Optical lens mold pressing device

Abstract

The invention relates to the technical field of optical lens machining, in particular to an optical lens mold pressing device which comprises a bottom mold, guide columns are fixed to the outer walls of the four corners of the top of the bottom mold, a top plate is fixed to the outer walls of the bottoms of the guide columns, the middles of the guide columns are sleeved with a top mold, guide holes are formed in the outer walls of the four corners of the top of the top mold in a penetrating mode, and the guide columns penetrate through the guide holes. A hydraulic rod is fixed to the top outer wall of the top plate, and the bottom end of a telescopic rod of the hydraulic rod is fixedly connected with the top outer wall of the top mold. Through the arrangement of the horizontal cushioning assembly and the cushioning supporting legs, in the working process of the mold pressing device, the mounting base can horizontally vibrate along a movable groove in the cushioning base, the mounting base can horizontally move more stably through the arrangement of balls at the bottom of the movable groove, and the mounting base can drive an arc elastic piece to elastically deform in the horizontal vibration process; under the action of the arc elastic pieces, the horizontal cushioning effect of the optical lens mold pressing device is achieved, and the longitudinal cushioning effect of the mold pressing device is achieved through the arrangement of the cushioning supporting legs.

Description

Technical Field

[0001] The invention relates to the technical field of optical lens processing, and in particular to an optical lens molding device. Background Art

[0002] Optical lens molding device is a key equipment for manufacturing high-precision optical lenses. Molding technology uses high temperature and high pressure to press glass or plastic materials into precision molds to directly mold optical lenses. Its core principles include: material softening: heating the material to the softening temperature to make it fluid, high-pressure molding: applying high pressure through the mold to make the material fill the mold cavity, rapid cooling: the material is quickly solidified through the cooling system to maintain the shape of the mold; the main way for existing factories to process aspheric glass lenses is: first put the glass preform into the mold, and then preheat the mold with the glass preform in a nitrogen-filled molding machine. When the glass preform reaches the set temperature and is fully preheated, the equipment applies pressure to the mold to make the glass preform into a lens shape, and finally remove the lens from the mold by cooling. Patent: CN222082663 U discloses an optical lens compression molding die, comprising an upper mold, a lower mold and a mold sleeve, the working surfaces of the upper mold and the lower mold are arranged opposite to each other, a mold ring is arranged between the working surfaces of the upper mold and the lower mold, and the upper mold, the lower mold and the mold ring are all arranged in the mold sleeve; the upper mold is embedded with an upper heat conductive block, and the lower mold is embedded with a lower heat conductive block, the thermal conductivity of the upper heat conductive block is greater than that of the upper mold, and the thermal conductivity of the lower heat conductive block is greater than that of the lower mold.

[0003] The existing mold structure technology used for optical lens molding on the market is relatively complete, but it does not have the ability to cushion shock in the horizontal direction. Long-term high-pressure work can easily lead to fatigue of horizontal mechanical parts. Traditional optical lens molds have slow cooling speeds, which affects production efficiency and uneven cooling, which can easily lead to lens deformation. Traditional molds do not have the function of cutting off and removing slag in the injection mold runner and injection mold mouth, and are prone to blockage of the blank in the mold.

[0004] In order to solve the above problems, the present invention proposes an optical lens molding device. Summary of the invention

[0005] (1) Technical issues to be resolved The purpose of the present invention is to overcome the problem that the optical lens molding mold in the prior art does not have the ability to cushion shock in the horizontal direction, and long-term high-pressure work can easily lead to fatigue of horizontal mechanical parts. The traditional optical lens mold has a slow cooling speed, which affects production efficiency and uneven cooling, which can easily lead to lens deformation. The traditional mold does not have the function of cutting off and removing slag in the injection mold runner and the injection mold mouth, and is prone to blockage of the blank in the mold. In order to meet the actual needs, an optical lens molding device is provided to solve the above-mentioned technical problems.

[0006] (2) Technical solution In order to achieve the purpose of the present invention, the technical solution adopted by the present invention is: An optical lens molding device comprises a bottom mold, guide pillars are fixed on the outer walls of the top four corners of the bottom mold, a top plate is fixed on the bottom outer wall of the guide pillar, a top mold is sleeved on the middle part of the guide pillar, guide holes are penetrated on the outer walls of the top four corners of the top mold, and the guide pillars pass through the guide holes, a hydraulic rod is fixed on the top outer wall of the top plate, and the bottom end of the hydraulic rod telescopic rod is fixedly connected to the top outer wall of the top mold, a mounting seat is fixed on the top outer wall of the bottom mold, a shock absorbing seat is arranged on the bottom outer wall of the mounting seat, a horizontal shock absorbing assembly is arranged between the mounting seat and the shock absorbing seat, a uniform cooling assembly is arranged on the outer wall of the shock absorbing seat, an injection mold flow channel is opened on the inner wall of the middle part of the top mold, and an injection mold port is penetrated on the bottom outer wall of the middle end of the injection mold flow channel, a feed pipe is penetrated and connected on the outer wall of one side of the top of the top mold, and one end of the feed pipe penetrates the interior of the injection mold flow channel, and a linkage cutting and slag removal assembly is arranged on the inner wall of the injection mold flow channel.

[0007] Preferably, the horizontal shock-absorbing component includes a movable groove opened on the top outer wall of the shock-absorbing seat, the mounting seat is placed inside the movable groove, and arc grooves are staggered and penetrated on the outer walls on both sides of the mounting seat, slots are staggered and penetrated on the outer walls on both sides of the shock-absorbing seat, arc spring pieces are inserted on the relative inner walls of the slots and the arc grooves, card-mounting grooves are distributed on the bottom inner wall of the movable groove, and balls are card-mounted inside the card-mounting grooves, and the bottom outer wall of the mounting seat is in contact with the top of the ball.

[0008] Preferably, the uniform cooling component comprises a liquid nitrogen box fixed on the outer wall of the bottom of the shock absorbing seat, a fixed n-shaped frame is fixed on the outer wall at one end of the top of the shock absorbing seat, a movable n-shaped frame is arranged on the outer wall on the other side of the top of the shock absorbing seat, movable guide wheels are fixed on the outer walls at both ends of the movable n-shaped frame, movable guide grooves are provided on the outer walls on both sides of the top of the shock absorbing seat, and the movable guide wheels are clamped in the inner part of the movable guide grooves, a telescopic airbag is covered and connected between the fixed n-shaped frame and the movable n-shaped frame, an air pump is fixed on the outer wall of one side of the liquid nitrogen box, an air suction end of the air pump is connected to an air suction pipe, and one end of the air suction pipe is connected to the movable The inside of the tank is connected to the inside of the tank, and a filter element is installed through the middle of the suction pipe, the gas delivery end of the air pump is connected through the gas delivery pipe, one end of the gas delivery pipe is connected to the inside of the liquid nitrogen box, and a one-way valve is installed at the end of the gas delivery pipe, a liquid nitrogen pipe is connected through the outer wall of one side of the liquid nitrogen box, one end of the liquid nitrogen pipe is connected to the inside of the telescopic airbag, and a pressure relief valve is installed at the end of the liquid nitrogen pipe, temperature sensors are distributed and fixed on the inner walls of both sides of the telescopic airbag, a nozzle is connected through the outer wall of the telescopic airbag on the side of the temperature sensor, and an electric control valve is installed at the end of the nozzle, and an electric control box is installed on the outer wall of one side of the liquid nitrogen box.

[0009] Preferably, the linked cutting and slag removal assembly includes a feeding screw rotatably connected to the inner walls at both ends of the injection mold runner, a gear is fixed to one end of the feeding screw shaft passing through the outside of the top mold, a rack is fixed to one side outer wall of the bottom mold, and the gear and the rack are meshingly connected, a slag discharge pipe is embedded and connected to the outer wall of the other end of the top mold, and a slag discharge valve is installed on the top of the slag discharge pipe, a strip plate is fixed to the inner wall of the end of the slag discharge pipe, and one end of the feeding screw shaft is rotatably connected to the middle part of the strip plate, arc scrapers are distributed and fixed on the outer walls on both sides of the feeding screw, and a linked lubrication unit is arranged on the top outer wall of the top mold.

[0010] Preferably, the linkage lubrication unit includes a side plate fixed on the bottom outer wall of one side of the top mold, an oil pump is installed on the top outer wall of the side plate, the oil pump and the feeding screw are coaxially connected, an oil storage tank is fixed on the outer wall of one side of the top of the side plate, the suction end of the oil pump is connected to an oil suction pipe, and the oil suction pipe runs through the interior of the oil storage tank, the pumping end of the oil pump is connected to an oil pumping pipe, the top mold is located on the outer wall above the guide hole, one end of the oil pumping pipe is connected to a branch pipe, and one end of the branch pipe is connected to the interior of the ring.

[0011] Preferably, folded air channels are provided through the inner walls on both sides of the bottom mold and the top mold.

[0012] Preferably, a sealed gas injection port is installed through one side outer wall of the liquid nitrogen box.

[0013] Preferably, the liquid nitrogen tube is a telescopic hose.

[0014] Preferably, shock-absorbing support feet are distributed and fixed on the outer walls at the four corners of the bottom of the liquid nitrogen box.

[0015] Preferably, bearings are embedded and installed at the rotational connection between the feed screw and the inner walls at both ends of the injection molding flow channel.

[0016] (3) Beneficial effects: A. Through the arrangement of horizontal shock-absorbing components and shock-absorbing support feet, the mold is installed on the mounting seat. During the operation of the optical lens molding device, the mounting seat will vibrate horizontally along the movable groove on the shock-absorbing seat. The arrangement of the ball bearings at the bottom of the movable groove makes the horizontal movement of the mounting seat more stable. During the horizontal vibration, the mounting seat will drive the circular arc spring piece to undergo elastic deformation. Under the action of the circular arc spring piece, the optical lens molding device will have a horizontal shock-absorbing effect. The arrangement of the shock-absorbing support feet 18 will have a longitudinal shock-absorbing effect on the optical lens molding device.

[0017] B. Through the setting of uniform cooling components, the setting of one-way valves and pressure relief valves, the liquid nitrogen in the liquid nitrogen box is kept at a constant pressure. The electric control box controls the air pump to pump out air into the liquid nitrogen box through the air pipe. When the air pressure in the liquid nitrogen box rises to the threshold of the pressure relief valve, the liquid nitrogen gas in the liquid nitrogen box is pumped out through the liquid nitrogen pipe and input into the telescopic airbag. The rising air pressure in the telescopic airbag drives the mobile n-type frame to move and unfold under the cooperation of the mobile guide wheel and the mobile guide groove. The telescopic airbag filled with liquid nitrogen covers the outside of the molding device to play a comprehensive cooling role. The distributed temperature sensors and the setting of the electric control box realize the monitoring of the temperature of each position outside the molding device. When it is detected that the temperature at a certain place of the molding device is too high, the electronic control box controls the corresponding electronic control valve to open, so that the liquid nitrogen in the telescopic airbag is blown out through the nozzle, and the molding device is specially cooled at that place, so that the molding device can be cooled quickly and evenly, and the sprayed liquid nitrogen is diffused in the telescopic airbag and the movable groove. During the suction process of the above-mentioned air pump through the suction pipe, part of the diffused liquid nitrogen in the movable groove will be sucked back and sucked back into the liquid nitrogen box, so as to achieve the effect of partial recovery of the cooling liquid nitrogen, and the diffused liquid nitrogen gas is filled in the movable groove, which plays a certain lubrication role for the ball bearings, so that the horizontal shock absorption of the optical lens molding device is more stable.

[0018] C. Through the setting of the linkage cutting slag discharge component, during the process of the top mold moving down to close the mold, the gear will move down along the rack, and the coordinated transmission of the rack and the gear will drive the feed screw to rotate in the injection mold runner, so as to stir and convey the molten blank in the injection mold runner, and effectively avoid the blockage of the injection mold runner and the injection mold mouth. During the process of the top mold moving up to demold, the coordinated transmission of the rack and the gear will drive the feed screw to rotate in the injection mold runner in the opposite direction, and the arc scraper on the feed screw will rotate in the injection mold runner, and the arc scraper will cut off the blank at the injection mold mouth, which is beneficial to the demolding of the optical lens molding device. In the process of using the optical lens molding device, the slag discharge valve on the slag discharge pipe can be opened, and then in conjunction with the rotation of the above-mentioned feed screw, the feed screw can transport the slag in the injection mold runner, so that the slag is discharged through the slag discharge pipe, thereby realizing the function of cleaning the slag in the mold runner of the optical lens molding device.

[0019] D. Through the setting of the linkage lubrication unit, during the process of the top mold moving down to close the mold, the gear moves down along the rack to drive the feed screw to rotate, which will drive the oil pump to rotate. The oil pump works to pump the lubricating oil in the oil tank through the oil suction pipe, and pump the lubricating oil out through the pump oil pipe and the branch pipe, so that the lubricating oil is sprayed into the sleeve ring, which plays the role of lubricating the guide hole and the guide column, which is beneficial to the long-term operation of the optical lens molding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of an optical lens molding device of the present invention; Figure 2 for Figure 1 A magnified view of the structure in the middle A area; Figure 3 It is a schematic diagram of a three-dimensional cross-section structure of a horizontal shock-absorbing component in an optical lens molding device of the present invention; Figure 4 for Figure 1 A magnified view of the structure in the middle B area; Figure 5 for Figure 1 A magnified view of the structure of the middle C region; Figure 6 for Figure 1 A magnified view of the structure in the middle D region; Figure 7 It is a schematic diagram of a three-dimensional cross-section structure of a top mold in an optical lens molding device of the present invention; Figure 8 for Figure 1 A magnified view of the structure in the middle E region; Fig. 9 for Figure 7 A magnified view of the structure in region F.

[0021] The reference numerals are as follows: 1. Bottom mold; 2. Guide column; 3. Top plate; 4. Top mold; 5. Guide hole; 6. Hydraulic rod; 7. Mounting seat; 8. Shock-absorbing seat; 9. Horizontal shock-absorbing assembly; 10. Uniform cooling assembly; 11. Injection mold flow channel; 12. Injection mold port; 13. Feed pipe; 14. Linkage cutting and slag discharge assembly; 15. Linkage lubrication unit; 16. Folding air channel; 17. Sealed air injection port; 18. Shock-absorbing support foot; 901, movable slot; 902, arc through slot; 903, slot; 904, arc spring piece; 905, card slot; 906, ball; 101, liquid nitrogen box; 102, fixed n-type frame; 103, mobile n-type frame; 104, mobile guide wheel; 105, mobile guide groove; 106, telescopic airbag; 107, air pump; 108, suction pipe; 109, filter element; 1010, air pipe; 1011, one-way valve; 1012, liquid nitrogen pipe; 1013, pressure relief valve; 1014, temperature sensor; 1015, nozzle; 1016, electric control valve; 1017, electric control box; 141. feeding screw; 142. gear; 143. rack; 144. slag discharge pipe; 145. slag discharge valve; 146. strip plate; 147. arc scraper; 151. Side plate; 152. Oil pump; 153. Oil storage tank; 154. Oil suction pipe; 155. Pump oil pipe; 156. Ring; 157. Branch pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] The following is combined with Figure 1-9 The present invention is further described with examples: In this embodiment, Figure 1-9 As shown, an optical lens molding device comprises a bottom mold 1, guide pillars 2 are fixed on the outer walls of the top four corners of the bottom mold 1, a top plate 3 is fixed on the bottom outer wall of the guide pillars 2, a top mold 4 is sleeved in the middle of the guide pillars 2, guide holes 5 are opened through the outer walls of the top four corners of the top mold 4, and the guide pillars 2 pass through the guide holes 5, a hydraulic rod 6 is fixed on the top outer wall of the top plate 3, and the bottom end of the telescopic rod of the hydraulic rod 6 is fixedly connected to the top outer wall of the top mold 4, a mounting seat 7 is fixed on the top outer wall of the bottom mold 1, a shock absorbing seat 8 is arranged on the bottom outer wall of the mounting seat 7, a horizontal shock absorbing component 9 is arranged between the mounting seat 7 and the shock absorbing seat 8, a uniform cooling component 10 is arranged on the outer wall of the shock absorbing seat 8, an injection molding flow channel 11 is opened on the inner wall of the middle part of the top mold 4, and the ... An injection mold opening 12 is provided on the outer wall of the bottom middle end of the mold runner 11, a feed pipe 13 is provided on the outer wall of one side of the top of the top mold 4, and one end of the feed pipe 13 is connected to the inside of the injection mold runner 11, and a linkage cutting and slag removal component 14 is provided on the inner wall of the injection mold runner 11. The basic structure of the optical lens molding device is a reference to the existing lens mold structure technology. During the optical lens molding process, the optical lens molten blank is input through the feed pipe 13, and the molten blank is injected into the mold cavity of the top mold 4 through the injection mold runner 11 and the injection mold opening 12. During the process, the hydraulic rod 6 is controlled to work and drive the top mold 4 to move downward under the cooperation of the guide hole 5 and the guide column 2, so that the top mold 4 and the bottom mold 1 are molded together, and a high pressure (usually 10-100) is applied during the mold closing. MPa) to press the blank into the mold cavity and keep it under high pressure for a period of time (usually a few seconds to a few minutes) to allow the material to fully fill the mold. After cooling and solidification, the hydraulic rod 6 is controlled to work with the top mold 4 to move up for demoulding, completing the molding process of the optical lens.

[0024] Furthermore, the horizontal shock absorbing component 9 includes a movable groove 901 provided on the outer wall of the top of the shock absorbing seat 8, the mounting seat 7 is placed inside the movable groove 901, and the outer walls on both sides of the mounting seat 7 are staggered and penetrated with arc grooves 902, and the outer walls on both sides of the shock absorbing seat 8 are staggered and penetrated with slots 903, and arc spring pieces 904 are inserted on the relative inner walls of the slots 903 and the arc grooves 902, and the bottom inner wall of the movable groove 901 is distributed with card slots 905, and the inner part of the card slots 905 is carded with rollers. The outer wall at the bottom of the mounting seat 7 is in contact with the top of the ball 906, and the mold is installed on the mounting seat 7. During the operation of the optical lens molding device, the mounting seat 7 will vibrate horizontally along the movable groove 901 on the shock-absorbing seat 8. The arrangement of the ball 906 at the bottom of the movable groove 901 makes the horizontal movement of the mounting seat 7 more stable. During the horizontal vibration, the mounting seat 7 will drive the arc spring piece 904 to undergo elastic deformation, and under the action of the arc spring piece 904, the optical lens molding device will have a horizontal shock-absorbing effect.

[0025] In this embodiment, refer to Figure 1 , Figure 4 , Figure 5 and Figure 6The uniform cooling component 10 includes a liquid nitrogen box 101 fixed on the outer wall of the bottom of the shock absorbing seat 8, a fixed n-type frame 102 is fixed on the outer wall of one end of the top of the shock absorbing seat 8, a movable n-type frame 103 is arranged on the outer wall of the other side of the top of the shock absorbing seat 8, and movable guide wheels 104 are fixed on the outer walls of both ends of the movable n-type frame 103. The outer walls of both sides of the top of the shock absorbing seat 8 are provided with movable guide grooves 105, and the movable guide wheels 104 are clamped in the inside of the movable guide grooves 105. A telescopic airbag 106 is covered and connected between the fixed n-type frame 102 and the movable n-type frame 103. An air pump 107 is fixed on the outer wall of one side of the liquid nitrogen box 101, and an air suction end of the air pump 107 is connected to an air suction pipe 108, one end of the air suction pipe 108 is connected to the inside of the movable groove 901, and the middle of the air suction pipe 108 is connected to the inner wall of the movable groove 901. A filter element 109 is installed through the inside of the telescopic airbag 106, a gas delivery end of the air pump 107 is connected with a gas delivery pipe 1010, one end of the gas delivery pipe 1010 is connected to the inside of the liquid nitrogen tank 101, and a one-way valve 1011 is installed at the end of the gas delivery pipe 1010, a liquid nitrogen pipe 1012 is connected to the outer wall of one side of the liquid nitrogen tank 101, one end of the liquid nitrogen pipe 1012 is connected to the inside of the telescopic airbag 106, and a pressure relief valve 1013 is installed at the end of the liquid nitrogen pipe 1012, temperature sensors 1014 are distributed and fixed on the inner walls of both sides of the telescopic airbag 106, a nozzle 1015 is connected to the outer wall of the telescopic airbag 106 on the side of the temperature sensor 1014, and an electric control valve 1016 is installed at the end of the nozzle 1015, and an electric control valve 1016 is installed on the outer wall of one side of the liquid nitrogen tank 101 Control box 1017, during the operation of the optical lens molding device, the one-way valve 1011 and the pressure relief valve 1013 are set to keep the liquid nitrogen in the liquid nitrogen box 101 at a constant pressure, and the electric control box 1017 controls the air pump 107 to suck the external air through the suction pipe 108, and the pumped air is input into the liquid nitrogen box 101 through the air supply pipe 1010, so that when the air pressure in the liquid nitrogen box 101 rises and reaches the threshold value of the pressure relief valve 1013, the liquid nitrogen gas in the liquid nitrogen box 101 is pumped out through the liquid nitrogen pipe 1012 and input into the telescopic airbag 106. The rising air pressure in the telescopic airbag 106 drives the mobile n-type frame 103 to move and unfold under the cooperation of the mobile guide wheel 104 and the mobile guide groove 105, and the unfolded telescopic airbag 106 covers the outside of the molding device and fills the liquid The nitrogen telescopic airbag 106 covers the outside of the molding device to play a comprehensive cooling role. The temperature sensors 1014 distributed on the inner wall of the telescopic airbag 106 detect the temperature of various positions outside the molding device. The electric control box 1017 performs big data analysis on the detection data of the temperature sensor 1014, thereby realizing the monitoring of the temperature of various positions outside the molding device. When it is detected that the temperature of a certain place of the molding device is too high, the electric control box 1017 controls the corresponding electric control valve 1016 to open, so that the liquid nitrogen in the telescopic airbag 106 is blown out through the nozzle 1015, and the molding device is specially cooled, so that the molding device is cooled quickly and evenly, and the sprayed liquid nitrogen is diffused in the telescopic airbag 106 and the movable groove 901.The air pump 107 will suck back some of the diffused liquid nitrogen in the movable groove 901 through the suction pipe 108 during the suction process, and suck it back into the liquid nitrogen box 101, so as to realize the function of partially recovering the cooled liquid nitrogen, and the diffused liquid nitrogen gas fills the movable groove 901, which plays a certain lubricating role for the ball 906, so that the optical lens molding device can be more stable in horizontal shock absorption.

[0026] In this embodiment, refer to Figure 1 , Figure 7 and Fig. 9 The linkage cutting and slag discharge assembly 14 includes a feeding screw 141 rotatably connected to the inner walls of both ends of the injection mold runner 11, a gear 142 is fixed to one end of the feeding screw 141 shaft passing through the outside of the top mold 4, a rack 143 is fixed to one side of the outer wall of the bottom mold 1, and the gear 142 and the rack 143 are meshed and connected, a slag discharge pipe 144 is embedded and connected on the outer wall of the other end of the top mold 4, and a slag discharge valve 145 is installed on the top of the slag discharge pipe 144, and the slag discharge pipe 144 is connected to the bottom of the top mold 4. A strip plate 146 is fixed on the inner wall of the end of 144, and one end of the rotating shaft of the feeding screw 141 is rotatably connected to the middle of the strip plate 146. Arc scrapers 147 are distributed and fixed on the outer walls of both sides of the feeding screw 141. A linkage lubrication unit 15 is arranged on the top outer wall of the top mold 4. When the top mold 4 moves down to close the mold, the gear 142 moves down along the rack 143, and the feeding screw 141 is driven by the coordinated transmission of the rack 143 and the gear 142. It rotates in the injection mold runner 11, which has the effect of stirring and conveying the molten blank in the injection mold runner 11, and effectively avoids the problem of blank blockage in the injection mold runner 11 and the injection mold port 12. During the demolding process of the top mold 4 moving up, the feeding screw 141 will be driven to rotate in the opposite direction in the injection mold runner 11 under the coordinated transmission of the rack 143 and the gear 142, and the circular arc scraper 147 on the feeding screw 141 will rotate in the injection mold runner 11, and the circular arc scraper 147 will cut off the blank at the injection mold port 12, which is beneficial to the demolding of the optical lens molding device. During the use of the optical lens molding device, the slag discharge valve 145 on the slag discharge pipe 144 can be opened, and then in conjunction with the rotation of the above-mentioned feeding screw 141, the feeding screw 141 can convey the slag in the injection mold runner 11, so that the slag is discharged through the slag discharge pipe 144, thereby realizing the function of cleaning the slag in the mold runner of the optical lens molding device.

[0027] Furthermore, folded air channels 16 are provided on the inner walls on both sides of the bottom mold 1 and the top mold 4. When the sprayed liquid nitrogen diffuses in the telescopic airbag 106 and the movable groove 901, the liquid nitrogen gas will pass through the folded air channels 16 in the bottom mold 1 and the top mold 4, thereby quickly reducing the mold temperature.

[0028] Furthermore, a sealed gas injection port 17 is installed through the outer wall of one side of the liquid nitrogen box 101 , and the liquid nitrogen in the liquid nitrogen box 101 is replenished through the sealed gas injection port 17 .

[0029] Furthermore, the liquid nitrogen tube 1012 is a telescopic hose, and the provision of the telescopic hose ensures the telescopic gas transmission of the liquid nitrogen tube 1012 during the movement and deployment of the telescopic airbag 106 .

[0030] Furthermore, shock-absorbing support feet 18 are distributed and fixed on the outer walls of the four corners of the bottom of the liquid nitrogen box 101. The setting of the shock-absorbing support feet 18 plays a role in longitudinal shock absorption of the optical lens molding device.

[0031] In this embodiment, refer to Figure 1 , Figure 2 and Figure 8 The linkage lubrication unit 15 includes a side plate 151 fixed on the bottom outer wall of one side of the top mold 4, an oil pump 152 is installed on the top outer wall of the side plate 151, the oil pump 152 and the feeding screw 141 are coaxially connected, an oil storage tank 153 is fixed on the outer wall of one side of the top of the side plate 151, the suction end of the oil pump 152 is connected to an oil suction pipe 154, and the oil suction pipe 154 runs through the interior of the oil storage tank 153, the pumping end of the oil pump 152 is connected to an oil pump pipe 155, the top mold 4 is located on the outer wall above the guide hole 5. The outer wall of the guide hole 5 is provided with a ring 156, and one end of the oil pump pipe 155 is provided with a ring 156. It is connected with a branch pipe 157, and one end of the branch pipe 157 is connected to the inside of the sleeve ring 156. During the process of the top mold 4 moving down to close the mold, the gear 142 moves down along the rack 143 to drive the feed screw 141 to rotate, which will drive the oil pump 152 to rotate. The oil pump 152 works to pump the lubricating oil in the oil storage tank 153 through the oil suction pipe 154, and pump the lubricating oil out through the oil pump pipe 155 and the branch pipe 157, so that the lubricating oil is sprayed into the sleeve ring 156, which plays a role in lubricating the guide hole 5 and the guide column 2, which is beneficial to the long-term operation of the optical lens molding device.

[0032] Furthermore, bearings are embedded and installed at the rotation connection between the feeding screw 141 and the inner walls at both ends of the injection molding flow channel 11. The arrangement of the bearings enables the feeding screw 141 to rotate more smoothly.

[0033] Working principle: When the present invention is in use, the basic structure of the optical lens molding device is a reference to the existing lens mold structure technology. During the optical lens molding process, the optical lens molten blank is input through the feed pipe 13, and the molten blank is injected into the cavity of the top mold 4 through the injection mold runner 11 and the injection mold port 12. During the process, the hydraulic rod 6 is controlled to work to drive the top mold 4 to move downward with the cooperation of the guide hole 5 and the guide column 2, so that the top mold 4 and the bottom mold 1 are molded together. The mold is closed and a high pressure (usually 10-100MPa) is applied to press the blank into the mold cavity. The high pressure is maintained for a period of time (usually a few seconds to a few minutes) to allow the material to fully fill the mold. After cooling and solidification, the hydraulic rod 6 is controlled to work to drive the top mold 4 to move upward for demolding, and the molding process of the optical lens is completed. The mold is installed Installed on the mounting seat 7, during the operation of the above-mentioned optical lens molding device, the mounting seat 7 will vibrate horizontally along the movable groove 901 on the shock-absorbing seat 8. The arrangement of the ball bearing 906 at the bottom of the movable groove 901 makes the horizontal movement of the mounting seat 7 more stable. During the horizontal vibration, the mounting seat 7 will drive the circular arc spring piece 904 to elastically deform, and under the action of the circular arc spring piece 904, it plays the role of horizontal shock absorption of the optical lens molding device; during the operation of the above-mentioned optical lens molding device, the arrangement of the one-way valve 1011 and the pressure relief valve 1013 keeps the liquid nitrogen in the liquid nitrogen box 101 at a constant pressure, and the electric control box 1017 controls the air pump 107 to work to suck the external air through the suction pipe 108, and the pumped air is input into the liquid nitrogen box 101 through the air supply pipe 1010, so that the liquid nitrogen box When the air pressure in 101 rises and reaches the threshold of the pressure relief valve 1013, the liquid nitrogen gas in the liquid nitrogen tank 101 is pumped out through the liquid nitrogen pipe 1012 and input into the telescopic airbag 106. The rising air pressure in the telescopic airbag 106 drives the mobile n-type frame 103 to move and unfold under the cooperation of the mobile guide wheel 104 and the mobile guide groove 105. The unfolded telescopic airbag 106 covers the outside of the molding device. The telescopic airbag 106 filled with liquid nitrogen covers the outside of the molding device to play a comprehensive cooling role. The temperature sensors 1014 distributed on the inner wall of the telescopic airbag 106 detect the temperature of various positions outside the molding device. The electric control box 1017 performs big data analysis on the detection data of the temperature sensor 1014, thereby realizing the monitoring of the temperature of various positions outside the molding device. When it is detected that the temperature of a certain place of the molding device is too high, the electric control box 1017 controls the corresponding electric control valve 1016 to open, so that the liquid nitrogen in the telescopic airbag 106 is blown out through the nozzle 1015, and the molding device is specially cooled at this place, so that the molding device is cooled quickly and evenly, and the sprayed liquid nitrogen is diffused in the telescopic airbag 106 and the movable groove 901. The above-mentioned air pump 107 will suck back the partially diffused liquid nitrogen in the movable groove 901 during the suction process through the suction pipe 108, and suck it back into the liquid nitrogen box 101, so as to realize the effect of partially recovering the cooling liquid nitrogen, and the diffused liquid nitrogen gas is filled in the movable groove 901, which plays a certain lubricating role for the ball 906, so that the optical lens molding device can be horizontally cushioned more smoothly;During the downward movement of the top mold 4 for mold closing, the gear 142 will move downward along the rack 143, and the coordinated transmission of the rack 143 and the gear 142 will drive the feed screw 141 to rotate in the injection mold runner 11, so as to stir and convey the molten blank in the injection mold runner 11, and effectively avoid the problem of blank blockage in the injection mold runner 11 and the injection mold port 12. During the upward movement of the top mold 4 for demolding, the coordinated transmission of the rack 143 and the gear 142 will drive the feed screw 141 to rotate in the opposite direction in the injection mold runner 11, and the circular arc scraper 147 on the feed screw 141 will rotate in the injection mold runner 11, and the circular arc scraper 147 will cut off the blank at the injection mold port 12, which is beneficial to the demolding of the optical lens molding device, and the use of the optical lens molding device During the process, the slag discharge valve 145 on the slag discharge pipe 144 can be opened, and then the feed screw 141 rotates, and the feed screw 141 conveys the slag in the injection mold flow channel 11, so that the slag is discharged through the slag discharge pipe 144, and the slag in the mold flow channel of the optical lens molding device is cleaned. During the downward movement of the top mold 4, the gear 142 moves down along the rack 143 to drive the feed screw 141 to rotate, which will drive the oil pump 152 to rotate. The oil pump 152 works to pump the lubricating oil in the oil storage tank 153 through the oil suction pipe 154, and pumps the lubricating oil out through the pump oil pipe 155 and the branch pipe 157, so that the lubricating oil is sprayed into the sleeve ring 156, which plays a role in lubricating the guide hole 5 and the guide column 2, which is beneficial to the long-term operation of the optical lens molding device. ;

[0034] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. An optical lens molding device, characterized in that: The invention comprises a bottom mold (1), guide pillars (2) are fixed on the outer walls of the top four corners of the bottom mold (1), a top plate (3) is fixed on the outer walls of the bottom of the guide pillars (2), a top mold (4) is sleeved on the middle of the guide pillars (2), guide holes (5) are formed through the outer walls of the top four corners of the top mold (4), and the guide pillars (2) pass through the guide holes (5), a hydraulic rod (6) is fixed on the outer wall of the top of the top plate (3), and the bottom end of the telescopic rod of the hydraulic rod (6) is fixedly connected to the outer wall of the top of the top mold (4), a mounting seat (7) is fixed on the outer wall of the top of the bottom mold (1), and the bottom outer wall of the mounting seat (7) is A damping seat (8) is arranged on the top, a horizontal damping assembly (9) is arranged between the mounting seat (7) and the damping seat (8), a uniform cooling assembly (10) is arranged on the outer wall of the damping seat (8), an injection mold flow channel (11) is opened on the middle inner wall of the top mold (4), and an injection mold port (12) is opened through the outer wall of the middle bottom of the injection mold flow channel (11), a feed pipe (13) is connected through the outer wall of one side of the top of the top mold (4), and one end of the feed pipe (13) is passed through the inside of the injection mold flow channel (11), and a linkage cutting slag discharge assembly (14) is arranged on the inner wall of the injection mold flow channel (11).

2. An optical lens molding device as claimed in claim 1, characterized in that: The horizontal shock absorbing component (9) comprises a movable groove (901) provided on the top outer wall of the shock absorbing seat (8), the mounting seat (7) is placed inside the movable groove (901), and arc grooves (902) are staggered and penetrated on the outer walls on both sides of the mounting seat (7), slots (903) are staggered and penetrated on the outer walls on both sides of the shock absorbing seat (8), arc spring pieces (904) are inserted on the opposite inner walls of the slots (903) and the arc grooves (902), the bottom inner wall of the movable groove (901) is distributed with clamping grooves (905), and the inside of the clamping grooves (905) is clamped with balls (906), and the bottom outer wall of the mounting seat (7) and the top of the balls (906) are in contact and connected.

3. An optical lens molding device as claimed in claim 2, characterized in that: The uniform cooling component (10) comprises a liquid nitrogen box (101) fixed to the outer wall of the bottom of the damping seat (8), a fixed n-shaped frame (102) is fixed to the outer wall of one end of the top of the damping seat (8), a movable n-shaped frame (103) is arranged on the outer wall of the other side of the top of the damping seat (8), movable guide wheels (104) are fixed to the outer walls of both ends of the movable n-shaped frame (103), and movable guide grooves (105) are provided on the outer walls of both sides of the top of the damping seat (8). , and the movable guide wheel (104) is clamped in the interior of the movable guide groove (105); a telescopic air bag (106) is covered and connected between the fixed n-type frame (102) and the movable n-type frame (103); an air pump (107) is fixed on the outer wall of one side of the liquid nitrogen box (101); an air suction end of the air pump (107) is connected to an air suction pipe (108); one end of the air suction pipe (108) is connected to the interior of the movable groove (901), and the middle of the air suction pipe (108) is A filter element (109) is installed through the gas delivery end of the air pump (107), a gas delivery pipe (1010) is connected through the gas delivery pipe (1010), one end of the gas delivery pipe (1010) passes through the interior of the liquid nitrogen box (101), and a one-way valve (1011) is installed at the end of the gas delivery pipe (1010), a liquid nitrogen pipe (1012) is connected through the outer wall of one side of the liquid nitrogen box (101), and one end of the liquid nitrogen pipe (1012) is connected to the interior of the telescopic airbag (106), and A pressure relief valve (1013) is installed at the end of the liquid nitrogen tube (1012); temperature sensors (1014) are distributed and fixed on the inner walls of both sides of the telescopic airbag (106); a nozzle (1015) is connected through the outer wall of the telescopic airbag (106) on the side of the temperature sensor (1014); an electric control valve (1016) is installed at the end of the nozzle (1015); and an electric control box (1017) is installed on the outer wall of one side of the liquid nitrogen box (101).

4. An optical lens molding device as claimed in claim 1, characterized in that: The linked cutting and slag removal assembly (14) comprises a feed screw (141) rotatably connected to the inner walls at both ends of the injection mold flow channel (11); a gear (142) is fixed to one end of the feed screw (141) whose shaft passes through the outside of the top mold (4); a rack (143) is fixed to one side of the outer wall of the bottom mold (1), and the gear (142) and the rack (143) are meshingly connected; a slag discharge pipe (144) is embedded and connected to the outer wall of the other end of the top mold (4), and a slag discharge valve (145) is installed on the top of the slag discharge pipe (144); a strip plate (146) is fixed to the inner wall of the end of the slag discharge pipe (144), and one end of the feed screw (141) shaft is rotatably connected to the middle of the strip plate (146); arc scrapers (147) are distributed and fixed on the outer walls of both sides of the feed screw (141); and a linked lubrication unit (15) is provided on the top outer wall of the top mold (4).

5. An optical lens molding device as claimed in claim 4, characterized in that: The linkage lubrication unit (15) comprises a side plate (151) fixed on the bottom outer wall of one side of the top mold (4); an oil pump (152) is installed on the top outer wall of the side plate (151); the oil pump (152) and the feeding screw (141) are coaxially connected; an oil storage tank (153) is fixed on the top outer wall of one side of the side plate (151); the suction end of the oil pump (152) is connected to an oil suction pipe (154), and the oil suction pipe (154) runs through the interior of the oil storage tank (153); the pumping end of the oil pump (152) is connected to an oil pump pipe (155); a sleeve ring (156) is provided on the outer wall of the top mold (4) above the guide hole (5); one end of the oil pump pipe (155) is connected to a branch pipe (157), and one end of the branch pipe (157) is connected to the interior of the sleeve ring (156).

6. An optical lens molding device as claimed in claim 1, characterized in that: Folding air passages (16) are provided through the inner walls of both sides of the bottom mold (1) and the top mold (4).

7. An optical lens molding device as claimed in claim 3, characterized in that: A sealed gas injection port (17) is installed through an outer wall of one side of the liquid nitrogen box (101).

8. An optical lens molding device as claimed in claim 3, characterized in that: The liquid nitrogen tube (1012) is a telescopic hose.

9. An optical lens molding device as claimed in claim 3, characterized in that: Shock-absorbing support feet (18) are distributed and fixed on the outer walls at the four corners of the bottom of the liquid nitrogen box (101).

10. An optical lens molding device as claimed in claim 4, characterized in that: Bearings are embedded and installed at the rotational connection points between the feeding screw (141) and the inner walls at both ends of the injection molding flow channel (11).

Images