Tunnel curing furnace with uniform curing effect

Abstract

This utility model discloses a tunnel curing oven with uniform curing effect, relating to the field of circuit board curing technology. The utility model includes a shell, a curing assembly, and two end plates. The curing assembly includes a set of infrared lamps, a set of UV lamps, and two semi-cylindrical lampshades; the open ends of the two lampshades are fastened together, each housing an infrared lamp and a UV lamp; the end plates are fixed to both ends of the shell, with windows on their surfaces for the circuit board to pass through; the ends of the two lampshades are rotatably mounted inside the end plates. This utility model, by having the circuit board to be cured pass through the windows on the side of the end plates and extend into the curing assembly, allows the curing assembly to rotate within the shell, causing the infrared and UV lamps to alternately irradiate the upper surface of the circuit board. This avoids excessively high temperatures caused by prolonged irradiation of the circuit board by the infrared lamps and achieves a curing effect without dead angles.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board curing technology, and in particular relates to a tunnel curing oven with uniform curing effect. Background Technology

[0002] In the field of industrial coating curing, tunnel curing ovens are widely used for the continuous drying and curing of surface coatings on products such as circuit boards and metal parts. Traditional equipment often uses a single type of light source (such as full infrared or full UV) for heating, which has problems such as uneven energy distribution, local overheating, or curing blind spots, affecting the consistency of coating quality. Although infrared heating heats up rapidly, prolonged irradiation can easily lead to excessively high substrate temperatures and deformation. Although UV curing is highly efficient, it has insufficient penetration into complex three-dimensional structures or shaded areas. In addition, fixed lamp assemblies are difficult to adjust the irradiation angle flexibly according to the product shape, and maintenance and replacement require shutdown operations, reducing production efficiency. There is a lack of an intelligent curing solution that can integrate multiple energy sources, achieve dynamic and uniform irradiation, and is easy to maintain.

[0003] To address these issues, we provide a tunnel curing oven with uniform curing effect. Utility Model Content

[0004] The purpose of this invention is to provide a tunnel curing oven with uniform curing effect. The curing component is rotatably positioned between two end plates, with a shell on the outside of the curing component. The circuit board to be cured is inserted through a window on the side of the end plate into the curing component, where the curing component cures the upper surface of the circuit board. Two semi-cylindrical lampshades in the curing component interlock to form a cylindrical shape. A set of infrared lamps and a set of UV lamps are respectively placed inside the two lampshades. The two lampshades rotate within the shell, allowing the infrared and UV lamps to alternately irradiate the upper surface of the circuit board. This avoids excessively high temperatures caused by prolonged irradiation of the circuit board by the infrared lamps and achieves a curing effect without dead angles.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a tunnel curing oven with uniform curing effect, including an outer shell, a curing component and two end frame plates. The curing component includes a set of infrared lamps, a set of UV lamps and two lamp covers. The lamp covers are semi-cylindrical structures with openings at both ends. The two end frame plates are respectively fixedly installed at the opening ends of the outer shell. The opening ends of the two lamp covers are interlocked and fixedly connected. The set of infrared lamps is set in one lamp cover and the set of UV lamps is set in the other lamp cover. A window is opened through the surface of the end frame plate. The two ends of the two lamp covers are respectively rotatably installed on the inner side of the two end frame plates.

[0007] A further feature of this invention is that a conductive slide rail is fixedly installed on the inner side of the end plate. The conductive slide rail is a semi-circular arc structure with an opening facing downwards. Series arc plates are fixedly installed on the outer sides of both ends of the lamp cover. The two ends of the infrared lamp tube group are respectively connected to the series arc plates at both ends. The two ends of the UV lamp tube group are respectively connected to the series arc plates at both ends. The series arc plates are connected to the conductive slide rail.

[0008] A further feature of this invention is that a spring tube is fixedly provided at the end of the series arc plate away from the lampshade, and an end cap is fixedly covered at the end of the spring tube away from the series arc plate. A side-top spring is sleeved inside the spring tube, and a conductive ball is sleeved at one end of the spring tube. The conductive ball passes through the end cap at the end away from the series arc plate, and the side-top spring abuts against the side of the conductive ball at the end away from the series arc plate. A ball groove is provided on the side of the conductive slide rail near the lampshade, and the conductive ball is fitted into the ball groove on the side of the conductive slide rail.

[0009] A further feature of this invention is that a ceramic-connected slide rail is fixedly installed on the inner side of the end plate. The ceramic-connected slide rail has an upward-opening semi-circular arc structure. The ceramic-connected slide rail is fastened to the conductive slide rail. A ball groove matching the side of the conductive slide rail is provided on the side of the ceramic-connected slide rail closest to the lampshade.

[0010] A further feature of this invention is that a set of receiving rollers is rotatably installed between the two end frame plates below the lampshade, and the outer side of the lampshade is attached to the roller surface of the receiving rollers.

[0011] A further feature of this invention is that a mounting hoop is fixedly fitted inside the window. The mounting hoop is a semi-circular arc-shaped structure with an upward opening. A sleeve shaft is rotatably installed between the two sides of the upper end of the mounting hoop, and a conveyor belt is fitted between the two sleeve shafts.

[0012] A further feature of this invention is that a drive motor is provided at the bottom of the outer casing, and a drive wheel is fixedly sleeved on the output shaft of the drive motor, with the side of the drive wheel fitting against the lampshade.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model rotatably sets the curing component between two end plates, sets a shell on the outside of the curing component, and inserts the circuit board to be cured through the window on the side of the end plate into the curing component, so that the curing component can cure the upper surface of the circuit board.

[0015] 2. This utility model uses two semi-cylindrical lamp covers in the curing component to interlock to form a cylindrical shape. A set of infrared lamps and a set of UV lamps are respectively placed inside the two lamp covers, so that the two lamp covers rotate inside the outer shell, allowing the infrared lamps and UV lamps to alternately irradiate the upper surface of the circuit board. This avoids the infrared lamps irradiating the circuit board for a long time, which would cause the temperature to be too high, and achieves the technical effect of curing without dead angles. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the structure of a tunnel curing furnace with uniform curing effect.

[0018] Figure 2 This is an exploded view of the curing component.

[0019] Figure 3 This is an exploded view of the end frame plate and the curing assembly.

[0020] Figure 4 This is a schematic diagram of the curing component and the receiving roller.

[0021] Figure 5 This is a schematic diagram of the end frame plate and the conveyor belt.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Outer shell, 101-Drive motor, 101a-Drive wheel, 2-Curing assembly, 201-Infrared lamp, 202-UV lamp, 203-Lamp cover, 203a-Series arc plate, 203a-1-Spring tube, 203a-2-End cap, 203a-3-Side top spring, 203a-4-Conductive ball bearing, 3-End bracket plate, 301-Window, 301a-Mounting clamp, 301a-1-Sleeve shaft, 301a-2-Conveyor belt, 302-Conductive slide rail, 303-Ceramic joint slide rail, 304-Receiving roller. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0025] Example 1

[0026] Please see Figures 1 to 3This utility model is a tunnel curing oven with uniform curing effect, including a shell 1, a curing component 2, and two end plates 3. The curing component 2 includes a set of infrared lamps 201, a set of UV lamps 202, and two lamp covers 203. The curing component 2 is rotatably positioned between the two end plates 3. The shell 1 is set on the outside of the curing component 2. The circuit board to be cured is passed through the window 301 on the side of the end plate 3 and inserted into the curing component 2. The curing component 2 cures the upper surface of the circuit board. The two semi-cylindrical lamp covers 203 in the curing component 2 are interlocked to form a cylinder. The set of infrared lamps 201 and the set of UV lamps 202 are respectively placed in the two lamp covers 203. The two lamp covers 203 rotate inside the shell 1, so that the infrared lamps 201 and UV lamps 202 alternately irradiate the upper surface of the circuit board, avoiding the excessive temperature caused by the infrared lamps 201 irradiating the circuit board for a long time, and achieving the technical effect of curing without dead angles.

[0027] Specifically, the lampshade 203 is a semi-cylindrical structure with openings at both ends. Two end brackets 3 are fixedly installed at the two opening ends of the outer shell 1. The opening ends of the two lampshades 203 are interlocked and fixedly connected. A set of infrared lamps 201 is installed inside one lampshade 203, and a set of UV lamps 202 is installed inside the other lampshade 203. A window 301 is provided through the plate surface of the end bracket 3. The two ends of the two lampshades 203 are rotatably installed on the inner sides of the two end brackets 3.

[0028] Furthermore, a conductive slide rail 302 is fixedly installed on the inner side of the end plate 3. The conductive slide rail 302 is a semi-circular arc structure with the opening facing downwards. Series arc plates 203a are fixedly installed on the outer sides of both ends of the lamp cover 203. The two ends of the infrared lamp tube 201 group are respectively connected to the series arc plates 203a at both ends. The two ends of the UV lamp tube 202 group are respectively connected to the series arc plates 203a at both ends. The series arc plates 203a are connected to the conductive slide rail 302.

[0029] Furthermore, a spring tube 203a-1 is fixedly installed at the end of the series arc plate 203a away from the lampshade 203. An end cap 203a-2 is fixedly covered at the end of the spring tube 203a-1 away from the series arc plate 203a. A side-top spring 203a-3 is fitted inside the spring tube 203a-1. A conductive ball 203a-4 is sleeved at one end of the spring tube 203a-1. The end of the conductive ball 203a-4 away from the series arc plate 203a penetrates the end cap 203a-2. The side-top spring 203a-3 is located away from the series arc plate 203a. One end of 03a rests against the side of the conductive ball 203a-4. The conductive slide rail 302 has a ball groove on the side near the lamp cover 203. The conductive ball 203a-4 is fitted into the ball groove on the side of the conductive slide rail 302. When the two lamp covers 203 rotate, the conductive balls 203a-4 at both ends of the upper lamp cover 203 contact the conductive slide rail 302, so that the lamp tube inside the upper lamp cover 203 is powered on and illuminates the circuit board inside the lamp cover 203. At this time, the lower lamp cover 203 is not powered on at both ends.

[0030] Furthermore, a ceramic contact slide rail 303 is fixedly installed on the inner side of the end plate 3. The ceramic contact slide rail 303 has an upward-opening semi-circular arc structure. The ceramic contact slide rail 303 is fastened to the conductive slide rail 302. The side of the ceramic contact slide rail 303 near the lampshade 203 has a ball groove that matches the side of the conductive slide rail 302. When the lampshade 203 is rotated to the bottom, the conductive balls 203a-4 at both ends are respectively fitted into the ball grooves on the sides of the ceramic contact slide rail 303 at both ends, preventing the power supply from being turned on, and making it smoother to slide into the upper conductive slide rail 302.

[0031] The operation process of this embodiment is as follows: the circuit board to be cured is inserted into the lamp cover 203, and the lamp cover 203 is rotated. The conductive balls 203a-4 at both ends of the upper lamp cover 203 contact the conductive slide rail 302, so that the lamp tube in the upper lamp cover 203 is powered on and illuminates the circuit board in the lamp cover 203. At this time, the lower lamp cover 203 is not powered on. When the lamp cover 203 rotates to the lower position, the conductive balls 203a-4 at both ends are respectively sleeved in the ball grooves on the side of the ceramic slide rail 303 at both ends, preventing the power from being connected. During the rotation of the two lamp covers 203, the infrared lamp tube 201 and UV lamp tube in the two lamp covers 203 alternately irradiate the upper surface of the circuit board.

[0032] Example 2

[0033] Please see Figures 1 to 5 Based on Example 1, a conveyor belt 301a-2 is provided between the two end plate 3. By placing the circuit board that needs to be cured on the upper surface of the conveyor belt 301a-2 and pushing the conveyor belt 301a-2 to rotate, the circuit board is sent into the lamp cover 203.

[0034] Specifically, a set of receiving rollers 304 are rotatably installed between the two end bracket plates 3 below the lampshade 203, and the outer side of the lampshade 203 is attached to the roller surface of the receiving rollers 304.

[0035] Furthermore, a mounting hoop 301a is fixedly fitted inside the window 301. The mounting hoop 301a is a semi-circular arc structure with the opening facing upward. A sleeve shaft 301a-1 is rotatably installed between the two sides of the upper end of the mounting hoop 301a. A conveyor belt 301a-2 is fitted between the two sleeve shafts 301a-1.

[0036] Furthermore, a drive motor 101 is provided at the bottom of the outer casing 1. A drive wheel 101a is fixedly sleeved on the output shaft of the drive motor 101. The side of the drive wheel 101a is in contact with the lamp cover 203. The drive motor 101 drives the drive wheel 101a to rotate, thereby driving the lamp cover 203 to rotate.

[0037] The operation process of this embodiment is as follows: the circuit board that needs to be cured is placed on the upper end of the conveyor belt 301a-2, and the conveyor belt 301a-2 is pushed to rotate, so that the circuit board is sent into the lamp cover 203. The drive motor 101 drives the drive wheel 101a to rotate, so that the drive wheel 101a drives the lamp cover 203 to rotate on the receiving roller 304.

[0038] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A tunnel curing oven with uniform curing effect, comprising a housing (1), a curing assembly (2) and two end rack plates (3), characterized in that: The curing component (2) includes a set of infrared lamps (201), a set of UV lamps (202), and two lamp covers (203). The lamp cover (203) is a semi-cylindrical structure with openings at both ends. The two end brackets (3) are respectively fixedly installed at the openings at both ends of the outer shell (1). The openings of the two lamp covers (203) are interlocked and fixedly connected. The set of infrared lamps (201) is set inside one lamp cover (203), and the set of UV lamps (202) is set inside the other lamp cover (203). A window (301) is provided through the plate surface of the end bracket (3). The two ends of the two lamp covers (203) are respectively rotatably installed on the inner sides of the two end brackets (3).

2. The tunnel curing oven having uniform curing effect according to claim 1, wherein: A conductive slide rail (302) is fixedly installed on the inner side of the end frame plate (3). The conductive slide rail (302) is a semi-circular arc structure with the opening facing downwards. A series arc plate (203a) is fixedly installed on the outer side of both ends of the lamp cover (203). The two ends of the infrared lamp tube (201) group are respectively connected to the series arc plate (203a) at both ends. The two ends of the UV lamp tube (202) group are respectively connected to the series arc plate (203a) at both ends. The series arc plate (203a) is connected to the conductive slide rail (302).

3. The tunnel curing oven of uniform curing effect according to claim 2, characterized in that: A spring tube (203a-1) is fixedly installed at one end of the series arc plate (203a) away from the lampshade (203). An end cap (203a-2) is fixedly covered at the other end of the spring tube (203a-1) away from the series arc plate (203a). A side-top spring (203a-3) is sleeved inside the spring tube (203a-1). A conductive ball (203a-4) is sleeved at one end of the spring tube (203a-1). The end of the ball (203a-4) away from the series arc plate (203a) passes through the end cap (203a-2). The end of the side spring (203a-3) away from the series arc plate (203a) rests on the side of the conductive ball (203a-4). The conductive slide rail (302) has a ball groove on the side near the lampshade (203). The conductive ball (203a-4) is fitted into the ball groove on the side of the conductive slide rail (302).

4. The tunnel curing oven of uniform curing effect according to claim 3, characterized in that: The inner side of the end plate (3) is fixedly installed with a ceramic connecting slide rail (303). The ceramic connecting slide rail (303) is a semi-circular arc structure with the opening facing upward. The ceramic connecting slide rail (303) is fastened with the conductive slide rail (302). The side of the ceramic connecting slide rail (303) near the lamp cover (203) is provided with a ball groove that matches the side of the conductive slide rail (302).

5. The tunnel curing oven of uniform curing effect according to claim 1, characterized in that: A set of receiving rollers (304) is rotatably installed between the end frame plates (3) at both ends below the lampshade (203), and the outer side of the lampshade (203) is attached to the roller surface of the receiving rollers (304).

6. The tunnel curing oven of uniform curing effect according to claim 5, characterized in that: A mounting hoop (301a) is fixedly sleeved inside the window (301). The mounting hoop (301a) is a semi-circular arc structure with the opening facing upward. A sleeve shaft (301a-1) is rotatably installed between the two sides of the upper end of the mounting hoop (301a). A conveyor belt (301a-2) is sleeved between the two sleeve shafts (301a-1).

7. The tunnel curing oven with uniform curing effect according to claim 6, characterized in that: A drive motor (101) is provided below the outer casing (1), and a drive wheel (101a) is fixedly sleeved on the output shaft of the drive motor (101). The side of the drive wheel (101a) is in contact with the lampshade (203).

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