Blanking forming device for glass plate production

Abstract

The utility model discloses a blanking and forming device for glass plate production. The blanking and forming device comprises a blanking device, a muffle furnace, a blanking pipe, a flow guide pipe, an elastic heat preservation cylinder group and a heat preservation sealing brick group, wherein the muffle furnace is arranged below the blanking device at intervals and is provided with an overflow groove; the blanking pipe is communicated with the bottom end of the blanking device; the lower end of the discharging pipe is downwards inserted into the top end of the flow guide pipe. The elastic heat preservation cylinder set and the heat preservation sealing brick set are sequentially arranged at the top ends of the discharging pipe and the flow guide pipe in a sealed and sleeved mode in the axial direction. The upper end of the elastic heat-insulating cylinder group is hermetically connected with the blanking device, and the opposite lower end of the elastic heat-insulating cylinder group is elastically and hermetically propped against the heat-insulating sealing brick group, so that the heat-insulating sealing brick group is hermetically propped against the top end of the muffle furnace. Compared with a traditional structure, the device is easy to operate, short in operation time, good in sealing and heat preservation effect and capable of saving manpower and material resource cost.

Description

Technical Field

[0001] The utility model relates to the technical field of glass plate production devices, in particular to a blanking and forming device for glass plate production. Background Art

[0002] The overflow method is the mainstream production process for producing liquid crystal substrate glass and touch cover glass. The main processes at the hot end include: melting, clarifying and homogenizing, forming, and cutting. Quartz sand and other raw materials are melted in a kiln according to a certain ratio to form high-temperature glass liquid; the glass liquid flows through the platinum channel device for clarification and debubbling, stirring and homogenizing, and then enters the overflow tank of the muffle furnace for overflow forming to form a glass plate with a certain width and thickness, which is then shaped and annealed to remove stress, and finally cut into pieces of glass plates that meet specifications.

[0003] There is a feeding pipe under the feeding device at the end of the channel. The feeding pipe is inserted into the L-shaped platinum tube of the muffle furnace, which is connected to the overflow tank. The glass liquid flows from the feeding device into the L-shaped platinum tube and then into the overflow tank. Since the equipment will expand after heating, the position of the feeding pipe and the L-shaped platinum tube of the muffle furnace is not completely fixed at the beginning, but will be docked after the heating is completed or the glass liquid flows into the overflow tank. After the docking is completed, the exposed part of the feeding pipe must be sealed with insulation materials to ensure the temperature of the internal glass liquid. If the sealing and insulation are not done well, it will cause the local temperature to be too low, affecting the fluidity of the glass liquid and ultimately affecting the molding quality of the glass plate.

[0004] In the prior art, generally multiple layers of insulation cotton are placed between the feeding device and the muffle furnace, and the exposed part of the feeding pipe is sealed and insulated by the insulation cotton. However, since the entire docking and sealing operation is carried out at high temperature, the accuracy and convenience of the operation are difficult to guarantee, and the final sealing structure often fails to achieve the desired effect; furthermore, since the L-shaped platinum tube is connected to the overflow tank, if the sealing and insulation are not done in time, the overflow tank will cool down quickly, causing serious damage and reducing its service life, so the entire sealing process must be completed within a few minutes; and the operator is wearing a high-temperature suit and working in an environment of several hundred degrees. If the time is too long, he will be dehydrated and feel uncomfortable, so it is particularly important to design a structure that is convenient, easy to operate, and has good sealing performance.

[0005] In addition, due to process requirements, the muffle furnace needs to be tilted at a certain angle during certain time periods. According to the existing structure, this will cause the sealing structure between the feed pipe and the muffle furnace to be compressed or expanded, thereby causing damage to the sealing structure. After this section of the process is completed, it must be sealed and insulated again, which consumes a lot of manpower and material resources. Utility Model Content

[0006] The utility model provides a blanking and forming device for glass plate production, which solves the technical problems of poor thermal insulation and sealing effect in the existing structure, and easy damage to the corresponding structure and shortened service life due to failure to do a good job of sealing and thermal insulation in time.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A blanking and forming device for glass plate production comprises: a blanking device, a muffle furnace with an overflow groove arranged below the blanking device, a blanking pipe connected to the bottom end of the blanking device, a guide pipe connected to the overflow groove and with the top end extending upward from the muffle furnace, an elastic heat-insulating tube group and a heat-insulating sealing brick group; the lower end of the blanking pipe is inserted downward into the top end of the guide pipe, and the elastic heat-insulating tube group and the heat-insulating sealing brick group are sequentially and sealedly sleeved on the top ends of the blanking pipe and the guide pipe along the axial direction; the elastic heat-insulating tube group is telescopically arranged along the axial direction, the upper end of the elastic heat-insulating tube group is seal-connected to the blanking device, and the lower end thereof is elastically sealed against the heat-insulating sealing brick group, so as to make the heat-insulating sealing brick group seal against the top end of the muffle furnace.

[0009] Furthermore, the elastic insulation tube group includes an upper bottom plate sealed and fixed to the bottom end of the discharge device, a lower bottom plate spaced relative to the upper bottom plate, an elastic member for supplying telescopic elastic force, and an insulation ring group for sealing and insulating the discharge pipe and deforming under force; the elastic member is connected between the upper bottom plate and the lower bottom plate; the insulation ring group is hollow cylindrical, and the sealing sleeve is mounted on the outer circle of the discharge pipe, and the upper end of the insulation ring group is sealed and connected to the upper bottom plate, and the opposite lower end is sealed and connected to the lower bottom plate.

[0010] Furthermore, the elastic member includes a plurality of pressure springs, which are evenly spaced along the circumference of the discharge tube, and the upper and lower ends of each pressure spring are detachably connected to the upper base plate and the lower base plate; or, the elastic member is a pressure spring, which is sleeved on the outer circle of the discharge tube, and the upper and lower ends of each pressure spring are detachably connected to the upper base plate and the lower base plate.

[0011] Furthermore, the insulation ring group includes an insulation ring made of flexible material and used for thermal insulation, an upper pressure plate and a lower pressure plate for pressing the insulation ring, and multiple groups of fasteners that play a connecting and fixing role; the insulation ring is hollow cylindrical and is sleeved on the outer circle of the discharge pipe. The upper end of the insulation ring is also sealed and pressed on the lower surface of the upper base plate by the upper pressure plate, and is fixed to the upper base plate by fasteners; the lower end of the insulation ring is also sealed and pressed on the upper surface of the lower base plate by the lower pressure plate, and is fixed to the lower base plate by fasteners.

[0012] Furthermore, the insulation ring includes an inner ring and an outer ring made of high-temperature resistant cloth, and an insulation layer made of high-temperature resistant fiber blanket or fiber cotton; the outer ring is sleeved outside the inner ring; and the insulation layer is filled between the inner ring and the outer ring.

[0013] Furthermore, the inner ring, the heat insulation layer and the outer ring are sewn into a whole by high temperature resistant silk thread; the thickness of the heat insulation layer is ≥15mm, and the number of the heat insulation layer is multiple layers.

[0014] Furthermore, the thermal insulation sealing brick group includes thermal insulation bricks supported on the top of the muffle furnace and sleeved on the outside of the top of the guide tube, sealing bricks stacked on the thermal insulation bricks and sleeved on the discharge pipe, and sealing cotton laid on the sealing bricks and sleeved on the discharge pipe; the sealing cotton is used to seal against the lower end of the elastic thermal insulation tube group, so that the thermal insulation sealing brick group is sealed against the top of the muffle furnace under the action of the elastic thermal insulation tube group.

[0015] Furthermore, the thickness of the sealing cotton is ≥5mm.

[0016] Furthermore, the thermal insulation bricks and the sealing bricks are all integral bricks with a hole in the middle.

[0017] Furthermore, an opening is provided in the middle of the insulation brick and the sealing brick for the feeding pipe or the guide pipe to pass through; the insulation brick comprises two half insulation bricks split in half along the opening, the inner side edge of each half insulation brick is concave to form a semicircular opening, and the opposite outer side edge is bent upward to form a first sealing edge; and / or, the sealing brick comprises two half sealing bricks split in half along the through hole, the inner side edge of each half sealing brick is concave to form a semicircular opening, and the opposite outer side edge is bent downward to form a second sealing edge, and the first sealing edge is used to seal the gap between the two half sealing bricks, and the second sealing edge is used to seal the gap between the two half insulation bricks.

[0018] The utility model has the following beneficial effects:

[0019] During normal production, compared with the traditional sealing structure, multiple layers of thermal insulation cotton are manually placed between the muffle furnace and the feeding device. Since the operator is operating at high temperature, there are inevitably misalignments and gaps between the layers of thermal insulation cotton. Although there will be improvements after compression, it is often difficult to achieve an ideal sealing effect. Moreover, since it is a manual operation, the entire operation process is complicated and time-consuming, and the labor intensity of the workers is high. Compared with the traditional structure, the utility model device is simple to operate, has a short operation time, and has a good sealing and thermal insulation effect.

[0020] When the insertion depth of the feeding tube is adjusted, compared with the traditional sealing structure, multiple layers of thermal insulation cotton are manually placed between the muffle furnace and the feeding device. When the muffle furnace is adjusted to rise or fall, the multiple layers of thermal insulation cotton may not have enough compression space or rebound distance, and the sealing and thermal insulation effect cannot be maintained. Therefore, when adjusting the insertion depth of the feeding tube, all the multiple layers of thermal insulation cotton need to be removed and the corresponding number of thermal insulation cottons need to be replaced. During this operation, some parts are subjected to a short-term cooling shock, which may affect their performance and life. The elastic thermal insulation cylinder group in the utility model can follow the muffle furnace to rise and fall, and ensure that the thermal insulation sealing brick group and the muffle furnace maintain a sealing and thermal insulation effect, and no replacement or other operations are required, which not only saves manpower and material resources, but also has a good thermal insulation effect.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 It is a general schematic diagram of the connection between the blanking and forming device for glass plate production and the muffle furnace in the preferred embodiment of the utility model;

[0024] Figure 2 It is a structural schematic diagram of a blanking and forming device for glass plate production according to a preferred embodiment of the utility model;

[0025] Figure 3 yes Figure 2 Spatial diagram of the middle insulation ring Figure 1 ;

[0026] Figure 4 yes Figure 2 Spatial diagram of the middle insulation ring Figure 2 ;

[0027] Figure 5 This is the cross section of the insulation ring Figure 1 ;

[0028] Figure 6 This is the cross section of the insulation ring Figure 2 ;

[0029] Figure 7 yes Figure 2 Overall schematic diagram of the middle seal insulation structure;

[0030] Figure 8 yes Figure 7 Schematic diagram of middle insulation bricks and sealing bricks Figure 1 ;

[0031] Fig. 9 yes Figure 7 Schematic diagram of middle insulation bricks and sealing bricks Figure 2 ;

[0032] Fig.10 This is a working diagram of the feeding and heat preservation device under normal production conditions;

[0033] Fig.11 It is a working schematic diagram of the feeding and heat preservation device when the muffle furnace is tilted;

[0034] Fig.12 It is a schematic diagram of the working of the feeding insulation device when the insertion depth of the feed pipe is adjusted.

[0035] Legend:

[0036] 1. Feeding device; 2. Feeding pipe; 3. Guide pipe; 4. Overflow trough; 5. Muffle furnace; 6. Elastic insulation tube group; 61. Upper bottom plate; 62. Lower bottom plate; 63. Elastic member; 64. Insulation ring; 641. Inner ring; 642. Insulation layer; 643. Outer ring; 65. Upper pressure plate; 66. Lower pressure plate; 7. Insulation sealing brick group; 71. Insulation brick; 711. Semi-insulation brick; 712. First sealing edge; 72. Sealing brick; 721. Semi-sealing brick; 722. Second sealing edge; 73. Sealing cotton. DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. However, the present invention can be implemented in a variety of different ways as defined and covered below.

[0038] Reference Figure 1 , Fig.10 and Fig.12 The preferred embodiment of the utility model provides a blanking and forming device for glass plate production, comprising: a blanking device 1, a muffle furnace 5 with an overflow groove 4 arranged at an interval below the blanking device 1, a blanking pipe 2 connected to the bottom end of the blanking device 1, a guide pipe 3 connected to the overflow groove 4 and with the top end extending upward from the muffle furnace 5, an elastic insulation tube group 6 and an insulation sealing brick group 7; the lower end of the blanking pipe 2 is inserted downward into the top end of the guide pipe 3, and the elastic insulation tube group 6 and the insulation sealing brick group 7 are sequentially sealed and sleeved on the top ends of the blanking pipe 2 and the guide pipe 3 along the axial direction; the elastic insulation tube group 6 is telescopically arranged along the axial direction, and its upper end is sealingly connected to the blanking device 1, and its opposite lower end elastically seals against the insulation sealing brick group 7, so as to make the insulation sealing brick group 7 seal against the top end of the muffle furnace 5.

[0039] During normal production, Fig.10As shown, the high-temperature glass liquid enters the feeding device 1, the feeding pipe 2 extends into the guide pipe 3, the glass liquid enters the guide pipe 3 along the feeding pipe 2, and then enters the overflow tank 4 from the guide pipe 3, and forms a glass plate through overflow forming. The muffle furnace 5 rises a distance under the action of the lifting structure to ensure that the feeding pipe 2 extends into the guide pipe 3 by a distance of 50mm to 300mm. When the muffle furnace 5 rises, since the elastic insulation tube group 6 is set to be telescopic along the axial direction, the insulation sealing brick group 7 will always elastically seal against the top of the muffle furnace 5 under the action of the elastic insulation tube group 6. In this state, the feeding pipe 2 and the guide pipe 3 are completely isolated from the external environment by the elastic insulation tube group 6 and the insulation sealing brick group 7, thereby achieving a very good sealing and insulation effect. Compared with the traditional sealing structure, multiple layers of thermal insulation cotton are manually placed between the muffle furnace 5 and the feeding device 1. Since the operator operates at high temperature, there are inevitably misalignments and gaps between the thermal insulation cotton layers. Although there will be improvements after compression, it is often difficult to achieve an ideal sealing effect. Moreover, since it is a manual operation, the entire operation process is complicated and time-consuming, and the labor intensity of the workers is high. Compared with the traditional structure, the utility model device is simple to operate, short in operation time, and has a good sealing and thermal insulation effect.

[0040] When the insertion depth of the lower feed pipe 2 is adjusted, in the production process, the flow state of the glass liquid is sometimes changed by adjusting the depth of the lower feed pipe 2 inserted into the guide pipe 3 to obtain a good quality effect. Fig.12 As shown, when the depth of the lower feeding pipe 2 inserted into the guide tube 3 is adjusted from 250mm to 220mm, at this time, due to the elastic top-pushing effect of the thermal insulation sealing brick group 7 on the top of the muffle furnace 5 under the action of the elastic thermal insulation tube group 6, the lower end of the thermal insulation sealing brick group 7 will maintain a seal against the top of the muffle furnace 5, so that the lower feeding pipe 2 and the guide tube 3 are completely isolated from the external environment, maintaining a good sealing and thermal insulation effect. Compared with the traditional sealing structure, multiple layers of thermal insulation cotton are manually placed between the muffle furnace 5 and the lower feeding device 1. When the muffle furnace 5 is adjusted to rise or fall, the multiple layers of thermal insulation cotton may not have enough compression space or rebound distance, and the sealing and thermal insulation effect cannot be maintained. Therefore, when adjusting the insertion depth of the lower feeding pipe 2, all the multiple layers of thermal insulation cotton need to be removed and the corresponding number of thermal insulation cottons need to be replaced. During this operation, some parts are subjected to a short-term cooling shock, which may affect their performance and life. The elastic insulation cylinder group 6 in the utility model can follow the muffle furnace 5 to rise and fall accordingly when the muffle furnace 5 rises and falls, and ensures that the insulation sealing brick group 7 and the muffle furnace 5 maintain a sealed and heat-insulating effect without the need for replacement operations, which not only saves manpower and material resources, but also has a good insulation effect.

[0041] Alternatively, if Figure 2As shown, the elastic heat-insulating tube group includes an upper base plate 61 sealed and fixed to the bottom end of the feeding device 1, a lower base plate 62 spaced apart from the upper base plate 61, an elastic member 63 for supplying a telescopic elastic force, and a heat-insulating ring group for sealing and heat-insulating the feeding tube 2 and deforming under force; in this optional scheme, the upper base plate 61 and the lower base plate 62 are both made of high-temperature resistant stainless steel, and can be square or circular, or other polygonal structures, and the upper base plate 61 and the lower base plate 62 are both provided with through holes set through the plate surface for the feeding tube 2 to pass through. The elastic member 63 is connected between the upper base plate 61 and the lower base plate 62, and is used to supply a telescopic elastic force along the axial direction. The heat-insulating ring group is in the shape of a hollow cylinder, and the sealing sleeve is mounted on the outer circle of the feeding tube 2, and the upper end of the heat-insulating ring group is sealed and connected to the upper base plate 61, and the opposite lower end is sealed and connected to the lower base plate 62.

[0042] During normal operation, the circumferentially sealed insulation ring assembly is arranged on the outer circle of the discharge pipe 2, and the upper and lower ends of the insulation ring assembly are respectively sealed and connected to the upper bottom plate 61 and the lower bottom plate 62, so as to seal the upper and lower openings of the insulation ring assembly, thereby realizing the sealing and insulation of the outer periphery of the discharge pipe 2, and through the elastic member 63, the elastic insulation tube group 6 also has an axial compressive elastic force, and then through the compressive elastic force, the insulation sealing brick group 7 at the bottom end is elastically pressed against the insulation sealing brick group 7, so that the insulation sealing brick group 7 always keeps the seal against the top of the muffle furnace 5, thereby realizing the sealing and insulation of the discharge pipe 2 and the extended end of the guide pipe 3.

[0043] When the angle of the muffle furnace 5 is adjusted, during the debugging and production process, the muffle furnace 5 may sometimes be tilted at a certain angle under the action of the lifting mechanism according to the process requirements, such as Fig.11 As shown in the figure, it is a schematic diagram of the working state of the muffle furnace when it is tilted at an angle of 5. Fig.11 As shown, the muffle furnace 5 is tilted at a certain angle, and the overflow trough 4 and the guide pipe 3 are also tilted accordingly. The feed pipe 2 extends into the guide pipe 3 for a certain distance, and the high-temperature glass liquid flows from the feed device 1 through the feed pipe 2, enters the guide pipe 3, and then flows into the overflow trough 4 from the guide pipe 3. After overflowing, it gradually covers both sides of the entire overflow trough 4. In the scheme of the utility model, since the lower end of the elastic insulation tube group 6 elastically presses against the top of the muffle furnace 5, and its inner insulation ring group can be deformed under force, the shape of the elastic insulation tube group 6 can be deformed accordingly with the change of the angle of the muffle furnace 5, and in the process of changing the inclination angle of the muffle furnace 5, due to the elastic pressing effect of the elastic insulation tube group 6 on the insulation sealing brick group 7, the lower end of the insulation sealing brick group 7 will keep the seal against the top of the muffle furnace 5, so that the feed pipe 2 and the guide pipe 3 are completely isolated from the external environment, maintaining a good sealing and insulation effect.

[0044] Compared with the traditional sealing structure, multiple layers of thermal insulation cotton are manually placed between the muffle furnace 5 and the feeding device 1. When the muffle furnace 5 generates an angle, the distance between the muffle furnace 5 and the feeding device 1 decreases on one side and increases on the other side. The multiple layers of thermal insulation cotton are compressed on one side, and a gap may be generated on the other side as the distance increases. At this time, people need to manually plug the gap with thermal insulation cotton. Since the angle of the muffle furnace 5 changes with the process, the operator needs to monitor the status of the thermal insulation cotton at any time during the adjustment process. Once there is a gap, operation is required. The operation process is complicated, time-consuming and labor-intensive. In addition, when the process at this stage After completion, the muffle furnace 5 needs to be straightened and the angle adjusted to zero degrees. At this time, the traditional sealing structure has one side of the thermal insulation cotton compressed and may not be able to rebound, and the other side is stuffed with new thermal insulation cotton. The entire thermal insulation cotton layer cannot maintain the sealing and thermal insulation effect and must be completely removed and replaced with new thermal insulation cotton. Re-sealing and thermal insulation are consuming a lot of manpower and material costs. In the process of removing the old thermal insulation cotton and replacing it with the new thermal insulation cotton, the structure here including the feed pipe 2, the guide pipe 3 and the overflow trough 4 will be exposed to the air environment for a short time, causing rapid cooling, and the components may be damaged to a certain extent, affecting their service life. The elastic thermal insulation tube group 6 in the utility model undergoes corresponding deformation of its external structure during the process of adjusting the angle of the muffle furnace 5, and can keep the thermal insulation sealing brick group 7 in a sealed state with the top of the muffle furnace 5 at all times, thereby achieving a good sealing effect; more importantly, when the muffle furnace 5 is returned to the center and the angle is adjusted to zero degrees, the elastic thermal insulation tube group 6 will also recover accordingly, and there is no need to replace a new elastic thermal insulation tube group 6, thereby greatly reducing the consumption of manpower and material resources, reducing operational risks, and effectively avoiding the problem of rapid cooling of the overflow tank due to failure to perform sealing and thermal insulation in time, thereby causing serious damage and reducing the service life.

[0045] In this option, if Figure 2 As shown, the elastic member 63 includes a plurality of pressure springs, which are evenly spaced along the circumference of the feed tube 2, and the upper and lower ends of each pressure spring are detachably connected to the upper bottom plate 61 and the lower bottom plate 62, respectively, so as to facilitate the quick replacement of the old pressure spring, or the replacement of the new type of spring to achieve different elastic force requirements. Alternatively, the elastic member 63 is a pressure spring, which is sleeved on the outer circle of the feed tube 2, and the upper and lower ends are detachably connected to the upper bottom plate 61 and the lower bottom plate 62, respectively. This structural setting makes the circumferential force of the feed tube 2 balanced, and thus more stably performs elastic top pressure on the thermal insulation sealing brick group 7, and also facilitates the quick replacement of the old pressure spring, or the replacement of the new type of spring to achieve different elastic force requirements.

[0046] In this option, if Figure 2As shown, the insulation ring assembly includes an insulation ring 64 made of flexible material and used for heat insulation, an upper pressure plate 65 and a lower pressure plate 66 for pressing the insulation ring 64, and multiple groups of fasteners for connecting and fixing. The insulation ring 64 is hollow cylindrical and is sleeved on the outer circle of the discharge pipe 2. The upper end of the insulation ring 64 is also sealed and pressed on the lower surface of the upper base plate 61 through the upper pressure plate 65, and is fixed to the upper base plate 61 through fasteners. The lower end of the insulation ring 64 is also sealed and pressed on the upper surface of the lower base plate 62 through the lower pressure plate 66, and is fixed to the lower base plate 62 through fasteners. Further, as Figure 3-4 As shown, the structure of the heat preservation ring 64 is not limited to Figure 3 The annular hollow structure shown in Figure 4 The square hollow structure shown in , or other polygonal hollow structures.

[0047] When adjusting the installation angle of the muffle furnace, Fig.11 As shown, the annular heat preservation ring 64 is tightly attached to the upper base plate 61 at the upper end by screws and the upper pressure plate 65, and is tightly attached to the lower base plate 62 at the lower end by screws and the lower pressure plate 66. Under the pressure of the elastic member 63, the lower base plate 62 is tightly attached to the heat preservation sealing brick group 7 below, so that the feed pipe 2 and the guide pipe 3 are completely isolated from the external environment, maintaining a good sealing and heat preservation effect. Since the elastic member 63 is compressible, the heat preservation ring 64 is also deformable, and they can be deformed accordingly with the change of the angle of the muffle furnace 5, and in the process of changing the angle, due to the pressure of the elastic member 63, the lower base plate 62 always tightly fits the heat preservation sealing brick group, and can always maintain a good sealing and heat preservation effect.

[0048] When adjusting the insertion depth of the feed pipe 2, Fig.12 As shown, the depth of the feed pipe 2 inserted into the guide pipe 3 is adjusted from 250mm to 220mm. At this time, the muffle furnace 5 is lowered by 30mm by operating the lifting mechanism, and the elastic member 63 is opened by 30mm. However, under the action of the spring tension, the lower bottom plate 62 will always be tightly attached to the insulation sealing brick group. Since the lower end of the insulation ring 64 is fixed to the lower bottom plate 62 through the lower pressure plate 66, the insulation ring 64 is also stretched during the lowering process of the muffle furnace 5, and the seal is always maintained.

[0049] Furthermore, if Figure 5-6As shown, the insulation ring 64 includes an inner ring 641 and an outer ring 643 made of high-temperature resistant cloth, and a heat-insulating layer 642 made of high-temperature resistant fiber blanket or fiber cotton; the outer ring 643 is sleeved outside the inner ring 641; and the heat-insulating layer 642 is filled between the inner ring 641 and the outer ring 643. Among them, the high-temperature resistant cloth can at least work for a long time in an environment of 1200°C, and can be a high-silicon cloth or other high-temperature resistant materials; the heat-insulating layer 642 not only has a very low thermal conductivity, its thermal conductivity is less than 0.3W / m·K in an environment of 1000°C, but also can work for a long time at 1200°C, and its material can be a high-purity ceramic fiber blanket or ceramic fiber cotton, etc. Figure 3 As shown, the outer shape of the heat preservation ring 64 in the straightened state is shown. Since the entire structure is made of blanket cotton and cloth, the heat preservation ring 64 can be compressed, bent, and even folded in height, thereby achieving the effect of its flexible setting.

[0050] Preferably, the inner ring 641, the heat insulating layer 642 and the outer ring 643 are sewn together by high temperature resistant thread. The thickness of the heat insulating layer 642 is ≥15 mm, and the number of the heat insulating layer 642 is multiple layers, and the materials of the multiple heat insulating layers 642 are the same or different to ensure good heat preservation and heat insulation effect.

[0051] In this option, if Figure 7 As shown, the insulation sealing brick group 7 includes an insulation brick 71 used to be supported on the top of the muffle furnace 5 and sleeved on the outside of the top of the guide tube 3, a sealing brick 72 stacked on the insulation brick 71 and sleeved on the discharge pipe 2, and a sealing cotton 73 laid on the sealing brick 72 and sleeved on the discharge pipe 2. The sealing cotton 73 is used to seal against the lower end of the elastic insulation tube group, so that the insulation sealing brick group is sealed against the top of the muffle furnace 5 under the action of the elastic insulation tube group. When working, as Figure 7 As shown, the feed pipe 2 extends into the guide pipe 3, and the outer periphery of the feed pipe 2 is an insulation ring 64. The upper end of the insulation ring 64 is connected and sealed to the upper bottom plate 61, and the lower end of the insulation ring 64 is connected and sealed to the lower bottom plate 62. The lower bottom plate 62 is tightly attached to the sealing cotton 73 through the action of the elastic member 63, thereby achieving complete isolation and sealing of the feed pipe 2 and the guide pipe 3 from the surrounding environment, achieving a very good insulation effect.

[0052] In the specific embodiment of this optional solution, the insulation brick 71 is made of a heat-resistant material with a low thermal conductivity, and has a hole in the middle to wrap the upper part of the flow guide pipe 3. The sealing brick 72 is made of a high-temperature resistant material, which can be mullite, corundum or other materials. The sealing cotton 73 is made of a heat-resistant material with a low thermal conductivity, and the thickness of the sealing cotton 73 is ≥5mm.

[0053] like Figure 8As shown, the first embodiment of the insulation brick 71 and the sealing brick 72, the insulation brick 71 and the sealing brick 72 are both integral bricks with a hole in the middle. The insulation brick 71 and the sealing brick 72 are a whole brick with a hole in the middle, and the middle hole can pass through the guide pipe 3 or the feed pipe 2. The advantage of this structure is that there is no joint seam, and there will be no air leakage from the joint seam due to poor jointing, and it has a better insulation effect.

[0054] like Fig. 9 As shown, in the second embodiment of the insulation brick 71 and the sealing brick 72, an opening for the feed pipe 2 or the flow guide pipe 3 to pass through is provided in the middle of the insulation brick 71 and the sealing brick 72. The insulation brick 71 includes two half insulation bricks 711 split in half along its opening, the inner side edge of each half insulation brick 711 is concave to form a semicircular opening, and the opposite outer side edge thereof is bent upward to form a first sealing edge 712. And / or, the sealing brick 72 includes two half sealing bricks 721 split in half along its through hole, the inner side edge of each half sealing brick 721 is concave to form a semicircular opening, and the opposite outer side edge thereof is bent downward to form a second sealing edge 722, and the first sealing edge 712 is used to seal the gap between the two half sealing bricks 721, and the second sealing edge 722 is used to seal the gap between the two half insulation bricks 711. During operation, when the two half insulation bricks 711 are spliced ​​together, a circular opening is formed in the middle, through which the guide pipe 3 can pass. At the same time, when the two half sealing bricks 721 are spliced ​​together, a circular opening is formed in the middle, through which the discharge pipe 2 can pass. When the two half insulation bricks 711 are not installed properly or deformed due to heat, causing the joint between them to open and produce a gap, the second sealing edge 722 of the two half sealing bricks 721 facing downward can still prevent the side air from entering. Similarly, when the two half insulation bricks 721 are not installed properly or deformed due to heat, causing a gap in the joint between them, the first sealing edge 712 of the two half insulation bricks 711 facing upward can also prevent the side air from entering. In another case, when the insulation bricks 71 and the sealing bricks 72 are deformed and warped due to heat, resulting in a gap in the plane between them, the first sealing edge 712 and the second sealing edge 722 on the side can still prevent the outside air from entering, so Fig. 9 The spliced ​​structure shown is not only easy to install, but also has very good sealing and heat preservation effects, especially it can avoid the situation where the heat preservation effect is reduced due to gaps between bricks.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A blanking and forming device for glass sheet production, It is characterized in that include: A material discharge device (1), a muffle furnace (5) provided with an overflow trough (4) and arranged at intervals below the material discharge device (1), a material discharge pipe (2) connected to the bottom end of the material discharge device (1), a flow guide pipe (3) connected to the overflow trough (4) and with the top end extending upwardly out of the muffle furnace (5), an elastic heat-insulating cylinder group (6) and a heat-insulating sealing brick group (7); The lower end of the feed pipe (2) is inserted downwardly into the top end of the flow guide pipe (3), and the elastic heat-insulating cylinder group (6) and the heat-insulating sealing brick group (7) are sequentially and sealedly sleeved on the feed pipe (2) and the top end of the flow guide pipe (3) along the axial direction; The elastic heat-insulating cylinder group (6) is axially telescopically arranged, with its upper end sealingly connected to the unloading device (1), and its opposite lower end elastically sealingly abutting against the heat-insulating sealing brick group (7) so as to make the heat-insulating sealing brick group (7) seal against the top of the muffle furnace (5).

2. The blanking and forming device for glass sheet production according to claim 1, It is characterized in that The elastic heat-insulating tube group comprises an upper bottom plate (61) sealed and fixed to the bottom end of the feeding device (1), a lower bottom plate (62) spaced apart from the upper bottom plate (61), an elastic member (63) for supplying a telescopic elastic force, and a heat-insulating ring group for sealing and heat-insulating the feeding tube (2) and deforming under force; The elastic member (63) is connected between the upper base plate (61) and the lower base plate (62); The heat-insulating ring assembly is in the shape of a hollow cylinder and is sealingly sleeved on the outer circle of the feed tube (2). The upper end of the heat-insulating ring assembly is sealingly connected to the upper bottom plate (61), and the opposite lower end is sealingly connected to the lower bottom plate (62).

3. The blanking and forming device for glass sheet production according to claim 2, It is characterized in that The elastic member (63) comprises a plurality of pressure springs, which are evenly spaced along the circumference of the feed tube (2), and the upper and lower ends of each pressure spring are detachably connected to the upper base plate (61) and the lower base plate (62); or The elastic member (63) is a pressure spring which is sleeved on the outer circle of the feed tube (2), and the upper and lower ends of the pressure spring are respectively detachably connected to the upper bottom plate (61) and the lower bottom plate (62).

4. The blanking and forming device for glass sheet production according to claim 2, It is characterized in that The heat preservation ring assembly comprises a heat preservation ring (64) made of a flexible material and used for heat preservation and heat insulation, an upper pressing plate (65) and a lower pressing plate (66) used for pressing the heat preservation ring (64), and a plurality of sets of fasteners for connecting and fixing. The heat preservation ring (64) is in the shape of a hollow cylinder and is sleeved on the outer circle of the feeding tube (2). The upper end of the heat preservation ring (64) is sealed and pressed against the lower surface of the upper base plate (61) through the upper pressing plate (65) and is fixed to the upper base plate (61) through fasteners. The lower end of the heat preservation ring (64) is also sealed and pressed against the upper surface of the lower base plate (62) through a lower pressing plate (66), and is fixed to the lower base plate (62) through a fastener.

5. The blanking and forming device for glass sheet production according to claim 4, It is characterized in that The heat-insulating ring (64) comprises an inner ring (641) and an outer ring (643) made of high-temperature-resistant cloth, and a heat-insulating layer (642) made of high-temperature-resistant fiber blanket or fiber cotton; The outer ring (643) is sleeved outside the inner ring (641); The heat insulation layer (642) is filled between the inner ring (641) and the outer ring (643).

6. The blanking and forming device for glass sheet production according to claim 5, It is characterized in that The inner ring (641), the heat insulating layer (642) and the outer ring (643) are also sewn into a whole by high temperature resistant silk thread; The thickness of the heat insulation layer (642) is ≥15 mm, and the number of the heat insulation layer (642) is multiple layers.

7. The blanking and forming device for glass sheet production according to claim 1, It is characterized in that The heat-insulating sealing brick set comprises a heat-insulating brick (71) supported on the top of the muffle furnace (5) and sleeved on the outside of the top of the flow guide pipe (3), a sealing brick (72) stacked on the heat-insulating brick (71) and sleeved on the discharge pipe (2), and a sealing cotton (73) laid on the sealing brick (72) and sleeved on the discharge pipe (2); The sealing cotton (73) is used to seal against the lower end of the elastic heat-insulating tube group, so that the heat-insulating sealing brick group is sealed against the top of the muffle furnace (5) under the action of the elastic heat-insulating tube group.

8. The blanking and forming device for glass sheet production according to claim 7, It is characterized in that The thickness of the sealing cotton (73) is ≥5mm.

9. The blanking and forming device for glass sheet production according to claim 7, It is characterized in that The heat-insulating brick (71) and the sealing brick (72) are both integral bricks with a hole in the middle.

10. The blanking and forming device for producing glass sheets according to claim 7, It is characterized in that An opening for passing a feed pipe (2) or a flow guide pipe (3) is provided in the middle of the insulation brick (71) and the sealing brick (72); The insulation brick (71) comprises two half insulation bricks (711) which are split in half along the opening, the inner side edge of each half insulation brick (711) is concave to form a semicircular opening, and the opposite outer side edge is bent upward to form a first sealing edge (712); and / or The sealing brick (72) comprises two half-sealing bricks (721) which are split in half along the through hole thereof. The inner side edge of each half-sealing brick (721) is concave to form a semicircular opening, and the outer side edge thereof is bent downward to form a second sealing edge (722). The first sealing edge (712) is used to seal the gap between the two half-sealing bricks (721), and the second sealing edge (722) is used to seal the gap between the two half-insulation bricks (711).

Images