Molding apparatus

Abstract

This invention discloses a molding apparatus, comprising a frame, a light-transmitting cover, a heating assembly, and a mold assembly. The frame has a lower flange. A molding cavity is formed within the light-transmitting cover, which has a lower opening and an upper opening. The light-transmitting cover is movable to the periphery of the lower opening and seals with the lower flange. A heating lamp of the heating assembly is located outside the light-transmitting cover. The mold assembly includes an upper mold, a lower mold, and a driving component. The upper mold is fixed to the frame and slidably passes through the upper opening. The peripheral wall of the upper mold is sealed with the peripheral wall of the upper opening. The lower mold slidably passes through a hole in the lower flange, and the peripheral wall of the lower mold is sealed with the peripheral wall of the lower flange hole. The driving component drives the processing end of the lower mold to approach or move away from the processing end of the upper mold. A lower channel is provided on the lower flange, which communicates with the vacuum channel of a first vacuuming component and the molding cavity. When the light-transmitting cover is sealed with the lower flange, the first vacuuming component evacuates the molding cavity. This invention's technical solution can avoid residual air on the glass.

Description

Technical Field

[0001] This invention relates to the field of glass production technology, and in particular to a molding equipment. Background Technology

[0002] Glass molding is a process used to manufacture glass optical components. It involves heating and softening glass at high temperatures, then pressing it into a pre-designed mold to form the desired shape and surface features inside the mold.

[0003] To prevent glass oxidation, the cavity containing the glass needs to be purged (air removed) before heating. The common method is to continuously inject nitrogen gas. However, when processing irregularly shaped lenses, as shown in the attached... Figure 1 As shown, nitrogen (N2) cannot expel the air between the glass 300 and the lower mold 200. When the upper mold 100 presses downward, air 400 is easily left on the finally formed glass 300, causing product defects. Summary of the Invention

[0004] The main objective of this invention is to provide a molding device that addresses the technical problem that existing molding processes often result in residual air on the molded glass.

[0005] To achieve the above objectives, the molding equipment proposed in this invention includes a frame, a light-transmitting cover, a heating component, and a mold component;

[0006] The frame is provided with a lower flange, and a lower flange hole is provided through the lower flange;

[0007] The light-transmitting cover is movably disposed on one side of the lower flange. A forming cavity is formed inside the light-transmitting cover. The forming cavity has a lower opening at the end of the light-transmitting cover facing the lower flange and an upper opening at the end of the light-transmitting cover facing away from the lower flange. The light-transmitting cover can reciprocate relative to the frame and can be moved to a position where the periphery of the lower opening is sealed and connected to the lower flange.

[0008] The heating assembly includes a heating lamp disposed on the outer side of the peripheral wall of the light-transmitting cover; and

[0009] The mold assembly includes an upper mold, a lower mold, and a drive component. The upper mold is fixed to the frame and passes through the upper opening. The processing end of the upper mold is located within the forming cavity. The peripheral wall of the upper mold is sealed to the peripheral wall of the upper opening, and the peripheral wall of the upper mold is slidably disposed on the peripheral wall of the upper opening. The lower mold passes through the lower flange hole, and the peripheral wall of the lower mold is sealed to the peripheral wall of the lower flange hole, and the peripheral wall of the lower mold is slidably disposed on the peripheral wall of the lower flange hole. The drive component is drively connected to the lower mold and is used to drive the processing end of the lower mold closer to or further away from the processing end of the upper mold.

[0010] The lower flange is provided with a lower channel, which is connected to the vacuum channel of the first vacuum component. When the light-transmitting cover is sealed to the lower flange, the lower channel is connected to the molding cavity to evacuate the molding cavity.

[0011] In one possible implementation, the light-transmitting cover includes a cover body and an upper flange, the cover body having the molding cavity and the lower opening, the upper flange being disposed on the end of the cover body facing away from the lower flange, and the upper flange hole of the upper flange being formed as the upper opening;

[0012] The upper flange is provided with an upper channel, which is connected to the molding cavity and to the vacuum channel of the second vacuum component.

[0013] In one possible implementation, the upper mold includes an upper shaft, an upper air guide plate, and an upper mold body. The upper shaft passes through the upper opening, and the peripheral wall of the upper shaft is sealed to the peripheral wall of the upper opening. The peripheral wall of the upper shaft is slidably disposed on the peripheral wall of the upper opening.

[0014] The end of the upper shaft located within the molding cavity is fixedly connected to one side of the upper air guide plate, and the other side of the upper air guide plate is fixedly connected to the upper mold body; wherein...

[0015] The upper air guide plate forms a plurality of air guide grooves, each of which extends from the center of the upper air guide plate toward the periphery of the upper air guide plate. A gas flow channel is formed in the upper shaft body, and the gas flow channel is connected to an inert gas supply component. The gas flow channel is connected to the plurality of air guide grooves respectively.

[0016] In one possible implementation, the gas flow channel includes an inner flow channel and an outer flow channel, the outer flow channel being disposed around the inner flow channel, the inner flow channel communicating with one of the inert gas supply components, and the outer flow channel communicating with another of the inert gas supply components;

[0017] The air guide groove includes multiple upper air grooves and multiple lower air grooves. The multiple upper air grooves are formed on the side of the upper air guide plate facing the upper shaft, and the multiple lower air grooves are formed on the side of the upper air guide plate away from the upper shaft. The upper air guide plate has multiple air guide holes at its center, and the multiple air guide holes correspond one-to-one with the multiple lower air grooves. The lower air grooves extend from the corresponding air guide holes toward the periphery of the upper air guide plate and are connected to the inner flow channel through the corresponding air guide holes. One end of the upper air groove is spaced apart from the air guide holes, and the other end of the upper air groove extends toward the periphery of the upper air guide plate. Each upper air groove is connected to the outer flow channel.

[0018] In one possible implementation, the upper shaft body is further formed with a cooling channel, the cooling channel being arranged around the gas channel and not communicating with the gas channel. The portion of the upper shaft body located outside the light-transmitting cover is formed with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet being respectively connected to the cooling channel.

[0019] In one possible implementation, the lower mold includes a lower shaft, a lower air guide plate, and a lower mold body. The lower shaft is connected to the driving component. The lower shaft passes through the lower flange hole. The peripheral wall of the lower shaft is sealed to the peripheral wall of the lower flange hole, and the peripheral wall of the lower shaft is slidably disposed on the peripheral wall of the lower flange hole.

[0020] The end of the lower shaft near the upper shaft is fixedly connected to one side of the lower air guide plate, and the other side of the lower air guide plate is fixedly connected to the lower mold body; wherein...

[0021] The structure of the upper shaft is the same as that of the lower shaft;

[0022] The structure of the upper air guide plate is the same as that of the lower air guide plate.

[0023] In one possible implementation, the heating lamp includes a plurality of first arc-shaped light strips and a plurality of second arc-shaped light strips. Each first arc-shaped light strip is arranged around the light-transmitting cover on a first side, and each second arc-shaped light strip is arranged around the light-transmitting cover on a second side. The plurality of first arc-shaped light strips are arranged sequentially along the length of the light-transmitting cover, and the plurality of second arc-shaped light strips are arranged sequentially along the length of the light-transmitting cover.

[0024] In one possible implementation, the heating assembly further includes a furnace, with an upper through hole and a lower through hole formed at two opposite ends of the furnace, the upper through hole and the lower through hole being connected, a light-transmitting cover being disposed through the upper through hole and the lower through hole, and a portion of the light-transmitting cover located between the upper through hole and the lower through hole cooperating with the furnace to form a heating cavity, each of the first arc-shaped light strips and each of the second arc-shaped light strips being disposed within the heating cavity.

[0025] In one possible implementation, the furnace wall located within the heating chamber of the hot furnace is formed with a plurality of first arc-shaped grooves and a plurality of second arc-shaped grooves. The plurality of first arc-shaped grooves correspond one-to-one with the plurality of first arc-shaped light strips, and the first arc-shaped light strips are installed in the corresponding first arc-shaped grooves. The plurality of second arc-shaped grooves correspond one-to-one with the plurality of second arc-shaped light strips, and the second arc-shaped light strips are installed in the corresponding second arc-shaped grooves.

[0026] The opening of each of the first arc-shaped grooves faces the light-transmitting cover, and the groove wall of each of the first arc-shaped grooves can be set to reflect light.

[0027] The opening of each of the second arc-shaped grooves faces the light-transmitting cover, and the groove walls of each of the second arc-shaped grooves are reflective.

[0028] The molding equipment of this invention evacuates the sealed molding cavity before molding the glass preform. Under the influence of air pressure, the air between the glass preform and the mold can be extracted through the gap between the glass preform and the mold. This avoids residual air in the molded product due to the presence of air between the glass preform and the mold, which would cause product defects. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0030] Figure 1 This is a simplified schematic diagram of the existing molding process;

[0031] Figure 2 This is a schematic diagram of the structure of an embodiment of the molding equipment of the present invention;

[0032] Figure 3 for Figure 1 A cross-sectional schematic diagram;

[0033] Figure 4 for Figure 3A magnified view of a section at point A in the middle;

[0034] Figure 5 for Figure 4 Schematic diagram of the upper and middle air guide plates;

[0035] Figure 6 for Figure 5 Another structural diagram from another perspective;

[0036] Figure 7 for Figure 3 A structural diagram with some parts omitted;

[0037] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0038] Figure 9 for Figure 2 Schematic diagram of the heating element;

[0039] Figure 10 for Figure 9 A structural diagram with some parts omitted.

[0040] Explanation of icon numbers:

[0041] 100. Upper mold; 200. Lower mold; 300. Glass; 400. Residual air; 1. Frame; 2. Lower flange; 21. Lower flange hole; 22. Lower channel; 3. First vacuuming component; 4. Light-transmitting cover; 41. Cover body; 411. Molding cavity; 412. Lower opening; 42. Upper flange; 421. Upper opening; 422. Upper channel; 5. Heating assembly; 51. Heating lamp; 511. First arc-shaped light strip; 52. Furnace; 521. Upper through hole; 522. Lower through hole; 523. Heating cavity; 524. First arc-shaped groove; 6. Mold assembly; 6 1. Upper mold; 611. Upper shaft; 6111. Gas flow channel; 6111a. Inner flow channel; 6111b. Outer flow channel; 6112. Cooling flow channel; 6112a. Inner coolant flow channel; 6112b. Outer coolant flow channel; 612. Upper air guide plate; 6121. Air guide groove; 6121a. Upper air groove; 6121b. Lower air groove; 6122. Air guide hole; 613. Upper mold body; 62. Lower mold; 621. Lower shaft; 622. Lower air guide plate; 623. Lower mold body; 63. Driving component; 7. Force sensor; 8. Temperature sensor.

[0042] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0044] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0045] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, provided that they are feasible for those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0046] This invention proposes a molding device.

[0047] In embodiments of the present invention, such as Figures 2 to 10 As shown, the molding equipment includes a frame 1, a light-transmitting cover 4, a heating component 5, and a mold component 6;

[0048] The frame 1 is provided with a lower flange 2, and a lower flange hole 21 is provided through the lower flange 2;

[0049] The light-transmitting cover 4 is movably disposed on one side of the lower flange 2. A forming cavity 411 is formed inside the light-transmitting cover 4. A lower opening 412 is formed at the end of the light-transmitting cover 4 facing the lower flange 2. An upper opening 421 is formed at the end of the light-transmitting cover 4 away from the lower flange 2. The light-transmitting cover 4 can reciprocate relative to the frame 1 and can be moved to a sealing position where the periphery of the lower opening 412 is sealed and connected to the lower flange 2.

[0050] Heating assembly 5 includes a heating lamp 51, which is disposed on the outer side of the periphery of the light-transmitting cover 4; and

[0051] The mold assembly 6 includes an upper mold 61, a lower mold 62, and a drive component 63. The upper mold 61 is fixed to the frame 1 and passes through an upper opening 421. The processing end of the upper mold 61 is located inside the forming cavity 411. The peripheral wall of the upper mold 61 is sealed to the peripheral wall of the upper opening 421, and the peripheral wall of the upper mold 61 is slidably disposed on the peripheral wall of the upper opening 421. The lower mold 62 passes through a lower flange hole 21 and is sealed to the peripheral wall of the lower flange hole 21, and the peripheral wall of the lower mold 62 is slidably disposed on the peripheral wall of the lower flange hole 21. The drive component 63 is drively connected to the lower mold 62 and is used to drive the processing end of the lower mold 62 to move closer to or away from the processing end of the upper mold 61.

[0052] The lower flange 2 is provided with a lower channel 22, which is connected to the vacuum channel of the first vacuum component 3. When the light-transmitting cover 4 is sealed to the lower flange 2, the lower channel 22 is connected to the forming cavity 411 to evacuate the forming cavity 411.

[0053] Specifically, the frame 1 is the supporting structure of the entire equipment. It is usually made of sturdy metal material and is used to support and fix other components, such as the light-transmitting cover 4, the heating component 5, and the mold component 6. Its specific shape can be adapted to meet actual needs.

[0054] The light-transmitting cover 4 is made of transparent materials such as polycarbonate (PC), acrylic (PMMA), glass, etc. The light-transmitting cover 4 can move linearly back and forth under the drive of power components (such as cylinders, hydraulic cylinders, motors, etc.). During the movement of the light-transmitting cover 4, the light-transmitting cover 4 can move to a position separated from the lower mold 62. At this time, the glass preform can be placed on the lower mold 62. The light-transmitting cover 4 can also move to a position sealed and connected with the lower flange 2. At this time, the sealed forming cavity 411 can be evacuated, and then the glass preform in the forming cavity 411 can be subjected to heating and molding processes.

[0055] In practice, a sealing ring can be installed on the lower flange 2, and the light-transmitting cover 4 can be placed against the sealing ring. The gap between the light-transmitting cover 4 and the lower flange 2 can be filled by the sealing ring, which can fully ensure the sealing of the connection between the light-transmitting cover 4 and the lower flange 2.

[0056] The light emitted by the heating lamp 51 can pass through the light-transmitting cover 4 and illuminate the glass blank between the upper mold 61 and the lower mold 62. In specific implementation, the heating lamp can be an infrared lamp, a tungsten filament lamp, etc., and there are no restrictions here.

[0057] Specifically, light heating is used to heat glass blanks because light can effectively and evenly irradiate the surface of the glass blank, making the heating more uniform and preventing local overheating or undercooling, which helps to improve the molding quality. At the same time, light heating can heat up quickly, improving heating efficiency and shortening heating time, which is beneficial to improving production efficiency. In addition, compared with traditional heating methods, light heating is generally more energy-efficient and does not produce waste gas, wastewater and other pollutants, thus having high environmental protection.

[0058] The upper mold 61 is fixed on the frame 1. When the light-transmitting cover 4 moves back and forth, the design of this application can allow the light-transmitting cover 4 to slide on the peripheral wall of the upper mold 61 while ensuring the sealing of the connection between the light-transmitting cover 4 and the upper mold 61. In specific implementation, a sealing ring can be set on the light-transmitting cover 4 or the upper mold 61, and the light-transmitting cover 4 contacts the upper mold 61 through the sealing ring.

[0059] Similarly, a sealing ring can also be provided between the lower mold 62 and the lower flange 2. While ensuring the sealing of the connection between the lower mold 62 and the lower flange 2, the lower mold 62 can slide relative to the lower flange 2 to adjust the gap between the lower mold 62 and the upper mold 61, thereby facilitating the extrusion of the glass blank.

[0060] In some embodiments, oil can be applied to the sealing ring. The lubrication of the oil material ensures the smooth movement of the upper mold 61 and the lower mold 62. At the same time, the oil film generated on the surface of the component can also ensure the sealing of the molding cavity 411.

[0061] The driving component 63 is used to drive the lower mold 62 to move linearly and reciprocally. In specific implementation, the driving component 63 can be a motor, cylinder or hydraulic cylinder, etc. Some transmission components, such as gears and racks, lead screws and slides, can also be adapted between the driving component 63 and the lower mold 62. There are no restrictions here.

[0062] The first vacuuming component 3 is used to create a vacuum environment. During the molding process, by extracting air and gas, bubbles and other defects can be effectively reduced. In specific implementation, the first vacuuming component 3 can be a vacuum pump, vacuum valve, vacuum pipeline system, etc.

[0063] In normal use, the lower flange 2 is located below the light-transmitting cover 4. This application provides a lower channel 22 on the lower flange 2 because gas tends to settle downwards due to gravity. Therefore, by setting the vacuum channel at the bottom, the gas can be more easily discharged along the channel by utilizing gravity.

[0064] It is understood that the molding equipment of the present invention evacuates the sealed molding cavity 411 before molding the glass preform. Under the influence of air pressure, the air between the glass preform and the mold can be extracted through the gap between the glass preform and the mold. In this way, residual air in the molded product is avoided due to the presence of air between the glass preform and the mold, which would cause product defects.

[0065] A force sensor 7 is also provided between the drive component 63 and the lower mold 62. The force sensor 7 is used to measure and monitor the pressure of the mold on the glass. The contact force and deformation between the mold and the glass can be detected in real time through the force sensor 7, so as to monitor and control the processing quality in real time.

[0066] The light-transmitting cover 4 includes a cover body 41 and an upper flange 42. The cover body 41 forms a molding cavity 411 and a lower opening 412. The upper flange 42 is located on the end of the cover body 41 facing away from the lower flange 2. The upper flange hole of the upper flange 42 is formed as an upper opening 421.

[0067] The upper flange 42 is provided with an upper channel 422, which is connected to the forming cavity 411 and is connected to the vacuum channel of the second vacuum component (not shown).

[0068] The specific implementation method of the second vacuuming component can be referred to the first vacuuming component 3, and will not be repeated here.

[0069] It is easy to understand that both the upper flange 42 and the lower flange 2 are provided with channels that connect to the corresponding vacuum channels. The two vacuuming components evacuate the molding cavity 411 from opposite sides to prevent gas from stagnating in some locations and ensure that the entire molding cavity 411 is properly vacuumed, thus avoiding negative impacts on product quality.

[0070] The upper mold 61 includes an upper shaft 611, an upper air guide plate 612, and an upper mold body 613. The upper shaft 611 is disposed through the upper opening 421. The peripheral wall of the upper shaft 611 and the peripheral wall of the upper opening 421 are sealed together, and the peripheral wall of the upper shaft 611 is slidably disposed on the peripheral wall of the upper opening 421.

[0071] The end of the upper shaft 611 located inside the molding cavity 411 is fixedly connected to one side of the upper air guide plate 612, and the other side of the upper air guide plate 612 is fixedly connected to the upper mold body 613; wherein,

[0072] The upper air guide plate 612 forms a plurality of air guide grooves 6121, each air guide groove 6121 extending from the center of the upper air guide plate 612 toward the periphery of the upper air guide plate 612. A gas flow channel 6111 is formed inside the upper shaft body 611, the gas flow channel 6111 is connected to the inert gas supply component, and the gas flow channel 6111 is connected to the plurality of air guide grooves 6121 respectively.

[0073] Specifically, the inert gas supply unit (not shown) is a device or equipment for providing inert gas (such as nitrogen (N2), argon (Ar), helium (He), etc.) to cool the molding cavity 411 after the glass preform is molded.

[0074] By introducing an upper air guide plate 612 between the upper shaft 611 and the upper mold body 613, and based on the design of multiple air guide grooves 6121 extending from the center to the periphery, this design helps to guide the flow of inert gas, allowing the inert gas to flow out from the periphery of the upper air guide plate 612 and be evenly dispersed in the molding cavity 411, thereby quickly cooling the molding cavity 411, the upper mold 61, the lower mold 62, and the glass after molding.

[0075] The lower channel 22 includes a main channel, a first sub-channel, and a second sub-channel. One end of the main channel is connected to the molding cavity 411, and the other end of the main channel is connected to the first sub-channel and the second sub-channel respectively. The first sub-channel is connected to the vacuum channel of the first vacuum component 3, while the second sub-channel is connected to the external environment. The second sub-channel is equipped with a valve body (which can be a one-way valve, a diaphragm valve, etc.). At the same time, the vacuum channel of the first vacuum component 3 is also equipped with a valve body. When nitrogen is introduced into the molding cavity 411, the valve body in the vacuum channel of the first vacuum component 3 closes, while the valve body in the second sub-channel opens. Nitrogen flows into the main channel and the first sub-channel in sequence, and finally is discharged to the external environment.

[0076] The gas flow channel 6111 includes an inner flow channel 6111a and an outer flow channel 6111b. The outer flow channel 6111b is arranged around the inner flow channel 6111a. The inner flow channel 6111a is connected to an inert gas supply component, and the outer flow channel 6111b is connected to another inert gas supply component.

[0077] The air guide groove 6121 includes multiple upper air grooves 6121a and multiple lower air grooves 6121b. The upper air grooves 6121a are formed on the side of the upper air guide plate 612 facing the upper shaft 611, and the lower air grooves 6121b are formed on the side of the upper air guide plate 612 away from the upper shaft 611. Multiple air guide holes 6122 are provided at the center of the upper air guide plate 612, and each air guide hole 6122 corresponds one-to-one with a lower air groove 6121b. The air groove 6121b extends from the corresponding air guide hole 6122 toward the periphery of the upper air guide plate 612. The lower air groove 6121b is connected to the inner flow channel 6111a through the corresponding air guide hole 6122. One end of the upper air groove 6121a is spaced apart from the air guide hole 6122, and the other end of the upper air groove 6121a extends toward the periphery of the upper air guide plate 6122. Each upper air groove 6121a is connected to the outer flow channel 6111b.

[0078] It is understandable that the inert gas in the outer flow channel 6111b can flow into the molding cavity 411 through the upper air groove 6121a, and the inert gas in the inner flow channel 6111a can flow into the lower air groove 6121b through the air guide hole 6122. Since the upper mold body 613 is installed on the bottom side of the upper air guide plate 612, when there is inert gas flowing in the lower air groove 6121b on the bottom side of the upper air guide plate 612, this inert gas can carry away the temperature on the upper mold body 613, thereby quickly cooling the upper mold body 613. In this way, by combining different flow channels with different air grooves, the purpose of quickly cooling a specific location can be achieved.

[0079] The upper shaft 611 also forms a cooling channel 6112, which surrounds the gas channel 6111 and is not connected to the gas channel 6111. The portion of the upper shaft 611 located outside the light-transmitting cover 4 forms a liquid inlet (not shown) and a liquid outlet (not shown), which are connected to the cooling channel 6112 respectively.

[0080] Specifically, the gas flowing in the cooling channel 6112 can be water, ice water, or other coolant.

[0081] It is understandable that the liquid flows in from the inlet and out from the outlet. As the liquid flows in the cooling channel 6112, it can work with the inert gas to reduce the temperature of the upper shaft 611. Since the temperature of the inert gas (such as nitrogen) is often lower than that of the liquid (such as water), the liquid in the cooling channel 6112 and the inert gas in the gas channel 6111 can exchange heat, effectively reducing the temperature of the liquid in the cooling channel 6112, which facilitates the liquid in the cooling channel 6112 to effectively cool the upper shaft 611.

[0082] Specifically, the cooling channel 6112 includes an inner coolant channel 6112a and an outer coolant channel 6112b. The inner coolant channel 6112a surrounds the outer coolant channel 6111b, and the outer coolant channel 6112b surrounds the inner coolant channel 6112a. One end of the inner coolant channel 6112a is connected to the inlet, and the other end is connected to one end of the outer coolant channel 6112b. The other end of the outer coolant channel 6112b is connected to the outlet. The liquid flows in from the inlet and, during its passage through the inner coolant channel 6112a, first exchanges heat with the peripheral wall of the outer coolant channel 6111b, reducing the temperature of the liquid in the inner coolant channel 6112a. Then, it flows into the outer coolant channel 6112b, where the outer coolant channel 6112b further reduces the temperature of the outermost peripheral wall of the upper shaft body 611.

[0083] It is worth noting that designing the cooling channel 6112 into two channels, an inner coolant channel 6112a and an outer coolant channel 6112b, can increase the liquid flow path, which is beneficial to prolong the liquid heat exchange time and improve the cooling effect on the upper shaft 611.

[0084] The lower mold 62 includes a lower shaft 621, a lower air guide plate 622, and a lower mold body 623. The lower shaft 621 is connected to the drive component 63. The lower shaft 621 passes through the lower flange hole 21. The peripheral wall of the lower shaft 621 is sealed to the peripheral wall of the lower flange hole 21, and the peripheral wall of the lower shaft 621 is slidably disposed on the peripheral wall of the lower flange hole 21.

[0085] The end of the lower shaft 621 near the upper shaft 611 is fixedly connected to one side of the lower air guide plate 622, and the other side of the lower air guide plate 622 is fixedly connected to the lower mold body 623; wherein,

[0086] The structure of the upper shaft 611 is the same as that of the lower shaft 621;

[0087] The structure of the upper air guide plate 612 is the same as that of the lower air guide plate 622.

[0088] The upper shaft 611 is also designed with inner and outer flow channels 6111b and cooling flow channels 6112. The lower air guide plate 622 is also designed with air groove structures on both sides. This design reduces the design cost of the lower shaft 621 and the lower air guide plate 622, and also helps to cool down the lower shaft 621 and the lower mold body 623 quickly.

[0089] In some embodiments, temperature sensors 8 (such as thermocouples) are also provided on the upper shaft 611 and the lower shaft 621. The temperature detection end of the temperature sensor 8 is connected to the air guide plate (upper air guide plate 612 or lower air guide plate 622). By monitoring the temperature change of the air guide plate in real time, the amount of nitrogen input can be adjusted.

[0090] The heating lamp 51 includes multiple first arc-shaped light strips 511 and multiple second arc-shaped light strips (not shown). Each first arc-shaped light strip 511 is arranged around the first side of the light-transmitting cover 4, and each second arc-shaped light strip is arranged around the second side of the light-transmitting cover 4. The multiple first arc-shaped light strips 511 are arranged sequentially along the length of the light-transmitting cover 4, and the multiple second arc-shaped light strips are arranged sequentially along the length of the light-transmitting cover 4. The first side and the second side can be opposite sides of the light-transmitting cover 4. It is easy to understand that by arranging multiple arc-shaped light strips around both sides of the light-transmitting cover 4, light can be provided to the glass blank from different directions, achieving more uniform heating of the glass blank.

[0091] The heating assembly 5 also includes a furnace 52. An upper through-hole 521 and a lower through-hole 522 are formed at opposite ends of the furnace 52, respectively. The upper through-hole 521 and the lower through-hole 522 are connected. A light-transmitting cover 4 is disposed through the upper through-hole 521 and the lower through-hole 522. The portion of the light-transmitting cover 4 located between the upper through-hole 521 and the lower through-hole 522 cooperates with the furnace 52 to form a heating cavity 523. Each first arc-shaped light strip 511 and each second arc-shaped light strip are disposed within the heating cavity 523. It is easy to understand that the heating cavity 523 is a closed space used to accommodate the first arc-shaped light strip 511 and the second arc-shaped light strip, etc., for heating lamps 51. Due to the enclosure of the furnace 52, light can be prevented from shining on any location other than the light-transmitting cover 4.

[0092] The furnace wall of the hot furnace 52, located within the heating chamber 523, has multiple first arc-shaped grooves 524 and multiple second arc-shaped grooves (not shown in the figure). Each of the multiple first arc-shaped grooves 524 corresponds to a multiple of first arc-shaped light strips 511, and the first arc-shaped light strips 511 are installed in the corresponding first arc-shaped grooves 524. Each of the multiple second arc-shaped grooves corresponds to a multiple of second arc-shaped light strips, and the second arc-shaped light strips are installed in the corresponding second arc-shaped grooves. The opening of each first arc-shaped groove 524 faces the light-transmitting cover 4, and the wall of each first arc-shaped groove 524 is reflective. The opening of each second arc-shaped groove faces the light-transmitting cover 4, and the wall of each second arc-shaped groove is reflective.

[0093] By designing the walls of the first arc-shaped groove 524 and the second arc-shaped groove to reflect light, when light shines on the corresponding groove wall, the light is not absorbed by the groove wall, but after multiple reflections by the groove wall, it finally shines on the light-transmitting cover 4, which greatly improves the utilization rate of light.

[0094] In actual implementation, a reflective coating can be formed on the wall of the first arc-shaped groove 524 and the wall of the second arc-shaped groove, or the furnace 52 can be made of a material with reflective effect.

[0095] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.

Claims

1. A molding device, characterized in that, include: A frame (1) is provided with a lower flange (2), and a lower flange hole (21) is provided through the lower flange (2); A light-transmitting cover (4) is movably disposed on one side of the lower flange (2). A molding cavity (411) is formed inside the light-transmitting cover (4). The molding cavity (411) has a lower opening (412) at the end of the light-transmitting cover (4) facing the lower flange (2) and an upper opening (421) at the end of the light-transmitting cover (4) away from the lower flange (2). The light-transmitting cover (4) can reciprocate relative to the frame (1) and can be moved to a position where the periphery of the lower opening (412) is sealed and connected to the lower flange (2). Heating assembly (5), the heating assembly (5) including heating lamp (51), the heating lamp (51) being disposed on the outer side of the peripheral wall of the light-transmitting cover (4); and The mold assembly (6) includes an upper mold (61), a lower mold (62), and a drive component (63). The upper mold (61) is fixed to the frame (1). The upper mold (61) passes through the upper opening (421). The processing end of the upper mold (61) is located in the forming cavity (411). The peripheral wall of the upper mold (61) and the peripheral wall of the upper opening (421) are sealed together, and the peripheral wall of the upper mold (61) is openable on the peripheral wall of the upper opening (421). The lower mold (62) is slidably disposed, passing through the lower flange hole (21). The peripheral wall of the lower mold (62) is sealed to the peripheral wall of the lower flange hole (21), and the peripheral wall of the lower mold (62) is slidably disposed on the peripheral wall of the lower flange hole (21). The driving member (63) is drivenly connected to the lower mold (62), and the driving member (63) is used to drive the processing end of the lower mold (62) to approach or move away from the processing end of the upper mold (61); wherein, The lower flange (2) is provided with a lower channel (22), which is connected to the vacuum channel of the first vacuuming component (3). When the light-transmitting cover (4) is sealed to the lower flange (2), the lower channel (22) is connected to the molding cavity (411) to evacuate the molding cavity (411). The lower channel (22) includes a main channel, a first sub-channel and a second sub-channel. One end of the main channel is connected to the molding cavity (411), and the other end of the main channel is connected to the first sub-channel and the second sub-channel respectively. The first sub-channel is connected to the vacuum channel of the first vacuuming component (3), and the second sub-channel is connected to the external environment. A valve body is provided inside the second sub-channel, and a valve body is provided inside the vacuum channel of the first vacuuming component (3). The upper mold (61) includes an upper shaft (611), an upper air guide plate (612), and an upper mold body (613). The upper shaft (611) passes through the upper opening (421). The peripheral wall of the upper shaft (611) and the peripheral wall of the upper opening (421) are sealed together, and the peripheral wall of the upper shaft (611) is slidably disposed on the peripheral wall of the upper opening (421). The end of the upper shaft (611) located inside the molding cavity (411) is fixedly connected to one side of the upper air guide plate (612), and the other side of the upper air guide plate (612) is fixedly connected to the upper mold body (613); wherein, The upper air guide plate (612) forms a plurality of air guide grooves (6121), each of the air guide grooves (6121) extending from the center of the upper air guide plate (612) toward the periphery of the upper air guide plate (612). A gas flow channel (6111) is formed inside the upper shaft (611), the gas flow channel (6111) is connected to an inert gas supply component, and the gas flow channel (6111) is connected to the plurality of air guide grooves (6121) respectively. The lower mold (62) includes a lower shaft (621), a lower air guide plate (622), and a lower mold body (623). The lower shaft (621) is connected to the driving component (63) in a transmission manner. The lower shaft (621) passes through the lower flange hole (21). The peripheral wall of the lower shaft (621) and the peripheral wall of the lower flange hole (21) are sealed together. The peripheral wall of the lower shaft (621) is slidably disposed on the peripheral wall of the lower flange hole (21). The end of the lower shaft (621) near the upper shaft (611) is fixedly connected to one side of the lower air guide plate (622), and the other side of the lower air guide plate (622) is fixedly connected to the lower mold body (623); wherein, The structure of the upper shaft (611) is the same as that of the lower shaft (621); The structure of the upper air guide plate (612) is the same as that of the lower air guide plate (622).

2. The molding equipment as described in claim 1, characterized in that, The light-transmitting cover (4) includes a cover body (41) and an upper flange (42). The cover body (41) forms the molding cavity (411) and the lower opening (412). The upper flange (42) is located on the end of the cover body (41) facing away from the lower flange (2). The upper flange hole of the upper flange (42) is formed as the upper opening (421). The upper flange (42) is provided with an upper channel (422), which is connected to the forming cavity (411) and the upper channel (422) is connected to the vacuum channel of the second vacuum component.

3. The molding equipment as described in claim 1, characterized in that, The gas flow channel (6111) includes an inner flow channel (6111a) and an outer flow channel (6111b). The outer flow channel (6111b) is arranged around the inner flow channel (6111a). The inner flow channel (6111a) is connected to one of the inert gas supply components, and the outer flow channel (6111b) is connected to another inert gas supply component. The air guide groove (6121) includes multiple upper air grooves (6121a) and multiple lower air grooves (6121b). The multiple upper air grooves (6121a) are formed on the side of the upper air guide plate (612) facing the upper shaft (611), and the multiple lower air grooves (6121b) are formed on the side of the upper air guide plate (612) away from the upper shaft (611). Multiple air guide holes (6122) are provided at the center of the upper air guide plate (612), and each of the multiple air guide holes (6122) corresponds one-to-one with one of the multiple lower air grooves (6121b). The lower air groove (6121b) extends from the corresponding air guide hole (6122) toward the periphery of the upper air guide plate (612). The lower air groove (6121b) is connected to the inner flow channel (6111a) through the corresponding air guide hole (6122). One end of the upper air groove (6121a) is spaced apart from the air guide hole (6122), and the other end of the upper air groove (6121a) extends toward the periphery of the upper air guide plate (6122). Each upper air groove (6121a) is connected to the outer flow channel (6111b).

4. The molding equipment as described in claim 1, characterized in that, The upper shaft (611) also forms a cooling channel (6112), which surrounds the gas channel (6111) and is not connected to the gas channel (6111). The portion of the upper shaft (611) located outside the light-transmitting cover (4) forms a liquid inlet and a liquid outlet, which are respectively connected to the cooling channel (6112).

5. The molding equipment as described in claim 1, characterized in that, The heating lamp (51) includes a plurality of first arc-shaped light strips (511) and a plurality of second arc-shaped light strips. Each first arc-shaped light strip (511) is arranged around the light-transmitting cover (4) on the first side, and each second arc-shaped light strip is arranged around the light-transmitting cover (4) on the second side. The plurality of first arc-shaped light strips (511) are arranged sequentially in the length direction of the light-transmitting cover (4), and the plurality of second arc-shaped light strips are arranged sequentially in the length direction of the light-transmitting cover (4).

6. The molding equipment as described in claim 5, characterized in that, The heating assembly (5) further includes a furnace (52), with an upper through hole (521) and a lower through hole (522) formed at two opposite ends of the furnace (52), the upper through hole (521) and the lower through hole (522) being connected, the light-transmitting cover (4) being disposed through the upper through hole (521) and the lower through hole (522), and the portion of the light-transmitting cover (4) located between the upper through hole (521) and the lower through hole (522) cooperating with the furnace (52) to form a heating cavity (523), each of the first arc-shaped light strips (511) and each of the second arc-shaped light strips being disposed in the heating cavity (523).

7. The molding equipment as described in claim 6, characterized in that, The furnace wall located in the heating chamber (523) of the hot furnace (52) has a plurality of first arc-shaped grooves (524) and a plurality of second arc-shaped grooves. The plurality of first arc-shaped grooves (524) correspond one-to-one with the plurality of first arc-shaped light strips (511). The first arc-shaped light strips (511) are installed in the corresponding first arc-shaped grooves (524). The plurality of second arc-shaped grooves correspond one-to-one with the plurality of second arc-shaped light strips. The second arc-shaped light strips are installed in the corresponding second arc-shaped grooves. The opening of each of the first arc-shaped grooves (524) faces the light-transmitting cover (4), and the groove wall of each of the first arc-shaped grooves (524) can be set to reflect light; The opening of each of the second arc-shaped grooves faces the light-transmitting cover (4), and the groove wall of each of the second arc-shaped grooves can be set to reflect light.

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