A spotlight heating device for online processing of a plate
By using a concentrating heating device combining a reflector and a plano-convex lens, the problems of low energy utilization and large equipment space occupation in board drying are solved, achieving efficient and energy-saving paint layer curing, and adapting to high-speed online production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU HAWK MASCH CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-07
AI Technical Summary
Existing board drying technologies have low energy efficiency, are difficult to achieve deep curing, and traditional drying equipment occupies a large space, making it difficult to meet the needs of high-speed online production.
A concentrating heating device employing a combination of a reflector and a plano-convex lens uses the reflector to reflect light and the plano-convex lens to focus light, thereby shortening the focusing distance, reducing heat loss, improving energy efficiency, and achieving uniform heating.
It significantly improves energy efficiency, shortens drying time, ensures uniform curing of the coating, avoids heat waste and equipment space occupation, and adapts to the needs of high-speed production lines.
Smart Images
Figure CN224463113U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sheet metal processing, and specifically relates to a concentrating heating device for online sheet metal processing. Background Technology
[0002] With the widespread adoption of high-speed automated production lines in the wood flooring manufacturing industry, the fine finishing of board edges (especially the painting process after chamfering) places higher demands on the drying process. Painted boards need to cure quickly to ensure strong paint adhesion and achieve ideal physicochemical properties. However, current mainstream traditional drying technologies (such as heating elements or hot air circulation) have the following problems:
[0003] (1) Low energy utilization: The heat energy is widely dissipated and it is difficult to concentrate it on the target area, resulting in energy waste.
[0004] (2) Insufficient curing effect: Due to the continuous movement of the board and the limited drying time, the traditional method can only achieve surface drying, and the deep curing is not sufficient, which can easily lead to paint film peeling or scratches, affecting product quality.
[0005] Although concentrated light heating technology can improve drying efficiency, its application is limited by problems such as long focusing distance and equipment space interference, making it difficult to meet the real-time drying needs of high-speed online production.
[0006] Therefore, the industry urgently needs a new drying technology that is efficient, energy-saving, and adaptable to high-speed, compact production lines to solve the bottleneck problems of existing processes. Utility Model Content
[0007] To address the aforementioned problems, this utility model provides a focusing heating device for online processing of sheet materials. By combining a reflector and a plano-convex lens, it can not only shorten the focusing distance of light and save the space required for the equipment, but also effectively reduce heat loss, significantly improve energy utilization efficiency, and shorten drying time.
[0008] The main technical solution adopted in this utility model is as follows:
[0009] A focusing heating device for online processing of sheet metal includes a base, a reflector, a heating tube, and a plano-convex lens assembly. The reflector is mounted on the base, and the heating tube is fixedly mounted at both ends on the side support plates of the base and located inside the reflector. The plano-convex lens assembly is mounted on the base, and the convex surface of the lens assembly faces the heating tube to focus light.
[0010] Preferably, the inner surface of the reflector is an elliptical body of revolution, and the heating tube is located at the first focal point of the reflector, while the plano-convex lens assembly is located between the first and second focal points of the reflector.
[0011] Preferably, the back of the reflector has several slots arranged axially for inserting and installing heat dissipation fins.
[0012] Preferably, the base also includes an upper cover plate, a lower cover plate, and side support plates. Side support plates are fixedly provided at both ends of the base. The upper cover plate and the lower cover plate are respectively installed on the top and bottom surfaces of the base, and there is a gap between the upper and lower cover plates to allow focused light to pass through.
[0013] Preferably, both the upper and lower cover plates are curved panels, and the upper and lower cover plates are relatively curved, gradually approaching each other at the end away from the base to form a gap for focused light to pass through.
[0014] Preferably, one end of the upper cover plate is snapped onto the base, and rollers are provided on both sides of the upper cover plate for abutting against the base. The upper cover plate and the lower cover plate are installed in the same way.
[0015] Preferably, each of the two side support plates has several ventilation holes, and an air pipe connector is installed on one of the side support plates for connecting compressed air.
[0016] Preferably, the plano-convex lens assembly includes an upper lens bracket, a lower lens bracket, and a plano-convex lens. The upper lens bracket and the lower lens bracket are respectively inserted and installed on the upper and lower end faces of the base. The bottom surface of the upper lens bracket and the top surface of the lower lens bracket are provided with corresponding lens slots for inserting the plano-convex lens.
[0017] Beneficial effects: This utility model provides a focusing heating device for online processing of sheet materials, which has the following advantages:
[0018] (1) In this utility model, the combination of reflector and plano-convex lens can not only shorten the focusing distance of light, reduce the space occupied by the equipment, and reduce the heat loss during the focusing process, but also concentrate the heat energy to the painted part through optical focusing, effectively reduce heat loss, significantly improve energy utilization efficiency, shorten drying time, and achieve fast and uniform drying and curing.
[0019] (2) In this utility model, heat dissipation fins are set on the back of the reflector for active heat dissipation, which avoids local high temperature caused by heat radiation absorption during the light-concentrating heating process of the reflector, which is conducive to extending the life of the component. At the same time, compressed air is used to quickly remove the hot air inside, avoiding heat accumulation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of Example 1 (one side support plate omitted);
[0021] Figure 2 This is a schematic diagram of the overall structure of Example 1 in its open state;
[0022] Figure 3 This is a partial structural diagram of Example 1;
[0023] Figure 4 This is a schematic diagram of the closed state of the upper cover plate in Example 1;
[0024] Figure 5 This is a schematic diagram of the upper cover plate in the open state of Embodiment 1;
[0025] Figure 6 This is a schematic diagram illustrating the working principle of Embodiment 1.
[0026] In the diagram: Base 1, Slot 1-1, Protruding end face 1-2, Insertion slot 1-3, Reflector 2, Slot 2-1, Heat dissipation fins 2-2, Heating tube 3, Plano-convex lens assembly 4, Upper lens bracket 4-1, Lower lens bracket 4-2, Plano-convex lens 4-3, Insertion block 4-4, Lens slot 4-5, Upper cover plate 5, Protruding end 5-1, Movable gap 5-2, Roller 5-3, Lower cover plate 6, Side support plate 7, Vent hole 7-1, Air pipe connector 7-2, Gap 8. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The description of the specific embodiments below is merely exemplary and should be understood as being used only to explain the present utility model, and not in any way to limit the present utility model or its application or usage.
[0028] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. Conversely, when an element is said to be "directly" connected to another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0029] In the description of this utility model, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example 1
[0030] like Figure 1-3 As shown, a focusing heating device for online processing of sheet metal includes a base 1, a reflector 2, a heating tube 3, and a plano-convex lens assembly 4. The reflector 2 is mounted on the base 1. The heating tube 3 is fixedly mounted at both ends on the side support plates 7 of the base 1 and located inside the reflector 2. The plano-convex lens assembly 4 is mounted on the base 1, with the convex surface of the lens facing the heating tube 3, for focusing light. In this invention, the focused light includes the light reflected by the reflector 2 and the light emitted by the heating tube 3.
[0031] In this embodiment 1, the inner surface of the reflector 2 is an elliptical body of revolution, and the heating tube 3 is located at the first focal point of the reflector. The plano-convex lens assembly 4 is located between the first and second focal points of the reflector 2. In this invention, the first focal point is a focal point close to the reflector 2. The specific focal length of the plano-convex lens assembly can be selectively set according to the actual required focusing distance, ensuring that the light focusing point of the plano-convex lens assembly 4 is located between the first and second focal points, achieving the preset focusing distance.
[0032] In this embodiment 1, in order to avoid excessive heat absorption by the reflector leading to local high temperature, several slots 2-1 are arranged on the back of the reflector 2 along the axial direction (which is parallel to the transport direction of the plate) for inserting and installing heat dissipation fins 2-2.
[0033] Furthermore, to prevent excessive internal temperature caused by heat dissipation from the heat sink fins, in this embodiment 1, several ventilation holes 7-1 are provided on both side support plates 7, and an air pipe connector 7-2 is installed on one side support plate 7 for connecting compressed air. This utility model achieves instant heat dissipation by continuously introducing compressed air into the cavity formed by the side support plates, base, and reflector, thereby improving heat dissipation efficiency.
[0034] To further ensure operational safety, this utility model also includes an upper cover plate 5, a lower cover plate 6, and a side support plate 7. The base 1 is fixedly provided with side support plates 7 at both ends. The upper cover plate 5 and the lower cover plate 6 are respectively installed on the top and bottom surfaces of the base 1, and there is a gap between the upper and lower cover plates to allow the focused light to pass through.
[0035] In this embodiment 1, both the upper cover plate 5 and the lower cover plate 6 are curved panels, and the upper cover plate 5 and the lower cover plate 6 are relatively curved, gradually approaching each other at the end away from the base 1 to form a gap 8 for the focused light to pass through. The upper cover plate and the lower cover plate are provided in this utility model to avoid light divergence and reduce heat loss, and to prevent the focused light from causing harm to workers.
[0036] To facilitate maintenance and adjustment of internal components, in this embodiment 1, the upper cover plate 5 is installed on the base 1 using a snap-fit method, and rollers 5-1 are provided on both sides of the upper cover plate 5 for abutting against the base. Specific structure Figure 4 and Figure 5 As shown: The upper cover plate 5 has a protruding end 5-1 at the mounting end, and the protruding end 5-1 is engaged with the slot 1-1 on the base 1 for snap-fit installation. A roller 5-3 is installed on the bottom surface of the upper cover plate 5 near the mounting end, and the roller 5-3 is engaged with the protruding end face 1-2 on the base 1 to abut against it, which helps to secure the upper cover plate 5 and prevent shaking.
[0037] like Figure 4 As shown, the upper cover 5 is in the closed state, and there is a movable gap 5-2 between the top surface of the base 1 and the top surface of the mounting end of the upper cover 5, providing space for the upper cover 5 to be opened. Figure 5 As shown, the upper cover 5 is in the open state. Under the action of force, the roller 5-3 is lifted upward along the raised end face 1-2. Under the restriction of the movable gap 5-2, the upper cover 5 is opened to a certain angle and then fixed. At this time, the roller 5-3 abuts against the raised end face 1-2, providing support for the upper cover. In addition, the upper cover of this utility model can also be kept in the open state with the help of manual support.
[0038] To facilitate replacement of the plano-convex lens assembly, in this embodiment 1, the plano-convex lens assembly is installed on the base using a plug-in method. The specific structure is as follows: Figure 2 As shown:
[0039] The plano-convex lens assembly 4 includes an upper lens holder 4-1, a lower lens holder 4-2, and a plano-convex lens 4-3. The upper lens holder 4-1 and the lower lens holder 4-2 are respectively inserted and installed on the upper and lower end faces of the base 1. Figure 2 As shown, the upper and lower end faces of the base 1 are provided with axial insertion slots 1-3. The upper lens bracket 4-1 and the lower lens bracket 4-2 are provided with axial insertion blocks 4-4 for installation in conjunction with the insertion slots 1-3. The bottom surface of the upper lens bracket 4-1 and the top surface of the lower lens bracket 4-2 are provided with corresponding lens slots 4-5 along the axial direction for inserting plano-convex lenses 4-3.
[0040] The plano-convex lens assembly 4 in this invention can be, but is not limited to, the above-described structure to achieve the installation of the plano-convex lens.
[0041] The working principle of this utility model is as follows:
[0042] like Figure 6As shown, the heating tube 3 is located at the first focal point of the reflector 2. The reflector reflects and focuses the light. Then, the light is further focused by the plano-convex lens before focusing, thereby changing the focusing path of the original focused light and shortening the focusing distance of the original focused light. This allows the light to be focused near the outside of the gap 8, forming a focused light for heating and drying the online conveyed plate.
[0043] like Figure 6 As shown, this invention achieves linear light field distribution through a composite focusing structure. The heating tube 3 is positioned at the first focal point of the reflector 2. The reflector first parabolically converges the radiated light to form an initial focused beam. Subsequently, a plano-convex lens assembly performs secondary optical focusing on the initial focused beam, shortening the original focusing path. This allows the beam to achieve axially extended linear focusing at a preset position between the first and second focal points (such as the extended region near the equipment gap 8), forming a high-energy-density linear light spot. This linear light spot can achieve uniform thermal radiation along the conveying direction of the plate, effectively meeting the high-efficiency drying requirements of moving plates in a continuous production line.
[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A concentrating heating device for online processing of sheet metal, characterized in that, The device includes a base, a reflector, a heating tube, and a plano-convex lens assembly. The reflector is mounted on the base, and the heating tube is fixed at both ends on the side support plates of the base and located inside the reflector. The plano-convex lens assembly is mounted on the base, and the convex surface of the lens assembly faces the side of the heating tube to focus light.
2. The concentrating heating device for online processing of sheet metal according to claim 1, characterized in that, The inner surface of the reflector is an elliptical body of revolution, and the heating tube is located at the first focal point of the reflector. The plano-convex lens assembly is located between the first focal point and the second focal point of the reflector.
3. The concentrating heating device for online processing of sheet metal according to claim 1, characterized in that, The back of the reflector has several slots arranged axially for inserting and installing heat dissipation fins.
4. The concentrating heating device for online processing of sheet metal according to claim 1, characterized in that, It also includes an upper cover plate, a lower cover plate, and side support plates. Side support plates are fixedly installed at both ends of the base. The upper cover plate and the lower cover plate are respectively installed on the top and bottom surfaces of the base, and there is a gap between the upper and lower cover plates to allow the focused light to pass through.
5. The concentrating heating device for online processing of sheet metal according to claim 4, characterized in that, Both the upper and lower cover plates are curved panels, and they are relatively curved, gradually approaching each other at the end away from the base to form a gap through which the focused light can pass.
6. The concentrating heating device for online processing of sheet metal according to claim 4, characterized in that, One end of the upper cover plate is snapped onto the base, and rollers are provided on both sides of the upper cover plate to abut against the base. The upper cover plate and the lower cover plate are installed in the same way.
7. The concentrating heating device for online processing of sheet metal according to claim 4, characterized in that, Several ventilation holes are provided on both sides of the side support plate, and an air pipe connector is installed on one side of the side support plate for connecting compressed air.
8. The concentrating heating device for online processing of sheet metal according to claim 1, characterized in that, The plano-convex lens assembly includes an upper lens bracket, a lower lens bracket, and a plano-convex lens. The upper lens bracket and the lower lens bracket are respectively inserted and installed on the upper and lower end faces of the base. The bottom surface of the upper lens bracket and the top surface of the lower lens bracket are provided with corresponding lens slots for inserting the plano-convex lens.