Contact lens die assembly forming equipment

Abstract

The invention discloses mold closing forming equipment for contact lenses, and relates to the technical field of contact lenses. The output end of the air cylinder is connected with a male die, a cleaning assembly is arranged on the outer wall of the male die, the portion, located at the spherical surface end of the male die, of the cleaning assembly is provided with a deformable rubber structure, and the cleaning assembly is used for cleaning the spherical surface of the male die. Through the arrangement of the cleaning assembly, after the contact lenses are formed, if the contact lenses are attached to the male die, when the air cylinder drives the male die to reset, the cleaning assembly can demold the contact lenses attached to the male die, so that the mold demolding efficiency is improved, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of contact lenses, and specifically to a contact lens mold closing and forming device. Background Art

[0002] In the production and manufacturing process of contact lenses, contact lens blanks are formed by injecting liquid, closing the upper mold and the lower mold, and curing in an oven.

[0003] Chinese Patent Application No. CN201911001337.3 discloses a contact lens mold closing and forming device, including a frame. A turntable device, a lower mold automatic discharging device, a lower mold picking device, an injection device, an upper mold automatic discharging device, an upper mold picking device, a mold closing device, a lifting device, a discharging device, and a tunnel oven device are respectively connected to the frame; the mold closing device includes a mold closing horizontal driving cylinder, a pressing and lifting servo, a spring, and an upper mold suction nozzle; although the automatic contact lens mold closing and forming device provided by this invention realizes automatic feeding of the upper mold and the lower mold for contact lens forming, automatic liquid injection, mold closing, and automatic baking and forming, achieving full-automatic production in the contact lens forming process, only one operator is required to supplement the materials of the upper mold and the lower mold, greatly improving the production efficiency, reducing the labor intensity, and saving costs;

[0004] However, after discharging the formed contact lenses, there is no corresponding cleaning structure to clean the mold after discharging. The remaining liquid may combine with dust and impurities in the air to form contaminants attached to the surface of the mold. If not cleaned for a long time, it will affect the surface finish of the mold and may even accelerate the wear of the mold. If the liquid residue is not cleaned, it may cause problems in the next production batch, requiring additional time to handle, which will delay the production progress and reduce the overall production efficiency. In view of the above problems, the inventor proposes a contact lens mold closing and forming device to solve the above problems. Summary of the Invention

[0005] In order to solve the problem of mold residues, a corresponding cleaning structure needs to be set; the purpose of the present invention is to provide a contact lens mold closing and forming device.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions: a frame and an injection pipe. Rotating grooves are respectively provided at both ends of the top of the frame. A support assembly is rotatably connected between the two rotating grooves. A third motor is installed on the outer wall of one side of the top of the frame, and the third motor is used to drive the support assembly;

[0007] A cylinder is installed on the top of the support assembly, and a guiding structure for guiding and moving the injection pipe is provided at one end of the support assembly;

[0008] A punch is connected to the output end of the cylinder. A cleaning component is arranged on the outer wall of the punch. A deformable rubber structure is arranged at the spherical end of the punch for the cleaning component to clean the spherical surface of the punch.

[0009] A female mold is installed at the bottom of the support component. Two liquid injection pipes are arranged outside the punch. In the initial state, the bottom port of the liquid injection pipe faces the top port of the female mold. The female mold and the punch cooperate with each other to form contact lenses.

[0010] A rack is connected to the top of the support component. A gear is rotatably connected to the middle of the female mold. The rack and the gear mesh with each other.

[0011] A spherical shell is arranged at the top of the female mold, and the bottom of the female mold is a tube body. An oscillation structure is installed on the inner wall of the tube body of the female mold.

[0012] After the third motor adjusts the angle of the support component, the oscillation structure collides and cooperates with the gear to collide with the bottom outer wall of the spherical shell of the female mold, and demold the contact lenses attached to the inner wall of the female mold.

[0013] A plurality of air holes are formed at the edge of the top port of the female mold. An air flow blowing structure is installed at the bottom port of the female mold. The air flow blows the contact lenses through the air holes and cooperates with the oscillation structure to demold the contact lenses.

[0014] By adopting the above technical solution, when the device starts to work, the liquid injection pipe injects the liquid material required for forming between the female mold and the punch. The female mold and the punch cooperate with each other to form the raw material into the shape of a contact lens in this space. The cleaning component can demold the contact lenses adhered to the surface of the punch, and at the same time can frictionally clean the dirt on the surface of the punch. The spherical shape of the punch fits with the concave surface of the female mold. When the cleaning component rises into the interior of the female mold, it can cooperate with the air flow blowing structure to clean the interior of the female mold.

[0015] A rack is connected to the top of the support component, and a gear is rotatably connected to the middle of the female mold. The rack and the gear mesh with each other. After the third motor adjusts the angle of the support component, the oscillation structure in the female mold collides and cooperates with the gear, and this collision generates an impact force on the bottom outer wall of the spherical shell of the female mold.

[0016] A plurality of air holes are formed at the edge of the top port of the female mold, and an air flow blowing structure is installed at the bottom port. The air flow blows the contact lenses through the air holes and, at the same time, cooperates with the action of the oscillation structure to separate the formed contact lenses from the inner wall of the female mold, thus completing the demolding process.

[0017] Preferably, the support assembly includes a support frame, with a first ring and a second ring fixedly connected to both sides of the support frame respectively. The first ring and the second ring are respectively rotatably connected to the inner wall of the rotation groove of the frame, and the output shaft of the third motor is connected to the middle of the second ring;

[0018] By adopting the above technical solution, the output shaft of the third motor drives the second ring to rotate, thereby adjusting the angles of the first ring, the second ring and the support frame, so that the punch and the die are adjusted from a vertical state to a horizontal state, and at the same time, the device is supported. This is to facilitate the subsequent process of discharging contact lenses by the device and cleaning the punch and the die, and it is convenient for discharging.

[0019] Preferably, a moving frame is slidably connected to the inner side of the support frame. The top of the punch is fixedly connected to the moving frame. Chute grooves are respectively arranged at both ends of the moving frame. Two inclined grooves are arranged at one end of the support frame close to the moving frame. The two inclined grooves are symmetric on the support frame. A connecting frame is fixedly connected to the bottom of the support frame, and the connecting frame is used for installing and fixing the die;

[0020] A connecting block is slidably connected between the inclined groove and the chute groove of the moving frame, and the top of the liquid injection pipe is fixedly connected to one end of the connecting block;

[0021] By adopting the above technical solution, after the liquid injection through the liquid injection pipe is completed, the output end of the cylinder drives the punch and the moving frame to be pushed. During the pushing process, the chute groove of the moving frame cooperates with the inclined groove, so that the two liquid injection pipes move away from the punch, and the bottom port of the liquid injection pipe moves away from the top port of the die, thereby facilitating the cooperation of the punch and the die for forming contact lenses.

[0022] Preferably, the cleaning assembly includes a collar, the collar is sleeved on the outer wall of the punch, a rotating ring is rotatably connected to the outer wall of the collar, and four soft rubber arc-shaped strips are connected to the outer wall of the rotating ring.

[0023] Preferably, the soft rubber arc-shaped strip is made of soft rubber material. A notch is arranged on the side of the soft rubber arc-shaped strip close to the punch, and a plurality of through holes are arranged on the outer wall of the soft rubber arc-shaped strip;

[0024] By adopting the above technical solution, when the punch and the die form contact lenses, the punch squeezes and pushes the soft rubber arc-shaped strip. Since the soft rubber arc-shaped strip is made of soft rubber material and is deformable, the soft rubber arc-shaped strip deforms and fits on the outer wall of the punch, and the punch reaches the port of the die through the middle of the four soft rubber arc-shaped strips;

[0025] After molding, if the contact lens adheres to the spherical outer wall of the male mold, the air cylinder drives the male mold to reset. Since the soft rubber arc strip deforms and fits on the outer wall of the male mold, during this process, the soft rubber arc strip removes the contact lens on the outer wall of the male mold, thus realizing demolding. Subsequently, it continues to reset, and the soft rubber arc strip resets and fits the spherical outer wall of the male mold, facilitating subsequent cleaning.

[0026] Preferably, a plurality of teeth are fixedly connected to the outer wall of the rotating ring, a first motor is installed on the outer wall of the collar, a driving gear is installed on the output shaft of the first motor, and the driving gear meshes with the teeth;

[0027] By adopting the above technical solution, the output shaft of the first motor drives the driving gear to rotate, the driving gear meshes with the teeth, thereby driving the rotating ring and the soft rubber arc strip to rotate. The soft rubber arc strip rubs against the outer wall of the male mold, and the dirt is cleaned into the notch inside the soft rubber arc strip. The through hole is provided for cooperating with the air flow blowing structure for use.

[0028] Preferably, a connecting rod is fixedly connected to the outer wall of the collar, a moving groove is formed on one side of the support frame, the connecting rod is slidably connected to the inner wall of the moving groove, a first spring is installed inside one end of the connecting rod, a limiting rod is slidably connected inside one end of the connecting rod, the first spring is located on top of the limiting rod, a limiting groove is formed on the inner wall of the moving groove, and the limiting rod and the limiting groove are in limiting cooperation with each other;

[0029] The tension of the first spring keeps the limiting rod and the limiting groove in a limiting state. When the female mold needs to be cleaned, the limiting rod is slid to release the limit, the male mold drives the cleaning component to move, the cleaning component moves along the moving groove and moves to the surface of the female mold. While the cleaning component operates, it cleans both the male mold and the female mold.

[0030] Preferably, the rack is fixedly connected to the moving frame, and the oscillating structure includes a second spring and an elastic ball. One end of the second spring is connected to the inner wall of the tube body of the female mold, and the elastic ball is fixedly connected to the other end of the second spring;

[0031] By adopting the above technical solution, during the movement of the moving frame, the rack is driven to move. The rack meshes with the gear to rotate, the gear collides with the elastic ball, and the elastic ball cooperates with the second spring to vibrate the spherical shell of the female mold. At the end of molding, when the rack rises again to drive the elastic ball to operate, the vibration at this time is beneficial to the demolding and discharging of the contact lens on the female mold.

[0032] Preferably, the elastic ball is located outside the top of the gear, the elastic ball is close to the outer wall of the gear under the influence of gravity, and the elastic ball is located below the spherical shell of the female mold;

[0033] By adopting the above technical solution, the installation positions of the gear, the second spring and the elastic ball.

[0034] Preferably, the air flow blowing structure includes a fan blade and a second motor. An installation frame is fixedly connected to the bottom port of the female mold. The second motor is installed on the installation frame, and the fan blade is installed on the output shaft of the second motor and is located inside the tube body of the female mold.

[0035] By adopting the above technical solution, the output shaft of the second motor drives the fan blade to rotate. The air flow at the bottom of the female mold flows upward and flows out through the air holes. This air flow cooperates with the through holes to blow and clean the surface of the male mold. The soft rubber arc-shaped strip is provided with a plurality of through holes that are interconnected. The through holes can be close to the outer wall of the spherical shell of the female mold. When the male mold and the female mold are close to each other, the air flow cooperates with the soft rubber arc-shaped strip to clean the male mold and the female mold for the second time.

[0036] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0037] 1. Through the setting of the cleaning component in the present invention, after the contact lens is formed, if the contact lens adheres to the male mold, when the cylinder drives the male mold to reset, the cleaning component can demold the contact lens adhering to the male mold, thereby improving the demolding efficiency of the mold and improving the work efficiency. Subsequently, the cleaning component operates to clean the male mold. When the cylinder drives the male mold and the cleaning component to rise into the interior of the female mold, it can cooperate with the air flow blowing structure to clean the surface of the male mold and the interior of the female mold. Cleaning is carried out after demolding, reducing pollution caused by dirt during the next molding, thereby enhancing the molding effect.

[0038] 2. Through the setting of the soft rubber arc-shaped strip in the present invention, since the soft rubber arc-shaped strip is a soft material, during the process of cleaning the female mold and the male mold, this soft material reduces the wear of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0040] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0041] Figure 2 It is a schematic diagram of the frame structure of the present invention.

[0042] Figure 3 It is a schematic diagram of the support component of the present invention.

[0043] Figure 4 This is a schematic diagram of the punch structure of the present invention.

[0044] Figure 5 This is a schematic diagram of the punch, die, cylinder and guiding structure of the present invention.

[0045] Figure 6 This is a schematic diagram of the cleaning component of the present invention.

[0046] Figure 7 This is the present invention Figure 6 The schematic diagram of the structure at position A in it.

[0047] Figure 8 This is a schematic diagram of the die and rack structure of the present invention.

[0048] Figure 9 This is a schematic diagram of the internal structure of the die of the present invention.

[0049] Figure 10 This is a schematic diagram of the structure of the present invention after horizontal adjustment.

[0050] Figure 11 This is the present invention Figure 10 The schematic diagram of the structure at position B in it.

[0051] Figure 12 This is a schematic diagram of the second ring and the third motor structure of the present invention.

[0052] In the figure:

[0053] 1. Frame;

[0054] 2. Support component; 201. Support frame; 202. First ring; 203. Second ring; 204. Inclined groove; 205. Connecting frame; 206. Moving groove; 2060. Limiting groove; 207. Moving frame;

[0055] 3. Cylinder;

[0056] 4. Punch;

[0057] 5. Liquid injection pipe; 501. Connecting block;

[0058] 6. Die; 601. Air hole;

[0059] 7. Rack;

[0060] 8. Cleaning component; 801. Sleeve ring; 802. Rotating ring; 803. Soft rubber arc strip; 804. Through hole; 805. First motor; 806. Driving gear; 807. Limiting rod; 808. First spring; 809. Connecting rod;

[0061] 9. Gear;

[0062] 10. Second spring;

[0063] 11. Elastic ball;

[0064] 12. Fan blade;

[0065] 13. Second motor;

[0066] 14. Third motor. Detailed implementation manner

[0067] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0068] Embodiment 1

[0069] As Figures 1 - 12 shown, the present invention provides a contact lens mold closing and forming device, including a frame 1 and a liquid injection pipe 5. Rotating grooves are respectively arranged at both ends of the top of the frame 1, and a support assembly 2 is rotatably connected between the two rotating grooves. A third motor 14 is installed on the outer wall of one side of the top of the frame 1, and the third motor 14 is used to drive the support assembly 2;

[0070] A cylinder 3 is installed on the top of the support assembly 2, and a guiding structure for guiding and moving the liquid injection pipe 5 is arranged at one end of the support assembly 2;

[0071] A punch 4 is connected to the output end of the cylinder 3. A cleaning assembly 8 is arranged on the outer wall of the punch 4. A deformable rubber structure is arranged at the spherical end of the cleaning assembly 8, and the cleaning assembly 8 is used to clean the spherical surface of the punch 4;

[0072] A female mold 6 is installed at the bottom of the support assembly 2. Two liquid injection pipes 5 are arranged outside the punch 4. In the initial state, the bottom port of the liquid injection pipe 5 faces the top port of the female mold 6, and the female mold 6 and the punch 4 cooperate with each other to form the contact lens;

[0073] A rack 7 is connected to the top of the support assembly 2, and a gear 9 is rotatably connected to the middle of the female mold 6. The rack 7 and the gear 9 are meshed with each other;

[0074] A spherical shell is arranged at the top of the female mold 6, the bottom of the female mold 6 is a tube body, and an oscillating structure is installed on the inner wall of the tube body of the female mold 6;

[0075] After the third motor 14 adjusts the angle of the support assembly 2, the oscillating structure collides and cooperates with the gear 9 to collide with the bottom outer wall of the spherical shell of the female mold 6 to demold the contact lens attached to the inner wall of the female mold 6;

[0076] A plurality of air holes 601 are provided at the edge of the top port of the female mold 6, and an air flow blowing structure is installed at the bottom port of the female mold 6. The air flow blows the contact lens through the air holes 601, and cooperates with the oscillation structure to demold the contact lens.

[0077] By adopting the above technical solution, when the device starts to work, the liquid injection pipe 5 injects the liquid material required for molding into the space between the female mold 6 and the male mold 4. The female mold 6 and the male mold 4 cooperate with each other to form the raw material into the shape of a contact lens in this space. The cleaning component 8 can demold the contact lens adhered to the surface of the male mold 4, and at the same time can frictionally clean the dirt on the surface of the male mold 4. The spherical shape of the male mold 4 fits with the concave surface of the female mold 6. When the cleaning component 8 rises into the interior of the female mold 6, it can cooperate with the air flow blowing structure to clean the interior of the female mold 6.

[0078] The top of the support component 2 is connected to a rack 7, and a gear 9 is rotatably connected to the middle of the female mold 6. The rack 7 and the gear 9 are meshed with each other. After the third motor 14 adjusts the angle of the support component 2, the oscillation structure in the female mold 6 collides and cooperates with the gear 9, and this collision will generate an impact force on the bottom outer wall of the spherical shell of the female mold 6.

[0079] A plurality of air holes 601 are provided at the edge of the top port of the female mold 6, and an air flow blowing structure is installed at the bottom port. The air flow blows the contact lens through the air holes 601, and at the same time cooperates with the action of the oscillation structure to make the molded contact lens detach from the inner wall of the female mold 6, thereby completing the demolding process.

[0080] Embodiment 2

[0081] As Figures 1 - 4 shown, the support component 2 includes a support frame 201. First ring 202 and second ring 203 are respectively fixedly connected to both sides of the support frame 201. The first ring 202 and the second ring 203 are respectively rotatably connected to the inner wall of the rotation groove of the frame 1, and the output shaft of the third motor 14 is connected to the middle of the second ring 203.

[0082] By adopting the above technical solution, the output shaft of the third motor 14 drives the second ring 203 to rotate, thereby adjusting the angles of the first ring 202, the second ring 203 and the support frame 201, and adjusting the male mold 4 and the female mold 6 from a vertical state to a horizontal state, and at the same time supporting the device. This is for the convenience of subsequent discharging of the contact lens by the device and cleaning of the male mold 4 and the female mold 6.

[0083] A moving frame 207 is slidably connected to the inner side of the support frame 201. The top of the punch 4 is fixedly connected to the moving frame 207. Chute grooves are respectively arranged at both ends of the moving frame 207. Two inclined grooves 204 are arranged at one end of the support frame 201 close to the moving frame 207. The two inclined grooves 204 are symmetrical on the support frame 201. A connecting frame 205 is fixedly connected to the bottom of the support frame 201. The connecting frame 205 is used for installing and fixing the female mold 6.

[0084] A connecting block 501 is slidably connected between the inclined groove 204 and the chute groove of the moving frame 207. The top of the liquid injection pipe 5 is fixedly connected to one end of the connecting block 501.

[0085] By adopting the above technical solution, after the liquid injection through the liquid injection pipe 5 is completed, the output end of the air cylinder 3 drives the punch 4 and the moving frame 207 to push. During the pushing process, the chute groove of the moving frame 207 cooperates with the inclined groove 204, so that the two liquid injection pipes 5 move away from the punch 4, and the bottom port of the liquid injection pipe 5 moves away from the top port of the female mold 6, thereby facilitating the cooperation of the punch 4 and the female mold 6 for forming contact lenses.

[0086] Embodiment III

[0087] As Figures 5 - 6 shown, the cleaning assembly 8 includes a collar 801. The collar 801 is sleeved on the outer wall of the punch 4. A rotating ring 802 is rotatably connected to the outer wall of the collar 801. Four soft rubber arc-shaped strips 803 are connected to the outer wall of the rotating ring 802.

[0088] The soft rubber arc-shaped strip 803 is made of soft rubber material. A notch is arranged on the side of the soft rubber arc-shaped strip 803 close to the punch 4. A plurality of through holes 804 are formed on the outer wall of the soft rubber arc-shaped strip 803.

[0089] By adopting the above technical solution, when the punch 4 and the female mold 6 form contact lenses, the punch 4 squeezes and pushes the soft rubber arc-shaped strip 803. Since the soft rubber arc-shaped strip 803 is made of soft rubber material and can be deformed, the soft rubber arc-shaped strip 803 deforms and fits on the outer wall of the punch 4. The punch 4 reaches the port of the female mold 6 through the middle parts of the four soft rubber arc-shaped strips 803.

[0090] After the forming, if the contact lens adheres to the spherical outer wall of the punch 4, the air cylinder 3 drives the punch 4 to reset. Since the soft rubber arc-shaped strip 803 deforms and fits on the outer wall of the punch 4, during this process, the soft rubber arc-shaped strip 803 removes the contact lens on the outer wall of the punch 4, thereby realizing demolding. Then continue to reset, and the soft rubber arc-shaped strip 803 resets and fits on the spherical outer wall of the punch 4, facilitating subsequent cleaning.

[0091] A plurality of teeth are fixedly connected to the outer wall of the rotating ring 802, a first motor 805 is installed on the outer wall of the sleeve ring 801, a driving gear 806 is installed on the output shaft of the first motor 805, and the driving gear 806 is meshed with the teeth;

[0092] By adopting the above technical solution, the output shaft of the first motor 805 drives the driving gear 806 to rotate, and the driving gear 806 engages with the teeth, thereby driving the rotating ring 802 and the soft rubber arc strip 803 to rotate. The soft rubber arc strip 803 rubs against the outer wall of the punch 4, and the dirt is cleaned into the groove of the soft rubber arc strip 803. The soft rubber arc strip 803 is deformable, so the soft rubber arc strip 803 can be manually opened to clean the dirt in the groove inside. The through hole 804 is set to be used in conjunction with the airflow blowing structure.

[0093] A connecting rod 809 is fixedly connected to the outer wall of the collar 801, a moving groove 206 is provided on one side of the support frame 201, the connecting rod 809 is slidably connected to the inner wall of the moving groove 206, a first spring 808 is installed inside one end of the connecting rod 809, and a limiting rod 807 is slidably connected to one end of the connecting rod 809, the first spring 808 is located at the top of the limiting rod 807, a limiting groove 2060 is provided on the inner wall of the moving groove 206, and the limiting rod 807 and the limiting groove 2060 are mutually limited;

[0094] The tension of the first spring 808 keeps the limiting rod 807 and the limiting groove 2060 in a limited state. When the die 6 needs to be cleaned, the sliding limiting rod 807 releases the limit, the punch 4 drives the cleaning assembly 8 to move, and the cleaning assembly 8 moves along the moving groove 206 to the surface of the die 6. The cleaning assembly 8 runs to clean the punch 4 and the die 6 at the same time.

[0095] Embodiment 4

[0096] like Figures 8 - 9 As shown, the rack 7 is fixedly connected to the moving frame 207, and the oscillating structure includes a second spring 10 and an elastic ball 11, one end of the second spring 10 is connected to the inner wall of the tube body of the die 6, and the elastic ball 11 is fixedly connected to the other end of the second spring 10;

[0097] By adopting the above technical solution, during the movement of the movable frame 207, the rack 7 is driven to move, the rack 7 engages with the gear 9 to rotate, the gear 9 collides with the elastic ball 11, and the elastic ball 11 cooperates with the second spring 10 to vibrate the spherical shell of the die 6. Firstly, after the injection is completed, the vibration plays a certain role in discharging bubbles. Secondly, after the molding is completed, the rack 7 rises and drives the elastic ball 11 to operate again. The vibration at this time is beneficial to the demolding and discharge of the contact lenses on the die 6.

[0098] The elastic ball 11 is located outside the top of the gear 9. Affected by gravity, the elastic ball 11 is close to the outer wall of the gear 9 and is located below the spherical shell of the female mold 6.

[0099] By adopting the above technical solution, the installation positions of the gear 9, the second spring 10 and the elastic ball 11.

[0100] Embodiment 5

[0101] As Figures 8 - 9 shown, the air flow blowing structure includes a fan blade 12 and a second motor 13. A mounting bracket is fixedly connected to the bottom port of the female mold 6. The second motor 13 is installed on the mounting bracket, and the fan blade 12 is installed on the output shaft of the second motor 13 and is located inside the tube body of the female mold 6.

[0102] By adopting the above technical solution, the output shaft of the second motor 13 drives the fan blade 12 to rotate, and the air flow at the bottom of the female mold 6 flows upward and flows out through the air holes 601. This air flow cooperates with the through holes 804 to blow and clean the surface of the male mold 4. The soft rubber arc-shaped strip 803 is provided with a plurality of through holes 804 that are interconnected. The through holes 804 can be close to the outer wall of the spherical shell of the female mold 6. When the male mold 4 and the female mold 6 are close to each other, the air flow cooperates with the soft rubber arc-shaped strip 803 to clean the male mold 4 and the female mold 6 for the second time. In addition, after the vibration structure vibrates the contact lenses on the female mold 6, it cooperates with the air flow to blow them, facilitating the demolding of the contact lenses on the female mold 6.

[0103] Working principle: When the device starts to work, the liquid injection pipe 5 injects the liquid material required for molding into the space between the female mold 6 and the male mold 4. The female mold 6 and the male mold 4 cooperate with each other to form the raw material into the shape of a contact lens in this space. The cleaning component 8 can demold the contact lenses adhered to the surface of the male mold 4 and can also frictionally clean the dirt on the surface of the male mold 4.

[0104] The spherical shape of the male mold 4 fits with the concave surface of the female mold 6. When the cylinder 3 drives the male mold 4 and the cleaning component 8 to rise into the interior of the female mold 6, it can cooperate with the air flow blowing structure to clean the surface of the male mold 4 and the interior of the female mold 6. When the cylinder 3 drives the male mold 4 to reset, if there are contact lenses attached to the male mold 4, the cleaning component 8 can demold the contact lenses attached to the male mold 4, and then the cleaning component 8 can operate to clean the male mold 4.

[0105] The top of the support component 2 is connected to the rack 7, and the middle of the female mold 6 is rotatably connected to the gear 9. The rack 7 and the gear 9 are meshed with each other. When the third motor 14 adjusts the angle of the support component 2, the oscillation structure in the female mold 6 collides and cooperates with the gear 9, and this collision will generate an impact force on the bottom outer wall of the spherical shell of the female mold 6.

[0106] A plurality of air holes 601 are provided at the edge of the top port of the female mold 6, and an air flow blowing structure is installed at the bottom port. The air flow blows the contact lens through the air holes 601 and cooperates with the action of the oscillation structure to make the formed contact lens detach from the inner wall of the female mold 6, thus completing the demolding process.

[0107] The standard parts used in the present invention can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, details are not described herein again.

[0108] Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

Claims

1. A contact lens molding device, comprising a frame (1) and a liquid injection pipe (5), characterized in that: The top ends of the frame (1) are respectively provided with rotation grooves, and a support assembly (2) is rotatably connected between the two rotation grooves; a third motor (14) is installed on an outer wall on one side of the top of the frame (1), and the third motor (14) is used to drive the support assembly (2); A cylinder (3) is installed on the top of the support assembly (2), and a guide structure for guiding the injection pipe (5) to move is provided at one end of the support assembly (2); The output end of the cylinder (3) is connected to a punch (4), the outer wall of the punch (4) is provided with a cleaning component (8), the cleaning component (8) is provided with a deformable rubber structure at the spherical end of the punch (4), and the cleaning component (8) is used to clean the spherical surface of the punch (4); A concave mold (6) is installed at the bottom of the support assembly (2), and the two injection tubes (5) are arranged on the outside of the convex mold (4). In an initial state, the bottom ports of the injection tubes (5) face the top ports of the concave mold (6), and the concave mold (6) and the convex mold (4) cooperate with each other to shape the contact lens; The top of the support assembly (2) is connected to a rack (7), the middle of the die (6) is rotatably connected to a gear (9), and the rack (7) and the gear (9) are meshed with each other; The top of the concave mold (6) is provided with a spherical shell, the bottom of the concave mold (6) is provided with a tube body, and an oscillating structure is installed on the inner wall of the tube body of the concave mold (6); After the third motor (14) adjusts the angle of the support assembly (2), the oscillating structure and the gear (9) collide and cooperate with each other to collide with the bottom outer wall of the spherical shell of the concave mold (6), thereby demoulding the contact lens attached to the inner wall of the concave mold (6); A plurality of air holes (601) are provided at the edge of the top port of the concave mold (6), and an airflow blowing structure is installed at the bottom port of the concave mold (6). The airflow blows the contact lens through the air holes (601), and the contact lens is demoulded in cooperation with the oscillation structure.

2. A contact lens molding device as claimed in claim 1, characterized in that: The support assembly (2) comprises a support frame (201), and a first ring (202) and a second ring (203) are fixedly connected to both sides of the support frame (201), and the first ring (202) and the second ring (203) are rotatably connected to the inner wall of the rotating groove of the frame (1), and the output shaft of the third motor (14) is connected to the middle part of the second ring (203).

3. A contact lens molding device as claimed in claim 2, characterized in that: The inner side of the support frame (201) is slidably connected to a moving frame (207), the top of the male die (4) is fixedly connected to the moving frame (207), both ends of the moving frame (207) are respectively provided with sliding grooves, one end of the support frame (201) close to the moving frame (207) is provided with two inclined grooves (204), the two inclined grooves (204) are symmetrical on the support frame (201), and the bottom of the support frame (201) is fixedly connected to a connecting frame (205), and the connecting frame (205) is used to install and fix the female die (6); A connecting block (501) is slidably connected between the inclined groove (204) and the sliding groove of the movable frame (207), and the top of the injection pipe (5) is fixedly connected to one end of the connecting block (501).

4. A contact lens molding device as claimed in claim 3, characterized in that: The cleaning assembly (8) comprises a sleeve (801), wherein the sleeve (801) is sleeved on the outer wall of the punch (4), a rotating ring (802) is rotatably connected to the outer wall of the sleeve (801), and four soft rubber arc strips (803) are connected to the outer wall of the rotating ring (802).

5. A contact lens molding device as claimed in claim 4, characterized in that: The soft rubber arc strip (803) is made of soft rubber material, a notch is provided on one side of the soft rubber arc strip (803) close to the punch (4), and a plurality of through holes (804) are provided on the outer wall of the soft rubber arc strip (803).

6. A contact lens molding device as claimed in claim 5, characterized in that: A plurality of teeth are fixedly connected to the outer wall of the rotating ring (802), a first motor (805) is installed on the outer wall of the sleeve ring (801), a driving gear (806) is installed on the output shaft of the first motor (805), and the driving gear (806) is meshed with the teeth.

7. A contact lens molding device as claimed in claim 6, characterized in that: A connecting rod (809) is fixedly connected to the outer wall of the collar (801), a movable groove (206) is provided on one side of the support frame (201), and the connecting rod (809) is slidably connected to the inner wall of the movable groove (206), a first spring (808) is installed inside one end of the connecting rod (809), and a limiting rod (807) is slidably connected inside one end of the connecting rod (809), the first spring (808) is located at the top of the limiting rod (807), and a limiting groove (2060) is provided on the inner wall of the movable groove (206), and the limiting rod (807) and the limiting groove (2060) are mutually limited.

8. A contact lens molding device as claimed in claim 7, characterized in that: The rack (7) is fixedly connected to the movable frame (207); the oscillating structure comprises a second spring (10) and an elastic ball (11); one end of the second spring (10) is connected to the inner wall of the tube body of the die (6); and the elastic ball (11) is fixedly connected to the other end of the second spring (10).

9. A contact lens molding device as claimed in claim 8, characterized in that: The elastic ball (11) is located outside the top of the gear (9). The elastic ball (11) is close to the outer wall of the gear (9) due to the influence of gravity. The elastic ball (11) is located below the spherical shell of the die (6).

10. A contact lens molding device as claimed in claim 9, characterized in that: The airflow blowing structure comprises a fan blade (12) and a second motor (13); a mounting frame is fixedly connected to the bottom port of the die (6); the second motor (13) is mounted on the mounting frame; and the fan blade (12) is mounted on the output shaft of the second motor (13) and is located inside the tube body of the die (6).

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