Transmission roller shaft head cooling mechanism for toughening furnace

Abstract

The utility model relates to a transmission roller shaft head cooling mechanism for a toughening furnace, which comprises a passage arranged in a framework of a lower furnace body, a fan connected with an inlet of the passage and an air hole arranged at the upper part of the framework of the lower furnace body and communicated with the passage, and the position of the air hole corresponds to the position of a supporting roller shaft head and faces the supporting roller shaft head; the number of the passages is two, the passages are respectively arranged in the frameworks on the two sides of the lower furnace body corresponding to the supporting roller shaft head, the number of the fans is at least two, and one passage is provided with at least one fan. The fan, the passages in the framework and the air holes form a cooling channel, air generated by rotation of the fan is sprayed out of the air holes through the passages in the framework, and the positions of the air holes correspond to the positions of the shaft heads of the supporting rollers, so that airflow sprayed out of the air holes is blown to the positions of the shaft heads, the shaft heads can be cooled, high-temperature deformation of the shaft heads is avoided, and the service life of the supporting rollers is prolonged. And meanwhile, the airflow can blow away heat flow emitted from the top and bottom of the furnace body, and heat accumulation at the head of the supporting roller shaft is reduced.

Description

Technical Field

[0001] This utility model relates to a cooling mechanism for the drive roller shaft of a tempering furnace. Background Technology

[0002] To strengthen glass, the commonly used physical tempering method involves heating the glass to near its softening point (around 650°C). At this temperature, the glass retains its original shape, but the particles within it begin to migrate, allowing for structural adjustment and rapid elimination of internal stress. This is followed by rapid cooling with air. Once the temperature reaches equilibrium, compressive stress is generated on the glass surface, and tensile stress is generated in the inner layers. This results in a uniformly and regularly distributed internal stress, thereby increasing the tensile strength of the glass as a brittle material and improving its bending and impact resistance. This softening process is typically carried out in a glass tempering furnace.

[0003] A glass tempering furnace consists of a heating furnace body and support rollers inside to support the glass. The heating temperature inside the furnace body is usually around 600℃ to 700℃. The middle support part of the support roller is inside the furnace body, while the two ends of the roller extend out of the furnace body. The middle support part inside the furnace body is made of high-temperature resistant material, so it has less deformation at high temperatures. However, the two ends of the support roller are made of steel. During the glass tempering process, the heat inside the furnace will rush along the gap between the support roller and the furnace body insulation layer to the steel ends of the support roller. Over time, this can easily cause the ends to loosen, thereby destroying the concentricity of the support roller and causing a decline in the quality of the produced glass.

[0004] Therefore, this situation needs to be improved to reduce the impact of heat dissipation on the support roller head. Summary of the Invention

[0005] This utility model provides a cooling mechanism for the drive roller shaft head of a tempering furnace. A passage is provided inside the frame of the lower furnace body, and air holes are opened at the corresponding support roller shaft head. A fan is provided, and the fan blows cold air out through the passage inside the frame and out through the air holes to cool the shaft head. At the same time, the airflow quickly dissipates the heat, reducing the time that heat stays at the shaft head and thus reducing the impact of the heat on the shaft head.

[0006] The specific technical solution of this utility model is as follows: a cooling mechanism for the transmission roller head of a tempering furnace, including a passage set inside the frame of the lower furnace body, a fan connected to the inlet of the passage, and an air hole set on the upper part of the frame of the lower furnace body that communicates with the passage. The position of the air hole corresponds to the position of the support roller head and faces the support roller head. There are two passages, which are respectively set in the frame on both sides of the lower furnace body corresponding to the support roller head. There are at least two fans, and at least one fan is provided for each passage.

[0007] An outer support bracket is fixed to the lower furnace body's frame. The support rollers are supported on the brackets at both ends via bearings. The shaft ends of the support rollers are positioned directly above the lower furnace body's frame, outside the furnace body. A cooling channel is formed by the fan, the passageway within the frame, and the air vents. Air generated by the fan's rotation is ejected through the passageway within the frame from the air vents, the positions of which correspond to the positions of the support roller shaft ends. This airflow from the air vents cools the shaft ends, preventing high-temperature deformation. Simultaneously, the airflow disperses heat radiating from between the upper and lower parts of the furnace body, reducing heat accumulation at the support roller shaft ends. The inlet of the passageway is the fan outlet, and the outlet is only at the air vent. The rest of the passageway is a closed structure, ensuring that airflow only exits from the air vent. The number of fans is selected based on the length of the passageway; if the passageway is long, the number of fans can be increased accordingly. Setting the passageway within the frame reduces the need for dedicated passageway components, simplifying the structure and reducing the number of parts.

[0008] Preferably, the frame of the lower furnace body includes two side frames, each side frame including a lower longitudinal beam, a vertical beam perpendicular to the lower longitudinal beam, and an upper longitudinal beam perpendicular to the vertical beam and parallel to the lower longitudinal beam, with passages provided inside the lower longitudinal beam, the vertical beam, and the upper longitudinal beam.

[0009] Preferably, the lower longitudinal beam, vertical beam, and upper longitudinal beam are all square tube structures. The lower and upper longitudinal beams are closed at both ends. A through hole is provided on the upper surface of the lower longitudinal beam corresponding to the position of the vertical beam. The lower end of the vertical beam is welded to the upper surface of the lower longitudinal beam. A through hole is provided on the lower surface of the upper longitudinal beam corresponding to the position of the vertical beam. The upper end of the vertical beam is welded to the lower surface of the upper longitudinal beam. The vertical beam seals the through holes on both the lower and upper longitudinal beams. The interior of the upper longitudinal beam communicates with the interior of the vertical beam through a through hole, and the interior of the lower longitudinal beam communicates with the interior of the vertical beam through a through hole. When the vertical beam is welded to the upper and lower longitudinal beams, the internal square hole of the vertical beam communicates with the through hole, and the end of the vertical beam is located around the through hole, forming a weld seal.

[0010] Preferably, the lower surface of the lower longitudinal beam is provided with a passage inlet, and the fan is connected to the passage inlet.

[0011] Preferably, the air holes are arranged in groups of two, with each group corresponding to the shaft end of a support roller. The shaft end of the support roller is cylindrical, and the two air holes in a group simultaneously cool the shaft end of one support roller, thus improving the cooling effect.

[0012] Preferably, an air pipe is provided on the upper longitudinal beam, and the air pipe is connected to the air hole. Since there is still a distance between the upper surface of the upper longitudinal beam and the support roller shaft head, an air pipe is provided on the upper longitudinal beam to extend the passage so that the outlet of the passage is close to the support roller shaft head.

[0013] Preferably, the upper end of the air pipe is connected to an arc-shaped nozzle. The arc-shaped nozzle has a hollow structure with a concave arc-shaped upper surface, on which several spray holes are provided. The lower surface is connected to the upper end of the air pipe. The shaft end of the support roller is cylindrical, and the upper end of the air pipe is connected to the arc-shaped nozzle. The wide spray holes on the upper surface of the arc-shaped nozzle are beneficial for cooling the shaft end of the support roller.

[0014] The beneficial effects of this utility model are: the fan, the passage and air holes in the frame form a cooling channel. The air generated by the fan rotation is ejected from the air holes through the passage in the frame. The position of the air holes corresponds to the position of the support roller shaft head. In this way, the airflow ejected from the air holes blows towards the shaft head, which can cool the shaft head and prevent the shaft head from deforming at high temperature. At the same time, the airflow can also disperse the heat flow emitted from the upper and lower parts of the furnace body, reducing the accumulation of heat at the support roller shaft head. Attached Figure Description

[0015] Figure 1 This is a side view of the present invention;

[0016] Figure 2 This is an end view of the present invention;

[0017] Figure 3 This is a top view of the lower furnace body of this utility model;

[0018] Figure 4 This is a top view of the present invention;

[0019] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the image;

[0020] Figure 6 This is a schematic diagram of the structure of a trachea according to the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of an arc-shaped nozzle according to this utility model;

[0022] In the diagram: 1. Lower furnace body, 2. Lower longitudinal beam, 3. Vertical beam, 4. Upper longitudinal beam, 5. Passageway, 6. Fan, 7. Support roller, 8. Shaft head, 9. Bracket, 10. Air hole, 11. Connecting block, 12. Side beam, 13. Bearing seat, 14. Air pipe, 15. Arc-shaped nozzle, 16. Spray hole. Detailed Implementation

[0023] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings. Example

[0024] like Figure 1 Figure 2 Figure 3 Figure 4 Figure 5As shown, a cooling mechanism for the drive roller shaft of a tempering furnace is provided. A bracket 9 is provided on the side of the frame of the lower furnace body 1. A support roller 7 is placed on the bracket. The bracket includes a connecting block 11, a side beam 12 fixed to the connecting block, and a bearing seat 13 fixed to the side beam. The two ends of the support roller are supported on the bearing seat by bearings.

[0025] The lower furnace body has two passageways 5 inside its frame, located on either side of the frame corresponding to the support roller heads. The lower furnace body frame includes two side frames, each comprising a lower longitudinal beam 2, a vertical beam 3 perpendicular to the lower longitudinal beam, and an upper longitudinal beam 4 perpendicular to the vertical beam and parallel to the lower longitudinal beam. The passageways are located inside the lower longitudinal beam, the vertical beam, and the upper longitudinal beam. The lower surface of the lower longitudinal beam has a passageway inlet, at which a fan 6 is installed. The fan outlet is opposite the inlet and enclosed around its perimeter. The lower longitudinal beam, vertical beam, and upper longitudinal beam are all square tube structures. The lower and upper longitudinal beams are closed at both ends. A circular through-hole is provided on the upper surface of the lower longitudinal beam corresponding to the position of the vertical beam. The lower end of the vertical beam is welded to the upper surface of the lower longitudinal beam, and the area around the through-hole is closed at the lower end of the vertical beam. A circular through-hole is provided on the lower surface of the upper longitudinal beam corresponding to the position of the vertical beam. The upper end of the vertical beam is welded to the lower surface of the upper longitudinal beam, and the area around the through-hole is closed at the upper end of the vertical beam. The interior of the upper longitudinal beam communicates with the interior of the vertical beam through the through-hole, and the interior of the lower longitudinal beam communicates with the interior of the vertical beam through the through-hole. An air hole 10 communicating with the passage is provided on the upper surface of the upper longitudinal beam. The position of the air hole corresponds to the position of the support roller shaft head and faces the support roller shaft head 8. Two air holes are arranged as a group, with two air holes at each end of the support roller shaft head. The air holes are located slightly outside the centerline of the upper longitudinal beam, and the air holes are circular. The two air holes in the same group are located on opposite sides of the corresponding support roller axis.

[0026] Under the action of the fan, cooling air is blown out from the fan through the passage and then through the air hole, thereby cooling the support roller head and dispersing the heat flow emitted from the furnace body. Example

[0027] A cooling mechanism for the drive roller head of a tempering furnace includes an air pipe 14 installed on the upper surface of an upper longitudinal beam. The air pipe communicates with air holes on the upper longitudinal beam. The lower end of the air pipe is circular, and the upper end is flat. Figure 6 As shown. The remaining structure is the same as in Example 1. Example

[0028] A cooling mechanism for the drive roller head of a tempering furnace includes an air pipe 14 mounted on the upper surface of an upper longitudinal beam. The air pipe is connected to air holes on the upper longitudinal beam. The air pipe is circular. Two air pipes in the same group are connected at their upper ends to arc-shaped nozzles 15. The arc-shaped nozzles have a hollow structure with a concave arc-shaped upper surface containing several spray holes 16. Their lower surfaces are connected to the upper ends of the air pipes. The air pipes communicate with the hollow interior of the arc-shaped nozzles. Figure 7As shown. The arc-shaped nozzle is located directly below the shaft head of the support roller, and the rest of the structure is the same as in Example 1.

[0029] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A cooling mechanism for the drive roller head of a tempering furnace, characterized in that, It includes a passage (5) set inside the frame of the lower furnace body (1), a blower (6) connected to the inlet of the passage, and an air hole (10) set on the upper part of the frame of the lower furnace body that communicates with the passage. The position of the air hole corresponds to the position of the shaft head (8) of the support roller (7) and faces the shaft head of the support roller. There are two passages, which are respectively set in the frame on both sides of the lower furnace body corresponding to the shaft head of the support roller. There are at least two blowers, and at least one blower is provided for each passage.

2. The cooling mechanism for the drive roller head of a tempering furnace according to claim 1, characterized in that, The frame of the lower furnace body includes two side frames. Each side frame includes a lower longitudinal beam (2), a vertical beam (3) perpendicular to the lower longitudinal beam, and an upper longitudinal beam (4) perpendicular to the vertical beam and parallel to the lower longitudinal beam. The passage is set inside the lower longitudinal beam, the vertical beam, and the upper longitudinal beam.

3. The cooling mechanism for the drive roller head of a tempering furnace according to claim 2, characterized in that, The lower longitudinal beam, vertical beam, and upper longitudinal beam are all square tube structures. The lower and upper longitudinal beams are closed at both ends. The upper surface of the lower longitudinal beam has a through hole corresponding to the position of the vertical beam. The lower end of the vertical beam is welded and fixed to the upper surface of the lower longitudinal beam. The lower surface of the upper longitudinal beam has a through hole corresponding to the position of the vertical beam. The upper end of the vertical beam is welded and fixed to the lower surface of the upper longitudinal beam. The vertical beam closes the through holes on the lower and upper longitudinal beams. The interior of the upper longitudinal beam is connected to the interior of the vertical beam through a through hole. The interior of the lower longitudinal beam is connected to the interior of the vertical beam through a through hole.

4. The cooling mechanism for the drive roller head of a tempering furnace according to claim 2, characterized in that, The lower surface of the lower longitudinal beam has an access inlet, and the fan is connected to the access inlet.

5. A cooling mechanism for the drive roller head of a tempering furnace according to claim 1, 2, 3, or 4, characterized in that, Two air holes form a group, and one group of air holes corresponds to the shaft head of a support roller.

6. A cooling mechanism for the drive roller head of a tempering furnace according to claim 1, 2, 3, or 4, characterized in that, An air pipe (14) is installed on the upper longitudinal beam, and the air pipe is connected to the air hole.

7. A cooling mechanism for the drive roller head of a tempering furnace according to claim 6, characterized in that, The upper end of the air pipe is connected to an arc-shaped nozzle (15). The arc-shaped nozzle has a hollow structure, with a concave arc shape on the upper surface. Several nozzle holes are provided on the concave arc upper surface, and the lower surface is connected to the upper end of the air pipe.

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