JPH0252821A - Device for supplying parts - Google Patents

Abstract

PURPOSE:To make good use of a space by providing two vertical carrying chain conveyors for pallet carrying, which are independently driven, connecting these conveyors with each other into a gate form at the top by means of a free flow conveyor, and thereby providing a pallet with a hook which can be freely engaged with the pins of these conveyors. CONSTITUTION:Fitting parts in a part area are housed in a pallet in a ranking zone, and the pallet P wherein the fitting parts are housed in, is hanged up in order out of a pallet loading section (a) by means of a vertical carrying chain conveyor 1 at the part area side so as to be transshipped onto a free flow conveyor 3 at an upper pallet unloading section (b). Then, after the pallet has been stored at the fitting line side of the free flow conveyor, a vertical carrying chain conveyor 2 at the fitting line side is driven so as to let the pallet stored in the free flow conveyor 3 be hanged up again at a pallet loading section (f) so that it is unloaded onto a line side resting table from an unloading section (g). In this case, the pin of the chain conveyor 2 comes off from the hook of the pallet.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a vertical conveyor chain conveyor and a free conveyor in which outfitting parts of vehicle assembly parts are automatically supplied from a ranking area in a parts area to a line side stand on an outfitting line across a passageway. The present invention relates to a parts supply device using a flow conveyor.

Conventional technology Conventionally, in order to rationally and efficiently assemble a wide variety of vehicle assembly parts on an assembly line, the outfitting line and undercarriage assembly are carried out on the assembly line, as shown in the assembly process flowchart shown in Figure 4. Work was divided into the general assembly line, tester line, and final line processes. Before entering the outfitting line, the painted bodies are stored in one PBS to manage the work order, and the painted bodies suspended with hangers are transported to the outfitting line by an overhead conveyor. was.

After the body was transported to the outfitting line, wiring work, ceiling installation, parts around the instruments were assembled, parts in the engine room such as the brake cylinder were assembled, and refined parts such as glass and molding were assembled. .

When assembling the refined parts, since most of the refined parts P are purchased from parts manufacturers, they are stored in the parts area C across the refining line A and passage B, as shown in Figure 5. was. Therefore, in order to place each auxiliary part P placed on the ordering stand in parts area C onto the outfitting line A, the auxiliary parts P are placed on a trolley and transported across passage B to the line side placing stand E. Refined parts P from stand E
was taken and put on refining line A. Empty boxes made available by using the outfitting parts P in the refining line A were then returned to the parts area C on a trolley.

Problems to be Solved by the Invention However, the conventional means of transporting the outfitting parts P from the parts area C to the line side stand E using a trolley in order to supply them to the outfitting line A requires labor to get the refined parts P on and off the trolley. It required reinforcement and work time, and the problem of improving work efficiency could not be solved. However, even if an attempt was made to solve the problem by simply installing a floor conveyor, it would be inconvenient as it would become an obstacle to the travel of the aisle that must be crossed.

Therefore, the present invention automatically supplies auxiliary parts to the line side stand of the outfitting line without hindering the movement of the aisle, and with work efficiency.Moreover, since the space is effectively used, it can be used in places with limited floor space. Furthermore, it is an object of the present invention to provide a parts supplying device that allows the parts to pass through.

Means for Solving the Problems The parts supply device of the present invention is a device for supplying auxiliary parts to a line side stand of an outfitting line across a passage from a parts area, and includes a rattan parts storage pallet with hooks formed thereon, and Two independently driven vertical conveyor chain conveyors, each consisting of two roller chains guided by a chain rail, lift the pallet by hooks hooked to pallet receiving pins arranged at arbitrary intervals. Consists of a free-flow conveyor that connects in a gate shape at the top.
The vertical conveyor chain conveyor has a roller chain rising pallet loading section where pallets are loaded, and a roller chain falling pallet unloading section where the lifted pallets are lowered onto the floor surface of a free flow conveyor or line side stand. is formed.

Accordingly, the parts conveying device of the present invention, which is composed of two vertical conveying chain conveyors and a free flow conveyor that connects these above, stores the equipment parts in the parts area on pallets in a ranking area, and sequentially transfers them to the parts area. Pallets containing auxiliary parts are lifted from the valet loading section by the side vertical conveyance chain conveyor, and transferred to the free flow conveyor at the upper pallet unloading section. The free-flow conveyor transports the product over the passageway and stores it on the refining line side of the free-flow conveyor. When the vertical conveyance chain conveyor on the outfitting line side is driven, the pallets stored on the free flow conveyor are lifted up again from the valet loading section formed above and lowered towards the floor surface, and the pallets are placed on the line side stand. Loaded and unloaded from the loading and unloading section. Therefore, pallets that have become empty boxes by supplying refined parts to the refining line are lifted from the empty box pallet loading section by a vertical transport chain conveyor on the refining line side and transferred to a free flow conveyor, and then transported vertically to the parts area side. Empty boxes are loaded and unloaded from the pallet loading and unloading section on the floor using a chain conveyor.

As a result of the above, auxiliary parts can be automatically supplied from the parts area to the line side table of the refining line.

Embodiment Below, one embodiment of the present invention will be explained based on the drawings. Fig. 1 shows a vertical conveyor chain conveyor and a free flow conveyor that supply auxiliary parts to a line side table of an outfitting line across a passage from a parts area. 2 shows the structure of a roller chain of a vertical conveyance chain conveyor, and FIG. 3 shows the relationship between the roller chain and a pallet.

In Fig. 1, l is a vertical conveyance chain conveyor on the parts area C side, 2 is a vertical conveyance chain conveyor on the refining area A side, and these two vertical conveyance chain conveyors are connected above. The main part is composed of a flow conveyor, and the free flow conveyor includes a free flow conveyor 3 to which pallets containing refined parts are conveyed, and a free flow conveyor 4 to return empty pallets. With such a configuration, the parts supply device automatically supplies refined parts P from the parts area C to a line-side table placed across the passage B from the refining line. The vertical conveyance chain conveyor and free flow conveyor are assembled to a gate-shaped frame structure 5, and a safety cover such as a mesh is attached to the outer peripheral side surface of the frame structure 5.

More specifically, the two vertical conveyance chain conveyors 1 and 2 form their own drive system, each having a drive motor 6.7, and each receiving a drive command from a control device (not shown). It operates in response to

A roller chain 10, ll, operated by rotation of a sprocket 8.9 by a drive motor 6.7, is a tensioner 12,
A chain rail 14 and 15, which is tensioned by 13 and guides its operation, is connected to the framework frame structure 5 by means of a rail bracket.
will be laid down.

As shown in FIG. 2, the roller chain 10.11 is provided with pallet receiving pins 17 at arbitrary intervals for hooking onto hooks 16 formed on both sides of the pallet P.

The pallet receiving pin 17 is firmly attached to a pin mounting plate 18 which connects a link plate 20 with a chain pin 19 constituting a roller chain 10.11 and a guide link plate 21 of several links. The chain pin 19 is connected through the chain pin 19.

The guide link plate 21 is connected to the frame structure 5.
The roller chain 10.11 slides on the chain rail 14.15 laid on the roller chain 10.11 and effectively guides itself.

In addition, a control device (not shown) is suspended by a motor bracket 22 on a free flow conveyor 3.4 that connects the upper part of the two vertical conveyance chain conveyors 1.2 in a gate-like manner.
Free flow chain 2' with more instructions! A conveyor drive motor 25 is installed to operate the conveyor belts 1 and 24, respectively.

In the parts area side vertical conveyance chain conveyor 1, the outer lower rising part of the roller chain 10 is assumed to be the pallet loading part a of the refined parts storage pallet, and the outer upper falling part is assumed to be the pallet loading/unloading part. The inner upper rising portion of the roller chain 10 is defined as an empty box pallet loading portion d, and the inner lower falling portion is defined as an empty box pallet loading/unloading portion e.

Further, the outer upper rising part of the roller chain 11 in the refining line side vertical conveyance chain conveyor 2 is defined as a pallet loading part r of a refined parts storage pallet, and the outer lower falling part is defined as a pallet loading/unloading part g.

The inner lower rising portion of the roller chain 11 is defined as an empty box pallet loading portion, and the inner upper falling portion is defined as an empty box pallet loading/unloading portion i.

In addition, 26 in the figure is lifted by the vertical conveyance chain conveyor l on the parts area side, and one by one of the refined parts storage pallets P that have been conveyed by the free flow conveyor 3 and stored on the refining line side are sequentially moved to the vertical conveyor chain l on the refining line side This is an intermittent feeding device that intermittently feeds empty box pallets so that they can be hoisted onto the conveyor chain conveyor 3. Reference numeral 27 is an intermittent feeding device that intermittently feeds empty box pallets stored on the parts area side.

Furthermore, as shown in FIG. 3, 28 in the figure indicates a support bracket 29 or the like is attached to the frame structure 5 in order to prevent the pallet P from shaking when the pallet P is raised and lowered on the vertical conveyor chain conveyor 1.2. This is a guide bar installed.

With the configuration of the parts supply device as described above, first, the refined parts P placed on the order place table in the parts area C are stored on the pallet P, and the parts area side vertical conveyance chain conveyor 1 is driven by button operation. Connect the hooks 16 on both sides of the pallet to the roller chain 1 from the pallet loading section a.
0 pallet receiving pin 17 he y! >Transport to the pallet loading/unloading section by hooking and lifting. Already at the pallet loading/unloading section, the pallet P is placed on the free flow conveyor 3 by the fall of the roller chain IO, and the hooks 16 on both sides are removed from the pallet receiving pins 17, so that the pallet P is not loaded onto the free flow conveyor 3. It will be transferred. A refined parts storage pallet P is placed thereon by a free flow conveyor 3 whose drive switch is turned on together with a vertical transport chain conveyor l on the parts area side.
is transported to the outfitting line and stored. When the number of pallets P on the free flow conveyor 3 reaches the maximum number that can be stored, the drive of the vertical conveyance chain conveyor 1 on the parts area side is stopped by a limit switch or the like built in the free flow conveyor 3.

Next, by driving the vertical conveyor chain conveyor 2 on the refining line side by button operation, the pallet P containing the refining parts stored on the free flow conveyor 3 is moved to the pallet loading section f where the roller chain 11 is raised, on both sides of the pallet. The pallet receiving bins 17 are hooked onto the hooks 16 of the pallet receiving bins 17, and the pallet receiving bins 17 are sequentially lifted up and transported to the pallet loading/unloading section g. When the roller chain 11 falls, the pallet receiving pins 17 attached to the roller chain 11 are detached from the hooks 16 on both sides of the pallet, and the pallet is transported to the line side stand of the outfitting line, and the outfitting parts are transported without any hindrance to the passage. You can.

Furthermore, the pallets P, which are empty after the refined parts are used in the refining line, are transferred to the vertical conveyor chain conveyor 2 on the outfitting line side.
The empty boxes are lifted from the empty box pallet loading section and transferred to the free flow conveyor 4, transported to the parts area, and stored. When the number of stored empty box pallets reaches a certain number or more, the free flow conveyor 4 is stopped by its built-in limit switch, and the vertical conveyance chain conveyor 2 on the outfitting line side is also stopped. The empty box pallets stored on the free flow conveyor 4 are sequentially transported from the empty box pallet loading section d to the empty box pallet unloading section e by the parts area side vertical conveyance chain conveyor l, and are returned to the parts area. Ru.

In addition, when supplying refined parts such as harnesses to the refining line, a free flow conveyor 3 is used to provide a material for rationally refining the parts that are restricted by the parts manufacturer.
A heater is installed above, and by untying the harness, storing it on a pallet, and transporting it, the heater removes the binding while it is stored on the free flow conveyor 3, making it easy to install on the refining line. You can do things like make it .

As a result of the effects of the invention, the present invention improves the storage of pallets by configuring a parts supply device consisting of two vertical conveyance chain conveyors with a hook and pallet receiving bin structure that allow pallets to be separated from the roller chain, and a free flow conveyor. This creates a space where refined parts and empty box pallets can be stored, making effective use of space even in narrow floor spaces.Furthermore, refining parts can be stored at all times without any hindrance to aisle movement. Can be automatically supplied to the refining line.

[Brief explanation of the drawing]

FIG. 1 is a structural diagram of a parts supply device of the present invention, and FIG. 2 is a structural diagram of a roller chain of a vertical conveyance chain conveyor, in which (A) is a structural diagram of the relationship with a pallet, and (B) is
It is a related structural diagram with a chain rail. Figure 3 shows the first
It is a structural diagram of the relationship between the component supply device and the pallet, taken along the line XX in the figure. FIG. 4 is a flowchart of a general passenger car assembly process. FIG. 5 is a diagram illustrating the state of conventional refined parts supply. 1.2... Vertical conveyance chain conveyor, 3.4... Free flow conveyor, 5... Frame frame structure, 6.7... Drive motor, 8.9... Sprocket, 10 11... Roller chain, 12 .13...Tensioner, 14.1
5... Chain rail, 16... Hook, 17... Pallet receiving bin, 18... Bin mounting plate, 19... Chain bin, 20... Link plate, 21... Guide link plate, 22... Motor bracket, 23.2
4. Free flow chain, 25. Conveyor drive motor, 26. 27. Intermittent feeder, 28. Guide bar, 29. Support bracket, A. Refining line, B.
-Aisle, C...Parts area, D...Dolly, E...Line side stand, P...Pallet, a, r...Pallet loading section, b, g...Pallet loading/unloading section, d. h・・Empty box pallet loading section, (1 other person) Figure (A) Figure (B) Figure 1

Claims (1)

[Claims] In a device that supplies outfitting parts to a line-side stand on an outfitting line across a passage from a parts area, a pallet for storing outfitting parts is formed with hooks, and the hooks are hooked onto pallet receiving pins arranged at arbitrary intervals. The system consists of two independently driven vertical conveyor chain conveyors made up of two roller chains guided by chain rails that lift pallets, and a free flow conveyor that connects them in a gate shape above. The chain conveyor has a pallet loading section where pallets are loaded with a roller chain upright, and a pallet unloading section where the lifted pallet is lowered onto a floor surface such as a free flow conveyor or line side platform. A parts supply device characterized by: