Hot bending machine heating device with IR lamp as heat source

Abstract

The utility model discloses a hot bending machine heating device with an IR lamp as a heat source. The hot bending machine heating device comprises a lamp tube, a lampshade is arranged above the lamp tube, a mounting plate is arranged above the lampshade, and a cooling mechanism is arranged in the lampshade. A screw is arranged in the middle of the upper end of the mounting plate, a lifting plate is arranged on the screw, the middle of the lifting plate is matched with the screw, and a lifting rod is fixedly connected to the end of the lifting plate and penetrates through the mounting plate to be connected with the lampshade; the hot bending machine heating device with the IR lamp as the heat source is reliable in use, even in temperature distribution and capable of improving product quality.

Description

Technical Field

[0001] The utility model belongs to the field of glass forming equipment, and specifically relates to a heating device for a heat bending machine using an IR lamp as a heat source. Background Art

[0002] The heat bending machine is the core equipment for 3D glass production, and its heating system directly determines the molding accuracy and manufacturing capacity of the product. Infrared lamps are commonly used as heat source supply devices in heat bending machine equipment, but the infrared IR lamps currently on the market have a "heat collection phenomenon", which causes low temperatures at both ends of the axis and high temperatures in the middle. For constant curvature glass, uneven temperature can easily cause uneven curvature of the product, making it difficult to ensure the curvature radius and contour of the product. At present, the lampshade in the heat bending machine, as the insulation structure of the lamp tube, is easily deformed by the high temperature of the lamp tube, which not only affects the insulation performance of the lampshade, but also makes the entire mechanism unusable, affecting the production process.

[0003] The utility model patent with announcement number CN217628111U disclosed on October 21, 2022, a curved glass processing mold and a 3D glass hot bending machine. The curved glass processing mold includes a mold body for supporting glass and a processing part detachably connected to the mold body, wherein the processing part includes an auxiliary positioning member for positioning the glass on the mold body and an auxiliary forming member limited by the auxiliary positioning member, and the auxiliary forming member is configured to press down the softened glass positioned on the mold body so that the glass is hot bent along the surface shape of the mold body. The curved glass processing mold and the 3D glass hot bending machine cannot improve the uniformity of temperature and cannot improve the quality of glass products. Utility Model Content

[0004] The utility model aims to provide a heating device for a heat bending machine using an IR lamp as a heat source, which is reliable in use, has uniform temperature distribution and improves product quality, in view of the deficiencies in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] This kind of hot bending machine heating device using IR lamp as heat source includes a lamp tube, a lampshade is arranged above the lamp tube, a mounting plate is arranged above the lampshade, and a cooling mechanism is arranged inside the lampshade; a screw is arranged in the middle of the upper end of the mounting plate, a lifting plate is arranged on the screw, the middle of the lifting plate cooperates with the screw, a lifting rod is fixedly connected to the end of the lifting plate, and the lifting rod passes through the mounting plate and is connected to the lampshade; a clamp is connected to the bottom of the lampshade, and the clamp clamps the two ends of the lamp tube.

[0007] The cooling mechanism comprises a cooling pipeline, which is arranged inside the lampshade. Both ends of the cooling pipeline are connected with return pipes, which are arranged inside the lifting rod.

[0008] A filament is arranged in the lamp tube, and the filament is spiral-shaped. The density of the filament at both ends of the lamp tube is greater than the density of the filament in the middle of the lamp tube.

[0009] A reflecting layer is arranged at the bottom of the lampshade.

[0010] The cooling pipelines are symmetrically arranged in the lampshade, and the cooling pipelines near the end and the middle of the lampshade are U-shaped structures.

[0011] Limiting rods are arranged at both ends of the lampshade.

[0012] A mounting seat is provided at the upper end of the mounting plate, and the lifting rod passes through the mounting seat. The lifting rod is symmetrically arranged with respect to the screw rod.

[0013] A support rod is connected between the clamping blocks, and the support rod is arranged horizontally.

[0014] The technical effect of the utility model is as follows: the heating device of the heat bending machine using the IR lamp as the heat source of the utility model is adopted, and the lifting and lowering of the lamp tube is realized by designing the screw rod, which meets the adjustment of the irradiation range and the radiation amount and the production requirements of different products. At the same time, the winding density of the filament in the lamp tube is reasonably designed to ensure the uniformity of temperature, so that the product is easier to form and the curvature is more uniform; a cooling mechanism is arranged inside the lamp tube, which has the advantages of compact structure and small space occupation. Cooling water is introduced into the cooling pipeline to cool the lamp tube in time to prevent the lamp tube from being deformed due to high temperature, thereby ensuring the reliable use of the lamp tube and increasing the service life of the lamp tube. The lower surface of the lamp tube is mirror-treated to realize the reflection of light, thereby increasing the directional radiation amount and reducing energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] This specification includes the following drawings, which show the following contents:

[0016] Figure 1 It is a schematic diagram of the structure of the heating device of the heat bending machine of the utility model using the IR lamp as the heat source;

[0017] Figure 2 It is a schematic diagram of the filament density of the utility model;

[0018] Figure 3 It is a cross-sectional view of the lamp tube of the utility model.

[0019] The markings in the figure are: 1. lamp tube; 2. lampshade; 3. mounting plate; 4. screw; 5. lifting plate; 6. lifting rod; 7. clamping block; 8. return pipe; 9. cooling pipeline; 10. filament; 11. mounting seat; 12. support rod; 13. limit rod; 14. reflective layer. DETAILED DESCRIPTION

[0020] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0021] like Figures 1 to 3 As shown, the heating device of the hot bending machine using the IR lamp as the heat source includes a lamp tube 1, a lampshade 2 is arranged above the lamp tube 1, a mounting plate 3 is arranged above the lampshade 2, and a cooling mechanism is arranged inside the lampshade 2; a screw rod 4 is arranged in the middle of the upper end of the mounting plate 3, a lifting plate 5 is arranged on the screw 4, the middle of the lifting plate 5 cooperates with the screw 4, a lifting rod 6 is fixedly connected to the end of the lifting plate 5, and the lifting rod 6 passes through the mounting plate 3 and is connected to the lampshade 2; a clamping block 7 is connected to the bottom of the lampshade 2, and the clamping block 7 clamps the two ends of the lamp tube 1.

[0022] The heating device of the hot bending machine avoids the "heat collection phenomenon" by controlling the winding state of the IR lamp filament 10, and optimizes and upgrades the heating system with the help of the lampshade 2 structure and the cooling system. The lifting and lowering of the lampshade 2 is realized by the screw 4 transmission. The IR lamp is fixed on the lampshade 2 by the clamp 7, thereby driving the IR lamp to achieve position adjustment. The IR lamp adjusts the irradiation range of the lamp tube 1 as the height of the lampshade 2 changes, which can meet the production requirements of different products; the lampshade 2 can be made into a certain curvature and set with a reflective layer 14, which can concentrate the light in the processing range of the mold, increase the regional heat, and improve the stable uniformity; the lifting rod 6 is connected to the lampshade 2 to realize the lifting and lowering of the lampshade 2, and the lifting rod 6 provides a guiding role for the lifting and lowering of the lampshade 2 to ensure that the lifting and lowering direction of the lampshade 2 is vertical and accurate.

[0023] like Figure 3 As shown, the cooling mechanism includes a cooling pipeline 9, which is arranged inside the lampshade 2. Both ends of the cooling pipeline 9 are connected with a return pipe 8, which is arranged inside the lifting rod 6. The cooling water passing through the cooling pipeline 9 inside the lampshade 2 can achieve a constant temperature of the lampshade 2, and prevent the lampshade 2 from being deformed at high temperature due to absorbing infrared radiation. The return pipe 8 is designed inside the lifting rod 6, so that the return pipe 8 can move synchronously with the lifting rod 6, so as to adapt to the height change of the lampshade 2 and the lamp tube 1. At the same time, the lifting rod 6 provides a reliable protection effect for the return rod, and also reduces the number of structural parts, thereby improving the compactness of the structure of the device.

[0024] like Figure 2 As shown, a filament 10 is arranged in the lamp tube 1, and the filament 10 is spiral-shaped. The density of the filament 10 at both ends of the lamp tube 1 is greater than that of the filament 10 in the middle of the lamp tube 1. The spiral-shaped filament 10 extends the path of the filament 10 and increases the heat radiation per unit area. The density of the filament 10 can be adjusted according to production conditions. The winding density of the filament 10 at both ends of the lamp tube 1 is 1.5-2 times that of the middle. The IR lamp tube 1 is a lamp tube 1 with customized power. By adjusting the density of the filament 10 at different positions, the power uniformity of the IR lamp is controlled.

[0025] like Figure 1 As shown, a reflective layer 14 is provided at the bottom of the lampshade 2. The lower surface of the lampshade 2 is mirror-finished to form a reflective layer 14 that can reflect the light source, increase the directional radiation, and reflect as much of the IR lamp radiation as possible onto the mold, thereby realizing the positive utilization of energy to the greatest extent.

[0026] like Figure 3 As shown, the cooling pipeline 9 is symmetrically arranged in the lampshade 2, and the cooling pipeline 9 near the end and the middle of the lampshade 2 is a U-shaped structure. The above structure prolongs the flow path of the cooling pipeline 9 in the lampshade 2, so that the cooling water can fully exchange heat with the lampshade 2, ensuring the uniformity of cooling of various parts of the lampshade 2. The setting of the cooling pipeline 9 enables the lampshade 2 to cool down in time, avoiding deformation due to high temperature, thereby prolonging the service life of the lampshade 2.

[0027] like Figure 1 As shown, limit rods 13 are provided at both ends of the lampshade 2. The limit rods 13 are used to limit the maximum height of the lampshade 2 and the lamp tube 1, which can prevent the lampshade 2 from touching the mounting plate 3 and being damaged. When the upper end of the limit rod 13 abuts against the bottom of the mounting plate 3, the lampshade 2 reaches the maximum height.

[0028] like Figure 1 As shown, a mounting seat 11 is provided at the upper end of the mounting plate 3, and the lifting rod 6 passes through the mounting seat 11, and the lifting rod 6 is symmetrically arranged about the screw rod 4. The mounting seat 11 is used to reduce the friction generated by the lifting rod 6 passing through, and reduce the movement resistance. The lifting rods 6 arranged in pairs can improve the stability of the lamp tube 1 during the lifting process. Two or four lifting rods 6 can be provided to ensure that the lampshade 2 is level before and after lifting.

[0029] like Figure 1 As shown, a support rod 12 is connected between the clamping blocks 7, and the support rod 12 is arranged horizontally. The support rod 12 can stabilize the position of the clamping blocks 7, prevent the clamping blocks 7 from shaking, and thus ensure that the lamp tube 1 is horizontal and stable.

[0030] When the heating device is produced: the IR lamp provides the heat source, the two ends of the lamp tube 1 emit strong and dazzling light, and the middle emits a relatively soft light. The high temperature at the two ends of the lamp tube 1 is scattered around and gathered in the middle part, so that the total heat in the middle part of the lamp tube 1 is consistent with that at the two ends. Under this heat source distribution, the product absorbs heat evenly, the curvature is smooth, and it is easier to form. At the same time, cooling water is passed into the lampshade 2 to continuously cool the lampshade 2 to prevent it from being deformed by high temperature and ensure the continuous use of the lampshade 2.

[0031] The heating device of the hot bending machine using the IR lamp as the heat source realizes the lifting and lowering of the lamp tube 1 by designing the screw 4, which meets the adjustment of the irradiation range and the radiation amount and the production requirements of different products. At the same time, by reasonably designing the winding density of the filament 10 in the lamp tube 1, the temperature uniformity and consistency are ensured, making the product easier to form and the curvature more uniform; a cooling mechanism is arranged inside the lampshade 2, which has the advantages of compact structure and small space occupation. Cooling water is passed through the cooling pipeline 9 to cool the lampshade 2 in time to prevent the lampshade 2 from being deformed due to high temperature, thereby ensuring the reliable use of the lampshade 2 and increasing the service life of the lamp tube 1. The lower surface of the lampshade 2 is treated with a mirror surface to realize the reflection of light, thereby increasing the directional radiation amount and reducing energy loss.

[0032] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A heating device for a heat bending machine using an IR lamp as a heat source, characterized in that: The invention comprises a lamp tube (1), a lampshade (2) is arranged above the lamp tube (1), a mounting plate (3) is arranged above the lampshade (2), and a cooling mechanism is arranged inside the lampshade (2); a screw rod (4) is arranged in the middle of the upper end of the mounting plate (3), a lifting plate (5) is arranged on the screw rod (4), the middle of the lifting plate (5) cooperates with the screw rod (4), a lifting rod (6) is fixedly connected to the end of the lifting plate (5), and the lifting rod (6) passes through the mounting plate (3) and is connected to the lampshade (2); a clamping block (7) is connected to the bottom of the lampshade (2), and the clamping block (7) clamps the two ends of the lamp tube (1).

2. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 1, characterized in that: The cooling mechanism comprises a cooling pipeline (9), the cooling pipeline (9) is arranged inside the lampshade (2), and both ends of the cooling pipeline (9) are connected to a return water pipe (8), and the return water pipe (8) is arranged inside the lifting rod (6).

3. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 1 or 2, characterized in that: A filament (10) is arranged in the lamp tube (1), the filament (10) is spiral-shaped, and the density of the filament (10) at both ends of the lamp tube (1) is greater than the density of the filament (10) in the middle of the lamp tube (1).

4. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 3, characterized in that: A reflective layer (14) is provided at the bottom of the lampshade (2).

5. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 2, characterized in that: The cooling pipelines (9) are symmetrically arranged in the lampshade (2), and the cooling pipelines (9) close to the ends and the middle of the lampshade (2) are U-shaped structures.

6. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 4, characterized in that: Limiting rods (13) are provided at both ends of the lampshade (2).

7. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 1, characterized in that: A mounting seat (11) is provided at the upper end of the mounting plate (3), the lifting rod (6) passes through the mounting seat (11), and the lifting rod (6) is symmetrically arranged with respect to the screw rod (4).

8. The heating device for a heat bending machine using an IR lamp as a heat source according to claim 1, characterized in that: A support rod (12) is connected between the clamping blocks (7), and the support rod (12) is arranged horizontally.

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