Lens forming processing device

Abstract

The utility model relates to a lens forming processing device. The lens forming processing device comprises a controller, a die, a rack, a rotating mechanism, a forming mechanism, a lower die feeding mechanism, an upper die feeding mechanism and a discharging mechanism, a lower mold feeding station, an injection molding station, an upper mold feeding station and a discharging station are sequentially arranged on the machine frame in the circumferential direction. The forming mechanisms are circumferentially and uniformly distributed on the rotating mechanism, and the rotating mechanism drives the forming mechanisms to sequentially pass through the stations and circulate; the forming mechanism comprises a forming seat, a lower die seat, an upper die seat and a pressing driving part, the lower die seat slides up and down relative to the forming seat, and the pressing driving part drives the upper die seat to move relative to the lower die seat; a guide assembly is arranged on the machine frame, and the guide assembly, the lower die base and the rotating mechanism are matched to eject the die out of the forming base at the discharging station. The internal stress can be eliminated in the lens forming process, the machining and forming period of the shaped lens is effectively shortened, the continuity is high, and the efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to lens processing technical field especially relates to lens forming processing device. BACKGROUND

[0002] At present, the forming process of plastic lens is mainly injection molding, and the hot material enters the mold and is rapidly cooled and plasticized in the injection molding process, and the subsequent hot material is still continuously injected into the mold, which can cause shear stress between the front and rear materials, in addition, due to the large pressure of material injection, the molecular orientation in the plasticizing process is not the same, which can cause the product to store a large internal stress. In order to eliminate the internal stress, a stress relief process is usually needed after injection molding. This makes the existing plastic lens forming cycle long, the production process complicated and the efficiency low. UTILITARY MODEL

[0003] The utility model discloses a kind of lens forming processing devices, which can eliminate internal stress in lens forming process, effectively shorten the processing cycle of plastic lens, and is strong in continuity, high efficiency.

[0004] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0005] A kind of lens forming processing device, it includes:

[0006] A plurality of molds, including lower die and upper die;

[0007] Frame, the frame is equipped with lower die feeding station, injection station, upper die feeding station and discharge station in turn along circumferential direction;

[0008] Rotary mechanism, it is set on the frame;

[0009] A plurality of forming mechanisms, it is uniformly distributed on the rotary mechanism, and the rotary mechanism drives forming mechanism to pass through lower die feeding station, injection station, upper die feeding station and discharge station in turn and circulate;The forming mechanism includes forming seat, lower die seat, upper die seat and lower pressure driving part, the forming seat is locked on rotary mechanism, for positioning lower die and upper die;Lower die seat slides up and down relative to forming seat, and the lower pressure driving part drives upper die seat to move relative to lower die seat;Frame is equipped with guide assembly, and the guide assembly, lower die seat and rotary mechanism cooperate to eject mold from discharge station to forming seat;Heating element is equipped on the forming seat;Rotary mechanism is also equipped with preheating mechanism for heating upper die seat and / or lower die seat;

[0010] Lower die feeding mechanism, it is set in lower die feeding station, for feeding lower die to forming seat located in lower die feeding station;

[0011] The upper die feeding mechanism is arranged in the upper die feeding station and used for feeding the upper die to the forming seat in the upper die feeding station.

[0012] The discharging mechanism is arranged in the discharging station and used for discharging the mold from the forming mechanism.

[0013] The controller is connected with the rotating mechanism, the pressing driving element, the heating element, the preheating mechanism, the lower die feeding mechanism, the upper die feeding mechanism and the discharging mechanism.

[0014] The rotating mechanism comprises a rotating table and a rotating motor, and the rotating motor is connected with the controller; the rotating table is rotationally connected with the frame, and the outer edge of the rotating table is provided with a gear ring; the seat body of the rotating motor is mounted on the frame, and the output shaft of the rotating motor is provided with a first gear, which is engaged with the gear ring.

[0015] An encoder is further arranged, and the seat body of the encoder is mounted on the frame, the rotating shaft of the encoder is provided with a second gear, which is engaged with the gear ring, and the encoder is connected with the controller.

[0016] The forming seat is provided with a positioning groove, the lower die seat is slidingly connected in the positioning groove, the bottom of the lower die seat is provided with an extension rod, and the bottom of the extension rod is provided with a roller matched with the guide assembly; the pressing driving element is a cylinder, the upper die seat is arranged at the end of the pushing rod of the pressing driving element, and a buffer spring is arranged between the upper die seat and the pushing rod of the pressing driving element.

[0017] The guide assembly has a discharging section, a lower die feeding section, an injection molding section and an upper die feeding section connected in sequence in the ring direction, the height of the discharging section is greater than that of the lower die feeding section, the height of the lower die feeding section is greater than that of the injection molding section, and the height of the injection molding section is greater than that of the upper die feeding section; the discharging section is located in the discharging station, the lower die feeding section is located in the lower die feeding station, the injection molding section is located in the injection molding station, and the upper die feeding section is located in the upper die feeding station; the roller travels in the discharging section, the lower die feeding section, the injection molding section and the upper die feeding section.

[0018] The frame is provided with a lower die positioning station; the lower die feeding mechanism comprises a lower die feeding driving assembly and at least one lower die clamping jaw, the lower die feeding driving assembly drives the lower die clamping jaw to reciprocate between the lower die positioning station and the lower die feeding station; and the lower die feeding driving assembly and the lower die clamping jaw are connected with the controller.

[0019] The frame is provided with an upper mold positioning station; the upper mold feeding mechanism includes an upper mold positioning seat, an upper mold avoidance drive assembly, an upper mold flipping assembly, and an upper mold gripper. The upper mold avoidance drive assembly drives the upper mold positioning seat to move back and forth between a first position and a second position. When the upper mold positioning seat is in the first position, the upper mold positioning seat is placed in the upper mold positioning station, or the upper mold positioning seat is connected to and connected to the upper mold positioning station. The upper mold flipping assembly drives the upper mold gripper to rotate. When the upper mold flipping assembly does not drive the upper mold gripper to flip, the upper mold gripper is placed in the second position. When the upper mold flipping assembly drives the upper mold gripper to flip, the upper mold gripper is placed in the upper mold feeding station. The upper mold avoidance drive assembly, the upper mold flipping assembly, and the upper mold gripper are connected to a controller.

[0020] It also includes a buffer assembly, which includes a buffer cylinder, an extension rod, and a buffer component. The buffer cylinder is connected to a controller. The buffer cylinder drives the extension rod to rise and fall. The buffer component is connected to the extension rod. The buffer component is placed at the upper mold loading station and is not higher than the upper mold grippers. The forming seat is provided with several limiting posts for limiting the upper mold. The buffer component is offset from the limiting posts.

[0021] The discharge mechanism includes a discharge turntable, a guide, and a discharge conveying assembly. The discharge turntable has several material-receiving notches evenly distributed around its outer periphery. These notches are adapted to the shape of the mold. The discharge turntable drives the material-receiving notches to move sequentially to the discharge station and the inlet end of the discharge conveying assembly, circulating the mechanism. The guide is located on the outer periphery of the discharge turntable and is coaxial with it. The guide, discharge turntable, and material-receiving notches work together to push the mold at the discharge station to the inlet end of the discharge conveying assembly. The discharge conveying assembly includes a mounting frame, a discharge motor, and a circulating transmission component. The circulating transmission component is mounted on the mounting frame, and the discharge motor drives the circulating transmission component. Several levers are evenly distributed on the circulating transmission component. The mounting frame has a guide edge. The guide edge and the circulating transmission component work together to form a discharge channel. The levers, circulating transmission component, and guide edge work together to push the mold on the discharge turntable into the discharge channel. The discharge turntable and the discharge motor are connected to a controller.

[0022] It also includes an automatic raw material extruder, an automatic upper die feeding line, and an automatic lower die feeding line. The automatic raw material extruder is provided. The automatic upper die feeding line is used to continuously supply the upper die to the upper die feeding mechanism. The automatic lower die feeding line is used to continuously supply the lower die to the lower die feeding mechanism. Both the automatic upper die feeding line and the automatic lower die feeding line are equipped with heating modules. The automatic raw material extruder, the automatic upper die feeding line, the automatic lower die feeding line, and the heating modules are connected to a controller.

[0023] By adopting the above solution, this invention first loads the lower mold using a lower mold feeding mechanism, then injects raw material into the lower mold, followed by loading the upper mold using an upper mold feeding mechanism. Subsequently, the upper and lower molds are compressed by a forming mechanism. Simultaneously, the forming mechanism heats the mold during compression, eliminating internal stress in the raw material during the lens compression process. After the lens is formed, with the continuous operation of the rotating mechanism, the lower mold base, in conjunction with the guide assembly, directly ejects the mold carrying the lens from the forming base at the discharge station. The discharge mechanism can easily remove the mold after molding, completing the unloading process. Internal stress is eliminated during the molding process, eliminating the need for a stress-relief step after product formation, effectively shortening the processing cycle of the shaped lens. Furthermore, this invention utilizes a rotating mechanism to carry several forming mechanisms in a cyclical manner, enabling continuous operation and higher efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the present invention.

[0025] Figure 2 This is a top view of the present invention.

[0026] Figure 3 This is a reference diagram showing the layout of this utility model.

[0027] Figure 4 A schematic diagram of the assembly of the rotating mechanism and the forming mechanism.

[0028] Figure 5 This is a schematic diagram of the forming mechanism.

[0029] Figure 6 This is a schematic diagram of the lower mold base.

[0030] Figure 7 This is a schematic diagram of the guide component.

[0031] Figure 8 This is a schematic diagram of the lower mold feeding mechanism.

[0032] Figure 9 This is a diagram showing the working state of the lower mold feeding mechanism.

[0033] Figure 10 This is a schematic diagram of the upper mold positioning seat and the upper mold avoidance drive assembly.

[0034] Figure 11 This is a schematic diagram of the upper mold flipping assembly, the upper mold gripper, and the buffer assembly.

[0035] Figure 12 This is a diagram showing the working state of the upper mold feeding mechanism.

[0036] Figure 13 This is a schematic diagram of the discharge mechanism.

[0037] Marker explanation:

[0038] Frame 10, guide assembly 11, discharge section 111, lower mold loading section 112, injection section 113, upper mold loading section 114;

[0039] Rotating mechanism 20, turntable 21, gear ring 211, rotary motor 22, first gear 221, encoder 23, second gear 231;

[0040] Molding mechanism 30, molding base 31, positioning groove 311, limiting post 312, lower mold base 32, extension rod 321, roller 322, upper mold base 33, pressing drive component 34, buffer spring 341, preheating mechanism 35;

[0041] The lower mold feeding mechanism 40, the lower mold gripper 41, the first lifting cylinder module 42, and the first horizontal cylinder module 43 are included.

[0042] Upper mold feeding mechanism 50, upper mold positioning seat 51, second lifting cylinder module 52, second horizontal cylinder module 53, third lifting cavity module 54, rotary cylinder 55, upper mold gripper 56, buffer cylinder 57, extension rod 58, buffer component 59.

[0043] Discharge mechanism 60, discharge turntable 61, material picking notch 611, guide component 62, discharge conveying assembly 63, mounting frame 631, circulating transmission component 632, lever block 633, guide edge 634;

[0044] Upper mold 71, lower mold 72;

[0045] 81 is an automatic feeding line for the lower die, 82 is an automatic feeding line for the upper die, and 83 is an automatic raw material extruder. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0047] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0048] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0049] In the description of the embodiments of this application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0050] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In the description of the embodiments of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0053] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0054] like Figures 1-13 As shown, this utility model discloses a lens forming and processing device, which includes: a controller, a frame 10, a rotating mechanism 20, a lower mold feeding mechanism 40, an upper mold feeding mechanism 50, a discharge mechanism 60, several forming mechanisms 30, and several molds. The controller adopts a PLC. The molds include a lower mold 72 and an upper mold 71. The frame 10 is provided with a lower mold feeding station, an injection station, an upper mold feeding station, and a discharge station arranged sequentially along the circumference.

[0055] The rotating mechanism 20 includes a turntable 21 and a rotary motor 22. The turntable 21 is rotatably connected to the frame 10, and a gear ring 211 is provided on the outer edge of the turntable 21. The base of the rotary motor 22 is mounted on the frame 10, and a first gear 221 is provided on the output shaft of the rotary motor 22. The first gear 221 meshes with the gear ring 211, and the rotary motor 22 drives the turntable 21 to rotate. The rotary motor 22 is connected to a controller. To ensure the precision control of the rotation of the turntable 21, an encoder 23 is provided. The base of the encoder 23 is mounted on the frame 10, and a second gear 231 is provided on the rotating shaft of the encoder 23. The second gear 231 meshes with the gear ring 211, and the encoder 23 is connected to the controller. The encoder 23 is prior art and will not be described in detail. By detecting the rotation amplitude through the encoder 23, the rotation precision can be effectively controlled, ensuring the realization of the functions of subsequent mechanisms.

[0056] The molding mechanism 30 is evenly distributed around the circumference of the turntable 21, and the rotating mechanism 20 drives the molding mechanism 30 to sequentially pass through the lower mold loading station, the injection station, the upper mold loading station, and the unloading station in a cycle. The molding mechanism 30 includes a molding base 31, a lower mold base 32, an upper mold base 33, and a pressing drive component 34. The molding base 31 is locked onto the turntable 21. The molding base 31 is provided with a positioning groove 311 for positioning and limiting the lower mold 72 and the upper mold 71. Four limiting posts 312 are arranged on the outer periphery of the positioning groove 311, which can limit and guide the upper mold 71 and the lower mold 72. A heating component is also provided on the molding base 31 for heating the mold, the lower mold base 32, and the raw material. This heating component is connected to a controller.

[0057] The lower mold base 32 slides up and down relative to the forming base 31. Specifically, the lower mold base 32 is slidably connected in the positioning groove 311. An extension rod 321 is provided at the bottom of the lower mold base 32, and the extension rod 321 extends out of the forming base 31 and the turntable 21. A roller 322 is provided at the bottom of the extension rod 321. A guide assembly 11 is provided on the frame 10, and the roller 322 travels on the guide assembly 11 to prevent jamming. The guide assembly 11 includes a discharge section 111, a lower mold loading section 112, an injection section 113, and an upper mold loading section 114 connected sequentially in a ring direction. The height of the discharge section 111 is greater than the height of the lower mold loading section 112, the height of the lower mold loading section 112 is greater than the height of the injection section 113, the height of the injection section 113 is greater than the height of the upper mold loading section 114, and the discharge section 111 is located at the discharge station, the lower mold loading section 112 is located at the lower mold loading station, the injection section 113 is located at the injection station, and the upper mold loading section 114 is located at the upper mold loading station. The roller 322 travels through the discharge section 111, the lower mold loading section 112, the injection section 113, and the upper mold loading section 114 in a cycle along the travel direction. The transitions between each section are as smooth as possible or through ramps to avoid excessive height differences in the lower mold base 32.

[0058] The downward pressure drive 34 drives the upper mold base 33 to move relative to the lower mold base 32. The downward pressure drive 34 is a cylinder connected to a controller. The upper mold base 33 is located at the end of the push rod of the downward pressure drive 34, and a buffer spring 341 is provided between the upper mold base 33 and the push rod of the downward pressure drive 34 to avoid rigid collisions that could damage the mold, since lens molds are usually made of glass. Under normal conditions, the downward pressure drive 34 is in a retracted state, and there is a certain distance between the upper mold base 33 and the lower mold base 32 to facilitate mold loading and raw material injection. When compression molding is required, the downward pressure drive 34 extends, and the upper mold base 33 and the lower mold base 32 cooperate to support and press against the mold. A preheating mechanism 35 for heating the upper mold base 33 is also provided on the turntable 21. Under normal conditions, the upper mold base 33 is placed in the position of the preheating mechanism 35 for preheating. With this setting, the upper mold base 33 can be heated uniformly, making temperature control simpler and the structure of the upper mold base 33 simpler, which is beneficial for processing.

[0059] When roller 322 travels in the discharge section 111, the lower mold base 32 can also push the mold out of the positioning groove 311 and the high limiting post 312 of the forming base 31. At this time, the mold can be pushed out of the forming mechanism 30. When roller 322 travels from the discharge section 111 to the lower mold loading section 112, the lower mold base 32 descends a certain distance so that the lower mold 72 loaded by the lower mold loading mechanism 40 can be limited and positioned. When roller 322 travels from the lower mold loading section 112 to the injection section 113, the lower mold base 32 descends a certain distance again to facilitate the extrusion of raw materials into the lower mold. When roller 322 travels from injection section 113 to upper mold loading section 114, lower mold base 32 descends a certain distance to facilitate the insertion of upper mold. Simultaneously, upper mold loading section 114 supports lower mold base 32. When roller 322 travels through upper mold loading section 114 and upper mold 71 has finished loading, upper mold base 33 compresses upper mold 71 to compress and shape the product. After product shaping, roller 322 travels from upper mold loading section 114 to discharge section 111, and the mold carrying the product is ejected, entering the next cycle.

[0060] The lower mold loading mechanism 40 is located at the lower mold loading station and is used to load the lower mold onto the forming seat 31 located at the lower mold loading station. Specifically, a lower mold positioning station is provided on the frame 10 for manual placement of the lower mold or for connection to the automatic lower mold feeding line 81, preferably the latter, to improve the automation process. The lower mold positioning station can be regarded as the outlet of the automatic lower mold feeding line 81, and a baffle is provided at the outlet to intercept the lower mold. The lower mold loading mechanism 40 includes a lower mold loading drive component and a lower mold gripper 41. The lower mold loading drive component drives the lower mold gripper 41 to move back and forth between the lower mold positioning station and the lower mold loading station. In this case, two lower mold grippers 41 are provided, and a transfer platform 21 is also provided on the frame 10. One lower mold gripper 41 grabs the lower mold from the lower mold positioning station to the transfer platform 21, and the other lower mold gripper 41 grabs the lower mold from the transfer platform 21 to the lower mold loading station to improve efficiency. The lower mold loading drive assembly includes a first lifting cylinder module 42 and a first horizontal cylinder module 43. The first lifting cylinder module 42, the first horizontal cylinder module 43 and the lower mold gripper 41 are connected to the controller.

[0061] After the material is loaded into the lower mold, it needs to be injected first, that is, the raw material is extruded into the lower mold. It can be done manually or by using an automatic raw material extruder 83. The latter is preferred. The automatic raw material extruder 83 is connected to a controller.

[0062] The upper mold feeding mechanism 50 is located at the upper mold feeding station and is used to feed the upper mold 71 to the forming seat 31 located at the upper mold feeding station. Specifically, an upper mold positioning station is provided on the frame 10, which is used for manual placement of the upper mold 71 or for docking with the automatic upper mold 71 feeding line, preferably the latter, to improve the automation production process. The upper mold positioning station can be regarded as the outlet end of the automatic upper mold feeding line 82, which is controlled and intercepted by a valve or cylinder connected to a controller. The upper mold feeding mechanism 50 includes an upper mold positioning seat 51, an upper mold avoidance drive assembly, an upper mold flipping assembly, and an upper mold gripper 56. The upper mold avoidance drive assembly includes a second lifting cylinder module 52 and a second horizontal cylinder module 53, which are connected to the controller. The upper mold avoidance drive component drives the upper mold positioning seat 51 to move back and forth between the first position and the second position. When the upper mold positioning seat 51 is in the first position, the upper mold positioning seat 51 is placed in the upper mold positioning station for manual feeding, or the upper mold positioning seat 51 is docked and connected to the upper mold positioning station (the outlet end of the upper mold automatic feeding line 82) for automatic feeding.

[0063] The upper mold flipping assembly drives the upper mold gripper 56 to rotate. It includes a third lifting cavity module 54 and a rotary cylinder 55. The third lifting cavity module 54, the rotary cylinder 55 and the upper mold gripper 56 are connected to a controller. When the upper mold flipping assembly does not drive the upper mold gripper 56 to flip, the upper mold gripper 56 is in the second position, which can grab the upper mold 71 on the upper mold positioning seat 51 located in the second position. After the upper mold 71 is grabbed, the upper mold flipping assembly drives the upper mold gripper 56 to flip. The upper mold gripper 56 flips to the upper mold loading station and unloads the upper mold into the forming seat 31 of the station.

[0064] Because the kinetic energy is relatively large during the flipping process, and to improve efficiency, a buffer assembly is also provided, which includes a buffer cylinder 57, an extension rod 58, and a buffer component 59. The buffer cylinder 57 is connected to a controller. The buffer cylinder 57 drives the extension rod 58 to rise and fall. The buffer component 59 is connected to the extension rod 58 and is always positioned at the upper mold loading station, and is not higher than the upper mold gripper 56. When the upper mold flips to the upper mold loading station, the buffer cylinder 57 rises, causing the upper mold to be unloaded onto the buffer component 59. At this time, the buffer component 59 exceeds the limit post 312, and then the buffer cylinder 57 descends, causing the upper mold to fall into the limit post 312 for restraint. As the turntable 21 rotates, the upper mold can detach from the buffer component 59 and fall into the positioning groove 311 due to the constraint of the limit post 312. The buffer component 59 is a fork plate, and the buffer component 59 and the limit post 312 are offset to avoid interference.

[0065] The discharge mechanism 60 is located at the discharge station and is used to remove the mold located at the discharge station from the forming mechanism 30. It includes a discharge turntable 61, a guide 62, and a discharge conveying assembly 63. The discharge turntable 61 is connected to a controller. Several material-receiving notches 611 are evenly distributed around the outer periphery of the discharge turntable 61. These notches 611 are adapted to the shape of the mold, and the discharge turntable 61 drives the material-receiving notches to move sequentially to the discharge station and the inlet end of the discharge conveying assembly 63, circulating them in a loop. The guide 62 is located on the outer periphery of the discharge turntable 61, and the two are coaxially arranged. The guide 62, the discharge turntable 61, and the material-receiving notches 611 work together to push the mold located at the discharge station to the inlet end of the discharge conveying assembly 63.

[0066] The discharge conveying assembly 63 includes a mounting frame 631, a discharge motor, and a circulating transmission component 632. The discharge motor is connected to a controller. The circulating transmission component 632 uses a pulley set or a chain wheel set and is mounted on the mounting frame 631. The discharge motor 634 drives the circulating transmission component 632. Several levers 633 are evenly distributed on the circulating transmission component 632, and a guide edge 634 is provided on the mounting frame 631. The guide edge 634 and the circulating transmission component 632 cooperate to form a discharge channel. The levers 633, the circulating transmission component 632, and the guide edge 634 cooperate to push the mold in the picking notch 611 at the inlet end of the discharge conveying assembly 63 into the discharge channel, completing the discharge action. The discharge channel can be connected to a finished product conveyor line, or the finished product can be manually removed from the discharge channel and stacked on a pallet.

[0067] The key to this invention lies in its method of first feeding the lower mold via a lower mold feeding mechanism 40, then injecting raw material into the lower mold, followed by feeding the upper mold via an upper mold feeding mechanism 50, and finally extruding the upper and lower molds via a forming mechanism 30. Simultaneously, the forming mechanism 30 heats the molds during extrusion, thus eliminating internal stress in the raw material during compression molding into a lens. Furthermore, heating modules can be installed on both the upper mold automatic feeding line 82 and the lower mold automatic feeding line 81 to preheat the upper and lower molds; preferably, these heating modules are connected to a controller. Preheating the upper and lower molds further eliminates internal stress in the product. After the lens is formed, with the continuous operation of the rotating mechanism 20, the lower mold base 32, in conjunction with the guide assembly 11, directly ejects the mold carrying the lens from the forming base 31 at the discharge station. The discharge mechanism 60 can then easily remove the mold from the forming mechanism 30, completing the unloading process. Since internal stress is eliminated during the forming process, no further stress relief is required after product formation, effectively shortening the processing cycle of the molded lens. In addition, this utility model can achieve continuous operation and higher efficiency by using a rotating mechanism 20 to carry several forming mechanisms 30 in a cyclical manner.

[0068] The above description is merely an embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A lens forming and processing apparatus, characterized in that, include: Several molds, including a lower mold and an upper mold; The frame is provided with a lower mold loading station, an injection station, an upper mold loading station and an unloading station arranged in sequence along the circumference; A rotating mechanism is mounted on the frame; Several molding mechanisms are evenly distributed around the circumference of the rotating mechanism, and the rotating mechanism drives the molding mechanisms to sequentially pass through the lower mold loading station, the injection station, the upper mold loading station, and the discharge station in a cycle. Each molding mechanism includes a molding seat, a lower mold seat, an upper mold seat, and a pressing drive component. The molding seat is locked onto the rotating mechanism and is used to position the lower mold and the upper mold. The lower mold seat slides up and down relative to the molding seat, and the pressing drive component drives the upper mold seat to move relative to the lower mold seat. A guide assembly is provided on the frame, and the guide assembly, the lower mold seat, and the rotating mechanism cooperate to eject the mold from the molding seat at the discharge station. A heating element is provided on the molding seat, and the rotating mechanism is also provided with a heating element for the upper mold seat and / or a preheating mechanism. A lower mold feeding mechanism is provided at the lower mold feeding station and is used to feed the lower mold onto the forming seat located at the lower mold feeding station; The upper mold feeding mechanism is located at the upper mold feeding station and is used to feed the upper mold to the forming seat located at the upper mold feeding station; A discharge mechanism is provided at the discharge station and is used to remove the mold located at the discharge station from the forming mechanism; The controller is connected to the rotating mechanism, the pressing drive, the heating element, the preheating mechanism, the lower mold feeding mechanism, the upper mold feeding mechanism, and the discharge mechanism.

2. The lens forming and processing apparatus according to claim 1, characterized in that: The rotating mechanism includes a turntable and a rotary motor, the rotary motor being connected to a controller; the turntable is rotatably connected to a frame, and a gear ring is provided on the outer edge of the turntable; the base of the rotary motor is mounted on the frame, and a first gear is provided on the output shaft of the rotary motor, the first gear meshing with the gear ring.

3. The lens forming and processing apparatus according to claim 2, characterized in that: It also includes an encoder, the encoder housing is mounted on the frame, and the encoder's rotating shaft is provided with a second gear, which meshes with a gear ring; the encoder is connected to a controller.

4. The lens forming and processing apparatus according to claim 1, characterized in that: The forming seat is provided with a positioning groove; the lower mold seat is slidably connected in the positioning groove, the bottom of the lower mold seat is provided with an extension rod, and the bottom of the extension rod is provided with a roller that cooperates with the guide assembly; the pressing drive is a cylinder, the upper mold seat is located at the end of the push rod of the pressing drive, and a buffer spring is provided between the upper mold seat and the push rod of the pressing drive.

5. The lens forming and processing apparatus according to claim 4, characterized in that: The guide assembly has a discharge section, a lower mold loading section, an injection section, and an upper mold loading section connected in a ring-shaped sequence. The height of the discharge section is greater than the height of the lower mold loading section, the height of the lower mold loading section is greater than the height of the injection section, and the height of the injection section is greater than the height of the upper mold loading section. The discharge section is located at the discharge station, the lower mold loading section is located at the lower mold loading station, the injection section is located at the injection station, and the upper mold loading section is located at the upper mold loading station. The roller travels between the discharge section, the lower mold loading section, the injection section, and the upper mold loading section.

6. The lens forming and processing apparatus according to claim 1, characterized in that: The frame is provided with a lower mold positioning station; the lower mold loading mechanism includes a lower mold loading drive component and at least one lower mold clamping claw, the lower mold loading drive component drives the lower mold clamping claw to move back and forth between the lower mold positioning station and the lower mold loading station; the lower mold loading drive component and the lower mold clamping claw are connected to a controller.

7. The lens forming and processing apparatus according to claim 1, characterized in that: The frame is provided with an upper mold positioning station; the upper mold feeding mechanism includes an upper mold positioning seat, an upper mold avoidance drive assembly, an upper mold flipping assembly, and an upper mold gripper. The upper mold avoidance drive assembly drives the upper mold positioning seat to move back and forth between a first position and a second position. When the upper mold positioning seat is in the first position, the upper mold positioning seat is placed in the upper mold positioning station, or the upper mold positioning seat is connected to and connected to the upper mold positioning station. The upper mold flipping assembly drives the upper mold gripper to rotate. When the upper mold flipping assembly does not drive the upper mold gripper to flip, the upper mold gripper is placed in the second position. When the upper mold flipping assembly drives the upper mold gripper to flip, the upper mold gripper is placed in the upper mold feeding station. The upper mold avoidance drive assembly, the upper mold flipping assembly, and the upper mold gripper are connected to a controller.

8. The lens forming and processing apparatus according to claim 7, characterized in that: It also includes a buffer assembly, which includes a buffer cylinder, an extension rod, and a buffer component. The buffer cylinder is connected to a controller. The buffer cylinder drives the extension rod to rise and fall. The buffer component is connected to the extension rod. The buffer component is placed at the upper mold loading station and is not higher than the upper mold grippers. The forming seat is provided with several limiting posts for limiting the upper mold. The buffer component is offset from the limiting posts.

9. The lens forming and processing apparatus according to claim 1, characterized in that: The discharge mechanism includes a discharge turntable, a guide, and a discharge conveying assembly. The discharge turntable has several material-receiving notches evenly distributed around its outer periphery. These notches are adapted to the shape of the mold. The discharge turntable drives the material-receiving notches to move sequentially to the discharge station and the inlet end of the discharge conveying assembly, circulating the mechanism. The guide is located on the outer periphery of the discharge turntable and is coaxial with it. The guide, discharge turntable, and material-receiving notches work together to push the mold at the discharge station to the inlet end of the discharge conveying assembly. The discharge conveying assembly includes a mounting frame, a discharge motor, and a circulating transmission component. The circulating transmission component is mounted on the mounting frame, and the discharge motor drives the circulating transmission component. Several levers are evenly distributed on the circulating transmission component. The mounting frame has a guide edge. The guide edge and the circulating transmission component work together to form a discharge channel. The levers, circulating transmission component, and guide edge work together to push the mold on the discharge turntable into the discharge channel. The discharge turntable and the discharge motor are connected to a controller.

10. The lens forming and processing apparatus according to claim 1, characterized in that: It also includes an automatic raw material extruder, an automatic upper die feeding line, and an automatic lower die feeding line. The automatic raw material extruder is provided. The automatic upper die feeding line is used to continuously supply the upper die to the upper die feeding mechanism. The automatic lower die feeding line is used to continuously supply the lower die to the lower die feeding mechanism. Both the automatic upper die feeding line and the automatic lower die feeding line are equipped with heating modules. The automatic raw material extruder, the automatic upper die feeding line, the automatic lower die feeding line, and the heating modules are connected to a controller.

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