Molding switching device and glass block molding system and method

Abstract

The invention relates to a forming switching device and a glass block forming system and method. The forming switching device comprises a supporting base. The material receiving structure is arranged on the supporting seat, and a containing groove is formed in the material receiving structure and used for collecting molten glass flowing out of the discharging pipe; the cut-off structure is arranged at at least one end, in the first direction, of the material receiving structure, and the cut-off structure is at least used for cutting off the frit column flowing out of the discharging pipe; the forming switching device moves relative to the discharging pipe in the first direction so as to assist the formed forming mold to cut off the frit column and moves in the first direction so as to receive the molten glass flowing out of the discharging pipe till the molten glass in the discharging pipe flows into the preset position of the forming mold to be formed. According to the molding switching device provided by the invention, the operation difficulty of molding mold switching is remarkably reduced, and the glass quality problem caused by mold switching is greatly improved.

Description

Technical Field

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

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

[0003] At present, the molding method for producing large-diameter block glass mainly adopts the method of casting and molding glass blocks. In the casting molding method, the glass liquid in the discharge pipe flows downward and fills the internal space of the customized mold to complete the molding of the required glass block, and then the mold and the molded glass liquid are transferred to the next link, and the next mold enters the bottom of the discharge pipe to start the casting molding of another glass block. The above molding method involves the switching process of two molding molds.

[0004] In the traditional production process, there are mainly two switching processing methods. The first is the direct switching method. Specifically, after the first mold is formed, the mold is directly moved from the bottom of the discharge pipe to the next process, and then the second mold is placed under the discharge pipe to start forming the second mold. This switching method is prone to the following problems. Because the glass liquid in the discharge pipe continues to flow during the switching process, the surface of the first piece of glass that has been formed is prone to defects. In the early stage of the second mold, the instability caused by the switching is prone to poor quality of the bottom molded glass, affecting the material utilization rate. The second is the indirect switching method. Specifically, after the first mold is formed, the glass liquid that continues to flow out of the discharge pipe is caught by a material spoon, and then the mold is moved from the bottom of the discharge pipe to the next process, and then the second mold is placed under the discharge pipe to start forming the second mold. This switching method is prone to the following problems. It is easily restricted by flow. When a large flow rate (for example, more than 100L / h) of glass flow is used for forming, it is difficult to stably complete the mold switching due to the limited space of the material spoon and the force, which leads to greater difficulty in operation and reduced control accuracy. Summary of the invention

[0005] Based on this, it is necessary to provide a molding switching device, a glass block molding system and method to address the glass quality problems existing in the traditional mold switching process, such as glass surface defects, uneven internal stress, etc.

[0006] In a first aspect, an embodiment of the present application provides a molding switching device for switching between multiple molding dies; the molding switching device comprises:

[0007] Support seat;

[0008] A material receiving structure, arranged 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;

[0009] A cut-off structure, disposed at at least one end of the material receiving structure along the first direction, the cut-off structure at least being used to cut off the glass material column flowing out of the discharge pipe;

[0010] Among them, the molding switching device moves along the first direction relative to the discharge pipe to assist the formed molding mold to cut 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 the preset position of the molding mold to be molded.

[0011] In one of the embodiments, 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.

[0012] In one embodiment, the material receiving structure includes a material receiving box, and the material receiving box is formed with the receiving groove;

[0013] A flow guiding notch is formed on the side wall of the material receiving box adjacent to the flow intercepting structure.

[0014] In one embodiment, the intercepting structure is configured with an intercepting groove, and the intercepting groove is connected with the containing groove through the guide notch;

[0015] 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.

[0016] In one embodiment, the included angle between the intercepting plate and the first direction is between 15° and 75°.

[0017] In one embodiment, the intercepting structure further includes two side plates connected to the intercepting plate, and a cooling plate connected to the two side plates, and the two side plates, the cooling plate and the intercepting plate together form the intercepting groove;

[0018] Along the first direction, the projections of the two side plates coincide with the projection of the cooling structure;

[0019] The cooling plate is adapted to contact the cooling structure.

[0020] In one embodiment, the cooling structure comprises a cooling frame of a hollow structure, 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;

[0021] Wherein, a portion of the cooling frame located between the material receiving box and the intercepting structure is provided with an avoidance gap.

[0022] In one embodiment, 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;

[0023] Wherein, an isolation plate is arranged in the fluid channel between the liquid inlet and the liquid outlet, and the liquid inlet is arranged close to the intercepting structure.

[0024] In one of the embodiments, the molding switching device further includes a heat preservation structure, and the heat preservation structure is disposed in the containing tank;

[0025] Wherein, the thickness of the thermal insulation structure is less than or equal to 0.5 times the depth of the containing groove.

[0026] In one embodiment, the support base includes a plurality of lifting rods and a cross bar disposed at the ends of the lifting rods, and the cross bar is used to support the cooling structure;

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

[0028] In one embodiment, the molding switching device further includes a traveling component, which is disposed at the bottom of the support seat and is used to drive the support seat to move along the first direction;

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

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

[0031] 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;

[0032] 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.

[0033] A third aspect of the present application provides a glass block forming method, which is applied to the glass block forming system described in the above embodiment. The glass block forming method includes:

[0034] After the first molding die is finished molding, the distance between the molding 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;

[0035] 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 collecting the glass liquid flowing out of the discharge pipe into the containing tank;

[0036] 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.

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

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

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

[0040] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure along the AA direction.

[0041] Figure 4This is a schematic diagram of the positions of the material connection structure and the interception structure provided according to some embodiments of the present application.

[0042] Figure 5 It is a schematic top view of a material connection structure and a flow interception structure provided according to some embodiments of the present application.

[0043] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure along the AA direction.

[0044] Figure 7 This is a schematic diagram of the positions of cooling structures and shut-off structures provided according to some embodiments of the present application.

[0045] Figure 8 It is a front view schematic diagram of a cooling structure and a shut-off structure provided according to some embodiments of the present application.

[0046] Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure along the BB direction.

[0047] Fig.10 This is a schematic diagram of the structure of a support base and a travel assembly provided according to some embodiments of the present application.

[0048] Figure Number:

[0049] 10. Discharging pipe; 20. First molding die; 30. Second molding die; 31. Molding trolley; 40. Molding track;

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

[0051] 520, material connection structure; 521, receiving groove; 522, flow guide notch;

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

[0053] 540, cooling structure; 541, cooling frame; 5413, avoidance gap; 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, travel assembly;

[0055] 560. Thermal insulation structure. DETAILED DESCRIPTION

[0056] 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.

[0057] 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.

[0058] 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.

[0059] 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.

[0060] 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.

[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 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.

[0062] As described in the background technology section, the switching method of multiple molding models used in the related art is likely to cause defects on the surface of the glass that has been molded, the quality of the molded glass at the bottom of the molding mold to be molded is poor, and it is difficult to stably complete the mold switching. The inventor found that the reason for the above phenomenon is that in order to meet the high quality requirements of glass blocks in the fields of 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, thereby affecting 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 under a certain temperature and fluidity state to ensure the molding quality. If the glass liquid is stopped from flowing, the temperature and fluidity of the glass liquid may change when it is restarted, and it is difficult to ensure that the glass liquid is in the best molding state each time it is cast, which is easy to affect the consistency and stability of the glass block, and it will increase production time and cost, reduce production efficiency, and is not conducive to large-scale production.

[0063] However, in the glass production process, especially when large-diameter block glass is produced by casting, it usually involves the molding of multiple glass blocks. At the beginning of molding, the molten glass liquid is first gradually transferred from the melting equipment to the discharge pipe, and then the glass liquid is transported to the molding mold through the discharge pipe to be molded into glass blocks; when the molding of the first glass block is completed, it is necessary to switch to the next molding mold to continue the molding of the glass block until the process target is achieved and the molding is terminated.

[0064] The above-mentioned switching methods mainly include two types. The first is the direct switching method. This switching method is prone to the following problems: because the glass liquid in the discharge pipe continues to flow during the switching process, defects are likely to occur on the surface of the first piece of glass that has been completed; and the instability caused by the switching of the second mold in the early stage of molding is likely to cause poor quality of the bottom molded glass, affecting material utilization. The second is the indirect switching method. This switching method is prone to the following problems: it is easily restricted by flow rate. When a large flow rate (for example, more than 100L / h) of glass flow is used for molding, it is difficult to stably complete the mold switching due to limited space and force of the material spoon, resulting in greater difficulty in operation and reduced control accuracy.

[0065] Based on the above technical problems, the inventors have found that by providing a molding switching device placed between the two molding molds, the first molding mold can be assisted to switch to the second molding mold after molding is completed. Based on this, the inventors have further studied the technical solution of the embodiment of the present application. Specifically, the molding switching device provided in the embodiment of the present application includes a support seat; a material receiving structure, which is arranged on the support seat, and the material receiving structure is configured 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, which is arranged at least at one end of the material receiving structure along the first direction, and the cut-off structure is at least used to cut off the glass material column flowing out of the discharge pipe; wherein the molding switching device moves relative to the discharge pipe along the first direction to assist the formed molding mold to cut 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 the preset position of the molding mold to be formed. 。

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

[0067] The above is the core idea of ​​this application. The technical solutions in the embodiments of this application will be described clearly and completely below in conjunction with the drawings in the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0068] See also Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the overall structure of a molding switching device provided according to some embodiments of the present application. Figure 2It is a schematic diagram of the top view structure of a molding switching device provided according to some embodiments of the present application. Figure 3 for Figure 2 A cross-sectional structural diagram along the AA direction. A molding switching device provided in an embodiment of the present application is used for switching between multiple molding dies; the molding switching device may include a support seat 510 , a material receiving structure 520 and a flow intercepting structure 530 .

[0069] The material receiving structure 520 is arranged on the support seat 510, and the material receiving structure 520 is constructed with a receiving groove 521, and the receiving groove 521 is used to collect the glass liquid flowing out of the discharge pipe 10; the cut-off structure 530 is arranged at at least one end of the material receiving structure 520 along the first direction, and the cut-off structure 530 is at least used to cut off the glass material column flowing out of the discharge pipe 10; wherein, the molding switching device moves along the first direction relative to the discharge pipe 10 to assist the molded molding to cut off the glass material column, 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 molding mold to be molded.

[0070] It can be understood that in order to clearly understand the structure of the molding switching device in this example, the usage scenario of the molding switching device is first introduced. On the glass molding assembly line, the position of the discharge pipe 10 (adjustable in height) remains relatively unchanged, and multiple different molding molds are moved to the bottom of the discharge pipe 10 in turn, thereby achieving the purpose of accumulating the glass liquid flowing out of the discharge pipe 10 in the molding mold.

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

[0072] At the same time, the second molding mold 30 (the molding to be molded) and the molding switching device are moved together toward the area where the discharge pipe 10 is located. When the intercepting structure 530 contacts the free column of glass liquid (glass column) flowing out of the discharge pipe 10, the intercepting structure 530 applies a tangential force to the glass column, thereby quickly cutting off the glass column formed between the discharge pipe 10 and the free surface of the glass liquid in the first molding mold 20. That is, the intercepting structure 530 quickly cuts off the glass column into two sections, an upper section and an lower section. The section of the glass column located under the intercepting structure 530 will slowly fall onto the free surface of the glass in the first molding mold 20 to form a glass block. Since the height of the glass column cut off by the intercepting structure 530 can be controlled, it is effectively avoided that when the excessively high glass column falls to the surface of the glass block at the end of molding in the first molding mold 20, it is easy to generate a contact interface and involve bubbles when contacting the free surface of the glass block, causing glass defects. The glass material column located on the intercepting structure 530 will continue to flow downward and fall into the receiving groove 521 of the receiving structure 520 . As the molding switching device continues to move, the glass liquid flowing out of the discharge pipe 10 continues to accumulate in the receiving groove 521 .

[0073] Next, when the end of the molding switching device passes over the area where the discharge pipe 10 is located, the second molding die 30 that has been following the molding switching device will move to the area where the discharge pipe 10 is located, that is, when the molding switching device leaves, the glass liquid flowing out of the discharge pipe 10 just flows into the discharge hole of the second molding die 30. Finally, by adjusting the molding parameters of the second molding die 30 and sealing the discharge hole at the bottom of the second molding die 30 after the adjustment is completed, the glass is formed.

[0074] The molding switching device provided in this example can be moved out of the area where the discharge pipe 10 is located and then moved back to the tail end of the second molding mold 30 to participate in the rapid switching between the second molding mold 30 and the subsequent molding mold. Of course, multiple molding switching devices can also be provided to realize the switching between adjacent molding molds, which is not limited here.

[0075] It should be noted that each molding mold has a discharge hole at the bottom center, and a latch is provided at the discharge hole. Before molding begins, the latch is pushed outward to expose the discharge hole, and the glass liquid will flow downward from the discharge hole. The device below the molding mold (such as a transfer device) can recover the flowing glass liquid. After the molding officially begins, the latch is pushed toward the center to close the discharge hole and cut off the glass flow. At the same time, the glass liquid accumulates at the bottom of the molding mold and flows divergently around. In other words, the setting of the above-mentioned discharge hole can discharge the waste glass liquid used before the molding begins. In this example, by reasonably adjusting the position between the molding switching device and the second molding mold 30, when the molding switching device passes over 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 molding mold 30, that is, the glass liquid flowing out of the discharge pipe 10 flows into the discharge hole, thereby effectively preventing the glass column from falling onto the low mold or side mold of the second molding 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 bursting of the glass block.

[0076] The support base 510 in this example mainly provides a support base for the entire molding switching device. The material receiving structure 520 can be directly fixed on the support base 510, or can be indirectly set on the support base 510 through other devices (such as the cooling structure 540 described below), which is not limited here. Of course, a lifting component can be set in the support base 510 to adjust the height of the intercepting structure 530 and the material receiving structure 520, so as to achieve the purpose of intercepting the glass material column from any height by the intercepting structure 530. The structure of the specific lifting component is not limited here, and an electric telescopic rod, a hydraulic telescopic rod, a cylinder telescopic rod, a cross-type lifter, etc. can be used.

[0077] In addition, in this example, the length of the receiving groove 521 of the material receiving structure 520 along the first direction can be designed according to the size of the molding die along the first direction and the size of the support seat 510, and is not limited here.

[0078] In addition, the intercepting structure 530 in this example can be manufactured separately from the material receiving structure 520 and fixedly connected by welding, bolts, etc., or the intercepting structure 530 can be an inclined plate at one end of the material receiving structure 520 and formed integrally with the material receiving structure 520. When the inclined plate cuts off the glass material column, the glass liquid flowing out of the discharge port will directly enter the containing tank 521, but no specific limitation is made. The specific structures of the intercepting structure 530 and the material receiving structure 520 can be understood by referring to the following examples.

[0079] Among them, the intercepting structure 530 can be set at one end of the material receiving structure 520, for example, the intercepting structure 530 is set at the front end of the material receiving structure 520. This setting method is suitable for the molding switching device to return to the rear of the second molding mold 30 after completing the switching between the first molding mold 20 and the second molding mold 30, and continue to switch between the second molding mold 30 and the subsequent molding mold. Of course, the intercepting structure 530 can also be set at the opposite ends of the material receiving structure 520. This setting method is also suitable for the above scenario, that is, when the molding switching device returns to the rear of the second molding mold 30, there is no need to adjust the direction of the molding switching device, and the purpose of the intercepting structure 530 cutting off the glass material column can be achieved. In addition, the intercepting structures 530 set at both ends of the material receiving structure 520 can reciprocate in the first direction, so as to realize the switching between different molding molds located at both ends of the molding switching device.

[0080] In the present application, a fast and effective switching between multiple molding molds is realized by a molding switching device located between multiple molding molds, which effectively solves the problems of glass surface defects and poor molding quality existing in the traditional switching method. By using the intercepting structure 530 to cut off the glass material column, the adverse effects of the glass material column on the formed glass during the switching process can be avoided, and the glass molding quality is improved; the material receiving structure 520 can collect the glass liquid on the one hand, prevent the glass liquid from being randomly spilled, and ensure the safety and orderliness of the production process. On the other hand, it can adjust the relative position between the material receiving structure 520 and the mold to be formed to ensure that after the material receiving structure 520 leaves the area where the discharge pipe 10 is located, the glass liquid flowing out of the discharge pipe 10 just flows to the preset position (discharge hole) of the mold to be formed, thereby effectively avoiding the glass material column from falling onto the low mold or side mold of the second molding mold 30 to form a contact interface defect, thereby improving the stress uniformity of the glass block material in the subsequent annealing process, and effectively reducing the explosion of the glass block material. The molding switching device provided by the present application significantly reduces the difficulty of operating the molding mold switching, and greatly improves the glass quality problem caused by the mold switching.

[0081] Below, we will refer to the attached Figure 1 -Attached Fig.10 The specific structure of the molding switching device provided in the embodiment of the present application is introduced.

[0082] like Figure 1 As shown, in some embodiments, the molding switching device further includes a cooling structure 540 , which is disposed on the support seat 510 and is in contact with the material receiving structure 520 and the intercepting structure 530 .

[0083] Specifically, the cooling structure 540 can be arranged at the periphery of the material receiving structure 520, for example, at the bottom of the receiving groove 521 and in the area outside the side wall, so that when the glass liquid is accumulated in the receiving groove 521, the material receiving structure 520 can be promptly cooled to reduce the deformation of the material receiving structure 520 when heated. Similarly, the cooling structure 540 can also be arranged at the periphery of the intercepting structure 530 to reduce the deformation of the intercepting structure 530 when it contacts the glass liquid.

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

[0085] The cooling structure 540 can be implemented by liquid cooling (usually cooling water) and other methods, which are not limited here. When the material receiving structure 520 and the intercepting structure 530 contact the high-temperature glass liquid, the heat is quickly transferred to the cooling structure 540. The coolant in the cooling structure 540 continuously absorbs heat during the flow process, and the temperature of the material receiving structure 520 and the intercepting structure 530 is reduced to maintain within a reasonable range to prevent deformation and damage of components due to high temperature. The setting of the cooling structure 540 can, on the one hand, increase the service life of the molding switching device, and on the other hand, prevent the glass liquid from being randomly spilled, ensure the safety and orderliness of the production process, thereby improving the success rate and efficiency of the molding mold switching, and can also achieve stable and safe operation of the entire glass block molding system. Of course, the specific structure of the cooling structure 540 can be understood with reference to the following examples.

[0086] like Figures 4 to 6 As shown, Figure 4 This is a schematic diagram of the positions of the material connection structure and the interception structure provided according to some embodiments of the present application. Figure 5 It is a schematic top view of a material connection structure and a flow interception structure provided according to some embodiments of the present application. Figure 6 for Figure 5 In some embodiments, the material receiving structure 520 includes a material receiving box, which is formed with a receiving groove 521; and a flow guiding notch 522 is formed on the side wall of the material receiving box adjacent to the intercepting structure 530.

[0087] Specifically, in this example, the material receiving box can be a rectangular structure, for example, designed to be a long strip extending along the first direction. The material receiving box can be composed of four side panels and a bottom panel, and the four side panels and the bottom panel together form the above-mentioned receiving groove 521. A guide notch 522 is constructed on the side panel of the material receiving box close to the intercepting structure 530, that is, a notch formed on the side panel, and the setting of the notch facilitates the overflow of the glass liquid when it enters the material receiving box from the intercepting structure 530. The shape and size of the specific 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 receiving groove 521 of the material receiving box.

[0088] When the intercepting structure 530 cuts off the glass material column, the molten glass first falls into the intercepting structure 530. As the molding switching device moves, the molten glass flows into the receiving groove 521 of the receiving box through the guide gap 522, thereby avoiding overflow of the molten glass at the intercepting structure 530. This arrangement can improve the safety and stability of molten glass collection.

[0089] like Figure 4 As shown, in some embodiments, the intercepting structure 530 is constructed with an intercepting groove 531, which is connected to the accommodating groove 521 through a guide notch 522; the intercepting structure 530 is provided with an intercepting plate 532 on the side facing away from the receiving box, and 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 toward the side facing 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 cut off, and the intercepting plate 532 is mainly used to cut off the glass material column. In order to effectively cut off the glass material column, in one example, the angle between the intercepting plate 532 and the first direction is between 15° and 75°. Specifically, when the molding switching device moves below the discharge pipe 10, the intercepting plate 532 first contacts the glass material column, and uses its inclination angle and position to quickly cut off the glass material column. On the one hand, this setting can efficiently cut off the glass material column, and on the other hand, it is conducive to the glass material column flowing out of the discharge pipe 10 after cutting off to enter the receiving box smoothly, avoiding the problem of the glass material column falling into the molding mold. Further, the top of the intercepting plate 532 can be designed as a horizontal plane, but there is no specific restriction. In actual production, the best angle can be selected through experiments or simulation analysis according to factors such as the flow rate, flow rate, and height of the glass column of the glass liquid. For example, when the flow rate of the glass liquid is fast, the above angle can be appropriately increased to enhance the truncation effect. In this example, the angle between the intercepting plate 532 and 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] like Figure 4As shown, in some embodiments, the intercepting structure 530 also includes two side plates 533 connected to the intercepting plate 532, and a cooling plate 534 connecting the two side plates 533, and the two side plates 533, the cooling plate 534 and the intercepting plate 532 together form an intercepting groove 531; along 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 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 of the guide notch 522 of the adjacent material receiving box.

[0093] Among them, the plate surface of the cooling plate 534 is arranged in the vertical direction, and the side plate 533 is designed to be a triangle to connect the cooling plate 534 and the intercepting plate 532. The intercepting groove 531 formed by the two side plates 533, the cooling plate 534 and the intercepting plate 532 is in the shape of a triangular prism.

[0094] The outer wall of the cooling plate 534 is in contact with and connected to the cooling structure 540. The height of the triangular-designed side plate 533 is consistent with the height of the cooling structure 540. This arrangement can ensure that the intercepting structure 530 has sufficient mechanical strength to reduce the deformation 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 be flush with the upper surface of the cooling plate 534. During the use of the molding switching device, the cooling plate 534 can transfer the heat in the intercepting groove 531 to the cooling structure 540 to lower 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] like Figures 7 to 9 As shown, Figure 7 This is a schematic diagram of the positions of cooling structures and shut-off structures provided according to some embodiments of the present application. Figure 8 It is a front view schematic diagram of a cooling structure and a shut-off structure provided according to some embodiments of the present application. Fig. 9 for Figure 8 Schematic diagram of the cross-sectional structure along the BB direction. In some embodiments, the cooling structure 540 includes a cooling frame 541 with a hollow structure, a material receiving box is arranged in the cooling frame 541, and the inner wall surface of the cooling frame 541 contacts the outer wall surface of the material receiving box; a part of the outer avoidance surface of the cooling frame 541 contacts the outer avoidance surface of the intercepting structure 530; wherein, a part of the cooling frame 541 located between the material receiving box and the intercepting structure 530 is constructed with an avoidance gap 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 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 , Fig. 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 opened on the side wall of the cooling frame 541 extending along the first direction; wherein, an isolation plate 5419 is arranged in the fluid channel between the liquid inlet 5411 and the liquid outlet 5412, and the liquid inlet 5411 is arranged close to the intercepting structure 530.

[0101] Specifically, the fluid channel has the same shape as the cooling frame 541, for example, the fluid channel is also designed in a U-shaped shape. To facilitate the delivery of coolant into the fluid channel, a liquid inlet 5411 and a liquid outlet 5412 are provided on the side wall of the cooling frame 541, and an isolation plate 5419 is provided between the liquid inlet 5411 and the liquid outlet 5412, so that the fluid channel is used as a one-way flow channel.

[0102] In order to clearly understand the structure of the cooling frame 541, this example is described by taking only one intercepting structure 530 at one end of the material receiving structure 520 as an example, and defining the U-shaped fluid channel from the liquid inlet 5411 to the liquid outlet 5412 to include a first cooling channel 5414, a second cooling channel 5415, a third cooling channel 5416, a fourth cooling channel 5417, and a fifth cooling channel 5418, wherein the first cooling channel 5414, the second cooling channel 5415, the third cooling channel 5416, the fourth cooling channel 5417, and the fifth cooling channel 5418 are connected in sequence, and the first cooling channel 5414 is connected to the liquid inlet 541 1, the fifth cooling channel 5418 is connected with the liquid outlet 5412, and the first cooling channel 5414 and the fifth cooling channel 5418 are connected by an isolation plate, which is used to isolate the coolant in the first cooling channel 5414 and the fifth cooling channel 5418, so as to ensure that the coolant first enters the first cooling channel 5414 after entering from the liquid inlet 5411, and then passes through the second cooling channel 5415, the third cooling channel 5416, the fourth cooling channel 5417, and the fifth cooling channel 5418 in sequence, and is finally discharged from the liquid outlet 5412, so that the flow of the coolant in the fluid channel forms a unidirectional cooling flow.

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

[0104] During operation, 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 cooling liquid is unidirectionally flowed in the first cooling channel 5414, the second cooling channel 5415, the third cooling channel 5416, the fourth cooling channel 5417, and the fifth cooling channel 5418 to achieve rapid heat exchange, thereby ensuring that the surface temperature of the cooling frame 541 and the material receiving box is controlled. For example, the temperature of the connection part between the material receiving box and the cooling frame 541 is controlled within 800°C, and of course, it can be controlled within 600°C as much as possible, so as to control the overall thermal deformation of the cooling frame 541 and the material receiving box within 5%.

[0105] In addition, the outer side of the second cooling channel 5415 is connected to the cooling plate 534. When the intercepting structure 530 contacts the high-temperature glass liquid during operation, the temperature of the intercepting structure 530 rises rapidly, and the heat of the intercepting structure 530 can be quickly transferred to the surface of the cooling frame 541 through the cooling plate 534. Finally, through the heat exchange of the coolant, the temperature of the intercepting mechanism can be controlled within 800°C. Of course, it can be controlled within 600°C as much as possible, so as to control the thermal deformation of the intercepting structure 530 within 5%. The overall height of the second cooling channel 5415 is 0.5-0.75 times the height of the remaining cooling channels to ensure that it is consistent with the height of the guide notch 522 and the cooling plate 534 of the material receiving box, so as to prevent the glass liquid from turning over the edge of the cooling frame 541 due to excessive glass liquid flow during the use of the molding switching device, causing operational safety problems. In one example, when the cooling frame 541 is working normally, the overall deformation does not exceed 5%. Of course, its deformation can be controlled below 3%.

[0106] In order to ensure the cooling effect of the coolant in the cooling frame 541 and facilitate the subsequent collection of glass for reuse, cooling water is preferably used as the coolant of the cooling frame 541. In order to reduce the adverse effects of the vaporization of the coolant during the use of the cooling frame 541, the temperature of the coolant can be controlled not to exceed 30°C before entering the first cooling channel 5414. Of course, the temperature of the coolant can also be controlled to be within 20°C. In order to ensure dynamic adjustment of the coolant flow rate, the pressure of the coolant before entering the first cooling channel 5414 can be set at 0.3MPa to 0.5MPa, thereby ensuring that the cooling amount of the one-way circulation of the coolant 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 will be quickly transferred to the cooling frame 541 through the side plate of the receiving box, and the heat will eventually be taken away by the coolant flowing in the cooling frame 541, thereby ensuring that the overall deformation of the receiving box during use is within 5%.

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

[0109] In addition to the above-mentioned method of arranging the cooling frame 541 at the bottom of the receiving box, it can also be as follows Figure 3 As shown, in some embodiments, the molding switching device further includes a heat-insulating structure 560 , which is disposed in the receiving groove 521 ; wherein the thickness of the heat-insulating structure 560 is less than or equal to 0.5 times the depth of the receiving groove 521 .

[0110] Specifically, the insulation structure 560 can be an insulation layer, which can be laid flat in the receiving groove 521. When the 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 receiving box and preventing local deformation of the bottom plate.

[0111] In order 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 receiving box from thermal deformation. The insulation layer in this example can be made of porous lightweight refractory material. In one example, the bulk density of the refractory material is 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 In order to achieve a better insulation effect, in one example, the thermal conductivity of the insulation material is 0.1-2.0 W / (m·℃) at 600℃ to 1450℃, for example, the thermal conductivity of the refractory material is 0.1-1.0 W / (m·℃).

[0112] In addition, in order 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, because too thinness will increase the heat dissipation of the glass liquid in contact with the upper surface of the insulation layer, causing the temperature of the bottom surface of the material receiving box to rise rapidly and produce local deformation; while too thick an insulation layer will increase the overall weight of the material receiving box, which may cause the received glass liquid to flip out of the material receiving box during use, causing a safety hazard in operation, and on the other hand, when cutting off the glass material column, it is necessary to increase the length of the material column, which may cause the free material column to fall off the product surface, resulting in increased product defects.

[0113] like Fig.10 As shown, Fig.10 The schematic diagram of the structure of the support base and the traveling assembly provided according to some embodiments of the present application. In some embodiments, the support base 510 includes a plurality of lifting rods 511 and a cross bar 512 disposed at the end of the lifting rods 511, and the cross bar 512 is used to support the cooling structure 540; the lifting rods 511 are driven by the driving mechanism to drive the cooling structure 540, the material receiving structure 520 and the intercepting structure 530 to rise or fall.

[0114] Specifically, in order to adjust the height position of the molding switching device, the support seat 510 includes a plurality of lifting rods 511, for example, four lifting rods 511, and two cross beams arranged on the top of the lifting rods 511, and the surface of the cross beam is used to connect with the above-mentioned cooling frame 541. The lifting rod 511 can be used to adjust the cross beam and the cooling structure 540, the material receiving structure 520 and the intercepting structure 530 thereon, so as to ensure that the overall height of the molding switching device is adapted to the discharge pipe 10. For example, the height of the lower nozzle of the discharge pipe 10 from the upper surface of the cooling frame 541 is controlled within the range of 10mm-100mm, which can ensure that while the glass material column is normally cut off, the glass liquid flowing out of the subsequent discharge pipe 10 can be smoothly received, and it can be ensured that when the cut glass material column falls to the free surface of the glass liquid in the molding mold, no bubbles are involved, and no glass contact interface is generated, and finally it is ensured that there is no significant change in the internal quality when the glass molding is completed.

[0115] It should be noted that the lifting rod 511 in this example can be driven by electric, cylinder, hydraulic, etc. Of course, the lifting rod 511 can also be set as a cross-type lifting rod 511, which is not limited here. In addition, the support seat 510 is in a relatively low temperature working environment during the operation of the molding switching device, so its material can be made of metal materials such as ordinary steel, lightweight aluminum alloy profiles, and heat-resistant stainless steel.

[0116] The above-mentioned intercepting structure 530, the material connection structure 520 and the cooling structure 540 are all made of heat-resistant metal materials with corrosion resistance, high temperature resistance, high strength, high rigidity, etc., and examples thereof include nickel-chromium alloy materials.

[0117] In addition, to ensure that the intercepting structure 530 and the material receiving box have sufficient mechanical strength when used at high temperatures, in one example, the wall thickness of the material used in the structure of the intercepting structure 530 and the material receiving box is 1mm-10mm, for example, the wall thickness of the above structure is 2mm-6mm. In one example, the wall thickness of the fluid channel in the cooling frame 541 is 2mm-15mm. In order to ensure efficient heat exchange between the coolant and each contact surface, the material of the intercepting structure 530, the cooling frame 541, and the material receiving box can be selected from metal materials with a thermal conductivity of not less than 10w / (m﹒K) at room temperature. Of course, it is best to use a metal material with a thermal conductivity of 15w / (m﹒K) or more at room temperature, and no specific restrictions are made here.

[0118] like Fig.10 As shown, in some embodiments, the molding switching device further includes a traveling component 550, which is disposed at the bottom of the support base 510 and is used to drive the support base 510 to move along a first direction; wherein the first direction is perpendicular to the direction of gravity.

[0119] Specifically, the traveling assembly 550 may be a flatbed truck, and the support seat 510 is fixed on the flatbed truck and moves along the first direction with the flatbed truck. The flatbed truck in this example may run on the track of the glass forming system, and includes two sets of front wheels and two sets of rear wheels. The spacing between the front wheels and the rear wheels may be determined based on the length of the cooling frame 541 and the cut-off structure 530 in the first direction. For example, the spacing may be 0.3-0.8 times the length of the cooling frame 541 and the cut-off structure 530 in the first direction, so as to achieve stable support for the support seat 510, the cooling frame 541 and the cut-off structure 530, and ensure smooth movement on the track, so as to facilitate switching operations between different forming molds, greatly improve the operability during the switching process, and also improve the safety of the glass liquid discharge process during mold switching, thereby ensuring the smooth progress of the production process.

[0120] The present application also provides a glass block forming system, see Figure 1 The molding system may include the molding switching device in the above embodiment, a first molding die 20 and a second molding die 30. The first molding die 20 and the second molding die 30 are respectively located at two ends of the molding switching device along the first direction;

[0121] The molding switching device is used to cut off the glass material column flowing out of the discharge pipe 10 located above the first molding mold 20 after molding in the first molding mold 20, 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 molding mold 30.

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

[0123] At the same time, the second molding mold 30 (the molding to be molded) and the molding switching device are moved together toward the area where the discharge pipe 10 is located. When the intercepting structure 530 contacts the free column of glass liquid (glass column) flowing out of the discharge pipe 10, the intercepting structure 530 applies a tangential force to the glass column, thereby quickly cutting off the glass column formed between the discharge pipe 10 and the free surface of the glass liquid in the first molding mold 20. That is, the intercepting structure 530 quickly cuts off the glass column into two sections, an upper section and an lower section. The section of the glass column located under the intercepting structure 530 will slowly fall onto the free surface of the glass in the first molding mold 20 to form a glass block. Since the height of the glass column cut off by the intercepting structure 530 can be controlled, it is effectively avoided that when the excessively high glass column falls to the surface of the glass block at the end of molding in the first molding mold 20, it is easy to generate a contact interface and involve bubbles when contacting the free surface of the glass block, causing glass defects. The glass material column located on the intercepting structure 530 will continue to flow downward and fall into the receiving groove 521 of the receiving structure 520 . As the molding switching device continues to move, the glass liquid flowing out of the discharge pipe 10 continues to accumulate in the receiving groove 521 .

[0124] Next, when the end of the molding switching device passes over the area where the discharge pipe 10 is located, the second molding die 30 that has been following the molding switching device will move to the area where the discharge pipe 10 is located, that is, when the molding switching device leaves, the glass liquid flowing out of the discharge pipe 10 just flows into the discharge hole of the second molding die 30. Finally, by adjusting the molding parameters of the second molding die 30 and sealing the discharge hole at the bottom of the second molding die 30 after the adjustment is completed, the glass is formed.

[0125] In one example, the glass block molding system also includes a molding track 40, which extends along a first direction. The above-mentioned molding switching device can be installed on the molding track 40, that is, the molding switching device can move quickly on the molding track 40, thereby solving the problem of rapid switching between two molding molds during the molding process.

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

[0127] Based on the same inventive concept, the embodiment of the present application further provides a glass block forming method, which is applied to the glass block forming system of the above embodiment. The glass block forming method includes:

[0128] Step S10, after the first molding die 20 completes molding, the distance between the molding switching device and the nozzle of the discharge pipe 10 in the height direction is adjusted, and the cooling structure 540 is started at the same time;

[0129] Step S20, controlling the molding switching device to move along the first direction to cut off the glass liquid column flowing out of the discharge pipe 10, and collecting the glass liquid flowing out of the discharge pipe 10 into the containing tank 521;

[0130] Step S30 , adjusting the relative position of the second molding die 30 and the molding switching device so that after the molding 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 molding die 30 .

[0131] It can be understood that in step S10, the first molding mold 20 is in place below the discharge pipe 10, and the mold molding parameters are adjusted. After the preparation work is completed, the molding of the first mold glass block begins. After the thickness of the glass block reaches the process requirements, the height of the glass material column between the discharge pipe 10 and the free surface of the glass block below is adjusted to ensure that the height of the cooling frame 541 of the molding switching device is less than the height of the free material column; and the upper surface height of the molding switching device is adjusted to within the range of the glass material column height, while ensuring that the coolant flow of the cooling frame 541 in the molding switching device is normal.

[0132] It should be noted that the height of the molding switching device can be accurately adjusted by 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 smaller than the height of the glass column.

[0133] In step S20, the second molding mold 30 to be molded is moved together with the molding switching device toward the exit direction of the molding track 40. When the intercepting plate 532 touches the glass material column, the material column is quickly cut off. The upper half of the original glass material column is located above the upper surface of the molding switching device and first falls into the intercepting groove 531. Then the glass liquid gradually moves from the intercepting groove 531 toward the receiving groove 521 of the receiving box.

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

[0135] When the second piece of glass is formed, 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, other rails, etc. to achieve switching between the second forming mold 30 and subsequent other forming molds.

[0136] In one example, the viscosity of the molten glass flowing out of the discharge pipe 10 is between 900 poise and 3500 poise; for example, the viscosity of the molten glass flowing out of the discharge pipe 10 during the molding process is between 1200 poise and 2500 poise.

[0137] In one example, the distance between the outlet of the discharge pipe 10 and the glass surface in the molding mold is between 20 mm and 200 mm. For example, the distance is 50-100 mm.

[0138] It should be noted that the above-mentioned molding method is suitable for the casting molding method to produce large-diameter block glass of low-expansion borosilicate glass, low-expansion microcrystalline glass, radiation-resistant glass, high-uniformity optical glass and other types. It is particularly suitable for improving the uniformity quality of glass when molding ultra-large-sized block glass with a diameter of 1 meter or more.

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

[0140] 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.

[0141] 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. A molding switching device, characterized in that: Used for switching between multiple molding dies; The molding switching device comprises: Support seat; A material receiving structure, arranged 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, disposed at at least one end of the material receiving structure along the first direction, the cut-off structure at least being used to cut off the glass material column flowing out of the discharge pipe; Among them, the molding switching device moves along the first direction relative to the discharge pipe to assist the formed molding mold to cut 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 the preset position of the molding mold to be molded.

2. The molding switching device according to claim 1, characterized in that: The molding switching device also includes a cooling structure, which is arranged 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 material receiving structure comprises a material receiving box, and the material receiving box is formed with the accommodating groove; a flow guiding notch is formed on the side wall of the material receiving box adjacent to the flow intercepting structure; The intercepting structure is configured with an intercepting groove, and the intercepting groove is connected with 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.

4. The molding switching device according to claim 3, 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 plate is in adaptive contact with the cooling structure; And / or, the included angle between the intercepting plate and the first direction is between 15° and 75°.

5. The molding switching device according to claim 3 or 4, characterized in that: The cooling structure comprises a cooling frame with a hollow structure, 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 provided with an avoidance gap.

6. The molding switching device according to claim 5, 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 arranged in the fluid channel between the liquid inlet and the liquid outlet, and the liquid inlet is arranged close to the intercepting structure.

7. The molding switching device according to any one of claims 1 to 4, characterized in that: The molding switching device further includes a heat preservation structure, and the heat preservation structure is arranged in the containing tank; Wherein, the thickness of the thermal insulation structure is less than or equal to 0.5 times the depth of the containing groove.

8. The molding switching device according to any one of claims 2 to 4, characterized in that: The support seat includes a plurality of lifting rods and a cross bar arranged at the end of the lifting rods, and the cross bar is used to support the cooling structure; the lifting rod is driven by the 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 traveling assembly, which is disposed at the bottom of the supporting seat and is used to drive the supporting seat to move along the first direction; Wherein, the first direction is perpendicular to the direction of gravity.

9. A glass block forming system, characterized in that: A molding switching device comprising any one of claims 1 to 8; 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.

10. A method for forming a glass block, characterized in that: Applicable to the glass block forming system as claimed in claim 9, the glass block forming method comprising: After the first molding die is finished molding, the distance between the molding 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 collecting the glass liquid flowing out of the discharge pipe into the containing 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.

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