TW202000610A - Mold for hot embossing process and the manufacturing process of glass optical element - Google Patents

Abstract

The invention discloses a mold for hot embossing process and the manufacturing process of glass optical element using the same. The total area of the upper surface of the bushing in the hot press embossing mold is twice or more of the total area of the said upper surface occupied by the holes for accommodating the mold core. Accordingly, more molds core can be accommodated into a single mold to increase production thereof.

Description

Hot press forming mold and method for manufacturing glass optical element

The present invention relates to a mold, and in particular to a hot-press molding mold that can be used in a glass molding process (Glass molding).

The glass hot compression molding process has been widely used in the process of aspheric glass lenses. The hot press forming process can be roughly divided into three steps of heating, forming and cooling. That is, the glass material to be processed is first heated to soften the material; then the upper mold core and the lower mold core press the material to deform the material to be processed so that its shape matches the molding surfaces of the upper and lower mold cores. Finally, after the molded workpiece is cooled, its glass lens is completed.

The hot press forming machine can be divided into single station and multi-station. Single-station molding machine means that during the manufacturing process, the mold itself is fixed on the machine, and will not leave the machine, that is, the above three steps are completed on the same platform. On the contrary, the multi-station process means that heating, forming and cooling can be completed on more than two platforms. For example, the mold can be preheated on the heating platform of the hot compression molding machine together with the material to be processed, and then moved to the molding platform of the hot compression molding machine, and then moved to the cooling platform of the hot compression molding machine to cool and then open the mold. Remove the workpiece.

Taking the multi-station hot press forming machine as an example, in order to increase the output, the hot press forming mold will be provided with multiple sets of upper and lower mold cores in a single mold to maximize the output of the workpiece in a single process. That is, the more sets of mold cores placed in a single mold, the greater the number of products that can be completed per cycle. However, the width of the mold entrance of the multi-station hot press machine is fixed, which limits the maximum possible width of the mold.

In general, in order to take into account the processing accuracy and cost, the hot pressing molds are mostly cylindrical. In addition, the larger the diameter of the round mold, the larger the surface area where the mold core can be placed when the mold core size is fixed, and the greater the number of mold core groups that the mold can accommodate. However, under the limitation of the maximum width of the processing machine inlet, the effective area of the mold cannot be increased due to the maximum width of the processing machine inlet, which directly limits the number of mold cores that the mold can accommodate. Therefore, how to improve the above-mentioned problems is actually the focus of relevant people in the field.

The "prior art" paragraph is only used to help understand the content of the present invention. Therefore, the content disclosed in the "prior art" paragraph may include some conventional technologies that are not known to those of ordinary skill in the art. The content disclosed in the "Prior Art" paragraph does not mean that the content or the problem to be solved by one or more embodiments of the present invention has been known or recognized by those with ordinary knowledge in the technical field before the application of the present invention.

In order to solve the aforementioned problems, an embodiment of the present invention provides a mold design with high area usage, so that a single mold can accommodate more sets of upper and lower mold cores, thereby effectively increasing production.

In one aspect of the present invention, this embodiment relates to a hot press forming mold, which includes a base, a single-piece bushing provided on the base, and multiple sets of upper and lower mold cores, respectively Mo Ren group. There is a mold cavity defined between the upper and lower mold cores in each mold core group. The one-piece bushing has an upper surface facing the base in the other direction. The one-piece bushing is provided with a plurality of holes on the upper surface for accommodating the aforementioned die set, and the aforementioned plurality of holes are surrounded by the upper surface The total area of the area accounts for 50% or more of the area surrounded by the outer surface of the single-piece bushing on the upper surface. In application, each mold core group is set in the corresponding cavity, and the mold cavity of each mold core group is located in the cavity. With the aforementioned mold design, more mold core groups can be accommodated under the premise that the entrance width of the hot press is limited.

In another aspect of the present invention, this embodiment provides a hot press forming mold, which includes a base, a single-piece inner sleeve provided on the top surface of the base, and multiple sets of The mold kernel group composed of lower mold kernels, and a mold cavity is defined between the male and female mold kernels in each mold kernel group. The one-piece inner sleeve faces the base in the other direction and has an upper surface. The one-piece inner sleeve is provided with a plurality of perforations on the upper surface for accommodating the aforementioned die set, and the aforementioned plurality of perforations depend on their positions Can be divided into two perforation groups. In one of the two perforation groups, the distance between the center of any perforation and the center of the upper surface of the inner sleeve is the same as The distance of the centroid of the surface is substantially different. In application, each mold core group is set in the corresponding perforation, and the mold cavity of each mold core group is located in the mold cavity. With the aforementioned mold design, under the premise that the width of the inlet of the hot press is limited, through the configuration of perforations, more mold core groups can be accommodated.

Other objects and advantages of the present invention can be further understood from the technical features disclosed by the present invention. In order to make the above and other objects, features and advantages of the present invention more obvious and understandable, the embodiments are described in detail below in conjunction with the accompanying drawings, which are described in detail below.

The foregoing and other technical contents, features and effects of the present invention will be clearly presented in the following detailed description with reference to one of the preferred embodiments of the drawings. The directional terms mentioned in the following embodiments, for example: up, down, left, right, front or back, etc., the directional terms are used to illustrate rather than limit the present invention.

The design of the mold 1 of the present invention will be explained below. Please refer to FIG. 1A to FIG. 4B. FIG. 1A and FIG. 1B respectively illustrate the state of the mold in the first embodiment of the present invention when the mold is not closed and has been closed, which is also cut along the AA section line relative to FIG. The surface is designed to highlight the design features. The proportions of the components in Figures 1A and 1B have been adjusted and are not the same as those in Figure 2. FIG. 2 is a schematic diagram of an inner sleeve drawn at an actual scale in the first embodiment of the present invention. FIG. 3 depicts a schematic diagram of the cavity distribution of the inner sleeve in the first embodiment of the present invention. 4A and 4B respectively illustrate schematic diagrams of the area ratio of the inner sleeve cavity to the upper surface of the inner sleeve in the first embodiment of the present invention.

Please refer to FIGS. 1A and 1B. As can be seen from the figure, in the first embodiment, the mold 1 of the present invention is a hot-press mold 1 applied to a multi-station, glass hot-pressing process (or glass molding process). When the mold 1 is applied, it can be heated in the first station of the multi-station hot press, and then transferred to the second station and placed between the upper platen 2A and the lower platen 2B, so that the work pieces in it are pressed and formed, and then Then, the entire mold 10 and the work pieces therein are moved from the second station to the third station for cooling. In this embodiment, the mold 1 includes an inner sleeve 10, a plurality of mold cores 20, 30, 40, 50, a base 60, and an outer sleeve 70.

Please refer to FIG. 1A to FIG. 4B, as can be seen from the figure, in this example, the inner sleeve 10 is used to accommodate the mold core 20, 30, 40, 50, which is a kind of bushing or sleeve. A hole 12 for accommodating the mold cores 20, 30, 40, 50 and a positioning hole 14 for positioning.

In this example, the positioning hole 14 is located in the central portion of the inner sleeve 10, penetrates the inner sleeve 10 to face the upper surface 10A (or first surface) of the upper platen 2A and the following table 10B (facing the lower platen 2B) Or called the second surface). The extending direction of the positioning hole 14 is substantially perpendicular to the upper surface 10A, or, in use, a vertical hole parallel to the direction of gravity. The positioning hole 14 is a circular hole provided with a single cut edge, and its hole outline is a circle with a single cut edge.

In this example, the holes 12 for accommodating the mold cores 20, 30, 40, and 50 are respectively formed in the inner sleeve 10, and each hole 12 can penetrate the upper surface 10A of the inner sleeve 10 and the following table 10B, respectively Each of the holes 12 is not vertically limited, and each hole 12 may be a blind hole. In this example, the outline of each hole 12 is a perfect circle, and a plurality of exhaust holes 13 with a diameter of about 0.3 mm to 5 mm wide can be provided at the middle depth of the inner hole wall of each hole 12. In the example, the exhaust hole 13 is a round hole, but it can also be a channel of other shapes, and the invention is not limited thereto. In this example, the exhaust holes 13 of each hole 12 can communicate with the positioning holes 14 respectively. In addition, each cavity 12 may also be provided with a vent 13 communicating with the outer surface of the inner sleeve 10. With this design, when the upper mold core (for example, mold core 40) moves down the mold core (for example, mold core 20), the air in the mold cavity 12A can be discharged more smoothly. In this example, at least several of the aforementioned exhaust holes 13 have substantially the same height as the inner sleeve 10, but they are not necessarily limited to having the same height. In addition, the vent hole 13 in the cavity 12 may be slightly higher or lower than the height of the molding surface 20A of each mold core. Taking FIGS. 1A and 1B as an example, it can be seen that the diameters of the top ends of the mold cores 20 and 30 may be slightly smaller than the cavity 12 In order to keep the cavity and the vent hole 13 in communication. The bottom ends of Mo Ren 40 and 50 are the same. That is, each vent hole 13 and the mold core, for example, the molding surface 20A of the mold core 20 may not be at the same height.

In one aspect of this embodiment, the profile of the inner sleeve 10 on the upper surface 10A is preferably a rectangular-shaped column including at least two symmetrically parallel cut edges. In this example, there are two pairs of four parallel straight cut edges. More specifically, considering the processing accuracy and cost, the inner sleeve 10 is mostly made of a single piece of cylindrical material, and is in the form of a single piece (One piece formed), that is, the inner sleeve is a single-piece inner sleeve , From another aspect, it is a kind of single-piece bushing. The inner sleeve 10 is preferably provided with the aforementioned at least two symmetrical straight and parallel cutting edges. Please refer to the description of FIG. 5. FIG. 5 illustrates the use of a circular-like inner sleeve and two pairs of mutually symmetric parallel cutting edges. A comparison diagram of the available area of the inner sleeve mold. As can be seen from the figure, when the width of the inlet of the mold 1 of the hot press is fixed, the usable area of the upper surface 10A of the rectangular-shaped cylinder with two pairs of symmetrical parallel cuts is larger than the usable area of the cylindrical inner sleeve 10, With the corresponding shape of the outer sleeve 70, more sets of mold cores can be arranged on the upper surface 10A to allow more workpieces P to be processed in a single process, improving process efficiency.

In order to improve the utilization rate of the area of the upper surface 10A of the inner sleeve 10, in another aspect of the embodiment of the present invention, a layout design for arranging the cavities 12 for accommodating the mold core is proposed. According to the distance between the hole 12 and the center point of the inner sleeve 10, each hole 12 can be divided into multiple groups, and the distance between the center point of each hole 12 and the center point of the inner sleeve 10 in each group is respectively identical. Referring to FIG. 3, in this example, it is assumed that the outer contour of the upper surface 10A of the inner sleeve 10 has a centroid (center point), and each cavity 12 for receiving the mold core also has a contour on the upper surface 10A. The centroid, and the minimum straight-line distance between the centroid of each cavity 12 and the centroid of the outer contour of the inner sleeve 10 on the upper surface 10A is D. The D of each hole 12 in the first group is the same as D1, and the D of each hole 12 in the second group is the same as D2, that is, if the center of the inner sleeve 10 is the center point, draw a radius D1 Circle, the centroids of the holes 12 of the first group will overlap the circumference of the circle, and the holes 12 of the second group are the same. In this example, the inner sleeve 10 is provided with two groups with different D values. However, when necessary, the inner sleeve 10 further includes three or more groups of holes 12 such as multiple rows, A matrix of holes 12 arranged in multiple columns is an example.

In order to properly utilize the area of the upper surface 10A of the inner sleeve 10, in another aspect of the embodiment of the present invention, a layout design for arranging the holes 12 for accommodating the mold core group is proposed. Please refer to FIG. 4A. FIG. 4A illustrates the upper surface 10A of the inner sleeve 10 of this embodiment. The range indicated by the diagonal lines in the figure is the surface area surrounded by the contour of the upper surface 10A of the inner sleeve 10. This is called the first area A1. FIG. 4B shows the upper surface 10A of the inner sleeve 10 of the present embodiment. The range indicated by the cross in the figure is the surface area surrounded by the cavity 12 of the upper surface 10A of the inner sleeve 10. The sum of the surface areas surrounded by the holes 12 for accommodating the mold 1, that is, the sum of the areas A21 to A26, is temporarily called the second area A2. In this embodiment, when the ratio of A2 divided by A1 is greater than 0.5, or greater than 50%, the effect is better, and when the ratio is greater than 0.55, the effect is better. In this embodiment, the ratio of A2/A1 is about 0.54.

However, the inner sleeve of the present invention is not limited to the six holes of the first embodiment, and another feasible solution will be proposed below for reference. Please refer to FIGS. 6A and 6B again. FIG. 6A illustrates the upper surface 10A of the inner sleeve 10 of the second embodiment. The range indicated by oblique lines in the figure is surrounded by the contour of the upper surface 10A of the inner sleeve 10 The surface area of is temporarily called the first area A1. FIG. 6B shows the upper surface 10A of the inner sleeve 10 of the second embodiment. The range indicated by the cross in the figure is the surface area surrounded by the cavity 12 of the upper surface 10A of the inner sleeve 10. The sum of the surface areas surrounded by the holes 12 for accommodating the mold 1, that is, the sum of the areas A21 to A24, is temporarily called the second area A2. In this embodiment, the ratio of A2 divided by A1 is about 64%.

Please refer to FIG. 1A and FIG. 1B again. In this embodiment, a plurality of mold cores 20, 30, 40, and 50 are used. Taking mold core 20 as an example, each mold core is a molding surface 20A with a specific shape at one end. A metal cylinder that can be used to define the shape of the workpiece surface. In this example, each mold core 20, 30, 40, 50 is a mold core with high heat resistance that can be used in the glass hot pressing process. Unlike the general injection molding process, the mold core used in the glass hot-pressing process in this example is made of a metal material, such as tungsten steel, whose heat resistance temperature is higher than the moldable temperature of the glass (e.g., six hundred degrees Celsius or more). The moldable temperature of the aforementioned materials is higher than the softening temperature.

In addition, according to the mobility of the mold core, the mold core can be divided into movable side mold cores 40 and 50 and fixed side mold cores 20 and 30. As shown in FIGS. 2A and 2B in this example, the mold cores 20 and 30 are fixed and not actuated between processes, so they are fixed side mold cores or female mold cores. On the contrary, the mold cores 40 and 50 have action during the manufacturing process, so they are movable side mold cores or male mold cores. In addition, according to the relative position, the mold kernel can also be divided into lower mold kernel and upper mold kernel. As shown in FIGS. 2A and 2B in this example, the mold cores 20 and 30 are in a lower position between processes, so they are lower mold cores, whereas the mold cores 40 and 50 are upper mold cores. The upper mold kernel (for example, mold kernel 40) and the lower mold kernel (for example, mold kernel 20) are arranged in pairs to be considered as a mold kernel group. The upper mold core 50 and the lower mold core 30 are the same. In this example, the upper and lower mold cores can define the exit and entrance surfaces of the workpiece, respectively. Similarly, when applying each mold core group, a mold cavity is defined between the upper mold core and the lower mold core for the workpiece accommodation and forming.

The base 60 in this embodiment is substantially a metal flat plate whose outer contour corresponds approximately to the outer contour of the outer sleeve 70. There is a top surface above the base 60, and a convex portion may be provided in the center of the top surface Out 61 is used as a positioning tenon for positioning the inner sleeve 10, and the shape of the aforementioned positioning tenon may correspond to the positioning hole 14 in the central portion of the inner sleeve 10. In another embodiment, the base 60 is not limited to having the aforementioned protrusion 61 in the central portion. Any positioning element that can be used to position with the inner sleeve 10 can be replaced, for example, one or more The protrusions, ribs, concave holes, grooves, etc. provided on the edges corresponding to the positioning holes 14 of the inner sleeve 10 or other alignment structures are examples.

In this embodiment, the outer sleeve 70 is a cylindrical metal hollow cylinder, which can be used to sleeve on the outer edge of the inner sleeve 10 and used as a stop (STOP), that is, it can define the upper pressure plate 2A, The minimum distance of the lower pressure plate 2B in turn controls the maximum stroke of the movable side mold core or upper mold core 40, 50. In this example, the inner contour of the outer sleeve 70 corresponds to the trimmed portion of the outer contour of the inner sleeve 10. The outer contour of the outer sleeve 70 is generally rectangular or rectangular, and also corresponds to the trimmed portion of the outer contour of the inner sleeve 10. In other words, the outer sleeve 70, such as the inner sleeve 10, has more than two parallel straight edges. In this example, the outer contours of the upper and lower surfaces of the outer sleeve 70 have the same two pairs of four straight-line cutting edges that are perpendicular to each other.

In this example, when assembling, the inner sleeve 10 can be installed on the base 60 first, and the single-cut edge protrusion 61 of the base 60 can be embedded in the positioning hole 14 of the inner sleeve 10.

Next, the outer sleeve 70 is sleeved on the outer side of the inner sleeve 10, and the trimmed portions of the inner and outer contours of the outer sleeve 70 simultaneously correspond to the outer contours of the trimmed portions of the inner sleeve 10, that is, the same Includes at least two cut edges. However, the corner portion of the inner sleeve 10 can be selectively left blank. After the device is completed, it can be seen that the inner contour of the outer sleeve 70 is slightly larger than the outer contour of the inner sleeve 10. In this example, the outer surface of the inner sleeve 10 and the inner surface of the outer sleeve 70 can be predicted For example, a gap of 1 to 10 mm is left for the exhaust holes 13 to exhaust.

Next, install the mold cores 20, 30 in each cavity 12 of the inner sleeve 10 sequentially or simultaneously, and position them at the bottom of the cavity 12, while ensuring that the molding surfaces of the mold cores 20, 30 are exposed upwards孔12中。 12 holes. After the installation of the mold cores 20 and 30 is completed, the exhaust holes 13 of the cavity 12 in which they are located should still communicate with the cavity 12 and should not be blocked by the mold cores 20 and 30.

Next, a plurality of workpieces P are placed on the forming surfaces of the mold cores 20, 30 in the cavity 12 of the inner sleeve 10 sequentially or simultaneously. The workpiece P may be a fluid of various materials, spherical, sheet-shaped, or a pre-formed spherical lens. In this example, the workpiece P is a block P of glass material, more specifically, a spherical lens. Then, install the mold cores 40, 50 in each cavity 12 where the mold cores 20, 30 are located in sequence or simultaneously, with the molding surfaces of the mold cores 40, 50 facing the workpiece P, and the installation of the mold cores 40, 50 is completed After that, each exhaust hole 13 of the cavity 12 in which it is located should still communicate with the cavity 12 and should not be blocked by the mold cores 40 and 50. At this time, each cavity 12 includes two mold cores corresponding to each other, for example, mold cores 20, 40, and the entirety of each pair of upper and lower mold cores 20, 40 may be referred to as a mold core group. Between the two mold cores in each mold core group, the space for component molding can be called a mold cavity, molding space, or cavity. At the same time, the roots of the movable side mold cores 40 and 50 will be partially exposed outside the inner sleeve 10 and the outer sleeve 70, so that the assembly is completed. However, according to the design of the mold, the assembly sequence may be slightly different. For example, the lower mold core is locked from the lower surface of the inner sleeve, and then the inner sleeve is placed on the base, then the material block is placed, and then Imprinting may be performed after placing the upper mold kernel, and the present invention does not limit the sequence of the steps.

Subsequently, the whole of the mold 1, that is, the base 60 together with the inner sleeve 10, the outer sleeve 70, such as the mold core 20, 30, 40, 50, etc., and the workpiece P therein is passed through a multi-station hot press machine Enter the hot press machine. In this example, the inlet width of the hot press table is within 105 percent of the minimum width of the outer sleeve 70. Next, the entire mold 1 is heated to the moldable temperature of the glass together with the material to be processed. The moldable temperature varies according to the material to be processed. In this example, the moldable temperature is about 500 degrees Celsius. After the heating is completed, the entire mold 1 will be moved to the next station area for the pressurization process. An example is shown in FIGS. 1A and 1B. In this step, the base 60 of the mold 1 will be set on the lower platen 2B of the hot press, and the upper platen 2A will move to the lower platen 2B, and pressurize the mold cores 40, 50 together, and the mold cores 40, 50 The softened glass material P is simultaneously pressed and deformed so that the glass material simultaneously matches the shape of the molding surface corresponding to the mold core 20, 30, 40, 50. When the mold cores 40 and 50 are deformed when they move, the air originally located in the mold cavity is discharged through the exhaust hole 13.

When the upper pressure plate 2A contacts the upper edge of the outer sleeve 70, the upper pressure plate 2A stops moving, and the positions of the mold cores 40 and 50 are fixed. At this time, the upper platen 2A will maintain its original position for a certain period of time and then move in the opposite direction. Next, the entire mold 1 will be moved away from the lower platen 2B and moved to the next workstation. Subsequently, the mold 1 will be cooled, and then the upper mold core (for example, mold cores 40, 50) will be removed from each cavity 12; and when the upper mold core is removed, air can enter the mold cavity from the exhaust hole 13 to break the vacuum, Reduce the difficulty of removing the upper mold kernel. Then, the finished glass workpiece will be taken out of the cavity, and the process will be completed.

In summary, under the structural design of the multi-station hot pressing mold of the embodiment of the present invention, the surface area of the inner sleeve can be properly used to produce more workpieces in a single process, thereby improving Process efficiency.

The above specific embodiments are for illustrative purposes only, and do not limit the present invention. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with this skill can make some modifications and retouching without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection shall be deemed as defined by the scope of the attached patent application. In addition, any embodiment or scope of patent application of the present invention need not meet all the objectives, advantages or features disclosed by the invention. The abstract part and title are only used to assist the search of patent documents, not to limit the scope of the invention.

1‧‧‧Hot pressing mold 2A‧‧‧Upper pressure plate 2B‧‧‧‧Lower pressure plate 10‧‧‧Inner sleeve 10A‧‧‧Upper surface 12‧‧‧Cavities 12A‧‧‧Mold cavity 13‧‧‧Exhaust Hole 14‧‧‧Positioning holes 20, 30, 40, 50 ‧‧‧ Mold 20A‧‧‧Molding surface 70‧‧‧Outer sleeve 60‧‧‧Base 61‧‧‧ Projected P‧‧‧Workpiece

FIG. 1A and FIG. 1B respectively disclose schematic states of the mold in the first embodiment of the present invention when the mold is not closed and when the mold is closed. FIG. 2 is a schematic diagram of an inner sleeve drawn at an actual scale in the first embodiment of the present invention. FIG. 3 depicts a schematic diagram of the cavity distribution of the inner sleeve in the first embodiment of the present invention. 4A and 4B respectively illustrate schematic diagrams of the area ratio of the inner sleeve cavity to the upper surface of the inner sleeve in the first embodiment of the present invention. FIG. 5 is a schematic diagram illustrating the improvement effect of the mold in the first embodiment of the present invention. 6A and 6B respectively illustrate schematic diagrams of the ratio of the area of the inner sleeve cavity to the upper surface of the inner sleeve in the second embodiment of the present invention.

no

10‧‧‧Inner sleeve

10A‧‧‧Top surface

12‧‧‧hole

13‧‧‧ vent

14‧‧‧Locating hole

70‧‧‧Outer sleeve

Claims (10)

A hot press forming mold, including: a base; a single-piece bushing, which can be placed on the base, the single-piece bushing includes a plurality of holes, the single-piece bushing faces the other of the base There is a first surface in one direction, the area surrounded by the contour of the first surface is A1, the total area occupied by the plurality of holes on the first surface is A2, and A2/A1 is greater than or equal to 50%; a first die Group, a first mold cavity is defined; a second mold core group, a second mold cavity is defined; wherein, the first mold core group and the second mold core group can be respectively set in the plurality of holes during placement And the first cavity and the second cavity are located in the corresponding cavity. The hot press forming mold as described in item 1 of the patent application scope, wherein: the one-piece bushing is a one-piece inner sleeve, the first surface is an upper surface, and the plurality of holes includes a first perforation And a second perforation; the first mold core group includes a first upper mold core and a first lower mold core, a mold cavity is defined between the first upper mold core and the first lower mold core; and the second The mold core group includes a second upper mold core and a second lower mold core, and a mold cavity is defined between the second upper mold core and the second lower mold core. A hot press forming mold, including: a base; a first mold core group, including multiple upper and lower mold cores; a second mold core group, including multiple upper and lower mold cores; a single The one-piece inner sleeve is provided with an upper surface and can be placed on the base. The single-piece inner sleeve includes: a first perforation group including a plurality of first perforations; a second perforation group including a plurality of perforations The second perforation; the center of the plurality of first perforations on the upper surface is substantially the same as the distance between the center point of the single-piece inner sleeve on the upper surface, and is D1; the plurality of second perforations are on the upper surface The distance between the center of the shape and the center point of the single-piece inner sleeve on the upper surface is substantially the same, and is D2, D2 and D1 are substantially different; wherein, the first upper and lower mold kernels of the complex array can be separately It is arranged in the plurality of first perforations, and mold cavities are respectively defined in the plurality of first perforations; the second upper and lower mold cores of the complex array can be respectively arranged in the plurality of second perforations when they are arranged, And mold cavities are respectively defined in the plurality of second perforations. Any one of the hot press forming molds described in item 2 or item 3 of the patent application scope, wherein the outer contour of the upper surface of the one-piece inner sleeve includes at least two parallel cut edges. The hot press forming mold as described in item 4 of the patent application scope further includes a single-piece outer sleeve, which can be disposed outside the single-piece inner sleeve, and the outer contour of the single-piece outer sleeve includes At least two parallel cut edges. The hot press forming mold as described in item 5 of the patent application range, wherein the hot press forming mold is suitable for a multi-station hot press forming machine. The hot press forming mold as described in item 6 of the patent application scope, wherein the plurality of perforated hole walls of the single-piece inner sleeve are respectively provided with at least one exhaust hole. The hot press forming mold as described in item 7 of the patent application range, wherein the single-piece inner sleeve further includes a positioning hole located at the center of the outer contour of the first surface and being a vertical Perforation, the plurality of perforations communicate with the positioning hole through the exhaust hole respectively. The hot press forming mold as described in item 8 of the patent application scope, wherein, after the assembly is completed, a gap is provided between the inner surface of the single-piece inner sleeve and the outer surface of the single-piece outer sleeve, the The plurality of perforations further includes a vent hole communicating with the outer surface of the single-piece inner sleeve. A method for manufacturing a glass optical element includes the following steps: a bush is mounted on a base, a plurality of holes are provided on a first surface of the bush, the plurality of holes includes a first hole and a first hole Two holes, the area surrounded by the contour of the first surface is A1, the total area occupied by the plurality of holes on the first surface is A2, and A2/A1 is greater than 50%; an outer sleeve is installed outside the bushing Installing a first mold core in the first cavity of a bushing; installing a second mold core in the second cavity of a bushing; setting a first block of glass material in the molding of the first mold core A second glass material block on the forming surface of the second mold core; install a third mold core in the first cavity of the bushing; install a fourth mold core in the second of the bushing In the cavity; the base, together with the outer sleeve, the bushing, the first mold core, the second mold core, the third mold core, the fourth mold core, the first glass material block and the The second block of glass material is input into the inlet of a hot press as a whole; a pressure is applied to the third mold core so that the first glass material block is formed to match the molding surfaces of the first mold core and the third mold core Shape; and applying a pressure to the fourth mold core, so that the second glass material block forms a shape matching the molding surface of the second mold core and the fourth mold core.

Images