Upward extrusion growth apparatus

Abstract

The application relates to an upward extrusion type growth device, which comprises a main furnace chamber, a growth pipe and a pressure adjusting mechanism. The main furnace chamber is provided with a container for placing materials to be treated and a first heating mechanism for heating the container so that the materials in the container are melted. The feeding end of the growth pipe penetrates into the container in the main furnace chamber, and the discharging end of the growth pipe is located outside the main furnace chamber. The pressure adjusting mechanism is used to make the pressure in the container greater than the pressure at the discharging end of the growth pipe. In use, the materials are placed in the container, and the first heating mechanism heats the container so that the materials in the container are melted. Under the action of the pressure adjusting mechanism, the pressure in the container is greater than the pressure at the discharging end of the growth pipe, so that the molten materials in the container are discharged outward through the growth pipe under the action of the pressure difference. After the molten materials are discharged and cooled, the required products can be obtained. Thus, the products can be produced in a variety and a small amount.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of material processing, in particular to an up-extrusion type growth device. BACKGROUND

[0002] With the rapid development of glass, people have higher requirements for the function and performance of glass, and special glass has appeared in life. Special glass refers to glass doped with special components inside the glass according to actual needs, so as to realize special functions or meet certain performance, such as glass with light transmission, heat insulation, sound insulation, wear resistance, weather resistance and other properties, and some have heat preservation, heat absorption, radiation resistance and other characteristics. Taking microcrystalline glass as an example, the microcrystalline glass manufacturing process can also be divided into calendering method, pressing method, floating method and casting method, etc.

[0003] For the floating process, the forming process of microcrystalline glass is completed in a tin bath with protective gas. Specifically, after melting treatment of sodium salt, calcium salt and other glass materials, the molten glass material is introduced into the tin bath. The molten glass material continuously flows from the pool kiln and floats on the surface of the tin liquid with relatively high density. Under the action of gravity and surface tension, the glass liquid spreads, flattens, forms an upper and lower surface, hardens, cools and is introduced onto the transition roller table. The rollers of the roller table rotate to pull the glass strip out of the tin bath into the annealing kiln, and after annealing and cutting, the glass product is obtained.

[0004] However, the investment scale of the glass in the related art is large, the energy consumption is large, once the production line is started, a large loss needs to be borne for stopping the line, formula switching and intermittent production cannot be carried out, so it cannot meet the production of a variety of and small amount of special glass. SUMMARY

[0005] Therefore, it is necessary to overcome the defects of the prior art and provide an up-extrusion type growth device which can meet the production of a variety of and small amount of special glass.

[0006] An up-extrusion type growth device, comprising:

[0007] a main furnace chamber provided with a container for placing material to be processed and a first heating mechanism for heating the container so that the material inside the container is melted;

[0008] a growth tube, a feeding end of the growth tube penetrating into the container inside the main furnace chamber, and a discharging end of the growth tube being located outside the main furnace chamber; and

[0009] a pressure adjusting mechanism for making the pressure inside the container greater than the pressure at the discharging end of the growth tube.

[0010] In one of the embodiments, the up-extrusion growth device further comprises a cooling mechanism; the cooling mechanism is arranged outside the main furnace chamber, and is used for cooling the growth tube extending outside the main furnace chamber.

[0011] In one of the embodiments, the up-extrusion growth device further comprises a second heating mechanism; the second heating mechanism is arranged outside the main furnace chamber, and is used for heating the growth tube extending outside the main furnace chamber.

[0012] In one of the embodiments, the main furnace chamber is provided with a feeding port, which is used for connecting with a material preparation mechanism capable of providing the material.

[0013] In one of the embodiments, the up-extrusion growth device further comprises a sub-furnace chamber, which is connected to the top of the main furnace chamber; the discharge end of the growth tube extends into the interior of the sub-furnace chamber.

[0014] In one of the embodiments, the pressure adjusting mechanism comprises a pressurizing mechanism, which is used for increasing the pressure inside the main furnace chamber; and / or, the pressure adjusting mechanism comprises a negative pressure mechanism, which is used for reducing the pressure inside the sub-furnace chamber.

[0015] In one of the embodiments, the up-extrusion growth device further comprises a first lifting mechanism, which is connected with the growth tube, and is used for driving the growth tube to perform lifting movement.

[0016] In one of the embodiments, the up-extrusion growth device further comprises a shearing mechanism, which is capable of shearing the material at the feeding end of the growth tube.

[0017] In one of the embodiments, the up-extrusion growth device further comprises a second lifting mechanism and a clamping jaw; the second lifting mechanism is connected with the clamping jaw, the clamping jaw extends into the interior of the growth tube through the discharge end of the growth tube, and the second lifting mechanism is used for driving the clamping jaw to move along the length direction of the growth tube inside the growth tube.

[0018] In one of the embodiments, the second lifting mechanism is further capable of driving the clamping jaw to rotate.

[0019] In one of the embodiments, the main furnace chamber is provided with an air extraction system, which is used for extracting and discharging the exhaust gas generated in the material melting process from the interior of the main furnace chamber.

[0020] In one of the embodiments, the up-drawing growth device further comprises a third lifting mechanism arranged on the main furnace chamber, the third lifting mechanism being connected with the container, and the third lifting mechanism is used to drive the lifting movement of the container.

[0021] In one of the embodiments, the up-drawing growth device is used for glass growth.

[0022] In use, the material is placed in the container, and the first heating mechanism heats the container to melt the material in the container. Under the action of the pressure adjusting mechanism, the pressure in the container is greater than the pressure at the outlet end of the growth tube, so that the molten material in the container is discharged outward through the growth tube under the action of the pressure difference. After the molten material is discharged and cooled, the required product can be obtained. In this way, the volume of the container can be flexibly adjusted and controlled according to actual needs. When the volume of the container is reduced, it is suitable for small-batch production of materials, and the energy consumption is low, and the production cost is relatively low. The formula can be switched and intermittent production can be carried out according to actual needs, so that a variety of and small amount of product production can be met. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structural diagram of the up-drawing growth device of the first embodiment of the present application.

[0024] Figure 2 It is a working state schematic diagram of the up-drawing growth device of the second embodiment of the present application.

[0025] Figure 3 It is another working state schematic diagram of the up-drawing growth device of the second embodiment of the present application.

[0026] Figure 4 It is still another working state schematic diagram of the up-drawing growth device of the second embodiment of the present application.

[0027] Figure 5 It is still another working state schematic diagram of the up-drawing growth device of the second embodiment of the present application.

[0028] Figure 6 It is a temperature change curve diagram with working time when the material of an embodiment of the present application is microcrystalline glass.

[0029] 10, main furnace chamber; 11, container; 111, carbon-carbon crucible; 112, growth crucible; 12, first heating mechanism; 20, growth tube; 30, pressure adjusting mechanism; 31, pressurizing mechanism; 32, negative pressure mechanism; 41, material; 42, rod; 421, sharp; 50, cooling mechanism; 60, second heating mechanism; 61, channel; 70, sub-furnace chamber; 80, shearing mechanism; 91, second lifting mechanism; 911, connecting shaft; 912, clamping jaw; 93, sealing ring; 94, heat-insulating cover; 95, third lifting mechanism; 96, optical sensor. DETAILED DESCRIPTION

[0030] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways beyond the specific embodiments described and claimed herein, and it is understood that it can have applicable scope that is wider than that which is explicitly described herein. Moreover, the present application can take many different forms than the specific embodiments described and claimed herein and it is therefore understood that it is not intended to limit the present application to the particular embodiments described and claimed herein.

[0031] Reference Figure 1 , Figure 1 A structure diagram of an up-drawing growth apparatus according to a first embodiment of the present application is shown. The up-drawing growth apparatus according to an embodiment of the present application includes a main furnace chamber 10, a growth tube 20 and a pressure adjusting mechanism 30. The main furnace chamber 10 is provided with a container 11 and a first heating mechanism 12. The container 11 is used to place a material 41 to be processed. The first heating mechanism 12 is used to heat the container 11 so that the material 41 inside the container 11 is melted. The growth tube 20 has a feeding end penetrating into the container 11 through the main furnace chamber 10 and a discharging end outside the main furnace chamber 10. The pressure adjusting mechanism 30 is used to make the pressure inside the container 11 greater than the pressure at the discharging end of the growth tube 20.

[0032] It should be noted that the material 41 to be processed in the present embodiment includes but is not limited to glass, especially special glass, such as, for example, microcrystalline glass. In addition, the material 41 to be processed can also be other various materials, such as, for example, ceramic, crystal, metal, plastic and resin. In the present embodiment, the material 41 to be processed is taken as an example of microcrystalline glass, but it is not limited thereto.

[0033] In some embodiments, the growth tube 20 includes but is not limited to any one or a combination of quartz, graphite, corundum (Al2O3), fused cast brick (also known as fused cast zirconia corundum brick, abbreviated as AZS), platinum and glassy carbon.

[0034] Optionally, a release agent is coated on the inner wall of the growth tube 20. The release agent includes boron carbide or graphite coating, etc. In this way, the product can be easily separated from the production tube after molding, preventing mutual adhesion.

[0035] In use, the material 41 is placed in the container 11, and the first heating mechanism 12 heats the container 11 to melt the material 41 in the container 11. Under the action of the pressure adjusting mechanism 30, the pressure in the container 11 is greater than the pressure at the discharge end of the growth tube 20, so that the molten material 41 in the container 11 is discharged outward through the growth tube 20 under the action of the pressure difference. The molten material 41 is discharged and cooled to obtain the desired product. In this way, the volume of the container can be flexibly adjusted and controlled according to actual needs. When the volume of the container is reduced, it is suitable for small-batch production, has low energy consumption and low production cost, and can switch formulas and produce intermittently according to actual needs, thereby meeting the production of a variety of small quantities of products.

[0036] The first heating mechanism 12 can include, but is not limited to, an electric heating rod, an electric heating plate, an electric heating sheet, a resistance wire, a burner, electromagnetic heating, infrared heating, or chemical reaction heating, etc. The specific selection can be made according to actual needs, as long as the container 11 can be heated to increase the temperature of the container 11.

[0037] The first heating mechanism 12 can be located on any side of the container 11 and abut the outer wall of the container 11 to transfer heat to the container 11, or can be arranged in the circumferential direction of the container 11 and abut the outer wall of the container 11 to transfer heat to the container 11, or can have an air gap with the outer wall of the container 11 and adopt a heat radiation mode to transfer heat to the container 11, so that the container 11 is heated to a preset temperature.

[0038] Specifically, the first heating mechanism 12 can melt the microcrystalline glass in the container 11 into a liquid state to realize microcrystalline glass melting homogenization. After the microcrystalline glass is melted into a liquid state, the working power of the first heating mechanism 12 is controlled to reduce the temperature of the container 11, thereby preliminarily cooling the liquid microcrystalline glass, which is beneficial to subsequent secondary cooling and molding in the growth tube 20 outside the main furnace chamber 10.

[0039] After the molten material 41 is discharged outward through the growth tube 20, it can be cooled and gradually molded at room temperature, or a cooling mechanism 50 can be configured, which can rapidly cool and mold the molten material 41 under the cooling action of the cooling mechanism 50, thereby improving the production efficiency.

[0040] Please refer to Figure 1In one embodiment, the up-extrusion growth device further comprises a cooling mechanism 50. The cooling mechanism 50 is arranged outside the main furnace chamber 10, and is used to cool the growth tube 20 which extends outside the main furnace chamber 10.

[0041] Optionally, the cooling mechanism 50 can either be in the form of air cooling, for example, using a fan to blow air to the growth tube 20 to lower the temperature of the growth tube 20, or in the form of physical contact cooling, for example, using a circulating water cooling tube or a semiconductor cooling element to contact the outer wall of the growth tube 20 to lower the temperature of the growth tube 20.

[0042] When the material 41 is microcrystalline glass, the molten material 41 is cooled by the cooling mechanism 50 during the process of being discharged out of the growth tube 20, so that the material 41 gradually changes from liquid to solid, thereby forming a glass product in the form of a rod 42.

[0043] The rod 42 is adapted to the shape of the growth tube 20, and the shape of the growth tube 20 can be adjusted according to the shape of the glass product required. For example, when the growth tube 20 has a circular cross-section, the rod 42 formed by the growth tube 20 is a cylindrical rod; when the growth tube 20 has a rectangular cross-section, the glass product formed by the growth tube 20 is a rectangular rod 42. The cross-sectional shape of the growth tube 20 can also be other shapes, which are not limited herein.

[0044] It should be noted that after the glass product in the required shape is formed by the growth tube 20, various post-processing such as grinding, carving, and printing can be performed on the glass product, thereby obtaining the required glass product.

[0045] Please refer to Figure 1 In one embodiment, the up-extrusion growth device further comprises a second heating mechanism 60. The second heating mechanism 60 is arranged outside the main furnace chamber 10, and is used to heat the growth tube 20 which extends outside the main furnace chamber 10. In this way, after the cooling mechanism 50 cools the growth tube 20, the microcrystalline glass is cooled and formed, and then the second heating mechanism 60 can be used to heat the growth tube 20, so that the microcrystalline glass is nucleated and crystallized. Then, the cooling mechanism 50 can be used to cool the growth tube 20 to obtain the required glass product.

[0046] It is found through a large number of experiments and researches that after the second heating mechanism 60 is used to heat the growth tube 20, the temperature of the microcrystalline glass after the first cooling and forming is increased, and the hardness of the glass product after the second cooling and forming is greatly improved.

[0047] It should be noted that in the heating process of the microcrystalline glass after once cooling forming, the specific temperature rise of the microcrystalline glass and the temperature rise time can be flexibly adjusted and set according to the needs of the specific glass type, as long as the nucleation and crystallization are met, and no specific limitation is made here.

[0048] On the basis of the foregoing embodiment, in order to make the working principle of the up-extrusion growth device for growing microcrystalline glass in the embodiment clearer, the specific combination of the glass up-extrusion growth device shown in Figure 1 and the temperature-time change relationship diagram of the microcrystalline glass of an embodiment are introduced: Figure 6

[0049] In the 0-t1 stage, the microcrystalline glass is placed in the container 11, and the first heating mechanism 12 heats the container 11, so that the temperature of the microcrystalline glass in the container 11 rises and gradually melts, realizing the homogenization of the microcrystalline glass melting;

[0050] In the t1-t2 stage, for example, the first heating mechanism 12 is controlled to reduce the working power, so that the temperature of the microcrystalline glass in the container 11 is reduced, and the liquid microcrystalline glass is preliminarily cooled;

[0051] The t2 moment corresponds to the moment when the liquid microcrystalline glass is discharged outward through the growth pipe 20.

[0052] In the t2-t3 stage, the cooling mechanism 50 cools the growth pipe 20, so that the material 41 gradually changes from liquid to solid, and the microcrystalline glass is once cooled and formed;

[0053] In the t3-t4 stage, the second heating mechanism 60 heats the growth pipe 20, so that the microcrystalline glass is nucleated;

[0054] In the t4-t5 stage, the temperature of the microcrystalline glass is maintained unchanged, so that the microcrystalline glass is crystallized;

[0055] After t5, the growth pipe 20 is cooled by the cooling mechanism 50 to obtain the required glass product.

[0056] As can be seen, the up-extrusion growth device in the embodiment can complete all steps of melting, clarifying, homogenizing, forming, nucleating and crystallizing of special glass, especially microcrystalline glass, and the device occupies small area.

[0057] ​The volume of the container 11 in the embodiment can be flexibly adjusted and set according to actual needs. The volume of the container 11 satisfies the weight of the material installed, including but not limited to 0.5 Kg, 1 Kg, 5 Kg, 10 Kg, 50 Kg, 100 Kg, 200 Kg, 500 Kg or 1000 Kg, etc. When a small-volume container 11 is selected, for example, the weight of the material that can be installed in the container 11 is less than or equal to 100 Kg, even less than or equal to 10 Kg, and even about 1 Kg, which is suitable for small-batch material production, has low energy consumption and low production cost, can switch formulas and produce intermittently according to actual needs, and thus can realize the production of various, small and low-cost special glasses.

[0058] In some embodiments, the container 11 is specifically, for example, a crucible. The crucible includes but is not limited to any one or a combination of quartz crucible, corundum (Al2O3), fused brick, molybdenum, tungsten, platinum, glass carbon and fireclay crucible, etc.

[0059] Specifically, the crucibles in the embodiment are, for example, two and are nested with each other. The crucible located outside is, for example, a carbon-carbon crucible 111, which plays a role of heat conduction and transmits heat to the crucible located inside, has a relatively long service life and does not need to be replaced frequently. The crucible located inside is a growth crucible 112, which is used to contain the material 41 to be processed and directly transmits heat to the material 41 to be processed to melt the material 41 and needs to be replaced frequently.

[0060] In some embodiments, the main furnace chamber 10 is provided with a feeding port. The feeding port is used to be connected with a material preparation mechanism capable of providing the material 41. The feeding port can be, for example, a continuous feeding port, which is used to continuously receive the material 41 provided by the material preparation mechanism. The material 41 is fed into the inside of the container 11 through the feeding port, is melted under the heating treatment of the container 11 and is continuously discharged outward through the growth pipe 20. Optionally, a switch valve is arranged at the feeding port. When the material 41 in the inside of the container 11 is insufficient, the switch valve is opened to feed the material 41 into the inside of the container 11 through the feeding port. When the material 41 in the inside of the container 11 reaches a preset amount, the switch valve is closed to ensure that the main furnace chamber 10 is in a closed state, so that the gas in the external environment cannot enter the inside of the main furnace chamber 10 to adversely affect the melting of the material 41 in the inside of the main furnace chamber 10. In addition, since the material 41 can be continuously supplemented into the inside of the main furnace chamber 10 through the feeding port, the material 41 in the inside of the container 11 is ensured to be sufficient. Then, the growth pipe 20 continuously discharges, and a shaped product of any length can be obtained. In addition, continuous feeding and melting can improve the production capacity and the service life of the crucible.

[0061] Please refer to Figure 1In one embodiment, the up-extrusion growth device further comprises a sub-chamber 70. The sub-chamber 70 is connected to the top of the main chamber 10. The discharge end of the growth tube 20 extends into the interior of the sub-chamber 70. Optionally, the cooling mechanism 50 is arranged in the interior of the sub-chamber 70, and the second heating mechanism 60 is arranged in the interior of the sub-chamber 70. In this way, the sub-chamber 70 protects the growth tube 20, the cooling mechanism 50 and the second heating mechanism 60, and provides an environment for the formation of the product, which is conducive to improving the processing quality of the product.

[0062] As some optional solutions, the up-extrusion growth device can also be provided without the sub-chamber 70, or the sub-chamber 70 is provided with a discharge port opposite to the port position of the discharge end of the growth tube 20. The formed product obtained by the growth of the growth tube 20 can be directly discharged outward through the discharge port, which can realize continuous discharge and the length of the formed product can be longer.

[0063] As some optional solutions, the main chamber 10 can be provided without the feeding port. When the material 41 in the container 11 is used up, the up-extrusion growth device can be stopped, and then the cover of the main chamber 10 is opened, the same kind of material 41 or other kinds of material 41 is added to the interior of the container 11, and the growth operation of the material 41 is continued.

[0064] Please refer to Figure 1 In one embodiment, the growth tube 20 is movably arranged in the main chamber 10 and the sub-chamber 70. The up-extrusion growth device further comprises a first lifting mechanism arranged on the sub-chamber 70, the first lifting mechanism is connected to the growth tube 20, and the first lifting mechanism is used to drive the growth tube 20 to move up and down. In this way, before the material 41 in the container 11 is heated and melted, the growth tube 20 is specifically located in the interior of the sub-chamber 70; after the material 41 in the container 11 is heated and melted, the first lifting mechanism drives the growth tube 20 to descend into the interior of the main chamber 10, and the feeding end of the growth tube 20 enters the interior of the container 11, so that the molten material 41 can gradually enter the interior of the growth tube 20 under the pressure of the pressure adjustment mechanism; when the material 41 is extruded into the growth tube 20 to a certain length, for example, to the discharge end, that is, the material 41 fills the entire growth tube 20, the first lifting mechanism drives the growth tube 20 to ascend into the interior of the sub-chamber 70, and the molten liquid in the container 11, which can simultaneously drive the material 41 in the growth tube 20 to enter the interior of the sub-chamber 70, so that the material 41 in the growth tube 20 can be better cooled and formed in the interior of the sub-chamber 70.

[0065] In some embodiments, the growth tube 20 is provided with a rotating function, which facilitates the demolding of the material 41. Specifically, the first lifting mechanism not only drives the growth tube 20 to perform lifting movement, but also drives the growth tube 20 to rotate around the central axis thereof, thereby realizing the rotating function of the growth tube 20.

[0066] In some embodiments, the first lifting mechanism includes, but is not limited to, a gear and rack mechanism, a motor lead screw mechanism, a pneumatic cylinder mechanism, or a cam mechanism, etc., as long as it can realize the lifting movement of the growth tube 20. In addition, in order to realize the rotation of the growth tube 20, the first lifting mechanism is integrated with a rotating motor, for example, which drives the growth tube 20 to rotate under the driving of the rotating motor.

[0067] Please refer to Figure 1 In one embodiment, the upward extrusion growth device further includes a shearing mechanism 80. The shearing mechanism 80 is arranged at the bottom of the auxiliary furnace chamber 70, and the shearing mechanism 80 can shear the material 41 at the feeding end of the growth tube 20.

[0068] Optionally, the shearing mechanism 80 includes, but is not limited to, scissors, cutting blades, or cutting plates, etc.

[0069] When the rod body 42 is extruded upward to a certain length, the growth tube 20 is lifted so that the entire growth tube 20 is inside the auxiliary furnace chamber 70, and the bottom end of the rod body 42 is sheared by the shearing mechanism 80. The sheared rod body 42 is inside the auxiliary furnace chamber 70 for post-processing.

[0070] Specifically, during the growth process, after the growth tube 20 and the material 41 inside it enter the auxiliary furnace chamber 70, the material 41 is shaped into a rod body 42 inside the growth tube 20. The top end of the rod body 42 enters the auxiliary furnace chamber 70 before the bottom end of the rod body 42, and the top end of the rod body 42 is cooled first and has a higher hardness. The bottom end of the rod body 42 enters the auxiliary furnace chamber 70 later and has a lower hardness, and the bottom end of the rod body 42 is separated from the material 41 inside the container 11 and has a sharp spike 421.

[0071] The bottom end of the rod body 42 is sheared in time by the shearing mechanism 80, so that the bottom end surface is more flat and beautiful. Moreover, the bottom end of the rod body 42 is separated from the container 11 and has not been sufficiently cooled, so it has a relatively low hardness and is easy to be cut off, and the operation is easy. In addition, the cut-off spike 421 can be returned to the container 11 for reuse.

[0072] Conversely, if the bottom end of the rod body 42 is not sheared by the shearing mechanism 80, the rod body 42 with the spike 421 flows into the post-processing step for processing. In the post-processing step, the spike 421 is usually directly broken off or cut off. Since the spike 421 is cooled and has high hardness, the rod body 42 is easily broken in the post-processing process, and the product quality is reduced.

[0073] Referring to Figures 2 to 5 In an embodiment, the upward extrusion growth device further comprises a second lifting mechanism 91 and a gripper 912. The second lifting mechanism 91 is arranged on the auxiliary furnace chamber 70, and the second lifting mechanism 91 is connected with the gripper 912. The gripper 912 extends into the inside of the growth tube 20 through the discharge end of the growth tube 20, and the second lifting mechanism 91 is used to drive the gripper 912 to move in the length direction of the growth tube 20 within the growth tube 20.

[0074] Specifically, the second lifting mechanism 91 comprises a connecting shaft 911. The connecting shaft 911 is connected with the gripper 912, and the connecting shaft 911 and the gripper 912 extend into the inside of the growth tube 20 and can reciprocate in the length direction of the growth tube 20 within the growth tube 20.

[0075] Referring to Figure 2 In the step of lowering the growth tube 20 into the inside of the main furnace chamber 10 by the first lifting mechanism, the second lifting mechanism 91 drives the gripper 912 to move to the inlet end of the growth tube 20. In addition, after the molten material 41 in the container 11 enters into the inside of the growth tube 20 through the inlet end by the pressure adjusting mechanism 30, the material 41 wraps the gripper 912, and based on the adhesion between the gripper 912 and the material 41, the gripper 912 clamps the top of the material 41. Referring to Figures 2 to 3 When the material 41 continues to move upward, the second lifting mechanism 91 drives the gripper 912 to move upward synchronously. When the gripper 912 moves upward, it can provide an upward driving force to the top end of the material 41, so as to drive the material 41 in the growth tube 20 to move upward smoothly until the growth tube 20 is filled.

[0076] In an embodiment, the second lifting mechanism 91 can also drive the gripper 912 to rotate. In this way, when the second lifting mechanism 91 drives the gripper 912 to rotate, the gripper 912 can synchronously drive the material 41 to rotate, so as to effectively prevent the material 41 from adhering to the inside of the growth tube 20, and thus better demoulding.

[0077] Specifically, the second lifting mechanism 91 drives the gripper 912 to rotate while driving the gripper 912 to move upward, so as to on the one hand drive the material 41 to enter into the inside of the growth tube 20, and on the other hand drive the material 41 to rotate, and better prevent the material 41 from adhering to the inner wall of the growth tube 20.

[0078] The specific structure of the second lifting mechanism 91 is similar to that of the first lifting mechanism, and thus no further description is provided herein.

[0079] The glass melting process involves chemical reactions, which release a large amount of gas, such as CO2, H2O, NO2, and SO2. Based on this, the main furnace chamber 10 is provided with an exhaust system. The exhaust system is used to exhaust and treat the waste gas generated during the melting of the material 41. Specifically, the exhaust system is a large-capacity exhaust system. During the glass melting process, the main furnace chamber 10 is subjected to large-capacity exhaust by the exhaust system, effectively removing the waste gas generated during melting.

[0080] During the upward extrusion of the material 41, the pressure adjusting mechanism 30 can form a pressure difference between the main furnace chamber 10 and the auxiliary furnace chamber 70, so that the pressure inside the container 11 is greater than the pressure at the discharge end of the growth tube 20. The size of the pressure difference can be flexibly adjusted and set according to actual needs, as long as the material 41 can be extruded upward through the growth tube 20 at a predetermined speed.

[0081] Specifically, the pressure difference can be that the auxiliary furnace chamber 70 is under negative pressure, or the main furnace chamber 10 is under positive pressure; or the auxiliary furnace chamber 70 is under negative pressure and the main furnace chamber 10 is under positive pressure; or the auxiliary furnace chamber 70 and the main furnace chamber 10 are both under positive pressure, and the pressure of the main furnace chamber 10 is greater than that of the auxiliary furnace chamber 70; or the auxiliary furnace chamber 70 and the main furnace chamber 10 are both under negative pressure, and the pressure of the main furnace chamber 10 is less than that of the auxiliary furnace chamber 70.

[0082] In one embodiment, the pressure adjusting mechanism 30 includes a pressurizing mechanism 31. The pressurizing mechanism 31 is used to increase the pressure inside the main furnace chamber 10. And / or, the pressure adjusting mechanism 30 includes a negative pressure mechanism 32, which is used to reduce the pressure inside the auxiliary furnace chamber 70.

[0083] Specifically, the pressurizing mechanism 31 provides inert gas to the inside of the main furnace chamber 10, which includes but is not limited to argon or nitrogen, and the like. In this way, not only can a pressure difference be formed to enable the material 41 to be extruded upward into the inside of the growth tube 20, but the material 41 can also be protected.

[0084] In order to make the pressure inside the main furnace chamber 10 higher than the pressure inside the auxiliary furnace chamber 70, a sealing ring 93 is arranged between the outer wall of the tube segment of the growth tube 20 extending into the auxiliary furnace chamber 70 and the inner wall of the auxiliary furnace chamber 70. Under the action of the sealing ring 93, the growth tube 20 is subjected to air pressure isolation between the auxiliary furnace chamber 70 and the main furnace chamber 10. The molten liquid is placed into the growth tube 20, and a pressure difference is applied to the liquid level inside and outside the growth tube 20, so that the molten liquid is extruded upward along the growth tube 20, while a glass rod chuck is used to assist upward pulling and rotary growth, and demolding is performed.

[0085] Specifically, the second heating mechanism 60 is formed with a channel 61, the growth tube 20 is arranged in the channel 61 and can move up and down along the channel 61. A sealing ring 93 is arranged inside the channel 61, and the sealing ring 93 is also arranged outside the growth tube 20, so as to realize the sealing between the growth tube 20 and the channel 61.

[0086] In addition, the negative pressure mechanism 32 is arranged at the top of the auxiliary furnace chamber 70, and is used for suction treatment on the top of the channel 61. In this way, the pressure inside the container 11 is greater than the pressure at the discharge end of the growth tube 20.

[0087] The number of the sealing ring 93 includes but is not limited to 1, 2 or more, which can be flexibly adjusted and arranged according to actual needs, and is not limited here.

[0088] The sealing ring 93 in the embodiment is two, one of which is fixedly arranged at the bottom end of the channel 61 and is arranged outside the growth tube 20, and the other is fixedly arranged at the top end of the growth tube 20 and is arranged inside the channel 61 and can move up and down with the growth tube 20.

[0089] In some embodiments, the top of the main furnace chamber 10 is also provided with a heat preservation cover 94. The heat preservation cover 94 is arranged above the container 11 and plays a heat preservation role. In addition, the growth tube 20 penetrates through the heat preservation cover 94 and extends downward into the inside of the container 11. Under the driving of the first lifting mechanism, the growth tube 20 can move up and down relative to the heat preservation cover 94.

[0090] In one embodiment, the upper extrusion type growth device also includes a third lifting mechanism 95. The third lifting mechanism 95 is arranged on the main furnace chamber 10, the third lifting mechanism 95 is connected with the container 11, and the third lifting mechanism 95 is used to drive the container 11 to move up and down. In this way, according to the height position of the feeding end of the growth tube 20, the third lifting mechanism 95 drives the container 11 to move up and down, so as to adaptively adjust the height position of the container 11 in the main furnace chamber 10, so that the material 41 in the container 11 can enter the inside of the growth tube 20 through the feeding end of the growth tube 20.

[0091] In some embodiments, the third lifting mechanism 95 also has a rotating function and can drive the container 11 to rotate, so that the material 41 in the container 11 is more uniform.

[0092] The specific structure of the third lifting mechanism 95 is similar to that of the first lifting mechanism, which will not be described here.

[0093] In some embodiments, the up-drawing growth device further comprises an optical sensor 96 and a controller. The optical sensor 96, the pressure adjusting mechanism 30, the first lifting mechanism, the first heating mechanism 12, the second lifting mechanism 91, the cooling mechanism 50, the second heating mechanism 60 and the third lifting mechanism 95 are electrically connected to the controller. The optical sensor 96 is used to detect the state of the material 41 inside the container 11, to determine whether the material 41 is heated to a molten state. In addition, the optical sensor 96 can also detect the height position of the material 41 inside the container 11. The controller can control the pressure adjusting mechanism 30, the first lifting mechanism, the first heating mechanism 12, the second lifting mechanism 91, the cooling mechanism 50, the second heating mechanism 60 and the third lifting mechanism 95 to work in coordination according to the state of the material 41 and the height position of the material 41 detected by the optical sensor 96, and the degree of automation is high.

[0094] The main furnace chamber 10 realizes the functions of heating, melting, homogenizing, clarifying and initial cooling of the glass-ceramic, and then the auxiliary furnace chamber 70 realizes the functions of lowering the growth tube 20, up-drawing cooling forming, raising the growth tube 20, tail cutting, nucleation, crystallization and cooling.

[0095] According to the thermal conductivity and thermal radiation properties of the glass, the thermal field, the heater, the furnace cavity space and the heat preservation system of the main furnace chamber 10 are flexibly adjusted and designed to realize the functions of uniform heating, melting and preliminary cooling of the glass.

[0096] According to the continuous variable problem of the glass viscosity, the first lifting mechanism is used to lower the growth tube 20, insert into the molten glass, pressurize the main furnace chamber 10 or apply negative pressure to the auxiliary furnace chamber 70, so that the pressure difference is generated at the interface inside and outside the quartz tube, and the power is provided for the up-drawing of the glass melt in the quartz tube.

[0097] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0098] In addition, the terms "first", "second", and the like, if any, are used herein for descriptive purposes only and should not be construed as indicating or implying relative importance or identifying the number of the indicated technical characteristics. Thus, a feature with the "first", "second" limitation can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "plurality" appears, the meaning of "plurality" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0099] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be interpreted broadly. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0100] In the present application, unless otherwise explicitly specified and limited, if the first feature is described as "on" or "under" the second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be the first feature directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature "below", "below" and "below" the second feature can be the first feature directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0101] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. If an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0102] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combination of the technical features does not exist Contradiction, it should be considered within the scope of the present application.

[0103] The above embodiments only express several implementation ways of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation to the patent scope of the application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An up-extrusion growth device for glass growth, characterized in that: The up-extrusion growth device comprises: a main furnace chamber, wherein the main furnace chamber is provided with a container and a first heating mechanism, the container is used to place materials to be processed, and the first heating mechanism is used to heat the container to melt the materials inside the container; a growth tube, wherein a feed end of the growth tube passes through the main furnace chamber and extends into the interior of the container, and a discharge end of the growth tube is located outside the main furnace chamber; a pressure adjustment mechanism, the pressure adjustment mechanism being configured to make the pressure inside the container greater than the pressure at the discharge end of the growth tube; and The second heating mechanism is arranged outside the main furnace chamber, and the second heating mechanism is used to heat the growth tube extending outside the main furnace chamber.

2. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth equipment further includes a cooling mechanism; the cooling mechanism is arranged outside the main furnace chamber, and the cooling mechanism is used to cool the growth tube extending outside the main furnace chamber.

3. The up-extrusion growth device according to claim 1, characterized in that: The main furnace chamber is provided with a feeding port, and the feeding port is used to be connected to a material preparation mechanism capable of providing the material.

4. The up-extrusion growth device according to claim 1, characterized in that The upward extrusion growth equipment further includes an auxiliary furnace chamber, which is connected to the top of the main furnace chamber; the discharge end of the growth tube extends into the interior of the auxiliary furnace chamber.

5. The up-extrusion growth device according to claim 4, characterized in that: The pressure adjustment mechanism includes a pressurizing mechanism, which is used to increase the pressure inside the main furnace chamber; and / or the pressure adjustment mechanism includes a negative pressure mechanism, which is used to reduce the pressure inside the auxiliary furnace chamber.

6. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth device further includes a first lifting mechanism, which is connected to the growth tube and is used to drive the growth tube to move up and down.

7. The up-extrusion growth device according to claim 1, characterized in that The up-extrusion growth device further includes a shearing mechanism, which is capable of shearing the material at the feed end of the growth tube.

8. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth equipment also includes a second lifting mechanism and a clamp; the second lifting mechanism is connected to the clamp, and the clamp extends into the interior of the growth tube through the discharge end of the growth tube. The second lifting mechanism is used to drive the clamp to move in the growth tube along the length direction of the growth tube.

9. The up-extrusion growth device according to claim 8, characterized in that: The second lifting mechanism can also drive the clamping claw to rotate.

10. The up-extrusion growth device according to claim 1, characterized in that: The main furnace chamber is provided with an exhaust system, which is used to exhaust the waste gas generated during the material melting process from the inside of the main furnace chamber to the outside.

11. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth device further includes a third lifting mechanism, which is disposed on the main furnace chamber and connected to the container, and is used to drive the container to move up and down.

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