Constant temperature device for glass blank forging and pressing die
By installing constant temperature components and temperature insulation cloth in the glass blank forging device, the deformation and cracking of the glass blank caused by the temperature difference between the mold and the forging components is solved, the temperature control and buffering effect is achieved, and the molding quality of the glass blank is improved.
Patent Information
- Application Number
- CN202421833114.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-07-31
AI Technical Summary
During the forging and forming process of glass blanks, due to the large temperature difference between the mold and the forging components, the glass blanks have problems such as deformation and cracks.
The constant temperature components are installed next to the forging device and the mold, and the temperatures of the mold and forging assembly are kept between 850°C and 900°C by electric heating, and a temperature insulation cloth is provided between the mold and the support table to buffer the pressure and isolate the temperature difference.
It effectively reduces cracks and fracture problems in the forging process of glass blanks, improves yield, and prevents the mold from cooling due to contact.
Smart Images
Figure CN223118311U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of glass processing, and particularly relates to a constant temperature device for a glass blank forging die. Background Art
[0002] In the process of forging and forming a glass blank, the die and the forging assembly are usually at room temperature, and after the glass blank comes out of the heating furnace, it will come into direct contact with the die and the forging assembly.
[0003] However, when the glass blank comes out of the heating furnace, its own temperature reaches as high as 850 - 900 °C, while the die and the forging assembly are not heated and are at room temperature. During the forging process, after the outer surface of the glass blank comes into contact with the die and the forging assembly, it often causes too large a temperature difference between the inside and outside of the glass blank, resulting in problems such as deformation and cracks during the forging process. Content of the Utility Model
[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a constant temperature device for a glass blank forging die.
[0005] To solve the above technical problems, the utility model provides the following technical solutions:
[0006] A constant temperature device for a glass blank forging die of the utility model includes a supporting table, a forging assembly and a die. A convex forging head symmetrical to the die is installed at the bottom of the forging assembly. It is characterized in that a first constant temperature assembly is arranged at the lower end of the forging assembly, a second constant temperature assembly is arranged at the bottom of the die, and a heat insulation cloth is arranged between the die and the supporting table.
[0007] As a preferred technical solution of the utility model, the first constant temperature assembly is arranged in a ring shape around the side of the convex forging head, and a power supply wire is connected to the right side.
[0008] As a preferred technical solution of the utility model, the second constant temperature assembly includes a first constant temperature ring and a second constant temperature ring. The first constant temperature ring is arranged around the side wall of the die, the second constant temperature ring is arranged at the bottom of the die, and a power supply wire is connected to the right side of the second constant temperature assembly.
[0009] As a preferred technical solution of the utility model, support columns are arranged at the bottom of the die, and the support columns are arranged at the bottom of the middle position between the first constant temperature ring and the second constant temperature ring, and the number of them is at least three.
[0010] As a preferred technical solution of the present utility model, a guide plate is provided above the supporting table. The guide plate is provided with a first guide hole, a second guide hole and a third guide hole. The first guide hole allows the forging component to move up and down and fixes its displacement in the plane direction. The second guide hole allows the power supply wire of the first constant temperature component to pass through, and the third guide hole allows the power supply wire of the second constant temperature component to pass through.
[0011] As a preferred technical solution of the present utility model, the heating temperatures of the first constant temperature component and the second constant temperature component are both maintained between 850 °C and 900 °C.
[0012] As a preferred technical solution of the present utility model, the heat insulation cloth has at least three layers, and the standard of the heat insulation cloth is 3 mm level.
[0013] As a preferred technical solution of the present utility model, both the first constant temperature component and the second constant temperature component adopt the electric heating method
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0015] 1. By installing a constant temperature component beside the forging device and the mold, it ensures that the temperature difference contacted by the glass blank during forging is adjusted to an appropriate temperature, effectively reducing problems such as cracks.
[0016] 2. A heat insulation cloth is provided at the bottom of the mold. Utilizing its deformable performance, the glass blank is buffered during forging, the pressure-receiving process is extended, the defective rate of cracking and breaking is reduced, and at the same time, it also isolates between the mold and the supporting table, preventing the mold from cooling due to contact. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0018] Figure 1 is the overall structural schematic diagram of the present utility model;
[0019] Figure 2 is the first partial schematic diagram of the present utility model;
[0020] Figure 3 is the second partial schematic diagram of the present utility model;
[0021] In the figure: 1. Supporting table; 2. Forging component; 3. Guide plate; 4. Mold; 5. Convex forging head; 6. First constant temperature component; 7. Second constant temperature component; 71. First constant temperature ring; 72. Second constant temperature ring; 8. Heat insulation cloth; 9. Support column; 10. First guide hole; 11. Second guide hole; 12. Third guide hole. Detailed implementation manners
[0022] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, and are not used to limit the present utility model.
[0023] All identical reference numerals in the accompanying drawings refer to the same components.
[0024] As Figures 1-3 shown, a constant temperature device for a glass blank forging die includes a supporting table 1, a forging component 2 and a die 4. A convex forging head 5 symmetrical to the shape of the die 4 is installed at the bottom of the forging component 2. It is characterized in that a first constant temperature component 6 is arranged at the lower end of the forging component 2, a second constant temperature component 7 is arranged at the bottom of the die 4, and a heat insulation cloth 8 is arranged between the die 4 and the supporting table 1.
[0025] It should be noted that the top of the forging component 2 is connected to a power device to control its up and down movement.
[0026] In an optional embodiment, the first constant temperature component 6 is arranged in a ring shape around the side of the convex forging head 5, and a power supply wire is connected to the right side.
[0027] It should be noted that the inner diameter of the first constant temperature component 6 is equivalent to the outer diameter of the upper section of the convex forging head 5, and it should be ensured that the two are in close contact to avoid reducing the heat transfer efficiency and wasting redundant power.
[0028] In an optional embodiment, the second constant temperature component 7 includes a first constant temperature ring 71 and a second constant temperature ring 72. The first constant temperature ring 71 is arranged around the side wall of the die 4, and the second constant temperature ring 72 is arranged on the bottom of the die 4. A power supply wire is connected to the right side of the second constant temperature component 7.
[0029] In an optional embodiment, support columns 9 are arranged at the bottom of the die 4, and the support columns 9 are arranged at the bottom of the middle position between the first constant temperature ring 71 and the second constant temperature ring 72, and the number of them is at least three.
[0030] It should be noted that if only the outer periphery of the die 4 is heated, there will be a temperature difference between the center position and the outer periphery, which will affect the yield rate of the glass blank. Therefore, support columns 9 are arranged at the bottom of the die 4 to leave a position for installing the second constant temperature ring 72 at the bottom, so as to ensure uniform heating of the whole die 4.
[0031] In an alternative embodiment, a guide plate 3 is provided above the supporting table 1. The guide plate 3 is provided with a first guide hole 10, a second guide hole 11 and a third guide hole 12. The first guide hole 10 allows the forging assembly 2 to move up and down, and fixes its displacement in the plane direction. The second guide hole 11 allows the power supply wire of the first constant temperature assembly 6 to pass through, and the third guide hole 12 allows the power supply wire of the second constant temperature assembly 7 to pass through.
[0032] It should be noted that the diameter of the first guide hole 10 should be equivalent to the outer diameter of the forging assembly 2, so that it cannot have displacement in the horizontal position, while the diameters of the second guide hole 11 and the third guide hole 12 only need to be larger than the diameters of the power supply wires of the first constant temperature assembly 6 and the second constant temperature assembly.
[0033] In an alternative embodiment, the heating temperatures of the first constant temperature assembly 6 and the second constant temperature assembly 7 are both maintained between 850°C and 900°C.
[0034] It should be noted that the temperature of the glass blank coming out of the pre-heating process reaches 850°C to 900°C, so the mold 4 should also be maintained between 850°C and 900°C to prevent waste products from being produced due to excessive temperature difference inside and outside the glass blank.
[0035] In an alternative embodiment, the heat insulation cloth 8 has at least three layers, and the standard of the heat insulation cloth 8 is at the 3mm level.
[0036] It should be noted that due to the need for buffering of the mold 4, the heat insulation cloth 8 is preferably stacked in three layers, and the thickness of each layer is 3mm, with a total of 9mm, in order to meet the buffering requirements. And after the mold 4 is heated, it is nearly 900°C, and the heat insulation standard of the heat insulation cloth 8 should also be above 900°C.
[0037] In an alternative embodiment, both the first constant temperature assembly 6 and the second constant temperature assembly 7 adopt the electric heating method.
[0038] It should be noted that the above components can also adopt the natural gas heating method, but the approval is difficult and the cost is expensive, so the electric heating method is preferably used in the embodiment.
[0039] Working principle: Before the forging process, the first constant temperature assembly 6 and the second constant temperature assembly 7 are turned on to heat the temperature of the mold 4 and the convex forging head 5 to about 900°C. Subsequently, the glass blank comes out of the heating furnace, is clamped to the center position of the mold 4, the power device operates, and the convex forging head 5 presses down on the mold 4 with the assistance of the guide plate 3. The heat insulation cloth 8 provides buffering after the convex forging head 5 contacts the glass blank. After the forging is completed, the convex forging head 5 is lifted, and the shaped glass blank is taken out. During the entire forging process, the first constant temperature assembly 6 and the second constant temperature assembly 7 continue to work.
[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A constant temperature device for a glass blank forging die, comprising a supporting table (1), a forging component (2) and a die (4). A convex forging head (5) symmetrical to the shape of the die (4) is installed at the bottom of the forging component (2). It is characterized in that, A first constant temperature component (6) is provided at the lower end of the forging component (2), a second constant temperature component (7) is provided at the bottom of the mold (4), and a heat insulation cloth (8) is provided between the mold (4) and the supporting table (1).
2. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, The first constant temperature component (6) is arranged in a circular shape around the side of the convex forging head (5), and a power supply wire is connected to the right side.
3. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, The second constant temperature component (7) includes a first constant temperature ring (71) and a second constant temperature ring (72). The first constant temperature ring (71) is arranged around the side wall of the mold (4), and the second constant temperature ring (72) is arranged on the bottom of the mold (4). A power supply wire is connected to the right side of the second constant temperature component (7).
4. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, Support columns (9) are provided at the bottom of the mold (4), and the support columns (9) are arranged at the bottom of the middle position between the first constant temperature ring (71) and the second constant temperature ring (72), and the number thereof is at least three.
5. The constant temperature device for a glass blank forging die according to claim 1 or 3, characterized in that, A guide plate (3) is provided above the supporting table (1). The guide plate (3) is provided with a first guide hole (10), a second guide hole (11) and a third guide hole (12). The first guide hole (10) allows the forging component (2) to move up and down and fixes its displacement in the plane direction. The second guide hole (11) allows the power supply wire of the first constant temperature component (6) to pass through, and the third guide hole (12) allows the power supply wire of the second constant temperature component (7) to pass through.
6. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, The heating temperatures of the first constant temperature component (6) and the second constant temperature component (7) are both maintained between 850 °C and 900 °C.
7. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, The heat insulation cloth (8) has at least three layers, and the standard of the heat insulation cloth (8) is at the 3 mm level.
8. The constant temperature device for a glass blank forging die according to claim 1, characterized in that, Both the first constant temperature component (6) and the second constant temperature component (7) adopt an electric heating method.