JPS588459A - Conveyor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a type of conveyor conveyance system that uses mole rails installed in factories, automated warehouses, etc. to transport workpieces or articles from a place to a target place to perform a predetermined work. This invention relates to a conveyor that can be operated safely and reliably even in a bad atmosphere such as a flammable or ignitable atmosphere caused by painting.

Conventionally, as the above-mentioned type of conveyor, there is a type in which a vibrating truck consisting of a main vehicle and a driven vehicle each having a self-traction force is suspended and self-propelled on a mole rail equipped with a trolley wire.

In such a conveyor, when painting work or articles to be carried and transported by a hanger member integrated with the electric trolley.

Because the working atmosphere becomes flammable or ignitable.

There is a drawback that there is a risk of explosion due to sparks between the trolley wire and the collector when the electric trolley is running.

In contrast, the present invention seeks to provide a conveyor that can eliminate the above-mentioned drawbacks.

The gist of this is that a hanger frame on which workpieces or articles are to be placed is removably suspended from the transport frame of an electric cart, and the electric cart is placed at a predetermined location on a transport line consisting of self-propelled mole rails. According to the present invention, a chamber and an endless belt drive mechanism are provided together, and the hanger frame is configured to travel only in the processing chamber by the operation of the drive mechanism. A processing chamber for painting is installed at the location, and the workpieces or articles that have been carried by the hanger members of the electric trolley are removed from the electric trolley with each hanger member and transferred to an endless belt. Because the drive mechanism allows the wire to pass through the processing chamber, even if the atmosphere becomes flammable or ignitable due to painting work, the electric trolley will not be energized, so sparks will not occur between the trolley wire and the collector. Therefore, it has the advantage of being able to prevent explosions and allowing predetermined work to be carried out safely and reliably.

Next, the present invention will be explained in more detail with reference to an embodiment shown in FIGS. 1 and 2.

In FIG. 1, 1 is a well-known electric trolley having self-traction force, 2 is a mole rail on which the electric trolley is suspended and runs, 3 is a trolley wire, and 4 is a process for painting etc. to form a safety zone. Chambers 5 and 5 respectively indicate endless band drive mechanisms.

The electric trolley mainly has a motor 7 attached to either one of a pair of leading frames 6 and trailing frames 6'.
It consists of a main vehicle 8 and a driven vehicle 9 that drive and run on the mole rail 2 on a leading frame 6 (in the figure, a leading frame 6), and a transport frame 10 that connects the two frames. A current collector 11 for feeding power to the motor is provided, and is disposed oppositely on both sides of the transport frame in the direction of movement.
is supported, and the support is provided by the inner end of the shirt 16, which is pivotally supported on opposing brackets 15 provided on the upper surface of the hanger frame, resting on the support metal fitting. The wheels 17 attached to the outer end of the shaft run on the lifting rail 1 and the fixed rail 19.

Further, the processing chamber 4 in which the workpiece or article 13 is to be painted is located at a predetermined location of the conveyance line formed by the mole rail 2.
-L, and is preferably attached to the fixed rail 19 in the processing chamber to be installed, and is mainly a driving wheel (
It consists of a sprocket wheel (sprocket wheel) 20, a driven wheel (sprocket wheel) 21, and an endless belt (endless chain belt) 22 mounted on these two wheels. A latching member (
In this case, the length of the drive mechanism is such that the electric trolley 1 can be stopped with sufficient margin on the downstream side (inlet) and upstream side (exit) of the processing chamber. Preferably selected.

In addition, as shown in FIG.
5. Pulley 26. It consists of a wire 27 and an attachment 2, which is tied to the end of the wire and carries a lifting rail 18 so that it can move up and down along the mast.

Therefore, in the present conveyor having the above configuration,
For painting, the workpiece or article 13 that has been transported from the direction of arrow A at a speed of about 20 m/see on the hanger frame 14 supported by the transport frame IO of the electric trolley 1 is placed in front of the processing chamber 4. By cutting off the power supply to the trolley wire 3 at
It stops at position (A') at the same time as it stops at position (A). Next, the lift mechanism 24 is activated, and the elevating rail 18 integrated with the attachment 28, which had been in the (B) position, is
By raising the rail to the position (a) and further raising the attachment, the lifting rail is moved to the wheel 17.
is lifted to position (C), and the workpiece or article 13 is moved to position C.'
) position, the support fitting 12 of the transport frame 1O and the shaft 16 attached to the bracket 15 of the hanger frame 14 are disengaged, and if the trolley wire 3 is energized in this state, the electric trolley 1 moves to the mole position. z and passes above the processing chamber 4.

The workpiece or article 13 coated in the processing chamber is stopped at a position where it is suspended from the transport frame 10 of the electric trolley.

Next, the lift mechanism 24 is operated in reverse until (
c) If the lifting rail 18 that was in the position is lowered to the (off position, that is, to the same level as the fixed rail 19), 0
The workpiece or article 13 that was at the =) position becomes the (mouth') position. Therefore, when the endless belt drive mechanism 5 is operated, the endless belt 22 is driven to circulate in the direction of arrow B, and the hooking member 23 of the endless belt engages with the shaft 16, so that the wheel 17
The workpiece or article 13 travels on the lifting rail 18 and is transferred to the fixed rail 19, and at the same time the workpiece or article 13 is carried into the processing chamber 4 and painted. This is because the hanger frame 14 can be transported by the endless belt drive mechanism even in a bad atmosphere such as a sexual atmosphere.

There are no sparks, so there is no risk of explosion.

This allows safe and reliable painting work.

Next, the hanger frame 1 carrying the finished work or article 13 is moved by the operation of the endless belt drive mechanism 5.
4 stops when it exits to the upstream side of the processing chamber 4, and the above-mentioned
The trolley frame is suspended from the transport frame 10, and by resupplying power to the trolley wire 3, the electric trolley 1 runs on the mole rail 2 and moves to the next process.

[Brief explanation of drawings]

FIG. 1 is a schematic front view showing essential parts of a conveyor according to the present invention, and FIG. 2 is a side view showing a different operating mode. The correspondence between the main parts shown in each figure and the symbols is as follows. DESCRIPTION OF SYMBOLS 1... Electric trolley, 2... Molar rail, 3... Trolley wire, 4... Processing chamber, 5... Endless band drive mechanism, 1
0...Transportation frame, 12...Supporting metal fittings, 13...
・Work or article, 14...hanger frame, 15
...bracket, 16...shirt), l'7...
- Wheels, 18... Elevating rail, 19... Fixed rail, 24... Lift mechanism.

Claims (1)

[Claims] A hanger frame on which a work or article is to be placed is removably suspended from a transport frame of an electric trolley, and a processing chamber and an endless belt drive mechanism are installed at a predetermined location of a transport line consisting of a mole rail on which the electric trolley runs. A transport conveyor, characterized in that the hanger frame is installed in parallel and configured such that the hanger frame travels only within the processing chamber by the operation of the drive mechanism.