Upward extrusion type growth equipment

Abstract

The invention relates to upward extrusion type growth equipment. The upward extrusion type growth equipment comprises a main furnace chamber, a growth pipe and a pressure adjusting mechanism, the main furnace chamber is provided with a container and a first heating mechanism, the container is used for containing materials to be treated, and the first heating mechanism is used for heating the container to melt the materials in the container. The feeding end of the growth pipe penetrates through the main furnace chamber and extends into the container, and the discharging end of the growth pipe is positioned outside the main furnace chamber. The pressure adjusting mechanism is used for enabling the pressure in the container to be greater than the pressure at the discharge end of the growth pipe. During use, materials are placed in the container, and the container is heated by the first heating mechanism, so that the materials in the container are melted. Under the action of the pressure adjusting mechanism, the pressure in the container can be greater than the pressure of the discharge end of the growth pipe, so that the molten material in the container is discharged outwards through the growth pipe under the action of pressure difference. And discharging and cooling the molten material to obtain the required product. In this way, production of various and small quantities of products can be met.

Description

Technical Field

[0001] The present application relates to the technical field of material processing and treatment, and in particular to an upward extrusion growth device. Background Art

[0002] With the rapid development of glass, people have put forward higher requirements on the functions and performance of glass, and then special glass has appeared in life. Special glass refers to glass with special components doped inside according to actual needs, so as to achieve special functions or meet certain performances, such as glass with light transmission, heat insulation, sound insulation, wear resistance, climate change resistance and other properties, and some also have characteristics such as heat preservation, heat absorption, and radiation protection. Taking microcrystalline glass as an example of special glass, the manufacturing process of microcrystalline glass can also be divided into rolling method, pressing method, float method and casting method.

[0003] For the float process, the forming process of microcrystalline glass is completed in a tin bath with protective gas. Specifically, after the glass materials such as sodium salt and calcium salt are melted, the molten glass materials are passed into the tin bath. The molten glass material flows continuously from the tank kiln and floats on the surface of the relatively dense tin liquid. Under the action of gravity and surface tension, the glass liquid spreads and flattens on the tin liquid surface to form a flat upper and lower surface, hardens, and is then led to the transition roller table after cooling. The rollers of the roller table rotate, pulling the glass ribbon out of the tin bath and into the annealing kiln. After annealing and cutting, the glass product is obtained.

[0004] However, the investment scale of glass in related technologies is large, and the energy consumption is high. Once the production line is started, stopping the line will incur huge losses. It is impossible to switch the formula and intermittently produce, so it cannot meet the production of multiple and small quantities of special glass. Summary of the invention

[0005] Based on this, it is necessary to overcome the defects of the prior art and provide an up-extrusion growth device that can meet the production of a variety of small quantities of special glasses.

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

[0007] A main furnace chamber, wherein the main furnace chamber is provided with a container and a first heating mechanism, wherein the container is used to place materials to be processed, and the first heating mechanism is used to heat the container so that the materials inside the container are melted;

[0008] 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; and

[0009] A pressure adjustment mechanism is used to make the pressure inside the container greater than the pressure at the discharge end of the growth tube.

[0010] In one of the embodiments, the upward extrusion growth equipment further includes a cooling mechanism; the cooling mechanism is disposed outside the main furnace chamber, and the cooling mechanism is used to cool the growth tube extending out of the main furnace chamber.

[0011] In one embodiment, the upward extrusion growth equipment further includes a second heating mechanism; the second heating mechanism is disposed outside the main furnace chamber, and the second heating mechanism is used to heat the growth tube extending out of the main furnace chamber.

[0012] In one of the embodiments, 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.

[0013] In one of the embodiments, 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.

[0014] In one embodiment, 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.

[0015] In one embodiment, the upward extrusion growth device further includes a first lifting mechanism, wherein the first lifting mechanism is connected to the growth tube, and the first lifting mechanism is used to drive the growth tube to move up and down.

[0016] In one embodiment, the upward extrusion growth device further includes a shearing mechanism, which is capable of shearing the material at the feed end of the growth tube.

[0017] In one of the embodiments, 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, and the second lifting mechanism is used to drive the clamp to move in the growth tube along the length direction of the growth tube.

[0018] In one embodiment, the second lifting mechanism can also drive the clamping claw to rotate.

[0019] In one of the embodiments, the main furnace chamber is provided with an exhaust system, and the exhaust system is used to exhaust the waste gas generated during the material melting process from the inside of the main furnace chamber to the outside.

[0020] In one of the embodiments, 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 lifting movement of the container.

[0021] In one embodiment, the up-extrusion growth apparatus is used for glass growth.

[0022] When the above-mentioned up-extrusion growth equipment is in use, the material is placed inside the container, and the first heating mechanism heats the container to melt the material inside the container. Under the action of the pressure adjustment mechanism, the pressure inside the container can be made greater than the pressure at the discharge end of the growth tube, so that the molten material inside 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 desired 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 the production of small batches of materials, with low energy consumption and low production costs. The recipe can be switched and intermittent production can be carried out according to actual needs, thereby being able to meet the production of multiple and small quantities of products. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG. 1 is a structural diagram of an upward extrusion growth device according to the first embodiment of the present application.

[0024] FIG. 2 is a schematic diagram of a working state of an upward extrusion growth device according to a second embodiment of the present application.

[0025] FIG. 3 is a schematic diagram of another working state of the upward extrusion growth device according to the second embodiment of the present application.

[0026] FIG. 4 is another schematic diagram of the working state of the upward extrusion growth device of the second embodiment of the present application.

[0027] FIG. 5 is a schematic diagram of another working state of the upward extrusion growth device of the second embodiment of the present application.

[0028] FIG. 6 is a curve diagram showing the change of temperature with working time when the material is glass-ceramics in an embodiment of the present application.

[0029] 10. Main furnace chamber; 11. Container; 111. Carbon-carbon crucible; 112. Growth crucible; 12. First heating mechanism; 20. Growth tube; 30. Pressure adjustment mechanism; 31. Pressurization mechanism; 32. Negative pressure mechanism; 41. Material; 42. Rod body; 421. Spikes; 50. Cooling mechanism; 60. Second heating mechanism; 61. Channel; 70. Auxiliary furnace chamber; 80. Shearing mechanism; 91. Second lifting mechanism; 911. Connecting shaft; 912. Clamp; 93. Sealing ring; 94. Insulation cover; 95. Third lifting mechanism; 96. Optical sensor. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] Refer to Figure 1, which shows a structural diagram of an up-extrusion growth device according to a first embodiment of the present application. An embodiment of the present application provides an up-extrusion growth device, which includes: a main furnace chamber 10, a growth tube 20, and a pressure adjustment 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 feed end of the growth tube 20 extends through the main furnace chamber 10 into the container 11, and the discharge end of the growth tube 20 is located outside the main furnace chamber 10. The pressure adjustment mechanism 30 is used to make the pressure inside the container 11 greater than the pressure at the discharge end of the growth tube 20.

[0032] It should be noted that the material 41 to be processed in this embodiment includes but is not limited to glass, especially special glass, such as microcrystalline glass; in addition, the material 41 to be processed can also be other materials such as ceramics, crystals, metals, plastics and resins. In this embodiment, the material 41 is specifically microcrystalline glass as an example, but it is not limited to this.

[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 brick (also known as fused zirconium corundum brick, abbreviated as AZS in English), platinum and glassy carbon.

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

[0035] When the above-mentioned up-extrusion growth equipment is in use, the material 41 is placed inside the container 11, and the first heating mechanism 12 heats the container 11 to melt the material 41 inside the container 11. Under the action of the pressure adjustment mechanism 30, the pressure inside the container 11 can be made greater than the pressure at the discharge end of the growth tube 20, so that the molten material 41 inside the container 11 is discharged outward through the growth tube 20 under the action of the pressure difference. After the molten material 41 is discharged and cooled, the desired product can be obtained. In this way, the volume size 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 the production of small batches of materials, with low energy consumption and low production costs. The recipe can be switched and intermittent production can be carried out according to actual needs, so that it can meet the production of multiple and small quantities of products.

[0036] The first heating mechanism 12 may 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., and may be flexibly selected 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 against the outer wall of the container 11 to transfer heat to the container 11; it can also be arranged circumferentially around the container 11 and abut against the outer wall of the container 11 to transfer heat to the container 11, or there is an air gap between the outer wall of the container 11 and transfer heat to the container 11 by thermal radiation, so that the container 11 is heated to a preset temperature.

[0038] Specifically, the first heating mechanism 12 can melt the glass-ceramics inside the container 11 into a liquid state, thereby achieving homogenization of the glass-ceramics. When the glass-ceramics are melted into a liquid state, for example, the first heating mechanism 12 is controlled to reduce the working power, so that the temperature of the container 11 is reduced, thereby preliminarily cooling the liquid glass-ceramics, which is beneficial for subsequent discharge into the growth tube 20 outside the main furnace chamber 10 for secondary cooling and molding.

[0039] After the molten material 41 is discharged outward through the growth tube 20, it can be cooled and gradually formed at room temperature; or it can be equipped with a cooling mechanism 50. Under the cooling effect of the cooling mechanism 50, the molten material 41 can be quickly cooled and formed, thereby improving production efficiency.

[0040] 1 , in one embodiment, the up-extrusion growth device further includes a cooling mechanism 50 . The cooling mechanism 50 is disposed outside the main furnace chamber 10 , and is used to cool the growth tube 20 extending outside the main furnace chamber 10 .

[0041] Optionally, the cooling mechanism 50 may adopt air cooling, such as using a fan to blow air toward the growth tube 20 to lower the temperature of the growth tube 20; or may adopt physical contact cooling, such as using a circulating water cooling tube or a semiconductor refrigeration component to contact the outer wall of the growth tube 20, thereby lowering the temperature of the growth tube 20.

[0042] When the material 41 is microcrystalline glass, the cooling mechanism 50 cools the growth tube 20 while the molten material 41 is discharged outward through the growth tube 20 , so that the material 41 can gradually change from liquid to solid, thereby forming a glass product, which is a rod 42 .

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

[0044] It should be noted that after the glass product is formed into a desired shape through the growth tube 20 , various post-processing such as grinding, engraving, printing, etc. may be performed on the glass product to obtain the desired glass product.

[0045] Please refer to FIG. 1 . In one embodiment, the up-extrusion growth device further includes a second heating mechanism 60. The second heating mechanism 60 is disposed outside the main furnace chamber 10 and is used to heat the growth tube 20 extending outside the main furnace chamber 10. Thus, when the cooling mechanism 50 cools the growth tube 20 so that the microcrystalline glass is cooled and formed, the second heating mechanism 60 can heat the growth tube 20 so that the microcrystalline glass can be nucleated and crystallized. Then, the cooling mechanism 50 can cool the growth tube 20 again to obtain the desired glass product.

[0046] After a large number of experiments and studies, it was found 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 obtained by the second cooling and forming is greatly improved.

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

[0048] On the basis of the foregoing embodiments, in order to make the working principle of the up-extrusion growth device in this embodiment for growing microcrystalline glass clearer, the following is specifically introduced in conjunction with the glass up-extrusion growth device shown in FIG. 1 and the temperature variation relationship diagram of the microcrystalline glass of an embodiment shown in FIG. 6 over time:

[0049] In the stage from 0 to t1, the glass-ceramics is placed inside the container 11, and the first heating mechanism 12 heats the container 11, so that the temperature of the glass-ceramics inside the container 11 increases and gradually melts, thereby achieving melting and homogenization of the glass-ceramics;

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

[0051] Time t2 corresponds to the time when the liquid microcrystalline glass is discharged outward through the growth tube 20.

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

[0053] In the stage from t3 to t4, the growth tube 20 is heated by the second heating mechanism 60 to form a nucleus of the glass-ceramics;

[0054] From stage t4 to t5, the temperature of the glass-ceramic is maintained constant to allow the glass-ceramic to crystallize;

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

[0056] It can be seen that the upward extrusion growth equipment in this embodiment can complete all the steps of melting, clarifying, homogenizing, forming, nucleating and crystallizing special glass, especially microcrystalline glass, and the equipment occupies a small area.

[0057] The volume of the container 11 in this embodiment can be flexibly adjusted and set according to actual needs. The volume of the container 11 satisfies the weight of the installed materials, including but not limited to 0.5Kg, 1Kg, 5Kg, 10Kg, 50Kg, 100Kg, 200Kg, 500Kg or 1000Kg, 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 100Kg, or even less than or equal to 10Kg, or even about 1Kg, it is suitable for the production of small batches of materials, with low energy consumption and low production cost. It can switch recipes and perform intermittent production according to actual needs, thereby realizing the production of multiple, small quantities and low-cost special glasses.

[0058] In some embodiments, the container 11 is a crucible, for example. The crucible includes but is not limited to any one or more combinations of quartz crucible, corundum (Al2O3), fused brick, molybdenum, tungsten, platinum, glassy carbon, and refractory clay crucible.

[0059] Specifically, the crucibles in this embodiment are, for example, two and nested with each other. The crucible located on the outside is, for example, a carbon-carbon crucible 111, which plays a heat conductive role and transfers heat to the crucible located inside it. It has a long service life and does not need to be replaced frequently. The crucible located inside is a growth crucible 112, which is used to hold the material 41 to be processed, and directly transfers heat to the material 41 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 connect with a material preparation mechanism that can provide material 41. Among them, the feeding port can be set as a continuous feeding port, for example, and the continuous feeding port is used to continuously receive the material 41 provided by the material preparation mechanism. The material 41 is fed into the interior of the container 11 through the feeding port, melted under the heating treatment of the container 11, and continuously discharged outward through the growth tube 20. Optionally, a switch valve is provided at the feeding port. When the material 41 inside the container 11 is insufficient, the switch valve is opened, and the material is fed into the container 11 through the feeding port; when the material 41 inside 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, thereby preventing the gas of the external environment from entering the main furnace chamber 10 and causing an adverse effect on the melting of the material 41 inside the main furnace chamber 10. In addition, since the material 41 can be continuously replenished into the main furnace chamber 10 through the feeding port, it is ensured that the material 41 inside the container 11 is sufficient. Then the growth tube 20 continuously discharges the material, and a molded product of any length can be obtained. In addition, materials can be added and melted continuously to increase production capacity and crucible service life.

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

[0062] As some optional schemes, the upward extrusion growth equipment may not need to set up the auxiliary furnace chamber 70, or a discharge port is provided on the auxiliary furnace chamber 70, and the discharge port is opposite to the discharge end port of the growth tube 20. The molded product grown in the growth tube 20 can be directly discharged outward through the discharge port, which can achieve continuous discharge. The discharge will not be interfered by the auxiliary furnace chamber 70, so that the length of the molded product can be longer.

[0063] As some optional solutions, there is no need to set a feeding port on the main furnace chamber 10. When the material 41 in the container 11 is used up, the upward extrusion growth device can be stopped, and then the cover of the main furnace chamber 10 can be opened, and the same material 41 or other types of materials 41 can be added into the container 11, and the growth operation of the material 41 can be continued.

[0064] Please refer to Fig. 1, in one embodiment, the growth tube 20 is installed in the main furnace chamber 10 and the auxiliary furnace chamber 70 in a manner that it can be lifted and moved. The upper extrusion growth device also includes a first lifting mechanism, which is installed on the auxiliary furnace chamber 70, connected to the growth tube 20, and used to drive the growth tube 20 to move up and down. In this way, before the step of heating and melting the material 41 inside the container 11, the growth tube 20 is specifically located inside the auxiliary furnace chamber 70; when the material 41 inside the container 11 is heated, melted and homogenized, the first lifting mechanism drives the growth tube 20 to descend to the inside of the main furnace chamber 10, and the feed end of the growth tube 20 enters into the container 11, so that under the pressure of the pressure adjustment mechanism, the molten material 41 can gradually enter into the growth tube 20 through the feed end; when the material 41 is squeezed into the growth tube 20 for a certain length, specifically for example, when it reaches the discharge end, that is, the material 41 fills the entire growth tube 20, the first lifting mechanism drives the growth tube 20 to rise into the auxiliary furnace chamber 70, leaving the melt inside the container 11, and can simultaneously drive the material 41 inside the growth tube 20 into the auxiliary furnace chamber 70, so that the material 41 inside the growth tube 20 is better cooled and formed inside the auxiliary furnace chamber 70.

[0065] In some embodiments, the growth tube 20 is provided with a rotation function to facilitate demolding of the material 41. Specifically, the first lifting mechanism can not only drive the growth tube 20 to move up and down, but also drive the growth tube 20 to rotate around its central axis, thereby realizing the rotation function of the growth tube 20.

[0066] In some embodiments, the first lifting mechanism includes but is not limited to a gear rack mechanism, a motor screw mechanism, a cylinder mechanism or a cam mechanism, etc., as long as it can drive the growth tube 20 to move up and down. In addition, in order to drive the growth tube 20 to rotate, the first lifting mechanism is integrated with a rotating motor, and the growth tube 20 is driven by the rotating motor to rotate.

[0067] Please refer to FIG1 . In one embodiment, the upward extrusion growth device further includes a shearing mechanism 80 . The shearing mechanism 80 is disposed at the bottom of the auxiliary furnace chamber 70 . 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, a cutting blade or a cutting board, etc.

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

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

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

[0072] On the contrary, if the bottom end of the rod body 42 is not sheared by the shearing mechanism 80, the rod body 42 with the spikes 421 flows into the post-processing step for processing. In the post-processing step, the spikes 421 are usually directly broken off or cut. Since the spikes 421 are cooled and have a high hardness, the rod body 42 is easily broken during the post-processing process, which reduces the product quality.

[0073] Please refer to Figures 2 to 5. In one embodiment, the upward extrusion growth device further includes a second lifting mechanism 91 and a clamp 912. The second lifting mechanism 91 is installed on the auxiliary furnace chamber 70, and the second lifting mechanism 91 is connected to the clamp 912. The clamp 912 extends into the interior 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 clamp 912 to move in the growth tube 20 along the length direction of the growth tube 20.

[0074] Specifically, the second lifting mechanism 91 includes a connecting shaft 911. The connecting shaft 911 is connected to a clamping jaw 912. The connecting shaft 911 and the clamping jaw 912 extend into the interior of the growth tube 20 and can reciprocate in the growth tube 20 along the length direction of the growth tube 20.

[0075] Please refer to FIG2 . When the first lifting mechanism drives the growth tube 20 to descend to the inside of the main furnace chamber 10 and the feed end of the growth tube 20 enters the inside of the container 11, the second lifting mechanism 91 drives the clamp 912 to move to the feed end of the growth tube 20. In addition, the pressure adjustment mechanism 30 allows the molten material 41 in the container 11 to enter the inside of the growth tube 20 through the feed end, and the material 41 wraps around the clamp 912. Based on the adhesion between the clamp 912 and the material 41, the clamp 912 clamps the top of the material 41. Please refer to FIG2 to FIG3 . When the material 41 continues to move upward, the second lifting mechanism 91 drives the clamp 912 to move upward synchronously. When the clamp 912 moves upward, it can provide an upward driving force to the top of the material 41, thereby driving the material 41 in the growth tube 20 to move upward smoothly until the growth tube 20 is filled.

[0076] In one embodiment, the second lifting mechanism 91 can also drive the clamping jaw 912 to rotate. Thus, when the second lifting mechanism 91 drives the clamping jaw 912 to rotate, the clamping jaw 912 can synchronously drive the material 41 to rotate, thereby effectively preventing the material 41 from sticking inside the growth tube 20, thereby enabling better demoulding.

[0077] Specifically, the second lifting mechanism 91 drives the clamp 912 to rotate while driving the clamp 912 to move upward. This can drive the material 41 into the growth tube 20 on the one hand, and drive the material 41 to rotate on the other hand, thereby better preventing the material 41 from sticking 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 will not be described in detail here.

[0079] The chemical reaction during the glass melting process will release a large amount of gas, such as CO2, H2O, NO2 and SO2. Based on this, an exhaust system is provided on the main furnace chamber 10. The exhaust system is used to exhaust and treat the waste gas generated during the melting process of the material 41. Among them, the exhaust system specifically adopts a large-displacement exhaust system. During the glass melting process, the main furnace chamber 10 is exhausted with a large amount of exhaust through the exhaust system to effectively remove the waste gas generated by the melting.

[0080] During the upward extrusion growth of the material 41, the pressure adjustment 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 is 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 that the main furnace chamber 10 is under positive pressure; it can also be that the auxiliary furnace chamber 70 is under negative pressure and the main furnace chamber 10 is under positive pressure; it can also be that both the auxiliary furnace chamber 70 and the main furnace chamber 10 are under positive pressure, and the pressure of the main furnace chamber 10 is greater than that of the auxiliary furnace chamber 70; it can also be that both the auxiliary furnace chamber 70 and the main furnace chamber 10 are 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 adjustment mechanism 30 includes a pressurizing mechanism 31 for increasing the pressure inside the main furnace chamber 10 . And / or, the pressure adjustment mechanism 30 includes a negative pressure mechanism 32 for reducing the pressure inside the auxiliary furnace chamber 70 .

[0083] Specifically, the pressurizing mechanism 31 provides inert gas into the main furnace chamber 10 , and the inert gas includes but is not limited to argon or nitrogen, etc. In this way, not only a pressure difference can be formed to allow the material 41 to be squeezed into the growth tube 20 , but also the material 41 can 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 provided between the outer wall of the tube section 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 isolated from the main furnace chamber 10 by the air pressure between the auxiliary furnace chamber 70 and the main furnace chamber 10. The growth tube 20 is placed in the melt, and a pressure difference is applied to the inner and outer liquid surfaces of the growth tube 20, so that the melt is squeezed and grown along the growth tube 20, and at the same time, a glass rod chuck is used to assist the upward rotation growth, and demolding is performed.

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

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

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

[0088] There are two sealing rings 93 in this embodiment, one of which is fixedly disposed at the bottom end of the channel 61 and sleeved on the outer wall of the growth tube 20; the other sealing ring 93 is fixedly sleeved on the top end of the growth tube 20 and is disposed inside the channel 61 so as to be movable up and down along with the growth tube 20.

[0089] In some embodiments, a heat preservation cover 94 is further provided on the top of the main furnace chamber 10. The heat preservation cover 94 is provided above the container 11 to provide heat preservation. In addition, the growth tube 20 passes through the heat preservation cover 94 and extends downward into the interior of the container 11. Driven by 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 up-extrusion growth device further includes a third lifting mechanism 95. The third lifting mechanism 95 is disposed on the main furnace chamber 10, and the third lifting mechanism 95 is connected to 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 feed end of the growth tube 20, the third lifting mechanism 95 drives the container 11 to move up and down, and can adaptively adjust the height position of the container 11 inside the main furnace chamber 10, so that the material 41 inside the container 11 can enter the inside of the growth tube 20 through the feed end of the growth tube 20.

[0091] In some embodiments, the third lifting mechanism 95 also has a rotation function, which can drive the container 11 to rotate, thereby making the material 41 inside the container 11 more uniform.

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

[0093] In some embodiments, the up-extrusion growth device further includes an optical sensor 96 and a controller. The optical sensor 96, the pressure adjustment 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 all electrically connected to the controller. The optical sensor 96 is used to detect the state of the material 41 inside the container 11 and 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 detect the state of the material 41 and the height position of the material 41 according to the optical sensor 96, and correspondingly control the pressure adjustment 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, and the degree of automation is relatively high.

[0094] The main furnace chamber 10 realizes the functions of heating, melting, homogenizing, clarifying and initial cooling of the microcrystalline glass, and then the auxiliary furnace chamber 70 realizes the functions of lowering the growth tube 20, extruding cooling and forming, raising the growth tube 20, shearing and removing the tail, nucleation, microcrystallization and cooling.

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

[0096] To address the problem of continuously variable glass viscosity, the first lifting mechanism is used to lower the growth tube 20 and insert it into the molten glass, pressurize the main furnace chamber 10 or apply negative pressure to the auxiliary furnace chamber 70, so that a pressure difference is generated at the inner and outer interfaces of the quartz tube, providing power for the molten glass to squeeze upward in the quartz tube.

[0097] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0098] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0099] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0100] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0101] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0102] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0103] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An upward extrusion growth device, 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, wherein the container is used to place materials to be processed, and the first heating mechanism is used to heat the container so that the materials inside the container are melted; 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; and A pressure adjustment mechanism is used to make the pressure inside the container greater than the pressure at the discharge end of the growth tube.

2. The upward extrusion growth device according to claim 1, characterized in that: The upward extrusion growth equipment also 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 out of the main furnace chamber.

3. The upward extrusion growth device according to claim 1, characterized in that: The upward extrusion growth equipment also includes a second heating mechanism; the second heating mechanism is arranged outside the main furnace chamber, and the second heating mechanism is used to heat the growth tube extending out of the main furnace chamber.

4. The upward 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.

5. The upward extrusion growth device according to claim 1, characterized in that: The upward extrusion growth equipment also 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.

6. The up-extrusion growth device according to claim 5, 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.

7. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth device also 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.

8. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth device also includes a shearing mechanism, which can shear the material at the feed end of the growth tube.

9. 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.

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

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

12. The up-extrusion growth device according to claim 1, characterized in that: The upward extrusion growth device also includes a third lifting mechanism, which is arranged on the main furnace chamber, connected to the container, and used to drive the lifting movement of the container.

13. The up-extrusion growth device according to any one of claims 1 to 12, characterized in that: The up-extrusion growth device is used for glass growth.

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