Heating device for relieving stress of high borosilicate glass product
By setting up heat insulation doors and traction columns in the stress elimination equipment of high borosilicate glass products, temperature stability is ensured, the problem of temperature instability of existing equipment is solved, and efficient stress elimination effect is achieved.
Patent Information
- Application Number
- CN202422593512.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-27
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-27
AI Technical Summary
The existing stress relief equipment for high borosilicate glass products is difficult to ensure the temperature stability of the heating section, insulation section and slow cooling section, affecting the stress relief effect.
A heating device is designed to reduce temperature exchange by setting insulating doors and traction columns in the heating furnace, using the closing of the insulating doors to reduce temperature changes, ensuring the temperature stability in each cabin, and using electric heating tubes to adjust the power according to the needs of different sections to achieve accurate temperature control.
The annealing of glass products under the optimal temperature environment is achieved, the stress relief effect is improved, and deformation and cracks of glass products are avoided.
Smart Images
Figure CN223268541U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of glass product production equipment, in particular to a heating device for eliminating stress of high borosilicate glass products. Background Art
[0002] Glass products will have internal stress after firing. Borosilicate glass, as a type of glass, has the same problem. Excessive stress inside the glass will cause the glass to burst, fine cracks will appear, affecting the optical properties, causing glass deformation, etc. Therefore, after the glass is fired, eliminating the internal stress of the glass product is an important process that determines the quality of the glass product.
[0003] Glass stress is mainly eliminated by heating, and the stress inside the glass product is eliminated by heating, insulation and slow cooling. The existing stress elimination equipment is difficult to ensure the temperature stability of the heating section, insulation section and slow cooling section, resulting in the glass product being unable to eliminate stress in an ideal temperature environment, affecting the stress elimination effect. Therefore, it is particularly necessary to develop a heating device for stress elimination of high borosilicate glass products with stable temperature in the heating section, insulation section and slow cooling section and good stress elimination effect. Summary of the Invention
[0004] The utility model aims to provide a heating device for relieving stress of high borosilicate glass products, which has the advantages of stable temperature in the heating section, the heat preservation section and the slow cooling section and good stress relieving effect.
[0005] The technical solutions adopted are as follows:
[0006] A heating device for stress relief of high borosilicate glass products includes a heating furnace, an outlet and an inlet are respectively provided at both ends of the heating furnace, both the outlet and the inlet are provided with insulation door covers, two insulation doors are provided in the heating furnace, the two insulation doors divide the heating furnace into a heating section, an insulation section and a slow cooling section, an electric heating pipe is installed on the inner wall of the heating furnace, a bottom plate is provided at the bottom end of the heating furnace, a long groove is opened on the bottom plate, a plurality of traction columns are slidably provided in the long groove, a plurality of conveyor carts are slidably provided on the bottom plate, and the conveyor carts are detachably connected to the corresponding traction columns.
[0007] Preferably, the heat-insulating door includes two single doors, each of which is vertically provided with a connecting shaft that is rotatably connected to the heating furnace. The single doors are adapted to the shape and size of the interior of the heating furnace, and the connecting shaft at the upper end of the single door extends above the heating furnace. A rotating mechanism connected to the connecting shaft is provided above the heating furnace.
[0008] Preferably, the rotating mechanism includes a driven bevel gear, which is installed at the upper end of the connecting shaft. A transmission shaft is horizontally arranged between the two connecting shafts. Active bevel gears meshing with the driven bevel gear are arranged at both ends of the transmission shaft, and the end of the transmission shaft is connected to a drive motor.
[0009] Preferably, a mesh chain conveyor belt is provided below the bottom plate, and a plurality of traction columns are evenly distributed on the mesh chain conveyor belt.
[0010] Preferably, the thermal insulation door cover includes a slideway, and two sliding doors are slidably arranged in the slideway.
[0011] Preferably, the interior of the heating furnace is a regular hexagon.
[0012] Preferably, the transport vehicle includes a chassis, the chassis is provided with two sets of wheel axles, both ends of the wheel axles are provided with rollers, the front end of the chassis is provided with a slot corresponding to the traction column, and a limit pin is slidably provided in the slot.
[0013] Preferably, a maintenance ladder is provided on the side of the heating furnace.
[0014] Compared with the existing technology, the beneficial effects are:
[0015] The utility model utilizes a traction column sliding in a long groove to drive the conveyor vehicle to move between the heating section, the heat preservation section and the slow cooling section. After passing through the insulation door, the insulation door is closed. After the insulation door is closed, the temperature exchange between the two adjacent compartments of the heating furnace is reduced, so that the stability in each compartment is maintained stable, so that the glass products can be annealed in an optimal temperature environment, and the annealing effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a three-dimensional structural diagram of a heating device for relieving stress of high borosilicate glass products in the utility model.
[0017] Figure 2 This is a schematic diagram of the internal structure of a heating device for relieving stress of high borosilicate glass products in the utility model.
[0018] Figure 3 This is a schematic diagram of the internal structure of a heating device for relieving stress of high borosilicate glass products from a side view.
[0019] Figure 4 This is a three-dimensional structural diagram of a conveyor vehicle for a heating device for relieving stress of high borosilicate glass products according to the utility model.
[0020] In the figure: 1. Heating furnace; 2. Exit; 3. Entrance; 4. Slide; 5. Sliding door; 6. Heating section; 7. Insulation section; 8. Slow cooling section; 9. Single-leaf door; 10. Connecting shaft; 11. Driven bevel gear; 12. Transmission shaft; 13. Driving bevel gear; 14. Driving motor; 15. Maintenance ladder; 16. Electric heating pipe; 17. Bottom plate; 18. Long groove; 19. Pulling column; 20. Chassis; 21. Roller; 22. Slot; 23. Mesh chain conveyor belt. DETAILED DESCRIPTION
[0021] The present invention will be further described below with reference to specific embodiments. Figures 1 to 4 As shown:
[0022] Example 1: A heating device for stress relief of high borosilicate glass products, comprising a heating furnace 1, with an outlet 2 and an inlet 3 respectively provided at both ends of the heating furnace 1, both the outlet 2 and the inlet 3 being provided with insulation door covers, two insulation doors being provided in the heating furnace 1, the two insulation doors dividing the heating furnace 1 into a heating section 6, an insulation section 7 and a slow cooling section 8, an electric heating tube 16 being installed on the inner wall of the heating furnace 1, the electric heating tube 16 adjusting the power according to the required temperature of the heating section 6, the insulation section 7 and the slow cooling section 8, maintaining the heating section 6, the insulation section 7 and the slow cooling section 8 at a stable temperature, the glass products entering from the inlet 3 are heated in the heating section 6 in turn, then enter the insulation section 7, and then enter the slow cooling section 8 for slow cooling.
[0023] The bottom end of the heating furnace 1 is provided with a base plate 17, which is provided with a thermal insulation layer. The base plate 17 is provided with a long slot 18, which extends along the length of the heating furnace 1. A plurality of traction posts 19 are slidably mounted in the slot 18. A plurality of transport vehicles are slidably mounted on the base plate 17, and the transport vehicles are detachably connected to corresponding traction posts 19. The movement of the traction posts 19 drives the corresponding transport vehicles to move within the heating furnace 1.
[0024] The conveyor vehicle loaded with glass products is pulled by the traction column 19 and moves in the heating furnace 1, passing through the heating section 6, the insulation section 7 and the slow cooling section 8 in sequence. After passing through the insulation door, the insulation door is closed. After the insulation door is closed, the temperature exchange between the two adjacent compartments of the heating furnace 1 is reduced, so that the stability in each compartment is maintained, so that the glass products can be annealed in the optimal temperature environment.
[0025] Example 2: A heating device for stress relief of high borosilicate glass products, comprising a heating furnace 1, with an outlet 2 and an inlet 3 respectively provided at both ends of the heating furnace 1, both the outlet 2 and the inlet 3 being provided with an insulation door cover, the insulation door cover comprising a slide 4, with two sliding doors 5 slidingly provided in the slide 4, two insulation doors being provided in the heating furnace 1, the two insulation doors dividing the heating furnace 1 into a heating section 6, an insulation section 7 and a slow cooling section 8, the insulation door comprising two single-leaf doors 9, the single-leaf door 9 being vertically provided with a connecting shaft 10 rotatably connected to the heating furnace 1, the single-leaf door 9 being adapted to the shape and size of the interior of the heating furnace 1, the connecting shaft 10 at the upper end of the single-leaf door 9 extending to above the heating furnace 1, and a rotating mechanism connected to the connecting shaft 10 being provided above the heating furnace 1.
[0026] The rotating mechanism includes a driven bevel gear 11, which is installed at the upper end of the connecting shaft 10. A transmission shaft 12 is horizontally arranged between the two connecting shafts 10. Active bevel gears 13 meshing with the driven bevel gear 11 are arranged at both ends of the transmission shaft 12. A drive motor 14 is connected to the end of the transmission shaft 12. A maintenance ladder 15 is provided on the side of the heating furnace 1.
[0027] An electric heating tube 16 is installed on the inner wall of the heating furnace 1. The electric heating tube 16 adjusts the power according to the required temperature of the heating section 6, the insulation section 7 and the slow cooling section 8 to maintain a stable temperature of the heating section 6, the insulation section 7 and the slow cooling section 8. The interior of the heating furnace 1 is a regular hexagon, which facilitates the uniform distribution of the electric heating tube 16. The glass products enter from the entrance 3, pass through the heating section 6 for heating, enter the insulation section 7, and then enter the slow cooling section 8 for slow cooling.
[0028] A bottom plate 17 is provided at the bottom end of the heating furnace 1, and the bottom plate 17 is provided with a thermal insulation layer. The bottom plate 17 is provided with a long groove 18, which extends along the length direction of the heating furnace 1. A plurality of traction columns 19 are slidably provided in the long groove 18, and a plurality of conveying vehicles are slidably provided on the bottom plate 17. The conveying vehicle includes a chassis 20, and the chassis 20 is provided with two sets of wheel axles. Both ends of the wheel axles are provided with rollers 21. The front end of the chassis 20 is provided with a slot 22 corresponding to the traction column 19, and a limit pin is slidably provided in the slot 22. The traction column 19 is inserted into the slot 22, and the limit pin is slid to clamp the traction column 19. The traction column 19 moves, thereby driving the corresponding conveying vehicle to move in the heating furnace 1. A mesh chain conveyor belt 23 is provided below the bottom plate 17, and a plurality of traction columns 19 are evenly distributed on the mesh chain conveyor belt 23, and the mesh chain conveyor belt drives the traction column 19 to move.
[0029] The specific working process is as follows: place the glass products on the conveyor vehicle, connect the traction column 19 to the conveyor vehicle, open the insulation door cover at the entrance 3, start the mesh chain conveyor belt 23, and move the conveyor vehicle loaded with glass products in the heating furnace 1, passing through the heating section 6, the insulation section 7 and the slow cooling section 8 in sequence. When passing through the insulation door, the connecting shaft 10 is rotated by the rotating mechanism to rotate the two single doors 9 for the conveyor vehicle to pass through. After passing through the insulation door, the insulation door is closed. After the insulation door is closed, the temperature exchange between the two adjacent compartments of the heating furnace 1 is reduced, so that the stability in each compartment is maintained stable, so that the glass products can be annealed in the optimal temperature environment.
[0030] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and replacements made by technicians in this field on the basis of the present invention fall within the scope of protection required by the present invention.
Claims
1. A heating device for relieving stress of high borosilicate glass products, characterized by: The invention comprises a heating furnace (1), wherein both ends of the heating furnace (1) are respectively provided with an outlet (2) and an inlet (3), and both the outlet (2) and the inlet (3) are provided with heat-insulating door covers. Two heat-insulating doors are provided in the heating furnace (1), and the two heat-insulating doors divide the heating furnace (1) into a heating section (6), a heat-insulating section (7) and a slow cooling section (8). An electric heating pipe (16) is installed on the inner wall of the heating furnace (1), and a bottom plate (17) is provided at the bottom end of the heating furnace (1), and a long groove (18) is opened on the bottom plate (17). A plurality of traction columns (19) are slidably provided in the long groove (18), and a plurality of conveying vehicles are slidably provided on the bottom plate (17), and the conveying vehicles are detachably connected to the corresponding traction columns (19).
2. A heating device for relieving stress of a borosilicate glass product according to claim 1, characterized in that: The heat-insulating door comprises two single-leaf doors (9), each of which is vertically provided with a connecting shaft (10) rotatably connected to the heating furnace (1), the single-leaf door (9) being adapted to the shape and size of the interior of the heating furnace (1), the connecting shaft (10) at the upper end of the single-leaf door (9) extending above the heating furnace (1), and a rotating mechanism connected to the connecting shaft (10) being provided above the heating furnace (1).
3. A heating device for relieving stress of a borosilicate glass product according to claim 2, characterized in that: The rotating mechanism comprises a driven bevel gear (11), which is mounted on the upper end of a connecting shaft (10). A transmission shaft (12) is horizontally arranged between the two connecting shafts (10). Active bevel gears (13) meshing with the driven bevel gear (11) are arranged at both ends of the transmission shaft (12). The end of the transmission shaft (12) is connected to a drive motor (14).
4. The heating device for relieving stress of a borosilicate glass product according to claim 1, wherein: A mesh chain conveyor belt (23) is provided below the bottom plate (17), and a plurality of traction columns (19) are evenly distributed on the mesh chain conveyor belt (23).
5. The heating device for relieving stress of a borosilicate glass product according to claim 1, characterized in that: The heat-insulating door cover comprises a slideway (4), and two sliding doors (5) are slidably arranged in the slideway (4).
6. The heating device for relieving stress of a borosilicate glass product according to claim 1, characterized in that: The interior of the heating furnace (1) is in a regular hexagonal shape.
7. The heating device for relieving stress of a borosilicate glass product according to claim 1, characterized in that: The transport vehicle comprises a chassis (20), the chassis (20) is provided with two sets of wheel axles, both ends of the wheel axles are provided with rollers (21), the front end of the chassis (20) is provided with a slot (22) corresponding to the traction column (19), and a limit pin is slidably provided in the slot (22).
8. The heating device for relieving stress of a borosilicate glass product according to claim 1, characterized in that: A maintenance ladder (15) is provided on the side of the heating furnace (1).