JPH042126Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a conveyance device that carries articles by placing them on a front truck and a rear truck that are connected by a connecting member, and is particularly applicable to processing conditions for objects to be processed. The present invention relates to a conveyance device having a mechanism that can change the interval between carts to a suitable one.

(Prior Art) As a conventional conveying device, for example, one shown in FIG. 4 is known.

In this conventional conveyance device, a front truck 02 and a rear truck 03 running on a traveling rail 01 are connected to a connecting rod 0.
4, and the front truck 02 is engaged to be pulled by the chain conveyor 05,
It was used to transport car bumpers during painting.

Therefore, when transporting, a pair of front and rear bumper parts are placed on both carts 02 and 03, respectively, and the front cart 02 is pulled by the chain conveyor 05 for transport.

(Problems to be Solved by the Invention) Incidentally, the transportation line for bumper parts as described above includes a painting process, an oven baking process, and a temporary storage area. The distance between the front truck and the rear truck (the length of the connecting rod) is set to the distance required during the painting process, which requires space between the two trucks.

However, in such conventional conveying devices, the distance between the front truck and the rear truck was always constant, so even in the oven baking process or in the storage area where the distance between the two trucks is not required, the distance between the front truck and the rear truck is always constant. The problem was that the intervals between the carts were kept wide, which took up a lot of unnecessary space, resulting in poor space utilization efficiency.

(Means for solving the problem) The present invention was made with the purpose of solving the above-mentioned problems. A front truck and a rear truck equipped with a support mechanism are placed in a movable manner, and the rear end of a front link member connected to the front truck is bendably connected to the front end of a rear link member connected to the rear truck. , a bending link is formed, and a guide roller is provided at the bending part of the bending link to roll in a guide rail provided in parallel with the running rail, and the guide rail is arranged close to and parallel to the running rail. The front bogie has a wide-spaced area, a narrow-spaced area that is spaced apart from the traveling rail and arranged in parallel with the wide-spaced area, and an inclined connection part that connects these wide-spaced areas and the narrow-spaced area. Alternatively, a configuration is adopted in which the rear truck is provided with a towed portion that is towed along the traveling rail by a drive device.

Note that the above-mentioned rear truck refers to a truck located behind the front truck in the transport direction, and includes not only one truck but also a plurality of trucks located behind the front truck. .

(Function) Therefore, in the conveying device of the present invention, by employing the above-described means, when the guide roller rolls in the wide-spaced area of the guide rail, both the front and rear connecting portions of the bending link and the guide roller are connected. By arranging it almost in a straight line parallel to the running link, the bending link becomes almost straight, the distance between the front bogie and the rear bogie becomes wide, and the guide roller moves parallel to the running rail. This maintains the wide spacing.

In addition, when the guide roller rolls in a narrow interval area of the guide rail, the guide roller is placed away from the straight line connecting the front and rear connecting parts, so that the bending link is bent at the bending part, and the front bogie The distance between the rear truck and the rear truck is narrow, and furthermore,
The narrow interval state is maintained by the guide rollers moving in parallel.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In describing this embodiment, a conveying device used for painting bumper parts for automobiles will be taken as an example.

First, the configuration of the embodiment shown in FIGS. 1 to 3 will be explained.

The conveying device according to an embodiment of the present invention includes a traveling rail 1
0, front truck 20, rear truck 30, bending link 40,
First and second chain conveyors 5 as driving devices
0,60, guide rail 70, guide roller 8
0, a wide interval area 90, and a narrow interval area 100.

The running rail 10 guides the running of the front bogie 20 and the rear bogie 30, and is disposed throughout the bumper painting line. Furthermore, the first
Figures 1 to 3 show the arrangement between the painting room A and the oven B.

The traveling rail 10 has a shape in which two rails having a U-shaped cross section face each other with a gap between them.

The front bogie 20 and the rear bogie 30 are for mounting a pair of bumper parts a and a provided at the front and rear of the automobile, and both bogies 20 and 30 are formed so as to be able to run on the traveling rails 10. and are connected by the bending link 40.

Note that the front truck 20, the rear truck 30, and the bending link 40 form a truck main body 110.

The front truck 20 is formed so as to be able to be pulled and engaged with a first chain conveyor 50 disposed on the painting room A side and a second chain conveyor 60 disposed on the oven B side. As shown in FIG. 1, this front truck 20 includes a support member 21 that supports the bumper part a, and a front bracket 22 that is provided at the lower end of the support member 21 and inserted into the running rail 10. and four rollers 23 that are pivotally supported by the front bracket 22 and roll within the running rail 10, and the front bracket 22 can run within the running rail 10 by the rollers 23. . The front bracket 22 is provided with a latch 24 which engages with a dog provided on the chain conveyor.

The rear truck 30 is connected to the front truck 20 by the bending link 40, and the rear truck 30 is connected to the front truck 20 by the bending link 40.
As shown in FIG. 1, a support member 31 that supports the bumper part a, a rear bracket 32 provided at the lower end of the support member 31 and inserted into the running rail 10, and a rear bracket 32 that supports the bumper part a, The rear bracket 32 is provided with four rollers 33 that are pivotally supported by the rollers 32 and roll within the running rail 10, and the rollers 33 enable the rear bracket 32 to run within the running rail 10.

The bending link 40, as shown in FIG.
A front link member 42 is connected to the lower end of the support member 21 of the front truck 20 so as to be rotatable in the vertical direction by a front pin 41 which is a front connecting portion, and a front link member 42 is connected to the lower end of the support member 31 of the rear truck 30 so as to be rotatable in the vertical direction. A rear link member 44 connected by a rear pin 43 which is a rear connecting portion so as to be rotatable in the direction, and both link members 42, 4
4 connected by a link shaft 45 and a bendable bending part 46.

The first chain conveyor 50 is engaged with the latch 24 of the front truck 20, and the first chain conveyor 50 is engaged with the truck main body 110.
The first chain conveyor 50 transports the bumper parts a and a from the painting room A toward the oven room B by pulling the It is arranged along the lower part of the first power rail 51.

Moreover, this first chain conveyor 50 has a 3.0
The first chain conveyor 50 has three dogs 52 of the first chain conveyor that can be engaged with the latch 24.
They are provided every m intervals.

The dog 52 is inserted into the first power rail 51 , and has four rollers 52 that are pivotally supported and rolls inside the first power rail 51 . It is now drivable.

The second chain conveyor 60 is adjacent to the first chain conveyor 50 and pulls the front truck 20 to move the truck main body 110 to the oven chamber B side. As shown in FIG. 3, it is disposed along the lower part of the second power rail 61 disposed below the traveling rail 10.

Moreover, this second chain conveyor 60 has a 1.0
The second chain conveyor 60 has a dog 62 of the second chain conveyor that can be engaged with the latch 24.
They are provided at intervals of 1.0m.

The dog 62 is inserted into the second power rail 61 , and four rollers 63 that roll within the second power rail 61 are pivotally supported. It is now drivable.

In the above embodiment, the first and second power rails 51 and 61 are provided and the dogs 52 and 62 are inserted through them, but if the chain conveyor is guided by means such as guide rails, the power If you omit the rail, you can do this.

The guide rail 70 guides a guide roller 80, and as shown in FIGS. 1 and 2, the guide roller 70
0, and is arranged along the traveling rail 10, and the wide-spaced area 90 and the narrow-spaced area 1
00 and an inclined connecting portion 71 connecting both spacing sections 90, 100.

The guide roller 80 rolls within the guide rail 70 and is connected to the link shaft 4 of the bending portion 46.
It is pivoted on 5.

As shown in FIGS. 1 and 2, the widely spaced areas 90 of the guide rail 70
It is arranged close to and in parallel with 0, and is also arranged on the painting room A side.

As shown in FIGS. 1 and 2, the narrow interval area 100 is spaced upward from and parallel to the traveling rail 10 compared to the wide interval area 90, and is disposed on the oven chamber B side. has been done.

In addition, 120 in the figure is the first chain conveyor 50.
and the second chain conveyor 60, and is arranged between the painting room A side and the oven room B side. Pusher 1 sent from 50 to the second chain conveyor 60 side
21 are provided.

Next, the operation of the embodiment will be explained.

In the painting line for the bumper parts a, a, the bumper parts a, a are placed on a truck body 110, and the truck body 110 is pulled by the first chain conveyor 50.

The bumper parts a and a are then conveyed to the painting room A by the first chain conveyor 50 and spray painted.

In this case, as shown by the solid line in Figure 2,
As the guide roller 80 rolls in the wide interval area 90 of the guide rail 70, the link shaft 45 of the bending link 40, the front pin 41, and the rear pin 43 are arranged on the same straight line, and the bending link 40 is straightened. state, and the distance between the front truck 20 and the rear truck 30 is maintained at the widest distance.

As a result, bumper parts a and a necessary for painting
You can secure a working space between the two.

In addition, the first chain conveyor 50 has a dog 5.
2 are provided at intervals of 3 m, the intervals between the trolley bodies 110 are also wide.

After the trolley body 110 has passed through the painting room A, the guide roller 80 rolls along the inclined connection part 71 and moves upward, and the front link member 42 moves backward around the front pin 41. As the side link member 44 rotates upward around the rear pin 43 and the bending link 40 is gradually bent, the distance between the front truck 20 and the rear truck 30 gradually becomes narrower.

Then, as shown by the imaginary line in FIG.
The upward movement of the front truck 20 and the rear truck 30 is stopped, and the narrow gap between the front truck 20 and the rear truck 30 is maintained.

Thereafter, the trolley body 110 is towed by the first chain conveyor 50 to the transfer section 120 while maintaining a narrow interval, and when it reaches the transfer section 120, the latch 22 is disengaged from the dog 52 and the towing by the first chain conveyor 50 ends. .

Next, the truck main body 110 is sent to the second chain conveyor 60 by the pusher 121 and is attached to the latch 22.
is engaged with the dog 62 and pulled by the second chain conveyor 60.

Then, the bumper part a is transported by the second chain conveyor 60 to the oven chamber B side by being pulled by the truck body 110, and the painted surface is dried in the oven chamber B.

In addition, the first chain conveyor 5 of the trolley body 110
When transferring from 0 to the second chain conveyor 60, the speed changes from 3.0 m/min to 1.0 m/min.
min, which is 1/3, so the trolley body 11
The spacing between the 0's is also 1/3, which narrows the spacing (the spacing between each dog 62 is also 1/3 of that of each dog 52).

By the way, the distance between the bogie bodies 110 is such that the distance between the front and rear bogies 2 in the narrow interval area 100 of the guide rail 70 is
0 and 30 are narrowed, so the size of the gap narrowed when transferring from the first chain conveyor 50 to the second chain conveyor 60 is larger than in the conventional device. Therefore, the speed of the second chain conveyor 60 can be lower than that of the conventional device in which the distance between the front and rear carts remains unchanged. Therefore, in order to make the time to pass through oven chamber B the same,
The length can be shortened.

Therefore, the effect of reducing the installation cost and energy consumption of the oven chamber can be obtained.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, the number of rear trucks is not limited to one, and a plurality of rear trucks may be provided.

Further, the drive device is not limited to a chain conveyor, but may be a belt conveyor or the like.

(Effects of the invention) As explained above, in the conveying device of the invention,
The front bogie and the rear bogie are connected by a bending link, and the guide rail that guides the guide roller provided on the bending link is provided with a wide interval area and a narrow interval area.
By widening or narrowing the gap between the front truck and the rear truck,
By changing the distance between the objects to be processed, it is possible to make effective use of space, and it is possible to maintain the distance reliably.

Due to this effect, when storing the same number of items as before, it is possible to shorten the traveling rails and conveyors.

In addition to the above-mentioned effects, in the embodiment,
As the speed of the trolley passing through the oven chamber has become slower, the overall length of the oven chamber has become shorter.
The cost and space used when installing the oven can be reduced, and the energy consumption when using the oven can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conveyance device according to an embodiment of the present invention, FIG. 2 is a side view showing the operation of the embodiment device, FIG. 3 is a plan view showing the main parts of the embodiment device, and FIG. It is a perspective view showing a conventional conveyance device. 10... Traveling rail, 20... Front bogie, 30...
...Rear truck, 40...Bending link, 41...Front side pin (front connection part), 43...Rear side pin (rear connection part),
46...Bending portion, 50, 60...First and second chain converters (drive devices), 70...Guide rail, 80...Guide roller, 90...Wide interval area, 100...Narrow interval area.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A front truck and a rear truck equipped with a workpiece support mechanism are movably mounted on a traveling rail, and a rear end of a front link member connected to the front truck;
The front end of the rear link member connected to the rear truck is bendably connected to form a bending link, and the bending link rolls within a guide rail provided in parallel with the traveling rail at the bending part of the bending link. A guide roller is provided, and the guide rail includes a wide-spaced area that is arranged in parallel close to the running rail, a narrow-spaced area that is spaced apart from the running rail and arranged in parallel with the wide-spaced area, and these wide-spaced areas. and an inclined connection part connecting the narrow space area, and the front bogie or the rear bogie is provided with a towed part that is towed along the traveling rail by a drive device. Conveyance device. 2. The conveying device according to claim 1, wherein the driving speed of the truck driving device in the wide spacing area of the guide rail is higher than the driving speed of the truck driving device in the narrow spacing area. 3. The conveying device according to claim 1 or 2 of the utility model registration, which is equipped with a pusher for moving the cart from the wide-spaced area to the narrow-spaced area of the guide rail.