Large-specification glass forming bottom die

Abstract

The utility model provides a large-specification glass forming bottom die, and belongs to the field of glass forming. The mold comprises a mold bottom plate, fixing side plates and a heating module, the two fixing side plates are arranged on the two sides of the mold bottom plate in a protruding mode, the mold bottom plate and the fixing side plates form a groove-shaped structure, the heating module is arranged at the bottom of the mold bottom plate, temperature measuring holes in the length direction of the fixing side plates are formed in the ends of the two fixing side plates, and temperature measuring modules are arranged in the temperature measuring holes. By adopting the large-specification glass forming bottom die provided by the embodiment of the utility model, the problem of low glass forming yield in the prior art can be solved.

Description

Technical Field

[0001] The utility model relates to the field of glass molding, in particular to a large-size glass molding bottom mold. Background Art

[0002] The glass industry is developing faster and faster, and new optical glass products are emerging in an endless stream. At the same time, some markets also have diversified requirements for different optical glasses, especially large-sized optical glasses have newer molding requirements. In order to improve the utilization rate of products and ensure the inherent physical properties of products, such as the quality requirements of refractive index stripes, large-sized products are used in the aerospace and military fields in addition to the general market. At present, some optical glasses have a short material quality during the one-time molding process, and the glass solidifies quickly. The above glass characteristics make it difficult to mold the width and the product flatness is difficult to control. At the same time, inaccurate control of the temperature difference during the molding process can easily cause molding stripes on the glass surface, affecting the quality of the glass.

[0003] In the existing related technologies, the bottom mold for producing optical glass is obtained by measuring the ambient temperature of the mold to control the mold temperature. There is a certain deviation in controlling the mold temperature in this way, and it is easily affected by the environment. For temperature-sensitive glass, it is more likely to produce molding stripes on the glass surface due to inaccurate temperature control, resulting in a low glass molding yield. Utility Model Content

[0004] The embodiment of the utility model provides a large-sized glass molding bottom mold, which can solve the problem of low glass molding yield in the prior art. The technical solution is as follows:

[0005] A large-size glass forming bottom mold, comprising: a mold bottom plate, a fixed side plate and a heating module,

[0006] The two fixed side plates are protruding from both sides of the mold bottom plate, the mold bottom plate and the fixed side plates form a groove structure, the heating module is arranged at the bottom of the mold bottom plate, and the ends of the two fixed side plates are provided with temperature measuring holes extending along the length direction of the fixed side plates, and a temperature measuring module is arranged in the temperature measuring hole.

[0007] Optionally, the temperature measuring holes are provided in multiple groups, and the multiple groups of temperature measuring holes are symmetrically distributed on the two fixed side plates.

[0008] Optionally, the temperature measuring hole is a circular hole, the hole diameter of the temperature measuring hole is 8mm-25mm, and the hole depth is 50mm-200mm.

[0009] Optionally, a heating groove is provided at the bottom of one side of the mold bottom plate, and the heating module is arranged in the heating groove.

[0010] Optionally, two heating grooves are provided, and the two heating grooves are respectively arranged close to the fixed side plates on both sides.

[0011] Optionally, the heating groove is a rectangular groove with a groove depth of 20mm-50mm, a groove width of 80mm-240mm, and a groove length of 400mm-1000mm.

[0012] Optionally, a cooling hole is provided on a side of the mold bottom plate away from the heating groove, and an extending direction of the cooling hole is perpendicular to a length direction of the heating groove.

[0013] Optionally, the cooling hole is a through hole.

[0014] Optionally, a plurality of cooling holes are provided, and the plurality of cooling holes are arranged along the length direction of the mold bottom plate.

[0015] Optionally, the mold bottom plate and the fixed side plates are heat-resistant cast iron parts.

[0016] The beneficial effects brought by the technical solution provided by the embodiment of the utility model include at least:

[0017] The embodiment of the utility model provides a large-sized glass molding bottom mold. By opening a temperature measuring hole on the fixed side plate, a temperature measuring module can be inserted into the temperature measuring hole for temperature measurement, and the real-time temperature corresponding to the two sides of the mold bottom plate can be accurately measured, so that the temperature of the glass can be accurately grasped during the glass molding process, and the temperature of the glass heating can be adjusted, so that the glass can be smoothly molded, which can effectively solve the problem of difficult glass molding in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the overall structure provided by the embodiment of the utility model from an upper perspective;

[0020] Figure 2 This is a schematic diagram of the overall structure provided by the embodiment of the utility model from a bottom perspective;

[0021] Figure 3 It is a side structural schematic diagram provided by an embodiment of the utility model;

[0022] Figure 4 It is a schematic diagram of the assembly of the temperature measurement module provided by the embodiment of the utility model.

[0023] In the figure: 1- mold bottom plate; 2- fixed side plate; 3- heating module; 4- temperature measuring hole; 5- heating tank; 6- cooling hole; 7- temperature measuring module. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Figure 1 This is a schematic diagram of the overall structure provided by the embodiment of the utility model from an upper perspective; Figure 2 This is a schematic diagram of the overall structure provided by the embodiment of the utility model from a bottom perspective; Figure 3 It is a side structural schematic diagram provided by an embodiment of the utility model; Figure 4 Schematic diagram of the temperature measurement module assembly provided by the embodiment of the utility model. Figures 1 to 4 A large-sized glass forming bottom mold shown in the figure includes: a mold bottom plate 1, a fixed side plate 2 and a heating module 3. The two fixed side plates 2 are protruded on both sides of the mold bottom plate 1. The mold bottom plate 1 and the fixed side plates 2 form a groove structure. The heating module 3 is arranged at the bottom of the mold bottom plate 1. The ends of the two fixed side plates 2 are provided with temperature measuring holes 4 extending along the length direction of the fixed side plates 2, and a temperature measuring module 7 is arranged in the temperature measuring hole 4.

[0026] Exemplarily, in an embodiment of the utility model, the temperature measuring module 7 is a thermocouple, and the glass liquid is injected into the mold bottom plate 1 on the side of the mold close to the temperature measuring hole 4, and the glass liquid is spread out over a large area through the heating module 3 at the bottom of the mold bottom plate 1. The glass liquid forms a glass block after contacting the fixed side plate 2. The temperature measuring module 7 is inserted into the temperature measuring hole 4, and the temperature of the glass liquid on both sides is measured, so as to adjust the temperature of the heating module 3 so that the glass liquid can be evenly spread on the mold bottom plate 1, and the shape of the glass molding is controlled until the desired uniform glass shape is reached, and then the heating module 3 is stopped, and the glass is fixed after cooling. The glass obtained in this way can effectively reduce the generation of glass molding stripes.

[0027] The embodiment of the utility model provides a large-sized glass molding bottom mold. By opening a temperature measuring hole 4 on the fixed side plate 2, a temperature measuring module 7 can be inserted into the temperature measuring hole 4 for temperature measurement, and the real-time temperature corresponding to the two sides of the mold bottom plate 1 can be accurately measured, so that the temperature of the glass can be accurately grasped during the glass molding process, thereby adjusting the temperature of the glass heating, so that the glass can be smoothly molded, and the problem of low glass molding yield in the prior art can be effectively solved.

[0028] Optionally, multiple groups of temperature measuring holes 4 are provided, and the multiple groups of temperature measuring holes 4 are symmetrically distributed on the two fixed side plates 2 .

[0029] For example, in the embodiment of the present utility model, Figure 3 As shown, temperature measuring holes 4 are opened at the same height of the two fixed side plates 2, and every two temperature measuring holes 4 at the same height form a group. Multiple temperature measuring holes 4 are opened on each fixed side plate 2 to form multiple groups of temperature measuring holes 4. By opening multiple groups of temperature measuring holes 4, a temperature measuring module 7 can be inserted in each temperature measuring hole 4, so that the real-time temperature of the glass liquid close to the fixed side plate 2 can be tested more accurately. Even if a temperature measuring module 7 fails, it can be verified by the value measured by the temperature measuring module 7 in the temperature measuring holes 4 of other groups, so as to improve the accuracy of temperature detection, so that the operator can control the temperature of the glass liquid more accurately, reduce the difficulty of glass molding, and improve the practicability of the mold.

[0030] Optionally, the temperature measuring hole 4 is a round hole, the hole diameter of the temperature measuring hole 4 is 8mm-25mm, and the hole depth is 50mm-200mm.

[0031] Exemplarily, in the embodiment of the utility model, the temperature measuring module 7 is a thermocouple. Since a thermocouple needs to be inserted into the temperature measuring hole 4 to measure the temperature, the temperature measuring hole 4 is a round hole with a hole diameter of 8mm-25mm and a hole depth of 50mm-200mm. The temperature measuring hole 4 can be adapted to the shape of the measuring end of the thermocouple, so that the thermocouple can fit the temperature measuring hole 4 more closely, thereby reducing the error of the thermocouple measuring the temperature and further improving the practicality of the mold.

[0032] Optionally, a heating groove 5 is provided at the bottom of one side of the mold bottom plate 1 , and the heating module 3 is arranged in the heating groove 5 .

[0033] For example, in the embodiment of the present utility model, Figure 2 As shown, a heating module 3 is provided at the bottom of the mold base plate 1. When a heating groove 5 is opened at the bottom of one side of the mold base plate 1 and the heating module 3 is arranged in the heating groove 5, the heating module 3 can be placed more closely at the bottom of the mold base plate 1, so that the heating module 3 can heat the glass liquid on the mold base plate 1 more fully. At the same time, this structure makes the bottom of the entire mold a flat structure, so that the entire mold can be placed more stably at the work station, and the heating module 3 can be directly put in or taken out from one side of the mold base plate 1, so that the operation is more convenient, which further improves the practicability of the mold and the convenience of operation of the mold.

[0034] Optionally, two heating grooves 5 are provided, and the two heating grooves 5 are respectively provided close to the fixed side plates 2 on both sides.

[0035] For example, in the embodiment of the utility model, the glass liquid is usually injected into the middle part of the mold bottom plate 1 by a platinum material tube, so the temperature of the glass liquid on both sides of the mold bottom plate 1 close to the fixed side plate 2 is usually lower. Therefore, setting the heating groove 5 on the side close to the fixed side plate 2 can more fully heat the glass liquid on both sides, thereby reducing the repeated heating of the middle high-temperature glass liquid, thereby reducing unnecessary energy consumption and improving heating efficiency.

[0036] Optionally, the heating groove 5 is a rectangular groove with a groove depth of 20mm-50mm, a groove width of 80mm-240mm, and a groove length of 400mm-1000mm.

[0037] Exemplarily, in an embodiment of the utility model, the heating module 3 is configured as a resistance wire or a U-shaped silicon-molybdenum rod heating element, and the heating groove 5 is configured as a rectangular groove with a groove depth of 20mm-50mm, a groove width of 80mm-240mm, and a groove length of 400mm-1000mm, which can better adapt to the shape of the heating module 3, so that the heating module can fit more fully with the mold bottom plate 1, further improving the heating efficiency.

[0038] Optionally, a cooling hole 6 is opened on a side of the mold bottom plate 1 away from the heating groove 5 , and the extending direction of the cooling hole 6 is perpendicular to the length direction of the heating groove 5 .

[0039] Illustratively, in an embodiment of the utility model, after the glass liquid is added to the mold base plate 1 from the side close to the heating tank 5, the glass liquid will spread out on the side close to the cooling hole 6 on the mold base plate 1. After the coolant is input into the cooling hole 6, when the glass liquid contacts the side of the cooling hole 6 containing the coolant, it will solidify rapidly and stop flowing, thereby preventing the glass liquid from flowing out from the end of the mold base plate 1 and interfering with subsequent processes. By adding the cooling hole 6, the end of the glass can be quickly solidified, thereby improving the cooling efficiency of the mold.

[0040] Optionally, the cooling hole 6 is a through hole.

[0041] Illustratively, in an embodiment of the utility model, a cooling hole 6 with two ends communicating with each other is opened on the mold bottom plate 1, and the two ends of the cooling hole 6 can be externally connected to a flowing coolant, so that the coolant is no longer a liquid fixedly input into a closed space, but a fluid coolant that can circulate with the outside world, thereby improving the cooling effect and further improving the cooling efficiency of the mold.

[0042] Optionally, a plurality of cooling holes 6 are provided, and the plurality of cooling holes 6 are arranged along the length direction of the mold bottom plate 1 .

[0043] For example, in the embodiment of the utility model, by providing a plurality of cooling holes 6, the contact area between the coolant and the mold bottom plate 1 can be further increased, thereby further improving the cooling efficiency of the mold.

[0044] Optionally, the mold bottom plate 1 and the fixed side plate 2 are heat-resistant cast iron parts.

[0045] For example, in the embodiment of the utility model, the heat-resistant cast iron is a cast iron used at high temperatures, and the use temperature can be around 1200K. While meeting the forging temperature of the glass liquid, it has good anti-oxidation, anti-growth, and anti-thermal fatigue properties, and also has good thermal conductivity. With the heating module 3 and the coolant, it can facilitate the molding of the glass liquid. By setting the mold bottom plate 1 and the fixed side plate 2 as heat-resistant cast iron parts, the service life of the mold is increased.

[0046] Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate a quantity limitation, but indicate the existence of at least one. Words such as "include" or "comprise" mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The above description is only an optional embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A large-size glass forming bottom mold, characterized in that: include: The mold base plate (1), the fixed side plate (2) and the heating module (3), The two fixed side plates (2) are protrudingly arranged on both sides of the mold bottom plate (1), the mold bottom plate (1) and the fixed side plates (2) form a groove structure, the heating module (3) is arranged at the bottom of the mold bottom plate (1), and the ends of the two fixed side plates (2) are provided with temperature measuring holes (4) extending along the length direction of the fixed side plates (2), and the temperature measuring holes are provided with temperature measuring modules (7).

2. A large-size glass forming bottom mold according to claim 1, characterized in that: The temperature measuring holes (4) are provided in multiple groups, and the multiple groups of temperature measuring holes (4) are symmetrically distributed on the two fixed side plates (2).

3. A large-size glass forming bottom mold according to claim 1, characterized in that: The temperature measuring hole (4) is a circular hole, the hole diameter of the temperature measuring hole (4) is 8 mm-25 mm, and the hole depth is 50 mm-200 mm.

4. The large-size glass forming bottom mold according to claim 1, characterized in that: A heating groove (5) is provided at the bottom of one side of the mold bottom plate (1), and the heating module (3) is arranged in the heating groove (5).

5. A large-size glass forming bottom mold according to claim 4, characterized in that: Two heating grooves (5) are provided, and the two heating grooves (5) are respectively provided close to the fixed side plates (2) on both sides.

6. A large-size glass forming bottom mold according to claim 5, characterized in that: The heating groove (5) is a rectangular groove with a groove depth of 20 mm to 50 mm, a groove width of 80 mm to 240 mm, and a groove length of 400 mm to 1000 mm.

7. The large-size glass forming bottom mold according to claim 4, characterized in that: A cooling hole (6) is provided on a side of the mold bottom plate (1) away from the heating groove (5), and the extending direction of the cooling hole (6) is perpendicular to the length direction of the heating groove (5).

8. The large-size glass forming bottom mold according to claim 7, characterized in that: The cooling hole (6) is a through hole.

9. A large-size glass forming bottom mold according to claim 8, characterized in that: A plurality of cooling holes (6) are provided, and the plurality of cooling holes (6) are arranged along the length direction of the mold bottom plate (1).

10. The large-size glass forming bottom mold according to claim 1, characterized in that: The mold bottom plate (1) and the fixed side plate (2) are heat-resistant cast iron parts.

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