KR102165439B1 - Fin tube supplying apparatus - Google Patents

Abstract

According to one aspect of the present invention, a fin tube supplying apparatus includes: an inflow transferring part moving a fin tube by using a plurality of inflow rollers; and a transfer supporting part arranged further forward than the inflow transferring part and supporting and transferring the fin tube, wherein the transfer supporting part includes: driving rollers; a continuous track wound on the driving rollers; and a plurality of rotation supporting members fixed to the continuous track and supporting the fin tube. Therefore, the fin tube supplying apparatus can move the fin tube at an exact speed.

Description

Fin tube supplying device {FIN TUBE SUPPLYING APPARATUS}

The present invention relates to a fin tube supply device, and more particularly, to a fin tube supply device capable of easily transporting the fin tube.

In general, a pin tube made of metal includes a hollow tube and a disk-shaped pin attached to the outer peripheral surface of the tube, and a coating is required to improve durability and acid resistance. Enamel coating, as one of these coating methods, has the advantage of excellent heat resistance and acid resistance, but has a disadvantage in that the coating process is difficult because high-temperature firing is required and a large chamber is required.

Therefore, conventionally, research has been made on a method for solving the above problem and coating an enamel. For example, Korean Patent Registration No. 0174438 (hereinafter, referred to as prior literature) discloses a method of enamel coating a metal tube. Specifically, the prior document discloses a technique of pre-treating a metal tube, coating it with enamel glaze, and then firing.

In addition, the prior literature is provided with a brush to ensure that the enamel glaze is evenly applied, but with this configuration alone, the liquid enamel glaze can be uniformly applied, but the thickness of the enamel coating layer for a specific area is controlled. It is impossible. In other words, there is a problem that it is impossible to protect the area with a high possibility of corrosion by making the enamel coating layer thicker.

In addition, since the prior literature requires a process of drying to form a coating layer in a state in which a liquid enamel glaze is applied, a lot of time is required in the production of finned tubes.

In addition, the prior document is provided with a roller for transferring the fin tube in the section of applying the enamel glaze to the fin tube and firing. Therefore, the enamel-coated fin tube causes friction with the roller before firing is completed. As such, the outer surface of the fin tube where friction occurs before the firing is completed has a problem in that the enamel coating layer is peeled off, which increases the possibility of corrosion, and the operation period is shortened, resulting in an excessive cost for replacement and maintenance.

In addition, the roller for transporting the fin tube moves while rotating the fin tube, according to which it is difficult to move the fin tube at an accurate speed.

The present invention is to solve the above problems, and provides a fin tube supply device capable of moving the fin tube at an accurate speed.

A fin tube supply device according to an aspect of the present invention is a device for introducing and discharging a fin tube into an application part for applying glaze powder to the fin tube, and an inlet conveying part for moving the fin tube using a plurality of inlet rollers, and the It is disposed further in front of the inflow transfer unit and includes a transfer support unit for transferring while supporting the fin tube, and the transfer support unit is fixed to the drive rollers and the caterpillar and the caterpillar wound around the drive rollers, It includes a plurality of rotational support members to support, and the fin tube includes a pin formed by being spirally connected to the outer circumferential surface, and the inlet roller rotates in contact with the pin to move the fin tube in the longitudinal direction of the fin tube. I can.

The rotational support member according to an aspect of the present invention includes a bracket fixed to the caterpillar and a plurality of first support rollers and a plurality of second support rollers rotatably installed on the bracket, and the first support roller It is disposed outside the second support roller, the second support roller may be disposed further below the first support roller.

The fin tube supply device according to an aspect of the present invention further comprises a crane for mounting the fin tube on the transfer support, the crane is a holder for gripping the fin tube, a transfer beam in which the holders are installed, and the transfer beam It includes a traveling unit for lifting and moving, the holder includes two cylinders arranged inclined to each other, two gripping links rotatably coupled to the cylinder and installed to cross each other, and a support pad coupled to the lower end of the gripping link And, the support pad may be made of a material having elasticity.

The inflow conveying unit according to an aspect of the present invention may include a first inflow roller whose outer circumferential surface is parallel to the longitudinal direction of the fin tube and a second inflow roller whose outer circumferential surface is inclined with respect to the longitudinal direction of the fin tube.

Further comprising a support for supporting the drive shaft installed on the first inlet roller according to an aspect of the present invention, a vibrator for generating vibration may be installed in the support.

A step groove is formed in the second inlet roller according to an aspect of the present invention, and an outer end of the pin of the fin tube may be inserted into the step groove.

The inlet conveying unit according to an aspect of the present invention includes a plurality of the second inlet rollers, a drive shaft is connected to the second inlet rollers, and each drive shaft may be disposed to be inclined with respect to the longitudinal direction of the fin tube. have.

The fin tube supply device according to an aspect of the present invention further comprises a discharge conveying part for discharging the fin tube discharging the fin tube from the application part spraying the glaze powder on the fin tube, the upper part of the discharge conveying part An upper pressing part for pressing the fin tube toward the lower side may be installed to prevent deformation of the fin tube.

The upper pressing part according to an aspect of the present invention includes support plates that are erected and spaced apart from each other with the pin tube therebetween, two roller supports that are slidably installed in the height direction of the support plates, and can be rotated on the roller support It may include a pressure roller installed in contact with the upper portion of the pin tube, and an elastic member installed on the roller support to pull the roller support downward.

The fin tube supply device according to an aspect of the present invention further includes a guide support part installed at the rear of the discharge transfer part to guide the movement of the fin tube, and the guide support part has an outer circumferential surface parallel to the length direction of the fin tube. A first guide roller and a second guide roller having an outer circumferential surface obliquely disposed with respect to the longitudinal direction of the fin tube, and a first stepped groove and a second stepped groove are formed on the outer circumference of the second guide roller, and the first An outer end of the pin of the fin tube may be inserted into the stepped groove and the second stepped groove, respectively.

According to an aspect of the present invention, since the transport support portion includes a plurality of rotational support members fixed to the caterpillar and the caterpillar to support the fin tube, the fin tube can be moved at an accurate speed.

1 is a view schematically showing a fin tube coating apparatus according to an embodiment of the present invention.
2 is a diagram schematically illustrating a heating unit, an application unit, and a preheating unit according to an embodiment of the present invention.
3 is a schematic view showing an application unit according to an embodiment of the present invention.
4 is a cross-sectional view of an application unit according to an embodiment of the present invention as viewed from the side.
5 is a perspective view showing a transfer support according to an embodiment of the present invention.
6 is a plan view from above of an inflow transfer unit according to an embodiment of the present invention.
7 is a plan view from above of a discharge transfer unit according to an embodiment of the present invention.
8 is a perspective view showing an upper pressing part according to an embodiment of the present invention.
9 is a plan view from above of a guide support according to an embodiment of the present invention.
10 is a front view as viewed from the front of the guide support according to an embodiment of the present invention.
11 is a view showing a holder according to another embodiment of the present invention.
12 is a view showing a support and an inlet roller according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the description of the embodiments, the same reference numerals are assigned to the same components.

In adding reference numerals to constituent elements in each drawing, it should be noted that the same constituent elements have the same reference numerals as possible even if they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the subject matter of the present invention, a detailed description thereof will be omitted.

In addition, in describing the constituent elements of the present invention, terms such as first, second, A, B, (a), (b) may be used. These terms are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected or connected to that other component, but another component between each component It should be understood that elements may be “connected”, “coupled” or “connected”.

In addition, when a component such as a layer, film, region, or plate is said to be "on" or "on" another component, it is not only directly above another component, but also when another component is in the middle. It should be understood that it can be included. Conversely, it should be understood that when an element is "directly above" another part, it means that there is no other part in the middle.

1 is a view schematically showing a fin tube coating apparatus according to an embodiment of the present invention, Figure 2 is a view schematically showing a heating unit, an application unit, and a preheating unit according to an embodiment of the present invention. 3 is a block diagram schematically showing an applicator according to an embodiment of the present invention, and Fig. 4 is a cross-sectional view of an applicator according to an embodiment of the present invention viewed from the side.

1 to 4, the fin tube supply device 10 according to an embodiment of the present invention includes a preheating unit 110, a heating unit 130, an application unit 110, and a transfer support unit 200 , Inlet transfer part 300, discharge transfer part 400, may include an upper pressing part 470, and a guide support (500). The preheating unit 110, the heating unit 130, and the application unit 110 form a coating unit.

Here, the fin tube 20 has a structure including a tube 21 made of a hollow tube and a fin 22 formed by spirally connecting the outer peripheral surface of the tube 21. The tube 21 may be formed as a circular tube, and the fin 22 may be formed in a plate shape protruding from the outer peripheral surface of the tube 21.

The fin tube supply device 10 is a device that forms a glassy film on the outer surface of the fin tube 20 in order to improve the acid resistance and corrosion resistance of the fin tube 20.

The heating unit 130 may form a high frequency magnetic field to heat the moving fin tube 20 by high frequency induction heating. Specifically, high-frequency induction heating uses the principle of generating an eddy current that prevents the change of the magnetic field when the magnetic field applied to the metal conductor inside the magnetic field is changed. The eddy current is a current that resists changes in the magnetic field, and interferes with the movement of the metal conductor moving in the magnetic field, and the metal conductor is heated as the eddy current is lost.

The preheating unit 110 is installed in front of the application unit 110 and may include a preheating chamber 114 and a preheating coil 112. The fin tube 20 moves through the preheating chamber 114, and the preheating coil 112 may be installed to surround the fin tube 20. The preheating unit 110 may heat the fin tube 20 to 800°C to 860°C.

The heating unit 130 is installed behind the application unit 110 and may include a heating chamber 134 and a heating coil 132. The fin tube 20 moves through the heating chamber 134, and the heating coil 132 may be installed to surround the fin tube 20. The heating unit 130 may heat the fin tube 20 to 800°C to 900°C.

The coating unit 110 is located between the heating unit 130 and the preheating unit 110 and sprays glaze powder on the fin tube 20 to form a glassy film on the outer surface of the fin tube 20. The coating unit 110 may spray glaze powder made of pure frit.

The application unit 110 may include an application chamber 121, a spray nozzle 126, a collection container 123, a pump 124, and a storage container 125. The coating chamber 121 is disposed adjacent to the preheating unit 110, and the fin tube 20 heated by the preheating unit 110 passes through the application chamber 121 and moves.

The spray nozzle 126 is inserted into the coating chamber 121 and is installed adjacent to the inlet side through which the fin tube 20 is introduced. The spray nozzle 126 extends downward, but protrudes obliquely toward the front based on the moving direction of the fin tube 20 so as to spray the glaze powder forward. When the glaze powder is sprayed, some glaze powder contacts the surface of the heated fin tube 20 and is fused, and the remaining glaze moves to the lower portion of the application chamber 121.

The fin tube 20 moves while rotating, and since the glaze powder is continuously sprayed while rotating, the glaze powder can be evenly supplied to the fin tube 20. In addition, when the spray nozzle 126 protrudes obliquely toward the front, a coating layer having a uniform thickness may be formed on the fin tube 20.

The collection container 123 is installed under the application chamber 121 to collect the glaze powder sprayed from the spray nozzle 126, and the glaze powder collected in the collection container 123 is sprayed again by the pump 124 You can move to (126). The glaze powder made of pure frit is stored in the storage container 125, and the glaze powder stored in the storage container 125 may be supplied to the spray nozzle 126. That is, the glaze may be supplied from the collection container 123 and the storage container 125 to the spray nozzle 126.

5 is a perspective view showing a transfer support according to an embodiment of the present invention.

Referring to FIGS. 1 and 5, the transfer support 200 is disposed in front of the inflow transfer part 300 to move while supporting the fin tube 20. The transfer support 200 includes two driving rollers 201 and 202, a caterpillar 230 wound around the driving rollers 201 and 202, and a plurality of rotational support members 210 fixed to the caterpillar 230. do.

The driving rollers 201 and 202 are spaced apart in the longitudinal direction of the fin tube 21 and the caterpillar 230 is moved by the driving rollers 201 and 202. Here, the caterpillar 230 may be made of a belt or a chain.

A plurality of rotational support members 210 are installed on the caterpillar 230, and the rotational support members 210 are spaced apart in the longitudinal direction of the caterpillar 230. The rotation support member 210 contacts the lower portion of the fin tube 20 to support the fin tube 20 and moves together with the fin tube 20 and the caterpillar 230.

The rotation support member 210 includes a bracket 211 fixed to the caterpillar 230 and a plurality of first support rollers 214 and a plurality of second support rollers 215 rotatably installed on the bracket 211, and It may include a fixing protrusion 213 protruding downward from the bracket 211 and fixed to the caterpillar 230.

The bracket 211 is disposed in parallel with the front plate 211a and the front plate 211a and connects the rear plate 211b facing the front plate 211a and the front plate 211a and the rear plate 211b. It includes a plate 211c, and the front plate 211a and the rear plate 211b have a structure in which both side ends in the width direction protrude more upward than the center.

The rotation support member 210 may include two first support rollers 214 and two second support rollers 215. However, the present invention is not limited thereto. The first support roller 214 is disposed outside the second support roller 215 to support the fin tube 20 so that it does not deviate laterally. The first support roller 214 may be positioned higher than the second support roller 215. The second support roller 215 may be disposed further below the first support roller 214 to support the load of the fin tube.

When the rotation support member 210 having the plurality of first support rollers 214 and the second support rollers 215 is installed to move by the caterpillar 230 as in this embodiment, the rotating fin tube 20 It can be transported more easily.

6 is a plan view from above of an inflow transfer unit according to an embodiment of the present invention.

Referring to FIGS. 1 and 6, the inflow transfer part 300 is disposed behind the transfer support part 200 to move the fin tube 20. In addition, the inlet transfer unit 300 is disposed in front of the preheating unit to move the fin tube 20 to the preheating unit 110.

The fin tube 20 is supported by the inlet transfer unit 300 and the discharge transfer unit 400, and a separate support member is not installed between the preheating unit 110, the application unit 110, and the heating unit 130. Does not. Accordingly, it is possible to prevent the non-hardened glaze powder from being damaged by contacting the roller.

The inflow conveying unit 300 includes a plurality of first inflow rollers 310 whose outer circumferential surface is parallel to the longitudinal direction of the fin tube 20 and a plurality of second inflow rollers 340 whose outer circumferential surface is obliquely disposed with respect to the longitudinal direction of the fin tube. It may include. The first inlet roller 310 and the second inlet roller 340 are disposed under the fin tube 20 to rotate the fin tube 20 while supporting the load of the fin tube 20. The first inlet rollers 310 and the second inlet rollers 340 are spaced apart in the radial direction of the fin tube 20 with the fin tube 20 interposed therebetween.

The drive shaft of the first inlet roller 310 is disposed parallel to the longitudinal direction of the fin tube 20, and a plurality of first inlet rollers 310 may be installed on one drive shaft 330. In addition, a driven sprocket 313 is installed on the driving shaft 330, a driving sprocket 321 is installed on the driving motor 320, and the driving sprocket 321 and the driving sprocket 313 are connected and installed via the chain 332. Can be.

When the outer circumferential surface of the second inlet roller 340 is disposed to be inclined with respect to the longitudinal direction of the fin tube 20, the contact area between the second inlet roller 340 and the fin tube 20 is reduced. The second inlet roller 340 is in contact with a smaller number of pins 22 than the first inlet roller 310, and the second inlet roller 340 may contact one or two pins 22, The first inlet roller 310 may contact three or more pins. Accordingly, the second inlet roller 340 may rotate the fin tube 20 by concentrating the force in a small contact area.

In addition, a step groove 341 is formed in the second inlet roller 340, and an outer end of the pin 22 may be inserted into the step groove 341. A front protrusion 342 protruding forward is formed at the front end of the second inlet roller 340, and a step groove 341 is formed at the lower end of the front protrusion 342. When the pin 22 is inserted into the stepped groove 341, the second inlet roller 340 is stably coupled with the fin tube 20 to apply a rotational force to the fin tube 20, so that the second inlet roller 340 and the pin The frictional force between the tubes 20 is increased, and a slip between the second inlet roller 340 and the fin tube 20 can be prevented.

The inlet transfer unit 300 includes a plurality of second inlet rollers 340, and drive shafts 351, 352, 353 are connected to the second inlet rollers 340, respectively, and respective drive shafts 351, 352, 353 ) Is disposed to be inclined with respect to the longitudinal direction of the fin tube (20). In addition, the drive shafts 351, 352, and 353 may be spaced apart and disposed parallel to each other.

A first drive sprocket 371 is installed on one drive shaft 351, and the first drive sprocket 371 connects the motor sprocket 362 and the chain 356 installed on the drive motor 360 via the chain 356. It is connected through a medium to receive power.

In addition, a second driving sprocket 372 spaced apart from the first driving sprocket 371 in the length direction of the driving shaft 351 is installed on one driving shaft 351 on which the first driving sprocket 371 is installed, and the second driving sprocket The 372 may be connected to the first driven sprocket 373 installed on the other driving shaft 352 adjacent through the chain 356 to transmit power to the other driving shaft 352. In addition, a third drive sprocket 374 is installed on the other drive shaft 352, and the third drive sprocket 374 is a second driven sprocket 375 installed on another drive shaft 353 adjacent to the chain 356 as a medium. ) And can transmit power to another drive shaft 353.

Accordingly, power can be transmitted to the three drive shafts 351, 352, and 353 that are spaced apart from each other but arranged in parallel using one drive motor 360, and accordingly, the three second inlet rollers 340 have the same speed. Can be rotated.

As in the present embodiment, the inflow transfer part 300 is a first inflow roller 310 parallel to the longitudinal direction of the fin tube 20 and a second inflow roller whose outer circumferential surface is inclined with respect to the longitudinal direction of the fin tube 20 ( Including 340, the first inlet roller 310 stably supports the load of the fin tube 20, and the second inlet roller 340 stably transmits the rotational force to the fin tube 20, so that the fin tube 20 ) Can be moved at a preset speed while rotating stably. If the moving speed of the fin tube 20 is not constant, the time that the fin tube 20 stays in the application unit 110 changes, so that the thickness of the enamel coated on the fin tube 20 may not be uniform. . However, according to the present embodiment, the fin tube 20 may be moved at a uniform speed to coat an enamel having a uniform thickness.

7 is a plan view from above of a discharge transfer unit according to an embodiment of the present invention.

Referring to FIGS. 1 and 7, the discharge transfer unit 400 is disposed behind the heating unit 130 to discharge the fin tube 20 from the heating unit 130. The discharge transfer unit 400 includes a plurality of first discharge rollers 410 whose outer circumferential surface is parallel to the longitudinal direction of the fin tube 20 and a plurality of second discharge rollers whose outer circumferential surface is obliquely disposed with respect to the longitudinal direction of the fin tube 20 (440) may be included. The first discharge roller 410 and the second discharge roller 440 are disposed under the fin tube 20 to rotate the fin tube 20 while supporting the load of the fin tube 20. The first inlet rollers 310 and the second inlet rollers 340 are spaced apart from each other with the fin tube 20 interposed therebetween.

The second discharge roller 440 may be installed to be inclined in a direction opposite to the second inlet roller 340 based on the longitudinal direction of the fin tube 20. In addition, the second inlet roller 340 is disposed on one side of the fin tube 20, and the second discharge roller 440 is disposed on the other side with the fin tube 20 interposed therebetween. The second discharge roller 440 is spaced apart from the second inlet roller 340 in the longitudinal direction of the fin tube 20 and is spaced apart in the radial direction of the fin tube 20. That is, when the second inlet roller 340 is disposed on the left side of the fin tube 20, the second discharge roller 440 may be disposed on the right side of the fin tube 20. Accordingly, the pin tube 20 is rotated by pressing the pin tube 20 on both sides of the pin tube 20 so that the pin tube 20 can be transferred while rotating more easily.

The drive shaft 430 of the first discharge roller 410 is disposed parallel to the longitudinal direction of the fin tube 20, and a plurality of first discharge rollers 410 may be installed on one drive shaft 430. In addition, the driven sprocket 413 is installed on the drive shaft 430, and the drive sprocket 421 is frosted on the drive motor 420, so that the drive sprocket 421 and the driven sprocket 413 may be connected via a chain 432 as a medium. .

When the outer circumferential surface of the second discharge roller 440 is disposed to be inclined with respect to the longitudinal direction of the fin tube 20, the contact area between the second discharge roller 440 and the fin tube 20 decreases, and accordingly, the second discharge roller ( 440 may rotate the fin tube 20 by concentrating the force with a small contact area.

In addition, a step groove 441 is formed in the second discharge roller 440, and an outer end of the pin 22 may be inserted into the step groove 441. The second discharge roller 440 includes a front protrusion 442 protruding forward, and a step groove 441 is formed at a lower end of the front protrusion 442.

The discharge transfer unit 400 includes a plurality of second discharge rollers 440, and drive shafts 451 and 452 are connected to the second discharge rollers 440, respectively, and each of the drive shafts 451 and 452 is a pin tube. It is arranged obliquely with respect to the longitudinal direction of (20). In addition, the drive shafts 451 and 452 may be spaced apart from each other and disposed parallel to each other. The drive shafts 451 and 452 may receive power through the chain 456 from the drive motor 460 or neighboring drive shafts 451 and 452.

8 is a perspective view showing an upper pressing part according to an embodiment of the present invention.

Referring to FIGS. 7 and 8, an upper pressing part 470 is installed on the discharge transfer part 400 to press the fin tube 20 downward to prevent deformation of the fin tube 20. The upper pressing part 470 includes a roller support 472 connecting the two support plates 471 and the support plates 471 installed upright, and a pressing roller 473 and a roller support 472 rotatably installed on the roller support 472 It may include an elastic member 475 pulling the.

The upper pressurization unit 470 is disposed above the discharge transfer unit 400 to press the fin tube 20 downward, and the fin tube 20 is supported by the discharge transfer unit 400 and the upper pressurization unit 470 Deformation can be prevented.

The heated fin tube 20 can be easily deformed. If the roller is disposed only at the bottom, the fin tube 20 may be deformed because it is pressed in only one direction by its own weight. However, when the upper pressing part 470 is installed, it is pressurized in both directions by the discharge conveying part 400 and the upper pressing part 470 to prevent deformation of the fin tube 20.

The support plate 471 is spaced apart with the fin tube 20 interposed therebetween and has a long hole 471a connected in the height direction. The long hole 471a may have a structure in which the upper end is closed, and may have a structure in which the upper end is open. The roller support 472 is made of a rod inserted into the long hole 471a to be slidably installed in the height direction of the support plate 471. The pressure roller 473 is rotatably installed on the roller support 472 and rotates in contact with the upper portion of the pin tube 20, and two pressure rollers 473 may be installed on the roller support 472.

The elastic member 475 may be formed of a coil spring, and is installed on the roller support 472 to pull the roller support 472 downward. A fixing pin 476 coupled to the lower end of the elastic member 475 may be installed on the floor. The elastic member 475 imparts an elastic force so that the pressure roller 473 can pressurize as much as a stress acting between the discharge and transfer unit 400 by the self weight of the fin tube 20.

On the other hand, the guide support part 500 is disposed behind the heating part 130 and the discharge transfer part 400 to guide the movement of the fin tube 20. The guide support 500 includes a first guide roller 510 whose outer circumferential surface is parallel to the longitudinal direction of the fin tube 20 and a second guide roller 520 whose outer circumferential surface is obliquely disposed with respect to the longitudinal direction of the fin tube 20. Include. Here, separate power is not provided to the first guide roller 510 and the second guide roller 520, and the first guide roller 510 and the second guide roller 520 can be rotated by the pin tube 20. have.

A first step groove 521 and a second step groove 522 are formed on the outer periphery of the second guide roller 520, and a pin 22 is formed in the first step groove 521 and the second step groove 522, respectively. The outer end of the can be inserted. Accordingly, the second guide roller 520 can rotate in contact with the two pins 22, and the pin tube 20 is stably moved by the first guide roller 510 and the second guide roller 520. I can.

10 is a view schematically showing a crane according to another embodiment of the present invention, Figure 11 is a view showing a holder according to another embodiment of the present invention.

Referring to FIGS. 10 and 11, the fin tube supply device according to the present embodiment may further include a crane 600 for mounting the fin tube on the transfer support. The crane 600 may include a holder 620 for gripping the fin tube, a transfer beam 630 in which the holders 620 are installed, and a traveling unit 610 for lifting and moving the transfer beam 630.

The running part 610 is installed on the plurality of support beams 612 and the support beams 612 connected in a direction crossing the pin tube, and is installed on the transfer cart 613 and the transfer cart 613 to move, and the wire 615 ) May include a winder 614 and a hook 617 coupled to the wire 615. The driving unit 610 may have a structure similar to that of a general overhead crane.

The transfer beam 630 is formed to be connected in the longitudinal direction of the fin tube and is coupled to the hook 617 to be moved by the driving unit 610. A plurality of holders 620 are installed on the transfer beam 630, and the holders 620 may be spaced apart from each other in the longitudinal direction of the transfer beam 630.

The holder 620 includes two cylinders 621 fixed to the transfer beam 630, a gripping link 625 rotatably coupled to the cylinder 621, and a support pad 626 coupled to the lower end of the gripping link 625. ) Can be included. The cylinder 621 is made to be expandable and contracted by hydraulic or pneumatic, and the two cylinders 621 are disposed to be inclined to each other at a preset angle.

The holder 620 includes two gripping links 625, and an upper end of the gripping link 625 is rotatably coupled to the cylinder 621, respectively. The gripping links 625 may be installed to intersect each other and coupled to be rotatable to be disposed in an approximately X-shape. The support pad 626 is coupled to the lower end of the gripping link 625 and may be made of rubber, silicone, or synthetic resin having elasticity.

As described above, since the crane 600 according to the present embodiment includes the holder 620, the space between the support pads 626 is increased or decreased by the cylinder 621, so that the fin tube can be stably supported and moved. In addition, since the support pad 626 having elasticity is installed, it is possible to prevent the fin tube from being damaged during the transfer process.

12 is a view showing a support and an inlet roller according to another embodiment of the present invention.

The fin tube supply device according to the present embodiment further includes a support 700 for supporting the first inlet roller 310, and the support 700 is installed on the drive shaft 330 installed on the first inlet roller 310 The drive shaft 330 may be supported. The support 700 may be fixed on the floor or a pedestal 750 installed on the floor, and a bearing 710 for reducing friction may be installed inside the support 700. In addition, a vibrator 720 for generating vibration may be installed on the support 700. The vibrator 720 may be formed of an ultrasonic vibrator that generates ultrasonic vibration. The vibrator may be installed below the support 700 as well as installed on the upper part of the support 700.

In this way, when the vibrator 720 is installed on the support 700, vibration may be transmitted to the fin tube, and such vibration may significantly reduce the occurrence of defects in the coating layer by allowing bubbles to be easily discharged during coating.

In the above, the present invention has been exemplarily described, and those of ordinary skill in the technical field to which the present invention pertains will be able to make various modifications without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present specification are not intended to limit the present invention, but to explain the present invention, and the spirit and scope of the present invention are not limited by these embodiments. The scope of protection of the present invention should be interpreted by the following claims, and all technologies within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: enamel coating device 20: fin tube
21: tube 22: pin
110: preheating unit 120: coating unit
130: heating part 200: transfer support
201, 202: drive roller 210: rotation support member
211: bracket 213: fixing protrusion
214: first support roller 215: second support roller
230: caterpillar 300: inlet transfer unit
310: first inlet roller 340: second inlet roller
400: discharge transfer unit 410: first discharge roller
440: second discharge roller 470: upper pressing portion
471: support plate 472: roller support
473: pressure roller 475: elastic member
500: guide support 510: first guide roller
520: second guide roller 600: crane
610: driving unit 611: rail
612: support beam 613: transfer cart
614: winder 615: wire
617: hook 620: holder
621: cylinder 625: grip link
626: support pad 630: transfer beam
700: support 710: bearing
720: oscillator

Claims (10)

In the fin tube supply device,
An inlet transfer unit for moving the fin tube using a plurality of inlet rollers; And
A transfer support portion disposed in front of the inlet transfer portion and transferring while supporting the fin tube;
Including,
The transfer support includes driving rollers, a caterpillar wound around the driving rollers, and a plurality of rotational support members fixed to the caterpillar and supporting the fin tube,
The fin tube includes a pin formed by spirally connecting the outer circumferential surface,
The inlet roller is a fin tube supply device, characterized in that while rotating in contact with the pin to move the fin tube in the longitudinal direction of the fin tube. The method of claim 1,
The rotation support member includes a bracket fixed to the caterpillar and a plurality of first support rollers and a plurality of second support rollers rotatably installed on the bracket,
The first support roller is disposed outside the second support roller, the second support roller is a fin tube supply device, characterized in that disposed further lower than the first support roller. The method of claim 1,
Further comprising a crane for mounting the fin tube on the transfer support,
The crane includes a holder for holding the pin tube, a transfer beam in which the holders are installed, and a traveling unit for lifting and moving the transfer beam,
The holder includes two cylinders disposed obliquely to each other, two gripping links rotatably coupled to the cylinder and installed to cross each other, and a support pad coupled to a lower end of the gripping link,
The fin tube supply device, characterized in that the support pad is made of a material having elasticity. The method of claim 1,
The inlet conveying unit comprises a first inlet roller whose outer circumferential surface is parallel to the longitudinal direction of the fin tube and a second inlet roller whose outer circumferential surface is inclined with respect to the longitudinal direction of the fin tube. The method of claim 4,
And a support for supporting a drive shaft installed on the first inlet roller, wherein a vibrator for generating vibration is installed on the support. The method of claim 4,
A stepped groove is formed in the second inlet roller, and an outer end of the pin of the fin tube is inserted into the stepped groove. The method of claim 4,
The inflow conveying unit includes a plurality of the second inflow rollers,
A drive shaft is connected to the second inlet rollers, and each drive shaft is disposed to be inclined with respect to the longitudinal direction of the fin tube. The method of claim 1,
Further comprising a discharge transfer part for discharging the fin tube discharging the fin tube from the application part for spraying the glaze powder on the fin tube,
A fin tube supply device provided with an upper pressurizing part pressing the fin tube toward a lower portion to prevent deformation of the fin tube at an upper portion of the discharge transfer part. The method of claim 8,
The upper pressing part,
Support plates that are erected and installed and spaced apart with the pin tube interposed therebetween,
Two roller supports installed to be slidably installed in the height direction of the support plate,
A pressing roller rotatably installed on the roller support and in contact with the upper portion of the pin tube,
Pin tube supply device comprising an elastic member installed on the roller support to pull the roller support downward. The method of claim 8,
It is installed at the rear of the discharge conveying unit further comprises a guide support to guide the movement of the pin tube,
The guide support includes a first guide roller whose outer circumferential surface is parallel to the longitudinal direction of the pin tube and a second guide roller whose outer circumferential surface is obliquely disposed with respect to the longitudinal direction of the fin tube,
A fin tube, characterized in that a first step groove and a second step groove are formed on an outer periphery of the second guide roller, and an outer end of the pin of the fin tube is inserted into the first step groove and the second step groove, respectively. Feeding device.

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