KR102118633B1 - Painting product dryer - Google Patents

Abstract

The present invention relates to a drying device for a coating product that can maintain a constant drying quality and prevent heat loss by removing a blind spot where a non-drying area occurs due to uniform heat transfer regardless of the number or area of objects to be dried. , More specifically, a drying booth in which first, second, third, and fourth heating units are installed, a drying line unit to which the object to be dried is moved for drying, and an object to be dried to remove a blind spot of heat transfer to the object to be dried. It consists of an auxiliary drying unit that moves together and dissipates heat auxiliaryly; It has the effect of transferring the heat of drying to the central portion of the object to be continuously moved by the locking method.

Description

Painting product dryer{Painting product dryer}

The present invention relates to an apparatus for drying a coating, and more specifically, to improve heat transfer and heat efficiency of a booth evenly regardless of the number or area of objects to be moved along a belt at regular intervals to complete a car or various coatings. It relates to a coating product drying apparatus for drying a product.

As a general painting booth, a dry baffle painting booth is known. This baffle-type paint booth is formed in a rectangular box shape with an open front, and a baffle plate as a first filter is installed and installed deep inside the box-shaped booth body. Two filters are arranged and an exhaust chamber is formed behind the second filter. Moreover, an exhaust blower is attached to the upper portion of the exhaust chamber, and air in the booth body is exhausted through the exhaust chamber, the baffle plate, and the second filter by the exhaust operation of the exhaust blower.

When painting by spraying paint from a spray gun in the booth body, the paint mist sprayed from the spray paint gun and dissipated in the booth body is baffle plate (first filter) and second filter. Through-suction

By collecting paint mist, it is to prevent scattering of paint mist. And, in the form of a conventional painting booth, a vortex chamber is installed in the booth, a vortex is generated in the exhaust from the vortex chamber, and the vortex separates air and paint mist, and the separated paint mist is collected in a water tank. There is a venturi type booth.

And, as another type, an oil circulation type paint booth is also known.

By the way, for example, a sheet metal work, such as an exterior panel of a motor vehicle, is performed, and the painting work is necessarily performed. In addition, as the size of the panel on which the painting is performed, 70 to 80% of the entire work panel is composed of 1 to 2 sheets.

A drying device is installed to dry the coated paint within a short time after performing the painting operation in the coating booth.

The drying device installed in the conventional coating booth mainly adopts a hot air drying method using a hot air boiler using oil as a fuel.

In the conventional hot air drying method as described above, there is a contact heat drying method in which heated hot air is supplied into the coating booth and convective action of the hot air causes direct contact with the paint coated on the vehicle to be dried.

This hot air drying method has low heat efficiency due to high heat loss, and the temperature distribution due to convection is not uniform, so that the paint applied to the body of the car does not dry uniformly, resulting in a longer drying time and a pinhole phenomenon. There was a problem.

In addition, it has been pointed out as a problem that when the drying time becomes longer, the operation time of the hot air boiler becomes longer, which requires a lot of fuel, and accordingly, the operating cost of the drying device of the coating booth becomes high.

As a method for solving the problems in the hot air welding method using the hot air boiler as described above, the inventor of the present invention

Therefore, there has been proposed a coating drying device using a far infrared heater (halogen lamp) of Utility Model Registration No. 386028. In the far infrared ray heater coating drying device, in terms of thermal efficiency or reduction of operating cost, a drying device using a hot air boiler is preferred. Although it provides excellent advantages, it may not only result in the deterioration of the painting quality due to the residual of fine dust generated during painting, but also the risk of fire, etc., due to the combustible gas flowing in the booth and the evaporation gas generated during drying. There was a problem.

In addition, paints (paints) for automobile painting are usually mixed with a suitable diluent and diluted with a viscosity that allows easy spraying. Since the diluents are mainly used thinners with high volatility and flammability, paint drying After the painting work is performed in the water, the infrared heater must be operated after removing the thinner gas remaining in the booth before starting the drying work. In the prior art, the paint drying booth using an infrared heater convects the air in the booth. Since only the circulation fan for circulating is installed and the device for discharging residual gas in the booth is not installed, fire due to residual gas may occur when the infrared heater is operated to perform the drying operation. In addition, it was pointed out as a problem that if the evaporation gas generated during the drying process of the paint applied to the car body is not removed and accumulates in the booth, a greater explosion risk may occur than a fire.

The painting of the vehicle is performed by spraying a paint of a desired color and depositing the paint on the outer surface of the vehicle body and drying it.

In addition, in the drying booth in which the paint drying product is made of a single piece and moves along the conveyor belt, even if heat is irradiated from the upper and left and right sides, drying of the drying object located inside is not smooth, and both ends of the booth are open, so heat loss is lost. There was a problem that occurred.

Due to this, the uniformity of the quality of the coating can be maintained due to the uniform heat transfer over the entire area of the object to be dried, and there is an urgent need for a coating and drying apparatus that minimizes heat loss on the inside or both ends of the booth.

Registration No. 20-0311842 (Energy-saving Far Infrared Coating Drying Device) Registration No. 20-0312603 (Infrared interior paint drying room device) Registration No. 10-0678654 (Auto body paint drying booth using infrared heater)

The present invention has been made to solve the above problems, and has an object to enable the transfer of drying heat to a central portion of a drying object continuously moving in a locking method.

The present invention is to enlarge the heat transfer area by placing an auxiliary heating unit between drying objects to be moved for drying.

The present invention is intended to minimize the influence of movement and interference by folding when the heat irradiation is completed after being positioned in an automated manner between drying objects moving the auxiliary heating unit.

The present invention is to enable the heating member to be selectively installed on the link plate so that it can be variously adjusted according to the area of the drying target.

The present invention is to prevent heat loss from being generated outside by installing air screens at both ends of the drying booth.

The apparatus for drying a painted product according to an embodiment of the present invention includes a drying booth in which a first, second, third, and fourth heating unit is formed on the ceiling, on both side walls, and on the floor of the coating drying apparatus for drying the coating of the object to be dried. A drying line formed by a drying wire in which a plurality of drying hooks rotating through the inside of the booth and hanging objects to be dried are connected at equal intervals, rotating around the both side frames of the drying booth and positioned between the drying hooks Provided is a drying device for a painted product, characterized in that it constitutes an auxiliary drying unit having an auxiliary heating element.

In addition, the auxiliary drying unit is coupled to both sides of the link, the link installed at equal intervals on the outer surface of the auxiliary belt, the driving belt and the driven pulley installed along the driven pulley spaced apart from both ends of the side frame of the drying booth. An auxiliary heating element to provide a coating product drying apparatus comprising a guide installed along the periphery of both side frames so as to guide the link so that the link is opened inside the drying booth and folded outside.

In addition, the link is a connection end connected to the auxiliary belt, the first and second links connected to the connecting end to be rotated, the third and fourth links to be connected to the first and second links to be rotated, respectively, and the third and fourth links It provides a drying device for a painted product, characterized in that the end of the link is connected and a roller end is moved along the guide.

In addition, the guide extends to the first inclined portion and the first inclined portion located at the inlet side of the drying booth where the object to be dried flows in such a way that the link is spread out in a strip shape installed at both ends of the side frame of the drying booth. A first horizontal portion positioned horizontally along the inside of the drying booth, a second inclined portion extending to the first horizontal portion and positioned on the volleyball side of the drying booth where the object to be dried is folded so that the link is folded, the second slope A second vertical portion extending to the portion and moving the link to the outside of the drying booth, a second horizontal portion extending to the second vertical portion and horizontally located along the outside of the drying booth, and a link extending to the second horizontal portion It provides a drying device for a coating product, characterized in that the first vertical portion that moves to the inner side of the drying booth so as to extend with the first inclined portion.

Here, the first inclined portion, the first horizontal portion, and the second inclined portion of the link are the first vertical portion, the second horizontal portion, and the second vertical portion of the link spaced apart from the side frame of the drying booth, the second vertical portion and the side frame of the drying booth. It provides a drying device for a coating product characterized in that it is configured rather than the outer separation distance.

In addition, the roof frame and the floor frame located on the inlet side of the drying booth into which the drying object is introduced and the volleyball side of the drying booth through which the drying object is discharged are respectively configured with air curtains preventing internal heat loss of the drying booth. It provides a drying device for painted products.

According to an embodiment of the present invention, there is an effect that can transmit the heat of drying to the central portion of the object to be continuously moved in a locking manner.

In addition, there is an effect of expanding the heat transfer area by positioning the auxiliary heating unit between the moving objects to be dried.

In addition, it is effective to minimize the effect of movement and interference by folding when the heat irradiation is completed after being positioned in an automated manner between the drying objects moving the auxiliary heating unit.

In addition, since the heating member can be selectively installed on the link plate, there is an effect that it can be variously adjusted according to the area of the drying target.

In addition, air screens are installed at both ends of the drying booth to prevent heat loss from occurring to the outside.

1 is a conceptual configuration front view of a coating product drying apparatus according to the present invention,
Figure 2 is a conceptual configuration cross-sectional view of a drying device for a painted product according to the present invention,
3 is a plan view of a drying line part and an auxiliary drying part of a coating product drying apparatus according to the present invention;
Figure 4 is an enlarged plan view of the link of the coating product drying apparatus according to the present invention,
5 is a plan view showing the distance between the side frame of the drying booth and the guide located on the inside and outside of the drying booth,
Figure 6 is a partial perspective view of the air curtain is installed in the drying booth,
7 is a plan view showing the operation of the link moving along the guide,
8 is a partial excerpt showing a form of a link moving along each section of the guide.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. The same reference numerals are used for similar parts throughout the specification.

1 to 6, when the configuration of the present invention is described with reference to the accompanying drawings, the present invention relates to a coating drying apparatus for drying a coating of a drying object, the first, second, third, and fourth heating units (11)(12)(13)(14) installed drying booth (10), drying line part (20) for moving the drying object to be dried and removing the blind spot of heat transfer to the drying object To this end, the drying device 100 is constituted by an auxiliary drying unit 30 that moves with the object to be dried and dissipates heat auxiliaryly.

The drying booth 10 forms first, second, third, and fourth heating units 11, 12, 13, and 14 on the ceiling, on both side walls, and on the floor, respectively. It is installed on the bottom of the roof frame 16, the second heating unit 12 is installed on the side frame 15 in a pair, and the fourth heating unit 14 is installed on the bottom frame 17.

Among the first, second, third, and fourth heating units 11, 12, 13, and 14, 1,2,3 heating units 11, 12, 13 are, for example, far infrared heaters (halogen lamps). When configured to generate heat by using, the fourth heating unit 14 may be configured to generate heat using a hot air fan.

The drying line 20 rotates through the interior of the drying booth 10 and is formed of a drying wire 22 in which a plurality of drying hooks 21 to be dried are connected at equal intervals.

The drying wire 22 is connected to the drying driving unit 18 and the drying driven unit 19 installed on the outside of the drying booth 10 and is configured to continuously rotate and move along the wire rail 23 in a conveyor belt manner. .

The drying hook 21 may be configured so that the drying wire 22 can be hung alone depending on the size of the object to be dried. When the size of the object to be dried is small, the object to be dried is jammed using a separate tray. The tray is configured to be hung on the drying hook (21).

When the drying hook 21 is located outside of the drying booth 10, the worker is configured to perform a powder operation for painting the object to be dried.

The drying hook 21 and the drying wire 22 are made of a material that is not affected by high heat and does not deform.

The auxiliary drying unit 30 rotates around both side frames 15 of the drying booth 10 to form an auxiliary heating element 31 positioned between the drying hooks 21.

Such, the auxiliary drying unit 30 constitutes an auxiliary belt 34 moving along the driving pulley 32 and the driven pulley 33, which are installed to be spaced apart from both ends of the side frame 15 of the drying booth 10. However, the auxiliary belt 34 may be configured in a chain-type or a heat-resistant rubber plate having multiple ducts or a plurality of plates in a caterpillar shape.

In order to rotate the driving pulley 32 and the driven pulley 33, a separate driving motor (not shown) may be fixed to the drying booth 10 in the drawing.

The auxiliary belt 34 will preferably be constructed of a material that is not stretched and has no elasticity.

A link 40 is installed at equal intervals on the outer surface of the auxiliary belt 34, and the link 40 forms a connecting end 41 connected to the auxiliary belt 34, and the connecting end 41 ) May be arranged in a plurality depending on the size of the link in the vertical direction, but in the present invention, it is preferable to configure the two in the vertical direction.

First and second links 42 and 43 are formed to be rotatably connected to the connecting end 41, and one end of the first and second links 42 and 43 is rotated to the connecting end 41. It is configured to be connected to each other so that they can overlap or unfold.

The third and fourth links 44 and 45 are rotatably connected to the first and second links 42 and 43, respectively.

Connecting the ends of the third and fourth links 44 and 45 and forming a roller end 46 that moves along the guide 50, the roller end 46 links while moving along the guide 50 (40) is configured to expand or maintain the unfolded state, or to fold or maintain the folded state.

The roller end 46 is connected to a support 48 for connecting the links 40 to each other in the longitudinal direction.

It is coupled to both sides of the link 40 to form an auxiliary heating element 31 that generates heat. The auxiliary heating elements 31 are installed in front of the first and third links 42 and 43, respectively, and the second and fourth links (44) (45) is installed in front of each.

The auxiliary heating element 31 is preferably a far-infrared heater (halogen lamp), and when the link 40 is folded in close contact with the auxiliary belt 34, the power is cut off and a straight shape toward the inner direction of the drying booth 10 When unfolded, it is configured to apply power.

That is, the power for supplying power to the auxiliary heating element 31 is connected to a power line made of a metal material that is not affected by high temperature, and is extended through the auxiliary belt 34 to be connected to a separate power supply.

In addition, the auxiliary heating element 31 has a power line (not shown) and first, third links 42, 43 and second when the link 40 is unfolded in a straight shape toward the inner direction of the drying booth 10. ,The contact terminal 47 formed on the 4 links 44 and 45 is connected as a contact to supply power, and when the link 40 is folded in close contact with the auxiliary belt 34, it is short-circuited so that power is not supplied. do.

A guide 50 is installed along the periphery of both side frames 15 so as to guide the link 40 to be unfolded inside the dry booth 10 and folded outside, and the cross-sectional shape of the guide 50 is upper It is composed of a rail system in the form of a de-opener that is opened with a furnace.

On the lower surface of the guide 50, a support frame 57 formed on the bottom frame 17 of the drying booth 10 and a bottom surface on which the drying booth 10 is installed is formed to float the guide 50 in the air. Is to support.

The guide 50 is located on the inlet side of the drying booth 10 in which the drying object flows in such a way that the link 40 is spread out in a strip form installed at both ends of the side frame 15 of the drying booth 10. The first inclined portion 51 is formed.

The first horizontal portion 52 extending to the first inclined portion 51 and horizontally located along the inside of the drying booth 10 is formed.

It extends to the first horizontal portion 52 to form a second inclined portion 53 which is located on the volleyball side of the drying booth 10 through which the drying object is discharged so that the link 40 is folded.

The second vertical portion 54 is extended to the second inclined portion 53 to move the link 40 to the outside of the drying booth 10.

The second horizontal portion 55 is extended to the second vertical portion 54 and horizontally located along the outside of the drying booth 10.

It is configured to extend with the first inclined portion 51 to the first vertical portion 56 that extends to the second horizontal portion 55 and moves the link 40 to the inner side of the drying booth 10.

At this time, the first inclined portion 51, the first horizontal portion 52, and the second inclined portion 53 of the link 40 have a side frame 15 and an inner separation distance L1 of the drying booth 10. The first vertical portion 56, the second horizontal portion 55, and the second vertical portion 54 of the link 40 are formed from the side frame 15 and the outer separation distance L2 of the drying booth 10. Thus, the link 40 is configured to be opened or folded.

The interior of the drying booth 10 on the roof frame 16 and the bottom frame 17 located on the inlet side of the drying booth 10 through which the drying object is introduced and on the volleyball side of the drying booth 10 through which the drying object is discharged. Each of the air curtains 60 to prevent heat loss is formed, and the air curtains 60 strongly blow air from both the upper and lower ends of the drying booth 10 to heat the inside of the drying booth 10. It is configured not to be discharged to the outside.

Referring to the embodiment of the coating product drying apparatus configured as described above with reference to the following.

1 to 8, the drying device 100 is applied to the drying object 200 on the drying hook 21 connected to the drying wire 22 of the drying line part 20, and then spraying the paint. Separately, the powder work is performed separately, and the drying wire 22 continuously rotates with the drying driven part 19 by the operation of the drying driving part 18. It is done in real time at the process stage.

When the powdering work on the drying object 200 is completed, the drying wire 22 is continuously moved by the operation of the drying driving unit 18 to dry the drying object 200 while being caught by the drying hook 21. It is moved to the interior of the booth 10.

In this way, when the drying object 200 is moved to the interior of the drying booth 10, the first, second, third, and fourth heating units 11, 12, 13, 14 operate to generate heat to generate drying objects. The coating of 200 is to be dried.

At this time, when the object to be dried 200 moves to the interior of the drying booth 10, the driving pulley 32 of the auxiliary drying unit 30 operates to rotate together with the driven pulley 33. In the present invention, the link 40 ) 1st vertical section 56 -> 1st slope section 51 -> 1st horizontal section -> 2nd slope section 53 -> 2nd vertical section 54 -> 2nd slope section 53 ) In the order of moving sequentially.

First, when the driving pulley 32 of the auxiliary drying unit 30 is operated, the auxiliary belt 34 is operated and rotates, but the roller end 46 is attached to the guide 50 during installation, and the auxiliary belt 34 ) Is rotated, the roller end 46 moves along the guide 50, but the roller end 46 has a first vertical part 56 -> first inclined part 51 -> first horizontal part -> second Looking at the operation of the link 40 when moving along the inclined portion 53 -> second vertical portion 54 -> second inclined portion 53 is as follows.

1. When the roller end 46 moves along the first vertical portion 56, the link 40 is folded and moved in close contact with the auxiliary belt 34.

2. When the roller end 46 is moved along the first inclined portion 51, the first inclined portion 51 faces the inside of the drying booth 10 and is formed away from the side frame 15 and the roller end ( 46) The first, second, third, and fourth links 42, 43, 44, 45 unfold in a rhombus shape by pulling the link 40 while moving along the first inclined portion 51. In the part extended to (52), the drying hook (21) in which the drying object (200) is hung in an unfolded state is folded and moved in close contact with the drying hook (21).

At this time, the first, third link (42) (43) and the second, fourth link (44) (45) are unfolded, the contact terminal (47) is contacted, and power is applied to the auxiliary heating element (31) through heat generation. The object to be dried is irradiated with heat.

3. When the roller end 46 moves along the first horizontal portion 52, it is located between the drying hooks 21 on which the drying object 200 is hung, and at the same moving speed as the drying line portion 20. As the auxiliary drying unit 30 operates and moves together, heat is radiated to the central portion of the object to be dried 200 by the auxiliary heating element 31, thereby reducing drying time and improving drying efficiency.

4. When the roller end 46 is moved along the second inclined portion 53, the second inclined portion 53 is formed so as to face the outer side of the drying booth 10 and close to the side frame 15. 46) Compressing the link 40 while moving along the second inclined portion 53, the first, second, third, and fourth links 42, 43, 44, 45 are pressed and the second vertical portion ( In the part extended to 54), it moves to the fully folded state.

At this time, as the link 40 is folded, the auxiliary heating element 31 is detached between the drying hooks 21 on which the drying object 200 is hung.

5. When the roller end 46 moves along the second vertical portion 54, the link 40 is folded and moved in close contact with the auxiliary belt 34.

6. When the roller end 46 moves along the second horizontal portion 55, the worker collects the object 200 to be dried on the drying hook 21 that has completed drying of the paint, and then another worker paints the paint. When the object for the hook is applied to the drying hook 21, after the painting operation is performed, the first vertical portion 56 is moved along the roller end 46, and thus the drying operation can be repeatedly performed.

In addition, strong winds discharged by the air curtain 60 installed on the inlet side of the drying booth 10 and the volleyball side of the drying booth 10 through which drying objects are discharged are provided at both ends of the upper end of the drying booth 10. There is a feature in that the heat inside the drying booth 10 is not discharged to the outside by strongly spraying air from the bottom.

In the above description, specific shapes and directions are mainly described in describing the drying device for the coated product of the present invention with reference to the accompanying drawings. It should be interpreted as being included in the scope.

10: drying booth 11: first heating part
12: second heating unit 13: third heating unit
14: fourth heating part 15: side wall frame
16: Roof frame 17: Floor frame
18: dry driving unit 19: dry driven unit
20: drying line 21: drying hook
22: drying wire 30: auxiliary drying unit
31: auxiliary heating element 32: driving pulley
33: driven pulley 34: auxiliary belt
40: link 41: connecting end
42: first link 43: second link
44: third link 45: fourth link
46: roller end 47: contact terminal
50: guide 51: first slope
52: first horizontal portion 53: second slope portion
54: second vertical portion 55: second horizontal portion
56: first vertical part 60: air curtain
100: coating device 200: object to be dried
L1: inner separation distance L2: outer separation distance

Claims (6)

In the coating drying apparatus for drying the coating of the object to be dried,
Drying booths (10) forming first, second, third and fourth heating sections (11), (12), (13) and (14) on the ceiling, on both side walls and on the floor, respectively.
Drying line portion 20 formed of a drying wire 22 in which a plurality of drying hooks 21 rotating through the inside of the drying booth 10 and hanging to be dried are connected at equal intervals,
The auxiliary drying unit 30 is formed by rotating the periphery of both side frames 15 of the drying booth 10 and forming an auxiliary heating element 31 positioned between the drying hooks 21,
The auxiliary drying unit 30,
Drying booth (10) Auxiliary belt (34) moving along the drive pulley (32) and driven pulley (33) is installed to be spaced apart from both ends of the side frame (15),
Link 40 is installed at equal intervals on the outer surface of the auxiliary belt (34),
Auxiliary heating element 31 is coupled to both sides of the link 40 to generate heat,
A coating product drying apparatus comprising a guide (50) installed along the periphery of both side frames (15) to guide the link (40) to be opened inside the drying booth (10) and folded outside.
delete According to claim 1, The link 40 is a connecting end (41) connected to the auxiliary belt (34),
The first and second links 42 and 43 that are rotatably connected to the connection end 41,
Third and fourth links (44) (45), which are respectively connected to the first and second links (42, 43) to be rotated,
The apparatus for drying a painted product, characterized in that a roller end (46) is moved along the guide (50) while connecting the ends of the third and fourth links (44) (45).
The drying booth according to claim 1 or 3, wherein the guide (50) is a belt that is spaced apart from both ends of the side frame (15) of the drying booth (10), and the link (40) is spread out. The first inclined portion 51 located at the entrance side of (10),
The first horizontal portion 52 extending horizontally along the inside of the drying booth 10 extending to the first inclined portion 51,
A second inclined portion (53) which extends to the first horizontal portion (52) and is located on the volleyball side of the drying booth (10) in which the drying object is discharged so that the link (40) is folded.
A second vertical portion 54 that extends to the second inclined portion 53 and moves the link 40 to the outside of the drying booth 10,
A second horizontal portion 55 extending to the second vertical portion 54 and horizontally located along the outside of the drying booth 10,
Characterized in that it is configured to extend with the first inclined portion (51) in the first vertical portion (56) that extends to the second horizontal portion (55) and moves the link (40) to the inner side of the drying booth (10). Drying device for painted products.
The method of claim 4, wherein the first inclined portion (51), the first horizontal portion (52), and the second inclined portion (53) of the link (40) are spaced apart from the side frame (15) of the drying booth (10). The distance L1 is the first vertical portion 56, the second horizontal portion 55, and the second vertical portion 54 of the link 40 is the side frame 15 of the drying booth 10 and the outer separation distance ( L2) drying device for coating products, characterized in that more configured.
According to claim 1, Drying on the roof frame 16 and the bottom frame (17) located on the inlet side of the drying booth (10) in which the drying object is introduced and the volleyball side of the drying booth (10) through which the drying object is discharged. Drying device for painted products, characterized in that each comprises an air curtain (60) to prevent internal heat loss of the booth (10).

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