Glass forming device

By adjusting the position of the heating components in the glass forming device, the problem of low yield rate in large-diameter glass forming was solved, achieving a higher forming success rate and wider applicability.

CN223879625UActive Publication Date: 2026-02-06CDGM OPTICAL GLASS
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Patent Information

Application Number
CN202520438590.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-06
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

In existing glass forming equipment, the yield rate of large-diameter glass is relatively low.

Method used

By setting the first adjustment component, the relative position of the second heating component and the bearing surface is adjusted, thereby enhancing the heating effect, preventing the molten glass from solidifying before it is formed, and making it suitable for the temperature requirements of different glass specifications.

Benefits of technology

It improves the yield rate of large-diameter glass forming and expands the applicability of the equipment to the production of glass of different specifications.

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Abstract

The utility model relates to a glass forming device. The glass forming device comprises a bottom support and a soaking cover assembly connected to the bottom support, and the soaking cover assembly comprises a first base which comprises a bearing face used for bearing a mold; the soaking cover is arranged on the bearing surface and comprises a top wall spaced from the bearing surface, and a first heating component is arranged on the side, facing the bearing surface, of the top wall; the heating assembly comprises a second heating part and a first adjusting assembly which are connected with each other, the second heating part is arranged on one side of the bearing surface of the first base through the first adjusting assembly, and the first adjusting assembly is used for adjusting the relative position of the second heating part and the bearing surface. The glass forming device disclosed by the utility model can improve the forming yield of large-diameter glass.
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Description

TECHNICAL FIELD

[0001] The utility model relates to glass forming technical field, in particular to a glass forming device. BACKGROUND

[0002] Large aperture glass is applied in astronomical observation field such as large telescope, reflector and the like due to the advantages of large monomer size, good optical property, strong chemical stability, controlled expansion and the like. Large aperture glass is generally formed by glass forming device. The common glass forming device currently generally comprises a mold and a heat equalizing cover arranged above the mold, the heat equalizing cover can heat preservation and heating to the forming glass liquid flowing into the mold to assist the forming of glass block in the mold. However, in the glass forming device in the related art, there is a problem of low forming yield of large aperture glass. SUMMARY

[0003] Therefore, it is necessary to provide a glass forming device capable of improving the forming yield of large aperture glass.

[0004] The application provides a glass forming device, which comprises a bottom support and a heat equalizing cover assembly connected to the bottom support, and the heat equalizing cover assembly comprises:

[0005] a first base comprising a bearing surface for bearing a mold;

[0006] a heat equalizing cover arranged on the bearing surface, the heat equalizing cover comprising a top wall arranged in a spaced-apart manner with the bearing surface, and the top wall being provided with a first heating component on the side facing the bearing surface; and

[0007] a heating assembly comprising a second heating component and a first adjusting assembly connected to each other, the second heating component being arranged on the side of the bearing surface of the first base through the first adjusting assembly, and the first adjusting assembly being used for adjusting the relative position of the second heating component and the bearing surface.

[0008] In one of the embodiments, the first adjusting assembly comprises a support rod and a connecting support, the support rod is fixedly connected to the first base, the connecting support is connected to the second heating component, and the support rod and the connecting support are slidingly connected in the direction perpendicular to the bearing surface.

[0009] In one of the embodiments, the number of the support rods is two, and the two support rods are respectively located on the opposite sides of the heat equalizing cover.

[0010] The connecting support comprises two longitudinal rods and a transverse rod, and the two ends of the transverse rod are respectively connected to the two longitudinal rods.

[0011] The longitudinal rods are slidingly connected to the support rods in a one-to-one correspondence, and the transverse rod is connected to the second heating component.

[0012] In one of the embodiments, the projection of the second heating component and the transverse rod on the bearing surface does not overlap with the projection of the top wall and the first heating component connected on the top wall on the bearing surface.

[0013] In one of the embodiments, the support rod is provided with a first guide rail, and the corresponding longitudinal rod is provided with a first sliding block, the first sliding block and the first guide rail are in sliding fit, so that the longitudinal rod and the corresponding support rod are in sliding connection.

[0014] In one of the embodiments, the first adjusting assembly further comprises a first lifting unit corresponding to the support rod, and the first lifting unit is fixedly connected with the connecting bracket through a first lifting screw rod, so as to drive the connecting bracket to slide relative to the support rod.

[0015] In one of the embodiments, the glass forming device further comprises a lifting bracket assembly connected to the bottom support, and the lifting bracket assembly comprises a second base and a second lifting unit arranged on the second base.

[0016] The second lifting unit is fixedly connected with the first base through a second lifting screw rod, so as to drive the first base to lift relative to the second base.

[0017] In one of the embodiments, the number of the second lifting screw rods is at least two, and the at least two second lifting screw rods are parallel and spaced apart.

[0018] The second lifting unit further comprises a driving motor and a steering device in transmission connection with the driving motor, and the steering device is used for transmitting the driving force of the driving motor to each second lifting screw rod.

[0019] In one of the embodiments, the lifting bracket assembly and the bottom support are in sliding connection along a preset direction, and the preset direction is parallel to the bearing surface.

[0020] In one of the embodiments, the bottom support is connected with a second guide rail, and the second base is connected with a second sliding block, the second sliding block and the second guide rail are in sliding fit, so that the second base and the bottom support are in sliding connection.

[0021] The above glass forming device has the following beneficial effects:

[0022] By setting the first adjusting assembly, the first adjusting assembly is used to adjust the relative position of the second heating component and the second bearing surface. When a glass with a larger molding size is needed, the distance between the second heating component and the bearing surface can be adjusted to be smaller through the first adjusting assembly based on the heating by the first heating component, so that the second heating component is closer to the mold on the bearing surface, the temperature is improved, and the situation that the glass liquid in the mold has not been molded but solidified is avoided, thereby improving the yield rate in the molding production process of the large high-precision glass. In addition, since the distance between the second heating component and the mold is adjustable, the glass molding device of the present application can also be suitable for the temperature requirements in the production of different specifications of glass, and has wider applicability. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A structure schematic view of a glass molding device provided by an embodiment of the present application is shown in the figure;

[0024] Figure 2 A partial enlarged view of A in FIG. 1; Figure 1

[0025] Figure 3 A partial enlarged view of B in FIG. 1; Figure 1

[0026] Figure 4 A side view of a glass molding device provided by an embodiment of the present application is shown in the figure;

[0027] Figure 5 A front view of a glass molding device provided by an embodiment of the present application is shown in the figure.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 100, a glass molding device;

[0030] 10, a bottom support; 11, a leg; 12, a second guide rail;

[0031] 20, a heat uniformizing cover assembly;

[0032] 30, a first base; 31, a bearing surface; 32, an auxiliary bearing member;

[0033] 40, a heat uniformizing cover; 41, a top wall; 42, a side wall;

[0034] 50, a heating assembly; 510, a second heating component;

[0035] 60, a first adjusting assembly; 61, a support rod; 611, a first guide rail; 62, a connecting support; 621, a longitudinal rod; 6210, a first sliding block; 622, a transverse rod; 623, a transition rod; 63, a first lifting unit; 631, a first lifting lead screw; 632, a first support; 633, a hand wheel; ​​

[0036] 70, lifting bracket assembly; 71, second base; 711, second sliding block; 72, second lifting unit; 721, second lifting screw; 722, second support; 723, driving motor; 724, steering gear; 725, speed reducer;

[0037] Q, front-rear direction. DETAILED DESCRIPTION

[0038] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of ways other than those specifically described herein, and it is to be understood that various modifications can be made in form, function and implementation of the present application without departing from the spirit and essential characteristics of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0041] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0043] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and are not the only embodiment.

[0044] Figure 1 The structure schematic view of the glass forming device provided by the embodiment of the application is shown in the figure; Figure 2 The partial enlarged view of A of the figure Figure 1 The partial enlarged view of B of the figure Figure 3 The partial enlarged view of B of the figure Figure 1 The side view of the glass forming device provided by the embodiment of the application is shown in the figure; Figure 4 The front view of the glass forming device provided by the embodiment of the application is shown in the figure. Figure 5

[0045] The glass forming device of the embodiment of the application will be described below with reference to the accompanying drawings. In the present application, the glass forming device is taken as an example to form large-diameter glass, for example, it can be used to form a large glass strip with a maximum width of 1000mm. For forming other sizes and other types of formed glass, it is similar to this, and will not be repeated here.

[0046] Referring to Figure 1 ​The glass forming device 100 provided by the embodiment of the present application comprises a bottom support 10 and a heat uniformizing cover assembly 20 connected to the bottom support 10, and the heat uniformizing cover assembly 20 comprises a first base 30, a heat uniformizing cover 40 and a heating assembly 50. The first base 30 comprises a bearing surface 31 for bearing a mold. The heat uniformizing cover 40 is arranged on the bearing surface 31, and the heat uniformizing cover 40 comprises a top wall 41 arranged in a spaced manner with the bearing surface 31, and the top wall 41 is provided with a first heating component (not shown) on the side facing the bearing surface 31. The heating assembly 50 comprises a second heating component 510 and a first adjusting assembly 60 connected with each other, and the second heating component 510 is arranged on the side of the bearing surface 31 of the first base 30 through the first adjusting assembly 60, and the first adjusting assembly 60 is used for adjusting the relative position of the second heating component 510 and the bearing surface 31.

[0047] By arranging the first adjusting assembly 60, the first adjusting assembly 60 is used for adjusting the relative position of the second heating component 510 and the bearing surface 31. When a glass with a large forming size is needed, the distance between the second heating component 510 and the bearing surface 31 can be adjusted to be small through the first adjusting assembly 60 on the basis of the heating by the first heating component, so that the second heating component 510 is close to the mold on the bearing surface 31, the temperature is improved, and thus the situation that the glass liquid in the mold is not yet formed but solidified is avoided, so as to improve the yield rate in the forming production process of the large high-precision glass. In addition, since the distance between the second heating component 510 and the mold is adjustable, the glass forming device 100 of the present application can also be suitable for the temperature requirement in the production of different specifications of glass, and the applicability is wider.

[0048] In the embodiment of the present application, the first heating component can be a resistance wire, a carbon rod box or the like. The second heating component 510 can be a carbon rod box or the like. The number of the second heating component 510 can be one or more according to actual needs. The side of the bottom support 10 away from the heat uniformizing cover assembly 20 can be provided with a plurality of supporting legs 11 to support the bottom support 10.

[0049] In some embodiments, in combination with Figure 1 and Figure 5 The heat uniformizing cover 40 further comprises two side walls 42 connected to the bearing surface 31 of the first base 30, and the two ends of the top wall 41 are connected to the two side walls 42 respectively, so that the heat uniformizing cover 40 is actually arranged on the bearing surface 31 of the first base 30 and cooperates with the first base 30 to enclose a reaction chamber. The surface of the side wall 42 facing the reaction chamber can also be provided with a first heating component (not shown). The two side walls 42 can be L-shaped, and the top wall 41 can be in the shape of a long strip plate.

[0050] The first base 30 can be a plate-shaped member, and a plurality of auxiliary bearing members 32 can be arranged on the bearing surface 31 of the first base 30. The mold is arranged on the auxiliary bearing members 32 and is borne on the bearing surface 31 through the auxiliary bearing members 32.

[0051] In the embodiments of the present application, in combination with Figure 1 and Figure 3 , the first adjusting assembly 60 comprises a support rod 61 and a connecting bracket 62. The support rod 61 is fixedly connected to the first base 30, and the connecting bracket 62 is connected to the second heating component 510. The support rod 61 and the connecting bracket 62 are slidingly connected in a direction perpendicular to the bearing surface 31.

[0052] In this way, when the connecting bracket 62 slides relative to the support rod 61 in a direction perpendicular to the bearing surface 31 to approach or move away from the bearing surface 31, the second heating component 510 connected to the connecting bracket 62 can approach or move away from the mold placed on the bearing surface 31 in the direction.

[0053] In combination with Figure 1 and Figure 5 , the support rod 61 can be a long strip-shaped rod structure. The support rod 61 and the connecting bracket 62 are slidingly connected in a direction perpendicular to the bearing surface 31, which means that the support rod 61 and the connecting bracket 62 can slide relative to each other, and the sliding direction is along a direction perpendicular to the bearing surface 31.

[0054] In the embodiments of the present application, the number of support rods 61 can be two, and the two support rods 61 are located on opposite sides of the heat sink 40. Specifically, the two support rods 61 can be located on opposite sides of the two side walls 42.

[0055] In combination with Figure 1 and Figure 3 , for example, the connecting bracket 62 comprises two longitudinal rods 621 (one of the longitudinal rods 621 is shown in Figure 3 ) and a transverse rod 622. The two ends of the transverse rod 622 are connected to the two longitudinal rods 621, respectively. The longitudinal rods 621 are slidingly connected to the support rods 61 one by one, and the transverse rod 622 is connected to the second heating component 510.

[0056] For example, the second heating component 510 can be connected to the side of the transverse rod 622 facing the first base 30. The number of second heating components 510 can be two or more, and these second heating components 510 can be connected to the transverse rod 622 at intervals. Alternatively, the number of second heating components 510 can also be one. Of course, regardless of the number of second heating components 510, the second heating components 510 need to be corresponded to the mold on the bearing surface, so that the second heating components 510 are arranged above the mold.

[0057] In the embodiment of the present application, the projection of the second heating component 510 and the transverse rod 622 on the bearing surface 31 does not overlap with the projection of the top wall 41 and the first heating component connected to the top wall 41 on the bearing surface 31.

[0058] In this way, the second heating component 510 will not interfere with the first heating component connected to the top wall 41 when it is close to or away from the bearing surface 31. In addition, in this way, the first heating component and the second heating component 510 can correspond to different areas of the mold on the bearing surface 31, so that the first heating component and the second heating component 510 heat different areas in the mold. Compared with the scheme of heating only by the heat shield 40, since heating is performed in a larger range, it is more suitable for the high-precision forming production requirements of large-size glass.

[0059] For example, in combination with Figure 1 and Figure 4 , the transverse rod 622 and the second heating component 510 are located on the front side of the top wall 41, and in addition, the transition rod 623 is connected between the transverse rod 622 and the longitudinal rod 621, and the transverse rod 622, the transition rod 623 and the longitudinal rod 621 are perpendicular to each other. The transition rod 623 can extend along the front-back direction, so that the transverse rod 622 is spaced apart from the top wall 41 along the front-back direction Q.

[0060] In the embodiment of the present application, in combination with Figure 3 , the support rod 61 is provided with a first guide rail 611, and the corresponding longitudinal rod 621 is provided with a first sliding block 6210, and the first sliding block 6210 is in sliding fit with the first guide rail 611, so that the longitudinal rod 621 and the corresponding support rod 61 are in sliding connection.

[0061] The first guide rail 611 can be arranged on the side of the support rod 61 away from the heat shield 40, so that the movement of the longitudinal rod 621 along the first guide rail 611 will not interfere with the heat shield 40.

[0062] In the embodiment of the present application, in combination with Figure 1 and Figure 3 , the first adjusting assembly 60 further comprises a first lifting unit 63 arranged one-to-one with the support rod 61, and the first lifting unit 63 is fixedly connected with the connecting bracket 62 through a first lifting screw rod 631, so as to drive the connecting bracket 62 to slide relative to the support rod 61.

[0063] The first lifting unit 63 can further include a first support 632, a hand wheel 633, and a transmission structure such as a worm gear (not shown) cooperating with the first lifting screw rod 631. The first support 632 can be connected to the support rod 61, the worm gear is in transmission cooperation with the first lifting screw rod 631 and is arranged on the first support 632, the worm gear is further connected with the hand wheel 633, and the first lifting screw rod 631 is driven to move up and down along the axial direction of itself by rotating the hand wheel 633 to drive the worm gear to rotate. The first lifting screw rod 631 can drive the connecting bracket 62 to move along the axial direction of the first lifting screw rod 631 relative to the support rod 61. In the case of two first lifting units 63, each first lifting screw rod 631 is connected with a longitudinal rod 621 in the connecting bracket 62.

[0064] In the embodiment of the present application, in combination with Figure 1 and Figure 2 The glass forming device 100 further includes a lifting bracket assembly 70 connected to the bottom bracket 10, and the lifting bracket assembly 70 includes a second base 71 and a second lifting unit 72 arranged on the second base 71.

[0065] The second lifting screw rod 721 of the second lifting unit 72 is fixedly connected with the first base 30 to drive the first base 30 to lift relative to the second base 71. In this way, the lifting of all components arranged on the first base 30 can be realized.

[0066] In the embodiment of the present application, the number of the second lifting screw rods 721 is at least two, and the at least two second lifting screw rods 721 are arranged in parallel and spaced apart from each other. The second lifting unit 72 further includes a driving motor 723 and a steering gear 724 in transmission connection with the driving motor 723, and the steering gear 724 is used to transmit the driving force of the driving motor 723 to each second lifting screw rod 721.

[0067] The second lifting unit 72 can further include a worm gear (not shown) corresponding to the second lifting screw rod 721 and a second support 722, and each second lifting screw rod 721 corresponds to a set of worm gears and second supports 722. The worm gear is in transmission connection with the second lifting screw rod 721, and the second support 722 is connected to the second base 71 and is used to support the worm gear and the second lifting screw rod 721.

[0068] When the number of the second lifting screw rods 721 is multiple, the power output by the driving motor 723 can be distributed into multiple paths through the steering gear 724, and then transmitted to each second lifting screw rod 721 through the corresponding worm gear of each second lifting screw rod 721. For example, when the number of the second lifting screw rods 721 is four, the number of the steering gears 724 can be three.

[0069] In addition, the reducer 725 can be further connected between the driving motor 723 and the steering device 724. The driving by the driving motor 723 can sensitively adjust the lifting of the first base 30. In addition, the lifting by the driving motor 723 can not only ensure the rapid lifting requirement, but also ensure the stability of the lifting, and can also reduce the pressure of the labor production personnel.

[0070] In the embodiment, the lifting bracket assembly 70 is slidably connected with the bottom support 10 along a preset direction, which is parallel to the bearing surface 31, for example, the front-rear direction Q.

[0071] In this way, the relative position of the lifting bracket assembly 70 and the bottom support 10 can be adjusted. During the forming production process, the heat shield 40, the mold and the like can be freely moved and adjusted in position to meet the position condition in the production process.

[0072] Further, referring to Figure 1 and Figure 2 The second guide rail 12 is connected to the bottom support 10, and the second sliding block 711 is connected to the second base 71, and the second sliding block 711 is slidably connected with the second guide rail 12, so that the second base 71 is slidably connected with the bottom support 10.

[0073] The number of the second guide rail 12 can be two, and the number of the second sliding block 711 corresponding to each second guide rail 12 can be two. In this way, the two second guide rails 12 are arranged at intervals, and the two second sliding blocks 711 are arranged at intervals, and the four second sliding blocks 711 can be connected to four different positions on the second base 71.

[0074] The technical features of the above-described embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0075] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A glass forming apparatus, characterized by, The glass forming device comprises a bottom support and a heat cover assembly connected to the bottom support, wherein the heat cover assembly comprises: a first base comprising a bearing surface for bearing a mold; a heat cover arranged on the bearing surface, wherein the heat cover comprises a top wall arranged in a spaced manner with the bearing surface, and a first heating component arranged on a side of the top wall facing the bearing surface; and a heating assembly comprising a second heating component and a first adjusting assembly connected to each other, wherein the second heating component is arranged on a side of the bearing surface of the first base through the first adjusting assembly, and the first adjusting assembly is used for adjusting the relative position between the second heating component and the bearing surface.

2. The glass forming apparatus of claim 1, wherein, The first adjusting assembly comprises a support rod and a connecting support, wherein the support rod is fixedly connected to the first base, the connecting support is connected to the second heating component, and the support rod and the connecting support are slidingly connected in a direction perpendicular to the bearing surface.

3. The glass forming apparatus of claim 2, wherein, The number of the support rods is two, and the two support rods are respectively arranged on opposite sides of the heat cover. The connecting support comprises two longitudinal rods and a transverse rod, and two ends of the transverse rod are respectively connected to the two longitudinal rods. The longitudinal rods are slidingly connected to the support rods in a one-to-one correspondence, and the transverse rod is connected to the second heating component.

4. The glass forming apparatus of claim 3, wherein, The projection of the second heating component and the transverse rod on the bearing surface does not overlap with the projection of the top wall and the first heating component connected to the top wall on the bearing surface.

5. The glass forming apparatus of claim 3, wherein, First guide rails are arranged on the support rods, and first sliding blocks are arranged on the corresponding longitudinal rods in a sliding fit with the first guide rails, so that the longitudinal rods and the corresponding support rods are slidingly connected.

6. The glass forming apparatus of claim 2, wherein, The first adjusting assembly further comprises a first lifting unit arranged in a one-to-one correspondence with the support rods, and a first lifting screw of the first lifting unit is fixedly connected to the connecting support to drive the connecting support to slide relative to the support rods.

7. The glass forming apparatus of claim 1, wherein, The glass forming device further comprises a lifting bracket assembly connected to the bottom support, wherein the lifting bracket assembly comprises a second base and a second lifting unit arranged on the second base; a second lifting screw of the second lifting unit is fixedly connected to the first base to drive the first base to lift relative to the second base.

8. The glass forming apparatus of claim 7, wherein, The number of the second lifting screws is at least two, and the at least two second lifting screws are arranged in parallel and in a spaced manner. The second lifting unit further comprises a driving motor and a steering device in transmission connection with the driving motor, and the steering device is used for transmitting the driving force of the driving motor to each second lifting screw.

9. The glass forming apparatus of claim 7, wherein, The lifting bracket assembly and the bottom support are slidingly connected in a preset direction, and the preset direction is parallel to the bearing surface.

10. The glass forming apparatus of claim 9, wherein, Second guide rails are arranged on the bottom support, and second sliding blocks are arranged on the second base in a sliding fit with the second guide rails, so that the second base and the bottom support are slidingly connected.