JP6511421B2 - Paint dryer - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a coating drying apparatus for drying a coated object to which coating is applied by induction heating, and more particularly to a coating drying apparatus suitably used for drying a plurality of types of objects to be coated having different shapes.

  DESCRIPTION OF RELATED ART The hot-air drying furnace which blows a hot air on a to-be-coated-article is known as a method of drying large-sized structures (to-be-coated-article), such as a hydraulic shovel with which painting was given. In the coating and drying method using the hot air drying furnace, the hot air temperature is set to be equal to or higher than the standard baking temperature of the paint in order to prevent a defective baking at a portion having a large heat capacity in the object to be coated. For this reason, in the coating drying method using a hot air drying furnace, a portion having a small heat capacity in the object to be coated is excessively heated, which hinders energy saving. Moreover, in the coating drying method using a hot air drying furnace, the object to be coated reaches a desired temperature (baking temperature) because the object to be coated is heated by indirect heat input that blows hot air to the object to be coated. A long time is required, and it is difficult to reduce the time required for the coating and drying process.

  On the other hand, there is known a method of performing coating drying by induction heating in order to save energy and shorten the time required for the coating drying process. In this method of coating and drying by induction heating, a magnetic field line is generated around the coil by supplying a high frequency current to the coil, and an eddy current is generated under the influence of the magnetic field line inside the conductive object near the coil. is there. Thus, the object to be coated generates Joule heat by eddy current and is directly heated from the inside.

  Here, in order to use induction heating in order to dry a to-be-coated-article efficiently, it is necessary to produce the induction heating coil of the arrangement | positioning corresponding to the shape of a to-be-coated-article. For this reason, when the shape of a to-be-coated-article turns into multiple types, it is necessary to produce several types of induction heating coils corresponding to the shape of a to-be-coated-article.

  On the other hand, an induction heating coil group is configured in the induction heating apparatus for induction heating the object to be coated and coating drying by passing the object to be coated (work) between the pair of induction heating coil groups facing each other. The plurality of coil elements can be arranged in parallel in the upward and downward directions with respect to the passing direction of the article, and the distance between the upper and the lower of each coil element can be changed according to the size of the article An induction heating device configured has been proposed. According to this induction heating apparatus, each coil element can be made to approach a to-be-coated-article by adjusting the space | interval of the upper and lower direction of each coil element. Therefore, the same induction heating coil group can be used to heat a plurality of types of objects to be coated of different sizes, and the coating can be efficiently dried (see Patent Document 1).

JP 2012-138175 A

  However, the induction heating device according to the prior art is configured to change the distance between the plurality of coil elements constituting the induction heating coil group upward and downward with respect to the passing direction of the object to be coated. For this reason, for example, in the case of induction heating of a plurality of types of objects to be coated whose three-dimensional shape changes, such as a truck frame constituting a hydraulic shovel, the induction heating coil group is applied to the plurality of types of objects It is difficult to get close to the proper position. Therefore, in the induction heating device according to the prior art, it is difficult to uniformly heat the object having a complicated shape in the heating area of the induction heating coil group, and it is efficient to apply a plurality of types of objects to be coated having different shapes. There is a problem that it can not be dried well.

  The present invention has been made in view of the above-described problems of the prior art, and it is possible to properly heat a plurality of types of objects to be coated having different shapes using the same induction heating coil. It is an object of the present invention to provide a paint drying apparatus capable of efficiently drying.

  In order to solve the problems described above, the present invention relates to a coating drying apparatus for induction heating and drying by disposing a substrate between induction heating coils supported by a base member. Between the induction heating coil group arranged in parallel in a plurality of stages in the longitudinal and lateral directions, a coil supporting member for supporting the induction heating coil group on the base member, and between the coil supporting member and the base member A coil position changing mechanism provided to change the position of the coil supporting member with respect to the base member, and a controller possessing three-dimensional shape information of the object to be moved and giving movement information to the coil position changing mechanism And

  According to the present invention, since the controller gives movement information to the coil position changing mechanism based on the three-dimensional shape information of the object to be coated, the position of the coil supporting member with respect to the base member is changed. Can be brought close to a substrate having a complicated shape. As a result, it is possible to appropriately heat a plurality of types of objects to be coated having different shapes using the same induction heating coil group, and it is possible to efficiently dry the coating of various types of objects to be coated.

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the coating-drying apparatus by embodiment of this invention with a to-be-coated-article. It is a perspective view which shows the base member in FIG. 1, an induction heating coil group, a to-be-coated-article etc. It is the side view which looked at a base member, an induction heating coil group, a to-be-coated-article etc. from the arrow III-III direction in FIG. It is a side view of the same position as FIG. 3 which shows the state which has arrange | positioned the small to-be-coated-article between base members. It is a side view which shows the state which changed the position of the induction heating coil group according to a small to-be-coated-article. It is sectional drawing which looked at a base member and a coil position change mechanism from the arrow VI-VI direction in FIG. FIG. 7 is a cross-sectional view of the same position as in FIG. 6, showing a state in which the induction heating coil group is moved by the coil position changing mechanism. It is explanatory drawing which shows roughly the structure of an induction heating coil group. It is a block diagram which shows the connection state of a controller, an operating device, and a coil position change mechanism. It is a flowchart which shows the control processing which a controller performs at the time of coating drying of a to-be-coated-article.

  Hereinafter, an embodiment of a coating drier according to the present invention will be described in detail with reference to the attached drawings.

  In the present embodiment, a truck frame that constitutes, for example, a lower traveling body of a hydraulic shovel is illustrated as an object to be coated. The object to be coated 101 represents a large track frame, and the object to be coated 201 represents a small track frame. Here, as shown in FIGS. 1 to 3, the object to be coated 101 includes a center frame portion 101a, a left side frame portion 101b disposed on the left side of the center frame portion 101a, and extending in the front and rear directions; And a right side frame portion 101c which is disposed on the right side of 101a and extends in the front and rear direction. On the other hand, the object to be coated 201 also includes the center frame portion 201a, the left side frame portion 201b, and the right side frame portion 201c as in the case of the object to be coated 101 (see FIG. 4).

  The coating and drying apparatus 1 heats a plurality of types of objects to be coated having different shapes such as the object to be coated 101 and the object to be coated 201 by induction heating to dry the coating. Here, the coating / drying apparatus 1 is configured to include a base member 2 described later, an induction heating coil group 3, a coil support member 6, a coil position changing mechanism 7, and a controller 8.

  The base member 2 is disposed in a paint drying booth where paint drying is performed, and supports the induction heating coil group 3 via a coil support member 6 described later. Here, the base member 2 is formed by using a hollow square pipe having, for example, a rectangular cross-sectional shape, and a pair of upper surfaces facing each other at a distance larger than the length dimension in the front and rear direction of the large object 101 A base member 2a and a pair of lower base members 2b disposed on the lower side of the upper base member 2a are provided. A space between the pair of base members 2 is an object placement space 2c.

  The upper base member 2a of the base member 2 as a whole is constituted by two legs 2a1 disposed opposite to each other with the lower base member 2b in between and a cross beam 2a2 connecting the upper ends of the two legs 2a1. It is formed in a U-shaped gate shape. Here, as shown in FIG. 1, the distance A between the pair of base members 2 is set to be larger than the length dimension in the front and rear directions of the large object to be coated 101. Further, as shown in FIG. 3, the distance B between the legs 2a1 of the upper base member 2a is set larger than the width dimension in the left and right directions of the large object 101 to be coated. Furthermore, as shown in FIG. 4, the length dimension C of the lower base member 2 b is set smaller than the distance between the left side frame portion 201 b and the right side frame portion 201 c of the small-sized object 201.

  The induction heating coil group 3 is arranged in parallel in a plurality of stages in the height direction and the lateral direction (left and right directions) of the object to be coated 101. The induction heating coil group 3 is for inductively heating the object 101 disposed in the object disposition space 2c.

  The induction heating coil group 3 includes a plurality of upper coil elements 3a bridged between the cross beam portions 2a2 of the pair of upper base members 2a and a plurality of lower coil elements 3b bridged between the pair of lower base members 2b. And a plurality of side surface coil elements 3c bridged between the legs 2a1 of the pair of upper base members 2a. The upper coil element 3a, the lower coil element 3b, and the side portion coil element 3c are arranged in parallel in a plurality of stages in the height direction and the lateral direction of the object to be coated 101.

  Here, as shown in FIG. 8, the upper coil elements 3 a, the lower coil elements 3 b, and the side surface coil elements 3 c that constitute the induction heating coil group 3 have flexibility formed using a conductive material. By being connected by the hose 4, the whole is spirally continuous. Thus, the induction heating coil group 3 constitutes a series of continuous coils by the plurality of upper coil elements 3a, lower coil elements 3b, side portion coil elements 3c, and flexible hose 4, and a pair of upper base members It is wound between 2a and between the lower base members 2b. Then, the high frequency current is supplied from the high frequency power supply 5 to the series of induction heating coil group 3 so that each upper coil element 3a inductively heats the upper part of the object to be coated 101, and each lower coil element 3b induction-heats the lower part of the to-be-coated-article 101, and each side part coil element 3c induction-heats the side part of the to-be-coated-article 101. FIG.

  The coil support member 6 supports the induction heating coil group 3 with respect to each upper base member 2 a and each lower base member 2 b which constitute the base member 2. Here, the coil support member 6 supports the plurality of upper coil elements 3a constituting the induction heating coil group 3 with respect to the cross beam portion 2a2 of each upper base member 2a, and the plurality of lower coil elements 3b. A plurality of support members for the lower base member 2b and a plurality of support members for the side portion coil elements 3c on the legs 2a1 of the upper base members 2a are provided. That is, one coil supporting member 6 is provided between each upper coil element 3 a, each lower coil element 3 b, and each side surface coil element 3 c constituting the induction heating coil group 3 and the base member 2.

  The coil position changing mechanism 7 is provided between the plurality of coil support members 6 and the base member 2 and changes the position of each coil support member 6 with respect to the base member 2. That is, the coil position changing mechanism 7 comprises a plurality of the coil support members 6 provided between the cross beam portion 2a2 of the upper base member 2a and each of the coil support members 6, the leg portion 2a1 of the upper base member 2a, and each of the coil support members 6. It is constituted by a plurality provided between and a plurality provided between the lower base member 2 b and each coil support member 6.

  Here, the coil position changing mechanism 7 provided between the cross beam portion 2a2 of the upper base member 2a and the coil support member 6 will be described with reference to FIGS. 6 and 7. The coil position changing mechanism 7 is disposed in the cross beam portion 2a2 of the upper base member 2a, and includes a driven gear 7a connected to the coil support member 6, a drive gear 7b meshing with the driven gear 7a, and a drive gear 7b. It is comprised by the motor 7c to rotate. Then, the motor 7c is rotated in the forward and reverse directions by a control signal from the controller 8, which will be described later, so that the coil support member 6 moves upward and downward around the rotation shaft 7d of the driven gear 7a.

  Thereby, the upper coil elements 3a are formed in a shape by changing the positions of the upper coil elements 3a supported by the coil support member 6 between the respective horizontal beam portions 2a2 of the pair of upper base members 2a upward and downward. It can be made to approach to a different to-be-coated-article (for example, to-be-coated-article 101, 201 grade | etc.,). Similarly, by changing the position of the lower coil element 3b supported by the coil support member 6 between the pair of lower base members 2b, each lower coil element 3b is brought close to the object having a different shape. By changing the position of the side surface coil element 3c supported by the coil support member 6 between the legs 2a1 of the pair of upper base members 2a, the side surface coil elements 3c can be coated with different shapes. It is possible to get close to things.

  The controller 8 controls the respective coil position changing mechanisms 7 and the high frequency power supply 5 according to the type of the object to be dried. As shown in FIG. 9, the controller 8 includes a central processing unit (CPU) 8A, a storage unit (memory) 8b and the like, and the storage unit 8b includes a large object to be coated 101 and a small object to be coated 201 Upper coil elements 3a, lower coil elements 3b, and side surface coil elements corresponding to the three-dimensional shape information of each of a plurality of types of objects to be coated and the three-dimensional shapes of the plurality of types of objects 101 and 201, etc. 3c position information (coil element position information) is stored.

  The operation device 9 is connected to the input side of the controller 8, and by operating the operation device 9, information on the type of the object to be dried is input to the controller 8. Further, the output side of the controller 8 is connected to the high frequency power supply 5, the motor 7 c of each coil position changing mechanism 7 and the like.

  Here, for example, when painting and drying of the small-sized to-be-coated material 201 is performed after painting and drying of the large-sized to-be-coated material 101 are performed in the to-be-coated material arrangement space 2c, the controller 8 operates the operating device 9 Information on the object to be dried 201 to be dried next is input. Thereby, the controller 8 acquires three-dimensional shape information of the to-be-coated object 201 memorize | stored in the memory | storage part 8b, Each upper coil element 3a which comprises the induction heating coil group 3, each lower coil element 3b, Each side part The position of the coil element 3c is set to a position corresponding to the three-dimensional shape of the object to be coated 201, and a control signal is output to the motor 7c of each coil position changing mechanism 7.

  As a result, the motor 7c is driven, and the coil support member 6 moves downward around the rotation shaft 7d of the driven gear 7a (see FIG. 7). For this reason, the position of each coil support member 6 with respect to the base member 2 is changed, and as shown in FIG. 5, the positions of the upper coil element 3a, the lower coil element 3b, and the side portion coil element 3c should be painted dry next According to the shape of the to-be-coated-article 201, it changes beforehand.

  On the other hand, the controller 8 sets the frequency, voltage, heating time, and the like of the high frequency power supply 5 according to the amount of heat required to dry the small-sized object 201 and outputs a control signal to the high frequency power supply 5. Thus, a high frequency current according to the shape of the object to be coated 201 is supplied from the high frequency power supply 5 to the induction heating coil group 3.

  The coating drying apparatus 1 according to the present embodiment is configured as described above, and next, after the coating drying of the large object 101 shown in FIG. 3 is performed for the operation of the coating drying apparatus 1, FIG. The case of performing coating drying of the small-sized to-be-coated object 201 shown to these is mentioned as an example, and is demonstrated.

  First, as shown in FIG. 3, the large-sized to-be-coated object 101 is arrange | positioned in the to-be-coated-article arrangement | positioning space 2c between a pair of base members 2 in the state mounted in the trolley | bogie 102 for large. In this case, the object to be coated 101 is insulated from the ground by being mounted on the carriage 102.

  Here, before the to-be-coated object 101 is arrange | positioned in the to-be-coated object arrangement | positioning space 2c, the information regarding the to-be-coated object 101 is input into the controller 8 from the operating device 9. FIG. Thereby, the controller 8 acquires the three-dimensional shape information of the to-be-coated object 101 memorize | stored in the memory | storage part 8b, Each upper coil element 3a of the induction heating coil group 3, each lower coil element 3b, Each side part coil element The position 3c is set to a position corresponding to the three-dimensional shape of the object to be coated 101, and a control signal is output to the motor 7c of each coil position change mechanism 7. As a result, the upper coil element 3a, the lower coil element 3b, and the side surface coil element 3c move to a position according to the shape of the object to be coated 101 in advance.

  In this state, the object to be coated 101 placed on the carriage 102 is carried into the object placement space 2c.

  On the other hand, the controller 8 sets the frequency, voltage, heating time and the like of the high frequency power supply 5 in accordance with the amount of heat required to dry the large object to be coated 101 and outputs a control signal to the high frequency power supply 5. Thus, a high frequency current according to the shape of the object to be coated 101 is supplied from the high frequency power supply 5 to the induction heating coil group 3. Under the present circumstances, since the trolley | bogie 102 is insulated with respect to the base member 2 and the ground, the electric current from the high frequency power supply 5 does not leak to the ground etc.

  Thus, induction heating using the induction heating coil group 3 is performed on the object to be coated 101 disposed in the object placement space 2c. Then, the upper part of the object to be coated 101 is inductively heated by each upper coil element 3a constituting the induction heating coil group 3, and the lower part of the object to be coated 101 is inductively heated by each lower coil element 3b, and the upper side surface coil element 3c The side portions of the object to be coated 101 are inductively heated by this. As a result, the object to be coated 101 having a complicated shape can be heated uniformly, and the coating of the object to be coated 101 can be efficiently dried.

  Thus, after the coating and drying on the large-sized to-be-coated object 101 is completed, the to-be-coated object 101 is carried out from the to-be-coated object arrangement space 2c. Then, it prepares for the painting and drying operation for the substrate to be dried next (for example, the small substrate 201).

  Next, in the case of drying the coating of the small-sized object 201, information about the object 201 is input from the operation device 9 to the controller 8. Thereby, the controller 8 acquires three-dimensional shape information of the to-be-coated object 201 memorize | stored in the memory | storage part 8b, Each upper coil element 3a of the induction heating coil group 3, each lower coil element 3b, Each side part coil element The position 3c is set to a position corresponding to the three-dimensional shape of the object to be coated 201, and a control signal is output to the motor 7c of each coil position change mechanism 7.

  As a result, the motor 7c is driven, and as shown in FIG. 7, the coil support member 6 is moved downward about the rotation shaft 7d of the driven gear 7a, whereby each upper coil element 3a of the induction heating coil group 3 is The position is changed according to the shape of the object to be coated 201. Similarly to this, the positions of the lower coil elements 3b and the side coil elements 3c are changed by the coil position changing mechanism 7 according to the shape of the object 201 (see FIG. 5).

  In this state, the object to be coated 201 is carried into the object disposition space 2c while being mounted on the compact carriage 202. The carriage 202 has a shape corresponding to the dimensions of the small-sized object 201, and similarly to the carriage 102, the carriage 202 is insulated with respect to the base member 2 and the ground. As the object 201 is carried into the object disposition space 2c, the upper coil elements 3a are disposed close to the upper portion of the object 201, and the lower coil elements 3b are lower portions of the object 201. Are disposed close to each other, and each side surface coil element 3 c is disposed close to the side surface of the object 201.

  Then, the controller 8 sets the frequency, voltage, heating time, and the like of the high frequency power supply 5 according to the amount of heat required to dry the small-sized object 201, and outputs a control signal to the high frequency power supply 5. Thus, a high frequency current according to the shape of the object to be coated 201 is supplied from the high frequency power supply 5 to the induction heating coil group 3.

  Thus, induction heating using the induction heating coil group 3 is performed on the object to be coated 201 disposed in the object placement space 2c. Then, the upper part of the object 201 is inductively heated by each upper coil element 3a constituting the induction heating coil group 3, and the lower part of the object 201 is inductively heated by each lower coil element 3b, and the upper side surface coil element 3c The side portions of the object to be coated 201 are inductively heated by this. As a result, the to-be-coated object 201 which has a complicated shape can be heated uniformly, and coating of the to-be-coated object 201 can be dried efficiently.

  In this way, after the coating and drying on the small-sized substrate 201 is completed, the substrate 201 is carried out of the space for placement of the substrate 2c, and then the coating and drying operation for the substrate to be dried is prepared. .

  Next, the control performed by the controller 8 when the coating and drying on the object to be coated (large-sized object to be coated 101) is finished and the coating and drying on the object to be coated (small object to be coated 201) is performed next time The process will be described with reference to FIG.

  When this control process is started, it is determined in step 1 whether or not the information regarding the type of the object to be dried (for example, the object 201) is input from the operating device 9. If it is determined as NO in step 1, the process waits for an input from the operating device 9 in step 2 and returns to step 1. On the other hand, if YES is determined in the step 1, since the information on the object to be coated 201 is input from the operation device 9, the process proceeds to step 3, and the three-dimensional shape of the object to be coated 201 stored in the storage unit 8b. Get information.

  In the subsequent step 4, the three-dimensional shapes of the object to be coated and dried last time (the object to be coated 101) and the object to be coated 201 to be coated and dried this time are compared and It is determined whether it is necessary to change the positions of the coil elements 3a, the lower coil elements 3b, and the side coil elements 3c. If YES in step 4, the three-dimensional shape of the previous object to be coated (for example, the object to be coated 101) and the object to be coated 201 at this time are different, and each upper coil element 3a and each lower coil element 3b Since it is necessary to change the position of each side coil element 3c, the process proceeds to step 5.

  In step 5, a control signal is output to the motor 7c of each coil position changing mechanism 7, and the positions of the upper coil elements 3a, lower coil elements 3b and side coil elements 3c of the induction heating coil group 3 are coated The position is changed to a position corresponding to the three-dimensional shape of the object 201, and in the subsequent step 6, the loading of the object 201 into the object disposition space 2c is instructed.

  On the other hand, if the previous object to be coated is of the same type as the object to be coated 201 this time, it is necessary to change the positions of each upper coil element 3a, each lower coil element 3b, and each side portion coil element 3c. Because there is not, step 4 is determined as NO, and step 6 is executed.

  In the following step 7, the frequency, voltage, heating time and the like of the high frequency power supply 5 are set according to the amount of heat necessary to dry the object to be coated 201, and the process proceeds to step 8. In step 8, by outputting a control signal to the high frequency power source 5, a high frequency current according to the shape of the object to be coated 201 is supplied from the high frequency power source 5 to the induction heating coil group 3. Thus, induction heating using the induction heating coil group 3 is performed on the object to be coated 201.

  Thus, after induction heating for the heating time set for the object to be coated 201 is performed, the process proceeds to step 9. In step 9, an instruction to carry out the object to be coated 201 for which coating and drying have been completed is carried out from the object disposition space 2c. Then, after an instruction to carry out the object to be coated 201 is given, the process returns to step 1 and the control process described above is repeated.

  Thus, the coating drying device 1 according to the present embodiment changes the induction heating coil group 3, the coil supporting member 6 for supporting the induction heating coil group 3 on the base member 2, and the position of the coil supporting member 6 with respect to the base member 2. And a controller 8 which possesses three-dimensional shape information of the object to be coated and which gives movement information to the coil position changing mechanism 7, the controller 8 based on the three-dimensional shape information of the object to be coated By giving movement information to the coil position change mechanism 7, the position of the coil support member 6 relative to the base member 2 can be changed.

  The induction heating coil group 3 includes a plurality of upper coil elements 3a for induction heating the upper portion of the object, a plurality of lower coil elements 3b for induction heating the lower portion of the object, and side portions of the object It is comprised by the several side part coil element 3c which carries out induction heating.

  Thereby, each upper coil element 3a, each lower coil element 3b, and each side part coil element 3c which constitute induction heating coil group 3 can be made to approach a subject having a complicated shape. As a result, it is possible to properly heat a plurality of types of objects to be coated having different shapes, such as the objects to be coated 101, 201 etc., using the same induction heating coil group 3, and the coating of various objects to be coated is efficiently performed. Since drying can be performed, energy saving of the painting and drying operation can be realized.

  Further, the controller 8 includes a storage unit 8 b storing the three-dimensional shapes of a plurality of types of objects to be coated and coil element position information corresponding to the types of objects to be coated. Each upper coil of the induction heating coil group 3 The element 3a, each lower coil element 3b, and each side coil element 3c are moved in advance to a position corresponding to the three-dimensional shape of the object to be dried. Thereby, each upper coil element 3a of the induction heating coil group 3 and each lower coil, even when the three-dimensional shape of the object to be coated and dried this time is different from the three-dimensional shape of the object to be coated next The element 3b and each side surface coil element 3c are moved in advance to a position corresponding to the three-dimensional shape of the object to be coated and dried next time to rapidly perform induction heating on the next object to be coated be able to. Therefore, the time for the painting and drying process can be shortened.

  Further, since the coil position changing mechanism 7 is constituted by the driven gear 7a connected to the coil support member 6, the drive gear 7b meshing with the driven gear 7a, and the motor 7c rotating the drive gear 7b. The controller 8 controls the motor 7c based on the three-dimensional shape of the object to be coated, whereby the position of the coil support member 6 relative to the base member 2 can be changed, and the induction heating coil supported by the coil support member 6 The positions of the upper coil elements 3a, the lower coil elements 3b, and the side coil elements 3c of the group 3 can be easily changed.

  In the embodiment, the case where the position of the coil support member 6 with respect to the base member 2 is changed using the coil position change mechanism 7 including the driven gear 7a, the drive gear 7b, the motor 7c and the like is exemplified. For example, the coil position changing mechanism may be configured using a linear motion mechanism such as a linear motor or a link mechanism.

DESCRIPTION OF SYMBOLS 1 paint drying apparatus 2 base member 3 induction heating coil group 3a upper coil element 3b lower coil element 3c side surface coil element 6 coil support member 7 coil position change mechanism 7a driven gear 7b drive gear 7c motor 8 controller 8b memory unit 101 to be coated Object 201

Claims (4)

In a coating drying apparatus in which induction heating and drying are performed by arranging a substrate between induction heating coils supported by a base member,
The induction heating coil group arranged in parallel over a plurality of stages in the height direction and the lateral direction of the object to be coated;
A coil support member for supporting the induction heating coil group on the base member;
A coil position changing mechanism provided between the coil supporting member and the base member for changing the position of the coil supporting member with respect to the base member;
And a controller for possessing three-dimensional shape information of the object to be coated and for providing movement information to the coil position changing mechanism.   The induction heating coil group includes an upper coil element for induction heating the upper portion of the object, a lower coil element for induction heating the lower portion of the object, and a side portion for inductively heating the side portion of the object. The coating / drying apparatus according to claim 1, characterized by comprising a coil element.   The controller has a storage unit storing three-dimensional shapes of a plurality of types of objects to be coated and coil element position information corresponding to the plurality of types of objects to be coated; The coating / drying apparatus according to claim 1, wherein the coating / drying apparatus is previously moved to a position corresponding to a three-dimensional shape of the object.   The coil position changing mechanism comprises a driven gear connected to the coil support member, a drive gear meshing with the driven gear, and a motor for rotating the drive gear, and is based on the three-dimensional shape of the object to be coated The coating / drying apparatus according to claim 1, wherein the controller controls the motor to change the position of the coil support member relative to the base member.

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