Glass lens forming mold

Abstract

The present invention belongs to the technical field of automobile lighting, and discloses a glass lens forming mold, comprising a first mold group, a second mold group, and an extrusion rod. The upper surface of the first mold group is provided with a plurality of first mold cavities corresponding to the second side surface of the glass lens, and a material storage tank connected with the first mold cavity through a flow channel; the lower surface of the second mold group is provided with a plurality of second mold cavities corresponding to the first side surface of the glass lens, and the positions and numbers of the first mold cavities and the second mold cavities correspond; the second mold group is also provided with a first through hole corresponding to the position of the material storage tank, and the extrusion rod can be arranged in the first through hole to move back and forth perpendicular to the second mold group. This embodiment realizes the purpose of one mold and multiple production of glass lenses, that is, one die casting can produce multiple glass lenses, thereby improving the production efficiency of glass lenses.

Description

Technical Field

[0001] The invention relates to a molding die used for manufacturing lens, reflector lamp optical elements, and in particular to a glass lens molding die. Background Art

[0002] Currently, most of the optical elements used in automobile lights are made of glass. Since glass has a high melting point, high viscosity and low fluidity, optical elements are usually made by pressurizing heated and softened glass. In the case of glass stamping, a mold group is used that includes a pair of molding molds and a cylindrical mold that guides the pair of molding molds. That is, in the stamping process, the glass is heated to a temperature above the glass transition point to be softened, and then deformed by pressurizing the molding mold, and then cooled to below the glass transition point to harden, and then demolded to obtain an optical element. However, this molding mold can only process and form one optical element at a time, and the work efficiency is low. In addition, the optical element prepared by this method has a simple structure and cannot meet the current demand for diversified optical elements. Summary of the invention

[0003] In order to solve the problems of the prior art, a glass lens molding mold is provided to meet the diverse optical element preparation requirements in view of the deficiencies of the prior art. The glass lens molding mold can improve the production efficiency of the optical element.

[0004] To achieve the above object, the technical solution of the present invention is as follows:

[0005] A glass lens forming mold comprises a first module group, a second module group and an extrusion rod, wherein the upper surface of the first module group is provided with a plurality of first mold cavities corresponding to the second side surface of the glass lens, and a material storage tank connected to the first mold cavity through a flow channel; the lower surface of the second module group is provided with a plurality of second mold cavities corresponding to the first side surface of the glass lens, and the positions and numbers of the first mold cavities and the second mold cavities correspond; the second module group is also provided with a first through hole corresponding to the position of the material storage tank, and the extrusion rod can be arranged in the first through hole so as to move back and forth perpendicularly to the second module group.

[0006] Furthermore, a first positioning opening is arranged on the edge of the upper surface of the first module, and a second positioning opening corresponding to the position of the first positioning opening is arranged on the edge of the lower surface of the second module.

[0007] Furthermore, the shape structure of the lower end of the extrusion rod corresponds to the shape structure of the storage trough.

[0008] Furthermore, the length dimension of the extrusion rod is greater than the thickness dimension of the second module.

[0009] Furthermore, it also includes a chassis and a third module movably connected to the chassis, and the chassis is connected to the first module via a limiting column which is arranged on the chassis and forms an integral structure with the chassis.

[0010] Furthermore, a limiting hole is provided at the bottom of the first module, and the limiting column is connected to the limiting hole.

[0011] Furthermore, the first module is provided with a plurality of second through holes corresponding to the positions of the first mold cavities, and the third module passes through the second through holes and is provided in the first module.

[0012] Furthermore, the top structure of the third mold assembly and the cavity formed by the first mold cavity correspond to the structure of the first side of the glass lens.

[0013] Furthermore, a feed groove is provided on the lower surface of the second module at a position corresponding to the flow channel.

[0014] An embodiment of the present invention provides a glass lens forming mold, comprising a first module group, a second module group, and an extrusion rod, wherein the upper surface of the first module group is provided with a plurality of first mold cavities corresponding to the second side surface of the glass lens, and a material storage tank connected to the first mold cavity through a flow channel; the lower surface of the second module group is provided with a plurality of second mold cavities corresponding to the first side surface of the glass lens, and the positions and numbers of the first mold cavities and the second mold cavities correspond to each other; the second module group is also provided with a first through hole corresponding to the position of the material storage tank, and the extrusion rod can be moved back and forth perpendicularly to the second module group and is arranged in the first through hole. This embodiment achieves the purpose of one mold and multiple production of glass lenses, that is, one die casting can produce multiple glass lenses, thereby improving the production efficiency of glass lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a glass lens forming mold provided by an embodiment of the present invention;

[0017] Figure 2 is another three-dimensional structural schematic diagram of a glass lens forming mold provided by an embodiment of the present invention;

[0018] Figure 3 is a structural schematic diagram of a first module provided by an embodiment of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the second module provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] refer to Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the present embodiment provides a glass lens molding mold, which is used to produce a glass lens 4, and the glass lens 4 includes a second side surface 42 of a convex spherical structure and a first side surface 41 corresponding to the second side surface 42. The glass lens molding mold provided in the present embodiment includes a first module 21, a second module 51, and an extrusion rod 61. The upper surface of the first module 21 is provided with four first mold cavities 23 corresponding to the structure of the second side surface 42 of the glass lens, and a storage tank 25 connected to the first mold cavity 23 through a flow channel 24; the lower surface of the second module 21 is provided with four second mold cavities 53 corresponding to the structure of the first side surface 41 of the glass lens, the first mold cavity 23 corresponds to the position of the second mold cavity 53, and the size structure of the mold cavity formed after the first mold cavity 23 and the second mold cavity 53 are molded together corresponds to the size structure of the glass lens; the second module 51 is also provided with a first through hole 54 corresponding to the position of the storage tank 25, and the extrusion rod 61 can move back and forth perpendicular to the second module 51. The first through hole 54 is movably arranged in the first through hole 54; there are two ways to produce the glass lens. The first way is to first introduce the molten glass into the storage tank 25, then close the first mold 11 and the second mold 21, and then squeeze the extruder rod 61 downward under the action of pressure to fill the molten glass in the storage tank 25 into the mold cavity formed by the first mold cavity 23 and the second mold cavity 53 through the runner 24, and then cool it to obtain a glass lens. The second way is to close the first mold 21 and the second mold 51 first, and then fill the molten glass into the mold cavity formed by the first mold cavity 23 and the second mold cavity 53. The molten glass is input into the material storage tank 25 through the first through hole 54, and then the extrusion rod 61 is placed into the first through hole 54 and sufficient pressure is applied on the extrusion rod 61 to ensure that the molten glass in the material storage tank 25 is quickly filled into the mold cavity composed of the first mold cavity 23 and the second mold cavity 53 through the flow channel 24, and then cooled to obtain a glass lens. In short, the technical solution provided in this embodiment achieves the purpose of one mold for multiple production of glass lenses, that is, one die casting can produce multiple glass lenses, thereby improving the production efficiency of glass lenses.

[0022] It is worth noting that technical personnel in this field can set different numbers of cavities on the molding mold of the glass lens according to the design requirements of the structural dimensions of the glass lens and other relevant parameters, that is, set different numbers of first cavities, second cavities and runners. Of course, the number of first cavities and the number and positions of second cavities are corresponding. The setting of the runner size requires more parameter setting of the molten glass. The viscosity of the molten glass is relatively large and the fluidity is poor, so the size of the runner needs to be relatively larger. At the same time, the pressure applied to the extruder rod should also be adjusted to be larger accordingly, so that the molten glass can quickly fill the glass molding cavity formed by the first cavity and the second cavity with sufficient material, sufficient quantity and quality, and ensure that the filling is completed before the molten glass is cooled to the solidification point, so as to ensure that the produced glass lens meets the composite design requirements. However, the specific width dimension of the runner is smaller than the radial dimension of the glass lens, and the height dimension of the runner is smaller than the depth dimension of the first cavity.

[0023] Specifically, in this embodiment, a first positioning port 22 is provided on the edge of the upper surface of the first module 21, and a second positioning port 52 corresponding to the position of the first positioning port 22 is provided on the edge of the lower surface of the second module 51. The first positioning port 22 and the second positioning port 52 can not only control the relative mold position of the first module 21 and the second module 51, that is, can effectively ensure the relative position of the first mold cavity 23 and the second mold cavity 53, and ensure that the structural size of the produced glass lens meets the design requirements. At the same time, the design of the first positioning port 22 and the second positioning port 52 facilitates the mold opening of the first module 21 and the second module 51, that is, it is convenient for the grasping and positioning of the first module and the second module when the mold is opened.

[0024] Furthermore, the shape structure of the lower end of the extrusion rod 61 in the present embodiment corresponds to the shape structure of the material storage tank. Such a design also makes it easier for the extrusion rod 61 to squeeze the molten glass in the material storage tank 25 into the mold cavity formed by the first mold cavity 23 and the second mold cavity 53, thereby achieving effective utilization of materials and saving resources. Specifically, the length dimension of the extrusion rod in the present embodiment is greater than the thickness dimension of the second mold group.

[0025] Furthermore, the glass lens molding mold provided in this embodiment also includes a chassis 11 and a third module 31 movably connected to the chassis 11. Specifically, the third module 31 can be connected to the chassis 11 by bolts, and the third module 31 passes through four second through holes 26 on the first module 21 corresponding to the position of the first mold cavity 23 and is arranged in the first module 21.

[0026] Specifically, in this embodiment, a limiting hole 27 is provided at the bottom of the first module 21, and the chassis 11 is connected to the limiting hole 27 of the first module 21 through a positioning column 12 which is provided on the chassis 11 and is an integral structure with the chassis 11, thereby fully ensuring the relative stability of the chassis, the first module and the third module.

[0027] Specifically, in this embodiment, the top structure of the third mold assembly 31 corresponds to the structure of the cavity formed by the first mold cavity 23 and the second side surface 42 of the glass lens.

[0028] Specifically, in this embodiment, a feed groove 55 is provided on the lower surface of the second die set 51 at a position corresponding to the flow channel.

[0029] In summary, the glass lens molding mold provided in this embodiment can be combined with the first mold cavity on the first mold group, the second mold cavity on the second mold group and the third mold group to produce irregularly shaped glass lenses, thereby achieving diversification of design and production.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A glass lens molding mold, characterized in that: The present invention comprises a first module, a second module and an extrusion rod, wherein the upper surface of the first module is provided with a plurality of first cavities corresponding to the second side surface of the glass lens, and a material storage tank connected with the first cavity through a flow channel; the lower surface of the second module is provided with a plurality of second cavities corresponding to the first side surface of the glass lens, and the positions and numbers of the first cavity and the second cavity correspond; the second module is also provided with a first through hole corresponding to the position of the material storage tank, and the extrusion rod is arranged in the first through hole to move back and forth perpendicularly to the second module; the present invention also comprises a chassis and a third module movably connected to the chassis, and the chassis is connected to the first module through a limiting column arranged on the chassis and forming an integral structure with the chassis; the first module is provided with a plurality of second through holes corresponding to the positions of the first cavity, and the third module passes through the second through hole and is arranged in the first module; the top structure of the third module and the cavity formed by the first cavity correspond to the structure of the first side of the glass lens.

2. The glass lens molding mold according to claim 1, characterized in that: A first positioning opening is arranged on the edge of the upper surface of the first module, and a second positioning opening corresponding to the position of the first positioning opening is arranged on the edge of the lower surface of the second module.

3. The glass lens molding mold according to claim 1, characterized in that: The shape and structure of the lower end of the extrusion rod corresponds to the shape and structure of the material storage trough.

4. The glass lens molding mold according to claim 1, characterized in that: The length dimension of the extrusion rod is greater than the thickness dimension of the second die set.

5. The glass lens molding mold according to claim 1, characterized in that: A limiting hole is provided at the bottom of the first module, and the limiting column is connected to the limiting hole.

6. The glass lens molding mold according to claim 1, characterized in that: A feed groove is provided on the lower surface of the second die set at a position corresponding to the flow channel.

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