Heating and curing device for paint film of color-coated sheet

By improving the structure of the color-coated steel sheet paint film heating and curing device, uniform spraying and rapid drying of the color-coated steel sheet are achieved by using paint nozzles and warm air nozzles. This solves the problem of the influence of the external environment on the spraying process and the emission of harmful substances, thereby improving the paint film quality and production efficiency.

CN224025432UActive Publication Date: 2026-03-24GUANXIAN HANGDA COMPOSITE MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing color-coated steel sheet paint film heating and curing devices are easily affected by the external environment during the spraying process before heating, which can lead to paint film contamination or damage, and the emission of harmful substances during the spraying process causes serious environmental pollution.

Method used

Design a device comprising a body, motor module, paint applicator, recycling drawer, heater, heating fan, color-coated sheet, plate feeding roller, first pressure roller, second pressure roller, transport roller, and plate receiving roller. The device sprays paint film through paint applicator nozzles and combines heating coils and warm air nozzles for heating, achieving uniform spraying and rapid drying.

Benefits of technology

It ensures a uniform and smooth paint film coating, reduces defects and flaws, improves quality and durability, controls the emission of harmful substances, reduces environmental pollution, and significantly accelerates the drying speed of the paint film, shortening the production cycle.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the field of color-coated sheet paint films, in particular to a heating and curing device for a color-coated sheet paint film, which comprises a machine body, a motor module, a paint discharging device, a recycling drawer, a heater, a warm air supply fan, a color-coated sheet, a sheet supply roller, a first paint film pressing roller, a second paint film pressing roller, a conveying roller and a sheet collecting roller, a paint discharging device is installed on the upper left corner of the inner side of the machine body, a recycling drawer is installed on the lower left corner of the inner side of the machine body, a heater is installed at the bottom of the inner side of the machine body, and a warm air supply fan is installed on the top of the machine body. A color-coated plate is input into the machine body through a plate supply roller, and paint film coating is conducted through a first paint film pressing roller and a second paint film pressing roller. By means of uniform heating of the heating coil and the warm air effect of the warm air nozzles, drying of a paint film can be accelerated, the drying speed of the paint film coating can be remarkably increased, and the production period can be shortened.
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Description

Technical Field

[0001] This utility model relates to the field of color-coated steel sheet paint film, specifically to a heating and curing device for color-coated steel sheet paint film. Background Technology

[0002] The heat curing of paint film on pre-coated steel sheets refers to the process of curing the paint film into a solid film through heating. This is achieved through heat transfer via hot air and radiant heat from an infrared ceramic plate, allowing the paint film to absorb heat and cure. Chinese patent discloses a heat curing device for pre-coated steel sheet paint film (Authorization Announcement No. CN 218251294). This patented technology, through the setting of a fixed ring, connecting rod, hot air nozzles, support rod, and wind shield, allows the user to utilize five wide-mouth hot air nozzles to divert the airflow generated by the hot air pump. The airflow is directed towards the wind shield, which further slows down the hot air and prevents it from directly hitting the color-coated plate on top of the carrier platform. The hot air is evenly distributed within the color-coated plate curing frame, minimizing the impact of wind on the paint film on the surface of the color-coated plate during the drying process, thus preventing deformation and defects. This eliminates user hassle and simplifies operation. However, this design requires the color-coated plate to be pre-coated before being placed on the carrier platform for heat curing, a process that can easily contaminate or damage the paint film. Therefore, those skilled in the art have provided a heat curing device for color-coated plate paint films to solve the problems mentioned in the background art. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a heating and curing device for the paint film of color-coated steel sheets, including a machine body, a motor module, a paint applicator, a collection drawer, a heater, a heating fan, a color-coated steel sheet, a feeding roller, a first paint film pressing roller, a second paint film pressing roller, a transport roller, and a collecting roller. The motor module is installed on the front side of the machine body, the paint applicator is installed on the upper left corner of the inner side of the machine body, the collection drawer is installed on the lower left corner of the inner side of the machine body, the heater is installed on the bottom of the inner side of the machine body, and the heating fan is installed on the top of the machine body. The color-coated steel sheet is input into the machine body through the feeding roller, coated with paint film by the first and second paint film pressing rollers, transported by multiple transport rollers, and finally collected by the collecting roller.

[0004] Preferably, a heating coil is installed on the right side of the heater, a base plate is installed at the bottom of the heater and the heating coil, and a support foot is installed at the bottom of the base plate;

[0005] Preferably: the heating fan is installed on the bracket, the air duct is installed on the right side of the heating fan, the air duct is connected to the heating pipe, multiple heating nozzles are installed at the bottom of the heating pipe, and a baffle is installed directly below the heating nozzles. The baffle is installed on the inner wall of the machine body through a fixing plate.

[0006] Preferably: a first roller frame is installed on the left side of the machine body, and a feeding roller is installed on the first roller frame; a second roller frame is installed on the right side of the machine body, and a receiving roller is installed on the second roller frame.

[0007] Preferably: A first partition is installed on the inner side of the machine body, and a second partition is installed slightly above the middle section of the first partition. The second partition has a pipe groove, and a paint applicator is installed inside the second partition. The bottom of the paint applicator has a paint groove, which is connected to a paint pipe. The paint pipe can pass through the pipe groove, and a paint head is installed at the bottom of the paint pipe. Multiple paint nozzles are installed at an angle on the paint head.

[0008] Preferably: the left side panel of the machine body is provided with a No. 1 slot, the right side panel of the machine body is provided with a No. 3 slot, the No. 1 partition is provided with a No. 2 slot, a top plate is installed on the top side wall of the machine body, a cover groove is provided on the left side of the top plate, a cover plate can be installed in the cover groove, a pull rod is installed on the upper side wall of the cover plate, a drawer groove is provided at the bottom of the machine body, a recycling drawer is installed in the drawer groove, and a pull plate is installed on the side wall of the recycling drawer.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. The color-coated plate is sprayed with paint film through the paint nozzle at the bottom of the paint applicator between the inner side of the machine body and the No. 1 partition plate. This can avoid the influence of the external environment on the painting process, such as dust and moisture, thereby ensuring that the paint film coating is more uniform and smooth, reducing defects and flaws, and improving quality and durability.

[0011] 2. The color-coated sheet is sprayed with paint film through the paint nozzle at the bottom of the paint applicator between the inner side of the machine body and the No. 1 partition. This can effectively control the emission of harmful substances during the painting process and reduce environmental pollution.

[0012] 3. The bottom of the machine body is equipped with a drawer slot, and a recycling drawer is installed in the drawer slot. A pull plate is installed on the side wall of the recycling drawer. When the paint film is squeezed by the No. 1 and No. 2 paint film pressing rollers, the excess paint film falls into the recycling drawer at the bottom for collection, reducing pollution.

[0013] 4. A heating coil is installed on the right side of the heater, and an air duct is installed on the right side of the heating fan. The air duct is connected to the heating pipe, and multiple heating nozzles are installed at the bottom of the heating pipe. A baffle is installed directly below the heating nozzles. Through the uniform heating of the heating coil and the warm air effect of the heating nozzles, the drying of the paint film can be accelerated, significantly speeding up the drying speed of the paint film and shortening the production cycle. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a heat curing device for color-coated steel sheet paint film provided in an embodiment of this application;

[0015] Figure 2 This is a cross-sectional structural diagram of a heat curing device for color-coated steel sheet paint film provided in an embodiment of this application;

[0016] Figure 3 This is an exploded structural diagram of a heat curing device for color-coated steel sheet paint film provided in an embodiment of this application. Figure 1 ;

[0017] Figure 4 This is an exploded structural diagram of a heat curing device for color-coated steel sheet paint film provided in an embodiment of this application. Figure 2 ;

[0018] Figure 5 This is a schematic diagram of the structure for transporting color-coated steel sheets in a heat curing device for color-coated steel sheet paint film provided in an embodiment of this application;

[0019] Figure 6 This is a schematic diagram of the paint applicator in a heat curing device for color-coated steel sheet provided in an embodiment of this application;

[0020] Figure 7 This is a schematic diagram of the heating coil in a heating and curing device for color-coated steel sheet paint film provided in an embodiment of this application;

[0021] Figure 8 This is a schematic diagram of the heating fan in a heating and curing device for color-coated steel sheet paint film provided in an embodiment of this application.

[0022] In the diagram: 1. Machine body; 2. Motor module; 3. Cover plate; 4. Paint applicator; 5. Recycling drawer; 6. Heater; 7. Heating fan; 8. Baffle; 9. Color-coated sheet; 10. Feeding roller; 11. No. 1 paint film pressing roller; 12. No. 2 paint film pressing roller; 13. Conveyor roller; 14. Receiving roller; 101. No. 1 roller frame; 102. No. 2 roller frame; 103. No. 1 partition; 104. No. 2 partition; 105. Tube groove; 106. No. 1 plate groove opening; 107. Slot of No. 2 board; 108. Slot of No. 3 board; 109. Top plate; 110. Cover slot; 111. Drawer slot; 301. Pull rod; 401. Paint drain slot; 402. Paint drain pipe; 403. Paint drain head; 404. Paint drain nozzle; 501. Pull plate; 601. Heating coil; 602. Base plate; 603. Support leg; 701. Bracket; 702. Air duct; 703. Heating pipe; 704. Heating nozzle; 801. Fixing plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0024] Example

[0025] Please see Figures 1 to 8 This embodiment provides a heating and curing device for the paint film of color-coated steel sheets, including a machine body 1, a motor module 2, a paint applicator 4, a collection drawer 5, a heater 6, a heating fan 7, a color-coated steel sheet 9, a feeding roller 10, a first paint film pressing roller 11, a second paint film pressing roller 12, a transport roller 13, and a collecting roller 14. The motor module 2 is installed on the front side of the machine body 1, the paint applicator 4 is installed on the upper left corner of the inner side of the machine body 1, the collection drawer 5 is installed on the lower left corner of the inner side of the machine body 1, the heater 6 is installed on the bottom of the inner side of the machine body 1, and the heating fan 7 is installed on the top of the machine body 1. The color-coated steel sheet 9 is input into the machine body 1 through the feeding roller 10, coated with paint film by the first paint film pressing roller 11 and the second paint film pressing roller 12, transported by multiple transport rollers 13, and finally collected by the collecting roller 14.

[0026] Specifically, a heating coil 601 is installed on the right side of heater 6. A base plate 602 is installed at the bottom of heater 6 and heating coil 601. A support leg 603 is installed at the bottom of base plate 602. A heating fan 7 is installed on bracket 701. A duct 702 is installed on the right side of heating fan 7. A heating pipe 703 is connected to the duct 702. Multiple heating nozzles 704 are installed at the bottom of heating pipe 703. A baffle 8 is installed directly below the heating nozzles 704. The baffle 8 is installed on the inner wall of the machine body 1 via a fixing plate 801. A first roller frame 101 is installed on the left side of the machine body 1. A first roller frame 101 is installed on the first roller frame 101. A feeding roller 10 is provided. A second roller frame 102 is installed on the right side of the machine body 1. A receiving roller 14 is installed on the second roller frame 102. A first partition 103 is installed inside the machine body 1. A second partition 104 is installed slightly above the middle section of the first partition 103. A pipe groove 105 is provided on the second partition 104. A paint applicator 4 is installed inside the second partition 104. A paint applicator 4 has a paint groove opening 401 at the bottom. The paint groove opening 401 is connected to a paint pipe 402. The paint pipe 402 can pass through the pipe groove 105. A paint head 403 is installed at the bottom of the paint pipe 402. Multiple paint nozzles 404 are installed at an angle on the paint head 403.

[0027] The left side plate of the body 1 is provided with a first plate slot 106, the right side plate of the body 1 is provided with a third plate slot 108, and the first partition 103 is provided with a second plate slot 107.

[0028] A top plate 109 is installed on the top side wall of the body 1. A cover groove 110 is provided on the left side of the top plate 109. A cover plate 3 can be installed in the cover groove 110. A pull rod 301 is installed on the upper side wall of the cover plate 3. A drawer groove 111 is provided at the bottom of the body 1. A recycling drawer 5 is installed in the drawer groove 111. A pull plate 501 is installed on the side wall of the recycling drawer 5.

[0029] The working principle of this utility model is as follows:

[0030] In a heat curing device for color-coated steel sheet paint film, color-coated steel sheets 9 are mounted on a first pressure roller 11, a second pressure roller 12, a transport roller 13, and a receiving roller 14. The color-coated steel sheets 9 are sprayed with paint film through the paint nozzle 404 at the bottom of the paint applicator 4 between the inner side of the machine body 1 and the first partition plate 103. This avoids the influence of the external environment on the painting process, such as dust and moisture, thereby ensuring a more uniform and smooth paint film coating, reducing defects and flaws, improving quality and durability. Furthermore, it effectively controls the emission of harmful substances during the painting process, reducing environmental pollution. A drawer 111 is provided at the bottom of the machine body 1, and a recycling drawer is installed inside the drawer 111. 5. A pull plate 501 is installed on the side wall of the recycling drawer 5. When the paint film is squeezed by the first paint film roller 11 and the second paint film roller 12, the excess paint film falls into the recycling drawer 5 at the bottom for collection, reducing pollution. A heating coil 601 is installed on the right side of the heater 6, and an air duct 702 is installed on the right side of the heating fan 7. The air duct 702 is connected to the heating pipe 703. Multiple heating nozzles 704 are installed at the bottom of the heating pipe 703. A baffle 8 is installed directly below the heating nozzles 704. Through the uniform heating of the heating coil 601 and the warm air effect of the heating nozzles 704, the drying of the paint film can be accelerated, significantly speeding up the drying speed of the paint film and shortening the production cycle.

[0031] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A heating and curing device for a color-coated steel sheet paint film, characterized in that, The machine includes a body (1), a motor module (2), a paint applicator (4), a recycling drawer (5), a heater (6), a heating fan (7), a color-coated sheet (9), a board feeding roller (10), a first-stage paint pressing roller (11), a second-stage paint pressing roller (12), a transport roller (13), and a board collecting roller (14). The motor module (2) is installed on the front side of the body (1), the paint applicator (4) is installed on the upper left corner of the inner side of the body (1), the recycling drawer (5) is installed on the lower left corner of the inner side of the body (1), the heater (6) is installed on the bottom of the inner side of the body (1), and the heating fan (7) is installed on the top of the body (1). The color-coated sheet (9) is collected on the board feeding roller (10), the first-stage paint pressing roller (11), the second-stage paint pressing roller (12), the transport roller (13), and the board collecting roller (14).

2. The heating and curing device for color-coated steel sheet paint film according to claim 1, characterized in that, A heating coil (601) is installed on the right side of the heater (6), and a base plate (602) is installed at the bottom of the heater (6) and the heating coil (601), with a support foot (603) installed at the bottom of the base plate (602).

3. The heating and curing device for a color-coated steel sheet paint film according to claim 1, characterized in that, The heating fan (7) is installed on the bracket (701). The air duct (702) is installed on the right side of the heating fan (7). The air duct (702) is connected to the heating pipe (703). Multiple heating nozzles (704) are installed at the bottom of the heating pipe (703). A baffle (8) is installed directly below the heating nozzles (704). The baffle (8) is installed on the inner wall of the body (1) through the fixing plate (801).

4. The heating and curing device for a color-coated steel sheet paint film according to claim 3, characterized in that, The machine body (1) has a first roller frame (101) installed on the left side, and a feeding roller (10) installed on the first roller frame (101). The machine body (1) has a second roller frame (102) installed on the right side, and a receiving roller (14) installed on the second roller frame (102).

5. The heating and curing device for a color-coated steel sheet paint film according to claim 4, characterized in that, A first partition (103) is installed on the inner side of the body (1). A second partition (104) is installed on the upper part of the middle section of the first partition (103). A pipe groove (105) is provided on the second partition (104). A paint applicator (4) is installed inside the second partition (104).

6. The heating and curing device for a color-coated steel sheet paint film according to claim 5, characterized in that, The bottom of the paint applicator (4) is provided with a paint groove (401), which is connected to the paint pipe (402). The paint pipe (402) can be inserted into the pipe groove (105). A paint head (403) is installed at the bottom of the paint pipe (402), and multiple paint nozzles (404) are installed at an angle on the paint head (403).

7. The heating and curing device for a color-coated steel sheet paint film according to claim 5, characterized in that, The left side plate of the body (1) is provided with a first plate slot (106), the right side plate of the body (1) is provided with a third plate slot (108), and the first partition (103) is provided with a second plate slot (107).

8. The heating and curing device for a color-coated steel sheet paint film according to claim 7, characterized in that, The top side wall of the body (1) is fitted with a top plate (109), and a cover groove (110) is provided on the left side of the top plate (109). A cover plate (3) can be installed in the cover groove (110), and a pull rod (301) is installed on the upper side wall of the cover plate (3).

9. The heating and curing device for a color-coated steel sheet paint film according to claim 8, characterized in that, The bottom of the body (1) is provided with a drawer slot (111), a recycling drawer (5) is installed in the drawer slot (111), and a pull plate (501) is installed on the side wall of the recycling drawer (5).