Glass hot bending forming die

Abstract

The utility model relates to a glass hot bending forming die which comprises an upper die used for forming the upper surface of glass; the lower mold is used for molding the lower surface of the glass; wherein the upper mold includes: a first upper edge molding surface configured to bend upward in a first direction; a second upper edge molding surface configured to bend upward in a second direction; and / or the lower mold includes: a first lower edge molding surface configured to bend upward in a first direction; a second lower edge molding surface configured to bend upward in a second direction; wherein the first direction is intersected with the second direction. The glass hot bending forming mold has the beneficial effect that the edge forming surfaces are arranged in different directions to meet the forming requirements of different edge bending forms.

Description

Technical Field

[0001] The present application relates to the field of mold technology, and in particular to a glass hot bending molding mold. Background Art

[0002] Currently, 3D curved glass is widely used in various fields due to its unique design and excellent performance. The edges of 3D curved glass are designed to be curved, but existing hot bending molds are difficult to meet the molding requirements of multiple different edge curvatures on the same glass. Utility Model Content

[0003] The embodiment of the present application provides a glass hot bending forming mold that can meet the forming requirements of different edge bending shapes, so as to at least partially solve the above-mentioned technical problems.

[0004] In order to achieve the above-mentioned object, according to a first aspect of the present application, a glass hot bending forming mold is provided, comprising:

[0005] Upper mold, used to shape the upper surface of the glass;

[0006] Lower mold, used to shape the lower surface of the glass;

[0007] Wherein, the upper mold comprises:

[0008] a first upper edge forming surface configured to bend upward in a first direction;

[0009] a second upper edge forming surface configured to bend upward in a second direction;

[0010] And / or the lower mold includes:

[0011] a first lower edge forming surface configured to bend upward in a first direction;

[0012] a second lower edge forming surface configured to bend upward in a second direction;

[0013] The first direction intersects with the second direction.

[0014] Optionally, the upper mold includes two second upper edge forming surfaces, and the first upper edge forming surface is arranged between the two second upper edge forming surfaces; and / or

[0015] The lower mold includes two second lower edge forming surfaces, and the first lower edge forming surface is arranged between the two second lower edge forming surfaces.

[0016] Optionally, the two second upper edge forming surfaces are symmetrically arranged relative to the first upper edge forming surface; and / or

[0017] The two second lower edge forming surfaces are symmetrically arranged relative to the first lower edge forming surface.

[0018] Optionally, the upper mold further includes:

[0019] an upper transition forming surface, forming a transition connection between the first upper edge forming surface and the second upper edge forming surface;

[0020] And / or the lower die also includes:

[0021] The lower transition forming surface forms a transition connection between the first lower edge forming surface and the second lower edge forming surface.

[0022] Optionally, the upper transition forming surface is a smooth curved surface, and is tangent to the first upper edge forming surface and the second upper edge forming surface respectively; and / or

[0023] The lower transition forming surface is a smooth curved surface and is tangent to the first lower edge forming surface and the second lower edge forming surface respectively.

[0024] Optionally, the upper mold further includes:

[0025] an upper main forming surface, wherein the first upper edge forming surface and the second upper edge forming surface are respectively provided at edges of the upper main forming surface;

[0026] And / or the lower die also includes:

[0027] The lower main forming surface, the first lower edge forming surface and the second lower edge forming surface are respectively arranged on the edges of the lower main forming surface.

[0028] Optionally, the first upper edge forming surface and the second upper edge forming surface are smoothly transitioned to the upper main forming surface respectively; and / or

[0029] The first lower edge forming surface and the second lower edge forming surface are respectively smoothly transitioned to the lower main forming surface.

[0030] Optionally, the upper mold includes:

[0031] a first upper edge forming surface configured to bend upward in a first direction;

[0032] a second upper edge forming surface configured to bend upward in a second direction;

[0033] Wherein, the upper mold is constructed to have a convex block, and the first upper edge forming surface and the second upper edge forming surface at least constitute at least a portion of the outer wall of the convex block;

[0034] The lower die comprises:

[0035] a first lower edge forming surface configured to bend upward in a first direction;

[0036] a second lower edge forming surface configured to bend upward in a second direction;

[0037] The lower mold is constructed with a cavity, and the first lower edge molding surface and the second lower edge molding surface constitute at least part of the cavity wall of the cavity; the cavity wall and the outer wall act on opposite sides of the glass during hot bending.

[0038] Optionally, the lower mold has or is connected to: a first material discharge structure and a second material discharge structure;

[0039] The first discharge structure and the second discharge structure are spaced apart in the first direction so that the glass can be supported on the lower mold in a preset state during discharge.

[0040] Optionally, the first discharging structure includes:

[0041] The first supporting surface is used to support one side of the glass during unloading;

[0042] The second discharging structure includes:

[0043] The second supporting surface is used to support the other side of the glass during unloading;

[0044] Wherein, the first supporting surface and the second supporting surface are respectively inclined.

[0045] Optionally, the first discharging structure includes:

[0046] a first guiding surface, used to guide one side edge of the glass to contact the first supporting surface;

[0047] Wherein, the first guide surface is transitionally connected to the first support surface;

[0048] The second discharging structure includes:

[0049] a second guiding surface, used to guide the other side edge of the glass to contact with the second supporting surface;

[0050] Wherein, the second guide surface is transitionally connected to the second supporting surface.

[0051] Optionally, the first supporting surface and the first upper edge forming surface have a smooth transition, and an angle between the first supporting surface and the first upper edge forming surface is greater than 90°.

[0052] Optionally, the glass hot bending forming mold further includes:

[0053] The insert is formed with the second material discharge structure;

[0054] The insert is detachably connected to the lower mold, and the cavity is at least composed of the insert and the lower mold.

[0055] Optionally, the lower mold has a mounting groove, and at least a portion of the insert is embedded in the mounting groove.

[0056] Optionally, the lower mold further includes:

[0057] a fixing hole for allowing a fastener to pass through so as to fix the insert to the lower mold;

[0058] Wherein, the fixing hole is communicated with the installation groove.

[0059] Optionally, the upper mold has a first limiting structure, and the lower mold has a second limiting structure;

[0060] The first limiting structure cooperates with the second limiting structure to enable the upper mold and the lower mold to press the glass at a preset pressing amount.

[0061] Optionally, the first limiting structure is configured to include a limiting groove, and the second limiting structure is configured to include a limiting protrusion;

[0062] When the upper mold and the lower mold are pressing the glass, the top surface of the limiting protrusion abuts against the upper groove wall of the limiting groove.

[0063] Optionally, the first limiting structure is configured to include a first end surface, and the second limiting structure is configured to include a second end surface;

[0064] When the upper mold and the lower mold press the glass, the first end surface abuts against the second end surface.

[0065] Optionally, the upper mold comprises:

[0066] Two first guide structures are spaced apart in the first direction;

[0067] The lower mold comprises:

[0068] two second guide structures, spaced apart in the first direction;

[0069] The first guide structure cooperates with the second guide structure to provide guidance when the upper die and the lower die are pressed together.

[0070] Optionally, the first guide structure is configured to include first guide surfaces, and in the first direction, the protrusion is located between two first guide surfaces;

[0071] The second guide structure is configured to include second guide surfaces, and in the first direction, the cavity is located between two second guide surfaces.

[0072] Optionally, the upper mold comprises:

[0073] Two first positioning structures are spaced apart in the second direction;

[0074] The lower mold comprises:

[0075] two second positioning structures, spaced apart in the second direction;

[0076] The first positioning structure cooperates with the second positioning structure to provide guidance when the upper mold and the lower mold are pressed together.

[0077] Optionally, the first positioning structure is constructed to include first positioning surfaces, and in the second direction, the protrusion is located between two first positioning surfaces;

[0078] The second positioning structure is configured to include second positioning surfaces, and in the second direction, the cavity is located between two second positioning surfaces.

[0079] Optionally, the upper mold comprises:

[0080] A first mold opening structure, used for being clamped by an external device to realize mold opening;

[0081] And / or the lower mold has:

[0082] The second mold opening structure is used for being clamped by external equipment to realize mold opening.

[0083] Optionally, the first mold opening structure is configured to include a first mold opening groove, and the first mold opening groove is formed on an outer side wall of the upper mold;

[0084] The second mold opening structure is configured to include a second mold opening groove, and the second mold opening groove is formed on the outer side wall of the lower mold.

[0085] The beneficial effect of the present application is that it provides a glass hot bending forming mold that meets the forming requirements of different edge bending shapes by setting edge forming surfaces in different directions.

[0086] More specifically, some embodiments of the present application may produce the following specific beneficial effects:

[0087] By setting edge forming surfaces in different directions, different edge areas of the glass can be hot-bent separately to meet the forming requirements of different edge bending shapes.

[0088] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] To more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0090] In order to more completely understand the present application and its beneficial effects, the following description will be given in conjunction with the accompanying drawings, wherein the same drawing numbers represent the same parts in the following description.

[0091] Figure 1 Schematic diagram of the overall structure of the glass hot bending molding mold provided in an exemplary embodiment of the present application;

[0092] Figure 2 Schematic diagram of the structure of the lower mold and insert in the glass hot bending molding mold provided in an exemplary embodiment of the present application;

[0093] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0094] Figure 4 2. It is a structural schematic diagram of the lower mold and insert in the glass hot bending molding mold provided in an exemplary embodiment of the present application from another perspective;

[0095] Figure 5 1 is a top view of a lower mold and an insert in a glass hot bending mold provided in an exemplary embodiment of the present application;

[0096] Figure 6 Schematic diagram of the structure of the upper mold in the glass hot bending molding mold provided in an exemplary embodiment of the present application;

[0097] Figure 7 2D glass is placed in the lower mold of the glass hot bending mold provided in the exemplary embodiment of the present application;

[0098] Figure 8 is an internal cross-sectional view of a glass bending mold provided in an exemplary embodiment of the present application before bending;

[0099] Figure 9 yes Figure 8 An enlarged schematic diagram of part B;

[0100] Figure 10 yes Figure 8 A magnified schematic diagram of part C;

[0101] Figure 11 is an internal cross-sectional view of a glass bending mold after bending molding provided in an exemplary embodiment of the present application;

[0102] Figure 12 yes Figure 11 An enlarged schematic diagram of part D in the middle;

[0103] Figure 13 is a schematic structural diagram of 2D glass provided in an exemplary embodiment of the present application;

[0104] Figure 14 Schematic diagram of the structure of 3D glass provided in an exemplary embodiment of the present application.

[0105] Description of reference numerals:

[0106] 100. Glass hot bending forming mold;

[0107] 110. Upper mold;

[0108] 111, bump; 111a, first upper edge forming surface; 111b, second upper edge forming surface; 111c, upper transition forming surface; 111d, upper main forming surface;

[0109] 112, limiting groove; 113, first end surface; 114, first guide surface; 115, first positioning surface;

[0110] 116, first die slot;

[0111] 120, lower die;

[0112] 121, cavity; 121a, first lower edge molding surface; 121b, second lower edge molding surface; 121c, lower transition molding surface; 121d, lower main molding surface;

[0113] 122, limiting protrusion; 123, second end surface; 124, second guide surface; 125, second positioning surface; 126, second mold opening groove;

[0114] 127, mounting slot; 128, fixing hole;

[0115] 129, first material discharge structure; 129a, first supporting surface; 129b, first guiding surface;

[0116] 130, insert; 131, second material discharge structure; 131a, second supporting surface; 131b, second guide surface;

[0117] D1, up and down direction; D2, first direction; D3, second direction; P1, first projection plane; P2, second projection plane;

[0118] 201, 2D glass; 202, 3D glass. DETAILED DESCRIPTION

[0119] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0120] Reference Figure 1 、 Figures 4 to 6 The present application provides a glass hot bending mold 100, comprising an upper mold 110 and a lower mold 120. The upper mold 110 is used to shape the upper surface of the glass; the lower mold 120 is used to shape the lower surface of the glass. The upper surface and the lower surface are opposite surfaces on the glass.

[0121] The upper mold 110 includes a first upper edge molding surface 111 a and a second upper edge molding surface 111 b. The first upper edge molding surface 111 a is configured to bend upward in a first direction D2; the second upper edge molding surface 111 b is configured to bend upward in a second direction D3.

[0122] The lower mold 120 includes a first lower edge molding surface 121a and a second lower edge molding surface 121b. The first lower edge molding surface 121a is configured to bend upward in a first direction D2; the second lower edge molding surface 121b is configured to bend upward in a second direction D3. The first direction D2 and the second direction D3 intersect.

[0123] It should be noted that the up and down directions D1 of the present application are only for the convenience of introducing the specific embodiments of the present application and are only for the purpose of expressing the relative position relationship, and usually refer to the up and down in actual use or working state, for example Figure 1 Similarly, there is no absolute correspondence between the second direction D3 and the left-right direction, and between the third direction and the front-back direction.

[0124] The first direction D2 intersects the second direction D3 , which can be understood as the first direction D2 and the second direction D3 being arranged to be inclined to each other or perpendicular to each other.

[0125] The first lower edge molding surface 121a is configured to bend upward in the first direction D2. Figure 4 and Figure 5, which can be understood as follows: a first projection plane P1 is constructed by a plane parallel to the left-right direction and the up-down direction D1, and the projection profile of the first lower edge forming surface 121a on the first projection plane P1 is a curved shape. Similarly, the second lower edge forming surface 121b is configured to bend upward in the second direction D3. This can be understood as follows: a second projection plane P2 is constructed by a plane parallel to the front-back direction and the up-down direction D1, and the projection profile of the second lower edge forming surface 121b on the second projection plane P2 is a curved shape.

[0126] The bending manners of the first upper edge forming surface 111 a and the second upper edge forming surface 111 b are similar to those of the first lower edge forming surface 121 a and the second lower edge forming surface 121 b , and are not further described herein.

[0127] Through the above technical solution, by setting edge forming surfaces in different directions, different edge areas of the glass are hot-bent respectively, thereby meeting the forming requirements of different edge bending shapes.

[0128] As an optional solution, the first upper edge molding surface 111a and the second upper edge molding surface 111b can be provided only on the upper mold 110, and the lower mold 120 is not provided with a molding surface, and is only used to provide pressure to mold the glass according to the shapes of the first upper edge molding surface 111a and the second upper edge molding surface 111b; or, the first lower edge molding surface 121a and the second lower edge molding surface 121b can be provided only on the lower mold 120, and the upper mold 110 is not provided with a molding surface, and is only used to provide pressure to mold the glass according to the shapes of the first upper edge molding surface 111a and the second upper edge molding surface 111b; or, the first upper edge molding surface 111a and the second upper edge molding surface 111b are provided on the upper mold 110, and the first lower edge molding surface 121a and the second lower edge molding surface 121b are provided on the lower mold 120. Through the cooperation between the edge molding surfaces of the upper mold 110 and the edge molding surfaces of the lower mold 120, they are closely fitted to the glass during the hot bending molding process to guide the glass molding.

[0129] The following is for the convenience of distinction, refer to Figure 13 and Figure 14 , the glass that has not been heat-bent is defined as 2D glass 201, and the glass that has been heat-bent is defined as 3D glass 202.

[0130] In some embodiments, reference Figures 4 to 6 The upper mold 110 includes two second upper edge molding surfaces 111b, and the first upper edge molding surface 111a is arranged between the two second upper edge molding surfaces 111b.

[0131] The lower mold 120 includes two second lower edge molding surfaces 121 b , and the first lower edge molding surface 121 a is disposed between the two second lower edge molding surfaces 121 b .

[0132] Exemplarily, the lower mold 120 is constructed with a cavity 121, and the upper mold 110 is constructed with a protrusion 111. The 2D glass 201 is pressed together by the cooperation of the protrusion 111 and the cavity 121. The upper mold 110 has a first upper edge molding surface 111a only on one side of the protrusion 111 in the left-right direction, and a second upper edge molding surface 111b on both sides of the protrusion 111 in the front-back direction. Similarly, the lower mold 120 has a first lower edge molding surface 121a only on one side of the cavity 121 in the left-right direction, and a second lower edge molding surface 121b on both sides of the cavity 121 in the front-back direction.

[0133] By adopting such a solution, the mold of the present application can obtain a 3D glass 202 product with three-side edge curves through hot bending.

[0134] In some embodiments, reference Figures 4 to 6 The two second upper edge forming surfaces 111b are symmetrically arranged relative to the first upper edge forming surface 111a. It can be understood that the two second upper edge forming surfaces 111b are symmetrically arranged in the front-to-back direction.

[0135] The two second lower edge forming surfaces 121b are symmetrically arranged relative to the first lower edge forming surface 121a. It can be understood that the two second lower edge forming surfaces 121b are symmetrically arranged in the front-to-back direction.

[0136] By adopting such a solution, the hot bending forming mold of the present application can be suitable for the processing of 3D glass 202 products with symmetrical edge bending in the front-to-back direction and only one side edge bending in the left-to-right direction, that is, it can be suitable for the hot bending forming of 3D glass 202 with asymmetric structure.

[0137] In some embodiments, reference Figures 4 to 6 The upper mold 110 further includes an upper transition molding surface 111c. The upper transition molding surface 111c forms a transition connection between the first upper edge molding surface 111a and the second upper edge molding surface 111b.

[0138] The lower mold 120 further includes a lower transition molding surface 121c. The lower transition molding surface 121c forms a transition connection between the first lower edge molding surface 121a and the second lower edge molding surface 121b.

[0139] This solution avoids sudden changes in pressure at the junction of adjacent edge forming surfaces of the upper mold 110 or the lower mold 120, thereby effectively guiding the corresponding portion of glass at the junction and improving the hot bending forming quality.

[0140] In some embodiments, reference Figures 4 to 6The upper transition molding surface 111c is a smooth curved surface and is tangent to the first upper edge molding surface 111a and the second upper edge molding surface 111b respectively.

[0141] The lower transition molding surface 121c is a smooth curved surface and is tangent to the first lower edge molding surface 121a and the second lower edge molding surface 121b respectively.

[0142] By adopting such a solution, the edge of the 3D glass 202 obtained by the hot bending forming process has a streamlined appearance.

[0143] In some embodiments, reference Figures 4 to 6 The upper mold 110 further includes an upper main molding surface 111d, a first upper edge molding surface 111a, and a second upper edge molding surface 111b, which are respectively disposed on the edges of the upper main molding surface 111d.

[0144] The lower mold 120 further includes a lower main molding surface 121d. The lower main molding surface 121d, the first lower edge molding surface 121a and the second lower edge molding surface 121b are respectively disposed on the edges of the lower main molding surface 121d.

[0145] It can be understood that the upper main molding surface 111d and the lower main molding surface 121d are pressed together to obtain the non-edge curved portion of the 3D glass 202, that is, including the uncurved edge and the middle area surrounded by the edges.

[0146] By adopting such a solution, uniform pressure is provided to the entire upper and lower planes of the 2D glass 201 through the combination of the main forming surface and the edge forming surface, thereby obtaining a uniform 3D hot-bent glass product.

[0147] In some embodiments, reference Figures 4 to 6 The first upper edge molding surface 111a and the second upper edge molding surface 111b are respectively smoothly transitioned with the upper main molding surface 111d. It can be understood that the contours of the first upper edge molding surface 111a and the second upper edge molding surface 111b are respectively tangent to the contours of the upper main molding surface 111d.

[0148] The first lower edge molding surface 121a and the second lower edge molding surface 121b are respectively smoothly transitioned to the lower main molding surface 121d. It can be understood that the contours of the first lower edge molding surface 121a and the second lower edge molding surface 121b are respectively tangent to the contour of the lower main molding surface 121d.

[0149] This solution avoids sudden changes in pressure at the junction of the main forming surface and the edge forming surface, thereby effectively contacting and guiding the corresponding part of the glass at the junction and improving the quality of hot bending.

[0150] In some embodiments, reference Figures 4 to 6The upper mold 110 is constructed to have a protrusion 111 , and the first upper edge molding surface 111 a and the second upper edge molding surface 111 b constitute at least a portion of the outer wall of the protrusion 111 .

[0151] The lower mold 120 is constructed to have a cavity 121, and the first lower edge molding surface 121a and the second lower edge molding surface 121b constitute at least part of the cavity wall of the cavity 121; the cavity wall of the cavity 121 and the outer wall of the protrusion 111 act on the opposite sides of the glass during hot bending.

[0152] It can be understood that the first upper edge molding surface 111a, the second upper edge molding surface 111b, the upper transition molding surface 111c, and the upper main molding surface 111d are all formed on the outer wall of the protrusion 111. The first lower edge molding surface 121a, the second lower edge molding surface 121b, the lower transition molding surface 121c, and the lower main molding surface 121d are all formed on the cavity wall of the cavity 121.

[0153] In some embodiments, reference Figure 8 The lower mold 120 has or is connected to: a first discharge structure 129 and a second discharge structure 131. The first discharge structure 129 and the second discharge structure 131 are spaced apart in the first direction D2 so that the glass can be placed on the lower mold 120 in a preset state when discharging.

[0154] It is understood that the first unloading structure 129 and the second unloading structure 131 correspond to the long sides of the 2D glass 201 to ensure good stability during unloading. The preset state can be a state parallel to the lower main molding surface 121d, or other state that ensures stable placement of the 2D glass 201 in the lower mold 120. The first unloading structure 129 and the second unloading structure 131 can be directly installed on the lower mold 120, or installed on other components connected to the lower mold 120.

[0155] By adopting such a solution, the left and right sides of the 2D glass 201 are supported by the setting of the first discharge structure 129 and the second discharge structure 131, so as to achieve smooth discharge and ensure that the 2D glass 201 is naturally supported on the lower mold 120 to ensure force balance, avoid the 2D glass 201 from tilting during the hot bending process to affect the hot bending effect, and ensure the stability of the hot bending forming size.

[0156] In some embodiments, reference Figure 9 and Figure 10 The first unloading structure 129 includes a first supporting surface 129a. The first supporting surface 129a is used to support one side of the glass during unloading.

[0157] The second unloading structure 131 includes a second supporting surface 131a. The second supporting surface 131a is used to support the other side of the glass during unloading. The first supporting surface 129a and the second supporting surface 131a are respectively inclined.

[0158] It can be understood that the first supporting surface 129a and the second supporting surface 131a are inclined relative to the up and down direction D1, so that the first supporting surface 129a and the second supporting surface 131a form an open structure similar to an inverted trapezoid. When the 2D glass 201 is placed on the lower mold 120, the 2D glass 201 can rely on its own gravity to overlap the first supporting surface 129a and the second supporting surface 131a.

[0159] By adopting such a solution, the first supporting surface 129 a and the second supporting surface 131 a are provided, so that the 2D glass 201 can be easily discharged, and the supporting surface structure is simple and easy to process.

[0160] In some embodiments, reference Figure 9 and Figure 10 The first unloading structure 129 includes a first guiding surface 129b for guiding one side edge of the glass to contact the first supporting surface 129a; the first guiding surface 129b is transitionally connected to the first supporting surface 129a.

[0161] The second discharging structure 131 includes a second guiding surface 131b for guiding the other side edge of the glass to contact the second supporting surface 131a; the second guiding surface 131b is transitionally connected to the second supporting surface 131a.

[0162] Exemplarily, the first guide surface 129b and the first support surface 129a form an open slot, and the second guide surface 131b and the second support surface 131a also form an open slot; wherein, the distance between the first guide surface 129b and the second guide surface 131b is greater than or equal to the maximum distance between the first support surface 129a and the second support surface 131a.

[0163] With this solution, the first guide surface 129b and the second guide surface 131b are provided to guide the 2D glass 201 until it rests on the first support surface 129a and the second support surface 131a, facilitating the unloading operation of the 2D glass 201. Furthermore, when the 2D glass 201 rests on the first support surface 129a and the second support surface 131a, a clearance is created between the 2D glass 201 and the first guide surface 129b and the second guide surface 131b, facilitating unloading while preventing the 2D glass 201 from becoming stuck as a result of unloading.

[0164] In some embodiments, reference Figure 9 and Figure 10The first support surface 129a and the first upper edge molding surface 111a have a smooth transition, and the angle between the first support surface 129a and the first upper edge molding surface 111a is greater than 90 degrees. This ensures that the 2D glass 201 can smoothly enter the mold cavity 121 during the pressing process of the upper mold 110 and the lower mold 120.

[0165] Since the glass expands as the temperature rises during the hot bending process, the cavity wall of the cavity 121 can constrain and limit the 2D glass 201, avoiding uneven force during the hot bending process and affecting the hot bending size.

[0166] In some embodiments, reference Figures 1 to 3 、 Figure 7 and Figure 8 The glass hot bending mold 100 further includes an insert 130 . The insert 130 is formed with a second discharge structure 131 . The insert 130 is detachably connected to the lower mold 120 , and the cavity 121 is formed by at least the insert 130 and the lower mold 120 .

[0167] It is understood that the uncurved side of the 2D glass 201 is placed in correspondence with the insert 130. The replaceable insert 130 is used to fill the lower mold 120 and replace the lower mold 120 to constrain the uncurved side of the 2D glass 201, thereby reducing direct contact wear between the uncurved side of the 2D glass 201 and the mold, and reducing the replacement cost of the insert 130.

[0168] In some embodiments, reference Figures 1 to 3 、 Figure 8 The lower mold 120 has a mounting groove 127, and at least a portion of the insert 130 is embedded in the mounting groove 127. The arrangement of the mounting groove 127 facilitates the positioning of the insert 130 in the lower mold 120.

[0169] In some embodiments, reference Figures 1 to 3 、 Figure 8 The lower mold 120 further includes a fixing hole 128. The fixing hole 128 is communicated with the mounting groove 127 for passing a fastener to fix the insert 130 to the lower mold 120. The through hole is provided to facilitate the disassembly and replacement of the insert 130.

[0170] For example, the insert 130 may be a screw.

[0171] In some embodiments, the upper mold 110 has a first limiting structure and the lower mold 120 has a second limiting structure; the first limiting structure cooperates with the second limiting structure to enable the upper mold 110 and the lower mold 120 to press the glass at a preset pressing amount.

[0172] It can be understood that the preset pressing amount can be the pressing amount of the protrusion 111 in the cavity 121. Figure 11 and Figure 12 , under the pressing of the upper mold 110 and the lower mold 120, a 3D glass 202 of the required size is obtained.

[0173] With this solution, the 2D glass 201 softens as the temperature rises during hot bending, and the upper mold 110 is pressed down as the 2D glass 201 softens. By cooperating with the first limiting structure and the second limiting structure, the degree of downward pressure is limited, thereby improving the dimensional accuracy of the hot-bending glass product.

[0174] In some embodiments, reference Figures 4 to 6 The first limiting structure includes a limiting groove 112, and the second limiting structure includes a limiting protrusion 122. When the upper mold 110 and the lower mold 120 are pressed together, the top surface of the limiting protrusion 122 abuts against the upper wall of the limiting groove 112. The cooperation between the limiting protrusion 122 and the limiting groove 112 limits the degree of pressing between the upper mold 110 and the lower mold 120. The structure is simple, facilitating mold processing.

[0175] For example, the upper mold 110 is provided with two limiting grooves 112 in the front-to-back direction, and the lower mold 120 is provided with two limiting protrusions 122 in the front-to-back direction to ensure the uniformity of the pressing amount in the front-to-back direction.

[0176] In some embodiments, reference Figures 4 to 6 The first limiting structure is constructed to include a first end surface 113, and the second limiting structure is constructed to include a second end surface 123; when the upper mold 110 and the lower mold 120 press the glass, the first end surface 113 and the second end surface 123 abut against each other.

[0177] Exemplarily, the left and right sides of the upper mold 110 are both provided with first end faces 113 , and the left and right sides of the lower mold 120 are both provided with second end faces 123 , so as to ensure uniformity of the pressing amount in the left and right directions.

[0178] In some embodiments, the upper mold 110 has: a first guide structure, two first guide structures are provided, and the two first guide structures are spaced apart in the first direction D2 (ie, the left-right direction);

[0179] The lower mold 120 includes two second guide structures, spaced apart in the first direction D2. The first and second guide structures cooperate to provide guidance during the pressing of the upper and lower molds 110, 120. This prevents left-right shaking during the pressing of the upper and lower molds 110, 120, thereby improving the dimensional accuracy of the 3D glass 202 product.

[0180] In some embodiments, reference Figures 4 to 6The first guide structure is constructed to include a first guide surface 114 , and in the first direction D2 (ie, the left-right direction), the protrusion 111 is located between the two first guide surfaces 114 .

[0181] The second guide structure is configured to include second guide surfaces 124 . In the first direction D2 , the mold cavity 121 is located between two second guide surfaces 124 .

[0182] Illustratively, first guide surfaces 114 are respectively provided on the left and right sides of the upper mold 110 , and second guide surfaces 124 are respectively provided on the left and right sides of the lower mold 120 .

[0183] By adopting such a solution, the guidance of the upper mold 110 and the lower mold 120 during the pressing process is achieved by means of surface contact, which has a simple structure and facilitates the processing of the mold.

[0184] In some embodiments, the upper mold 110 has: a first positioning structure. Two first positioning structures are provided, and the two first positioning structures are spaced apart in the second direction D3 (i.e., the front-to-back direction);

[0185] The lower mold 120 has two second positioning structures, which are spaced apart in the second direction D3.

[0186] The first positioning structure cooperates with the second positioning structure to provide guidance when the upper mold 110 and the lower mold 120 are pressed together.

[0187] This solution prevents front-to-back shaking during the pressing process between the upper mold 110 and the lower mold 120, thereby improving the dimensional accuracy of the 3D glass 202 product. Furthermore, the first and second positioning structures, along with the first and second guide structures, enable precise positioning in both the left-right and front-to-back directions during the molding process.

[0188] In some embodiments, reference Figures 4 to 6 The first positioning structure is constructed to include a first positioning surface 115 , and in the second direction D3 (ie, the front-to-back direction), the protrusion 111 is located between the two first positioning surfaces 115 .

[0189] The second positioning structure is configured to include second positioning surfaces 125 . In the second direction D3 , the cavity 121 is located between two second positioning surfaces 125 .

[0190] Exemplarily, the front and rear sides of the upper mold 110 are respectively provided with first positioning surfaces 115 , and the front and rear sides of the lower mold 120 are respectively provided with second positioning surfaces 125 .

[0191] By adopting such a solution, the guidance of the upper mold 110 and the lower mold 120 during the pressing process is achieved by means of surface contact, which has a simple structure and facilitates the processing of the mold.

[0192] In some embodiments, the upper mold 110 has: a first mold opening structure. The first mold opening structure is used for being clamped by an external device to achieve mold opening.

[0193] The lower mold 120 has a second mold opening structure. The second mold opening structure is the first mold opening structure and is used for being clamped by an external device to realize mold opening.

[0194] For example, the external device may be an automated robot or other gripping device.

[0195] In some embodiments, reference Figures 4 to 6 The first mold opening structure is constructed to include a first mold opening groove 116 , and the first mold opening groove 116 is formed on the outer side wall of the upper mold 110 .

[0196] Exemplarily, the outer side walls of the upper mold 110 in the left and right directions are both provided with first mold opening grooves 116 , and a plurality of first mold opening grooves 116 are spaced apart in the front-to-back direction.

[0197] The second mold opening structure is configured to include a second mold opening groove 126 formed on an outer side wall of the lower mold 120 .

[0198] Exemplarily, the outer side walls of the lower mold 120 in the left and right directions are both provided with second mold opening grooves 126 , and a plurality of second mold opening grooves 126 are spaced apart in the front-to-back direction.

[0199] It is understandable that the first mold groove 116 can be set only in the upper mold 110, or the second mold groove 126 can be set only in the lower mold 120; or the first mold groove 116 can be set in the upper mold 110 and the second mold groove 126 can be set in the lower mold 120.

[0200] By adopting such a solution, the first mold opening groove 116 and the second mold opening groove 126 are provided, so that the structure is simple and the processing of the upper mold 110 and the lower mold 120 is facilitated.

[0201] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0202] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0203] The embodiments, implementation methods and related technical features of the present application can be combined and replaced with each other unless there is any conflict.

[0204] The above are merely preferred embodiments of the present application and do not constitute any form of limitation to the present application. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A glass hot bending mold, characterized in that: include: Upper mold, used to shape the upper surface of the glass; Lower mold, used to shape the lower surface of the glass; Wherein, the upper mold comprises: a first upper edge forming surface configured to bend upward in a first direction; a second upper edge forming surface configured to bend upward in a second direction; And / or the lower mold includes: a first lower edge forming surface configured to bend upward in a first direction; a second lower edge forming surface configured to bend upward in a second direction; The first direction intersects with the second direction.

2. The glass hot bending forming mold according to claim 1, characterized in that: The upper mold comprises two second upper edge forming surfaces, the first upper edge forming surface being arranged between the two second upper edge forming surfaces; and / or The lower mold includes two second lower edge forming surfaces, and the first lower edge forming surface is arranged between the two second lower edge forming surfaces.

3. The glass hot bending forming mold according to claim 2, characterized in that: The two second upper edge forming surfaces are symmetrically arranged relative to the first upper edge forming surface; and / or The two second lower edge forming surfaces are symmetrically arranged relative to the first lower edge forming surface.

4. The glass hot bending mold according to claim 1, characterized in that: The upper die also includes: an upper transition forming surface, forming a transition connection between the first upper edge forming surface and the second upper edge forming surface; And / or the lower die further comprises: The lower transition forming surface forms a transition connection between the first lower edge forming surface and the second lower edge forming surface.

5. The glass hot bending mold according to claim 4, characterized in that: The upper transition forming surface is a smooth curved surface and is tangent to the first upper edge forming surface and the second upper edge forming surface respectively; and / or The lower transition forming surface is a smooth curved surface and is tangent to the first lower edge forming surface and the second lower edge forming surface respectively.

6. The glass hot bending forming mold according to claim 1, characterized in that: The upper die also includes: an upper main forming surface, wherein the first upper edge forming surface and the second upper edge forming surface are respectively provided at edges of the upper main forming surface; And / or the lower die further comprises: The lower main forming surface, the first lower edge forming surface and the second lower edge forming surface are respectively arranged on the edges of the lower main forming surface.

7. The glass hot bending mold according to claim 6, characterized in that: The first upper edge forming surface and the second upper edge forming surface respectively transition smoothly with the upper main forming surface; and / or The first lower edge forming surface and the second lower edge forming surface are respectively smoothly transitioned to the lower main forming surface.

8. The glass hot bending mold according to any one of claims 1 to 7, characterized in that: The upper mold comprises: a first upper edge forming surface configured to bend upward in a first direction; a second upper edge forming surface configured to bend upward in a second direction; Wherein, the upper mold is constructed to have a convex block, and the first upper edge forming surface and the second upper edge forming surface at least constitute at least a portion of the outer wall of the convex block; The lower die comprises: a first lower edge forming surface configured to bend upward in a first direction; a second lower edge forming surface configured to bend upward in a second direction; The lower mold is constructed with a cavity, and the first lower edge molding surface and the second lower edge molding surface constitute at least part of the cavity wall of the cavity; the cavity wall and the outer wall act on opposite sides of the glass during hot bending.

9. The glass hot bending mold according to claim 8, characterized in that: The lower mold has or is connected to: a first discharge structure and a second discharge structure; The first discharge structure and the second discharge structure are spaced apart in the first direction so that the glass can be supported on the lower mold in a preset state during discharge.

10. The glass hot bending forming mold according to claim 9, characterized in that: The first discharging structure includes: The first supporting surface is used to support one side of the glass during unloading; The second discharging structure includes: The second supporting surface is used to support the other side of the glass during unloading; Wherein, the first supporting surface and the second supporting surface are respectively inclined.

11. The glass hot bending mold according to claim 10, characterized in that: The first discharge structure includes: a first guiding surface, used to guide one side edge of the glass to contact the first supporting surface; Wherein, the first guide surface is transitionally connected to the first support surface; The second discharging structure includes: a second guiding surface, used to guide the other side edge of the glass to contact with the second supporting surface; Wherein, the second guide surface is transitionally connected to the second supporting surface.

12. The glass hot bending mold according to claim 10, characterized in that: The first supporting surface and the first upper edge forming surface are smoothly transitioned, and the angle between the first supporting surface and the first upper edge forming surface is greater than 90°.

13. The glass hot bending mold according to claim 9, characterized in that: The glass hot bending forming mold also includes: The insert is formed with the second material discharge structure; The insert is detachably connected to the lower mold, and the cavity is at least composed of the insert and the lower mold.

14. The glass hot bending mold according to claim 13, characterized in that: The lower mold has a mounting groove, and at least a portion of the insert is embedded in the mounting groove.

15. The glass hot bending forming mold according to claim 14, characterized in that: The lower die also includes: a fixing hole for allowing a fastener to pass through so as to fix the insert to the lower mold; Wherein, the fixing hole is communicated with the installation groove.

16. The glass hot bending mold according to claim 8, characterized in that: The upper mold has a first limiting structure, and the lower mold has a second limiting structure; The first limiting structure cooperates with the second limiting structure to enable the upper mold and the lower mold to press the glass at a preset pressing amount.

17. The glass hot bending mold according to claim 16, characterized in that: The first limiting structure is configured to include a limiting groove, and the second limiting structure is configured to include a limiting protrusion; When the upper mold and the lower mold are pressing the glass, the top surface of the limiting protrusion abuts against the upper groove wall of the limiting groove.

18. The glass hot bending mold according to claim 16, characterized in that: The first limiting structure is configured to include a first end surface, and the second limiting structure is configured to include a second end surface; When the upper mold and the lower mold press the glass, the first end surface abuts against the second end surface.

19. The glass hot bending mold according to claim 8, characterized in that: The upper mold comprises: Two first guide structures are spaced apart in the first direction; The lower mold comprises: two second guide structures, spaced apart in the first direction; The first guide structure cooperates with the second guide structure to provide guidance when the upper die and the lower die are pressed together.

20. The glass hot bending mold according to claim 19, characterized in that: The first guide structure is configured to include first guide surfaces, and in the first direction, the protrusion is located between two first guide surfaces; The second guide structure is configured to include second guide surfaces, and in the first direction, the cavity is located between two second guide surfaces.

21. The glass hot bending mold according to claim 19, characterized in that: The upper mold comprises: Two first positioning structures are spaced apart in the second direction; The lower mold comprises: two second positioning structures, spaced apart in the second direction; The first positioning structure cooperates with the second positioning structure to provide guidance when the upper mold and the lower mold are pressed together.

22. The glass hot bending mold according to claim 21, characterized in that: The first positioning structure is constructed to include first positioning surfaces, and in the second direction, the protrusion is located between two first positioning surfaces; The second positioning structure is configured to include second positioning surfaces, and in the second direction, the cavity is located between two second positioning surfaces.

23. The glass hot bending mold according to any one of claims 1 to 7, characterized in that: The upper mold comprises: A first mold opening structure, used for being clamped by an external device to realize mold opening; And / or the lower mold has: The second mold opening structure is used for being clamped by external equipment to realize mold opening.

24. The glass hot bending forming mold according to claim 23, characterized in that: The first mold opening structure is configured to include a first mold opening groove formed on an outer side wall of the upper mold; The second mold opening structure is configured to include a second mold opening groove, and the second mold opening groove is formed on the outer side wall of the lower mold.

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