Light and heat shielding device and method for sintering furnace and quartz glass sintering device

Abstract

The invention provides a shading and heat shielding device and method for a sintering furnace and a quartz glass sintering device. The shading and heat shielding device for the sintering furnace seals a furnace opening of the sintering furnace, and a glass rod penetrates through the furnace opening; the light and heat shielding device for the sintering furnace comprises a shielding assembly, a connecting assembly and a pressing assembly. The shielding assembly comprises a first shielding piece, a second shielding piece and a third shielding piece, at least one of the first shielding piece and the second shielding piece is provided with a mounting groove, and the third shielding piece is located in the mounting groove and abuts against the first shielding piece and the second shielding piece; a first through hole penetrating through the first shielding piece, the second shielding piece and the third shielding piece is formed in the shielding assembly, and a glass rod penetrates through the first through hole; the first shielding piece and the second shielding piece are detachably connected through a connecting assembly so as to open or close the mounting groove; the connecting assembly is arranged in the first penetrating hole in a penetrating mode and is configured to press the first shielding piece and the second shielding piece. The pressing assembly movably abuts against the shielding assembly, and the shielding assembly can abut against the sintering furnace.

Description

Technical Field

[0001] This application relates to the technical field of glass rod sintering, and in particular to a light-shielding and heat-blocking device and method for a sintering furnace, and a quartz glass sintering device. Background Art

[0002] During the production process of quartz glass rods, the quartz glass rods need to be placed in a graphite furnace and sintered at a temperature of about 1500 °C to make them vitrified. During the sintering process of the quartz glass rods, the light radiation and heat radiation in the graphite furnace are relatively strong, resulting in a large amount of heat overflowing from the furnace mouth, causing large power consumption and increasing production costs. In addition, the heat radiation and light radiation radiate from the furnace mouth to the hoisting device above the graphite furnace, etc., causing the temperature of these devices to be too high and prone to failure. Summary of the Invention

[0003] This application provides a light-shielding and heat-blocking device and method for a sintering furnace, and a quartz glass sintering device, to solve the problems of large power consumption during the sintering of glass rods and easy overheating and failure of the hoisting device in the known technology.

[0004] This application provides a light-shielding and heat-blocking device for a sintering furnace, which is used to close the furnace mouth of the sintering furnace, and the furnace mouth is for the glass rod to pass through; the light-shielding and heat-blocking device for the sintering furnace includes a shielding component, a connecting component, and a pressing component; the shielding component includes a first shielding member, a second shielding member, and a third shielding member, at least one of the first shielding member and the second shielding member is provided with an installation groove, the third shielding member is located in the installation groove, and the third shielding member abuts against the first shielding member and the second shielding member; a first through hole is provided on the shielding component, along a first direction, the first through hole penetrates through the first shielding member, the second shielding member, and the third shielding member, and the first through hole is for the glass rod to pass through; the first shielding member and the second shielding member are detachably connected by the connecting component for opening or closing the installation groove; the connecting component passes through the first through hole, and the connecting component is configured to press the first shielding member and the second shielding member together; the pressing component abuts against the shielding component movably, and the pressing component can press the shielding component tightly against the sintering furnace.

[0005] In a possible implementation manner, along the first direction, the second shielding member is arranged on one side of the first shielding member, and the side of the second shielding member close to the first shielding member is set as the installation surface; Along the first direction, the installation groove extends from the installation surface away from the first shielding member, and the first shielding member abuts against the installation surface and closes the installation groove.

[0006] In a possible implementation, the section of the connection component located within the first through-hole abuts against the shielding component, and the connection component is provided with a second through-hole through which the glass rod passes.

[0007] In a possible implementation, the connection component includes a first connecting member and a second connecting member, and the second through-hole penetrates through the first connecting member and the second connecting member; The first end of the first connecting member is located within the first through-hole, the second end of the first connecting member is exposed outside the first through-hole, and the second end of the first connecting member abuts against a side of the first shielding member away from the second shielding member; The first end of the second connecting member is detachably connected to the first end of the first connecting member, the second end of the second connecting member is exposed outside the first through-hole, and the second end of the second connecting member abuts against a side of the second shielding member away from the first shielding member.

[0008] In a possible implementation, the connection component further includes a fastener. The first connecting member is provided with a first connection hole, the second connecting member is provided with a second connection hole, and the fastener passes through the first connection hole and the second connection hole to connect the first connecting member and the second connecting member.

[0009] In a possible implementation, the material of the first shielding member is quartz material; and / or The material of the second shielding member is quartz material; and / or The material of the third shielding member is graphite material.

[0010] In a possible implementation, the pressing component includes: A pressing member, along the first direction, the pressing member is located on a side of the first shielding member away from the second shielding member, and the pressing member is configured to abut against the first shielding member; A lifting mechanism, drivingly connected to the pressing member, and the lifting mechanism is configured to drive the pressing member to move along the first direction.

[0011] In a possible implementation, the pressing component further includes: A first mounting member, drivingly connected to the lifting mechanism; A second mounting member, one end of which is connected to the first mounting member. Along the first direction, the second mounting member can move relative to the first mounting member, and the pressing member is spacedly arranged on a side of the second mounting member away from the first mounting member; An elastic member is located between the second mounting member and the pressing member. One end of the elastic member is elastically connected to the second mounting member, and the other end of the elastic member is elastically connected to the pressing member.

[0012] The present application also provides a light-shielding and heat-blocking method for a sintering furnace, which is applied to the above-mentioned light-shielding and heat-blocking device for a sintering furnace. The light-shielding and heat-blocking method for a sintering furnace includes the following steps: Place the third shielding member into the installation groove, and connect the first shielding member and the second shielding member through the connection assembly; Pass the tail end of the glass rod through the first through hole, and clamp the tail end of the glass rod through the clamping mechanism; Adjust the position of the second mounting member relative to the first mounting member, and match the glass rod to a preset position in the sintering furnace; Control the lifting mechanism to place the glass rod at the preset position in the sintering furnace, and press the shielding assembly against the sintering furnace through the pressing member and close the furnace mouth of the sintering furnace.

[0013] The present application also provides a quartz glass sintering device, including a sintering furnace and the above-mentioned light-shielding and heat-blocking device for a sintering furnace.

[0014] In the light-shielding and heat-blocking device for a sintering furnace of the present application, the shielding assembly can be sleeved on the tail end of the glass rod and then placed at the furnace mouth of the sintering furnace, so as to close the furnace mouth of the sintering furnace, avoid the thermal radiation and light radiation in the sintering furnace from radiating out from the furnace mouth, not only avoid heat loss, but also prevent the thermal radiation and light radiation from radiating to other devices outside the sintering furnace, resulting in the overheating and malfunction of these devices. In addition, the third shielding member in the shielding assembly is located between the first shielding member and the second shielding member, which can stably support the first shielding member and the second shielding member, and prevent the first shielding member and the second shielding member from deforming due to heat. At the same time, the first shielding member and the second shielding member are connected by the connection assembly and clamped by the connection assembly, and the shielding assembly is pressed against the sintering furnace through the pressing assembly, further ensuring that the first shielding member and the second shielding member do not deform or warp, and ensuring the sealing of the installation groove, avoiding high-temperature gas from entering the installation groove and affecting the service life of the third shielding member. Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of the quartz glass sintering device of the present application in an embodiment.

[0016] Figure 2 It is an exploded schematic diagram of the light-shielding and heat-blocking device for a sintering furnace of the present application in an embodiment.

[0017] Figure 3 It is a cross-sectional schematic diagram of the light-shielding and heat-blocking device for a sintering furnace of the present application in an embodiment.

[0018] Figure 4 The structural schematic diagram of the pressing component in an embodiment of the light-shielding and heat-blocking device for a sintering furnace according to the present application.

[0019] Figure 5 The process schematic diagram of the light-shielding and heat-blocking method for a sintering furnace according to the present application in an embodiment.

[0020] Main element symbol description: 300, quartz glass sintering device; 200, light-shielding and heat-blocking method for a sintering furnace; 100, light-shielding and heat-blocking device for a sintering furnace; Z, first direction; P, mounting surface; 10, shielding component; 11, first shielding member; 110, mounting groove; 12, second shielding member; 13, third shielding member; 14, first through hole; 20, connecting component; 21, first connecting member; 211, first connecting portion; 212, second connecting portion; 213, first connecting hole; 22, second connecting member; 221, third connecting portion; 222, fourth connecting portion; 223, fifth connecting portion; 224, second connecting hole; 23, fastener; 24, second through hole; 30, pressing component; 31, pressing member; 310, fifth through hole; 32, elastic member; 33, second mounting member; 330, fourth through hole; 331, mounting sleeve; 34, first mounting member; 340, third through hole; 40, sintering furnace; 41, furnace opening; 50, glass rod; 60, lifting mechanism; 70, clamping mechanism.

[0021] The following specific embodiments will further illustrate the present application in conjunction with the above-mentioned drawings. Specific Embodiments

[0022] The following description will refer to the drawings to more comprehensively describe the content of the present application. The exemplary embodiments shown in the drawings are of the present application. However, the present application can be implemented in many different forms and should not be construed as limited to the exemplary embodiments set forth herein. These exemplary embodiments are provided to make the present application thorough and complete and to fully convey the scope of the present application to those skilled in the art. Similar reference numerals denote the same or similar components.

[0023] The terms used herein are for the purpose of describing particular exemplary embodiments only and are not intended to limit the present application. As used herein, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include the plural forms as well. Further, when used herein, "comprises" and / or "comprising" and / or "has", integers, steps, operations, components and / or components, but does not exclude the presence or addition of one or more other features, regions, integers, steps, operations, components and / or their groups.

[0024] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. In addition, unless clearly defined in the text, terms such as those defined in a general dictionary should be interpreted as having a meaning consistent with their meaning in the relevant art and the content of this application, and will not be interpreted as idealized or overly formal meanings.

[0025] The following further describes in detail the specific embodiments of this application with reference to the accompanying drawings.

[0026] As Figure 1 shown, this embodiment provides a quartz glass sintering device 300, including a sintering furnace 40 and a light-shielding and heat-blocking device 100 for the sintering furnace. The light-shielding and heat-blocking device 100 for the sintering furnace is used to close the furnace opening 41 of the sintering furnace 40. The furnace opening 41 is located at the top of the sintering furnace 40, and the furnace opening 41 allows a glass rod 50 to pass through. The sintering furnace 40 can be a high-temperature graphite furnace, etc., and the glass rod 50 is a quartz glass rod 50. The tail end of the glass rod 50 is fixed to a hoisting device, and the glass rod 50 is moved downward from the furnace opening 41 of the sintering furnace 40 into the sintering furnace 40 through the hoisting device. Subsequently, the glass rod 50 needs to be sintered in the sintering furnace 40 until it is vitrified. After the glass rod 50 is vitrified, the glass rod 50 is taken out through the hoisting device.

[0027] As Figures 1 to 3 shown, this embodiment provides a light-shielding and heat-blocking device 100 for a sintering furnace. The light-shielding and heat-blocking device 100 for the sintering furnace includes a shielding component 10, a connecting component 20, and a pressing component 30. The shielding component 10 includes a first shielding member 11, a second shielding member 12, and a third shielding member 13. At least one of the first shielding member 11 and the second shielding member 12 is provided with an installation groove 110, and the third shielding member 13 is located in the installation groove 110. When the third shielding member 13 is located in the installation groove 110, the third shielding member 13 abuts against the first shielding member 11 and the second shielding member 12. A first through hole 14 is provided on the shielding component 10. Along the first direction Z, the first through hole 14 penetrates through the first shielding member 11, the second shielding member 12, and the third shielding member 13. The first direction Z is the direction in which the height of the sintering furnace 40 is located. The first through hole 14 allows the tail end of the glass rod 50 to pass through. The first shielding member 11 and the second shielding member 12 are detachably connected by the connecting component 20 for opening or closing the installation groove 110 to facilitate the taking and placing of the third shielding member 13. The connecting component 20 passes through the first through hole 14, and the connecting component 20 is configured to press the first shielding member 11 and the second shielding member 12 together. The pressing component 30 movably abuts against the shielding component 10, and the pressing component 30 can press the shielding component 10 against the sintering furnace 40.

[0028] Thus, in the light-shielding and heat-blocking device 100 for a sintering furnace of the present application, the shielding assembly 10 can be sleeved on the tail end of the glass rod 50 and placed at the furnace opening 41 of the sintering furnace 40, thereby closing the furnace opening 41 of the sintering furnace 40, avoiding the thermal radiation and light radiation in the sintering furnace 40 from radiating out of the furnace opening 41, not only avoiding heat loss, but also preventing the thermal radiation and light radiation from radiating to other devices outside the sintering furnace 40 and causing these devices to malfunction due to overheating. In addition, the third shielding member 13 in the shielding assembly 10 is located between the first shielding member 11 and the second shielding member 12, and can stably support the first shielding member 11 and the second shielding member 12, preventing the first shielding member 11 and the second shielding member 12 from deforming due to heat. At the same time, the first shielding member 11 and the second shielding member 12 are connected by the connecting assembly 20 and clamped by the connecting assembly 20, and the shielding assembly 10 is pressed against the sintering furnace 40 by the pressing assembly 30, further ensuring that the first shielding member 11 and the second shielding member 12 do not deform or warp, and ensuring the sealing of the installation groove 110, avoiding high-temperature gas from entering the installation groove 110 and affecting the service life of the third shielding member 13.

[0029] Please refer to Figures 1 to 3 In an embodiment, the material of the first shielding member 11 is quartz, the material of the second shielding member 12 is quartz, and the material of the third shielding member 13 is graphite.

[0030] The first shielding member 11 and the second shielding member 12 are made of heat-insulating materials, which can effectively block thermal radiation, improve the heat-insulating effect of the sintering furnace 40, and avoid excessive heat damage. The third shielding member 13 is made of graphite, which can effectively block light radiation and thermal radiation. Combining the first shielding member 11, the second shielding member 12, and the third shielding member 13 to form the shielding assembly 10 can effectively block thermal radiation and light radiation. In addition, compared with a shielding plate made of quartz alone, the shielding plate made of quartz is prone to deformation or bending, affecting its service life. And compared with a shielding plate made of graphite alone, the shielding plate made of graphite is prone to oxidation and gradually fails in a high-temperature environment.

[0031] Please refer to Figures 1 to 3 In an embodiment, the first shielding member 11 is generally in a disc structure, and the outer diameter of the first shielding member 11 is larger than the diameter of the furnace opening 41. The second shielding member 12 is generally in a cylindrical structure, and the outer diameter of the second shielding member 12 is the same as that of the first shielding member 11.

[0032] Along the first direction Z, the second shielding member 12 is disposed on one side of the first shielding member 11, and the second shielding member 12 is coaxially arranged with the first shielding member 11. The side of the second shielding member 12 close to the first shielding member 11 is defined as the mounting surface P. Along the first direction Z, the mounting groove 110 extends from the mounting surface P towards the side away from the first shielding member 11. The first shielding member 11 abuts against the mounting surface P and closes the mounting groove 110 to prevent the high-temperature gas from the outside from entering the mounting groove 110 and causing the third shielding member 13 to oxidize and fail.

[0033] The third shielding member 13 is generally in a disc structure. The thickness of the third shielding member 13 is the same as the groove depth of the mounting groove 110, and the shape of the third shielding member 13 is the same as that of the mounting groove 110, so that the third shielding member 13 placed in the mounting groove 110 can stably support the first shielding member 11 and the second shielding member 12.

[0034] Please further combine Figures 1 to 3 In an embodiment, the portion of the connecting component 20 located within the first through hole 14 abuts against the shielding component 10. The first through hole 14 is located at the center of the shielding component 10. When the connecting component 20 passes through the first through hole 14, the outer peripheral surface of the connecting component 20 abuts against the hole wall of the first through hole 14 to prevent the high-temperature gas from entering the mounting groove 110 from the first through hole 14.

[0035] A second through hole 24 is provided on the connecting component 20. The second through hole 24 is located at the center of the connecting component 20 and is coaxially arranged with the first through hole 14. Along the first direction Z, the second through hole 24 penetrates through the connecting component 20, and the tail end of the glass rod 50 passes through the second through hole 24.

[0036] Further, the connecting component 20 includes a first connecting member 21 and a second connecting member 22. The second through hole 24 penetrates through the first connecting member 21 and the second connecting member 22, and the aperture of the second through hole 24 is larger than the outer diameter of the tail end of the glass rod 50 to ensure that the tail end of the glass rod 50 can pass through the first connecting member 21 and the second connecting member 22. The first connecting member 21 and the second connecting member 22 are made of high-temperature resistant materials.

[0037] The first end of the first connecting member 21 is located within the first through hole 14, the second end of the first connecting member 21 is exposed outside the first through hole 14, and the second end of the first connecting member 21 abuts against the side of the first shielding member 11 away from the second shielding member 12. The first end of the second connecting member 22 is detachably connected to the first end of the first connecting member 21. The second end of the second connecting member 22 is exposed outside the first through hole 14, and the second end of the second connecting member 22 abuts against the side of the second shielding member 12 away from the first shielding member 11.

[0038] In this embodiment, the cross-sectional shape of the first connecting member 21 is generally "T"-shaped, and includes a first connecting portion 211 and a second connecting portion 212. Along the first direction Z, the second connecting portion 212 is integrally formed at one end of the first connecting portion 211. The outer diameter of the first connecting portion 211 is greater than that of the second connecting portion 212. The first through hole 14 penetrates through the first connecting portion 211 and the second connecting portion 212. Among them, the second connecting portion 212 is located within the first through hole 14, and the outer peripheral surface of the second connecting portion 212 abuts against the hole wall of the first through hole 14. The first connecting portion 211 is located outside the first through hole 14, and the first connecting portion 211 abuts against the side of the first shielding member 11 away from the second shielding member 12.

[0039] The cross-sectional shape of the second connecting member 22 is generally stepped, and includes a third connecting portion 221, a fourth connecting portion 222, and a fifth connecting portion 223 arranged in sequence. The second through hole 24 penetrates through the third connecting portion 221, the fourth connecting portion 222, and the fifth connecting portion 223, and the outer diameters of the third connecting portion 221, the fourth connecting portion 222, and the fifth connecting portion 223 decrease in sequence. The third connecting portion 221 is located outside the first through hole 14, and the third connecting portion 221 abuts against the side of the second shielding member 12 away from the first shielding member 11. Along the first direction Z, the fourth connecting portion 222 is integrally formed on the side of the third connecting portion 221 close to the first shielding member 11, and the fifth connecting portion 223 is integrally formed on the side of the fourth connecting portion 222 away from the third connecting portion 221. The fourth connecting portion 222 is located within the first through hole 14, and the outer diameter of the fourth connecting portion 222 abuts against the hole wall of the first through hole 14. Along the first direction Z, the fourth connecting portion 222 and the second connecting portion 212 abut against each other.

[0040] Among them, an annular groove is formed on the inner peripheral surface of the second connecting portion 212, and the fifth connecting portion 223 is located within the annular groove.

[0041] Please also combine Figures 1 to 3 In an embodiment, the connecting assembly 20 further includes a fastener 23. A first connecting hole 213 is provided on the first connecting member 21, and a second connecting hole 224 is provided on the second connecting member 22. The fastener 23 passes through the first connecting hole 213 and the second connecting hole 224 to connect the first connecting member 21 and the second connecting member 22.

[0042] Along the first direction Z, the first connecting hole 213 extends from the end surface of the second connecting portion 212 away from the first connecting portion 211 toward the side of the first connecting portion 211, and the second connecting hole 224 extends from the end surface of the fourth connecting portion 222 away from the third connecting portion 221 toward the side of the third connecting portion 221, and the second connecting hole 224 penetrates through the fourth connecting portion 222 and the third connecting portion 221.

[0043] The fastener 23 is a countersunk bolt or other element, and the first connecting hole 213 and the second connecting hole 224 are threaded holes, so as to thread the fastener 23 with the first connecting member 21 and the second connecting member 22 to facilitate the disassembly and assembly of the first connecting member 21 and the second connecting member 22.

[0044] In this embodiment, there are multiple fasteners 23 , which are evenly spaced around the axis of the first through hole 14 to ensure that the connecting component 20 can clamp the central area of ​​the shielding component 10 where the first through hole 14 is opened.

[0045] Please combine again Figures 1 to 4 In one embodiment, the pressing assembly 30 includes a pressing member 31 and a lifting mechanism 60 .

[0046] Along the first direction Z, the clamping member 31 is located on a side of the first shielding member 11 away from the second shielding member 12. The clamping member 31 is configured to abut against the first shielding member 11 to press the first shielding member 11 against the second shielding member 12 to prevent external high-temperature gas from entering the installation groove 110 through a gap between the first shielding member 11 and the second shielding member 12.

[0047] The lifting mechanism 60 is connected to the pressing member 31 in a transmission manner, and is configured to drive the pressing member 31 to move along the first direction Z. The lifting mechanism 60 may be a lifting device such as a screw slide or a cylinder slide.

[0048] In addition, a clamping mechanism 70 can be installed on the lifting mechanism 60, and the clamping mechanism 70 is configured to clamp the tail end of the glass rod 50, so that the clamped glass rod 50 is driven to enter or leave the sintering furnace 40 through the lifting mechanism 60. In this way, when the lifting mechanism 60 delivers the glass rod 50 to the predetermined position of the sintering furnace 40, the lifting mechanism 60 also presses the shielding assembly 10 against the furnace opening 41 through the pressing member 31, which can completely close the furnace opening 41 on the one hand, and can also press the first shielding member 11 against the second shielding member 12 on the other hand to prevent the external high-temperature gas from entering the installation groove 110. In addition, the lifting mechanism 60 can simultaneously drive the pressing member 31 and the glass rod 50 to move, so that a single drive can achieve two driving actions, thereby reducing production costs.

[0049] Please combine again Figures 1 to 4 In one embodiment, the clamping assembly 30 further includes a first mounting member 34 , a second mounting member 33 and an elastic member 32 .

[0050] The first mounting member 34 is generally a hollow cylindrical structure, and the first mounting member 34 is arranged along the first direction Z, with the opening of the first mounting member 34 facing downward. A third through hole 340 is formed at the center of the first mounting member 34, and along the first direction Z, the third through hole 340 penetrates through the first mounting member 34. The first mounting member 34 is sleeved on the driving end of the lifting mechanism 60 through the third through hole 340, and the first mounting member 34 is fixed to the driving end of the lifting mechanism 60, so as to drive the first mounting member 34 to move along the first direction Z through the lifting mechanism 60. In addition, the clamping mechanism 70 is installed in the area where the driving end of the lifting mechanism 60 extends into the first mounting member 34.

[0051] The second mounting member 33 is generally a disc-shaped structure, and the second mounting member 33 is located at the opening of the first mounting member 34. An installation sleeve 331 is provided in a ring shape at one end of the second mounting member 33 close to the first mounting member 34. The bottom end of the first mounting member 34 can be connected to the installation sleeve 331 through a threaded structure, so that the second mounting member 33 can rotate relative to the first mounting member 34, and during the rotation of the second mounting member 33 relative to the first mounting member 34, the second mounting member 33 can move relative to the first mounting member 34 along the first direction Z, thereby adjusting the height of the second mounting member 33 in the first direction Z.

[0052] Along the first direction Z, the pressing member 31 is arranged at intervals on the side of the second mounting member 33 away from the first mounting member 34, and the pressing member 31 is generally a disc structure.

[0053] The elastic member 32 is a compression spring, and the elastic member 32 is located between the second mounting member 33 and the pressing member 31. One end of the elastic member 32 is elastically connected to the second mounting member 33, and the other end of the elastic member 32 is elastically connected to the pressing member 31, so as to prevent the lifting mechanism 60 from easily causing excessive force on the shielding assembly 10 when pressing the shielding assembly 10 against the sintering furnace 40 through the pressing member 31 and damaging the shielding assembly 10.

[0054] The pressing member 31 is generally a disc structure, and the size of the pressing member 31 is the same as that of the first shielding member 11, so as to ensure that the pressing member 31 can press against the edge of the first shielding member 11, thereby ensuring that the gap between the first shielding member 11 and the second shielding member 12 is closed.

[0055] In this embodiment, a fourth through hole 330 is formed at the center of the second mounting member 33, and a fifth through hole 310 is formed at the center of the pressing member 31. The diameters of the fourth through hole 330 and the fifth through hole 310 are larger than the outer diameter of the tail end of the glass rod 50, so that the tail end of the glass rod 50 can pass through the fifth through hole 310 and the fourth through hole 330 and be clamped by the clamping mechanism 70.

[0056] As Figure 5 shown, and refer to Figures 1 to 2, this embodiment also provides a light-shielding and heat-blocking method 200 for a sintering furnace, which is applied to the above-mentioned light-shielding and heat-blocking device 100 for a sintering furnace. The light-shielding and heat-blocking method 200 for a sintering furnace includes the following steps: S1. Place the third shielding member 13 into the installation groove 110, and connect the first shielding member 11 and the second shielding member 12 through the connection assembly 20.

[0057] In this step, pass the first connecting member 21 through the first through-hole 14, and sleuth the second connecting member 22 within the first connecting member 21. Subsequently, connect the first connecting member 21 and the second connecting member 22 through the fastener 23, and clamp the central area parts of the first shielding member 11 and the second shielding member 12 through the first connecting member 21 and the second connecting member 22.

[0058] S2. Pass the tail end of the glass rod 50 through the first through-hole 14, and clamp the tail end of the glass rod 50 through the clamping mechanism 70.

[0059] In this step, first pass the tail end of the glass rod 50 upward through the second through-hole 24 of the connection assembly 20, and then clamp the tail end of the glass rod 50 through the clamping mechanism 70, so that the glass rod 50 can be driven by the lifting mechanism 60 to move up and down.

[0060] S3. Adjust the position of the second mounting member 33 relative to the first mounting member 34, and match the glass rod 50 to a preset position within the sintering furnace 40.

[0061] In this step, adjust the height of the second mounting member 33 in the first direction Z to ensure that after the lifting mechanism 60 places the glass rod 50 into the preset position within the sintering furnace 40, the lifting mechanism 60 exactly presses the shielding assembly 10 against the furnace mouth 41 of the sintering furnace 40 through the pressing member 31.

[0062] S4. Control the lifting mechanism 60 to place the glass rod 50 into the preset position within the sintering furnace 40, and press the shielding assembly 10 against the sintering furnace 40 through the pressing member 31 and close the furnace mouth 41 of the sintering furnace 40.

[0063] In this step, when the glass rod 50 starts sintering in the preset position within the sintering furnace 40, the shielding assembly 10 is pressed against the furnace mouth 41 to completely close the furnace mouth 41, thereby preventing heat radiation and light radiation from radiating outside the sintering furnace 40 from the furnace mouth 41 during the sintering operation of the sintering furnace 40.

[0064] In the above text, the specific implementation manners of the present application are described with reference to the accompanying drawings. However, those of ordinary skill in the art can understand that without departing from the scope of the present application, various changes and substitutions can also be made to the specific implementation manners of the present application. These changes and substitutions all fall within the scope defined by the present application.

Claims

1. A light shielding and heat shielding device for a sintering furnace, used to close the furnace opening of the sintering furnace, wherein the furnace opening is for a glass rod to pass through; characterized in that: The light-shielding and heat-shielding device for a sintering furnace comprises: A shielding component, comprising a first shielding member, a second shielding member and a third shielding member, wherein at least one of the first shielding member and the second shielding member is provided with a mounting groove, the third shielding member is located in the mounting groove, and the third shielding member abuts against the first shielding member and the second shielding member; a first through hole is provided on the shielding component, and along a first direction, the first through hole penetrates the first shielding member, the second shielding member and the third shielding member, and the first through hole is for the glass rod to pass through; A connecting component, through which the first shielding member and the second shielding member are detachably connected, and used to open or close the installation slot; the connecting component is penetrated through the first through hole, and the connecting component is configured to press the first shielding member and the second shielding member tightly; A pressing component is used to movably press against the shielding component, and the pressing component can press the shielding component against the sintering furnace.

2. The light shielding and heat shielding device for a sintering furnace according to claim 1, characterized in that: Along the first direction, the second shielding member is arranged on one side of the first shielding member, and a side of the second shielding member close to the first shielding member is set as a mounting surface; Along the first direction, the installation slot extends from the installation surface toward a side away from the first shielding member, and the first shielding member abuts against the installation surface and closes the installation slot.

3. The light shielding and heat shielding device for a sintering furnace according to claim 2, characterized in that: The portion of the connecting component located in the first through hole abuts against the shielding component, and a second through hole is provided on the connecting component, and the second through hole is used for the glass rod to pass through.

4. The light shielding and heat shielding device for a sintering furnace according to claim 3, characterized in that: The connecting assembly comprises a first connecting member and a second connecting member, and the second through hole penetrates the first connecting member and the second connecting member; The first end of the first connecting member is located in the first through hole, the second end of the first connecting member is exposed from the first through hole, and the second end of the first connecting member abuts against a side of the first shielding member away from the second shielding member; The first end of the second connecting member is detachably connected to the first end of the first connecting member, the second end of the second connecting member is exposed from the first through hole, and the second end of the second connecting member abuts against a side of the second shielding member away from the first shielding member.

5. The light shielding and heat shielding device for a sintering furnace according to claim 4, characterized in that: The connection assembly also includes a fastener, the first connection member is provided with a first connection hole, the second connection member is provided with a second connection hole, and the fastener is passed through the first connection hole and the second connection hole to connect the first connection member and the second connection member.

6. The light shielding and heat shielding device for a sintering furnace according to claim 1, characterized in that: The first shielding member is made of quartz; and / or The second shielding member is made of quartz; and / or The third shielding member is made of graphite.

7. The light shielding and heat shielding device for a sintering furnace according to claim 1, characterized in that: The clamping assembly comprises: A pressing member, located at a side of the first shielding member away from the second shielding member along the first direction, and configured to abut against the first shielding member; A lifting mechanism is connected to the pressing member in a transmission manner, and the lifting mechanism is configured to drive the pressing member to move along the first direction.

8. The light shielding and heat shielding device for a sintering furnace according to claim 7, characterized in that: The clamping assembly also includes: A first mounting member, drivingly connected to the lifting mechanism; A second mounting member, one end of which is connected to the first mounting member, the second mounting member can move relative to the first mounting member along the first direction, and the pressing member is arranged at intervals on a side of the second mounting member away from the first mounting member; The elastic member is located between the second mounting member and the pressing member, one end of the elastic member is elastically connected to the second mounting member, and the other end of the elastic member is elastically connected to the pressing member.

9. A light shielding and heat shielding method for a sintering furnace, characterized in that: The light shielding and heat shielding device for a sintering furnace as claimed in any one of claims 1 to 8, wherein the light shielding and heat shielding method for a sintering furnace comprises the following steps: Place the third shielding member into the installation slot, and connect the first shielding member to the second shielding member through a connecting assembly; Passing the tail end of the glass rod through the first through hole, and clamping the tail end of the glass rod by a clamping mechanism; Adjusting the position of the second mounting member relative to the first mounting member and matching the glass rod with a preset position in the sintering furnace; The lifting mechanism is controlled to put the glass rod into the preset position in the sintering furnace, and the shielding assembly is pressed onto the sintering furnace by a pressing member to close the furnace opening of the sintering furnace.

10. A quartz glass sintering device, characterized in that: The invention comprises a sintering furnace and a light shielding and heat shielding device for the sintering furnace as claimed in any one of claims 1 to 8.

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