Light-source-free paint layer curing device

Abstract

The utility model belongs to the technical field of paint layer curing, and discloses a light-source-free paint layer curing device, which is arranged at a preset distance from a paint layer and comprises an insulating support layer, a conductive layer and a carbon nanotube film heating layer, the conductive layer is laid on the surface of one side of the insulating supporting layer; and the carbon nanotube film heating layer is arranged on the conductive layer, forms a circuit loop with the conductive layer, and is used for generating heat and radiating infrared light waves when being electrified so as to cure the paint layer. The utility model discloses a light-source-free paint layer curing device which adopts a carbon nano tube film heating technology, the electric-heat conversion rate is as high as 99.95%, and the electric energy loss is obviously reduced. According to the device, through medium-long wave far infrared radiation, no light source directly acts on a paint layer, uniform curing from inside to outside is achieved, and heat loss is reduced. The curing time is shortened to 1 / 3, the adhesive force and firmness of a paint layer are greatly improved, hollowing is effectively prevented, the overall quality of a product is improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] The utility model discloses a light - free paint layer curing device, belonging to the technical field of paint layer curing. Background Art

[0002] In today's rapidly developing industrial technology era, in all fields of manufacturing, especially in high - end manufacturing industries such as aviation, automotive, and shipbuilding, the pursuit of product quality has reached an unprecedented height. These industries not only require products to have excellent performance but also emphasize the beauty and durability of their appearance to meet the growing consumer demands in the market. To achieve this goal, the surface treatment and protection of products are particularly important. Among them, spraying a paint layer, as a key link, not only plays a role in protecting the base material from corrosion and wear but also undertakes the important tasks of beautifying the appearance and increasing the added value of products.

[0003] Although traditional paint layer curing methods have their own characteristics, they all have significant defects, which limit the improvement of production efficiency and environmental protection performance. For example, chemical curing agents can promote the cross - linking of paint layers, but the curing agents themselves often contain volatile organic compounds harmful to the human body, posing a threat to the environment and the health of operators; at the same time, although their curing speed is fast, the formed paint film is often not firm enough and is prone to peeling or cracking. The ultraviolet curing technology is environmentally friendly and has a relatively fast curing speed, but it requires ultraviolet irradiation of a specific wavelength and has limited penetration ability, resulting in poor curing effects for thick or multi - layer coatings; in addition, the energy consumption of ultraviolet light sources is relatively high, increasing production costs. Heating the paint layer with visible light or infrared light, although the heating components are easy to replace, are easily damaged during transportation and replacement; more importantly, its curing time is long, and it is difficult to perform secondary paint spraying during the curing process, seriously affecting the continuity and flexibility of the production line.

[0004] Facing the fierce market competition and the increasing quality requirements of consumers, enterprises in industries such as aviation, automotive, and shipbuilding are urgently in need of a new curing technology that can not only efficiently cure paint layers but also ensure product quality and environmental protection performance. Summary of the Invention

[0005] The utility model overcomes the deficiencies of the prior art and proposes a light - free paint layer curing device. The curing device is arranged at a preset distance from the paint layer and includes an insulating support layer, a conductive layer, and a carbon nanotube thin - film heating layer; the conductive layer is laid on one side surface of the insulating support layer;

[0006] The carbon nanotube thin - film heating layer is arranged on the conductive layer and forms a circuit loop with the conductive layer, and is used to generate heat and radiate infrared light waves when powered on to cure the paint layer.

[0007] Preferably, the carbon nanotube thin - film heating layer includes multiple carbon nanotube thin films;

[0008] The multiple carbon nanotube films are arranged on the conductive layer in series or parallel, and form a circuit with the conductive layer.

[0009] Preferably, the multiple carbon nanotube films are bonded to the conductive layer by conductive silver paint.

[0010] Preferably, a pressing plate layer is further included;

[0011] The pressing plate layer is arranged on the surface of the carbon nanotube film heating layer away from the conductive layer and is used as a protective layer.

[0012] Preferably, a fixing clip is further included;

[0013] The fixing clip is a detachable locking structure;

[0014] The fixing clip is arranged at the edge of the insulating support layer and the pressing plate layer.

[0015] Preferably, the pressing plate layer is uniformly provided with hollow-outs.

[0016] Preferably, a temperature measuring device and a temperature controller are further included;

[0017] The temperature measuring device is arranged between the carbon nanotube film heating layer and the insulating support layer and is connected to the temperature controller;

[0018] The temperature controller is electrically connected to the conductive layer.

[0019] Preferably, the materials of the insulating support layer and the pressing plate layer are selected from quartz, artificial stone, ceramic or mica.

[0020] Preferably, a support frame is further included;

[0021] The support frame is arranged on the surface of the insulating support layer away from the conductive layer and is used to adjust the height and angle of the curing device.

[0022] Beneficial effects: The utility model adopts the carbon nanotube film heating technology, with an electro-thermal conversion rate as high as 99.95%, greatly reducing the conversion loss from electrical energy to heat energy and achieving efficient utilization of energy. This characteristic not only reduces the operating cost but also conforms to the current environmental protection trend of energy conservation and emission reduction. Through the carbon nanotube surface heating and mid- and long-wave far-infrared radiation (wavelength of 6-14 microns) of the utility model, which belongs to the mid- and long-waves and has no light source, it can directly act on the target paint layer to achieve uniform curing of the paint layer from the inside out, reducing the ineffective dissipation of heat and the impact on the environment. The utility model enables the paint layer to be quickly cured under the condition of uniform heating, not only shortening the curing time to one-third of the original, but also significantly improving the adhesion and firmness of the paint layer, effectively avoiding the occurrence of the hollowing phenomenon, and enhancing the overall quality and service life of the product. Description of the Drawings

[0023] Figure 1 It is a schematic structural diagram of the utility model;

[0024] Figure 2 It is a schematic diagram of the hollowing of the pressing plate layer of the utility model.

[0025] In the figure: 1, insulating support layer; 2, carbon nanotube film heating layer; 3, pressing plate layer; 3-1, hollowing structure; 4, fixing clamp; 5, power cord. Detailed Embodiment

[0026] In the following description, specific details such as specific system structures and technologies are presented for the purpose of illustration rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, those skilled in the art should clearly understand that the utility model can also be implemented in other embodiments without these specific details. In other cases, the detailed descriptions of well-known systems and devices are omitted to avoid unnecessary details from interfering with the description of the utility model.

[0027] The following further describes the preferred technical solutions of the utility model in conjunction with the drawings and embodiments.

[0028] A paint layer curing device without a light source is provided at a preset distance from the paint layer. It includes an insulating support layer 1, a conductive layer, and a carbon nanotube film heating layer 2. The conductive layer is laid on one side surface of the insulating support layer 1. The carbon nanotube film heating layer 2 is arranged on the conductive layer and forms an electrical circuit loop with the conductive layer, and is used to generate heat and radiate infrared light waves when powered on to cure the paint layer.

[0029] Furthermore, the carbon nanotube film heating layer 2 includes multiple carbon nanotube films. The multiple carbon nanotube films are arranged on the conductive layer in a series or parallel manner and form a loop with the conductive layer.

[0030] Further, multiple carbon nanotube films are bonded to the conductive layer by conductive silver paint.

[0031] As Figure 1-2 shown, a technical solution provided by the present utility model specifically includes an insulating support layer 1, a conductive layer, and a carbon nanotube film heating layer 2; wherein, the carbon nanotube film heating layer 2 includes multiple carbon nanotube films, the carbon nanotube films are prepared by a floating vapor deposition method, each carbon nanotube film is strip-shaped, and the size is determined according to the preset size of the curing device.

[0032] The conductive layer includes electrodes, wires, and thermocouples.

[0033] In this embodiment, the conductive layer is specifically a copper foil, the copper foil is laid on the insulating support layer 1, and is connected in series and parallel with multiple carbon nanotube films to form a circuit, and two power supply wires 5 are led out from the circuit. The copper foil and the two power supply wires 5 form the conductive layer, and the two power supply wires 5 are used to connect to a power supply. The copper foil is bonded to the carbon nanotube film by conductive silver paint.

[0034] Further, it further includes a pressing plate layer 3; the pressing plate layer 3 is arranged on the surface of the carbon nanotube film heating layer 2 away from the conductive layer.

[0035] In this embodiment, it further includes a pressing plate layer 3. The pressing plate layer 3 is arranged on the surface of the carbon nanotube film heating layer 2 away from the conductive layer. The pressing plate layer 3 is used to protect the carbon nanotube film heating layer, provide stable support for the carbon nanotube film heating layer, and ensure that it remains flat and stable during operation; the pressing plate layer 3 has good insulation to prevent electrical safety problems such as current leakage or short circuit.

[0036] Further, the pressing plate layer 3 is uniformly provided with hollow openings.

[0037] To improve the curing efficiency and promote uniform heat distribution, a hollow opening structure 3-1 is uniformly provided on the pressing plate layer 3. These hollow opening structures 3-1 can be in shapes such as circular, square, or diamond, and are specifically determined according to actual needs and process requirements. The hollow design not only reduces the weight of the pressing plate layer 3, but also increases air circulation, which helps heat to quickly penetrate to the surface paint layer and inside of the device to be cured, improving the curing speed and uniformity. During specific implementation, laser cutting technology is used to precisely process the required-shaped hollow openings on the pressing plate layer 3 to ensure smooth edges without burrs and avoid damaging the workpiece. As Figure 2 shown, in this embodiment, there are two large-area hollow opening structures 3-1 on the pressing plate layer 3, and the hollow opening structure 3-1 is rectangular.

[0038] Further, the materials of the insulating support layer 1 and the pressing plate layer 3 are selected from quartz, artificial stone, ceramics, or mica.

[0039] To ensure the safe use of the device, the materials of the insulation support layer 1 and the pressing plate layer 3 are selected from quartz, artificial stone, ceramics or mica. These materials all have good insulation performance, high temperature resistance and mechanical strength, and can meet the working requirements of the curing device in a high temperature environment. During specific implementation, the most suitable material is selected for processing and production according to specific process conditions and cost considerations.

[0040] Furthermore, it also includes a fixing clip 4; the fixing clip 4 is a detachable locking structure; the fixing clip 4 is arranged at the edge of the insulation support layer 1 and the pressing plate layer 3.

[0041] Since the materials of the insulation support layer 1 and the pressing plate layer 3 are selected from quartz, ceramics or mica, etc., during actual production, slippage is likely to occur between the insulation support layer 1 and the pressing plate layer 3; to ensure that the carbon nanotube film heating layer 2 can be firmly clamped in the device and prevent displacement or detachment during the heating and curing process. A fixing clip 4 is arranged at the edge of the insulation support layer 1 and the pressing plate layer 3, and the fixing clip 4 is designed with a detachable locking structure, which is convenient for adjustment and installation according to the size and shape of the workpiece. During specific implementation, the fixing clip 4 is made of high-strength stainless steel material and is fixed to the edge of the insulation support layer 1 and the pressing plate layer 3 by screws or snap fasteners. The fixing clip 4 is internally provided with a soft rubber pad to protect the surfaces of the insulation support layer 1 and the pressing plate layer 3 from damage. During installation, first place the carbon nanotube film heating layer 2 on the insulation support layer 1, then set the pressing plate layer 3 on the carbon nanotube film heating layer 2, and then use the fixing clip 4 to clamp it from all around to ensure that the curing device is stable and does not shake.

[0042] Furthermore, it also includes a temperature measuring device and a temperature controller; the temperature measuring device is arranged between the carbon nanotube film heating layer 2 and the insulation support layer and is connected to the temperature controller; the temperature controller is electrically connected to the conductive layer.

[0043] To ensure the temperature control accuracy during the curing process, the device is equipped with a temperature measuring device and a temperature controller. The temperature measuring device selects a high-precision thermistor or an infrared temperature measuring sensor and is directly installed on the surface of the carbon nanotube film heating layer 2 to monitor the heating temperature in real time. The temperature controller is electrically connected to the temperature measuring device and the conductive layer, and automatically adjusts the current magnitude of the conductive layer according to the preset temperature curve, thereby controlling the heating power of the heating layer and achieving precise temperature control. During specific implementation, the temperature controller is built-in with a PID algorithm, which can quickly respond to temperature changes and make adjustments to ensure that the curing temperature always remains within the optimal range. This is not shown in this embodiment.

[0044] Furthermore, it also includes a support frame; the support frame is arranged on the surface of the insulation support layer 1 away from the conductive layer and is used to adjust the height and angle of the curing device.

[0045] To facilitate users to adjust the height and angle of the curing device according to actual needs, the device is also equipped with an adjustable support frame. The support frame is made of high-strength aluminum alloy material and has sufficient load-bearing capacity and stability. There are multiple adjustment holes and locking devices on the support frame, and users can select appropriate hole positions for installation and adjustment according to their needs. Specifically, when implemented, the support frame is designed as a foldable or telescopic structure for easy carrying and storage. At the same time, anti-slip pads or suction cups and other accessories are installed at the bottom of the support frame to improve the stability and safety of the device during use. This is not shown in this embodiment.

[0046] After the processing and preparation of the above components are completed, the overall assembly is carried out. First, components such as the insulation support layer 1, the conductive layer, the carbon nanotube thin film heating layer 2, and the pressing plate layer 3 are stacked and fixed in sequence according to the design requirements; then accessories such as the temperature measuring device, the temperature controller, and the fixing clamp 4 are installed; finally, the support frame is installed and adjusted to a suitable height and angle. The device is set at the preset position of the paint layer to be cured, and the hollow surface of the pressing plate layer 3 faces the paint layer to cure the paint layer.

[0047] In another embodiment, the shapes of the insulation support layer 1 and the pressing plate layer 3 match the shape of the workpiece to be cured, so that when curing and drying, the distance between the carbon nanotube thin film heating layer 2 and each position of the workpiece to be cured is the same, thereby making the radiation uniform.

[0048] The utility model adopts the carbon nanotube thin film heating technology, and the electro-thermal conversion rate is as high as 99.95%, which greatly reduces the conversion loss from electric energy to heat energy and realizes the efficient utilization of energy. This characteristic not only reduces the operating cost but also conforms to the current environmental protection trend of energy conservation and emission reduction. Through the carbon nanotube surface heating and medium-long wave far-infrared radiation (wavelength up to 6 - 14 microns) of the utility model, it belongs to the medium-long wave and has no light source, which can directly act on the target paint layer to achieve uniform curing of the paint layer from the inside out, reducing the ineffective loss of heat and the impact on the environment. The utility model enables the paint layer to be quickly cured under the condition of uniform heating, not only shortening the curing time to one-third of the original, but also significantly improving the adhesion and firmness of the paint layer, effectively avoiding the occurrence of the hollowing phenomenon, and enhancing the overall quality and service life of the product.

[0049] The above are only several embodiments of the utility model and do not impose any form of limitation on the utility model. Although the utility model is disclosed as above with preferred embodiments, it is not used to limit the utility model. Any person skilled in the relevant art, without departing from the technical solution of the utility model, makes some changes or modifications using the disclosed technical content, which are equivalent to equivalent implementation cases and all fall within the scope of the technical solution.

Claims

1. A paint layer curing device without a light source, characterized in that The curing device is arranged at a preset distance from the paint layer and includes an insulating support layer, a conductive layer, and a carbon nanotube thin film heating layer; The conductive layer is laid on one surface of the insulating support layer; The carbon nanotube thin film heating layer is arranged on the conductive layer, forming an electrical circuit loop with the conductive layer, and is used to generate heat and radiate infrared light waves when powered on to cure the paint layer.

2. The light source-free paint layer curing device according to claim 1, characterized in that, The carbon nanotube thin film heating layer includes multiple carbon nanotube thin films; The multiple carbon nanotube thin films are arranged on the conductive layer in series or parallel and form a loop with the conductive layer.

3. The light source-free paint layer curing device according to claim 2, wherein The multiple carbon nanotube thin films and the conductive layer are bonded by conductive silver paint.

4. The light source-free paint layer curing device according to claim 1, characterized in that, It further includes a pressing plate layer; The pressing plate layer is arranged on the surface of the carbon nanotube thin film heating layer away from the conductive layer and is used as a protective layer.

5. The light source-free paint layer curing device according to claim 4, wherein, It further includes a fixing clip; The fixing clip is a detachable locking structure; The fixing clip is arranged at the edge of the insulating support layer and the pressing plate layer.

6. The light source-free paint layer curing device according to claim 4, characterized in that, The pressing plate layer is evenly provided with hollow-outs.

7. The light source-free paint layer curing device according to claim 1, wherein It further includes a temperature measuring device and a temperature controller; The temperature measuring device is arranged between the carbon nanotube thin film heating layer and the insulating support layer and is connected to the temperature controller; The temperature controller is electrically connected to the conductive layer.

8. The light source-free paint layer curing device according to claim 4, wherein, The materials of the insulating support layer and the pressing plate layer are selected from quartz, artificial stone, ceramics, or mica.

9. The paint layer curing device without a light source according to claim 1, characterized in that, It further includes a support frame; The support frame is arranged on the surface of the insulating support layer away from the conductive layer and is used to adjust the height and angle of the curing device.

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