Equipment and process for preparing thermoplastic optical element

Abstract

The invention discloses equipment and a process for preparing a thermoplastic optical element, and relates to the technical field of optical element preparation. Comprising a treatment barrel and a zoning treatment assembly installed in the treatment barrel and used for conducting zoning pretreatment on raw materials, and a hot melting tank is installed at the bottom of the treatment barrel. The heat supply assembly is matched with the adjusting assembly and the zoning treatment assembly, corresponding heat supply can be conducted on different areas, gradient heating can be conducted on raw materials through circulating adjustment of the adjusting assembly, and materials with different boiling points or different heat sensitivities can be subjected to gradient heating conveniently. The probability that the yield is reduced and the cost is increased due to improper raw material treatment is reduced, inert gas can be selected to be supplied into a bearing block through an arranged gas supply assembly, oxidation and side reactions are limited through the action of the inert gas, oxidation, hydrolysis and other reactions between oxygen in air and moisture and materials are restrained, microstructure defects are reduced, and the yield is improved. Therefore, internal stress is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of optical element preparation, in particular to a device and process for preparing thermoplastic optical elements. BACKGROUND

[0002] Thermoplastic optical elements use thermoplastic polymers as the base material, which are softened by heating, shaped, and cured, and have good processability and repeatability, and are commonly used in the fields of lenses, thin film optics, microlens arrays, and optical modules. The key is to achieve high optical quality (low surface roughness, low dispersion, stable wavefront), excellent mechanical and thermal properties (temperature resistance, impact resistance, dimensional stability), and good compatibility with thin film coating.

[0003] Patent No. CN113811433A discloses a method for manufacturing a transmission type optical element using a thermoplastic resin film. The method includes: a hot pressing process, in which at least one pair of flat plate molds is used to hot press the thermoplastic resin film to obtain a hot pressed film; a mold cooling process, in which the pair of flat plate molds is cooled to a temperature below the glass transition temperature (Tgr) of the thermoplastic resin film, and the hot pressed film is cooled; and a demolding process, in which when the hot pressed film is demolded from the pair of flat plate molds after the mold cooling process, the hot pressed film is subjected to tension while being demolded, and a molded film containing multiple transmission type optical elements is obtained.

[0004] In the preparation process of thermoplastic optical elements, the raw materials need to be pretreated. The existing technology has drawbacks in water management, initial stress control, and thermal gradient adjustment, which can cause residual moisture and ineffective elimination of initial stress in the material before molding, resulting in a large number of bubbles, poor adhesion, and local stress concentration after entering the molding stage. In the pretreatment process of raw materials, for high-boiling or highly heat-sensitive materials, it is difficult to achieve the best moisture evaporation or degradation conditions at a uniform temperature, resulting in increased moisture residue, gas inclusion, and surface defects; for materials with low thermal stability, uniform high temperature can easily cause decomposition and degradation products, affecting optical performance and dimensional stability; for materials with low thermal requirements, excessive drying and rapid viscosity changes may occur under high temperature conditions, resulting in fluctuations in optical and mechanical properties between batches. A uniform temperature ignores the temperature adaptability differences between raw materials, which can easily cause incomplete moisture removal, increased risk of material degradation, fluctuations in viscosity and mechanical properties, and a decrease in yield and an increase in cost. Therefore, the present application is proposed. SUMMARY

[0005] The present application aims to provide a device and process for preparing thermoplastic optical elements to solve the problems raised in the background art.

[0006] To achieve the above object, the present application provides the following technical scheme: an equipment for preparing thermoplastic optical elements, comprising a processing barrel and a partition processing assembly installed inside the processing barrel for partition pre-treatment of raw materials, a hot melting tank is installed at the bottom of the processing barrel, a tank cover is installed on the top outer wall of the hot melting tank, a transfer mechanism is installed between the processing barrel and the tank cover, the transfer mechanism comprises a mixing assembly for improving the hot melting effect and an adjusting assembly for driving the partition processing assembly to operate, a plurality of auxiliary mechanisms are installed on the outer wall of the tank cover, the auxiliary mechanisms comprise a heat supply assembly and a gas supply assembly, partition heating of the partition processing assembly is completed through the plurality of heat supply assemblies, the partition processing assembly comprises a plurality of bearing blocks installed on the inner wall of the bottom of the processing barrel, the inside of the bearing block is a hollow structure, a bend pipe is installed between the inner walls of the two ends of the bearing block, a plurality of copper columns are installed on the outer wall of the bend pipe, a top plate is installed on the top outer wall of the processing barrel, a plurality of vertical grooves corresponding to the bearing blocks are formed on the top outer wall of the top plate and the bottom outer wall of the processing barrel, a rotatable bottom plate is installed on the bottom outer wall of the processing barrel, a collecting hopper is installed on the bottom outer wall of the bottom plate, a vertical pipe is installed on the top outer wall of the tank cover, the collecting hopper is inserted into the vertical pipe, a through groove adapted to the vertical groove is formed on the outer wall of the bottom plate, the bottom plate is rotated by the adjusting assembly, the heat supply assembly is connected with the outer wall of the bearing block, and the gas supply assembly is connected with the inner wall of the bearing block, and a discharging mechanism for forming and discharging is installed at the bottom of the hot melting tank.

[0007] Further, the heat supply assembly comprises a heating tank installed on the outer wall of the tank cover, an annular groove is formed on the outer wall of the processing barrel, pipe grooves are formed on both ends of the inner wall of the annular groove corresponding to the bearing blocks, first fixed pipes located in the pipe grooves are installed on both ends of the outer wall of the bearing block, first fixed pipes are installed on both ends of the outer wall of the heating tank, valves and pump bodies are installed on the inlet pipe and the outlet pipe, and change assemblies for adjusting the heat supply condition are installed in the inlet pipe and the outlet pipe.

[0008] Further, the change assembly comprises side grooves formed on the outer walls of the inlet pipe and the outlet pipe, air bags are installed in the side grooves, movable rings connected with the air bags are inserted into the side grooves, movable blocks adapted to the first fixed pipes are installed on the outer wall of the movable ring, the first fixed pipes are inserted into the movable blocks, connecting columns are installed on the bottom outer walls of the inlet pipe and the outlet pipe, air boxes are installed on the bottom outer walls of the connecting columns, air pumps are installed on the air boxes, and guide pipes connected with the air bags in the inlet pipe and the outlet pipe are embedded and installed in the air boxes.

[0009] Further, the gas supply assembly comprises a gas guide pipe embedded and installed in the inlet pipe, a folding pipe is installed at the pipe opening of the gas guide pipe in the inlet pipe, a horizontal pipe is installed on the outer wall of the folding pipe, a connecting plate is installed between the outer wall of the horizontal pipe and the inner wall of the movable ring, and a second fixed pipe located in the first fixed pipe is installed on the inner wall of the bearing block, the second fixed pipe is inserted into the horizontal pipe.

[0010] Further, the mixing assembly comprises a gear wheel driven by a driving motor mounted on the outer wall of the top of the tank cover, a tooth ring engaged with the gear wheel is mounted on the outer wall of the vertical pipe, a first annular groove and a second annular groove are respectively formed in the outer wall and the inner wall of the vertical pipe, a first annular block with an electromagnet embedded in the inner wall is placed in the first annular groove, a second annular block with a magnetic metal embedded in the outer wall is placed in the second annular groove, the first annular block is connected with the second annular block through magnetic attraction, the inner wall of both ends of the second annular block is provided with a connecting block, a vertical rod is mounted between the connecting blocks, a plurality of first stirring rods are mounted on the outer wall of the vertical rod in the hot melt tank, a first circular plate is mounted on the inner wall of the vertical pipe, the first circular plate is sleeved on the outer wall of the vertical rod, a second circular plate is mounted on the outer wall of the vertical rod and abuts against the first circular plate, a plurality of hole grooves are formed in the top outer wall of the first circular plate and the second circular plate, and a plurality of second stirring rods are mounted on the outer wall of the vertical rod at the top of the first circular plate.

[0011] Further, the adjusting assembly comprises a convex groove formed in the outer wall of the bottom of the bottom plate, an electric push rod is embedded in the vertical rod, a convex block adapted to the convex groove is mounted at one end of the piston rod of the electric push rod, and the rotation of the bottom plate is completed by inserting the convex block into the convex groove.

[0012] Further, a discharge pipe is mounted on the outer wall of the bottom of the hot melt tank, a discharge valve is mounted on the discharge pipe, a heating assembly is embedded in the inner wall of the hot melt tank, and the discharging assembly comprises a forming block mounted on the discharge pipe, a material collecting groove is formed in the top outer wall of the forming block, a forming groove in communication with the material collecting groove is formed in the bottom outer wall of the forming block, the inner wall and the outer wall of the forming block are in a hollow structure, a top pipe and a bottom pipe are respectively mounted on the top outer wall and the bottom outer wall of the forming block, a bottom column is mounted on the outer wall of the bottom of the hot melt tank, a hydraulic cylinder is embedded in the bottom column, a circular block is mounted at one end of the piston rod of the hydraulic cylinder, a rotary motor is mounted in the circular block, and a cutter is mounted at one end of the piston rod of the rotary motor.

[0013] A process for preparing a thermoplastic optical element uses the above-mentioned device for preparing a thermoplastic optical element, and the process comprises: obtaining a preparation raw material, obtaining a pretreatment temperature based on the preparation raw material, adjusting the heating intensity of the heating assembly based on the pretreatment temperature, determining whether the preparation raw material needs gradient heating, completing the gradient heating of the preparation raw material through the rotation of the bottom plate by the adjusting assembly when the gradient heating is needed, completing the gas supply by supplying the inert gas into the carrier block through the gas supply assembly, completing the rotation of the bottom plate by the adjusting assembly after the pretreatment is completed, and completing the preparation of the optical element by discharging the preparation raw material into the hot melt tank, melting the preparation raw material by the heating assembly through the mixing assembly, and completing the preparation of the optical element by forming and discharging through the discharging mechanism after the melting is completed.

[0014] Compared with the prior art, the process has the following beneficial effects:

[0015] The device and process for preparing thermoplastic optical elements can complete corresponding heating of different regions through the heating assembly cooperating with the adjusting assembly and the partition processing assembly, and the heating process can be combined, a single heating assembly can maintain a single temperature for heating in advance, the adjusting assembly cooperates with the partition processing assembly to adjust the object of the heating assembly to complete the adjusting partition heating, and through the cycle adjustment of the adjusting assembly, the raw material can be gradient heated, which is convenient for different boiling points or different thermal sensitivity materials, reduces the probability of yield reduction and cost increase caused by improper raw material processing, through the setting of the gas supply assembly, inert gas can be selected to be supplied into the bearing block, through the action of inert gas, the oxidation and side reaction are limited, the oxidation and hydrolysis reaction between oxygen and moisture in the air and the material are inhibited, the generation of microstructure defects is reduced, and the internal stress is reduced.

[0016] At the same time, the gas is preheated and warmed by the import pipe and transported to the inside of the bearing block, which can improve the processing efficiency of the raw material in the bearing block, the connecting plate is provided, so that the horizontal pipe moves with the moving ring, and the horizontal pipe can be connected and disconnected with the moving block, a sealing gasket can be installed at the connection to improve the sealing of the connection, and the first stirring rod can be used to stir the raw material in the hot melting tank through the rotation of the vertical rod, so that the mixing efficiency and the hot melting effect are improved, and the second stirring rod can be used to crush the raw material on the top of the first circular plate through the rotation of the second stirring rod, so that the raw material can be discharged through the holes and grooves on the first circular plate and the second circular plate, and in actual use, the raw material in the hot melting tank can be stirred in stages, and after stirring, the holes and grooves on the first circular plate and the second circular plate are adjusted to be not communicated, so that the heat generation of the hot melting tank is reduced, and the hot melting cost is reduced.

[0017] At the same time, the convex block is lifted to be inserted into the convex groove, and the vertical rod is rotated to drive the bottom plate to rotate, thereby completing the discharging of the raw material in different bearing blocks, and the processing barrel has a vertical groove at the top without placing a bearing block, so that the raw material that does not need to be pretreated can be directly put in or the exhaust can be performed during melting to reduce the pressure in the hot melting tank, and the gas can be transported into the hot melting tank through the horizontal pipe in the import pipe to supply the gas into the hot melting tank according to the use requirement, thereby improving the hot melting efficiency, and the thickness of the cut object can be adjusted through the action of the hydraulic cylinder, thereby being suitable for different preparation requirements. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0019] Figure 2 It is a schematic diagram of the external structure of the processing barrel of the present application;

[0020] Figure 3The processing barrel and hot melting tank of the present application are shown in the sectional structure schematic diagram;

[0021] Figure 4 The hot melting tank of the present application is shown in the sectional structure schematic diagram;

[0022] Figure 5 The vertical pipe of the present application is shown in the sectional structure schematic diagram;

[0023] Figure 6 The bottom structure of the present application is shown in the bottom structure schematic diagram;

[0024] Figure 7 The heating tank structure of the present application is shown in the schematic diagram;

[0025] Figure 8 The schematic diagram of the internal structure of the present application is shown in the schematic diagram of the internal structure of the present application;

[0026] Figure 9 The schematic diagram of the partial import pipe sectional structure of the present application is shown in the schematic diagram of the partial import pipe sectional structure of the present application;

[0027] Figure 10 The schematic diagram of the present application is shown in the schematic diagram of the present application.

[0028] In the figure: 1, processing barrel; 2, hot melting tank; 3, discharging mechanism; 301, bottom column; 302, round block; 303, cutter; 304, forming block; 305, material collecting groove; 306, forming groove; 4, tank cover; 5, transfer mechanism; 501, gear; 502, tooth ring; 503, vertical rod; 504, protruding block; 505, first stirring rod; 506, second stirring rod; 507, first round plate; 508, second round plate; 509, first annular block; 510, second annular block; 511, protruding groove; 6, auxiliary mechanism; 601, heating tank; 602, import pipe; 603, discharge pipe; 604, gas box; 605, gas guide pipe; 606, gas bag; 607, moving block; 608, first fixed pipe; 609, second fixed pipe; 610, moving ring; 611, transverse pipe; 612, folding pipe; 7, beating air pump; 8, vertical pipe; 9, annular groove; 10, bearing block; 11, bottom plate; 12, concentrating hopper; 13, elbow pipe; 14, copper column. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] The application field of the thermoplastic optical element includes lenses, optical films, microstructure lens arrays, optical element modules, display / touch optical, laser system windows, etc. In the process of preparing the thermoplastic optical element, a device for preparing the thermoplastic optical element needs to be used. The device for preparing the thermoplastic optical element provided in the application is specially used for the preparation of the thermoplastic optical element with the partitioned raw material. In the process of preparing the thermoplastic optical element by using the device, the components that need to be powered, supplied with liquid and supplied with gas in the device are provided in advance to ensure the normal operation of the device.

[0031] As shown in Figures 1-10 The application provides a technical solution: a device for preparing a thermoplastic optical element, comprising a treatment barrel 1 and a partitioned treatment assembly installed in the inside of the treatment barrel 1 for partitioned pretreatment of raw materials. The bottom of the treatment barrel 1 is provided with a hot melting tank 2. The top outer wall of the hot melting tank 2 is provided with a tank cover 4. The treatment barrel 1 and the tank cover 4 are provided with a transfer mechanism 5. The transfer mechanism 5 comprises a mixing assembly for improving the hot melting effect and an adjusting assembly for driving the partitioned treatment assembly to operate. The outer wall of the tank cover 4 is provided with a plurality of auxiliary mechanisms 6. The auxiliary mechanisms 6 comprise a heat supply assembly and a gas supply assembly. The partitioned treatment assembly is partitioned and heated by the heat supply assembly. The partitioned treatment assembly comprises a plurality of bearing blocks 10 installed on the inner wall of the bottom of the treatment barrel 1. The inside of the bearing block 10 is a hollow structure. The two end inner walls of the bearing block 10 are provided with a bend pipe 13. The outer wall of the bend pipe 13 is provided with a plurality of copper columns 14. The top outer wall of the top plate and the bottom outer wall of the treatment barrel 1 are both provided with a plurality of vertical grooves corresponding to the bearing blocks 10. The bottom outer wall of the treatment barrel 1 is provided with a rotatable bottom plate 11. The bottom outer wall of the bottom plate 11 is provided with a collecting hopper 12. The top outer wall of the tank cover 4 is provided with a vertical pipe 8. The collecting hopper 12 is inserted into the vertical pipe 8. The outer wall of the bottom plate 11 is provided with a through groove matched with the vertical groove. The bottom plate 11 is rotated by the adjusting assembly. The heat supply assembly is connected with the outer wall of the bearing block 10. The gas supply assembly is connected with the inner wall of the bearing block 10. The bottom of the hot melting tank 2 is provided with a discharge mechanism 3 for forming and discharging materials.

[0032] It should be noted that when preparing the thermoplastic optical element, the raw material to be pretreated is placed in the bearing block 10, the partition accommodation effect is provided through the bearing block 10, so as to facilitate the partition processing, and the corresponding heating is completed for different regions through the heating assembly cooperating with the adjusting assembly and the partition processing assembly. The heating process can be combined, a single heating assembly can maintain a single temperature for heating in advance, the adjusting assembly cooperates with the partition processing assembly to adjust the object of the heating assembly to complete the adjustment of the partition heating, and the adjusting assembly is cycled to adjust. The raw material can be gradient heated, which is convenient for different boiling points or different thermal sensitivity materials, reduces the probability of yield decline and cost increase caused by improper treatment of the raw material, reduces the moisture of the raw material in the bearing block 10 through continuous heating, and selects inert gas into the bearing block 10 through the gas supply assembly. The inert gas can limit oxidation and side reactions through the action of inert gas (such as nitrogen, helium), which can inhibit the oxidation, hydrolysis and other reactions between oxygen and moisture in the air and the material, reduce the generation of microstructure defects, thereby reducing the generation of internal stress. Inert gas helps to form a relatively stable convection and mass transfer environment, alleviates the local volume change and viscosity gradient caused by the rapid discharge of moisture and volatile impurities, and reduces the processing stress caused by local stress concentration. If the residual gas is rapidly discharged in the material, bubbles or cavitation phenomena may occur, causing stress concentration and surface defects. Inert environment helps to reduce the probability of such defects, inert gas often accompanies a more stable environment, which helps to reduce thermal stress by cooperating with appropriate heating / cooling rate, thereby reducing thermal stress. In the specific use process, the inert gas suitable for the raw material needs to be selected, and the gas required by the actual use demand can also be delivered to improve the pretreatment effect and the subsequent hot melting effect. The bend pipe 13 cooperates with the copper column 14 to increase the contact area between the raw material and the heat source, thereby improving the processing effect. The plug is installed in the vertical groove on the top plate to improve the sealing performance. The outer walls of both ends of the processing barrel 1 and the hot melting tank 2 are connected with the bearing column, and the bottom of the discharge mechanism 3 is provided with a recovery box for collecting the prepared elements.

[0033] As shown in Figure 2 , Figure 7 and Figure 9 , the heating assembly includes a heating tank 601 installed on the outer wall of the tank cover 4. The outer wall of the processing barrel 1 is provided with an annular groove 9, and the inner wall of the annular groove 9 is provided with a pipe groove at both ends corresponding to the bearing block 10. The outer wall of both ends of the bearing block 10 is provided with a first fixed pipe 608 located in the pipe groove. The outer wall of both ends of the heating tank 601 is provided with a first fixed pipe 608. Valves and pump bodies are installed on the inlet pipe 602 and the outlet pipe 603. The inlet pipe 602 and the outlet pipe 603 are provided with change assemblies for adjusting the heating condition.

[0034] It should be noted that the heating tank 601 is installed with a heating source that can maintain a directional heating temperature, and the specific heating source can be selected according to actual use requirements, including but not limited to an electric heating wire and the like. The heating medium in the heating tank 601 includes but is not limited to a liquid and a gas, and is selected according to actual use requirements. By setting the change assembly, the connection of the inlet pipe 602 and the outlet pipe 603 with the first fixed pipe 608 can be adjusted, so as to replace different first fixed pipes 608, that is, to complete the partition corresponding heating. The heating tank 601, the first fixed pipe 608, the hollow structure of the bearing block 10, and the inlet pipe 602 and the outlet pipe 603 form a heating medium circulation loop, which improves the heating effect and reduces the heating cost. The heating tank 601 is installed with a pipe opening through which the heating medium can be added and discharged.

[0035] As shown in Figure 2 , Figure 7 and Figure 9 , the change assembly includes a side groove opened on the outer wall of the inlet pipe 602 and the outlet pipe 603. The side groove is installed with an air bag 606. The side groove is also inserted with a moving ring 610 connected with the air bag 606. The outer wall of the moving ring 610 is installed with a moving block 607 matched with the first fixed pipe 608. The first fixed pipe 608 is inserted into the moving block 607. The bottom outer wall of the inlet pipe 602 and the outlet pipe 603 is installed with a connecting column. The bottom outer wall of the connecting column is installed with an air box 604. The air box 604 is installed with a pumping air pump 7. The air box 604 is embeddedly installed with a guide pipe connected with the air bag 606 in the inlet pipe 602 and the outlet pipe 603.

[0036] It should be noted that when the change assembly needs to be used, the expansion degree of the air bag 606 can be adjusted by starting the pumping air pump 7. By expanding the air bag 606 to the maximum, the moving block 607 can be sleeved on the first fixed pipe 608 when the first fixed pipe 608 corresponds to the moving block 607. Conversely, the connection of the first fixed pipe 608 and the moving block 607 can be cancelled. In the use process, an air valve can be installed on the guide pipe to reduce the working time of the pumping air pump 7.

[0037] As shown in Figure 7 and Figure 9 , the air supply assembly includes a guide air pipe 605 embeddedly installed in the inlet pipe 602. The guide air pipe 605 is installed with a folding pipe 612 at the pipe opening in the inlet pipe 602. The outer wall of the folding pipe 612 is installed with a horizontal pipe 611. The connecting plate is installed between the outer wall of the horizontal pipe 611 and the inner wall of the moving ring 610. The inner wall of the bearing block 10 is installed with a second fixed pipe 609 in which a gas inlet pipe opening is located. The second fixed pipe 609 is inserted into the horizontal pipe 611.

[0038] It should be noted that when the gas supply assembly is needed, the air inlet pipe of the air guide pipe 605 is connected with the pipeline providing the gas source, and the gas is transported to the inside of the carrier block 10 through the air guide pipe 605, the folding pipe 612, the horizontal pipe 611, and the second fixed pipe 609. When the gas is transported, the gas is preheated and transported to the inside of the carrier block 10 through the air inlet pipe 602, which can improve the processing efficiency of the raw materials in the carrier block 10. The connecting plate is arranged, so that the horizontal pipe 611 moves with the moving ring 610, that is, the horizontal pipe 611 moves with the moving block 607 to disconnect and form a connection. The sealing gasket can be installed at the connection to improve the sealing performance of the connection.

[0039] As shown in Figure 4 and Figure 5 , the mixing assembly includes a gear 501 driven by a driving motor installed on the top outer wall of the tank cover 4. A tooth ring 502 engaged with the gear 501 is installed on the outer wall of the vertical pipe 8. A first ring groove and a second ring groove are respectively formed in the outer wall and the inner wall of the vertical pipe 8. A first annular block 509 with an electromagnet embedded in the inner wall is placed in the first ring groove. A second annular block 510 with a magnetically attracted metal embedded in the outer wall is placed in the second ring groove. The first annular block 509 is connected to the second annular block 510 by magnetic attraction. The two ends of the second annular block 510 are both provided with a connecting block. A vertical rod 503 is installed between the connecting blocks. A plurality of first stirring rods 505 are installed on the outer wall of the vertical rod 503 inside the hot melt tank 2. A first circular plate 507 is installed on the inner wall of the vertical pipe 8. The first circular plate 507 is sleeved on the outer wall of the vertical rod 503. A second circular plate 508 is installed on the outer wall of the vertical rod 503 and abuts against the first circular plate 507. A plurality of hole grooves are formed in the top outer wall of the first circular plate 507 and the second circular plate 508. A plurality of second stirring rods 506 are installed on the outer wall of the vertical rod 503 at the top of the first circular plate 507.

[0040] It should be noted that the driving motor is started to drive the gear 501 to rotate, thereby driving the tooth ring 502 to rotate. The rotation of the tooth ring 502 drives the first annular block 509 to rotate. The first annular block 509 and the vertical rod 503 are driven to rotate through the magnetic attraction between the first annular block 509 and the second annular block 510. The first stirring rods 505 are driven to stir the raw materials in the hot melt tank 2 through the rotation of the vertical rod 503, thereby improving the mixing efficiency and the hot melting effect. The second stirring rods 506 are driven to crush the raw materials on the top of the first circular plate 507 through the rotation of the second stirring rods 506. The hole grooves in the first circular plate 507 and the second circular plate 508 are communicated, thereby facilitating the discharging of the raw materials. In actual use, the raw materials in the hot melt tank 2 can be stirred in stages. After stirring, the hole grooves in the first circular plate 507 and the second circular plate 508 are adjusted to be staggered, thereby reducing the heat generation of the hot melt tank 2 and the hot melting cost.

[0041] As shown in Figure 4 and Figure 6 , the adjusting assembly comprises a convex groove 511 opened on the bottom outer wall of the bottom plate 11, an electric push rod is embedded and installed in the vertical rod 503, the piston rod of the electric push rod is installed with a convex block 504 matched with the convex groove 511, and the rotation of the bottom plate 11 is completed by inserting the convex block 504 into the convex groove 511.

[0042] It should be noted that when the adjusting assembly is needed, the convex block 504 is lifted by the electric push rod to be inserted into the convex groove 511, at this time the vertical rod 503 rotates, that is, the bottom plate 11 rotates, thereby completing the discharging of the raw materials in different bearing blocks 10, and the top of the processing barrel 1 is not placed in the vertical groove, that is, the raw materials without pretreatment can be directly put in or the exhaust can be carried out during melting to reduce the pressure in the hot melting tank 2, and the gas can also be transported to the hot melting tank 2 through the horizontal pipe 611 in the inlet pipe 602, so as to supply gas to the hot melting tank 2 according to the use requirement, improve the hot melting efficiency.

[0043] As shown in Figure 2 and Figure 10 , the bottom outer wall of the hot melting tank 2 is installed with a discharge pipe, the discharge pipe is installed with a discharge valve, the inner wall of the hot melting tank 2 is embedded and installed with a heating assembly, the discharging assembly comprises a forming block 304 installed on the discharge pipe, the top outer wall of the forming block 304 is opened with a material collecting groove 305, the bottom outer wall of the forming block 304 is opened with a forming groove 306 communicated with the material collecting groove 305, the inner wall and the outer wall of the forming block 304 are hollow structure, the top outer wall and the bottom outer wall of the forming block 304 are respectively installed with a top pipe and a bottom pipe, the bottom outer wall of the hot melting tank 2 is installed with a bottom column 301, the bottom column 301 is embedded and installed with a hydraulic cylinder, the piston rod of the hydraulic cylinder is installed with a round block 302, the round block 302 is installed with a rotary motor, and the piston rod of the rotary motor is installed with a cutter 303.

[0044] It should be noted that the heating assembly can be selected according to actual use requirements, including but not limited to a heating plate or an infrared radiation heating piece, etc., the role of the material collecting groove 305 is to concentrate the raw materials in the discharge pipe, which is consistent with the role of the concentrating bucket 12, through the material collecting groove 305, the raw materials are concentrated in the forming groove 306 for cooling and forming, and then the formed object is cut off through the cooperation of the rotating motor and the cutter 303, and then the cut object is polished, polished or other processed according to actual preparation requirements, so as to complete the preparation of the optical element. Through the action of the hydraulic cylinder, the thickness of the cut object can be adjusted, which is convenient for different preparation requirements. Through the setting of the top pipe and the bottom pipe, the cooling liquid circulation loop provided by the outside can be connected, so as to cool and form the raw materials in the forming groove 306. At the same time, temperature sensors can be installed in the bearing block 10, the heating tank 601 and the hot melting tank 2, so as to monitor the temperature and make corresponding adjustment.

[0045] A process for preparing a thermoplastic optical element, the process comprising: obtaining a preparation raw material, obtaining a pretreatment temperature based on the preparation raw material, adjusting the heating intensity of the heating assembly based on the pretreatment temperature, determining whether the preparation raw material needs gradient heating, when the preparation raw material needs gradient heating, completing the gradient heating of the preparation raw material through the cooperation of the adjusting assembly and the rotation of the bottom plate 11, completing the gas supply into the bearing block 10 through the gas supply assembly to complete the gas supply, after the pretreatment is completed, completing the lowering of the preparation raw material into the hot melting tank 2 through the cooperation of the adjusting assembly and the rotation of the bottom plate 11, completing the hot melting of the preparation raw material through the cooperation of the mixing assembly and the heating assembly, and completing the preparation of the optical element through the forming and discharging of the discharging mechanism 3 after the hot melting is completed.

[0046] It should be noted that the preparation raw material is determined according to the preparation requirements, the pretreatment temperature is the most suitable treatment temperature of the preparation raw material, which is usually a temperature range, the process of adjusting the heating intensity of the heating assembly based on the pretreatment temperature, that is, according to the temperature requirements of different raw materials, the corresponding temperature of different bearing blocks 10 is supplied through the heating assembly, the process of determining gradient heating, that is, considering the processing requirements of different raw materials, the gradient temperature of different bearing blocks 10 is supplied, and then the position of the bearing block 10 is adjusted through the adjusting assembly, so that the raw materials in the bearing block 10 can be gradient heated, and the heating tank 601 in the heating assembly does not need to be frequently adjusted, so as to improve the service life of the heating assembly.

[0047] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for preparing thermoplastic optical elements, comprising a processing barrel (1) and a partition processing assembly installed inside the processing barrel (1) for performing partition pre-processing on raw materials, characterized in that: A hot melt tank (2) is installed at the bottom of the processing barrel (1), a tank cover (4) is installed on the top outer wall of the hot melt tank (2), a transfer mechanism (5) is installed between the processing barrel (1) and the tank cover (4), the transfer mechanism (5) includes a mixing component for improving the hot melt effect and an adjustment component for driving the partition processing component to operate, a plurality of auxiliary mechanisms (6) are installed on the outer wall of the tank cover (4), the auxiliary mechanisms (6) include a heating component and an air supply component, and the partition processing component is heated by the plurality of heating components, the partition processing component includes a plurality of bearing blocks (10) installed on the inner wall of the bottom of the processing barrel (1), the interior of the bearing block (10) is a hollow structure, a bend pipe (13) is installed between the inner walls of the two ends of the bearing block (10), and the outer wall of the bend pipe (13) is provided with a plurality of bearing blocks (10) installed on the inner wall of the bottom of the processing barrel (1). A plurality of copper columns (14) are installed, a top plate is installed on the top outer wall of the processing barrel (1), a plurality of vertical slots corresponding to the bearing block (10) are opened on the top outer wall of the top plate and the bottom outer wall of the processing barrel (1), a rotatable bottom plate (11) is installed on the bottom outer wall of the processing barrel (1), a centralizing bucket (12) is installed on the bottom outer wall of the bottom plate (11), a vertical pipe (8) is installed on the top outer wall of the tank cover (4), the centralizing bucket (12) is plugged into the vertical pipe (8), a through slot adapted to the vertical slot is opened on the outer wall of the bottom plate (11), and the bottom plate (11) is driven to rotate by the adjustment component, the heat supply component is connected to the outer wall of the bearing block (10), and the gas supply component is connected to the inner wall of the bearing block (10), and the bottom of the hot melt tank (2) is installed with a discharge mechanism (3) for forming and unloading.

2. The apparatus for preparing a thermoplastic optical element according to claim 1, wherein: The heating component comprises a heating tank (601) mounted on the outer wall of the tank cover (4); an annular groove (9) is provided on the outer wall of the treatment barrel (1); pipe grooves are provided at both ends of the inner wall of the annular groove (9) corresponding to the supporting block (10); first fixed pipes (608) located in the pipe grooves are installed at both ends of the outer wall of the supporting block (10); first fixed pipes (608) are installed on both ends of the outer wall of the heating tank (601); valves and pump bodies are installed on the inlet pipe (602) and the outlet pipe (603); and changing components for adjusting the heating conditions are installed in the inlet pipe (602) and the outlet pipe (603).

3. The apparatus for preparing a thermoplastic optical element according to claim 2, wherein: The changing component includes a side groove opened on the outer wall of the inlet pipe (602) and the outlet pipe (603), an air bag (606) is installed in the side groove, a movable ring (610) connected to the air bag (606) is also inserted in the side groove, a movable block (607) adapted to the first fixed pipe (608) is installed on the outer wall of the movable ring (610), the first fixed pipe (608) is inserted in the movable block (607), connecting columns are installed on the bottom outer wall of the inlet pipe (602) and the outlet pipe (603), an air box (604) is installed on the bottom outer wall of the connecting column, a pumping air pump (7) is installed on the air box (604), and a catheter connected to the air bag (606) in the inlet pipe (602) and the outlet pipe (603) is embedded in the air box (604).

4. The apparatus for preparing a thermoplastic optical element according to claim 1, wherein: The air supply assembly comprises an air guide tube (605) embedded in the inlet tube (602); a folding tube (612) is installed at the tube opening of the air guide tube (605) located in the inlet tube (602); a transverse tube (611) is installed on the outer wall of the folding tube (612); a connecting plate is installed between the outer wall of the transverse tube (611) and the inner wall of the movable ring (610); a second fixed tube (609) with an air inlet opening located in the first fixed tube (608) is installed on the inner wall of the bearing block (10); and the second fixed tube (609) is plugged into the transverse tube (611).

5. The apparatus for preparing a thermoplastic optical element according to claim 1, wherein: The mixing assembly comprises a gear (501) mounted on the outer wall of the top of the tank cover (4) and driven by a driving motor; a gear ring (502) meshing with the gear (501) is mounted on the outer wall of the vertical tube (8); a first annular groove and a second annular groove are respectively provided on the outer wall and the inner wall of the vertical tube (8); a first annular block (509) with an electromagnet embedded in the inner wall is placed in the first annular groove; a second annular block (510) with a magnetic metal embedded in the outer wall is placed in the second annular groove; the first annular block (509) and the second annular block (510) are connected by magnetic attraction; the inner walls of both ends of the second annular block (510) are both installed with connecting blocks, and the connection A vertical rod (503) is installed between the blocks, and a plurality of first stirring rods (505) are installed on the outer wall of the vertical rod (503) located inside the hot melt tank (2). A first circular plate (507) is installed on the inner wall of the vertical tube (8), and the first circular plate (507) is sleeved on the outer wall of the vertical rod (503). A second circular plate (508) is installed on the outer wall of the vertical rod (503) and is fitted with the first circular plate (507). A plurality of holes are provided on the outer walls of the tops of the first circular plate (507) and the second circular plate (508). A plurality of second stirring rods (506) are installed on the outer wall of the vertical rod (503) at the top of the first circular plate (507).

6. The apparatus for preparing a thermoplastic optical element according to claim 1, wherein: The adjustment component includes a convex groove (511) provided on the outer wall of the bottom of the base plate (11), an electric push rod is embedded in the vertical rod (503), and a convex block (504) adapted to the convex groove (511) is installed at one end of the piston rod of the electric push rod, and the base plate (11) is driven to rotate by inserting the convex block (504) into the convex groove (511).

7. The apparatus for preparing a thermoplastic optical element according to claim 1, wherein: A discharge pipe is installed on the bottom outer wall of the hot melt tank (2), and a discharge valve is installed on the discharge pipe. A heating component is embedded in the inner wall of the hot melt tank (2). The discharge component includes a forming block (304) installed on the discharge pipe, a collecting trough (305) is provided on the top outer wall of the forming block (304), and a forming groove (306) communicating with the collecting trough (305) is provided on the bottom outer wall of the forming block (304). The inner wall and the outer wall of the forming block (304) are hollow structures. The top outer wall and the bottom outer wall of the forming block (304) are respectively installed with a top pipe and a bottom pipe. A bottom column (301) is installed on the bottom outer wall of the hot melt tank (2), and a hydraulic cylinder is embedded in the bottom column (301). A round block (302) is installed at one end of the piston rod of the hydraulic cylinder, a rotating motor is installed in the round block (302), and a cutter (303) is installed at one end of the piston rod of the rotating motor.

8. A process for preparing a thermoplastic optical element, characterized in that: A device for preparing thermoplastic optical elements according to any one of claims 1 to 7 is used, and the process includes: obtaining a preparation raw material, obtaining a pretreatment temperature based on the preparation raw material, adjusting the heating intensity of the heating component based on the pretreatment temperature, judging whether the preparation raw material needs gradient heating, when gradient heating is required, completing the gradient heating of the preparation raw material by adjusting the component in conjunction with the rotation of the base plate (11), completing the gas supply by supplying inert gas into the carrier block (10) through the gas supply component, after the pretreatment is completed, completing the lowering of the preparation raw material into the hot melt tank (2) by adjusting the component in conjunction with the rotation of the base plate (11), hot melting the preparation raw material by the mixing component in conjunction with the heating component, and completing the molding and discharge by the discharge mechanism (3) after the hot melting is completed to complete the preparation of the optical element.

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