Liquid material forming die and liquid material forming device

Abstract

The utility model relates to a liquid material forming die and a liquid material forming device. The liquid material forming die comprises a die body and a heating element. The mold main body is provided with a cooling surface for receiving a liquid material, and a cooling channel for a cooling medium to pass through is arranged in the mold main body. The heating element is used for heating the mold body, and the position of the heating element corresponds to the tail end position of the cooling face in the liquid material flowing direction. According to the liquid material forming mold, the effects that the liquid material is not sticky and the liquidity is maintained can be considered, and the production yield of the liquid material with large viscosity is effectively increased.

Description

Technical Field

[0001] The present application relates to the technical field of glass forming, and in particular to a liquid material forming mold and a liquid material forming device. Background Art

[0002] With the rapid development of glass production technology, the industry's performance requirements for glass sheets are becoming more and more diverse. Functional glass sheets with high silicon oxide and aluminum oxide content have emerged. The viscosity of the glass liquid used to prepare such functional glass sheets is relatively high, and the viscosity change curve is extremely steep during the cooling process. When producing such functional glass sheets, traditional liquid material molding devices are difficult to adapt to the characteristics of high viscosity of glass liquid and steep viscosity change curve during the cooling process, resulting in the size of the molded products failing to meet production requirements and low production yield. Summary of the invention

[0003] Based on this, it is necessary to provide a liquid material forming mold and a liquid material forming device to address the problem that traditional liquid material forming devices are difficult to adapt to the production of functional glass plates.

[0004] A liquid material forming mold, comprising:

[0005] A mold body having a cooling surface for receiving liquid material, wherein a cooling channel for cooling medium to pass through is provided in the mold body; and

[0006] The heating element is used to heat the mold body, and the position of the heating element corresponds to the end position of the cooling surface in the liquid material flow direction.

[0007] In the above-mentioned liquid material forming mold, during the process of the mold body receiving liquid material through the cooling surface to cool the liquid material, the cooling channel in the mold body can be connected to the cooling mechanism, so that the cooling medium flows through the mold body to cool the liquid material, accelerate the cooling speed of the liquid material, prevent the liquid material from cooling too slowly, and prevent the temperature of the liquid material from being too high on the mold body and sticking to the cooling surface. It can also reduce the temperature of the mold and extend the service life of the mold. The position of the heating element corresponds to the end position of the cooling surface in the flow direction of the liquid material. The heating element can heat the liquid material after being cooled by the mold body and the cooling medium, maintain the fluidity of the liquid material, so that the liquid material can flow smoothly to the end of the cooling surface and be pulled out to form a plate, without losing fluidity on the cooling surface and affecting the size specifications of the molded product. Therefore, the above-mentioned liquid material forming mold can take into account the effects of non-adhesion of the liquid material and maintaining fluidity, and effectively improve the production yield of liquid materials with high viscosity.

[0008] In one of the embodiments, the mold body further has a back surface facing away from the cooling surface, the cooling surface is inclined to the back surface, and in the flow direction of the liquid material, the distance between the cooling surface and the back surface gradually increases.

[0009] In one embodiment, the cooling channel penetrates the back surface to form an inlet for the cooling medium to enter and an outlet for the cooling medium to flow out.

[0010] In one embodiment, the back side is provided with two inlets and two outlets, and the mold body is provided with two cooling channels. The two cooling channels are connected to the inlets and the outlets one by one, and the inlets and the outlets connected to the same cooling channel are located at corresponding positions in the direction of liquid flow, and the two inlets connected to different cooling channels are spaced apart in the direction of liquid flow.

[0011] In one embodiment, the mold body also has a top surface and a bottom surface arranged back to back, the top surface and the bottom surface are respectively connected to the two opposite edges of the cooling surface, and are both connected to the back surface, the bottom surface corresponds to the end position of the cooling surface in the direction of liquid flow, and the heating element is arranged on the side where the bottom surface of the mold body is located.

[0012] In one of the embodiments, the liquid material forming mold further includes an insulating support seat, the insulating support seat is connected to the bottom surface, and the heating element is disposed on the insulating support seat.

[0013] In one of the embodiments, the liquid forming mold is provided with two insulating support seats spaced apart from each other, the two insulating support seats are located at two opposite edges of the bottom surface in a direction perpendicular to the flow of the liquid, and the two ends of the heating element are respectively fixed on the two insulating support seats.

[0014] In one of the embodiments, the liquid material forming mold includes two heating elements, and the two heating elements are arranged at intervals in a direction where the back side points to the cooling surface.

[0015] In one embodiment, the liquid material forming mold further includes a forming seat, the forming seat is provided with a forming surface, the forming surface is connected to the cooling surface at an end position in the liquid material flow direction, and the liquid material forming mold is configured so that the liquid material can be formed into a plate on the forming surface.

[0016] A liquid material forming device comprises the liquid material forming mold as described in any of the above embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of the liquid material forming mold in some embodiments.

[0018] Figure 2 for Figure 1 A schematic structural diagram of the liquid material forming mold from another angle is shown.

[0019] Figure 3 for Figure 1 The structural schematic diagram of the liquid material forming mold from another angle is shown.

[0020] Figure 4 for Figure 1 The structure diagram of the liquid material forming mold shown is from another angle.

[0021] Reference numerals:

[0022] 10. Liquid material forming mold; 11. Mold body; 111. Cooling surface; 112. Back surface; 113. Top surface; 114. Bottom surface; 115. Inlet; 116. Outlet; 12. Heating element; 13. Insulating support seat. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] When a traditional liquid forming mold is used to produce glass sheets from glass liquid, if the glass liquid has a high content of silicon oxide and aluminum oxide to produce functional glass sheets, the viscosity of the glass liquid is usually large, and the viscosity change curve of the glass liquid during the cooling process is extremely steep. When it is necessary to form a thicker functional glass sheet, such as a functional glass sheet with a thickness of more than 150 mm, the rapid increase in the viscosity of the glass liquid during the cooling process can easily cause the glass liquid to solidify roughly on the cooling surface and lose fluidity, and it cannot flow to the end of the cooling surface and is pulled out of the mold body, resulting in the thickness of the formed glass sheet failing to meet the requirements, or causing the bottom chamfer of the glass sheet to have a large curvature, and the specifications and dimensions cannot meet the requirements, thereby affecting the production yield of the glass sheet. If a traditional liquid forming mold is to solve the problem of the glass liquid being unable to flow due to cooling, it usually reduces the cooling performance of the mold body on the glass liquid, such as slowing down the flow rate of the cooling medium or adjusting to a cooling method with a lower cooling rate. However, such a setting results in a slow cooling rate of the molten glass, and the temperature of the molten glass on the cooling surface is too high, which can easily cause the molten glass to adhere to the cooling surface and hinder normal production, and can also easily cause the temperature of the mold body to be too high, resulting in a reduced service life. Traditional liquid molding molds are difficult to take into account the problems of insufficient fluidity and adhesion of the liquid to the mold when molding thicker functional glass.

[0030] In order to solve the above problems, the present application provides a liquid material forming mold and a liquid material forming device.

[0031] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1-Figure 4 The schematic diagrams of the structure of the liquid material forming mold 10 at different angles in some embodiments of the present application are respectively shown. The liquid material forming mold 10 provided in the present application can be used in a liquid material forming device to cool and form any applicable liquid material to produce a plate, such as cooling and forming a glass liquid material to produce a glass plate. The liquid material forming mold 10 can be used for glass liquid materials with high silicon oxide and aluminum oxide content, and can be used to produce ultra-thick functional glass plates with a thickness of more than 150 mm. Of course, the liquid material forming mold 10 can also be used to cool other liquid materials suitable for use, such as cooling and forming other types of glass liquid materials to produce glass plates of other specifications and sizes.

[0032] In some embodiments, the liquid material forming mold 10 includes a mold body 11 and a forming seat (not shown in the figure), the mold body 11 has a cooling surface 111, the cooling surface 111 is used to receive the liquid material, and the liquid material flows on the cooling surface 111 to cool, the liquid material flow direction involved in the present application can be understood as the flow direction of the liquid material on the cooling surface 111, when the cooling surface 111 is a plane, the direction can be parallel to the cooling surface 111. The forming seat has a forming surface, the forming surface and the cooling surface 111 are connected at the end position of the liquid material flow direction, the liquid material flows through the cooling surface 111 and can flow to the forming surface, and solidify on the forming surface to form a plate.

[0033] In some embodiments, the liquid material forming device may include a discharge mechanism and a traction mechanism. The discharge mechanism can drop liquid material with a specific temperature and viscosity onto the cooling surface 111 according to the requirements of the forming process. The liquid material is cooled on the cooling surface 111 and flows through the cooling surface 111 to the forming surface, and is solidified and formed into a plate on the forming surface. The traction mechanism can pull the plate formed on the forming seat to provide traction for the continuous flow and continuous forming of the liquid material. The specific structural settings of the discharge mechanism and the traction mechanism are not limited. The appropriate discharge mechanism and traction mechanism can be selected according to the requirements of the liquid material forming process. The structural settings of the discharge mechanism and the traction mechanism are not limited in this application.

[0034] Furthermore, in some embodiments, a cooling channel (not shown) for cooling medium to pass through is provided in the mold body 11, and the cooling channel can penetrate the surface of the mold body 11 to form an inlet 115 and an outlet 116. During the molding operation, the cooling channel can be connected to the cooling mechanism of the liquid molding device through the inlet 115 and the outlet 116, and the cooling medium of the cooling mechanism flows into the cooling channel from the inlet 115, cools the mold body 11 and the glass liquid, and then flows out from the outlet 116 to realize the cooling cycle. The cooling medium includes but is not limited to liquids such as water and ethanol, or any suitable gas such as air, nitrogen, ammonia, etc., which can be specifically set according to the cooling requirements. The liquid molding mold 10 also includes a heating element 12, which is used to generate heat to heat the mold body 11. The position of the heating element 12 corresponds to the end position of the cooling surface 111 in the liquid flow direction, that is, the heating element 12 mainly heats the liquid flowing from the cooling surface 111 to the end, or flowing to the second half of the flow path. The liquid heated by the heating element 12 is cooled by the liquid forming mold 10 and the cooling medium.

[0035] In the above liquid material forming mold 10, when the mold body 11 receives liquid material through the cooling surface 111 to cool the liquid material, the cooling channel in the mold body 11 can be connected to the cooling mechanism, so that the cooling medium flows through the mold body 11 to cool the liquid material, accelerate the cooling speed of the liquid material, prevent the liquid material from cooling too slowly, and prevent the liquid material from sticking to the cooling surface 111 due to the high temperature on the mold body 11, and also reduce the temperature of the mold to extend the service life of the mold. The position of the heating element 12 corresponds to the end position of the cooling surface 111 in the liquid material flow direction. The heating element 12 can heat the liquid material after being cooled by the mold body 11 and the cooling medium, maintain the fluidity of the liquid material, and avoid the liquid material after being cooled by the mold body 11 and the cooling medium from being directly pulled out of the mold body 11 due to insufficient fluidity, which affects the size of the formed plate, so that the liquid material can smoothly flow to the end of the cooling surface 111 and then be pulled out to form a plate, which is conducive to the continuous stacking of the liquid material on the forming surface to increase the thickness of the formed plate, thereby facilitating the preparation of ultra-thick glass plates. Therefore, the liquid material forming mold 10 can take into account the effects of preventing the liquid material from sticking and maintaining fluidity, effectively improve the production yield of liquid materials with high viscosity, and also help to increase the service life of the mold body 11.

[0036] In some embodiments, the mold body 11 also has a back surface 112 facing away from the cooling surface 111, the cooling surface 111 is inclined to the back surface 112, and in the flow direction of the liquid material, the distance between the cooling surface 111 and the back surface 112 gradually increases. When performing the molding operation, the back surface 112 can be parallel to the vertical direction and perpendicular to the horizontal direction, and the cooling surface 111 is inclined to the horizontal direction, which can adapt to the flow and cooling requirements of the liquid material. Of course, according to different flow and cooling process requirements of the liquid material, the cooling surface 111 can also be set as a vertical surface or a curved surface.

[0037] In some embodiments, the cooling channel runs through the back side 112 to form an inlet 115 and an outlet 116, which is beneficial for the cooling medium to flow through the mold body 11 and fully cool the liquid material, and is also beneficial for the cooling mechanism to dock with the inlet 115 and the outlet 116 on the back side 112 of the mold body 11, so as to achieve the cooling effect and reasonably design the structural layout. The cooling channel can only form the inlet 115 and the outlet 116 connecting the cooling channel and the outside world on the back side 112, and it is not exposed on the cooling surface 111 and other surfaces, so as to avoid affecting the cooling of the liquid material on the cooling surface 111 or interfering with other processes. In some embodiments, the opening size of the inlet 115 and the outlet 116 is 4mm-10mm, and the opening depth is 60mm-120mm. The part in the direction of the opening depth can be regarded as a part of the cooling channel.

[0038] Further, in some embodiments, the back side 112 is provided with two inlets 115 and two outlets 116, and the mold body 11 is provided with two cooling channels, and the two cooling channels are connected to the inlets 115 and the outlets 116 one by one, and each cooling channel is connected to a corresponding inlet 115 and a corresponding outlet 116. The two inlets 115 connected to the same cooling channel, that is, the positions of the corresponding inlets 115 and outlets 116 in the direction of liquid flow correspond, and the two inlets 115 connected to different cooling channels are arranged at intervals in the direction of liquid flow. In other words, when the two cooling channels extend roughly in the direction of the connection line of the corresponding inlets 115 and outlets 116, the two cooling channels are arranged at intervals in the direction of liquid flow, and the two groups of inlets 115 and outlets 116 can be respectively located on two equally divided parts of the back side 112. As a result, the two cooling channels can evenly cool different parts of the mold body 11, improve the cooling effect on the liquid, so that the liquid can be quickly cooled down, and avoid the liquid temperature being too high and adhering to the mold body 11.

[0039] In some embodiments, the mold body 11 further has a top surface 113 and a bottom surface 114 disposed opposite to each other, and the top surface 113 and the bottom surface 114 are respectively connected to the two opposite edges of the cooling surface 111, and are also respectively connected to the two opposite edges of the back surface 112, that is, the top surface 113, the cooling surface 111, the bottom surface 114 and the back surface 112 are connected in sequence. The bottom surface 114 corresponds to the end position of the cooling surface 111 in the liquid flow direction, that is, the liquid can drip from the portion of the cooling surface 111 close to the top surface 113 to the cooling surface 111, and flow along the cooling surface 111 to the portion of the cooling surface 111 close to the bottom surface 114, and the direction from the top surface 113 to the bottom surface 114 can be parallel to the liquid flow direction, or form an acute angle with the liquid flow direction. The heating element 12 is arranged on the side where the bottom surface 114 of the mold body 11 is located, which is conducive to the easier assembly of the heating element 12 with the mold body 11, and can more accurately heat the liquid flowing along the flow direction of the liquid on the cooling surface 111 to the end position, maintain the fluidity of the liquid, and the heat is not easily transferred to the liquid in other parts of other cooling surfaces 111, so as not to affect the cooling effect on the liquid.

[0040] Of course, the heating element 12 can also be arranged at any other suitable position, as long as the position of the heating element 12 corresponds to the end position of the cooling surface 111 in the liquid material flow direction, and can heat the cooled liquid material to maintain the fluidity of the liquid material. For example, in other embodiments, the heating element 12 can be arranged on the side where the back surface 112 is located and close to the bottom surface 114, or the heating element 12 can be built into the mold body 11 near the bottom surface 114.

[0041] In some embodiments, the liquid material forming mold 10 further includes an insulating support seat 13, the insulating support seat 13 is connected to the bottom surface 114, and the heating element 12 is disposed on the insulating support seat 13, for example, inserted or penetrated on the insulating support seat 13 to be connected with the insulating support seat 13. The insulating support seat 13 is provided to provide installation and insulation for the heating element 12, which is conducive to improving the installation performance of the liquid material forming mold 10.

[0042] Further, in some embodiments, the liquid material forming mold 10 is provided with two spaced insulating support seats 13, the two insulating support seats 13 are located at two opposite edges of the bottom surface 114 in a direction perpendicular to the flow of the liquid material, and the two ends of the heating element 12 are respectively fixed on the two insulating support seats 13. It can be understood that the portion of the heating element 12 located between the two insulating support seats 13 plays a major role in heating the mold body 11. The provision of two insulating support seats 13 can not only improve the structural reliability, but also help to limit the heat between the two insulating support seats 13, improve the utilization efficiency of the heat, and achieve effective heating of the lower half of the mold body 11.

[0043] In some embodiments, two insulating support seats 13 may be respectively provided at both ends of the heating element 12, and the ends of the heating element 12 located outside the two insulating support seats 13 may form electrodes connected to an external power source, and the external power source supplies power to the heating element 12 outside the insulating support seats 13. This makes it difficult for the electrode to be affected by the high-temperature space inside the insulating support seats 13, and is also conducive to the connection between the electrode and the external power source, thereby improving the structural reliability and safety performance of the liquid material forming mold 10.

[0044] In some embodiments, the liquid material forming mold 10 includes two heating elements 12, both of which are fixed on the insulating support seat 13, and the two heating elements 12 are arranged at intervals in the direction where the back surface 112 points to the cooling surface 111. The two heating elements 12 can fully heat the mold body 11, which is conducive to quickly heating the cooled liquid material to maintain the fluidity of the liquid material. The two heating elements 12 are arranged at intervals to avoid the local temperature of the mold body 11 being too high and affecting the service life of the mold body 11.

[0045] In the present application, the heating element 12 includes but is not limited to any applicable component with heating function such as carbon rod, silicon molybdenum rod, resistance wire, etc. The material of the insulating support seat 13 includes but is not limited to any applicable insulating and high temperature resistant material such as corundum mullite, high alumina brick, alkaline refractory material, etc. The height of the insulating support seat 13, that is, the size of the insulating support seat 13 in the direction of the line connecting the top surface 113 and the bottom surface 114, can be 35mm-50mm.

[0046] 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.

[0047] 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 liquid material forming mold, characterized in that: include: The mold body has a cooling surface for receiving liquid material, and a cooling channel for cooling medium to pass through is provided in the mold body; as well as, The heating element is used to heat the mold body, and the position of the heating element corresponds to the end position of the cooling surface in the liquid material flow direction.

2. The liquid material forming mold according to claim 1, characterized in that: The mold body also has a back surface facing away from the cooling surface, the cooling surface is inclined to the back surface, and in the flow direction of the liquid material, the distance between the cooling surface and the back surface gradually increases.

3. The liquid material forming mold according to claim 2, characterized in that: The cooling channel penetrates the back surface to form an inlet for a cooling medium to enter and an outlet for the cooling medium to flow out.

4. The liquid material forming mold according to claim 3, characterized in that: The back side is provided with two inlets and two outlets, and the mold body is provided with two cooling channels. The two cooling channels are connected to the inlets and the outlets one by one. The inlets and the outlets connected to the same cooling channel are located at corresponding positions in the direction of liquid flow, and the two inlets connected to different cooling channels are spaced apart in the direction of liquid flow.

5. The liquid material forming mold according to claim 2, characterized in that: The mold body also has a top surface and a bottom surface arranged back to back, the top surface and the bottom surface are respectively connected to the two opposite edges of the cooling surface, and are both connected to the back surface, the bottom surface corresponds to the end position of the cooling surface in the direction of liquid flow, and the heating element is arranged on the side where the bottom surface of the mold body is located.

6. The liquid material forming mold according to claim 5, characterized in that: The liquid material forming mold also includes an insulating support seat, the insulating support seat is connected to the bottom surface, and the heating element is arranged on the insulating support seat.

7. The liquid material forming mold according to claim 6, characterized in that: The liquid material forming mold is provided with two insulating support seats spaced apart from each other. The two insulating support seats are located at two opposite edges of the bottom surface in a direction perpendicular to the flow of the liquid material. The two ends of the heating element are respectively fixed on the two insulating support seats.

8. The liquid material forming mold according to claim 5, characterized in that: The liquid material forming mold comprises two heating elements, and the two heating elements are arranged at intervals in a direction in which the back surface points to the cooling surface.

9. The liquid material forming mold according to any one of claims 1 to 8, characterized in that: The liquid material forming mold further comprises a forming seat, wherein the forming seat is provided with a forming surface, wherein the forming surface is connected to the cooling surface at an end position in the liquid material flow direction, and the liquid material forming mold is configured so that the liquid material can be formed into a plate on the forming surface.

10. A liquid material forming device, characterized in that: It comprises a liquid material forming mold as described in any one of claims 1 to 9.

Images