Glass forming stop block and device

Abstract

The utility model relates to a glass forming check block and device.The glass forming check block is characterized in that a cooling cavity is formed in a check block body, the check block body comprises a liquid guide face, the liquid guide face is located on one side, in the first direction, of the cooling cavity, and the cooling cavity communicates with a cooling liquid inlet and a cooling liquid outlet; the distances between the two opposite ends of the liquid guide face in the second direction and the center of the cooling cavity are equal, the volume of the cooling cavity is 1 / 10-3 / 10 of the volume of the check block body, the cavity walls of the two opposite sides of the cooling cavity in the second direction are planes, the two planes are both perpendicular to the second direction, and the distances between the two planes and the center of the cooling cavity in the second direction are equal. According to the glass forming check block in the embodiment, the volume of the cooling cavity is 1 / 10-3 / 10 of the volume of the check block body, so that the situation that the cooling cavity secondarily cools molten glass in the process that the molten glass diffuses from the center of the liquid guide surface to the center of the liquid guide surface along the two sides of the second direction can be avoided or reduced, and the risk that the molten glass generates bottom forming stripes is reduced.

Description

Technical Field

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

[0002] In the optical glass production process, high-temperature molten glass flows out of the discharge pipe into the molding mold, and first contacts the molding block in the molding mold. After being cooled by the molding block, the molten glass flows to the bottom mold of the molding mold and is cooled into a fixed shape. In the related art, most of the molding blocks adopt an internal cooling cavity to enhance the cooling effect on the molten glass. However, the cooling of the molten glass by the cavity is uneven, which easily causes the molten glass to produce bottom molding stripes. Utility Model Content

[0003] Based on this, it is necessary to provide a glass forming block and device to address the problem that the cavity in the current forming block cools the glass liquid unevenly, which easily leads to the glass liquid producing bottom forming stripes.

[0004] A glass forming stopper, comprising:

[0005] A block body, wherein a cooling cavity is provided in the block body, and a surface of the block body includes a liquid guide surface and other surfaces; the liquid guide surface is located on one side of the cooling cavity along the first direction, and a cooling liquid inlet and a cooling liquid outlet communicating with the cooling cavity are provided on the other surface;

[0006] Wherein, the distances between the two opposite ends of the liquid guide surface along the second direction and the center of the cooling cavity are equal, and the second direction is perpendicular to the first direction; the volume of the cooling cavity is 1 / 10 to 3 / 10 of the volume of the block body, and the cavity walls on the two opposite sides of the cooling cavity along the second direction are planes, the two planes are parallel to each other and perpendicular to the second direction, and the distances between the two planes and the center of the cooling cavity in the second direction are equal, and the first direction is any one of the length direction, width direction or height direction of the block body.

[0007] In one embodiment, the liquid guiding surface extends from one end of the block body to the other end along the second direction.

[0008] In one embodiment, the thickness of the wall of the cooling cavity along the first direction close to the liquid guiding surface is between 3 mm and 8 mm.

[0009] In one embodiment, a heat preservation groove is provided on one side of the block body along the third direction, the first direction, the second direction and the third direction are perpendicular to each other, and two heat preservation grooves are arranged one by one at intervals on opposite sides of the cooling cavity along the second direction;

[0010] A first opening is provided on the groove wall of each of the heat preservation grooves on the side away from the liquid guiding surface along the first direction, and the first opening is communicated with the heat preservation groove.

[0011] In one of the embodiments, the glass forming block includes two heating elements, and the two heating elements are arranged in a one-to-one correspondence with the two insulation tanks, and each of the heating elements is located in the corresponding insulation tank.

[0012] In one embodiment, the groove wall of each of the heat preservation grooves forms a heat preservation cavity, and each of the heat preservation cavity comprises a first heat preservation sub-cavity and a second heat preservation sub-cavity arranged at intervals along the first direction, the first heat preservation sub-cavity is communicated with the first opening, and the second heat preservation sub-cavity is located between the first heat preservation sub-cavity and the liquid guide surface, and is communicated with the first heat preservation sub-cavity;

[0013] The heating element is located in the first heat preservation sub-cavity, and a dimension of the heating element along the third direction is smaller than a dimension of the first heat preservation sub-cavity along the third direction.

[0014] In one embodiment, the distance between each of the heat preservation grooves and the center of the cooling cavity along the second direction away from the center of the cooling cavity is a first value, and the first value is less than or equal to 1 / 2 of the size of the block body along the second direction;

[0015] The insulation tank is close to the center of the cooling cavity along the second direction, and the distance between the center of the cooling cavity is a second value, and the second value is greater than the distance between the plane and the center of the cooling cavity in the second direction.

[0016] In one embodiment, a virtual symmetry plane is provided on the block body, and the virtual symmetry plane passes through the center of the cooling cavity and is perpendicular to the second direction;

[0017] The liquid guide surface is symmetrically arranged along the second direction with respect to the virtual symmetry plane.

[0018] In one embodiment, the liquid guide surface is a curved surface, and the curved surface is concave toward the block body, and the curvature radius of the curved surface is between 400 mm and 900 mm.

[0019] In the glass forming block of the present embodiment, the coolant enters the cooling cavity from the coolant inlet, cools the glass liquid on the liquid guide surface, and then flows out of the cooling cavity from the coolant outlet. By setting the volume of the cooling cavity to 1 / 10 to 3 / 10 of the volume of the block body, the distance between the cavity walls on the two opposite sides of the cooling cavity along the second direction and the center of the cooling cavity in the second direction can be reduced, and the distance between the cavity walls on the two opposite sides of the cooling cavity along the second direction and the two opposite sides of the liquid guide surface in the second direction can be increased, so that after the coolant enters the cooling cavity from the coolant inlet, the glass liquid located at the center of the liquid guide surface can be cooled, and the flow of the glass liquid from the center of the liquid guide surface to the liquid can be prevented or reduced. During the diffusion of the center of the guide surface along the second direction on both sides, the coolant in the cooling chamber performs secondary cooling on the glass liquid, thereby reducing the temperature difference between the glass liquid located at the center of the liquid guide surface and the glass liquid located at both sides of the center of the liquid guide surface along the second direction, and ultimately reducing the risk of the glass liquid producing bottom forming stripes. In summary, the glass forming block in this embodiment, by setting the volume of the cooling chamber to 1 / 10 to 3 / 10 of the volume of the block body, can avoid or reduce the risk of the glass liquid being diffused from the center of the liquid guide surface to the center of the liquid guide surface along the second direction. The cooling chamber performs secondary cooling on the glass liquid, thereby reducing the risk of the glass liquid producing bottom forming stripes.

[0020] The present application also proposes a glass forming device, comprising the glass forming stopper described above, as well as a bottom template and a side template, wherein the bottom template is located on the side of the stopper body where the heat preservation groove is provided, and contacts the stopper body;

[0021] The side template is located on a side of the bottom template close to the block body, and two side templates are arranged one-to-one on opposite sides of the block body along the second direction, and each side template is in contact with the block body.

[0022] In the glass forming device of this embodiment, the coolant enters the cooling chamber from the coolant inlet, cools the glass liquid on the liquid guide surface, and then flows out of the cooling chamber from the coolant outlet. By setting the volume of the cooling chamber to 1 / 10 to 3 / 10 of the volume of the block body, the distance between the cavity walls on the two opposite sides of the cooling chamber along the second direction and the center of the cooling chamber in the second direction can be reduced, and the distance between the cavity walls on the two opposite sides of the cooling chamber along the second direction and the two opposite sides of the liquid guide surface in the second direction can be increased, so that after the coolant enters the cooling chamber from the coolant inlet, the glass liquid located at the center of the liquid guide surface is cooled, and the glass liquid is prevented from flowing from the center of the liquid guide surface to the center of the liquid guide surface along the second direction. In the process of diffusion from the center of the liquid guide surface to the sides of the center of the liquid guide surface along the second direction, the coolant in the cooling chamber performs secondary cooling on the glass liquid, thereby reducing the temperature difference between the glass liquid located at the center of the liquid guide surface and the glass liquid located at the sides of the center of the liquid guide surface along the second direction, and finally reducing the risk of the glass liquid generating molding stripes during the molding process on the bottom template. In summary, the glass molding device in this embodiment, by setting the volume of the cooling chamber to 1 / 10 to 3 / 10 of the volume of the block body, can avoid or reduce the risk of the glass liquid generating molding stripes during the molding process on the bottom template by setting the volume of the cooling chamber to 1 / 10 to 3 / 10 of the volume of the block body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments or exemplary embodiments of the present application, the drawings required for use in the description of the embodiments or exemplary embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 Schematic diagram of the structure of a glass forming stopper in one embodiment of the present application.

[0025] Figure 2 for Figure 1 The schematic diagram of the structure of the stopper body in the glass forming stopper is shown.

[0026] Figure 3 for Figure 2 A front view of the block body is shown.

[0027] Figure 4 for Figure 1 Left side view of the glass forming stop shown.

[0028] Figure 5 for Figure 1 Front view of the glass forming stop shown.

[0029] Figure 6Schematic diagram of the structure of a glass forming device in one embodiment of the present application.

[0030] Figure 7 for Figure 6 The glass forming device is shown in a right view with the side template removed.

[0031] Reference numerals:

[0032] Glass forming device 1000;

[0033] Glass forming stopper 1100, stopper body 1110, cooling cavity 1111, plane 1111-1, liquid guide surface 1112, remaining surface 1113, cooling liquid inlet 1113-1, cooling liquid outlet 1113-2, insulation tank 1114, first opening 1114-1, first insulation sub-cavity 1114-2, second insulation sub-cavity 1114-3, third insulation sub-cavity 1114-4, heating element 1120;

[0034] Bottom template 1200;

[0035] Side formwork 1300. DETAILED DESCRIPTION

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] See also Figures 1 to 3 , Figure 1The structure schematic diagram of the glass forming stopper in an embodiment of the present application is shown. A glass forming stopper 1100 provided in an embodiment of the present application includes: a stopper body 1110, a cooling cavity 1111 is provided in the stopper body 1110, the surface of the stopper body 1110 includes a liquid guide surface 1112 and a remaining surface 1113, the liquid guide surface 1112 is located on one side of the cooling cavity 1111 along the first direction, and the remaining surface 1113 is provided with a cooling liquid inlet 1113-1 and a cooling liquid outlet 1113-2 connected to the cooling cavity 1111, wherein the liquid guide surface 1112 The distances between the two opposite ends along the second direction and the center of the cooling cavity 1111 are equal, and the second direction is perpendicular to the first direction; the volume of the cooling cavity 1111 is 1 / 10 to 3 / 10 of the volume of the block body 1110, and the cavity walls on the two opposite sides of the cooling cavity 1111 along the second direction are planes 1111-1, and the two planes 1111-1 are parallel to each other and perpendicular to the second direction. The distances between the two planes 1111-1 and the center of the cooling cavity 1111 in the second direction are equal, and the first direction is any one of the length direction, width direction or height direction of the block body 1110.

[0043] In the glass forming stopper 1100 of the present embodiment, the coolant (not shown) enters the cooling chamber 1111 from the coolant inlet 1113-1, cools the glass liquid on the liquid guide surface 1112, and then flows out of the cooling chamber 1111 from the coolant outlet 1113-2. By setting the volume of the cooling chamber 1111 to 1 / 10 to 3 / 10 of the volume of the stopper body 1110, the distance between the cavity walls of the cooling chamber 1111 on the opposite sides along the second direction and the center of the cooling chamber 1111 in the second direction can be reduced, and the distance between the cavity walls of the cooling chamber 1111 on the opposite sides along the second direction and the liquid guide surface 1112 on the opposite sides along the second direction can be increased, so that after the coolant enters the cooling chamber 1111 from the coolant inlet 1113-1, the glass liquid located at the center of the liquid guide surface 1112 is cooled, thereby preventing or reducing During the process of the glass liquid diffusing from the center of the liquid guide surface 1112 to the two sides of the center of the liquid guide surface 1112 along the second direction, the coolant in the cooling chamber 1111 performs secondary cooling on the glass liquid, thereby reducing the temperature difference between the glass liquid located at the center of the liquid guide surface 1112 and the glass liquid located at the two sides of the center of the liquid guide surface 1112 along the second direction, and finally reducing the risk of the glass liquid producing bottom forming stripes. In summary, the glass forming stopper 1100 in this embodiment, by setting the volume of the cooling chamber 1111 to 1 / 10 to 3 / 10 of the volume of the stopper body 1110, can avoid or reduce the risk of the glass liquid diffusing from the center of the liquid guide surface 1112 to the two sides of the center of the liquid guide surface 1112 along the second direction, and the cooling chamber 1111 performs secondary cooling on the glass liquid, thereby reducing the risk of the glass liquid producing bottom forming stripes.

[0044] It should be further explained that in the field of glass forming technology, when the thickness of the glass plate to be formed by the glass liquid is greater, during the process of cooling the glass liquid by the glass forming stopper 1100, the temperature difference between the glass liquid located at the center of the liquid guide surface 1112 and the glass liquid located at the two opposite sides of the center of the liquid guide surface 1112 along the second direction is greater, and the glass plate formed by the glass liquid is more likely to produce forming stripes. Compared with the traditional glass forming stopper 1100, the volume of the cooling cavity 1111 of the glass forming stopper 1100 in this embodiment is 1 / 100 of the volume of the stopper body 1110. 10~3 / 10, the volume of the cooling chamber 1111 is smaller, and the cooling liquid in the cooling chamber 1111 can prevent or reduce the glass liquid from diffusing from the center of the liquid guide surface 1112 to the two sides of the center of the liquid guide surface 1112 along the second direction. The cooling liquid in the cooling chamber 1111 performs secondary cooling on the glass liquid, thereby reducing the temperature difference between the glass liquid at the center of the liquid guide surface 1112 and the glass liquid at the two sides of the center of the liquid guide surface 1112 along the second direction. The manufactured glass plate is not prone to forming stripes, and is convenient for manufacturing a glass plate with a thicker thickness. The thickness direction of the glass plate is perpendicular to the first direction and the second direction.

[0045] See also Figure 2 In some embodiments, the liquid guide surface 1112 extends from one end of the block body 1110 to the other end along the second direction.

[0046] In this embodiment, by setting the liquid guiding surface 1112 to extend from one end of the block body 1110 along the second direction to the other end, the size of the liquid guiding surface 1112 along the second direction is increased, which facilitates the glass liquid to diffuse from the center of the liquid guiding surface 1112 to a farther position along the second direction from the center of the liquid guiding surface 1112, thereby producing a glass plate with a larger size along the second direction.

[0047] In some embodiments, the block body 1110 is made of a heat-resistant and heat-conductive material, preferably cast iron, stainless steel, copper or other common heat-resistant and heat-conductive metals.

[0048] In some embodiments, the distance between each plane 1111 - 1 and the center of the cooling cavity 1111 in the second direction is 1 / 9 to 3 / 9 of the size of the block body 1110 in the second direction.

[0049] See also Figure 3 and 4 In some embodiments, the wall thickness of the cooling cavity 1111 on the side close to the liquid guiding surface 1112 along the first direction is between 3 mm and 8 mm.

[0050] In this embodiment, by setting the wall thickness of the cooling cavity 1111 on the side close to the liquid guide surface 1112 along the first direction to be between 3 mm and 8 mm, and reducing the wall thickness of the cooling cavity 1111 on the side close to the liquid guide surface 1112 along the first direction, the cooling effect of the coolant on the glass liquid on the liquid guide surface 1112 can be improved, thereby cooling the glass liquid located at the center of the liquid guide surface 1112 to a greater extent.

[0051] In some embodiments, the wall thickness of the cavity wall of the cooling cavity 1111 on two opposite sides along the third direction is between 3 mm and 8 mm. By setting the wall thickness of the cavity wall of the cooling cavity 1111 on two opposite sides along the third direction to between 3 mm and 8 mm, the size of the cooling cavity 1111 along the third direction can be increased, thereby making the volume of the cooling cavity 1111 larger to accommodate more cooling liquid to cool the glass liquid located at the center of the liquid guide surface 1112, thereby cooling the glass liquid located at the center of the liquid guide surface 1112 to a greater extent.

[0052] In some embodiments, the cooling liquid inlet 1113 - 1 and the cooling liquid outlet 1113 - 2 are both disposed on a side of the remaining surface 1113 away from the liquid guiding surface 1112 along the first direction.

[0053] In some embodiments, a central axis of the cooling liquid outlet 1113 - 2 extends along a first direction.

[0054] In some embodiments, multiple coolant inlets 1113-1 are located on the same side of the coolant outlet 1113-2 along the third direction, the central axis of each coolant inlet 1113-1 extends along the first direction, and the central axis of each coolant inlet 1113-1 is 5 mm to 20 mm away from the central axis of the coolant outlet 1113-2 in the third direction.

[0055] In some embodiments, the inner diameter of each cooling liquid inlet 1113 - 1 is between 6 mm and 12 mm.

[0056] See also Figures 3 to 5 In some embodiments, a heat preservation groove 1114 is provided on one side of the block body 1110 along the third direction, the first direction, the second direction and the third direction are perpendicular to each other, and the two heat preservation grooves 1114 are arranged one by one at intervals on the opposite sides of the cooling cavity 1111 along the second direction, and a first opening 1114-1 is provided on the groove wall of each heat preservation groove 1114 on the side away from the liquid guide surface 1112 along the first direction, and the first opening 1114-1 is connected to the heat preservation groove 1114.

[0057] In this embodiment, two insulation grooves 1114 are arranged one by one and are spaced apart at opposite sides of the cooling chamber 1111 along the second direction. The first opening 1114-1 is connected to the insulation groove 1114, so that after the external gas enters the insulation groove 1114 through the first opening 1114-1, the center of the liquid guide surface 1112 can be insulated along both sides of the second direction. Compared with the traditional glass forming stopper 1100, the glass forming stopper 1100 in the present application has a lower cooling effect on the glass liquid when the center of the liquid guide surface 1112 contacts the glass liquid along both sides of the second direction. The glass liquid can diffuse more smoothly from the center of the liquid guide surface 1112 to a farther position of the center of the liquid guide surface 1112 along the second direction. There will be no stripes or poor glass shape caused by poor diffusion of the glass liquid, which is convenient for making glass plates with larger dimensions in the second direction.

[0058] In some embodiments, the volume of the cavity enclosed by the groove wall of the insulation groove 1114 is 1 / 3 to 1 / 6 of the volume of the block body 1110. By setting the volume of the cavity enclosed by the groove wall of the insulation groove 1114 to 1 / 3 to 1 / 6 of the volume of the block body 1110, the distance between the groove walls on the opposite sides of the insulation groove 1114 along the second direction can be made larger, and more gas can enter the insulation groove 1114, which makes it easier to heat the larger area on the liquid guide surface 1112 located at the center of the liquid guide surface 1112 on both sides along the second direction, ensuring that the glass liquid can diffuse more smoothly from the center of the liquid guide surface 1112 to a farther position along the second direction from the center of the liquid guide surface 1112.

[0059] In some embodiments, each heat preservation groove 1114 is provided with a second opening (not shown) on a side away from the center of the cooling cavity 1111 along the second direction, and the second opening is connected to the heat preservation groove 1114 .

[0060] In some embodiments, the wall thickness of the insulation tank 1114 along the first direction close to the liquid guide surface 1112 is between 10 mm and 30 mm, the wall thickness of the insulation tank 1114 along the third direction is between 10 mm and 30 mm, and the size of the insulation tank 1114 along the second direction is between 30 mm and 150 mm.

[0061] In some embodiments, the distance between the central axis of the cooling liquid outlet 1113 - 2 and the surface of one side of the block body 1110 where the heat preservation groove 1114 is provided in the third direction is between 3 mm and 8 mm.

[0062] In some embodiments, the insulation tank 1114 is used to manufacture a glass plate having a dimension less than or equal to 300 mm along the second direction.

[0063] See also Figure 4 and Figure 5In some embodiments, the glass forming block 1100 includes two heating elements 1120 , and the two heating elements 1120 are disposed in a one-to-one correspondence with the two insulation tanks 1114 , and each heating element 1120 is located in the corresponding insulation tank 1114 .

[0064] In this embodiment, by arranging a heating element 1120 in the insulation tank 1114, the center of the liquid guide surface 1112 can be heated on both sides along the second direction. In this way, in the process of the glass liquid diffusing from the center of the liquid guide surface 1112 to the center of the liquid guide surface 1112 on both sides along the second direction, the glass liquid can absorb the energy provided by the liquid guide surface 1112 to resist the decrease in its own temperature and ensure fluidity, and finally diffuse to a farther position along the second direction from the center of the liquid guide surface 1112, so as to produce a glass plate with a larger size along the second direction.

[0065] In some embodiments, the heating temperature of the heating element 1120 is adjustable.

[0066] In some embodiments, the heating element 1120 is used to manufacture a glass sheet having a dimension greater than 300 mm along the second direction.

[0067] In some embodiments, the orthographic projection of the heating element 1120 on the block body 1110 along the second direction coincides with the orthographic projection of the heat preservation tank 1114 on the block body 1110 along the second direction.

[0068] See also Figure 4 and Figure 5 In some embodiments, the groove wall of each insulation groove 1114 forms an insulation cavity (not shown), and each insulation cavity includes a first insulation sub-cavity 1114-2 and a second insulation sub-cavity 1114-3 arranged at intervals along the first direction, the first insulation sub-cavity 1114-2 is connected to the first opening 1114-1, and the second insulation sub-cavity 1114-3 is located between the first insulation sub-cavity 1114-2 and the liquid guide surface 1112, and is connected to the first insulation sub-cavity 1114-2; the heating element 1120 is located in the first insulation sub-cavity 1114-2, and the size of the heating element 1120 along the third direction is smaller than the size of the first insulation sub-cavity 1114-2 along the third direction.

[0069] In this embodiment, the heating element 1120 is arranged in the first insulation sub-chamber 1114-2, and the size of the heating element 1120 along the third direction is smaller than the size of the first insulation sub-chamber 1114-2 along the third direction. The second insulation sub-chamber 1114-3 is connected to the first insulation sub-chamber 1114-2. On the one hand, the external gas can enter the second insulation sub-chamber 1114-3 from the first opening 1114-1 through the first insulation sub-chamber 1114-2, thereby insulating the glass liquid in contact with the center of the liquid guide surface 1112 on both sides along the second direction. On the other hand, the heat generated by the heating element 1120 can be transmitted to the liquid guide surface 1112 through the second insulation sub-chamber 1114-3, thereby heating the glass liquid in contact with the center of the liquid guide surface 1112 on both sides along the second direction.

[0070] In some embodiments, the outer contour of the orthographic projection of the first heat preservation sub-cavity 1114 - 2 on the block body 1110 along the second direction coincides with the outer contour of the orthographic projection of the heating element 1120 on the block body 1110 along the second direction.

[0071] In some embodiments, the insulation chamber includes a third insulation sub-chamber 1114-4, and two third insulation sub-chambers 1114-4 are arranged at intervals on opposite sides of the first insulation sub-chamber 1114-2 along the second direction. The two third insulation sub-chambers 1114-4 are connected through the first insulation sub-chamber 1114-2, and each third insulation sub-chamber 1114-4 is connected to the second insulation sub-chamber 1114-3, and the second insulation sub-chamber 1114-3 is connected to the first opening 1114-1 through each third insulation sub-chamber 1114-4.

[0072] In some embodiments, the third insulation sub-cavity 1114 - 4 in each insulation tank 1114 , which is located on the side of the first insulation sub-cavity 1114 - 2 away from the center of the cooling cavity 1111 along the second direction, is connected to the second opening on the insulation tank 1114 .

[0073] See also Figure 6 In some embodiments, each insulation groove 1114 is away from the center of the cooling cavity 1111 along the second direction, and the distance between the center of the cooling cavity 1111 is a first value, and the first value is less than or equal to 1 / 2 of the size of the block body 1110 along the second direction. The insulation groove 1114 is close to the center of the cooling cavity 1111 along the second direction, and the distance between the center of the cooling cavity 1111 is a second value, and the second value is greater than the distance between the plane 1111-1 and the center of the cooling cavity 1111 in the second direction.

[0074] In this embodiment, by arranging the insulation groove 1114 to be close to the center side of the cooling chamber 1111 along the second direction, the distance between the insulation groove 1114 and the center of the cooling chamber 1111 is greater than the distance between the plane 1111-1 and the center of the cooling chamber 1111 in the second direction, so that the insulation groove 1114 is separated from the cooling chamber 1111 to prevent the coolant in the cooling chamber 1111 from cooling the gas in the insulation groove 1114; by arranging each insulation groove 1114 to be away from the center side of the cooling chamber 1111 along the second direction, the distance between the insulation groove 1114 and the center of the cooling chamber 1111 is less than or equal to 1 / 2 of the size of the block body 1110 along the second direction, so that the two insulation grooves 1114 away from the center side of the cooling chamber 1111 along the second direction can be flush with the two sides of the block body 1110 away from the center of the cooling chamber 1111 along the second direction, thereby increasing the size of the insulation groove 1114 along the second direction.

[0075] See also Figure 2 In some embodiments, a virtual symmetry plane (not shown) is provided on the block body 1110, the virtual symmetry plane passes through the center of the cooling cavity 1111 and is perpendicular to the second direction, and the liquid guide surface 1112 is symmetrically arranged along the second direction with respect to the virtual symmetry plane.

[0076] In this embodiment, the liquid guiding surface 1112 is symmetrically arranged along the second direction about the virtual symmetry plane so that the glass liquid can be evenly diffused from the center of the liquid guiding surface 1112 to two opposite sides of the center of the guiding surface 1112 along the second direction.

[0077] In some embodiments, the central axis of the cooling liquid outlet 1113 - 2 is located within a virtual symmetry plane.

[0078] In some embodiments, a plurality of cooling liquid inlets 1113-1 are arranged at intervals along the second direction on opposite sides of the virtual symmetry plane, and each cooling liquid inlet 1113-1 is located at the cooling liquid outlet 1113-2 along the third direction, away from the side of the block body 1110 where the insulation groove 1114 is opened.

[0079] In some embodiments, the angle between the liquid guide surface 1112 and the surface of the block body 1110 on the side where the heat preservation groove 1114 is provided is a first acute angle, and the first acute angle is between 20 degrees and 70 degrees.

[0080] In some embodiments, the angle between the groove wall of the insulation groove 1114 close to the liquid guide surface 1112 along the first direction and the surface of the side of the block body 1110 where the insulation groove 1114 is opened is a second acute angle, and the second acute angle is equal to the first acute angle.

[0081] In some embodiments, a side wall of the heat preservation tank 1114 along the third direction is perpendicular to the third direction.

[0082] In some embodiments, the angle between the side of the first insulation sub-chamber 1114-2 close to the liquid guide surface 1112 along the first direction and the surface of the side of the block body 1110 where the insulation groove 1114 is opened is a third acute angle, and the third acute angle is equal to the second acute angle.

[0083] In some embodiments, surfaces on two opposite sides of the first heat-insulating sub-cavity 1114 - 2 along the third direction are parallel to a groove wall on one side of the heat-insulating groove 1114 along the third direction.

[0084] See also Figure 2 In some embodiments, the liquid guide surface 1112 is a curved surface, and the curved surface is concave toward the block body 1110, and the curvature radius of the curved surface is between 400 mm and 900 mm.

[0085] In this embodiment, by setting the liquid guide surface 1112 as a curved surface with a curvature radius between 400 mm and 900 mm, the travel of the glass liquid on the liquid guide surface 1112 can be reduced, thereby reducing the temperature drop of the glass liquid when it diffuses from the center of the liquid guide surface 1112 to the center of the liquid guide surface 1112 along the second direction to the two opposite sides, thereby facilitating the glass liquid to diffuse from the center of the liquid guide surface 1112 to the two opposite sides along the second direction.

[0086] In some embodiments, the liquid guiding surface 1112 is a planar surface.

[0087] In some embodiments, the liquid guiding surface 1112 is a spherical surface.

[0088] See also Figure 6 and Figure 7 , Figure 6 This is a structural schematic diagram of a glass forming device in an embodiment of the present application. A glass forming device 1000 provided in an embodiment of the present application includes the glass forming block 1100 mentioned above, as well as a bottom template 1200 and a side template 1300. The bottom template 1200 is located on the side of the block body 1110 where the insulation groove 1114 is provided, and is in contact with the block body 1110. The side template 1300 is located on the side of the bottom template 1200 close to the block body 1110. The two side templates 1300 are arranged one by one on opposite sides of the block body 1110 along the second direction, and each side template 1300 is in contact with the block body 1110.

[0089] In the glass forming device 1000 of the present embodiment, the coolant enters the cooling chamber 1111 from the coolant inlet 1113-1, cools the glass liquid on the liquid guide surface 1112, and then flows out of the cooling chamber 1111 from the coolant outlet 1113-2. By setting the volume of the cooling chamber 1111 to 1 / 10 to 3 / 10 of the volume of the block body 1110, the distance between the cavity walls of the cooling chamber 1111 on the opposite sides along the second direction and the center of the cooling chamber 1111 in the second direction can be reduced, and the distance between the cavity walls of the cooling chamber 1111 on the opposite sides along the second direction and the liquid guide surface 1112 on the opposite sides along the second direction can be increased, so that after the coolant enters the cooling chamber 1111 from the coolant inlet 1113-1, the glass liquid located at the center of the liquid guide surface 1112 is cooled, and the glass liquid is prevented from or reduced from the center of the liquid guide surface 1112. In the process of diffusing toward the center of the liquid guide surface 1112 on both sides along the second direction, the coolant in the cooling chamber 1111 performs secondary cooling on the glass liquid, thereby reducing the temperature difference between the glass liquid located at the center of the liquid guide surface 1112 and the glass liquid located on both sides of the center of the liquid guide surface 1112 along the second direction, and finally reducing the risk of the glass liquid generating molding stripes during the molding process on the bottom template 1200. In summary, the glass molding device 1000 in this embodiment, by setting the volume of the cooling chamber 1111 to 1 / 10 to 3 / 10 of the volume of the block body 1110, can avoid or reduce the risk of the glass liquid generating molding stripes during the molding process on the bottom template 1200 when the cooling chamber 1111 performs secondary cooling on the glass liquid when the glass liquid diffuses from the center of the liquid guide surface 1112 to both sides of the center of the liquid guide surface 1112 along the second direction.

[0090] In some embodiments, the glass forming apparatus 1000 includes a discharge pipe (not shown), and the molten glass flows from one end of the discharge pipe to the center of the liquid guide surface 1112 .

[0091] In some embodiments, the discharge pipe is spaced apart on the side of the liquid guide surface 1112 away from the bottom template 1200 along the third direction, and the discharge pipe extends along the third direction.

[0092] 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.

[0093] 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 glass forming stopper, characterized in that: The glass forming stopper comprises: A block body, wherein a cooling cavity is provided in the block body, and a surface of the block body includes a liquid guide surface and other surfaces; the liquid guide surface is located on one side of the cooling cavity along the first direction, and a cooling liquid inlet and a cooling liquid outlet communicating with the cooling cavity are provided on the other surface; Wherein, the distances between the two opposite ends of the liquid guide surface along the second direction and the center of the cooling cavity are equal, and the second direction is perpendicular to the first direction; the volume of the cooling cavity is 1 / 10 to 3 / 10 of the volume of the block body, and the cavity walls on the two opposite sides of the cooling cavity along the second direction are planes, the two planes are parallel to each other and perpendicular to the second direction, and the distances between the two planes and the center of the cooling cavity in the second direction are equal, and the first direction is any one of the length direction, width direction or height direction of the block body.

2. The glass forming stopper according to claim 1, characterized in that: The liquid guiding surface extends from one end of the block body to the other end along the second direction.

3. The glass forming stopper according to claim 1, characterized in that: The thickness of the wall of the cooling cavity on the side close to the liquid guiding surface along the first direction is between 3 mm and 8 mm.

4. The glass forming stopper according to claim 2, characterized in that: A heat preservation groove is provided on one side of the block body along the third direction, the first direction, the second direction and the third direction are perpendicular to each other, and two heat preservation grooves are arranged one by one at intervals on opposite sides of the cooling cavity along the second direction; A first opening is provided on the groove wall of each of the heat preservation grooves on the side away from the liquid guiding surface along the first direction, and the first opening is communicated with the heat preservation groove.

5. The glass forming stopper according to claim 4, characterized in that: The glass forming block includes two heating elements, and the two heating elements are arranged in a one-to-one correspondence with the two heat preservation grooves, and each heating element is located in the corresponding heat preservation groove.

6. The glass forming stopper according to claim 5, characterized in that: The groove wall of each of the heat preservation grooves forms a heat preservation cavity, and each of the heat preservation cavity comprises a first heat preservation sub-cavity and a second heat preservation sub-cavity arranged at intervals along the first direction, the first heat preservation sub-cavity is communicated with the first opening, and the second heat preservation sub-cavity is located between the first heat preservation sub-cavity and the liquid guide surface and is communicated with the first heat preservation sub-cavity; The heating element is located in the first heat-insulating sub-cavity, and a dimension of the heating element along the third direction is smaller than a dimension of the first heat-insulating sub-cavity along the third direction.

7. The glass forming stopper according to claim 4, characterized in that: Each of the heat preservation grooves is away from the center of the cooling cavity along the second direction, and the distance between the center of the cooling cavity is a first value, and the first value is less than or equal to 1 / 2 of the size of the block body along the second direction; The insulation tank is close to the center of the cooling cavity along the second direction, and the distance between the center of the cooling cavity is a second value, and the second value is greater than the distance between the plane and the center of the cooling cavity in the second direction.

8. The glass forming stopper according to claim 1, characterized in that: A virtual symmetry plane is provided on the block body, and the virtual symmetry plane passes through the center of the cooling cavity and is perpendicular to the second direction; The liquid guide surface is symmetrically arranged along the second direction with respect to the virtual symmetry plane.

9. The glass forming stopper according to claim 8, characterized in that: The liquid guide surface is a curved surface, and the curved surface is concave toward the block body, and the curvature radius of the curved surface is between 400 mm and 900 mm.

10. A glass forming device, characterized in that: The glass forming stopper comprises the glass forming stopper as claimed in any one of claims 4 to 9, and a bottom mold plate and a side mold plate, wherein the bottom mold plate is located on the side of the stopper body where the heat preservation groove is provided, and contacts the stopper body; The side template is located on a side of the bottom template close to the block body, and two side templates are arranged one-to-one on opposite sides of the block body along the second direction, and each side template is in contact with the block body.

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