JPH10180169A - Coating facilities and drying equipment for coating used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance thermal efficiency in a drying furnace and improve a dried quality by reducing the dimensions of the entire coating facilities through miniaturizing the drying furnace and at the same time, inhibiting a heat leakage from the drying furnace, when coating and drying a long-size work. SOLUTION: A drying furnace 3 for drying a coat applied to a work W is installed in the back stage of a coating chamber in which a coating machine for coating the work W is provided. In addition, the work W is carried straight in its longitudinal direction by an overhead conveyor C1 for coating from the coating chamber to the drying furnace 3 and by an overhead conveyor C2 from the drying furnace 3 to a following step. The drying furnace 3 has a high temperature area 5 for drying the work W formed at the upper stages of a carrying-in aperture 4in and a carrying-out aperture 4out. The work W conveyed upto the drying furnace 3 is switched to a lift conveyor 7 and is made to ascend/ descend perpendicularly with the longitudinal direction of the work W maintained horizontally. Thus these works W are transferred in parallel to each other vertically in the high temperature area 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating equipment for coating a long work and then drying a coating film on the work, and a coating drying equipment used for the same.

[0002]

2. Description of the Related Art Coating equipment for coating and drying workpieces requiring high production efficiency is to continuously paint unpainted workpieces conveyed by a conveyor in a coating room and to finish the coated workpieces in a drying oven. It is preferable that drying can be continuously performed. In this case, for example, when a long work having a total length of several meters or more is to be painted, it is convenient to carry out painting in a painting room while conveying the work in a horizontal direction with the longitudinal direction of the work being horizontal. However, when the work is carried in and dried in this way, the drying furnace becomes extremely long, and a large installation space is required.

[0003] To shorten the overall length of the drying oven, each work may be conveyed without any gap. For example, when a long work such as a plate material forming a guard rail is dried, a transfer time interval of each work is required. 3 minutes, total length of work 6
If it is m, the transport speed when transporting the work without gaps is 2 m / min. And the time required for drying is 30
The total length of the drying oven is at least 2m / min x 30
Minutes = 60m. Therefore, in order to make the drying furnace more compact while securing the drying time, and to reduce the size of the entire coating equipment, the work is not transported in series in the longitudinal direction and dried, but the work is moved in the longitudinal direction. Japanese Patent Application Laid-Open No. 8-192088 has proposed a coating facility provided with a drying facility for drying by moving it parallel to the direction obliquely forward.

In this coating equipment, as shown in FIG. 5, an overhead conveyor 41 for transporting a long work W in the longitudinal direction is provided through a coating chamber 42, and an unpainted work W is transferred to the coating chamber 42. Then, the workpiece W is transported to the drying furnace 43 after painting. The overhead conveyor 41 guides a front trolley guide rail 44F that guides a front trolley 45F that hangs the front of the work W and a tail trolley 45T that hangs the rear of the work W on the loading side in the drying furnace 43. Tail trolley guide rail 4
It branches to 4T. And each guide rail 44F,
44T is formed so as to be obliquely forward toward the longitudinal direction of the workpiece W, and merges again on the unloading side in the drying furnace 43.

[0005] According to this, the front trolley 45F and the tail trolley 45T, which hang the work W that has been coated in the coating room 42, are guided by the conveyor rail 44 of the overhead conveyor 41, and the work W is transferred from the entrance 46 to the drying furnace. 43. Then, the front trolley 45F suspending the front of the work W is guided by the front trolley guide rail 44F, and the tail trolley 45T suspending the rear of the work W is guided by the tail trolley guide rail 44T. Thereby, the workpiece W is dried while moving obliquely forward with respect to its longitudinal direction,
It is carried out from the carry-out port 47. As described above, since the workpieces W are dried while being translated obliquely forward in the drying furnace 43, each workpiece W is approximately 4
It can be transported at intervals of 0 to 50 cm. Therefore, the transfer pitch of the work W is required to be at least as long as the length of the work W when the work W is conveyed in series, whereas it is only required to be several tens of cm when the work W is moved diagonally forward. Can be made extremely compact.

[0006]

However, in this case, the drying furnace 43 has the carry-in port 46 and the carry-out port 47 for the work W formed at the same height as the high-temperature region for drying the work. At the same time, the high-temperature air leaks from the discharge port 46 and the carry-out port 47, and at the same time, the low-temperature external air enters the drying furnace 43, so that a problem that the thermal efficiency in the drying furnace 43 is reduced easily occurs. Accordingly, the amount of heat required to heat the inside of the drying furnace 43 to a predetermined temperature and the amount of heat required to maintain the temperature at the predetermined temperature are increased, and the running cost is increased. Further, since external air enters below the drying furnace 43, the lower end side of the work W conveyed in the drying furnace 43 is always processed at a low temperature,
The work W cannot be heated and dried uniformly, which may adversely affect the drying quality. In addition, since the low-temperature external air enters the drying furnace, the organic solvent in the heat treatment furnace is agglomerated. Since it becomes a stain and adheres to the inner wall, labor and maintenance costs for cleaning are increased. Further, since the workpiece W translated in the drying furnace 43 is conveyed in a state where its surfaces face each other and is close to each other, it is difficult for heat to reach particularly in the case of radiant heating, and even in the case of forced convection heating, hot air Flowed in parallel with the surface, making it difficult to dry efficiently.

In view of the above, the present invention aims to reduce the size of a drying furnace when coating and drying a long workpiece, thereby reducing the size of the entire coating equipment and suppressing heat leakage from the drying furnace. It is a technical object to improve the thermal efficiency in a drying furnace, reduce running costs, and further improve the drying quality by uniformly heating a work.

[0008]

SUMMARY OF THE INVENTION To solve this problem, the present invention provides a coating equipment comprising a drying chamber for drying a coating film disposed downstream of a coating chamber for coating a long work. In addition, a conveyor for painting that transports unpainted workpieces to the painting chamber and transports painted workpieces to the drying furnace, and a conveyor for transporting dried workpieces that are transported from the drying furnace to the next process. However, the work consists of an overhead conveyor that hangs the work on a hanger and conveys the work in the longitudinal direction, and in the drying furnace, a high-temperature area for drying the work is formed in the upper stages of the entrance and the exit, and
In the drying furnace, the work is vertically moved upward while the longitudinal direction of the work carried in from the carry-in port is horizontally maintained along the traveling locus of the elevating conveyor driven by the endless chain and passing through the high-temperature area. And a return path for transporting the workpiece vertically downward while maintaining the longitudinal direction of the workpiece horizontally from the upper end position of the elevating conveyor is formed, and transported by the coating conveyor. A loading / unloading device for unloading the work that has been moved without changing its direction and loading the work on the elevating conveyor of the drying furnace, and unloading the work that has been lowered by the elevating conveyor without changing its direction. An unloading transfer device for loading the unloading conveyor is provided.

According to the present invention, an unpainted work is carried into a painting room by a painting conveyor while being hung on a hanger and painted. At this time, the works are arranged in series with the longitudinal direction thereof being substantially horizontal, and are conveyed in a posture most suitable for continuously painting a long work. Next, the workpiece after the coating is transported to the drying furnace by the coating conveyor, and is transferred to the elevating conveyor of the drying furnace. At this time, for example, by arranging the coating conveyor horizontally at the unloading position, the work becomes horizontal in the longitudinal direction, while the elevating conveyor transfers the work vertically upward while keeping the longitudinal direction horizontal. Therefore, it is not necessary to change the direction of the work when transferring the work from the painting conveyor to the elevating conveyor, so that the mounting mechanism is simplified. Similarly, it is not necessary to change the direction of the work when transferring the work from the lifting conveyor to the unloading conveyor, and the mounting mechanism is simplified.

A high-temperature region for drying the work is formed at the upper stage of the carry-in and carry-out openings, and the work carried into the drying furnace from the carry-in port is vertically moved up and down in the high-temperature region through the transport forward path and the transport return path. Is done. Therefore, the drying oven
It can be installed if there is a flat area enough to secure the transport forward path where the workpiece rises and the transport return path where the workpiece descends, and the installation area becomes extremely compact. Further, since the high-temperature area for drying the work is formed at the upper stage of the carry-in and carry-out ports, the high-temperature air in the high-temperature area does not leak from the carry-in and carry-out ports, and the outside air having a low temperature is carried in. There is no intrusion into the high temperature area from the mouth and the exit. Therefore, the heat efficiency is excellent, the amount of heat required to heat the inside of the drying furnace to a predetermined temperature and the amount of heat required to maintain the predetermined temperature can be reduced, and not only the running cost is reduced, but also the temperature is reduced. Since the low external air does not enter into the drying furnace, the tar is less likely to adhere to the inner wall of the heat treatment furnace, and the labor for cleaning is reduced. Furthermore, even if the inside of the drying furnace has temperature unevenness in the vertical direction and a low temperature part and a high temperature part may be formed depending on the height, the work passes through the low temperature part as well as the high temperature part while moving up and down. As a result, the whole is heated to the same temperature, so that it is dried evenly and uniformly.

In addition, if a heater is provided at a position facing both sides of the work along the forward and backward transportation paths where the work moves up and down, the work is always transported with both sides facing the heater. The heating can be performed very efficiently and uniformly, and the drying time can be shortened.

[0012]

Embodiments of the present invention will be specifically described below with reference to the drawings. 1 is a schematic configuration diagram of a coating facility according to the present invention, FIG. 2 is a schematic configuration diagram of a drying facility according to the present invention, FIG. 3 is a perspective view thereof, and FIG. 4 is a perspective view showing a work replacement operation.

The coating equipment 1 according to the present embodiment is for coating and drying a long work W such as a plate or a bar forming a guardrail, and is a coating machine (not shown) for coating the work W. work but with the installed painted chamber 2, a drying oven 3 installed in a subsequent stage, the painting conveyor C ₁ for conveying the workpiece W to the coating chamber 2 to as drying furnace 3, a drying furnace 3 next step and a carrying-out conveyor C ₂ for conveying the W. Then, the painting conveyor C ₁ and unloading conveyor C ₂ is formed with an overhead conveyor for conveying said hanging was hanger H of the workpiece W is engaged with the trolley T _1, T ₂ in the longitudinal direction of the workpiece W Have been.

The drying furnace 3 has an opening 4 in and an opening 4 out for loading and unloading the work W at the bottom thereof, and a high temperature region 5 for drying the work W on the upper stage.
Are formed. The workpiece W loaded from the loading port 4in is perpendicular to the longitudinal direction of the drying furnace 3 along the traveling locus of the lifting conveyor 7 driven by the endless chain 6 and passing through the high-temperature area 5. A transport forward path 8up which is raised upward, and a transport return path 8dwn which lowers the work W vertically downward with respect to the longitudinal direction from the upper end position of the elevating conveyor 7 and reaches the carry-out port 4out are formed through the partition wall 9. I have. The upper ends of each of the transport forward path 8up and the transport return path 8dwn are connected so that the workpiece W can pass through. In addition, the partition wall 9 and the furnace wall 10 include:
Heaters 11... For heating the work W are disposed at positions opposite to both surfaces of the work W that moves up and down the transport forward path 8up and the transport return path 8dwn. In this case, there is no heater 11 at the upper end where the forward conveying path 8up and the backward conveying path 8dwn communicate with each other to prevent overheating of the upper end side of the furnace 3.

The unloading position of the painting conveyor (loading conveyor) C ₁ is disposed opposite to the loading position of the lifting conveyor 7, and the unloading conveyor C ₂ is positioned at the unloading position of the lifting conveyor 7. The loading positions are arranged to face each other. On the opposite side of the lifting conveyor 7 across the painting conveyor C ₁ , there is a loading transfer device 12 in which unloads the work W transported by the painting conveyor C ₁ and loads it on the lifting conveyor 7. is disposed on the opposite side of the lifting conveyor 7 across the unloading conveyor C ₂ is unloading No換device 12out for arrival of the workpiece W which has been lowered by the elevating conveyor 7 to the unloading conveyor C ₂ is distribution Has been established.

The work W has hangers H at both front and rear ends.
Suspended in H, with the hanger H of the respective trolley T ₁ of the painting conveyor C ₁ and the unloading conveyor C ₂ at its upper end, T ₂ engaging hook 15 is formed,
A horizontal crossbar 16 is mounted in the middle of the crossbar, and a crossing portion of the hanger H and the crossbar of the crossbar 16 forms a transfer engagement portion 17 which is engaged with each of the transfer devices 12in and 12out. Further, the crossbar 16 is extended to a position protruding forward and backward from the front end and the rear end of the crossbar 16 in a state where the work W is suspended, and both ends of the crossbar 16 are bent downward by 90 °, and the bending thereof is performed. The part is the elevating conveyor 7
Is formed on the lifting / lowering engaging portion 18 which engages with.

The elevating conveyor 7 has two endless chains 6, 6 arranged side by side at least at intervals longer than the entire length of the work W, and each endless chain 6, 6 has an elevating and lowering hanger H A cylindrical elevating and lowering support portion 20 that is loosely fitted to the engagement portion 18 is attached.
The lifting support portion 20 is rotatably attached at its upper end to a pin 22 connecting the links 21 of the endless chains 6 and 6, so that the lifting support portion 20 can be raised and lowered with its opening always upward. At the same time, by running the endless chains 6, 6, the hanger H standing by at the loading position is loosely fitted and engaged with the elevating and lowering engagement portion 18 of the hanger H from below to bring the hanger H and the work W into a vertical state. It is made to go up and down while maintaining it.

In the loading transfer device 12in, a transfer arm 23 engaged with the transfer engagement portion 17 of the hanger H can be moved up and down by any means such as cylinders 24 and 25, and It is arranged to be movable forward and backward between the arrival position of the vertical conveyor 7 and and unloading position of the painting conveyor C _1.
Accordingly, when the workpiece W has arrived at and unloading position of the painting conveyor C _1, the hanger H placement of換係engaging portion 17
And advanced to engage, can be removed from the trolley T ₁ of the painting conveyor C ₁ by lifting the hanger H is moved upward. Thereafter, the transfer arm 23 is advanced, and the work W is transferred to the loading position of the elevating conveyor 7 to be on standby.

The transfer arm 12 to be engaged with the transfer engagement portion 17 of the hanger H is provided at the unloading transfer device 12out with any means such as a cylinder (similar to the transfer transfer device 12in). to be vertically movable up and down by not shown), and is arranged to be retractable between and unloading position and the arrival position of the unloading conveyor C ₂ of the lifting conveyor 7. Thereby, when the workpiece W is lowered to the unloading position of the lifting conveyor 7,
When it advances to that position and is engaged with the transfer engagement portion 17 of the hanger H and receives the hanger H, the elevating support portion 20 of the elevating conveyor 7 is lowered and detached from the elevating engagement portion 18 of the hanger H. Then, by retracting the No換arm 26, have been made so as to stand by transferring the workpiece W to the arrival position of the unloading conveyor C _2.

The above is an example of the configuration of the present invention, and its operation will be described next. First, the work W is suspended before and after by hangers H, H and sequentially conveyed in the longitudinal direction by a coating conveyor C ₁ , painted in the coating chamber 2, and then conveyed to the drying furnace 3. When the workpiece W comes into and unloading position of the painting conveyor C _1, No換arm 23 of the carrying-No換device 12in is engaged in advance to換係engaging portion 17 mounting of each hanger H. Increasing the No換arm 23 in this state, is disengaged between the hook 15 which each hanger H is formed at its upper end being lifted with the trolley T ₁ of the painting conveyor C _1. Then, the transfer arm 23 is extended, and the work W is made to wait at the loading position of the lifting conveyor 7.

At the loading position of the elevating conveyor 7, the cylindrical elevating support part 20 attached to the endless chains 6, 6 moves upward from below.
Since the hanger H is on standby so that the elevating and lowering engaging portion 18 of the hanger H is located on the locus of the hanger H, the elevating and lowering support portion 20 of the elevating conveyor 7 is loosely fitted to the elevating and lowering engaging portion 18 of the hanger H, Thereby, the work W is loaded on the elevating conveyor 7. After the work W is loaded on the elevating conveyor 7, the transfer arm 23 of the loading transfer device 12in is retracted to the original position, and waits until the subsequent work W arrives.

Then, the work W is lifted vertically upward while keeping its longitudinal direction horizontal, and the lift conveyor 7
When entering the high-temperature area 5 from the carry-in entrance 4in along the traveling locus and ascending the transport outward path 8up, the heater 11 heats both surfaces thereof and reaches the upper end position of the lifting conveyor 7. At the upper end position of the elevating conveyor 7, the running direction of the endless chain 6 is reversed. However, since the support engagement portion 20 is rotatably attached to the pin 22, the work W keeps its longitudinal direction horizontal. In this state, it is lifted and lowered while being suspended vertically, and its posture does not change. Next, the work W turns at the upper end position of the elevating conveyor 7 and descends vertically downward while keeping its longitudinal direction horizontal. When the work W descends on the transport return path 8dwn along the traveling locus of the elevating conveyor 7, At 11, both surfaces are dried while being heated, and are carried out of the furnace 3 through a carry-out port 4out.

At this time, the carry-in port 4in and the carry-out port 4out
Is formed at the bottom of the drying furnace 3 and the high-temperature region 5 for heating and drying the work W is formed at the upper stage, so that the high-temperature air in the furnace 3 leaks outside from the carry-in port 4in and the carry-out port 4out. In addition, low-temperature external air does not enter the inside through the carry-in port 4in and the carry-out port 4out.
Therefore, the heat efficiency is extremely high because heat does not leak to the outside, and the amount of heat required to heat the drying furnace 3 and the amount of heat required to maintain the inside of the furnace 3 at a predetermined temperature are small, and running costs are reduced. Can be reduced. In addition, drying oven 3
Although the inside may have a temperature unevenness in the vertical direction and a low-temperature portion and a high-temperature portion may be formed depending on the height, the work W moves up and down and passes the low-temperature portion in the same manner as the high-temperature portion. Since it is heated to the same temperature, it is uniformly dried without unevenness, and the drying quality is improved.

Next, when the dried workpiece W falls to the unloading position of the lifting conveyor 7, the unloading transfer device 12
It is replaced placed on the carry-out conveyor C ₂ by out, is carried out to the next step. The operation of the transfer arm 26 at this time depends on the transfer arm 23 of the loading transfer device 12in.
Since the operation may be performed in the reverse order, the detailed description is omitted.

[0025]

As described above, according to the present invention, a long work is conveyed in the painting conveyor and the unloading conveyor in the longitudinal direction.
Since the work is moved up and down in the vertical direction while keeping its longitudinal direction horizontal, the work can be replaced with the same posture without changing the direction of the work, and the effect that it is possible to transport smoothly between each stroke There is. A high-temperature area for drying the work is formed in the upper stage of the carry-in and carry-out ports, and the work carried into the drying furnace from the carry-in port is vertically moved up and down in the high-temperature area through the transport forward path and the transport return path. Therefore, the drying oven can be installed if it has a flat area enough to secure the transport forward path where the workpiece rises and the transport return path where the workpiece descends. There is an effect that the size can be reduced. Further, since the high-temperature region for drying the work is formed at the upper stage of the carry-in and carry-out ports, the heat efficiency is excellent, and the amount of heat required to heat the inside of the drying furnace to the predetermined temperature is also maintained at the predetermined temperature. The required amount of heat can also be saved, and the running cost can be reduced. Furthermore, even if the inside of the drying furnace has temperature unevenness in the vertical direction and a low-temperature part and a high-temperature part are formed depending on the height, the work passes through the low-temperature part as well as the high-temperature part while moving up and down. As a result, it is heated to the same temperature as a whole, so that there is an effect that drying can be performed uniformly and evenly, and the drying quality can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a coating facility according to the present invention.

FIG. 2 is a schematic explanatory view of a drying facility according to the present invention.

FIG. 3 is a perspective view thereof.

FIG. 4 is a perspective view showing a work replacement operation.

FIG. 5 is a schematic explanatory view showing a conventional drying equipment for coating.

[Explanation of symbols]

1 ... Coating equipment W ... Work 2 ... Coating room 3 ... Drying furnace C ₁ ... Coating conveyor C ₂ ... Conveying conveyor H · · · · Hanger T ₁ · · · trolley T ₂ · · · · trolley 4in · · · carry-in 4out · · · carry-out 5 · · · high-temperature region 6 · · · · endless chain 7 ····· Elevating conveyor 8up ··· Conveying forward path 8dwn ··· Conveying return path 9 ···· Partition wall 11 ··· Heater 12in ··· Reloading device 12out ···· Unloading Replacement device 17 ... Replacement engagement part 18 ... Elevation engagement part 20 ... Elevation support part 22 ... Pins 23, 26 ... Replacement arm

Claims (3)

[Claims] 1. A coating equipment for coating a long work (W) and then drying a coating film of the work (W), wherein a coating machine for coating the work (W) is installed. Coating room (2), a drying furnace (3) installed at the subsequent stage, and a coating conveyor (C ₁ ) for transferring the work (W) to the drying furnace (3) through the coating room (2). And a carry-out conveyor (C ₂ ) for transferring the work (W) from the drying furnace (3) to the next step, and each of the conveyors (C ₁ , C ₂ ) moves the work (W) in its longitudinal direction. The drying furnace (3) is formed by forming a high-temperature area (5) for drying the work (W) at the upper stage of the carry-in port (4in) and the carry-out port (4out). In the drying furnace (3), an elevating controller driven by an endless chain (6) and passing through the high-temperature area (5) is provided. Along the running track of the bear (7), the carry-in entrance (4in)
A transfer forward path (8up) for raising the work (W) vertically upward while keeping the longitudinal direction of the work (W) carried in from a horizontal position, and the work (W) from the upper end position of the elevating conveyor (7). The work (W) is lowered vertically downward while the longitudinal direction of the work (W) is kept horizontal to form a return path (8dwn) to the carry-out port (4out), and the work (W) is transferred by the coating conveyor (C ₁ ). The loading and unloading device (12in) for unloading the workpiece (W) without changing its direction and loading it on the lifting conveyor (7) of the drying furnace (3)
And the work (W) that has been lowered by the lifting conveyor (7)
The unloading conveyor without changing its direction
(C ₂ ) A coating facility comprising an unloading transfer device (12 out) for loading on (C ₂ ). 2. A coating drying apparatus for carrying a long work (W) suspended from a hanger (2) and conveyed in a longitudinal direction thereof into a drying furnace (3) for drying. The drying furnace (3) has a high-temperature region (5) for drying the work (W) formed at the upper stage of the carry-in port (4in) and the carry-out port (4out). The carry-in port (4in) is driven along the traveling locus of the elevating conveyor (7) that is driven by the endless chain (6) and passes through the high-temperature area (5).
A transfer forward path (8up) for raising the work (W) vertically upward while keeping the longitudinal direction of the work (W) carried in from a horizontal position, and the work (W) from the upper end position of the elevating conveyor (7). The work (W) is lowered vertically downward while the longitudinal direction of the work (W) is kept horizontal to form a transport return path (8dwn) reaching the carry-out port (4out), and the transport forward path and the transport return path (8up, 8dwn) are formed. ) Includes a heater (11) for heating the work (W) at a position facing both surfaces of the work (W).
Is installed, and the conveyor (C ₁ ) for carrying the work (W) to the drying furnace (3) and the work (W) from the drying furnace (3) to the next step.
Conveyor (C ₂ ) is formed by an overhead conveyor that transports the work (W) in the longitudinal direction thereof, and faces a loading position and an unloading position of the lifting conveyor (7), respectively. A loading / unloading device (12in) for disposing a work (W) conveyed by the carry-in conveyor (C ₁ ) without changing its direction and loading the work (W) on the elevating conveyor (7); paint, characterized in that it comprises a conveyor unloading No換device for arrival workpiece which has been lowered to (W) to the unloading conveyor (C ₂₎ and Datsuni without changing the orientation at (7) (12out) For drying equipment. 3. The carry-in conveyor (C ₁ ) and the carry-out conveyor (C ₂ ) engage a hanger (H) suspending a work (W) with a trolley (T ₁ , T ₂ ). The transfer hanger (H) is formed by a conveyer overhead conveyor. The hanger (H) is formed with a transfer engagement portion (17) to be engaged with each of the transfer devices (12in, 12out). A lift engaging portion (18) that engages with the lift conveyor (7) is formed at a position protruding forward and rearward from a front end and a rear end of the work (W) in a suspended state, and the lift conveyor (7) is formed. ) The Nijo Endless Chain
(6, 6) are arranged side by side at least longer than the entire length of the work (W), and each endless chain (6, 6) has:
The hanger (H) waiting at the loading position of the elevating conveyor (7) is engaged from under the elevating and engaging portion (18) of the hanger (H) to elevate the hanger (H) and the work (W) while being suspended vertically. The lifting and lowering support part (20) to be rotated is disposed rotatably with respect to the horizontal axis, and the carry-in reloading device (12in) is provided with a work () which has reached the unloading position of the coating conveyor (C ₁ ). W) is disengaged from the trolley (T ₁ ) of the coating conveyor (C ₁ ) by engaging the transfer engagement portion (17) of the hanger (2) and lifting the hanger (2). Then, the transfer arm (2) is transferred to the loading position of the elevator
3) is installed, and the lifting and lowering conveyor (7) is provided in the unloading transfer device (12out).
The work (W) lowered to the unloading position is engaged with the replacement engaging portion (17) of the hanger (H) suspended, and the hanger (2) is moved up and down by the elevating support portion of the elevating conveyor (7). (20)
3. The drying equipment for coating according to claim 2, further comprising a transfer arm (26) for transferring to a loading position of the unloading conveyor (C ₂ ) after being removed from the transfer arm and waiting.