TW202015876A - Mold and flow disturbing stack - Google Patents

Abstract

A flow disturbing stack applied to be located in a flow channel includes a plurality of flow disturbing plates. The flow disturbing plates are stacked to each other. At least two of the flow disturbing plates each includes at least one first flow switching rod. Define a base surface. A normal line of the base surface is parallel to a stacking direction of the flow disturbing stack. The projections of the two first flow switching rods are not totally overlapped on the base surface so as to make the flow disturbing plates forming a flow disturbing channel together. The flow disturbing stack can also be applied to be located in a flow channel of a mold.

Description

Mold and spoiler stacking structure

The invention relates to a mold and a spoiler structure, in particular to a mold and a spoiler stack structure provided with a spoiler stack structure.

At present, plastic injection optical lenses or optical lenses use the upper mold core and the lower mold core to form mold cavities in the mold. Next, molten plastic is injected into the cavity at high pressure and high temperature to form the desired lens shape in the cavity. When the optical lens or optical lens is larger in volume or thicker, it means that more plastic is injected and more heat is accumulated. Finally, after the plastic is cooled and solidified for a long time, the optical lens can be ejected from the upper mold core or the lower mold core to obtain the desired optical lens or optical lens.

At present, the cooling method of the optical lens is to set a heat dissipation water channel in the upper mold core or the lower mold core to dissipate the optical lens in the mold cavity by the heat dissipation fluid in the heat dissipation water channel. However, the current heat dissipation water channel is generally a straight-through design, while the existing straight-through heat dissipation water channel is not easy to approach the mold cavity for cooling due to the limitations of traditional processing methods. As a result, the temperature difference between the high-temperature optical product and the mold may be too large, which may cause defects such as uneven shrinkage, warpage and residual stress. In addition, the heat dissipation fluid is less disturbed in the straight-through heat dissipation water channel, so that the heat dissipation fluid in the straight-through heat dissipation water channel is often difficult to exert the heat dissipation effect on the optical lens due to the short stay in the mold core. In this way, the cooling time of the optical lens will be lengthened, and the production efficiency of the optical lens will be greatly reduced.

Furthermore, the existing straight-through cooling water system is directly drilled or milled on the mold. If you want to manufacture optical lenses with different shapes, you need to re-process the mold according to the shape of the different optical lenses to form an exclusive straight-through. Cooling waterway. That is to say, when manufacturing optical lenses with different shapes, it is necessary to provide a mold with a dedicated cooling water channel design for the shape of the optical lens, thereby increasing the manufacturing cost of the mold and the optical lens.

The present invention is to provide a mold and a turbulence stacking structure to solve the problem that it is difficult for the heat dissipation fluid to effectively assist the heat dissipation of the mold core when manufacturing the optical lens through the existing mold and the existing mold must re-process a dedicated cooling water channel for different optical lenses , And increase the manufacturing cost of optical products.

A mold disclosed in an embodiment of the present invention includes a female mold core and a female spoiler stack structure. The female mold core has a first cooling channel. The mother spoiler stack structure is located in the first cooling flow channel, and includes a plurality of mother spoiler plates stacked on each other. Each of the at least two mother spoilers includes at least one first diverter. Among them, a datum is defined. The normal direction of the reference plane is parallel to a stacking direction of the mother spoiler stack structure. The projections of the two first diverter pieces on the reference surface do not completely overlap, so that the mother spoiler forms a first spoiler channel together.

The turbulence stack structure disclosed in another embodiment of the present invention is suitable for being located in a cooling channel. The spoiler stack structure includes multiple spoilers. The spoilers are stacked on top of each other. Each of the at least two spoilers includes at least one first diverter. Define a datum. The normal direction of the reference plane is parallel to a stacking direction of the spoiler stack structure. The projections of the two first diverters on the reference surface do not completely overlap, so that the spoiler forms a spoiler channel together.

According to the mold and the spoiler stack structure disclosed in the above embodiments, since the spoiler stack structure is located in the cooling flow channel, and the projections of the at least two first diverters on the reference plane of the spoiler stack structure do not completely overlap. Therefore, when the heat-dissipating fluid passes through the cooling flow channel, turbulent flow is formed in the spoiler channel, and the time for the heat-dissipating fluid to stay in the spoiler stack structure is extended. In this way, the heat exchange efficiency with the turbulence stack structure can be increased, and the heat dissipation effect of the heat dissipation fluid can be improved. On the other hand, when the spoiler stack structure is located in the first cooling flow channel of the female mold core and is a mother spoiler stack structure, at least two first splitters that do not completely overlap can form a heat dissipating fluid in the first spoiler channel Turbulent flow, which in turn enhances the effect of the heat dissipation fluid to assist the heat dissipation of the female mold core.

In addition, since the first spoiler is made up of these mother spoilers. Therefore, the user can rearrange the mother spoiler according to the temperature distribution of different optical products, and piece together the first spoiler corresponding to the different temperature distribution. In this way, there is no need to provide a mold with a dedicated cooling channel design by re-cutting, which reduces the cost of manufacturing optical finished products.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principles of the present invention, and provide a further explanation of the scope of the patent application of the present invention.

Please refer to Figure 1 to Figure 2. FIG. 1 is a perspective view of a mold according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the mold of FIG. 1.

The mold 10 of this embodiment is used to manufacture an optical finished product 15 and includes a female mold core 20, a male mold core 30, a plurality of cooling tubes 40, a female spoiler stack structure 50 and a male spoiler stack structure 60, for example.

The female mold core 20 has a first cooling channel 21. The male mold core 30 is disposed on one side of the female mold core 20 and has a second cooling channel 31. The cooling tubes 40 are respectively disposed in the female mold core 20 and the male mold core 30, respectively connected to the first cooling flow channel 21 and the second cooling flow channel 31, and further used to guide a heat dissipating fluid (not shown) to the first A cooling flow channel 21 and a second cooling flow channel 31.

Please refer to Figure 2 to Figure 5. FIG. 3 is a perspective view of the mother spoiler stack structure of FIG. 1, which has a square shape. 4 is an exploded schematic view of the mother spoiler stack structure of FIG. 3. FIG. 5 is a perspective schematic view of two mother spoilers in the mother spoiler stack structure of FIG. 3.

The mother spoiler stack structure 50 is located in the first cooling flow channel 21 and includes a plurality of mother spoiler plates. These mother spoilers are the plates with the hollow structure in FIG. 4 respectively. The mother spoilers are stacked on each other along a stacking direction A, and are fixed to each other by diffusion welding, for example. The mutually fixed mother spoiler has an inflow surface 5000, a first-run outlet surface 5001, and an annular side surface 5002. The inflow surface 5000 faces away from the outflow surface 5001. The annular side surface 5002 is interposed between the inflow surface 5000 and the outflow surface 5001.

Since the shape of these mother spoilers varies widely, only some of the mother spoilers will be described. Part of these mother spoilers includes a first mother spoiler 501, a second mother spoiler 502 and two partition spoilers 503.

As shown in FIG. 4, the first mother spoiler 501 includes two side strips 5010, a top side strip 5011, a bottom side strip 5012, a plurality of first diverter pieces 5013 and a plurality of second diverter pieces 5014. The top side bar 5011, the bottom side bar 5012, the first shunt pieces 5013 and the second shunt pieces 5014 are between the two side bars 5010. In detail, the opposite sides of the top side bar 5011 are respectively connected to the two side bars 5010, and the opposite sides of the bottom side bar 5012 are respectively connected to the two side bars 5010. Therefore, the two side side bars 5010, the top side bar 5011, and the bottom side bar 5012 have a mouth-shaped appearance, for example. The first flow dividing elements 5013 and the second flow dividing elements 5014 are perpendicular to and intersect with each other, for example. The opposite sides of each first diverter 5013 are respectively connected to the two side strips 5010, and the opposite sides of each second diverter 5014 are respectively connected to the top strip 5011 and the bottom strip 5012.

The second mother spoiler 502 includes two side strips 5020, a plurality of first flow dividers 5021, and a plurality of second flow dividers 5022. The first flow dividing members 5021 and the second flow dividing members 5022 are interposed between the two side strips 5020. In detail, the first shunt pieces 5021 and the second shunt pieces 5022 are perpendicular to and intersect with each other, for example, and the opposite sides of each first shunt piece 5021 are respectively connected to the two side strips 5020.

The present invention is not limited to the structures of the first mother spoiler 501 and the second mother spoiler 502. In other embodiments, the structure of the first mother spoiler or the second mother spoiler may also be based on actual conditions Demand. In detail, in other embodiments, an acute angle may be formed between the first shunt pieces and the second shunt pieces. In other embodiments, there may be only the first mother spoiler in the mother spoilers The board and the second mother spoiler each include a first diverter, and only the first mother spoiler and the second mother spoiler each include a second diverter, or in other embodiments, the first mother The spoiler and the second mother spoiler may not only include the second diverter, but only the first diverter.

In addition, the two-zone partition plate 503 may be disposed at the front end of the first mother spoiler 501. For example, the inflow surface 5000 is located on the outer partition baffle 503, and the second flow divider 5031 of the outer partition baffle 503 divides the inflow surface 5000 into a central region B1 and two side regions B2, B3. The central region B1 is between the two side regions B2 and B3, and the area of the central region B1 is larger than the area of each of the two side regions B2 and B3. The remaining mother spoilers each have a central area B1 and two side areas B2, B3 corresponding to the central area B1 and the two side areas B2, B3 of the partition spoiler 503, respectively. In this way, the area with a larger central thickness of the optical product can have a larger area for each central area B1, and more heat dissipating fluid circulates, thereby increasing the heat dissipating capacity of the heat dissipating fluid.

As shown in FIG. 5, a reference plane S is defined to explain the overlapping relationship between the first and second mother spoilers 501 and 502. The normal direction N of the reference plane S is parallel to the stacking direction A. The projections P1 of the first shunting elements 5013 on the reference plane S and the projections P2 (portions where spots are drawn) of the first shunting elements 5021 on the reference plane S do not substantially completely overlap. In this embodiment, the substantially incomplete overlap of the projections includes that the smaller projection is located within the larger projection, one of the projections is located within the range of the other projection, and one of the projections is not within the range of the other projection . Therefore, the first and second mother spoilers 501 and 502 can form a part of a first spoiler 5003 (as shown in FIG. 2) through the first splitters 5013 and 5021. The rest of the first spoiler 5003 (shown in FIG. 2) is formed in a similar manner, so it will not be described in detail. As shown in FIG. 2, opposite sides of the first spoiler 5003 communicate with the inflow surface 5000 and the outflow surface 5001, respectively.

When the heat-dissipating fluid flows through the first mother spoiler 501 in the first spoiler 5003, the heat-dissipating fluid will be blocked by the first diverter 5013 to divert. Then, when the heat dissipation fluid flows from the first mother spoiler 501 to the second mother spoiler 502, the heat dissipation fluid is blocked by the first diverter 5021 and is diverted. Since the first diverter 5013 of the first mother spoiler 501 and the first diverter 5021 of the second mother spoiler 502 do not completely overlap, the heat dissipation fluid is affected by the first diverter 5013 and the first The flow dividing member 5021 blocks and divides the flow, so that the heat dissipation fluid is strongly disturbed in the first spoiler 5003 and forms a turbulent flow. In this way, the time that the heat dissipation fluid stays in the first spoiler 5003 can be extended, thereby improving the heat exchange efficiency of the heat dissipation fluid.

In addition, as shown in FIGS. 2 and 4, the side of the second mother spoiler 502 near the public spoiler stack structure 60 further has a plurality of openings 5023. In this way, these openings 5023 can allow more heat dissipation fluid to flow to the side of the female mold core 20 close to the male mold core 30, thereby enhancing the heat dissipation of the heat dissipation fluid to the side of the female mold core 20 close to the male mold core 30 effect. However, the present invention is not limited to the arrangement of the opening 5023. In other embodiments, the second mother spoiler may not need to have an opening.

In addition, as shown in FIG. 2, the female mold core 20 has a mold cavity 22 that can be used to accommodate the optical product 15. The mother spoiler stack structure 50 has a concave structure 5004 matching the cavity 22. The concave structure 5004 has a central axis C. The depth E1 of the concave structure 5004 at the central axis C is deeper than the depth E2 at the edge of the concave structure 5004. Further, the deeper area of the recessed structure 5004 matches the deeper area of the cavity 22 of the female mold core 20, and the deeper area of the cavity 22 is used to accommodate the thicker area of the optical product 15. The arrangement of the recessed structure 5004 is not intended to limit the present invention. In other embodiments, the mother spoiler stack structure can also be viewed as the shape of the optical product without having the recessed structure 5004.

Please refer to FIG. 6, which is a schematic side view of the mother spoiler stack structure of FIG. 3. In order to meet the different heat dissipation requirements of different regions in the mother spoiler stack structure 50, the design value of the porosity of each region can be adjusted. The porosity is the value obtained by dividing the total area of the area by the area of the opening in the area. For example, on the reference plane S, a region closer to the central axis C in the mother spoiler stack structure 50 has a larger porosity. For example, the porosity in the area ab of FIG. 6 is 0.4, the porosity in the area ac is 0.5, the porosity in the area ad is 0.6 and the porosity in the area ae is 0.7. In other words, since the distance between the area ae and the central axis C is the smallest, there is a higher heat dissipation requirement corresponding to the thicker area of the optical product, and the opening needs to occupy a larger area per unit area. In areas with higher porosity, more heat-dissipating fluid can flow through to help dissipate heat in areas with thicker optical products.

Please refer to FIG. 2 again, in order to improve the durability of the mother spoiler stacked structure 50, the multiple turning points 530 of the stepped concave structure 5004 may have a smaller porosity to increase the structural strength of these turning points 530, and Reduce the damage rate of these mother spoilers.

Please refer to Figure 2, Figure 7 and Figure 8. 7 is a perspective view of the public disturbance stack structure of FIG. 1. FIG. 8 is an exploded schematic view of the public disturbance stack structure of FIG. 7. The public spoiler stack structure 60 includes a plurality of public spoilers. The male spoilers are stacked on each other to form a second spoiler 6000. For example, the first public spoiler 601 includes a third diverter 6010, and the second public spoiler 602 includes a third diverter 6020. The third diverter 6010 and the third diverter 6020 do not completely overlap, so that the first male spoiler 601 and the second male spoiler 602 together form a partial second spoiler 6000. The description of the incomplete overlap has been described in detail in the first embodiment, so it will not be repeated here. In addition, the manner in which the male spoiler forms the second spoiler 6000 is similar to the manner in which the female spoiler forms the first spoiler 5003 (as shown in FIG. 2 ), so it will not be described again.

Furthermore, in this embodiment, the first public spoiler 601 only includes a third diverter 6010, and the second public spoiler 602 only includes a third diverter 6020, but the invention is not limited thereto. In other embodiments, the first male spoiler may further include a fourth diverter perpendicular to the third diverter, and the second male spoiler further includes a fourth diverter perpendicular to the third diverter . The fourth diverter of the first male spoiler does not completely overlap the fourth diverter of the second male spoiler.

In addition, the female mold core 20 and the male mold core 30 of this embodiment are respectively provided with a female spoiler stack structure 50 and a male spoiler stack structure 60, but the present invention is not limited thereto, and in other embodiments, The public spoiler stack structure is omitted. Furthermore, in other embodiments, the mother spoiler stack structure or the public spoiler stack structure may also be disposed as a spoiler stack structure in the cooling channels of other heat dissipation devices.

Please refer to Figure 9 and Figure 10. 9 is a perspective view of a mother spoiler stack structure of a mold according to a second embodiment of the present invention. FIG. 10 is an exploded schematic view of the mother spoiler stack structure of FIG. 9.

The mother spoiler stack structure 50a of this embodiment includes a plurality of mother spoilers. The mother spoilers are stacked on top of each other to form a first spoiler. Since the way in which the mother spoilers of this embodiment form the first spoiler is similar to the way in which the mother spoilers of the first embodiment form the first spoiler 5003 (as shown in FIG. 2), it is no longer necessary. Repeat.

For example, the mother spoiler includes a first mother spoiler 501a and a partitioned spoiler 503a. The first mother spoiler 501a includes two side strips 5010a, a first diverter 5011a, a plurality of second diverters 5012a, and a shielding structure 5013a. The first diverter 5011a, the second diverter 5012a and the blocking structure 5013a are interposed between the two side strips 5010a. The first diverter 5011a and the second diverter 5012a are perpendicular and intersect. The first diverter 5011a and the second diverter 5012a are connected to the shielding structure 5013a.

The partition baffle 503a includes two side strips 5030a, two second flow dividing members 5031a, and a shielding structure 5032a. The two second diverter 5031a and the blocking structure 5032a are between the two side strips 5030a. The two second shunt pieces 5031a are connected to the blocking structure 5032a.

Compared with the first mother spoiler and the partitioned spoiler of the first embodiment, the first mother spoiler 501a and the partitioned spoiler 503a of this embodiment additionally include a blocking structure 5013a and a blocking structure 5032a, respectively. The shielding area of the shielding structure 5013a of the first mother spoiler 501a is different from the shielding area of the shielding structure 5032a of the partitioning spoiler 503a. The different shielding regions of the two shielding structures 5013a and 5032a are adjusted according to the shape of the optical product.

The partition baffle 503a of this embodiment is also divided by the second flow dividing member 5020a into an inflow surface 5000a into a central area B1a and two side areas B2a, B3a. The central area B1a is interposed between the two side areas B2a and B3a. The remaining mother spoilers each have a central area B1a and two side areas B2a, B3a corresponding to the central area B1a and the two side areas B2a, B3a of the partition baffle 503a, respectively.

Furthermore, in the first embodiment, the mother spoilers all have the same thickness, but the invention is not limited to this. In this embodiment, at least two mother spoilers have different thicknesses. For example, the thickness T1 of the partitioned baffle 503a in FIG. 10 is greater than the thickness T2 of the first mother spoiler 501a. This embodiment only presents the thickness T1 of the partition baffle 503a and the thickness T2 of the first mother spoiler 501a in the above-mentioned manner only for the convenience of graphical presentation. The purpose of the at least two mother spoilers having different thicknesses is that a thin mother spoiler can be provided in an area with high heat dissipation requirements. In this way, the mother spoiler can be more densely stacked in the area with higher heat dissipation requirements to enhance the disturbance effect of the mother spoiler on the heat dissipation fluid, thereby extending the residence time of the heat dissipation fluid in the area with higher heat dissipation requirements.

Please refer to FIG. 11 and FIG. 12. 11 is a perspective view of a public disturbance stack structure of a mold according to a second embodiment of the present invention. FIG. 12 is an exploded schematic view of the public disturbance stack structure of FIG. 11.

In this embodiment, the public turbulence stack structure 60a includes a central portion 610a, a first side portion 620a, and a second side portion 630a, that is to say, the public turbulence stack structure 60a of this embodiment can be regarded as the first The public spoiler stack structure in the embodiment is divided into three blocks. The first side portion 620a and the second side portion 630a are located on opposite sides of the central portion 610a, respectively, and maintain a gap G1 with the central portion 610a. The width W1 inside the center portion 610a is larger than the width W2 outside the center portion 610a. When the first side portion 620a, the second side portion 630a and the central portion 610a maintain the gap G1, a thimble (not shown) provided in the mold can pass through the gap G1 to assist the demolding of the optical product. In addition, the provision of the gap G1 can also reduce the materials required for manufacturing the public disturbance stack structure 60a and reduce the manufacturing cost.

In the first embodiment and the second embodiment, the shape of the female spoiler and the shape of the male spoiler are both rectangular parallelepipeds, but it is not limited to this, please refer to FIGS. 13 and 14. 13 is a perspective view of a mother spoiler stack structure of a spoiler module according to a third embodiment of the present invention. 14 is an exploded schematic view of the mother spoiler stack structure of FIG. 13.

In this embodiment, the outer shape of the mother spoilers of the mother spoiler stack structure 50b is a disc shape, and the mother spoilers are stacked on each other. In this embodiment, the mother spoilers include a first mother spoiler 501b and a second mother spoiler 502b. The first mother spoiler 501b includes a plurality of first flow dividing members 5010b, and the first flow dividing members 5010b extend along a first radial direction L1. The second mother spoiler 502b includes a plurality of first flow dividing members 5020b, and the first flow dividing members 5020b extend along a second radial direction L2. The first flow dividing members 5010b and the first flow dividing members 5020b do not completely overlap to form a local first spoiler 5003b. The entire first spoiler 5003b extends along a spiral extending direction D1.

See Figure 15. 15 is a perspective view of a public spoiler stack structure of a spoiler module according to a third embodiment of the present invention.

In this embodiment, the public disturbance stack structure 60b includes a central portion 610b, a first side portion 620b, and a second side portion 630b. The first side portion 620b and the second side portion 630b are respectively located on opposite sides of the central portion 610b, and maintain a gap G2 with the central portion 610b. A third spoiler 6100b in the central portion 610b extends along a curved extension direction D2. The manner in which the third spoiler 6100b is formed in the central portion 610b is similar to the manner in which the mother spoiler in the first embodiment forms the first spoiler, and thus will not be described again.

A fourth spoiler 6200b of the first side portion 620b extends along a curved extension direction D3. The manner in which the first side portion 620b forms the fourth spoiler 6200b is similar to the manner in which the mother spoiler of the first embodiment forms the first spoiler, so it will not be described again.

A fifth spoiler 6300b of the second side portion 630b extends along a curved extension direction D4. The second side portion 630b forms the fifth spoiler 6300b in a manner similar to that of the mother spoiler of the first embodiment to form the first spoiler, so it will not be described again.

In addition, the extending manner of the extending direction D2 in the central portion 610b is not intended to limit the present invention. In other embodiments, the extending direction in the central portion may also extend in a linear manner.

The following will compare the heat dissipation effect of the traditional mold without the spoiler stack structure and the molds of the first to third embodiments of the present invention and the quality of the optical products manufactured by using the above molds. Four experimental data will be used to compare the heat dissipation effect of each mold and the quality of the optical products manufactured by each mold.

First, compare the heat dissipation effect of each mold with the temperature distribution of the optical product after 360 seconds of cooling as an example. After 360 seconds of cooling, the traditional mold without a spoiler stack structure makes the temperature of the optical finished product between 80 degrees Celsius and 146.12 degrees Celsius. The mold of the first embodiment of the present invention makes the temperature of the optical finished product between 79.38 degrees Celsius. Degrees to 139.67 degrees Celsius, the mold of the second embodiment of the present invention makes the temperature of the optical finished product between 79.9 degrees Celsius and 130.9 degrees Celsius, and the mold of the third embodiment of the present invention makes the temperature of the optical finished product between the Celsius Between 73.9 degrees and 111.3 degrees Celsius. According to the above data, the molds of the embodiments of the present invention can reduce the temperature of the finished optical products more quickly than conventional molds, and have better heat dissipation effects.

Taking the mold of the third embodiment as an example, and only for the cooling effect of the optical product, it takes only 360 seconds to cool the optical product to the ejection temperature (for example, 112°C) using the mold according to the present invention. Can eject the mold. However, in a conventional mold without a spoiler stack structure, the optical finished product still has a temperature higher than 140°C under a cooling time of 360 seconds, so that the optical finished product cannot be ejected from the mold.

Second, compare the heat dissipation effect of each mold by taking the cooling time required by the mold and optical products as an example. It takes 427.9 seconds to cool the mold and optical finished product in the traditional mold without a spoiler stack structure, 397.94 seconds to cool the mold and the optical finished product in the first embodiment of the present invention, and 393.84 seconds to cool the mold and the optical finished product in the second embodiment of the present invention. Molds and optical products, and the mold of the third embodiment of the present invention requires 397.45 to cool the molds and optical products. According to the above data, the molds of the embodiments of the present invention can cool the molds and optical products in a shorter time than conventional molds, and thus have better heat dissipation effects.

Third, since excessive warpage will affect the optical characteristics of the optical products, the warpage of the optical products manufactured by each mold is used as an example to compare the quality of the optical products manufactured by each mold. Warpage here refers to the displacement between the actual formation position and the expected formation position of the optical product. The warpage of the optical finished product manufactured by the traditional mold without the spoiler stack structure is between 0 and 0.46 millimeters (mm), and the warpage of the optical finished product manufactured by the mold of the first embodiment of the present invention is between 0 mm ( mm) to 0.382 millimeters (mm), the warpage of the optical product manufactured by the mold of the second embodiment of the present invention is between 0 millimeters (mm) and 0.388 millimeters (mm), and the third embodiment of the present invention The warpage of the optical finished product manufactured by the mold is between 0 millimeter (mm) and 0.389 millimeter (mm). According to the above data, compared with the optical finished products manufactured by the traditional mold, the optical finished products manufactured by the molds of the embodiments of the present invention have lower warpage, which makes the optical manufactured by the molds of the embodiments of the present invention. The finished product has better quality.

Fourth, since the excessively high thermal residual stress in the optical finished product will affect the optical characteristics of the optical finished product, the thermal residual stress in the optical finished product manufactured by each mold is used as an example to compare the quality of the optical finished product manufactured by each mold. The thermal residual stress of the optical finished product manufactured by the traditional mold without the turbulent stacked structure is between 0.008 million Pa (Mpa) and 85.44 million Pa (Mpa), which is manufactured by the mold of the first embodiment of the present invention The thermal residual stress of the finished optical products is between 0.027 million Pa (Mpa) and 66.43 million Pa (Mpa). The thermal residual stress of the finished optical products manufactured by the mold of the second embodiment of the present invention is between 0.028 million Pa (Mpa) to 43.32 million Pa (Mpa) and the thermal residual stress of the optical finished product manufactured by the mold of the third embodiment of the present invention is between 0.02 million Pa (Mpa) and 42.85 million Pa (Mpa) between. According to the above data, compared with the optical finished products manufactured by traditional molds, the optical finished products manufactured by the molds of the embodiments of the present invention have lower thermal residual stress, which makes the molds manufactured by the embodiments of the present invention The finished optical products have better quality.

According to the mold and the spoiler stack structure disclosed in the above embodiments, since the spoiler stack structure is located in the cooling flow channel, and the projections of the at least two first diverters on the reference plane of the spoiler stack structure do not completely overlap. Therefore, when the heat-dissipating fluid passes through the cooling flow channel, turbulent flow is formed in the spoiler channel, and the time for the heat-dissipating fluid to stay in the spoiler stack structure is extended. In this way, the heat exchange efficiency with the turbulence stack structure can be increased, and the heat dissipation effect of the heat dissipation fluid can be improved. On the other hand, when the spoiler stack structure is located in the first cooling flow channel of the female mold core and is a mother spoiler stack structure, at least two first splitters that do not completely overlap can form a heat dissipating fluid in the first spoiler channel Turbulent flow, which in turn enhances the effect of the heat dissipation fluid to assist the heat dissipation of the female mold core.

In addition, since the first spoiler is made up of these mother spoilers. Therefore, the user can rearrange the mother spoiler according to the temperature distribution of different optical products, and piece together the first spoiler corresponding to the different temperature distribution. In this way, there is no need to provide a mold with a dedicated cooling channel design by re-cutting, which reduces the cost of manufacturing optical finished products.

Although the present invention is disclosed as above with the foregoing embodiments, it is not intended to limit the present invention. Any person familiar with similar arts can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of patent protection for inventions shall be subject to the scope defined in the patent application scope attached to this specification.

10: mold 20: female mold core 21: first cooling runner 22: mold cavity 30: male mold core 31: second cooling runner 40: cooling pipe 50, 50a, 50b: female disturbance flow stacking structure 5000, 5000a: Inflow surface 5001: Outflow surface 5002: annular side surfaces 5003, 5003b: first spoiler 5004: recessed structure 501, 501a, 501b: first mother spoiler 502, 502b: second mother spoiler 503, 503a: partition Separator 5010, 5020, 5010a, 5030a: side strip 5011: top side strip 5012: bottom side strip 5013, 5021, 5011a, 5010b, 5020b: first diverter 5014, 5022, 5031, 5012a, 5031a: second Diverter 5023: openings 5013a, 5032a: blocking structure 530: turning points 60, 60a, 60b: public spoiler stacking structure 601: first public spoiler 602: second public spoiler 6010, 6020: third diverter Item 6000: Second spoiler 610a, 610b: Central part 6100b: Third spoiler 620a, 620b: First side part 6200b: Fourth spoiler 630a, 630b: Second side part 6300b: Fifth spoiler Lane A: Stacking direction B1, B1a: Central area B2, B2a, B3, B3a: Side area N: Normal direction C: Central axis E1, E2: Depth T1, T2: Thickness G1, G2: Gap W1, W2: Width D1, D2, D3, D4: extension direction P1, P2: projection S: reference plane L1: first radial direction L2: second radial direction 15: optical finished product

FIG. 1 is a perspective view of a mold according to a first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the mold of FIG. 1. 3 is a perspective view of the mother spoiler stack structure of FIG. 1. 4 is an exploded schematic view of the mother spoiler stack structure of FIG. 3. FIG. 5 is a perspective schematic view of two mother spoilers in the mother spoiler stack structure of FIG. 3. 6 is a schematic side view of the mother spoiler stack structure of FIG. 3. 7 is a perspective view of the public disturbance stack structure of FIG. 1. FIG. 8 is an exploded schematic view of the public disturbance stack structure of FIG. 7. 9 is a perspective view of a mother spoiler stack structure of a mold according to a second embodiment of the present invention. FIG. 10 is an exploded schematic view of the mother spoiler stack structure of FIG. 9. 11 is a perspective view of a public disturbance stack structure of a mold according to a second embodiment of the present invention. FIG. 12 is an exploded schematic view of the public disturbance stack structure of FIG. 11. 13 is a perspective view of a mother spoiler stack structure of a spoiler module according to a third embodiment of the present invention. 14 is an exploded schematic view of the mother spoiler stack structure of FIG. 13. 15 is a perspective view of a public spoiler stack structure of a spoiler module according to a third embodiment of the present invention.

50: mother spoiler stack structure

501: First mother spoiler

502: second mother spoiler

503: Partition spoiler

5000: inflow surface

5001: outflow surface

5002: circular side

5004: sunken structure

A: Stacking direction

C: central axis

Claims (20)

A mold includes: a female mold core having a first cooling flow channel; and a female spoiler stack structure located in the first cooling flow channel and including a plurality of mother spoiler plates stacked on each other, at least two of which The mother spoilers each include at least one first diverter; wherein, a reference plane is defined, a normal direction of the reference plane is parallel to a stacking direction of the mother spoiler stack structure, and the at least two first diverter members are located in the The projections on the reference plane do not completely overlap, so that the mother spoilers together form a first spoiler. The mold as described in item 1 of the patent application scope, wherein at least two of the mother spoilers each include at least one second diverter, the projections of the at least two second diverters on the reference plane do not completely overlap, and the At least two first diverter members are not parallel to the at least two second diverter members. The mold as described in item 2 of the patent application scope, wherein the at least two first diverting members are orthogonal to the at least two second diverting members. The mold as described in item 1 of the patent application scope, wherein the porosity of the mother spoiler stack structure on the reference surface is between 0.4 and 0.7. The mold as described in item 1 of the patent application, wherein the mother spoiler stack structure has a concave structure with a central axis, and the depth of the concave structure on the central axis is deeper than the depth around the concave structure, The area of the mother spoiler stack structure closer to the central axis has a larger porosity on the reference plane. The mold described in item 1 of the patent application scope further includes a male mold core and a public turbulence stacking structure, the male mold core is disposed on one side of the female mold core, and the male mold core has a second cooling flow The public turbulence stack structure is located in the second cooling flow channel, the public turbulence stack structure includes a plurality of public turbulence plates stacked on top of each other, at least two of the public turbulence plates each include at least a third diverter, The at least two third shunt elements do not completely overlap, so that the male spoilers together form a second spoiler. The mold as described in item 6 of the patent application range, wherein at least one of the mother spoilers has a plurality of openings connected to the first spoiler on a side close to the public spoiler stack structure. The mold described in item 6 of the patent application scope, wherein the public disturbance stack structure includes a central portion, a first side portion, and a second side portion, the first side portion and the second side portion are located at the The two opposite sides of the central part respectively maintain a gap with the central part. The mold described in item 1 of the patent application scope, wherein at least two of the mother spoilers have different thicknesses. The mold as described in item 1 of the patent application scope, wherein the mother spoilers each include two side strips and a shielding structure, and each of the at least two mother spoilers includes the at least one first diverter In this case, the at least one first diverter is between the two side strips, and in each of the mother spoilers, the shielding structure is between the two side strips. The mold as described in item 1 of the patent application scope, wherein the outer shape of the mother spoilers is disc-shaped. The mold as described in item 1 of the patent application, wherein the outer shape of the first spoiler is spiral, straight or curved. A spoiler stacking structure suitable for being located in a cooling channel, the spoiler stacking structure includes: a plurality of spoilers, the spoilers are stacked on top of each other, at least two of the spoilers each include at least a first diverter , Define a datum plane, a normal direction of the datum plane is parallel to a stacking direction of the spoiler stack structure, and the projections of the at least two first shunt members on the datum plane do not completely overlap, so that the spoilers The plates together form a spoiler. The spoiler stack structure as described in item 13 of the patent application scope, wherein at least two of the spoilers each include at least one second diverter, and the projections of the at least two second diverters on the reference plane do not completely overlap, Moreover, the at least two first diverter pieces are not parallel to the at least two second diverter pieces. The spoiler stack structure as described in item 14 of the patent application scope, wherein the at least two first diverter members are orthogonal to the at least two second diverter members. The spoiler stack structure as described in item 13 of the patent application range, wherein the porosity of the spoiler stack structure on the reference surface is between 0.4 and 0.7. The spoiler stack structure as described in item 13 of the patent application scope, wherein the spoilers have an inflow surface, a first-outflow surface, and an annular side surface, the inflow surface faces away from the outflow surface, and the annular side surface is between the inflow surface And the outflow surface, the inflow surface and the outflow surface are respectively connected to opposite sides of the spoiler, and some of the spoilers have a plurality of openings on one side of the annular side surface, the openings Connected to the spoiler. The spoiler stack structure as described in item 13 of the patent application scope, wherein the spoilers have a recessed structure with a central axis, and the depth of the recessed structure on the central axis is greater than the depth around the recessed structure Deep, the region of the turbulent stacked structure closer to the central axis has a larger porosity on the reference plane. The spoiler stack structure as described in item 13 of the patent application scope, wherein the spoilers each include two side strips and a shielding structure, and each of the at least two spoilers includes the at least one first diverter In the board, the at least one first diverter is between the two side bars, and in each of the spoilers, the shielding structure is between the two side bars. The spoiler stack structure as described in item 13 of the patent application scope, wherein the outer shape of the spoilers is a rectangular parallelepiped or a disc.

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