Molding switching device, glass block molding system and method

Abstract

The application relates to a forming switching device, a glass block forming system and a method, which comprise a supporting seat, a material receiving structure arranged on the supporting seat, the material receiving structure being configured with a containing groove for collecting glass liquid flowing out of a discharging pipe, and a flow cutting structure arranged on at least one end of the material receiving structure along a first direction, the flow cutting structure being used for cutting off at least a glass material column flowing out of the discharging pipe; wherein the forming switching device moves along the first direction relative to the discharging pipe to assist a formed forming mold in cutting off the glass material column, and moves along the first direction to receive the glass liquid flowing out of the discharging pipe until the glass liquid in the discharging pipe flows into a preset position of the forming mold to be formed. The forming switching device provided by the application significantly reduces the operation difficulty of forming mold switching, and greatly improves the glass quality problem caused by mold switching.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass production, in particular to a forming switching device, a glass block forming system and a method. BACKGROUND

[0002] Large-diameter glass blocks are widely used in aerospace, precision machining and testing, etc. due to their advantages such as large monomer size, high mechanical strength, excellent optical performance, strong chemical stability, and controlled expansion.

[0003] At present, the forming method for producing large-diameter block glass mainly adopts the method of casting forming glass blocks. In the casting forming method, the glass liquid in the discharge pipe flows downward to fill the internal space of the customized mold to complete the forming of the required glass block, and then the mold and the formed glass liquid at the end of the forming are transported to the next link, and the next mold is placed below the discharge pipe to start the casting forming of another glass block. The above forming method involves switching process of two forming molds.

[0004] In the traditional production process, there are mainly two switching processing methods. The first is direct switching method, specifically, when the first mold is finished, the mold is directly moved from below the discharge pipe to the next process, and then the second mold is placed below the discharge pipe to start forming the second mold. This switching method is prone to the following problems: the glass liquid in the discharge pipe continues to flow during the switching process, which causes defects on the surface of the first formed glass block; and the instability caused by switching during the initial forming of the second mold easily leads to poor quality of the bottom of the formed glass block, affecting the material utilization. The second is indirect switching method, specifically, after the first mold is finished, the glass liquid continuously flowing out of the discharge pipe is caught by a ladle, then the mold is moved from below the discharge pipe to the next process, and then the second mold is placed below the discharge pipe to start forming the second mold. This switching method is prone to the following problems: it is easily restricted by the flow rate, and when a large flow rate (e.g. more than 100 L / h) is used for forming, it is difficult to stably complete the mold switching due to the limited space and stress of the ladle, thereby causing the problems of large operation difficulty and low control precision. SUMMARY

[0005] Therefore, it is necessary to provide a forming switching device, a glass block forming system and a method to solve the problems of glass quality such as surface defects and uneven internal stress in the traditional mold switching process.

[0006] The first aspect of the embodiment of the present application provides a forming switching device for switching between multiple forming molds; the forming switching device comprises:

[0007] a support seat;

[0008] A receiving structure is arranged on the support base, and the receiving structure is configured with a receiving groove for collecting the glass liquid flowing out of the discharge pipe;

[0009] A flow-cutting structure is arranged on at least one end of the receiving structure along the first direction, and the flow-cutting structure is used for cutting off at least the glass column flowing out of the discharge pipe;

[0010] The forming switching device moves along the first direction relative to the discharge pipe to assist the formed forming mold in cutting off the glass column, and moves along the first direction to receive the glass liquid flowing out of the discharge pipe until the glass liquid in the discharge pipe flows into the preset position of the forming mold to be formed.

[0011] In one of the embodiments, the forming switching device further comprises a cooling structure arranged on the support base and in contact with the receiving structure and the flow-cutting structure.

[0012] In one of the embodiments, the receiving structure comprises a receiving box formed with the receiving groove.

[0013] The side wall of the receiving box adjacent to the flow-cutting structure is provided with a flow guide gap.

[0014] In one of the embodiments, the flow-cutting structure is configured with a flow-cutting groove in communication with the receiving groove through the flow guide gap.

[0015] The flow-cutting structure is provided with a flow-cutting plate on the side away from the receiving box, the bottom end of the flow-cutting plate is arranged close to the bottom of the receiving box, and the top end of the flow-cutting plate is inclined away from the receiving box.

[0016] In one of the embodiments, the angle between the flow-cutting plate and the first direction is between 15° and 75°.

[0017] In one of the embodiments, the flow-cutting structure further comprises two side plates connected with the flow-cutting plate, and a cooling plate connecting the two side plates, and the flow-cutting groove is formed by the two side plates, the cooling plate and the flow-cutting plate.

[0018] Along the first direction, the projection of the two side plates coincides with the projection of the cooling structure.

[0019] The cooling plate is in adaptive contact with the cooling structure.

[0020] In one of the embodiments, the cooling structure comprises a hollow cooling frame, the receiving box is arranged in the cooling frame, and the inner wall of the cooling frame is in contact with the outer wall of the receiving box; and the outer wall of the cooling frame is in contact with the outer wall of the intercepting structure.

[0021] Part of the cooling frame between the receiving box and the intercepting structure is provided with a gap.

[0022] In one of the embodiments, the cooling frame is provided with an annular fluid channel, and the side wall of the cooling frame extending along the first direction is provided with a liquid inlet and a liquid outlet.

[0023] The fluid channel between the liquid inlet and the liquid outlet is provided with a partition plate, and the liquid inlet is arranged close to the intercepting structure.

[0024] In one of the embodiments, the forming switching device further comprises a heat preservation structure arranged in the accommodating groove.

[0025] The thickness of the heat preservation structure is less than or equal to 0.5 times the depth of the accommodating groove.

[0026] In one of the embodiments, the support base comprises a plurality of lifting rods and a cross rod arranged at the end of the lifting rod, and the cross rod is used for supporting the cooling structure.

[0027] The lifting rod is driven by the driving mechanism to drive the cooling structure, the receiving structure and the intercepting structure to ascend or descend.

[0028] In one of the embodiments, the forming switching device further comprises a traveling assembly arranged at the bottom of the support base and used for driving the support base to move along the first direction.

[0029] The first direction is perpendicular to the direction of gravity.

[0030] The second aspect of the embodiments of the present application provides a glass block forming system, which comprises the forming switching device described in the above embodiments; and

[0031] A first forming die and a second forming die, the first forming die and the second forming die are respectively located at the two ends of the forming switching device along the first direction.

[0032] The forming switching device is used for intercepting the glass column flowing out of the discharge pipe above the first forming die after the first forming die is formed, and moving along the first direction to receive the glass liquid flowing out of the discharge pipe until the discharge pipe is located directly above the discharge hole in the second forming die.

[0033] The third aspect of the embodiments of the present application provides a glass block forming method, which is applied to the glass block forming system described in the above embodiments, and the glass block forming method comprises the following steps:

[0034] After the forming of the first forming mold is completed, the distance between the forming switching device and the pipe opening of the discharge pipe in the height direction is adjusted, and the cooling structure is started;

[0035] The forming switching device is controlled to move in the first direction to cut off the glass liquid column flowing out of the discharge pipe, and the glass liquid flowing out of the discharge pipe is collected into the containing groove;

[0036] The relative position between the second forming mold and the forming switching device is adjusted, so that after the forming switching device leaves the area where the discharge pipe is located, the glass liquid flowing out of the discharge pipe flows into the discharge hole of the second forming mold.

[0037] The forming switching device, the glass block forming system and the method described above realize rapid and effective switching between multiple forming molds through the forming switching device located between the multiple forming molds, effectively solve the problems of glass surface defects and poor forming quality existing in the traditional switching mode. The glass material column is cut off by using the flow cutting structure, which can avoid the adverse effects of the glass material column on the formed glass during the switching process, and improve the glass forming quality; the receiving structure can collect the glass liquid on one hand to prevent the glass liquid from falling randomly and ensure the safety and orderliness of the production process, and on the other hand can adjust the relative position between the receiving structure and the to-be-formed mold to ensure that after the receiving structure leaves the area where the discharge pipe is located, the glass liquid flowing out of the discharge pipe flows exactly to the preset position (discharge hole) of the to-be-formed mold, thereby effectively avoiding the glass material column from falling onto the low mold or the side mold of the second forming mold to form a contact interface defect, and further improving the stress uniformity of the glass block during the subsequent annealing process, and effectively reducing the glass block cracking. The forming switching device provided by the present application significantly reduces the operation difficulty of the forming mold switching, and greatly improves the glass quality problem caused by the mold switching. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the forming switching device according to some embodiments of the present application.

[0039] Figure 2 FIG. 2 is a schematic diagram of the top view structure of the forming switching device according to some embodiments of the present application.

[0040] Figure 3 FIG. 3 is a schematic diagram of the sectional structure of the forming switching device according to some embodiments of the present application. Figure 2

[0041] Figure 4 ​Positional schematic diagram of the material receiving structure and the flow intercepting structure according to some embodiments of the present application.

[0042] Figure 5 Top view schematic diagram of the material receiving structure and the flow intercepting structure according to some embodiments of the present application.

[0043] Figure 6 Positional schematic diagram of the cooling structure and the flow intercepting structure according to some embodiments of the present application. Figure 5 Schematic diagram of the sectional structure in A-A direction.

[0044] Figure 7 Positional schematic diagram of the cooling structure and the flow intercepting structure according to some embodiments of the present application.

[0045] Figure 8 Front view schematic diagram of the cooling structure and the flow intercepting structure according to some embodiments of the present application.

[0046] Figure 9 Schematic diagram of the sectional structure in B-B direction. Figure 8 Schematic diagram of the sectional structure in B-B direction.

[0047] Figure 10 Schematic diagram of the support seat and the traveling assembly according to some embodiments of the present application.

[0048] Reference signs:

[0049] 10, discharge pipe; 20, first forming mold; 30, second forming mold; 31, forming trolley; 40, forming track;

[0050] 510, support seat; 511, lifting rod; 512, cross bar;

[0051] 520, material receiving structure; 521, containing groove; 522, flow guiding notch;

[0052] 530, flow intercepting structure; 531, flow intercepting groove; 532, flow intercepting plate; 533, side plate; 534, cooling plate;

[0053] 540, cooling structure; 541, cooling frame; 5413, avoiding notch; 5411, liquid inlet; 5412, liquid outlet; 5414, first cooling channel; 5415, second cooling channel; 5416, third cooling channel; 5417, fourth cooling channel; 5418, fifth cooling channel; 5419, isolation plate;

[0054] 550, traveling assembly;

[0055] 560, heat preservation structure. DETAILED DESCRIPTION

[0056] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be 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 different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0057] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "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 purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0058] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first", "second" can include at least one of the features explicitly or implicitly. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0059] In the present application, unless otherwise specifically defined and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be broadly understood. 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 or interaction relationship of two elements, unless otherwise specifically limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this 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. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0061] 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 an intermediate 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 an intermediate element. 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 embodiment.

[0062] As described in the background technology section, the switching method of multiple molding molds used in the related art can easily lead to defects on the surface of the completed glass, poor quality of the molded glass at the bottom of the molding mold to be molded, and difficulty in stably completing mold switching. The inventors discovered that the reason for the above phenomenon is that in order to meet the high-quality requirements of glass blocks in fields such as aerospace, precision processing and testing, it is also necessary to ensure the stability of the glass liquid in the molding mold to avoid defects such as bubbles and unevenness, which affect the internal structure and performance of the glass block. To achieve the above purpose, it is necessary to ensure the continuity of the glass liquid casting and molding, that is, the glass liquid needs to be filled into the mold at a certain temperature and fluidity state to ensure the molding quality. If the flow of the glass liquid is stopped, the temperature and fluidity of the glass liquid may change when it is restarted, making it difficult to ensure that the glass liquid is in the optimal molding state during each casting, which can easily affect the consistency and stability of the glass block, and will increase production time and cost, reduce production efficiency, and is not conducive to large-scale production.

[0063] However, the glass production process, especially when producing large-diameter glass blocks through casting, typically involves the molding of multiple glass blocks. At the start of molding, molten glass is gradually transferred from the melting equipment into a discharge pipe. From there, the molten glass is conveyed through the discharge pipe into a forming mold to form a glass block. When the molding of the first glass block is complete, the next mold is switched to continue molding the glass block until the process goal is achieved and the molding process is terminated.

[0064] The above switching modes mainly include two kinds, the first kind is direct switching method, the switching mode is easy to exist the following problems, because the glass liquid in the discharge pipe is still flowing in the switching process, the first block of the formed glass surface is easy to produce defects; and the second mold is easy to cause poor quality of the bottom of the formed glass in the early stage of forming due to the instability caused by switching, which affects the material utilization. The second kind is indirect switching method, which is easy to exist the following problems, which is easy to be restricted by flow, when the glass flow forming is used (for example, more than 100L / h), due to the limited space of the material spoon and the stress, it is difficult to complete the mold switching stably, thereby causing the problems of large operation difficulty and low control precision.

[0065] Based on the above technical problems, the inventors have found that by providing a forming switching device between two forming molds to assist the switching of the first forming mold to the second forming mold after the forming is completed. Based on this, the inventors have further researched the technical scheme of the embodiments of the present application. Specifically, the forming switching device provided by the embodiments of the present application comprises a support seat; a material receiving structure arranged on the support seat, the material receiving structure being configured with an accommodating groove for collecting the glass liquid flowing out of the discharge pipe; and a flow cutting structure arranged at least one end of the material receiving structure along a first direction, the flow cutting structure being used at least for cutting off the glass column flowing out of the discharge pipe; wherein the forming switching device moves along the first direction relative to the discharge pipe to assist the cutting off of the glass column of the formed forming mold, and moves along the first direction to receive the glass liquid flowing out of the discharge pipe until the glass liquid in the discharge pipe flows into a preset position of the forming mold to be formed.

[0066] By using the above technical scheme, in the large-diameter glass block casting forming process, the forming switching device can realize the rapid switching between multiple forming molds, which helps to improve the problem of glass surface defects caused by the cutting off of the free glass column at the end of forming, and improve the glass forming quality; at the same time, it also helps to prevent the glass column from falling into the bottom mold or the side mold of the forming mold to be formed to form a contact interface defect, thereby improving the stress uniformity of the glass block in the subsequent annealing process and avoiding the situation of glass block cracking. The use of the forming switching device can effectively improve the switching efficiency of the forming mold.

[0067] The above is the core idea of the present application, and the technical scheme in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0068] Referring to Figures 1 to 3 as shown, Figure 1 is a schematic diagram of the overall structure of the forming switching device provided according to some embodiments of the present application. Figure 2A schematic diagram of a top view of a forming switching device according to some embodiments of the present application. Figure 3 For Figure 2 A schematic diagram of a cross-sectional view along A-A. The forming switching device according to an embodiment of the present application is used for switching between multiple forming molds; the forming switching device can include a support base 510, a material receiving structure 520, and a flow cutting structure 530.

[0069] The material receiving structure 520 is arranged on the support base 510, and the material receiving structure 520 is configured with a receiving groove 521 for collecting the glass liquid flowing out of the discharge pipe 10; the flow cutting structure 530 is arranged at least one end of the material receiving structure 520 along the first direction, and the flow cutting structure 530 is at least used to cut off the glass material column flowing out of the discharge pipe 10; wherein the forming switching device moves along the first direction relative to the discharge pipe 10 to assist in cutting off the glass material column of the already formed forming mold, and moves along the first direction to receive the glass liquid flowing out of the discharge pipe 10, until the glass liquid in the discharge pipe 10 flows into the preset position of the forming mold to be formed.

[0070] It can be understood that, in order to clearly understand the structure of the forming switching device in this example, first, the use scenario of the forming switching device is introduced. In the glass forming flow line, the position (height adjustable) of the discharge pipe 10 is relatively constant, and the discharge pipe 10 is moved under multiple different forming molds in turn, so as to realize the purpose of accumulating the glass liquid flowing out of the discharge pipe 10 in the forming mold.

[0071] In order to realize the rapid and effective switching of multiple different forming molds, the forming switching device in this example can be located between two adjacent forming molds to assist in the rapid and effective switching between adjacent forming molds. The specific process can be that the first direction is defined as the flow line direction, that is, the moving direction of the multiple forming molds; at the same time, the two forming molds located at the two ends of the forming switching device along the first direction are defined as the first forming mold 20 and the second forming mold 30. The glass liquid in the discharge pipe 10 flows downward under the action of gravity, and after the glass liquid flows out of the discharge pipe 10, a certain height of the free material column is formed, the free material column contacts the bottom mold of the first forming mold 20, and gradually accumulates in the space formed by the bottom mold and the side mold of the first forming mold 20, and after the glass liquid reaches the process required thickness, the free material column needs to be cut off, and the first forming mold 20 moves out of the area where the discharge pipe 10 is located, and the glass block forming is completed.

[0072] Meanwhile, the second forming mold 30 (to-be-formed mold) and the forming switching device are moved to the area where the discharge pipe 10 is located, and when the intercepting structure 530 contacts the glass liquid free column (glass column) flowing out of the discharge pipe 10, the intercepting structure 530 exerts a cutting force on the glass column, thereby quickly cutting the glass column between the discharge pipe 10 and the free surface of the glass liquid in the first forming mold 20, that is, the intercepting structure 530 quickly cuts the glass column into two parts, the glass column below the intercepting structure 530 slowly falls onto the free surface of the glass in the first forming mold 20 to form a glass block, and since the height of the glass column cut by the intercepting structure 530 can be controlled, the problem of the contact interface and the air bubbles caused by the glass block falling onto the free surface of the glass block when the height of the glass column is too high when the first forming mold 20 is finished forming can be effectively avoided. The glass column above the intercepting structure 530 continues to flow downward and falls into the accommodating groove 521 of the receiving structure 520, and the glass liquid flowing out of the discharge pipe 10 continuously accumulates in the accommodating groove 521 as the forming switching device continues to move.

[0073] Then, when the end of the forming switching device passes through the area where the discharge pipe 10 is located, the second forming mold 30 that has been moving with the forming switching device moves to the area where the discharge pipe 10 is located, that is, when the forming switching device leaves, the glass liquid flowing out of the discharge pipe 10 flows into the discharge hole of the second forming mold 30. Finally, by adjusting the forming parameters of the second forming mold 30, and after the adjustment is completed, the discharge hole at the bottom of the second forming mold 30 is blocked, and the glass is started to be formed.

[0074] The forming switching device provided in the example can be moved to the tail end of the second forming mold 30 after moving out of the area where the discharge pipe 10 is located, to participate in the quick switching between the second forming mold 30 and the subsequent forming mold. Of course, a plurality of forming switching devices can be provided to realize the switching between adjacent forming molds, which is not limited herein.

[0075] It should be noted that the bottom center of each forming mold has a discharge hole, and a latch is arranged at the discharge hole. Before the forming starts, the latch is pushed outward to expose the discharge hole, and the glass liquid will flow downward from the discharge hole, and the device (such as a transfer device) below the forming mold can recover the flowing glass liquid. After the forming officially starts, the latch is pushed to the center to close the discharge hole and cut off the glass flow, and at the same time, the glass liquid accumulates at the bottom of the forming mold and flows outward. In other words, the above-mentioned discharge hole can discharge the waste glass liquid before the forming starts. In the present example, by reasonably adjusting the position between the forming switching device and the second forming mold 30, when the forming switching device passes through the area where the discharge pipe 10 is located, the outlet of the discharge pipe 10 is aligned with the discharge hole of the second forming mold 30, that is, the glass liquid flowing out of the discharge pipe 10 flows into the discharge hole, thereby effectively avoiding the glass block falling onto the low mold or the side mold of the second forming mold 30 to form a contact interface defect, thereby improving the stress uniformity of the glass block in the subsequent annealing process, and effectively reducing the glass block explosion.

[0076] The support base 510 in the present example mainly provides a support base for the entire forming switching device. The receiving structure 520 can be directly fixed on the support base 510, or indirectly arranged on the support base 510 through other devices (such as the cooling structure 540 described below), which is not limited herein. Of course, a lifting assembly can be arranged in the support base 510 to adjust the height of the flow-cutting structure 530 and the receiving structure 520, so as to achieve the purpose of cutting off the glass block column at any height by the flow-cutting structure 530. The specific structure of the lifting assembly is not limited herein, and can be an electric control telescopic rod, a hydraulic telescopic rod, a pneumatic telescopic rod, a cross-type elevator, etc.

[0077] In addition, the length of the receiving groove 521 of the receiving structure 520 in the present example along the first direction can be designed according to the size of the forming mold along the first direction and the size of the support base 510, which is not limited herein.

[0078] In addition, the flow-cutting structure 530 in the present example can be manufactured separately from the receiving structure 520 and fixedly connected by welding, bolts, etc. Alternatively, the flow-cutting structure 530 can be an inclined plate at one end of the receiving structure 520 and integrally formed with the receiving structure 520. When the above-mentioned inclined plate cuts off the glass block column, the glass liquid flowing out of the discharge port will directly enter the receiving groove 521, but the specific limitation is not made. The specific structure of the flow-cutting structure 530 and the receiving structure 520 can be understood with reference to the examples described below.

[0079] The cut-off structure 530 can be arranged at one end of the material receiving structure 520, for example, at the front end of the material receiving structure 520. This arrangement is suitable for the case where the forming switching device returns to the rear of the second forming die 30 after the switching between the first forming die 20 and the second forming die 30 is completed, and then continues to switch between the second forming die 30 and a subsequent forming die. Of course, the cut-off structure 530 can also be arranged at the opposite ends of the material receiving structure 520. This arrangement is also suitable for the above-mentioned scenario, that is, when the forming switching device returns to the rear of the second forming die 30, the direction of the forming switching device does not need to be adjusted, and the purpose of cutting off the glass column by the cut-off structure 530 can be achieved. In addition, the cut-off structure 530 arranged at the two ends of the material receiving structure 520 can move back and forth in the first direction, thereby achieving switching between different forming dies located at the two ends of the forming switching device.

[0080] In the present application, the forming switching device located between the plurality of forming dies achieves rapid and effective switching between the plurality of forming dies, effectively solving the problems of glass surface defects and poor forming quality in the traditional switching mode. The glass column is cut off by the cut-off structure 530, which can avoid the adverse effects of the glass column on the formed glass during the switching process, thereby improving the glass forming quality. The material receiving structure 520 can collect the glass liquid on one hand to prevent the glass liquid from being scattered randomly and ensure the safety and orderliness of the production process, and on the other hand can adjust the relative position with the to-be-formed die to ensure that the glass liquid flowing out of the discharge pipe 10 flows to the preset position (discharge hole) of the to-be-formed die after the material receiving structure 520 leaves the area where the discharge pipe 10 is located, thereby effectively avoiding the glass column from falling onto the low die or the side die of the second forming die 30 to form a contact interface defect, and further improving the stress uniformity of the glass block during the subsequent annealing process, thereby effectively reducing the glass block cracking. The forming switching device provided in the present application significantly reduces the operation difficulty of the forming die switching, and greatly improves the glass quality problem caused by the die switching.

[0081] In the following, the forming switching device provided in the present application will be described in detail with reference to the accompanying drawings. Figure 1 - The accompanying drawings illustrate embodiments of the present application. Figure 10 The specific structure of the forming switching device provided in the present application will be introduced.

[0082] As shown in FIG. 1, the forming switching device includes a support base 510, a material receiving structure 520, a cut-off structure 530, and a cooling structure 540. Figure 1 The cooling structure 540 is arranged on the support base 510 and in contact with the material receiving structure 520 and the cut-off structure 530.

[0083] Specifically, the cooling structure 540 can be arranged at the outer periphery of the receiving structure 520, for example, at the area outside the bottom and sidewall of the accommodating groove 521, so as to timely dissipate heat from the receiving structure 520 when the glass liquid is accumulated in the accommodating groove 521, thereby reducing the deformation of the receiving structure 520 caused by heat. Similarly, the cooling structure 540 can also be arranged at the outer periphery of the intercepting structure 530, so as to reduce the deformation of the intercepting structure 530 caused by the contact with the glass liquid.

[0084] The cooling structure 540 can be fixed on the support base 510 and tightly contact with the receiving structure 520 by means of bonding, nesting, etc., so as to exchange heat with the receiving structure 520 and the intercepting structure 530, thereby ensuring the effective heat transfer.

[0085] The cooling structure 540 can be cooled by liquid cooling (usually cooling water) or the like, which is not limited herein. When the receiving structure 520 and the intercepting structure 530 contact with the high-temperature glass liquid, the heat is rapidly transferred to the cooling structure 540, and the cooling liquid in the cooling structure 540 continuously absorbs heat during the flow process, thereby reducing the temperature of the receiving structure 520 and the intercepting structure 530 to maintain within a reasonable range, so as to prevent the deformation and damage of the components caused by high temperature. The arrangement of the cooling structure 540 can not only improve the service life of the forming switching device, but also prevent the glass liquid from being scattered randomly, thereby ensuring the safety and orderliness of the production process, improving the success rate and efficiency of the forming die switching, and achieving the stable and safe operation of the entire glass block forming system. Of course, the specific structure of the cooling structure 540 can be understood with reference to the following examples.

[0086] As shown in Figures 4 to 6 , it is a position schematic view of the receiving structure and the intercepting structure according to some embodiments of the present application. Figure 4 It is a top view schematic view of the receiving structure and the intercepting structure according to some embodiments of the present application. Figure 5 It is a top view schematic view of the receiving structure and the intercepting structure according to some embodiments of the present application. Figure 6 It is a sectional view structure schematic view of A-A direction in Figure 5 . In some embodiments, the receiving structure 520 includes a receiving box, and the receiving box is formed with an accommodating groove 521; the sidewall adjacent to the intercepting structure 530 of the receiving box is provided with a flow guide notch 522.

[0087] Specifically, the receiving box in the example can have a rectangular structure, for example, designed as a long strip extending along the first direction. The receiving box can be composed of four side plates and a bottom plate, and the four side plates and the bottom plate jointly form the above-mentioned accommodating groove 521. The side plate of the receiving box close to the intercepting structure 530 is configured with a flow guide notch 522, that is, a notch formed on the side plate, which is arranged to facilitate the overflow of the glass liquid when the glass liquid flows from the intercepting structure 530 into the receiving box. The shape and size of the specific flow guide notch 522 are not limited here, but it is necessary to ensure that the glass liquid can flow from the intercepting structure 530 into the accommodating groove 521 of the receiving box.

[0088] When the intercepting structure 530 intercepts the glass material column, the glass liquid first falls into the intercepting structure 530, and as the forming switching device moves, the glass liquid flows into the accommodating groove 521 of the receiving box through the flow guide notch 522, avoiding the overflow of the glass liquid at the intercepting structure 530 and other problems. This arrangement can improve the safety and stability of glass liquid collection.

[0089] As shown in Figure 4 In some embodiments, the intercepting structure 530 is configured with an intercepting groove 531, which is in communication with the accommodating groove 521 through the flow guide notch 522; the intercepting structure 530 is provided with an intercepting plate 532 on the side away from the receiving box, the bottom end of the intercepting plate 532 is arranged close to the bottom of the receiving box, and the top end of the intercepting plate 532 is inclined to the side away from the receiving box.

[0090] Specifically, the intercepting groove 531 is used to temporarily store the glass liquid that continues to flow out of the discharge pipe 10 after the glass material column is intercepted, and the intercepting plate 532 is mainly used to intercept the glass material column. In one example, the intercepting plate 532 has an angle with the first direction of between 15°-75°. Specifically, when the forming switching device moves downwardly to the discharge pipe 10, the intercepting plate 532 first contacts the glass material column and quickly intercepts the glass material column by using its inclined angle and position. This arrangement can efficiently intercept the glass material column, and on the other hand, it is beneficial for the glass material column that flows out of the discharge pipe 10 after being intercepted to smoothly enter the receiving box, avoiding the problem of the glass material column falling into the forming mold. Further, the top end of the intercepting plate 532 can be designed as a horizontal plane, but no specific limitation is made. In actual production, the best angle can be selected by experiment or simulation analysis according to factors such as the flow rate, flow volume of the glass liquid, and the height of the glass material column. For example, when the flow rate of the glass liquid is fast, the above-mentioned angle can be appropriately increased to enhance the intercepting effect. In the example, the angle of the intercepting plate 532 with the first direction (which can also refer to the horizontal plane) can be 15°, 20°, 50°, 60°, 75°, etc., which is not limited here.

[0091] As shown in Figure 4As shown, in some embodiments, the intercepting structure 530 further comprises two side plates 533 connected with the intercepting plate 532, and a cooling plate 534 connecting the two side plates 533, the two side plates 533, the cooling plate 534 and the intercepting plate 532 jointly form the intercepting groove 531; in the first direction, the projection of the two side plates 533 coincides with the projection of the cooling structure 540; the cooling plate 534 is in adaptive contact with the cooling structure 540.

[0092] Specifically, the top of the cooling plate 534 can be designed as a concave structure to correspond to the flow guide notch 522 of the above-mentioned material receiving box, that is, the upper surface of the cooling plate 534 is flush with the upper surface at the flow guide notch 522 of the adjacent material receiving box.

[0093] Wherein, the plate surface of the cooling plate 534 is arranged in the vertical direction, and the side plates 533 are designed as triangles connecting the cooling plate 534 and the intercepting plate 532, so that the shape of the intercepting groove 531 formed by the two side plates 533, the cooling plate 534 and the intercepting plate 532 is a triangular prism.

[0094] The outer side wall of the cooling plate 534 is in contact with and connected to the cooling structure 540, and the height of the triangularly designed side plate 533 is consistent with the height of the cooling structure 540, which can ensure that the intercepting structure 530 has sufficient mechanical strength to reduce the deformation amount of the intercepting structure 530 during use.

[0095] Of course, the height of the cooling structure 540 in contact with the cooling plate 534 should also be lower than the height of the cooling plate 534, or flush with the upper surface of the cooling plate 534, and during use of the forming switching device, the cooling plate 534 can transfer the heat in the intercepting groove 531 to the cooling structure 540 to reduce the temperature of the intercepting groove 531, reduce the deformation of the intercepting groove 531 caused by high temperature, and improve the reliability and service life of the equipment.

[0096] As shown, Figures 7 to 9 As shown, Figure 7 The position schematic view of the cooling structure and the intercepting structure according to some embodiments of the present application. Figure 8 The front view schematic view of the cooling structure and the intercepting structure according to some embodiments of the present application. Figure 9 As Figure 8 The cross-sectional structure schematic view of B-B direction. In some embodiments, the cooling structure 540 comprises a hollow cooling frame 541, the material receiving box is arranged in the cooling frame 541, the inner wall surface of the cooling frame 541 is in contact with the outer wall surface of the material receiving box; part of the outer wall surface of the cooling frame 541 is in contact with the outer wall surface of the intercepting structure 530; wherein, part of the cooling frame 541 between the material receiving box and the intercepting structure 530 is constructed with a relief notch 5413.

[0097] Specifically, in order to adapt to the above-mentioned rectangular material receiving box, the cooling frame 541 in this example can be designed in a U-shape, but there is no specific restriction. The material receiving box is located in the hollow area of ​​the cooling frame 541 and is fastened to the cooling frame 541. The connection method can be welding, bolt connection, etc. The inner wall surface of the cooling frame 541 is in close contact with the outer wall surface of the material receiving box, and the part of the cooling frame 541 facing the intercepting structure 530 is in contact with the outer wall surface of the intercepting structure 530. In order to adapt to the guide notch 522 of the above-mentioned material receiving box and the concave structure of the cooling plate 534 in the intercepting structure 530, this part of the cooling frame 541 is constructed with an avoidance notch 5413 so that the upper surface of this part of the cooling frame 541 is flush with the upper surface of the material receiving box and the cooling plate 534.

[0098] It should be noted that the heat dissipation method of the cooling frame 541 provided in this example can be liquid cooling with a fluid channel inside, heat dissipation by a heat pipe, heat dissipation by a heat dissipation coating, or heat dissipation by thermoelectric refrigeration. The specific heat dissipation method is not limited here.

[0099] In this example, when the material receiving box and the intercepting structure 530 come into contact with the high-temperature glass liquid, the heat is transferred to the cooling frame 541. The cooling frame 541 realizes heat exchange through any of the above-mentioned heat dissipation methods, thereby effectively cooling the material receiving box and the intercepting structure 530 and reducing the deformation of the two.

[0100] like Figure 7 、 Figure 9 As shown, in some embodiments, the cooling frame 541 is constructed with an annular fluid channel, and a liquid inlet 5411 and a liquid outlet 5412 are provided on the side wall of the cooling frame 541 extending along the first direction; wherein, an isolation plate 5419 is provided in the fluid channel between the liquid inlet 5411 and the liquid outlet 5412, and the liquid inlet 5411 is provided close to the intercepting structure 530.

[0101] Specifically, the fluid channel has the same shape as the cooling frame 541, for example, it also has a U-shaped design. To facilitate the delivery of coolant into the fluid channel, a liquid inlet 5411 and a liquid outlet 5412 are provided on the sidewalls of the cooling frame 541. A partition 5419 is provided between the liquid inlet 5411 and the liquid outlet 5412, allowing the fluid channel to function as a one-way flow channel.

[0102] To clearly understand the structure of the cooling frame 541, the present example takes an example of only one cut-off structure 530 being provided at one end of the material receiving structure 520, and defines the back-shaped fluid passage from the liquid inlet 5411 to the liquid outlet 5412 as including a first cooling passage 5414, a second cooling passage 5415, a third cooling passage 5416, a fourth cooling passage 5417, and a fifth cooling passage 5418, wherein the first cooling passage 5414, the second cooling passage 5415, the third cooling passage 5416, the fourth cooling passage 5417, and the fifth cooling passage 5418 are sequentially connected, the first cooling passage 5414 is connected with the liquid inlet 5411, the fifth cooling passage 5418 is connected with the liquid outlet 5412, and a partition is used to separate the cooling liquid in the first cooling passage 5414 and the fifth cooling passage 5418, so as to ensure that the cooling liquid enters the first cooling passage 5414 first after entering the liquid inlet 5411, and then sequentially passes through the second cooling passage 5415, the third cooling passage 5416, the fourth cooling passage 5417, and the fifth cooling passage 5418, and finally is discharged from the liquid outlet 5412, so that the flow of the cooling liquid in the fluid passage forms a unidirectional cooling flow.

[0103] In order to reduce the local resistance loss of the cooling liquid at the liquid inlet 5411 and the liquid outlet 5412, in one example, the diameters of the liquid inlet 5411 and the liquid outlet 5412 are 6mm-25mm; in order to ensure the cooling effect of the cooling liquid in the cooling frame 541, in one example, the inner diameters of the first cooling passage 5414, the second cooling passage 5415, the third cooling passage 5416, the fourth cooling passage 5417, and the fifth cooling passage 5418 are within the range of 6mm-100mm.

[0104] When working, the heat of the material receiving box can be quickly transferred to the surface of the cooling frame 541 through the connection position, and finally the heat is quickly exchanged through the unidirectional flow of the cooling liquid in the first cooling passage 5414, the second cooling passage 5415, the third cooling passage 5416, the fourth cooling passage 5417, and the fifth cooling passage 5418, so as to ensure that the surface temperature of the cooling frame 541 and the material receiving box is controlled. In an example, the temperature of the connection part of the material receiving box and the cooling frame 541 is controlled to be within 800℃, and of course, it can be controlled to be within 600℃, so that the overall thermal deformation of the cooling frame 541 and the material receiving box is controlled to be within 5%.

[0105] In addition, the second cooling channel 5415 is connected to the cooling plate 534. When the intercepting structure 530 is in contact with the high-temperature glass liquid, the temperature of the intercepting structure 530 rapidly rises. The heat of the intercepting structure 530 can be rapidly transferred to the surface of the cooling frame 541 through the cooling plate 534, and finally through heat exchange of the cooling liquid, so that the temperature of the intercepting structure can be controlled within 800°C, and the thermal deformation of the intercepting structure 530 can be controlled within 5%. The total height of the second cooling channel 5415 is 0.5-0.75 times the height of the remaining cooling channels, so as to ensure that the height of the cooling frame 541 is consistent with the height of the flow guide notch 522 of the receiving box and the cooling plate 534, and prevent the glass liquid from overflowing the edge of the cooling frame 541 due to excessive flow of the glass liquid during use of the forming switching device, thereby causing safety problems. In an example, the overall deformation of the cooling frame 541 during normal operation is not more than 5%, and the deformation of the cooling frame 541 can be controlled to be less than 3%.

[0106] In order to ensure the cooling effect of the cooling liquid in the cooling frame 541 and facilitate subsequent collection and reuse of the glass, the cooling water is preferably used as the cooling liquid of the cooling frame 541. In order to reduce the adverse effects of vaporization of the cooling liquid during use of the cooling frame 541, the temperature of the cooling liquid before entering the first cooling channel 5414 can be controlled to be not more than 30°C, and the temperature of the cooling liquid can be controlled to be within 20°C. In order to ensure the dynamic adjustment of the flow of the cooling liquid, the pressure of the cooling liquid before entering the first cooling channel 5414 can be controlled to be 0.3-0.5 MPa, so as to ensure that the cooling capacity of the one-way circulation of the cooling liquid meets the cooling requirements of the cooling frame 541.

[0107] Since the fluid channel is arranged around the receiving box, the heat of the glass liquid in the receiving box can be rapidly transferred to the cooling frame 541 through the side plate of the receiving box, and the heat is finally taken away by the cooling liquid flowing in the cooling frame 541, so as to ensure that the overall deformation of the receiving box during use is within 5%.

[0108] Of course, the cooling frame 541 in the example can also be arranged at the bottom of the receiving box to achieve heat dissipation of the bottom of the receiving box.

[0109] In addition to the above-mentioned arrangement of the cooling frame 541 at the bottom of the receiving box, the cooling frame 541 can also be arranged at the bottom of the receiving box, as shown in FIG. 5B. Figure 3 As shown in FIG. 5B, in some embodiments, the forming switching device further comprises a heat preservation structure 560 arranged in the accommodating groove 521. The thickness of the heat preservation structure 560 is less than or equal to 0.5 times the depth of the accommodating groove 521.

[0110] Specifically, the insulation structure 560 can be an insulation layer, which can be spread flat in the receiving groove 521. When the material receiving box is working, the glass liquid flowing out of the discharge pipe 10 will directly fall on the upper surface of the insulation layer, thereby reducing the thermal shock of the high-temperature glass liquid on the bottom plate of the material receiving box and preventing local deformation of the bottom plate.

[0111] To improve the use effect of the insulation layer, the material and thickness of the insulation layer can be reasonably selected to achieve the effect of quickly flattening the glass and preventing the bottom surface of the material box from thermal deformation. The insulation layer in this example can be made of porous lightweight refractory material. In one example, the refractory material has a bulk density of 0.2 g / cm 3 -1.0g / cm 3 For example, you can choose a material with a bulk density of 0.2g / cm 3 -0.6g / cm 3 To achieve better insulation, in one example, the thermal conductivity of the insulation material is 0.1-2.0 W / (m·°C) at 600°C to 1450°C, and the thermal conductivity of the refractory material is 0.1-1.0 W / (m·°C).

[0112] In addition, to control the temperature of the bottom surface of the material receiving box, in one example, the thickness of the insulation layer is controlled between 10-100 mm, and the height of the insulation structure 560 shall not exceed 0.5 times the depth of the material receiving box receiving groove 521. However, it should not be too thin, as this will increase the heat dissipation of the glass liquid in contact with the upper surface of the insulation layer, causing the bottom surface temperature of the material receiving box to rise rapidly and resulting in local deformation. On the other hand, if the insulation layer is too thick, it will increase the overall weight of the material receiving box. On the one hand, it may cause the received glass liquid to fall out of the material receiving box during use, posing an operational safety hazard. On the other hand, when cutting the glass material column, the length of the column needs to be increased. When cutting the glass material column, the free glass column may fall off, resulting in increased product defects on the product surface.

[0113] like Figure 10 As shown, Figure 10 This figure illustrates the structure of a support base and travel assembly according to some embodiments of the present application. In some embodiments, the support base 510 includes a plurality of lifting rods 511 and crossbars 512 disposed at the ends of the lifting rods 511. The crossbars 512 support the cooling structure 540. Driven by a drive mechanism, the lifting rods 511 raise and lower the cooling structure 540, the material receiving structure 520, and the intercepting structure 530.

[0114] Specifically, to adjust the height position of the forming switching device, the support base 510 includes a plurality of lifting rods 511, for example, four lifting rods 511, and two cross beams arranged at the top of the lifting rods 511, the surface of the cross beams being used to connect with the cooling frame 541. The lifting rods 511 can be used to adjust the height of the cross beams and the cooling structure 540, the receiving structure 520 and the cutting-off structure 530 thereon, so as to ensure that the overall height of the forming switching device is adapted to the discharge pipe 10. For example, the distance between the lower opening of the discharge pipe 10 and the upper surface of the cooling frame 541 is within the range of 10mm-100mm, which can ensure that the glass liquid flowing out of the subsequent discharge pipe 10 is smoothly received while the glass material column is normally cut off, and ensure that no air bubble is rolled into the glass material column when it falls to the free surface of the glass liquid in the forming mold, so that no glass contact interface is generated, and finally the internal quality of the glass after forming is not significantly changed.

[0115] It should be noted that the lifting rods 511 in the example can be driven by electricity, air cylinder, hydraulic pressure, etc. Of course, the lifting rods 511 can also be arranged as cross lifting rods 511, which is not limited here. In addition, the support base 510 is in a relatively low-temperature working environment during the operation of the forming switching device, and therefore the material thereof can be selected from common steel, light aluminum alloy profile, heat-resistant stainless steel and other metal materials.

[0116] The cutting-off structure 530, the receiving structure 520 and the cooling structure 540 are all made of heat-resistant metal materials with high strength, high rigidity, etc., for example, including nickel-chromium alloy materials.

[0117] In addition, to ensure that the cutting-off structure 530 and the receiving box have sufficient mechanical strength when used at high temperature, in one example, the wall thickness of the material used in the structure of the cutting-off structure 530 and the receiving box is 1mm-10mm, for example, the wall thickness of the structure is 2mm-6mm. In one example, the wall thickness of the fluid passage in the cooling frame 541 is 2mm-15mm. To ensure efficient heat exchange between the cooling liquid and each contact surface, the material of the cutting-off structure 530, the cooling frame 541 and the receiving box can be selected from metal materials with a normal-temperature thermal conductivity coefficient not less than 10w / (m﹒K), and preferably metal materials with a normal-temperature thermal conductivity coefficient more than 15w / (m﹒K), which is not limited here.

[0118] As shown in FIG. 5, Figure 10 In some embodiments, the forming switching device further includes a traveling assembly 550 arranged at the bottom of the support base 510 and used to drive the support base 510 to move in a first direction; wherein the first direction is perpendicular to the direction of gravity.

[0119] Specifically, the traveling assembly 550 can be a flat car on which the support base 510 is fixed and moves along the first direction. The flat car in this example can run on a track of the glass forming system and includes two sets of front wheels and two sets of rear wheels. The distance between the front wheels and the rear wheels can be determined according to the length of the cooling frame 541 and the cutoff structure 530 in the first direction. For example, the distance can be 0.3-0.8 times the length of the cooling frame 541 and the cutoff structure 530 in the first direction, so as to stably support the support base 510 and the cooling frame 541 and the cutoff structure 530 and ensure smooth movement on the track, facilitate switching between different forming molds, greatly improve the operability during switching, and improve the safety of glass liquid discharge during mold switching, thereby ensuring smooth production.

[0120] The embodiments of the present application also provide a glass block forming system, which can include the forming switching device, the first forming mold 20, and the second forming mold 30 in the above embodiments. Figure 1 The first forming mold 20 and the second forming mold 30 are respectively located at two ends of the forming switching device along the first direction.

[0121] The forming switching device is used to cut off the glass column flowing out of the discharge pipe 10 above the first forming mold 20 after the first forming mold 20 is formed, and move along the first direction to receive the glass liquid flowing out of the discharge pipe 10 until the discharge pipe 10 is located directly above the discharge hole in the second forming mold 30.

[0122] It can be understood that the glass liquid in the discharge pipe 10 flows downward under the action of gravity, and forms a free column with a certain height after flowing out of the discharge pipe 10. After the free column contacts the bottom mold of the first forming mold 20, it gradually accumulates in the space formed by the bottom mold and the side mold of the first forming mold 20. After the glass liquid reaches the required thickness, the free column needs to be cut off, and the first forming mold 20 moves out of the area where the discharge pipe 10 is located, and the glass block forming is completed.

[0123] Meanwhile, the second forming mold 30 (to-be-formed mold) and the forming switching device are moved towards the area where the discharge pipe 10 is located, and when the intercepting structure 530 contacts the glass liquid free column (glass column) flowing out of the discharge pipe 10, the intercepting structure 530 exerts a cutting force on the glass column, thereby quickly cutting off the glass column between the discharge pipe 10 and the free surface of the glass liquid in the first forming mold 20, that is, the intercepting structure 530 quickly cuts the glass column into two segments, the segment below the intercepting structure 530 slowly falls onto the free surface of the glass in the first forming mold 20 to form a glass block, and since the height of the glass column cut off by the intercepting structure 530 can be controlled, the problem of the contact interface and the air bubbles caused by the contact between the glass block and the free surface of the glass block when the glass column with an excessively high height falls onto the free surface of the glass block at the end of the forming of the first forming mold 20 can be effectively avoided. The glass column above the intercepting structure 530 continues to flow downwards and falls into the accommodating groove 521 of the receiving structure 520, and the glass liquid flowing out of the discharge pipe 10 continuously accumulates in the accommodating groove 521 as the forming switching device continuously moves.

[0124] Then, when the end of the forming switching device passes through the area where the discharge pipe 10 is located, the second forming mold 30 which has been moving along with the forming switching device moves to the area where the discharge pipe 10 is located, that is, when the forming switching device leaves, the glass liquid flowing out of the discharge pipe 10 flows into the discharge hole of the second forming mold 30. Finally, the forming parameters of the second forming mold 30 are adjusted, and after the adjustment is completed, the discharge hole at the bottom of the second forming mold 30 is blocked, and the forming of the glass is started.

[0125] In one example, the glass block forming system further comprises a forming track 40 which extends in the first direction, and the forming switching device can be installed on the forming track 40, that is, the forming switching device can quickly move on the forming track 40, thereby solving the problem of quick switching between two forming molds in the forming process.

[0126] Specifically, the first forming mold 20 and the second forming mold 30 are also arranged on the forming track 40 through the forming trolley 31, that is, the overall operation of the forming switching device is completed on the forming track 40, so that the maneuverability of the glass liquid at the end of the forming is greatly improved. The glass material column is quickly cut off through the intercepting structure 530, and as the forming switching device runs towards the outlet direction of the forming track 40, the glass liquid flowing out of the discharge pipe 10 is dispersed on the intercepting structure 530, the receiving box and the cooling frame 541, so that the safety during the glass liquid discharge during the mold switching is improved. At the same time, the shape deformation problem of the forming switching device caused by heat transfer when the glass liquid contacts the intercepting structure 530, the receiving box and the cooling frame 541 can be greatly reduced through the unidirectional flow of the cooling liquid in the cooling frame 541, so that the mold switching efficiency is effectively improved, and the stable and safe operation of the system is realized.

[0127] Based on the same inventive concept, the embodiment of the present application also provides a glass block forming method applied to the glass block forming system of the above-mentioned embodiment, and the glass block forming method comprises the following steps:

[0128] In step S10, after the forming of the first forming mold 20 is completed, the distance between the forming switching device and the pipe opening of the discharge pipe 10 in the height direction is adjusted, and the cooling structure 540 is started at the same time;

[0129] In step S20, the forming switching device is controlled to move in the first direction, so as to cut off the glass liquid column flowing out of the discharge pipe 10, and collect the glass liquid flowing out of the discharge pipe 10 into the containing groove 521;

[0130] In step S30, the relative position between the second forming mold 30 and the forming switching device is adjusted, so that after the forming switching device leaves the area where the discharge pipe 10 is located, the glass liquid flowing out of the discharge pipe 10 flows into the discharge hole of the second forming mold 30.

[0131] It can be understood that in step S10, the first forming mold 20 is positioned below the discharge pipe 10, the mold forming parameters are adjusted, the preparation work is completed, the first glass block forming of the mold is started, the height of the glass material column between the discharge pipe 10 and the free surface of the glass block is adjusted when the thickness of the glass block reaches the process requirement, the height of the cooling frame 541 of the forming switching device is ensured to be less than the height of the free material column, the height of the upper surface of the forming switching device is adjusted to be within the height range of the glass material column, and the cooling liquid flow of the cooling frame 541 in the forming switching device is ensured to be normal.

[0132] It should be noted that the height of the forming switching device can be accurately adjusted through the lifting rod 511 on the support seat 510 under the action of the driving mechanism, so that the height of the cooling frame 541 is less than the height of the glass material column

[0133] In step S20, the second forming mold 30 to be formed is moved together with the forming switching device to the outlet direction of the forming track 40, and when the glass column is cut off by the stop plate 532, the upper half of the original glass column is located above the upper surface of the forming switching device, and then falls into the stop groove 531, and then the glass liquid is gradually moved from the stop groove 531 to the containing groove 521 of the receiving box.

[0134] In step S30, the position of the second forming mold 30 is adjusted synchronously during the movement of the forming switching device, so that when the tail of the forming switching device passes through the area of the discharge pipe 10, the glass liquid flowing out of the discharge pipe 10 can accurately flow into the discharge hole of the second forming mold 30, and then the forming parameters of the second forming mold 30 are adjusted, the discharge hole is blocked, and the forming of the second glass is started.

[0135] When the forming of the second glass is completed, the forming switching device can be recycled, for example, the forming switching device can be transported to the rear of the second forming mold 30 by a forklift or other tracks, so as to realize the switching between the second forming mold 30 and the subsequent other forming mold.

[0136] In one example, the viscosity of the glass liquid flowing out of the discharge pipe 10 is 900 poise to 3500 poise; in an example, the viscosity of the glass liquid flowing out of the discharge pipe 10 during the forming process is 1200 poise to 2500 poise.

[0137] In one example, the distance between the pipe opening of the discharge pipe 10 and the glass surface in the forming mold before starting is between 20 mm and 200 mm, and in an example, the distance is 50-100 mm.

[0138] It should be noted that the above forming method is suitable for producing large-diameter block glass of low-expansion borosilicate glass, low-expansion microcrystalline glass, radiation-resistant glass, high-uniformity optical glass, and the like, and is particularly suitable for improving the uniformity of glass when forming ultra-large-size block glass with a diameter of 1 meter or more.

[0139] In the present application, by accurately controlling each link, the problems of glass quality in the traditional mold switching process, such as surface defects of glass and uneven internal stress, are effectively solved. The glass forming quality is improved, the rapid switching of multiple forming molds is realized, and the production efficiency is improved.

[0140] 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 combinations of the technical features do not exist, they should be considered as the scope of the description.

[0141] 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. A molding switching device, characterized in that: Used for switching between multiple forming dies; The molding switching device includes: Support seat; A material receiving structure is provided on the support seat, wherein the material receiving structure is provided with a receiving groove, and the receiving groove is used to collect the glass liquid flowing out of the discharge pipe; a cut-off structure, provided at at least one end of the material receiving structure along the first direction, the cut-off structure being at least used to cut off the glass material column flowing out of the discharge pipe; The molding switching device moves relative to the discharge pipe along the first direction to assist the formed molding die in cutting off the glass material column, and moves along the first direction to receive the glass liquid flowing out of the discharge pipe until the glass liquid in the discharge pipe flows into a preset position of the molding die to be molded; The material receiving structure includes a material receiving box, and the material receiving box is formed with the accommodating groove; the side wall of the material receiving box adjacent to the intercepting structure is provided with a flow guide notch; The intercepting structure is configured with an intercepting groove, and the intercepting groove is connected to the containing groove through the guide notch; The intercepting structure is provided with an intercepting plate on a side away from the material receiving box, the bottom end of the intercepting plate is arranged close to the bottom of the material receiving box, and the top end of the intercepting plate is inclined toward the side away from the material receiving box.

2. The molding switching device according to claim 1, characterized in that: The molding switching device further includes a cooling structure, which is disposed on the support seat and is in contact with the material receiving structure and the intercepting structure.

3. The molding switching device according to claim 2, characterized in that: The intercepting structure further includes two side plates connected to the intercepting plate, and a cooling plate connected to the two side plates, wherein the two side plates, the cooling plate and the intercepting plate together form the intercepting groove; Along the first direction, the projections of the two side plates coincide with the projection of the cooling structure; the cooling plates are in adaptive contact with the cooling structure; And / or, the angle between the intercepting plate and the first direction is between 15° and 75°.

4. The molding switching device according to claim 3, characterized in that: The cooling structure includes a hollow cooling frame, the material receiving box is arranged in the cooling frame, the inner wall surface of the cooling frame contacts the outer wall surface of the material receiving box; part of the outer avoidance surface of the cooling frame contacts the outer avoidance surface of the intercepting structure; Wherein, a portion of the cooling frame located between the material receiving box and the intercepting structure is constructed with an avoidance gap.

5. The molding switching device according to claim 4, characterized in that: The cooling frame is configured with an annular fluid channel, and a liquid inlet and a liquid outlet are provided on a side wall of the cooling frame extending along the first direction; Wherein, an isolation plate is provided in the fluid channel between the liquid inlet and the liquid outlet, and the liquid inlet is provided close to the intercepting structure.

6. The molding switching device according to any one of claims 1 to 3, characterized in that: The molding switching device further includes a heat preservation structure, and the heat preservation structure is arranged in the receiving tank; Wherein, the thickness of the heat-insulating structure is less than or equal to 0.5 times the depth of the accommodating groove.

7. The molding switching device according to claim 2 or 3, characterized in that: The support base includes a plurality of lifting rods and a cross bar provided at the end of the lifting rods, wherein the cross bar is used to support the cooling structure; the lifting rods are driven by a driving mechanism to drive the cooling structure, the material receiving structure and the intercepting structure to rise or fall; The molding switching device further includes a moving assembly, which is disposed at the bottom of the support base and is used to drive the support base to move along the first direction; The first direction is perpendicular to the direction of gravity.

8. A glass block forming system, characterized in that: comprising the molding switching device according to any one of claims 1 to 7; and a first molding die and a second molding die, wherein the first molding die and the second molding die are respectively located at two ends of the molding switching device along a first direction; The molding switching device is used to cut off the glass material column flowing out of the discharge pipe located above the first molding mold after molding by the first molding mold, and move along the first direction to receive the glass liquid flowing out of the discharge pipe until the discharge pipe is located directly above the discharge hole in the second molding mold.

9. A method for forming a glass block, characterized in that: Applicable to the glass block forming system of claim 8, the glass block forming method comprising: After the first forming mold is formed, the distance between the forming switching device and the nozzle of the discharge pipe in the height direction is adjusted, and the cooling structure is started at the same time; Controlling the molding switching device to move along a first direction to cut off the glass liquid column flowing out of the discharge pipe and collect the glass liquid flowing out of the discharge pipe into the holding tank; The relative positions of the second molding die and the molding switching device are adjusted so that after the molding switching device leaves the area where the discharge pipe is located, the glass liquid flowing out of the discharge pipe flows into the discharge hole of the second molding die.

Images