JPS5835896B2 - Trolley conveyor transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for transferring a conveyed object from a first trolley conveyor line to a second trolley conveyor line, for example from a press work line to a welding work line, while suspending the conveyed object from a secondary hanger device. The present invention also relates to a trolley conveyor transfer device for transferring an empty secondary hanger device in reverse.

Conventionally, as this type of transfer device, Japanese Patent Application Laid-Open No. 55-806
As shown in Publication No. 25, a device using a slat conveyor is known, but this device uses slats that are supported in a cantilever manner, and the conveyor is rotated with the support frame suspended from the conveyor. Therefore, it was difficult to apply it to trolley conveyor lines that transport heavy objects, such as press and welding work lines in the automobile industry.

Therefore, in the present invention, the primary hanger device has a structure in which a movable rail is swingably suspended and supported, and the movable rail has two
The secondary hanger device can be fixed and held, the movable rail is aligned with the end of the load rail of the secondary hanger line, and the secondary hanger device is transferred, so that the transported object is always supported vertically by the load rail. The object of the present invention is to provide a trolley conveyor transfer device that can also transfer heavy objects.

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

As shown in FIGS. 1 and 2, the trolley conveyor line 1 consists of a primary hanger line 2, which constitutes a welding work line, etc., and a secondary hanger line 3, which constitutes a press work line, etc., and each hanger line 2 , 3 turning section 2
a and 3a extend linearly by a predetermined length to form transfer parts A and B, respectively.

The trolley conveyor line 1 is a power and free (double acting) conveyor, and therefore has a power chain rail 5 and a load rail 6, respectively, and the primary hanger line 2 is a secondary hanger line 3.
It is installed at a height corresponding to the height of the primary hanger device γ, and has a structure in which the transfer parts A and B partially overlap each other, and each hanger line 2 and 3 has a primary hanger device, respectively. 7 and a secondary hanger device 9 are running and supported.

Furthermore, transfer part A. Primary hanger feeders 10 and 11 and secondary hanger feeders 12 and 13 each consisting of an air cylinder or the like are installed in B, and the secondary hanger feeders 10 and 11 are each connected to a pusher device 1.
0a, 11a and a stopper device 10b.

11b.

In addition, 15a and 15b in the figure are parts A where the rail 6 of the primary hanger line 2 is transferred.

Alternatively, it is a branch switch that switches to the turning section 2a.

Further, as shown in FIG. 3, a guard rail 19 is provided at the transfer section A where the secondary hanger device 9 is transferred from the secondary hanger line 3 to the primary hanger line 2 with the transported object 17 suspended. At the tip of the load rail 6, which is installed on both sides of the line and protrudes into the transfer section A of the secondary hanger line 3, there is a guide for guiding a movable rail 31 of the primary hanger device 7, which will be described later. A plate 18 is fixedly installed.

On the other hand, as shown in FIG. 4, in the transfer section B where the empty secondary hanger device 9 is transferred from the primary hanger line 2 to the secondary hanger line 3, a steady guide rail 20 is also provided. Secondary hanger line 3 adjacent to rail 20
A movable rail guide plate 21 is disposed at the tip of the rail 6 protruding into the transfer portion B, and a guide plate 22 for releasing the inner stopper is further fixed to the guide plate.

As shown in FIGS. 5 to 7, the primary hanger device 7 has a frame 23 made of two shaped steels 23a extending in parallel, and the front and rear portions of the frame 23 are provided with a front roller. A moving wheel 24 and a rear rolling wheel 25 are provided.

Both rolling wheels 24 and 25 are guided and supported by the load rail 6 of the primary hanger line 2, and are engaged by a front rolling wheel 24 provided so as to be able to protrude in response to the movement of the corner 26. The protrusion 27 engages the dog 28 of the power chain, thereby causing travel.

In addition, the frame 23 has a dual-type steel 23 at its center.
A pivot shaft 29 is provided so as to bridge a, and a movable rail 31 is swingably suspended from the pivot shaft 29 via a bracket plate 30.

On the forward side of the movable rail 31 in the running direction, there is an inner stopper 3 which is biased by gravity so as to protrude between the rails 31.
2 and an anti pack 33 which is similarly biased are swingably provided, and a pin 35 is fixed to the inner stopper 32 so as to abut against the release guide 22.

Further, on both sides of the middle portion of the movable rail 31, two anti-sway guide rollers 36 are attached at predetermined intervals via brackets 37 on the sides protruding from both sides.

Further, the movable rail 31 is set at a height that matches the load rail 6 of the secondary hanger line 3 at the transfer portion AjB, and the movable rail 31 can guide and support the secondary hanger device 9.

The secondary hanger device 9, like the primary hanger device 7,
Front rolling wheel 39 and rear rolling wheel 4 having engagement protrusions 38
0, and a hanger fitting 41 is suspended by both rolling wheels 39 and 40.

Next, based on the above configuration, the empty secondary hanger device 9 is
Transferred from the primary hanger line 2 to the secondary hanger line 3 in the transfer section B, and further transferred and held the secondary hanger device with the transported object 17 suspended on the primary hanger device 7 in the transfer section A. The operation will be explained for the case.

The primary hanger line 2 is conveyed as shown by the arrow in FIG.
The engaging protrusion 27 of the front rolling wheel 24 is caught by the front rolling wheel 24, and the front rolling wheel 24 is transported to the front of the branching point of the turning section 2a.

The primary hanger device 7, which has been stopped by a stopper device or the like at this position, is transferred by the primary hanger feeder 11 based on the fact that the branch switch 15b has switched the load rail 6 to the transfer section B. Sent to Department B.

Then, as shown in FIG. 4, the primary hanger device 7 is moved along the rail 6, and the guide roller 36 comes into contact with and is guided by the anti-steady guide rail 20, thereby causing the movable rail 31 to swing. is pressed and held in a horizontal state, and the movable rail 31 is further guided by the movable rail guide plate 21 and aligned with the end of the load rail 6 of the secondary hanger line 3.

At the same time, the pin 35 of the inner stopper 32 contacts and is guided by the release guide plate 22, rotates the inner stopper 32 upward against gravity, and frees the forward movement of the secondary hanger device 9. do.

In this state, the secondary hanger feeder 13 is operated,
Transfer the secondary hanger device 9 from the movable rail 31 to the load rail 6 of the secondary hanger line 3, and then transfer it to the transfer section B.
to the power chain line section 5 of the secondary hanger line 3, and the empty secondary hanger device 9 is returned to the secondary hanger line 3 and transported by the power chain in the direction of the arrow.

On the other hand, the primary hanger device 7 from which the secondary hanger device 9 has been removed is returned from the transfer section B to the primary hanger line 2 by the primary hanger feeder 11, and is then returned to the primary hanger line 2 by the branch chain 15.
and connect the primary hanger line 2 with the power chain.
The turning section 2a is transferred in the direction shown by the arrow.

When only the primary hanger device I reaches the straight portion from the turning portion 2a, it is removed from the power chain dock 28 by the stopper device at that position, and then the branch switch 1
5a switches the rail 6 to the transfer side, the primary hanger feeder 10 is operated to move the empty primary hanger device 7 to the transfer section A.

Then, as shown in FIG. 3, as the primary hanger device 7 moves, the rollers 36 come into contact with and are guided by the steadying guide rail 19, and the movable rail 31 is prevented from swinging and held in a horizontal state. is further guided by the guide plate 21 and aligned with the end of the load rail 6 of the secondary hanger line 3.

On the other hand, on the secondary hanger line 3, the secondary hanger device 9 with the conveyed object 17 suspended is sent by the power chain in the direction of the arrow in FIG. There is.

In this state, the secondary hanger device 9 is transferred to the transfer section A by the secondary hanger feeder 12, and further moved completely into the movable rail 31 along the aligned rail 6 and movable rail 31. Ru.

At this time, the front rolling wheel 39 of the secondary hanger device 9 first rotates the anti-back 33 upward by its inclined surface and enters the anti-back 33, and then the anti-back 33 comes out of contact with the rolling wheel 39 and returns. In this state, the tip comes into contact with the inner stopper 32 and stops, and as a result, the front rolling wheel 39 is sandwiched between the inner stopper 32 and the anti-back 33 at the front and rear.
Therefore, the secondary hanger device 9 is firmly fixed and held in a predetermined position on the movable rail 31, ie to the primary hanger device 7.

In this state, the feeder 10 for the primary hanger is activated, and the primary hanger device 7 holding the secondary hanger device 9 with the conveyed object 17 suspended is transferred to the primary hanger line again.
, and attach the front rolling wheel 27 to the power chain dock 28.
hook the engaging protrusion 27 and send it out in the direction shown by the arrow in FIG.

After each operation, the primary hanger device 7 holding the secondary hanger device 9 with the transported object 17 removed is transferred to the transfer section B again.

As explained above, according to the present invention, the primary hanger device 7 has a structure in which the movable rail 31 is swingably suspended, and the secondary hanger device 9 is fixed to the movable rail 31.
The movable rail 31 is aligned with the end of the load rail 6 of the secondary hanger line 3, and the secondary hanger device 9
, so in the transfer parts A and H,
The load of the conveyed object 17 can be supported in the vertical direction by the load rail 6, and it can be easily applied to a trolley conveyor line that conveys heavy objects.

Furthermore, since the load of the transported object 17 is supported by the load rail 6, the noger device 9 can be transferred with only a slight force in the feeding direction, and the load of the feeder io, i1゜12.13, etc. The transfer device is simple and has a reliable structure that reduces accidents such as breakdowns.

Moreover, since the movable rail 31 is swingably suspended from the frame 23, the guide roller 36, the steady guide rails 19, 20, and the movable rail guide plate 18.2
1 etc., even if there are variations in height among the individual primary hanger devices γ, the movable rail 31 can be reliably aligned with the load rail 6 of the secondary hanger line 3,
There is no problem in transferring the secondary hanger device 9.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing a trolley conveyor line to which the present invention is applied, Fig. 2 is a side view thereof, Fig. 3 is a side view showing transfer section A, and Fig. 4 is a side view showing transfer section B. The side view, Figure 5, shows 1 with the secondary hanger device fixed and held.
FIG. 6 is a partially sectional side view showing the secondary hanger device, FIG. 6 is a sectional front view thereof, and FIG. 7 is a perspective view showing the primary hanger device. 1... Trolley conveyor line, 2... Primary hanger line, 3... Secondary hanger line, 6... Load rail, 7... Primary bunker device, 9... Secondary hanger Device 23...Frame, 31...Movable rail, 32, 33...Fixing/holding device (inner stopper anti-back)

Claims (1)

[Claims] A trolley consisting of a primary hanger line that ran and supported the 11th hanger device, a secondary hanger line that ran and supported the secondary hanger device, and a transfer section that transferred the secondary hanger device across both hanger lines. In the conveyor line, the primary hanger device has a movable rail that is swingably supported by a frame, and is configured to be able to fix and hold the secondary hanger device on the movable rail. At the transfer section, align the movable rail with the load rail end of the secondary hanger line, and
A trolley conveyor transfer device configured so that the next hanger device can be transferred across both rails.