect to the first slide block and meshing with a second pinion provided on the first slide block; A third slide block is held slidably in the axial direction with respect to the second slide block and is connected to a moving chain by a sprocket provided on the first slide block, and a third slide block is fixed to the first slide block and has a first pinion and a third slide block. It is equipped with two pinions and a drive motor that provides rotational drive to the sprocket.

Effects According to the above-described configuration, the present invention has a simple structure including electric control because the drive source for conveyance is only one drive motor. Further, since the object to be transported is transported while being placed on the third slide block without being handed over midway, the unstable factors during transport are reduced and the transport time is also reduced.

Embodiment A conveying device according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the structure of a conveying device in an embodiment of the present invention. In FIG. 1, 13 is a main body base, and 14 is a first rack fixed to the main body base 13. Reference numeral 15 denotes a first slide block, which is held on the main body base 13 by a linear guide 16 so as to be slidable in one axis direction. 17
is a first pinion that meshes with the first rack 14, and a first pinion held on the first slide block 15.
It is installed on the same axis as the pulley 18. A second slide block 19 is held slidably in the axial direction by a first V rail 21 guided by a first V roller 20 installed on the first slide block 15. 22 is a second rack fixed to the second slide block 19. 23
is a second pinion that meshes with the second rack 22;
It is installed on the same axis as the pulley 24. A third slide block 25 is held slidably in the axial direction by a second V roller 27 running on a second V rail 26 fixed on the second slide block 19. A sprocket 28 is installed on the same axis as the third pulley 29 held by the first slide block 15. 30
is a chain moved by a sprocket 28, and is connected to the third slide block 25 at its end. 31 is the first slide block 15
The motor is fixed to the first pulley 18, second pulley 24, third pulley 2 via a belt
By transmitting rotational force to the first pinion 1
7. Rotate the second pinion 23 and sprocket 28.

The operation of the conveyance device configured as described above will be explained below with reference to FIGS. 2 to 4.

First, as shown in FIG. 2, the first slide block 15 is at the sliding end with respect to the main body base 13, the second slide block 19 is at the sliding end with respect to the first slide block 15, and the second slide block 19 is at the sliding end with respect to the main body base 13. On the other hand, when the third slide blocks 25 are located at the respective sliding ends, the third slide blocks 25 move to the lower part of the conveyed object 33, and at this time, the main body base 1 is moved by the vertical drive unit (not shown).
3 rises, the conveyed object 33 is placed on the third slide block 25. Next, when the motor 31 rotates, the first pinion 17, second pinion 23, and sprocket 28 rotate, respectively. When the first pinion 17 rotates, it engages with the first rack 14, thereby moving the first slide block 15 on the main body base 13. When the second pinion 23 rotates, it engages with the second rack 22, thereby causing the first
A second slide block 19 moves on the slide block 15. When the sprocket 28 rotates, the chain 30 moves, and the third slide block 25 moves on the second slide block 19. In this way, as shown in FIGS. 3 and 4, the first slide block 15, the second slide block 19, and the third slide block 25 each move to the other end, so that the object 33 is moved to the transfer position. It will be posted. At this point, the main body base 13 is lowered by the vertical drive unit, and the transported object 33 descends from the third slide block 25, completing the transport.

Effects of the Invention As described above, the present invention has a first slide block that is held slidably in a uniaxial direction with respect to a main body base and has a first pinion that meshes with a first rack fixed to the main body base; a second slide block having a second rack that is held so as to be slidable in the axial direction with respect to the slide block and that engages with a second pinion provided on the first slide block; a third slide block connected to the chain which is movably held and moved by a sprocket provided on the first slide block; and a drive which is fixed to the first slide block and provides rotational drive to the first pinion, the second pinion and the sprocket. By providing a motor, conveyance on one axis from the main body base to an overhanging position can be achieved with only one drive motor, simplifying the structure and realizing stable and short-time conveyance. .

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the structure of a conveying device according to an embodiment of the present invention, FIGS. 2, 3, and 4 are conveying process diagrams of the same conveying device, and FIG. 5 is a schematic diagram of a conventional conveying device. The structural drawings and FIGS. 6 to 12 are transport stroke diagrams of the transport device. 13...Body base, 14...First rack, 15...
1st slide block, 17... 1st pinion, 1
9...Second slide block, 22...Second rack,
23...Second pinion, 25...Third slide block, 28...Sprocket, 30...Chain, 31
…motor.

Claims (1)

[Claims] 1. A first slide block that is held slidably in one axial direction with respect to the main body base and has a first pinion that meshes with a first rack fixed to the main body base, and that is slidable in the axial direction with respect to the first slide block. a second slide block having a second rack that is held in the second slide block and meshes with a second pinion provided on the first slide block; a third slide block connected to a chain moved by a sprocket; and a drive motor fixed to the first slide block and providing rotational drive to a first pinion, a second pinion, and the sprocket. Device.