A heating and holding device for casting bulk optical glass

Abstract

The utility model discloses a kind of heating heat preservation devices for bulk optical glass casting forming, it is related to heat preservation device technical field, including heat preservation cover, heating transfer platform, the top of heating transfer platform is fixed with heat preservation cover.The utility model is provided with heat preservation cover, preheating mould is placed into heat preservation cover by clamping mechanism in use process, motor starts and drives top cap rotation, top cap is closed with the top of heat preservation cover, while pulling up upper connecting plate to drive folding closed cover to unfold, and make the top of multiple groups of connecting blocks extend to the top of top cap, at this time, it can be connected by driving locking block and locking hole with installing block, simple operation is used conveniently, to be filled with inert gas via trachea, i.

Description

Technical Field

[0001] This utility model relates to the field of heat preservation device technology, and in particular to a heating and heat preservation device for casting large pieces of optical glass. Background Technology

[0002] Large-scale production or trial production of optical glass usually adopts the casting method, which requires casting equipment and supporting equipment. Before casting, the crucible containing the glass raw materials and the mold for casting are placed in the kiln and oven respectively for melting and preheating.

[0003] Chinese Patent Publication No. CN 217535811 U discloses a large-scale optical glass casting device, belonging to the field of mechanical technology. It primarily addresses the problems of poor continuity and product consistency in existing casting processes, localized optical instability in cast products, and the tendency to generate cold lines. Its main features include: a frame and a casting carriage, mold, and control unit mounted on the frame; the casting carriage includes a crucible, a platinum inner sleeve, a crucible tilting mechanism, and a tilting drive mechanism; the mold is placed on the mold casting position on the frame via a positioning mechanism; it can precisely control the amount of molten glass cast per unit time, with no significant drop between the crucible outlet and the mold injection point, and their horizontal positions are relatively fixed. This invention ensures the continuity of the casting process and product consistency, avoids localized optical instability and cold lines in cast products, and is mainly used for casting large-scale optical glass in small-batch production or trial production.

[0004] The existing technical solutions have the following shortcomings: they are inadequate in terms of heat preservation during mold transfer. If the mold experiences a sudden drop in local temperature due to heat dissipation during transfer or fixing, internal stress will be generated due to the difference in thermal expansion coefficients, which may lead to mold cracking or shortened lifespan. It will also affect the viscosity and fluidity of the glass melt during subsequent casting, leaving room for optimization. Therefore, it is necessary to design a heating and heat preservation device for casting large pieces of optical glass to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a heating and heat preservation device for casting large pieces of optical glass, so as to solve the problem of poor heat preservation mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heating and heat preservation device for casting large pieces of optical glass, comprising a heat preservation sleeve and a heating transfer table, wherein the top of the heating transfer table is fixed with a heat preservation sleeve;

[0007] A motor is fixed to one side of the insulation sleeve via a bracket, and a top cover is connected to the top of the motor output shaft. An air pipe is fixed inside the top cover, and a connecting pipe is connected to one side of the air pipe. A lower connecting plate is fixed to the outside of the insulation sleeve, and a folding closure is connected to the top of the lower connecting plate. An upper connecting plate is fixed to the top of the folding closure, and connecting blocks are evenly fixed to the top of the upper connecting plate. Each connecting block has a locking hole inside. An installation block is movably connected to the top of the top cover, and a locking block is fixed to one side of each installation block. Each locking block is connected to a locking hole.

[0008] Furthermore, jet nozzles are uniformly fixed on the inner side of the trachea, and the jet nozzles are arranged in a ring on the inner side of the trachea.

[0009] Furthermore, the cross-section of the jet head is configured as a trumpet shape, and the cross-section of the air pipe is configured as an annular shape.

[0010] Furthermore, a movable block is fixed to the bottom end of the mounting block, and movable grooves are evenly provided on the top end of the top cover, and all movable grooves are connected to the movable block.

[0011] Furthermore, the width of each movable block is matched with the width of the movable groove, and the cross-sections of both the movable block and the movable groove are convex.

[0012] Furthermore, a sealing gasket is fixed to the top of the upper connecting plate, and the top of the sealing gasket is in contact with the bottom of the top cover.

[0013] Furthermore, the connecting blocks are provided in four groups, and the connecting blocks are arranged in a cross shape inside the top cover.

[0014] Compared with the prior art, the beneficial effects of this utility model are: the heating and heat preservation device for casting large optical glass achieves the function of easy heat preservation;

[0015] With an insulating sleeve, the preheated mold is placed inside the sleeve via a clamping mechanism during use. The motor starts and rotates the top cover, closing the top cover and the top of the insulating sleeve. At the same time, the connecting plate is pulled up to unfold the folding cover, extending the tops of multiple connecting blocks above the top cover. Then, the mounting block is moved to connect the locking block with the locking hole. The operation is simple and convenient. Inert gas can be injected through the air pipe to form an insulating space, which can prevent oxidation of the mold surface, thus reducing the mold life and contaminating the glass. The insulating structure can maintain the uniformity of the mold temperature, prevent thermal stress cracking during transportation, and slow down heat loss, thus avoiding affecting the viscosity and fluidity of the glass melt. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is a front view structural diagram of the present utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the connecting block of this utility model;

[0020] Figure 4 This is a top view cross-sectional structural diagram of the insulation sleeve of this utility model;

[0021] Figure 5 For the present utility model Figure 1 Schematic diagram of the structure at point A in the middle.

[0022] The following are the labels in the attached diagram: 1. Top cover; 2. Motor; 3. Insulation sleeve; 4. Heating transfer platform; 5. Connecting pipe; 6. Lower connecting plate; 7. Air pipe; 8. Folding enclosure; 9. Connecting block; 10. Locking hole; 11. Sealing gasket; 12. Upper connecting plate; 13. Movable block; 14. Mounting block; 15. Locking block; 16. Jet nozzle; 17. Movable groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figures 1-5 An embodiment of this utility model is provided: a heating and heat preservation device for casting large optical glass, including a heat preservation sleeve 3 and a heating transfer table 4. The heat preservation sleeve 3 is fixed at the top of the heating transfer table 4. A motor 2 is fixed on one side of the heat preservation sleeve 3 through a bracket, and a top cover 1 is connected to the top of the output shaft of the motor 2. An air pipe 7 is fixed inside the top cover 1.

[0025] Air jets 16 are evenly fixed on the inner side of the trachea 7, and the air jets 16 are arranged in a ring on the inner side of the trachea 7. The cross-section of the air jets 16 is all funnel-shaped, and the cross-section of the trachea 7 is annular.

[0026] Specifically, such as Figure 1 and Figure 4 As shown, during use, inert gas can be introduced from multiple directions through the annular distribution of the trachea 7 to improve the effectiveness of use;

[0027] Furthermore, a connecting pipe 5 is connected to one side of the trachea 7, a lower connecting plate 6 is fixed to the outside of the insulation sleeve 3, and a folding sealing cover 8 is connected to the top of the lower connecting plate 6, and an upper connecting plate 12 is fixed to the top of the folding sealing cover 8.

[0028] A sealing gasket 11 is fixed to the top of the upper connecting plate 12, and the top of the sealing gasket 11 is in contact with the bottom of the top cover 1.

[0029] Specifically, such as Figure 3 and Figure 5 As shown, during use, the sealing gasket 11 can achieve the purpose of sealing when the upper connecting plate 12 is connected to the top cover 1.

[0030] Furthermore, connecting blocks 9 are evenly fixed to the top of the upper connecting plate 12;

[0031] There are four sets of connecting blocks 9, which are arranged in a cross shape inside the top cover 1;

[0032] Specifically, such as Figure 1 and Figure 2 As shown, in use, the purpose can be restricted in multiple directions through the action of multiple sets of connecting blocks 9;

[0033] The connecting block 9 is provided with a locking hole 10 inside, and the top of the top cover 1 is movably connected to the mounting block 14;

[0034] The bottom end of the mounting block 14 is fixed with a movable block 13, and the top end of the top cover 1 is evenly provided with movable grooves 17, and all movable grooves 17 are connected to the movable block 13.

[0035] Specifically, such as Figure 3 and Figure 5 As shown, during use, the movable block 13 and the movable groove 17 serve to guide and limit the movement of the mounting block 14.

[0036] Furthermore, a locking block 15 is fixed on one side of each mounting block 14, and each locking block 15 is connected to the locking hole 10.

[0037] Working principle: When using this utility model, the preheating mold is placed into the insulation sleeve 3 through the clamping mechanism. The motor 2 starts and drives the top cover 1 to rotate, and the top of the top cover 1 and the top of the insulation sleeve 3 are closed. At the same time, the connecting plate 12 is pulled up to drive the folding closed cover 8 to unfold, and the top of multiple sets of connecting blocks 9 extends to the top of the top cover 1. At this time, the mounting block 14 is moved to drive the locking block 15 to connect with the locking hole 10. This can maintain the uniformity of the mold temperature, slow down heat loss, and avoid affecting the viscosity and fluidity of the glass melt. Then, inert gas is filled through the air pipe 7, which can form a heat insulation space and avoid the oxidation of the mold surface, which can reduce the mold life and contaminate the glass.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heating and heat preservation device for casting large optical glass, comprising a heat preservation sleeve (3) and a heating transfer table (4), wherein the top of the heating transfer table (4) is fixed with the heat preservation sleeve (3); characterized in that A motor (2) is fixed to one side of the insulation sleeve (3) by a bracket, and a top cover (1) is connected to the top of the output shaft of the motor (2). An air pipe (7) is fixed inside the top cover (1), and a connecting pipe (5) is connected to one side of the air pipe (7). A lower connecting plate (6) is fixed to the outside of the insulation sleeve (3), and a folding cover (8) is connected to the top of the lower connecting plate (6). An upper connecting plate (12) is fixed to the top of the folding cover (8), and connecting blocks (9) are evenly fixed to the top of the upper connecting plate (12). A locking hole (10) is provided inside each of the connecting blocks (9). An installation block (14) is movably connected to the top of the top cover (1), and a locking block (15) is fixed to one side of each installation block (14). The locking blocks (15) are all connected to the locking holes (10).

2. The heating and holding device for casting large blocks of optical glass according to claim 1, characterized in that: The air tube (7) is uniformly fixed with jet nozzles (16) on the inner side, and the jet nozzles (16) are arranged in a ring on the inner side of the air tube (7).

3. The heating and heat preservation device for casting large pieces of optical glass according to claim 2, characterized in that: The cross-section of the jet head (16) is all set in a trumpet shape, and the cross-section of the air pipe (7) is set in a ring shape.

4. The heating and heat preservation device for casting large optical glass according to claim 1, characterized in that: The bottom end of the mounting block (14) is fixed with a movable block (13), and the top end of the top cover (1) is uniformly provided with movable grooves (17), and the movable grooves (17) are all connected to the movable block (13).

5. A heating and heat preservation device for casting large pieces of optical glass according to claim 4, characterized in that: The width of each movable block (13) is matched with the width of each movable groove (17), and the cross-sections of both the movable block (13) and the movable groove (17) are convex.

6. The heating and holding device for casting large blocks of optical glass according to claim 1, characterized in that: The top end of the upper connecting plate (12) is fixed with a sealing gasket (11), and the top end of the sealing gasket (11) is in contact with the bottom end of the top cover (1).

7. A heating and heat preservation device for casting large pieces of optical glass according to claim 1, characterized in that: The connecting blocks (9) are provided in four groups, and the connecting blocks (9) are arranged in a cross shape inside the top cover (1).

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