JPH1071356A - Coating equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a space and equipment for storing works to enhance the utilizing efficiency of the space and to reduce equipment cost at the same time and to further reduce the running cost of a drying furnace. SOLUTION: A work W seat from a previous process is hang to each of the hanger H of an overhead conveyor 2 at an hanging position P1 to be pretreated and coated and this work is transferred to the truck T of a floor conveyor 9 at a transfer position P2 to be dried and the dried work W is again transferred to the overhead conveyor 2 at a re-transfer position and detached from each hanger H at a unloading position P4 to be fed to a next process. When the feed lines between respective processes are stopped, the pretreatment, coating and drying of all of works W during transportation by the respective conveyors 2, 9 are completed and, thereafter, a required number of preceding works W are re-transferred to the hangers H transferred to the circulating track 3 of the overhead conveyor 2 to be stored on a first storage track 13 and the succeeding words W are transferred to preparatory hangers Hs to be stored on a second storage track 14.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment and a coating performed on a work such as an automobile body while conveying the work on an overhead conveyor, and then transferring the work to a floor conveyor for drying. A coating facility adapted to

[0002]

2. Description of the Related Art FIGS. 3 and 4 show the layout of a conventional coating equipment for performing electrodeposition coating, its running state and storage state, and along a overhead conveyor 42 formed on a circulation track 41, a preceding process. A loading device 43 for loading the work W conveyed from the hanger H at a predetermined loading position P ₁ , and a surface of the workpiece W loaded by the loading device 43 before cleaning, degreasing, chemical conversion coating, etc. A pretreatment device 44 for performing the treatment, an electrodeposition coating device 45 for forming an electrodeposition coating film on the surface of the work W which has been subjected to the pretreatment by the pretreatment device 44, and the electrodeposition coating completed by the electrodeposition coating device 45 consisting No換device 48 to change on a cart T of the floor conveyor 47 traveling on the workpiece W within a predetermined mounting repositioned P ₂ in removed from the hanger H drying furnace 46 are arranged in this order.

[0003] The floor conveyor 47, the trolley T was conversion placing the workpiece W before described repositioned P ₂ is transferred into the drying furnace 46, the dried finished workpiece W is conveyed to the next step while on a cart T , circulation track 47a for returning the truck T emptied in the next step to again before described repositioned P ₂ is formed.
In addition, from the next process of the floor conveyor 47, the transfer position P ₂
In the circulation track 47a, a spare truck storage track 47b that stores the trucks T for the number of works W that are being conveyed by the overhead conveyor 42 and not yet conveyed to the drying furnace 46 in an empty state branches off. While being formed, all the workpieces W conveyed by the overhead conveyor 42 and the floor conveyor 47 are stored in a circulating path 47a from the outlet of the drying furnace 46 to the next step while being placed on the carriage T. The bogie storage track 47c is branched and formed.

The truck storage track 47c is
When the conveyance of the work W from the previous process and the conveyance to the next process are stopped, the work W being conveyed by the floor conveyor 47 is finished drying, is stored on the carriage T, and is stored on the overhead conveyor. After pre-treating the workpiece W conveyed at 42, terminating the electrodeposition coating, replacing the carriage T stored in the spare carriage storage track 47b with the carriage T and sequentially carrying it to the drying furnace 46 to finish drying, The storage is carried on the carriage T.

The overhead conveyor 42 includes:
When the conveyance of the work W from the previous process is stopped, the work W is mounted on the carriage T of the floor conveyor 47 and the empty hanger storage track 41a for storing the empty hanger H is previously described. is formed from a modified position P ₂ branches from the circulation track 41 back to the arrival position P _1,
Corrosion caused by leaving the empty hanger H in the pretreatment device 44 or the electrodeposition device 45 is prevented, and when the transfer of the work W from the previous process is started, the empty hanger H is moved to the loading position P.
_It can be sent to ₁ immediately.

According to this, while the transfer line between the respective processes is operating, each hanger H is circulated and run on the overhead conveyor 42, and the work W arrived by the loading device 43 is conveyed while being forwarded. After the pre-processing is performed by the processing device 44 and the electrodeposition coating is performed by the electrodeposition coating device 45, the hangers H that have been emptied by being mounted on the carriage T of the work W floor conveyor 47 by the transfer device 48 are returned to the loading position. is returned to P _1,
The subsequent work W is received and processed continuously. Then, the floor conveyor 47, the empty bogie T returning the circulation track 47a from the next step, or spare truck T which had been storage in pre truck storage track 47b is conveyed to Nokae position P _2, No換The work W reloaded on the carriage T by the device 48 is carried into the drying furnace 46, and is conveyed to the next process as it is after drying is completed.

Here, when the work of the day is completed, the transfer line between each process is stopped, and the transfer of the work W from the previous process and the transfer to the next process are stopped, the work W is in the drying furnace 46. The work W remains on the trolley T and the trolley storage track 4
The work W stored in the pretreatment device 44 and the electrodeposition coating device 45 is stored in the pretreatment device 44 and the electrodeposition coating device 45, and the preprocessing and the electrodeposition coating are completed. After being dried in the drying furnace 46, the carriage storage track 47 is kept in a state of being placed on the spare carriage T.
The hanger H which is stored in the storage c and becomes empty after the work W is mounted on the carriage T is stored in the empty hanger storage track 41a. Then, the next morning, when the transfer of the work W from the previous process and the transfer to the next process are started, the empty hangers H stored in the empty hanger storage track 41a.
Is sent out onto the circulation track 41 of the overhead conveyor 42 and waits at the loading position P ₁ , the work W conveyed from the previous process is sequentially loaded to start the painting operation, and at the same time, the work W is stored in the carriage storage track 47 c. successively conveying the workpiece W to a truck T by the next step, to the beginning of the work W to be conveyed by an overhead conveyor 42 arrives at Nokae position P _2, pre truck storage empty truck T that has been returned from the next step It is sent to the track 47b and stored sequentially.

According to such a coating equipment, even if the conveyance of the work W from the previous process and the conveyance to the next process are stopped,
With respect to all the works W conveyed by the overhead conveyor 42 and the floor conveyor 47, the coating can be completed and the coating film can be stored in a dried state. Or during electrodeposition coating or at the end of painting,
Further, the coating quality is maintained constant without being left unfinished during drying.

[0009]

However, in this case, the workpiece W is pre-treated while being transported, electrodeposition-coated,
A space for storing an empty carriage T that is not used at the time of running for drying, and the work W is conveyed by the overhead conveyor 42 and the floor conveyor 47 when the conveyance from the previous process and the conveyance to the next process are stopped. There is a problem that a space for storing all the works W on the cart T and a space for storing the empty hangers H must be separately provided in a limited factory site. For example, 49 workpieces W are carried into the pretreatment device 44 and the electrodeposition coating device 45, and 2
Assuming that four works W are carried in and the storage pitch of the hanger H and the bogie T is about 7 m, the total length of the empty hanger storage track 42a is 49 × 7 ≒ 350 m, and the total length of the spare bogie storage track 47b is 49 × 7 ≒ 350 m. The total length of the truck storage track 47c is (49 + 24) × 7 ≒ 52.
0m, and all storage tracks 42a, 47b,
The total length of 47c reaches 1200-1300m. Further, since all the works W conveyed by the overhead conveyor 42 and the floor conveyor 47 are stored in a state of being mounted on the cart T, the cart T for conveying the work W in the drying furnace 46; At least 49 + 24 = 73 trolleys T are required for the spare trolleys T on which the works W are transported in the pretreatment device 44 and the electrodeposition coating device 45. As described above, since a large number of carts T for storing all the works W and a large storage space are required, there has been a problem that equipment costs are increased.

Further, when transporting the work W to the next step, these carts T take out the heat of the drying furnace 46, cool down to room temperature after transferring the work W to the next step, and return. When it is carried into the drying furnace 46, it is heated again, so that a large amount of heat in the furnace is taken away.
However, there is a problem that a large amount of heat is consumed and the running cost increases.

Therefore, the present invention reduces the storage space and equipment to improve the space utilization efficiency when storing the same number of works, reduces the equipment cost, and further reduces the heat consumption of the drying furnace. It is a technical task to reduce running costs by saving energy.

[0012]

In order to solve this problem, the present invention relates to an overhead conveyor formed on a circulating orbit, which moves a workpiece conveyed from a previous process at a predetermined loading position to the overhead conveyor. A loading device that arrives at the hanger, a pretreatment device that pretreats the surface of the workpiece that has arrived at the loading device, and a workpiece that has been pretreated by the pretreatment device is immersed in paint to paint the surface. A coating device to be adhered and an elevator device for lowering the work to which the paint is applied by the coating device from a hanger of an overhead conveyor at a predetermined transfer position and mounting the work on a truck of a floor conveyor running in a drying furnace are sequentially arranged. After pre-processing and painting while transporting the work on an overhead conveyor, the work is placed on a truck on a floor conveyor. In the coating equipment configured to be conveyed to the next step after the drying is completed, the floor conveyor travels in the drying furnace, passes from the drying furnace outlet to the drying furnace inlet through the replacement position described above. Along the return trajectory, along the trajectory of the floor conveyor from the drying furnace outlet to the transfer position, the workpieces that have been dried in the drying furnace are again overhead from the truck of the floor conveyor at a predetermined return position. An elevator device for returning the work to the hanger of the conveyor is disposed, and the work returned to the hanger at the return position is returned to the predetermined unloading position along the circulation path of the overhead conveyor returning from the return position to the loading position. The unloading device that moves down from the overhead conveyor and transfers it to the conveyor to be transferred to the next process is arranged in order. A loop-shaped first storage track for storing a predetermined number of hangers transferred on a conveyor circulating track while suspending the hangers on the hanger has a draw-in side and a send-out side where the overhead conveyor is placed back and forth. A state in which a predetermined number of spare hangers of a truck traveling on the circulation track of the floor conveyor is provided, and the work is suspended from the spare hanger. A second storage track in the form of a loop for storing at the same time branches the drawing side from the circulation track between the return position of the overhead conveyor and the unloading position, and sets the delivery side of the overhead conveyor to the return position of the overhead conveyor. When the work is laid in such a way that it joins the circulating path before the work, and loading of the work from the previous process and unloading to the next process are stopped. After finishing the pretreatment, painting and drying for all the works being conveyed on the overhead conveyor and the floor conveyor, the required number of works on the head side are put on the hanger at the return position described above, and After the remaining work is placed back on the spare hanger and stored in the second storage track while being suspended on the spare hanger, the work is stored on the first storage track while suspended on the spare hanger. It is characterized by being made to.

According to the present invention, after the work conveyed from the preceding process is loaded on the hanger of the overhead conveyor at the loading position, the work surface is pre-processed by the pre-processing device while being conveyed by the overhead conveyor. The coating film is formed on the work surface by the coating device, and then, is replaced on the carriage of the floor conveyor at the transfer position, and is carried into the drying furnace and dried. It is put back on the hanger, unloaded from the hanger at the unloading position, and transported to the next process. At this time, the floor conveyor is formed in a circulation path that travels through the drying furnace, returns from the drying furnace outlet to the loading position, the reloading position, and returns to the drying furnace entrance. And is immediately carried into the drying oven through the loading / unloading position and the loading / unloading position, so that it is circulated through the drying oven again before being cooled to room temperature. Therefore, the amount of heat in the drying furnace taken away by the truck is small, the running cost is reduced, and the total length of the floor conveyor is short and the number of trucks is reduced, so that the equipment cost can be reduced.

Further, at the time when the work of the day is completed and the transfer line between the respective processes is stopped, all the works being conveyed by the respective conveyors are subjected to the prerequisite processing, coating, and drying. A number of works are returned to the hanger to be transferred along the circulation path of the overhead conveyor and stored in the first storage track while being suspended on the hanger, and the subsequent works are returned to the spare hanger and returned to the hanger. While being suspended in the second storage track. In this case, the first and second storage trajectories only need to secure a length capable of storing all the work being conveyed by each conveyor when the transfer line between the processes is stopped, and the hanger is also used. In addition to being transported along the overhead conveyor's circulation track, it is sufficient to prepare spare hangers for a predetermined number of trucks traveling on the floor conveyor's circulation track, and a space for storing empty trucks and all work were loaded. Since there is no space to store the trolley in the state, and the number of trolleys is drastically reduced, the use efficiency of the space can be dramatically improved,
Equipment costs required for storage are reduced by reducing the equipment required for storage.

[0015] Then, the next morning, when the transfer line between the processes is operated, the hangers stored in the first storage track are sequentially sent out from the sending side to the circulation track of the overhead conveyor and transferred to the unloading position. At the same time, the work is unloaded from the overhead conveyor hanger by the unloading device and replaced on the conveyor to be transported to the next process.At the same time, the hanger stored in the second storage track is moved from its sending side to the overhead conveyor circulation track. The hangers are sequentially sent out and transferred to the unloading position either directly or via the first storage track. Hanger which emptied down the workpieces and unloading position is transferred to the arrival position, at the arrival position P _1, before the work that has been transported sequentially arrival from step, pretreatment, starting the coating operation.
Then, when the hanger arrives at the transfer position, the work is mounted on the truck of the floor conveyor, and the empty hangers are sequentially sent to the second storage track, and empty hangers for the number of spare hangers are used as spare hangers. After storage, subsequent hangers are transferred to the truck on the floor conveyor at the transfer position, and then the work carried out of the drying furnace at the transfer position is returned, transferred to the unloading position, and loaded again. At the position, the work conveyed from the previous process arrives.

[0016]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a plan view showing the layout of a coating facility according to the present invention and its running state,
FIG. 2 is a plan view showing the storage state.

In the coating equipment 1 according to the present embodiment, an overhead conveyor 2 for suspending and transporting a work W on a floor with a hanger H is formed on a predetermined circulating track 3, and a pre-process is performed along the overhead conveyor 2. A loading device 4 for loading the work W conveyed from the hanger H at the loading position P ₁ ,
A pre-processing device 5 for performing a pre-treatment such as a cleaning process, a degreasing process, or a chemical conversion coating process on the surface of the workpiece W received by the loading device 4; electrodeposition and electrodeposition coating device 6 to form a coating film, electrodeposition coating device elevator device 7 down from the overhead conveyor 2 downstairs in Nokae position P ₂ a workpiece W which electrodeposition coating is completed by 6 is arranged I have.

Downstairs, a floor conveyor 9 for moving a carriage T on which a work W is loaded at a predetermined interval travels in the drying furnace 8 and turns around the elevator device 7 from a drying furnace outlet 8out to a drying furnace inlet 8in. It is formed on the circulation track 10 back to the elevator unit 7, hanger of a front side Nokae position P ₂ and turned in the electrodeposition coating device 6 in electrodeposition coating finished upstairs workpiece W overhead conveyor 2 H
Place on a cart T of the floor conveyor 9 laid downstairs drop off from the lift the workpiece W and dry ends in the drying furnace 8 becomes the back side of the mounting flashing position P ₃ from the truck T downstairs floors conveyor 9 It is configured to be raised and put back on the hanger H of the overhead conveyor 2 on the floor.

Further, circulation track 3 of the overhead conveyor 2 is formed so as to return the description repositioned P ₂ and the mounting barbs position P ₃ before around the periphery of the elevator apparatus 7 as arrival position P _1, Between the return position P ₃ and the arrival position P ₁ , the work W returned on the hanger H at the return position P ₃ is lowered from the overhead conveyor 2 at a predetermined unload position P ₄ and transferred to the next process. Conveyor 11
Are sequentially arranged.

The work W of a predetermined number (for example, 49) of hangers H transferred on the circulating track 3 of the overhead conveyor 2 is formed to have a length capable of being stored while being hung on the hangers H. first storage track 13 looped is, so as to branch and merge in the circulation track 3 between the pull side 13a and the delivery side 13b of the mounting flashing position P ₃ of the overhead conveyor 2 and Datsuni position P ₄ Has been laid. The cart T of the floor conveyor 9
(For example, 24 units) of spare hangers Hs, and the loop-shaped second storage track 14 formed to have a length capable of storing the work W suspended on the spare hangers Hs is drawn in. the side 14a between the mounting flashing position P ₃ of the overhead conveyor 2 and Datsuni position P ₄ along with branches from the circulation track 3, the the delivery side 14b in front of the mounting barbs position P ₂ the overhead conveyor 2 It is laid so as to join the circulation track 3.

The above is an example of the configuration of the present invention, and its operation will now be described. For example, the number of hangers H transferred on the circulation track 3 of the overhead conveyor 2 is 4
There will be described a case where the number of the vehicles T is 9 and the number of the vehicles T traveling on the circulation track 10 of the floor conveyor 9 is 24 and the storage pitch is about 7 m. First, the transfer line between each process of the factory is operated, and while the work W is transferred from the previous process and transferred to the next process, the arrival position P
_While the work W loaded on the hanger H of the overhead conveyor 2 is transported upstairs in 1, the surface of the work W is pre-treated by the pre-processing device 5, and the surface of the work W is A film is formed. Next, the transfer position P ₂
, The elevator device 7 lowers the hangers H of the overhead conveyor 2, replaces the trolley T on the floor conveyor 9 below the floor, is carried into the drying furnace 8, dried, and then unloaded from the drying furnace 8. by which the workpiece W by the elevator unit 7 in the mounting flashing position P ₃ is lifted up again after said returned placed on hanger H overhead conveyor 2, and unloading position P ₄ has been and unloading device transferred to 12
Is transferred from the overhead conveyor 2 to the conveyor 11 to be transported to the next process.

At this time, the floor conveyor 9 is
The carriage T is formed on a circulation track 10 which travels through the inside of the drying furnace 8 and immediately returns to the drying furnace inlet 8in from the drying furnace outlet 8out and immediately returns to the drying furnace inlet 8in. Is carried out of the drying furnace 8 only for performing the transfer / reloading of the carriage, and the carriage T is not moved to the next step, and the circulation track 10 laid outside the drying furnace 8 can be formed short. Therefore, before the carriage T is cooled down to room temperature, it travels in the drying furnace 8 again. Therefore, the amount of heat in the drying furnace 8 taken away by the truck T is small and the running cost is reduced, and the number of the trucks T can be reduced to the number of vehicles traveling on the short circulating track 10 of the floor conveyor 9, so that the equipment cost can be reduced.

When the work of the day is completed, the transfer line between the processes is stopped, and the transfer of the work from the previous process to the next process is stopped.
In all of the work W being conveyed, after those in drying in the drying furnace 8 ended drying, electrodeposition truck floor conveyor 9 Nokae position P ₂ are those in electrodeposition coating with coating device 6 after recombination is dried terminated in a drying oven 8 placed on T, pretreatment apparatus 5 that in the pretreatment in the finished electrodeposition coating in the electrodeposition coating device 6 in Nokae position P ₂ truck floor conveyor 9 T
To be replaced loaded after completion of drying in a drying oven 8, is replaced placed on the placing flashing position P ₃ in hanger H or pre hanger Hs overhead conveyor 2, pretreatment, painting, After drying, the first and second It is stored in storage tracks 13 and 14. At this time, among the 73 works transported by the floor conveyor 9 and the overhead conveyor 2, the first storage track 13 holds the preceding 49 works W, for which drying has been completed, in the return position P _3. Are sequentially put back on the hanger H of the overhead conveyor 2 and are sent from the draw-in side 13a and stored while being suspended on the hanger H. Further, on the second storage track 14, the subsequent 24 works W for which drying has been completed are placed on the spare hanger Hs sent from the sending side 14 b to the loading position P ₃ of the circulation track 3, and are returned. While being suspended from the spare hanger Hs, it is sent from the drawing side 14a and stored.

In this case, assuming that the storage pitch is about 7 m, the first storage track 13 is 49 × 7 m ≒ 35 in order to store 49 works W.
A distance of 0 m is required, and the second storage track 14 has 24 × 7 in order to store 24 works W.
Since a distance of m ≒ 170m is required, it is sufficient to secure a total length of about 520m, and if all the workpieces W are to be stored on a trolley, the space for storing empty trolleys and all work Since there is no space for storing the truck with the vehicle loaded thereon, the total length of the storage track is reduced to about 1/2 as compared with the conventional coating equipment, and the space utilization efficiency can be significantly improved. Also, the hanger H for 49 vehicles and the spare hanger Hs for 24
Although 49 hangers H are used for pre-treatment and electrodeposition coating of the workpiece W, the number of hangers to increase for storage is only 24 spare hangers Hs. And 24 for drying the workpiece W.
It is sufficient if there are two trolleys T, and the number of hangers increases by 24 units, but the number of trolleys decreases by 49 units compared to the painting equipment that stores all work W on the trolleys, so the overall equipment cost is reduced. Is done.

The next morning, the transfer line between each process is
When it is moved, it is stored in the first storage track 13.
The hanger H from the sending side 13b.
Unloading position by sending out sequentially on circulation track 3 of conveyor 2
P_FourTo the unloading device P _FourWith overhead conveyor
(A) The work W is dropped from the hanger H and transported to the next process.
To the conveyor 11 and then the second storage
Transfer the hanger H stored in the track 14 to its sending side
14b on the circulation track 3 of the overhead conveyor 2
Sequentially and feed the hanger H directly or in the first strike.
Unloading position P via storage orbit 13_FourTransfer to
After unloading the workpiece W, the arrival position P₁Transfer to Arrival position
Place P₁Then, the first hanger H is the arrival position P₁Reach
And the workpieces W transported from the previous process arrive sequentially
Then, pretreatment and painting work are started. And the transfer position
P_TwoAfter loading on the truck T of the floor conveyor 9 in the empty
Hangers H are sequentially sent to the second storage track 14
Then, empty hangers H for the number of spare hangers Hs are reserved
Hs is stored as Hs, and subsequent hanger H
Is the transfer position P_TwoAnd put it on the cart T of the floor conveyor 9
After replacement, return position P_ThreeIn the drying furnace 8
Ark W is put back and unloading position P_FourTransferred to
Arrival position P₁That has been transported to
Work, and continue painting.

As described above, according to this embodiment, the work W is stored while being suspended from the hanger H.
Not only can this save space, but there is no need for space for storing empty trolleys or storage for trolleys with work, and the number of trolleys is drastically reduced, dramatically improving space utilization efficiency. At the same time, the equipment required for storage is reduced to reduce equipment costs. In addition, since the carriage T of the floor conveyor 9 exits the drying furnace 8 without traveling to the next process, and is immediately carried into the drying furnace 8 after rotating around the elevator device 7, the carriage T is cooled before it is cooled to room temperature. Then, the inside of the drying furnace 8 is run again. Therefore, the amount of heat in the drying furnace 8 taken away by the cart T is small and the running cost is reduced, and at the same time, the number of the carts T is enough for traveling on the floor conveyor 9, so that the equipment cost can be reduced.

In the above description, an electric device is used as the coating device.
Explained coating equipment when using a coating equipment
However, the present invention is not limited to this.
A coating device can also be used. In this example, 1
Transfer position on the front side of the elevator device 7
P _TwoWork W is hanger H of overhead conveyor 2
From above to the truck T of the floor conveyor 9 and the loading on the back side
Return position P_ThreeTo put it back on the hanger H from the trolley T
Although the present invention has been described, the present invention is not limited to this.
Separate elevator devices may be provided in the installation. In addition,
The storage trajectories 13 and 14 are used to form separate loops.
In addition to the above case, the common side 13a and 14a
Sides 13b and 14b formed in a forked loop
It may be.

[0028]

As described above, according to the present invention, when the same number of works are stored, the storage space of the hanger slightly increases, but the space for storing the empty car and the bogie carrying the work are provided. Storage space is eliminated, and the number of bogies is drastically reduced, so that the space utilization efficiency can be significantly improved, and at the same time, the equipment required for storage can be reduced to reduce equipment costs. , The floor conveyor is formed so that the truck traveling in the drying furnace returns immediately to the drying furnace without transporting the work to the next process, so the amount of heat consumed in the drying furnace is reduced and running costs are reduced. It has an excellent effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is a plan view showing a layout of a coating facility according to the present invention and a running state thereof.

FIG. 2 is a plan view showing the storage state.

FIG. 3 is a plan view showing a layout of a conventional facility and a running state thereof.

FIG. 4 is a plan view showing the storage state.

[Explanation of symbols]

1 ··· Coating equipment W ··· Work 2 ··· Overhead conveyor H ··· Hanger 3 ··· Circulation trajectory 4 ··· Loading device 5 ··· Pretreatment device 6 ··· Electrodeposition coating device 7 ··· Elevator device 9 ··· Floor conveyor T ··· Dolly 8 ··· Drying furnace 8out ··· Drying furnace outlet 8in ··· Drying furnace inlet 10 · Circulation track 11 ··· Conveyor 12 ··· Unloading device 13 ··· First storage track 14 ··· Second storage track 13a, 14a ··· Retraction side 13b, 14b ···・ Sending side P ₁・ ・ ・ Reception position P ₂・ ・ ・ Replacement position P ₃・ ・ ・ Return position P ₄・ ・ ・ Unload position

Claims (1)

[Claims] 1. A work (W) conveyed from a previous process is moved along an overhead conveyor (2) formed on a circulation track (3) at a predetermined loading position (P ₁ ) to the overhead conveyor (2). Loading device (4) for loading on the hanger (H), a pretreatment device (5) for pretreating the surface of the work (W) loaded by the loading device (4), and the pretreatment device (5) A coating device (6) for immersing the work (W), which has been subjected to the pre-treatment, in the paint and applying the paint to the surface thereof
Then, the work (W) to which the paint has been applied by the coating device (6) is lowered from the hanger (H) of the overhead conveyor (2) at a predetermined transfer position (P ₂ ) and travels through the drying furnace (8). And an elevator device (7) for transferring the work (W) to the carriage (T) of the floor conveyor (9), which is pre-processed and painted while transporting the work (W) by the overhead conveyor (2). The work (W) is placed on a truck (T) of a floor conveyor (9), dried while being conveyed, and is dried. After the drying is completed, the coating equipment is conveyed to the next step. a drying oven (8) in is formed in a circulation track (10) back to traveling the drying furnace outlet according repositioned before the (8out) (P ₂₎ street drying oven entrance (8in), drying furnace outlet off, from (8out) to Nokae position (P ₂₎ Akonbea (9) along a circular trajectory (10), the carriage of drying furnace (8) in dry finished workpiece (W) a predetermined mounting flashing position (P ₃₎ in the floor conveyor (9) (T)
Again from the hanger (H) on the overhead conveyor (2)
An elevator device (7) is mounted on the overhead conveyor (2) which returns from the return position (P ₃ ) to the loading position (P ₁ ) along the circulation path (3) of the overhead conveyor. A conveyor (11) for transferring the work (W) returned to the hanger (H) at (P ₃ ) from the overhead conveyor (2) at a predetermined unloading position (P ₄ ) and transferring it to the next process
The unloading device (12) for reloading the work (W) is arranged in order, and works (W) for a predetermined number of hangers (H) transferred on the circulation track (3) of the overhead conveyor (2).
The first storage track (13) in the form of a loop for storing the data while suspending it on a hanger (H) is provided on the retracted side (13a).
And the sending side (13b) to the overhead conveyor (2).
Between the loading position (P ₃ ) and the unloading position (P ₄ ) so as to branch and join the circulation track (3) and travel on the circulation track (10) of the floor conveyor (9). A loop-shaped second storage track (14) that has a predetermined number of spare hangers (Hs) of the trolleys (T) and stores the work (W) suspended in the spare hangers (Hs).
Diverges the inlet side (14a) from the circulation track (3) between the return position (P ₃ ) and the unloading position (P ₄ ) of the overhead conveyor (2), and branches the outlet side (14a).
b) is the return position of the overhead conveyor (2)
Before (P ₃ ), it is laid so as to join the circulation track (3), and when the loading of the work (W) from the previous process and the unloading to the next process are stopped, the overhead conveyor (2) and All works (W) being conveyed on the floor conveyor (9)
After finishing the pretreatment, painting and drying, the required number of workpieces (W) on the top side are placed on the hanger (H) at the return position (P ₃ ) described above, and then suspended on the hanger (H). After being suspended and stored in the first storage track (13), the remaining work (W) is placed back on the spare hanger (Hs), and then suspended in the spare hanger (Hs). A coating facility characterized by being stored in the second storage track (14).