Lens casting machine

Abstract

The utility model discloses a lens casting machine which comprises at least two conveying belts and at least two corresponding casting plates, the conveying belts are arranged in parallel to convey lens molds, and the casting plates are arranged in the conveying direction of the conveying belts to feed, discharge and cast the lens molds on the corresponding conveying belts. Wherein each conveying belt comprises a feeding area and a discharging area, the feeding areas of the at least two conveying belts are arranged in a staggered mode so that the corresponding pouring plates can be fed, and the discharging areas of the at least two conveying belts are arranged in a staggered mode so that the corresponding pouring plates can be discharged. When the lens casting machine is used for casting a lens mold, the at least two conveying belts and the at least two corresponding casting plates are simultaneously matched to operate, and the feeding areas and the discharging areas on the conveying belts are arranged in a staggered manner, so that the orderly feeding, discharging and casting work between the casting plates can be ensured, and the production efficiency is improved. Therefore, the processing efficiency of the lens mold can be effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pouring machines, and particularly relates to a lens pouring machine. Background Art

[0002] Resin lenses have become the mainstream lenses in the glasses market due to their many advantages such as light weight, good light transmittance, strong impact resistance, not easy to break, and can meet various special needs. During the manufacturing process of resin lenses, processes such as monomer preparation, mold pouring, and polymerization curing are required. Among them, during the pouring process, liquid monomers need to be injected into the lens mold that has been assembled.

[0003] Refer to Figure 1 , the lens mold usually includes an A mold 101, a B mold 102, and a tape 103. There is a mold cavity between the A mold 101 and the B mold 102. After one end of the tape 103, as the root, is bonded to the A mold 101 and the B mold 102, it is then bonded around the circumferential surfaces of the A mold 101 and the B mold 102 to make the mold cavity in a closed state.

[0004] The lens pouring machine is an important processing equipment in the resin lens pouring process. In the prior art, the lens pouring machine usually only has one pouring station, resulting in a low processing efficiency of resin lenses and unable to meet the demand for batch production of lenses.

[0005] Therefore, in view of the above technical problems, it is necessary to provide a lens pouring machine. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a lens pouring machine, which can solve the problem of low processing efficiency of lenses at a single pouring station.

[0007] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0008] A lens pouring machine includes at least two conveyor belts and at least two corresponding pouring plates. The conveyor belts are arranged in parallel to convey the lens molds. The at least two pouring plates are arranged along the conveying direction of the conveyor belts to load, unload, and pour the lens molds on the corresponding conveyor belts.

[0009] Among them, the conveyor belt includes a loading area and an unloading area. The loading areas of the at least two conveyor belts are arranged in a staggered manner to respectively supply materials for the corresponding pouring plates, and the unloading areas of the at least two conveyor belts are arranged in a staggered manner to respectively unload materials for the corresponding pouring plates.

[0010] In one or more embodiments of the present utility model, the pouring plate includes a material taking mechanism and a pouring mechanism that cooperate to operate, for loading and unloading the lens mold and pouring, and at least two conveyor belts are located between the material taking mechanism and the pouring mechanism of each pouring plate.

[0011] In one or more embodiments of the present utility model, the pouring plate includes at least two pouring mechanisms, the at least two pouring mechanisms are arranged along the conveying direction of the conveyor belt, and the material taking mechanism can be controllably moved to the positions of the at least two pouring mechanisms to cooperate to complete the loading and unloading of the lens molds of the at least two pouring mechanisms.

[0012] In one or more embodiments of the present utility model, the material taking mechanism includes a three-axis moving assembly and a rotating material taking assembly installed at the output end of the three-axis moving assembly. The rotating material taking assembly includes a rotating driving part and two suction heads, and the rotating driving part drives the two suction heads to alternate positions between the loading position and the pouring position; wherein, when the suction head is at the loading position, it faces the conveyor belt, and when the suction head is at the pouring position, it faces the pouring mechanism.

[0013] In one or more embodiments of the present utility model, it further includes a first vision camera for obtaining the liquid level height in the lens mold, and a second vision camera for obtaining the position of the tape injection port of the lens mold. One first vision camera and one second vision camera are correspondingly arranged for each pouring mechanism.

[0014] In one or more embodiments of the present utility model, a guiding assembly is provided at the input ends of two adjacent conveyor belts, and the guiding assembly is used to guide the lens mold onto different conveyor belts.

[0015] In one or more embodiments of the present utility model, the guiding assembly includes a driving part and a guiding plate. The driving part is installed between two adjacent conveyor belts, and the driving part drives the guiding plate to move to an avoidance position and a blocking position;

[0016] When the guiding plate is in the avoidance position, the lens mold is located on one of the conveyor belts; when the guiding plate is in the blocking position, the lens mold is abutted and driven to another adjacent conveyor belt.

[0017] In one or more embodiments of the present utility model, the conveyor belt is provided with a separation position to form the loading area and the unloading area. The separation position of each conveyor belt cooperates with the position of the corresponding pouring plate, and a positioning baffle is installed at the separation position to block the lens mold in the loading area from directly entering the unloading area.

[0018] In one or more embodiments of the present utility model, the pouring mechanism includes an adsorption component for fixing the lens mold, a tape tearing component and a tape pasting component installed on the same side of the adsorption component, a liquid injection component installed on the other side of the adsorption component, and a rotating component for driving the adsorption component to rotate.

[0019] In one or more embodiments of the present utility model, the pouring mechanism further includes a correction component, and the correction component is used to calibrate the lens mold on the adsorption component to a preset position.

[0020] Compared with the prior art, when the lens pouring machine of the present utility model pours the lens mold, at least two conveyor belts and at least two corresponding pouring plates operate in cooperation at the same time, and by using the dislocation arrangement of the loading area and the unloading area on the conveyor belt, it can ensure that the loading, unloading and pouring operations between the pouring plates do not interfere with each other and operate in an orderly manner. Therefore, the processing efficiency of the lens mold can be effectively improved. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the lens mold in the background technology of the present utility model;

[0023] Figure 2 It is an axonometric view of the lens pouring machine in one embodiment of the present utility model;

[0024] Figure 3 It is a top view of the lens pouring machine in one embodiment of the present utility model;

[0025] Figure 4 It is a side view of the lens pouring machine in one embodiment of the present utility model;

[0026] Figure 5 For Figure 2 The enlarged schematic view at A in

[0027] Figure 6 For Figure 3 The enlarged schematic view at B in

[0028] Main reference numeral description:

[0029] 1. Conveyor belt; 11. Loading area; 12. Unloading area; 2. Material taking mechanism; 21. Three-axis moving component; 22. Rotary material taking component; 221. Rotary driving part; 222. Suction head; 3. Pouring mechanism; 31. Suction component; 32. Tape tearing component; 33. Tape pasting component; 34. Liquid injection component; 35. Rotating component; 36. Correction component; 361. Correction driving part; 362. Contact part; 4. First vision camera; 5. Second vision camera; 6. Positioning baffle; 7. Guide plate; 101. Mold A; 102. Mold B; 103. Tape. Detailed implementation manners

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Refer to Figure 2 and Figure 3 In an embodiment of the present utility model, a lens pouring machine includes at least two conveyor belts 1 and corresponding at least two pouring plates. The conveyor belts 1 are arranged in parallel to convey lens molds, and the at least two pouring plates are arranged along the conveying direction of the conveyor belts 1 to load and unload and pour the lens molds on the corresponding conveyor belts 1.

[0032] Among them, refer to Figure 2 and Figure 3 The conveyor belt 1 includes a loading area 11 and an unloading area 12. The loading areas 11 of the at least two conveyor belts 1 are arranged in a staggered manner to respectively supply materials for the corresponding pouring plates, and the unloading areas 12 of the at least two conveyor belts 1 are arranged in a staggered manner to respectively supply materials for the corresponding pouring plates to unload.

[0033] In this embodiment, taking the setting of two conveyor belts 1 and two pouring plates as an example to make an exemplary description of the lens pouring machine of the present application, this is not a limitation to the present application. In other embodiments, the number of conveyor belts 1 and pouring plates can also be three, four or even more, and each conveyor belt 1 operates in cooperation with a corresponding pouring plate.

[0034] During operation, the lens mold is placed on the loading area 11 of the conveyor belt 1 by a staff member or mechanical equipment. Then, the pouring plate obtains the lens mold from the loading area 11 of the corresponding conveyor belt 1, pours liquid into the lens mold, seals the lens mold, and places the poured lens mold on the unloading area 12 of the corresponding conveyor belt 1, so that the lens mold enters the next process.

[0035] Reference Figure 2 and Figure 3 , the pouring plate includes a material taking mechanism 2 and a pouring mechanism 3 that operate in cooperation to load and unload the lens mold and perform pouring. At least two conveyor belts 1 are located between the material taking mechanism 2 and the pouring mechanism 3 of each pouring plate. Among them, the material taking mechanism 2 is configured to obtain the lens mold from the loading area 11 of the conveyor belt 1 and place the lens mold in the corresponding unloading area 12 of the conveyor belt 1. The pouring mechanism 3 is configured to pour liquid into the lens mold and seal the lens mold. The positional arrangements of the material taking mechanism 2, the pouring mechanism 3, and the conveyor belt 1 can effectively save equipment space and ensure the processing efficiency of the lens pouring process.

[0036] Reference Figure 3 , a pouring plate includes at least two pouring mechanisms 3. The at least two pouring mechanisms 3 are arranged along the conveying direction of the conveyor belt 1. The material taking mechanism 2 can be controlled to move to the positions of the at least two pouring mechanisms 3 to cooperate in loading and unloading the lens molds of the at least two pouring mechanisms 3.

[0037] In this embodiment, an example is given of one material taking mechanism 2 cooperating with two pouring mechanisms 3 to operate, which is not a limitation to this application. In other embodiments, it can also be one material taking mechanism 2 corresponding to three, four or other numbers of pouring mechanisms 3, and the material taking mechanism 2 can also be other numbers, such as two, three, etc.

[0038] During operation, the material taking mechanism 2 sequentially obtains the lens mold from the loading area 11 of the corresponding conveyor belt 1, then places it in each pouring mechanism 3 according to a set order, and the pouring mechanism 3 completes pouring liquid into the lens mold and sealing the lens mold.

[0039] Specifically, referring to Figure 3 and Figure 4 , the material taking mechanism 2 includes a three-axis moving assembly 21 and a rotating material taking assembly 22 installed at the output end of the three-axis moving assembly 21. The rotating material taking assembly 22 includes a rotating driving member 221 and two suction heads 222. The rotating driving member 221 drives the two suction heads 222 to alternate positions between the loading position and the pouring position; wherein, when the suction head 222 is at the loading position, it faces the conveyor belt 1, and when the suction head 222 is at the pouring position, it faces the pouring mechanism 3.

[0040] The three-axis moving assembly 21 drives the rotary material taking assembly 22 to move, so as to cooperate with the feeding area 11 of the conveyor belt 1 and the pouring mechanism 3. The rotary driving member 221 drives the two suction heads 222 to alternately position between the feeding position and the pouring position, so as to complete the reverse installation of the lens mold. In this embodiment, the extending directions of the two suction heads 222 are vertically arranged. The three-axis moving assembly 21 drives the suction head 222 to move to the feeding position to suck a lens mold, then the rotary driving member 221 drives this suction head 222 to exchange positions with the other suction head 222, and finally places the lens mold at the pouring position of the pouring mechanism 3.

[0041] Referring to Figure 4 and Figure 5 , the pouring mechanism 3 includes a suction assembly 31 for fixing the lens mold, a tape tearing assembly 32 and a tape pasting assembly 33 installed on the same side of the suction assembly 31, a liquid injection assembly 34 installed on the other side of the suction assembly 31, and a rotating assembly 35 for driving the suction assembly 31 to rotate.

[0042] During operation, the material taking mechanism 2 places the obtained lens mold at the suction end of the suction assembly 31 to limit and fix the lens mold. Then the tape tearing assembly 32 approaches the lens mold and tears the tape to expose the pouring port on the lens mold. Then the liquid injection assembly 34 injects resin into the cavity in the lens mold through the pouring port. After filling, the tape pasting assembly 33 approaches and abuts against the circumferential side of the lens mold, and at the same time the rotating assembly 35 drives the lens mold to rotate, so that the tape seals the pouring port of the lens mold. Among them, during the rotation of the lens mold, the tape tearing assembly 32 cooperates to loosen the tape. Since the suction assembly 31, the tape tearing assembly 32, the tape pasting assembly 33, the liquid injection assembly 34 and the rotating assembly 35 are common devices in the art, therefore, the specific structures of them are not described in detail in this application.

[0043] Referring to Figure 2 and Figure 5 , the lens pouring machine of this embodiment further includes a first vision camera 4 for obtaining the liquid level height in the lens mold, and a second vision camera 5 for obtaining the position of the tape injection port of the lens mold. One first vision camera 4 and one second vision camera 5 are correspondingly arranged for each pouring mechanism 3. The first vision camera 4 is installed on the opposite side of the suction assembly 31, so that the first vision camera 4 can photograph and obtain the position of the lens mold on the suction assembly 31. The second vision camera 5 is installed on the side of the liquid injection assembly 34 and is used to obtain the position of the pouring port of the lens mold on the suction assembly 31.

[0044] When pouring the lens, first find the liquid injection port on the lens mold through the second vision camera 5, and then inject liquid into the lens mold through the liquid injection assembly 34. During the liquid injection process, monitor and obtain the liquid level height in the lens mold through the first vision camera 4 until the lens mold is filled with liquid, at which time the liquid injection assembly 34 stops injecting liquid.

[0045] In this embodiment, in order to ensure the pouring accuracy of the lens mold, the pouring mechanism 3 further includes a correction assembly 36, and the correction assembly 36 is used to calibrate the lens mold on the adsorption assembly 31 to a preset position. The preset position refers to the position where the lens mold is installed on the adsorption assembly 31 to facilitate subsequent accurate pouring of liquid. Therefore, before pouring the liquid, the position of the lens mold on the adsorption assembly 31 can be corrected through the correction assembly 36.

[0046] Refer to Figure 5 , the correction assembly 36 includes a correction driving member 361 and two sets of oppositely arranged abutting members 362, and the correction driving member 361 drives the two sets of abutting members 362 to approach or move away from each other. The abutting member 362 includes a mounting seat and an abutting roller rotatably connected to the mounting seat. During correction, the abutting rollers of the two sets of abutting members 362 approach the side of the lens mold to push the lens mold to displace adaptively, so that the lens mold moves to the preset position.

[0047] Refer to Figure 3 and Figure 6 , the conveyor belt 1 is provided with a separation position to form a loading area 11 and an unloading area 12. The separation position of each conveyor belt 1 is matched with the position of the corresponding pouring plate, and a positioning baffle 6 is installed at the separation position to prevent the lens mold in the loading area 11 from directly entering the unloading area 12. Therefore, through the positioning baffle 6, it is possible to prevent the un-poured lens mold in the loading area 11 from directly entering the unloading area 12, thereby avoiding the situation of missed pouring of the lens mold.

[0048] Refer to Figure 3 and Figure 6 , a guiding assembly is provided at the input ends of two adjacent conveyor belts 1, and the guiding assembly is used to guide the lens mold onto different conveyor belts 1.

[0049] Refer to Figure 6 , the guiding assembly includes a driving member and a guiding plate 7. The driving member is installed between two adjacent conveyor belts 1, and the driving member drives the guiding plate 7 to move to an avoidance position and a blocking position. When the guiding plate 7 is in the avoidance position, the lens mold is located on one of the conveyor belts 1; when the guiding plate 7 is in the blocking position, the lens mold is abutted and driven onto another adjacent conveyor belt 1.

[0050] In this embodiment, the guide plate 7 is located above one of the conveyor belts 1, and the guide plate 7 has an inclination angle that allows the lens mold to move to another adjacent conveyor belt 1. When the driving member drives the guide plate 7 to move away from the conveyor belt 1 to the avoidance position, the lens mold is conveyed to the loading position on this conveyor belt 1. When the driving member drives the guide plate 7 to move close to the conveyor belt 1 to the blocking position, the lens mold abuts against the guide plate 7, so that the lens mold is abutted and driven to another adjacent conveyor belt 1.

[0051] When placing the lens mold on the conveyor belt 1, since the guide assembly is provided, the relevant staff does not need to place the lens mold on each conveyor belt 1 separately. Through the cooperation of the guide assembly, the lens mold only needs to be placed on the conveyor belt 1 with the guide plate 7 provided on the top, and the lens mold is diverted by the guide assembly. Therefore, the processing efficiency of the lens can be further improved.

[0052] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0053] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lens casting machine, characterized in that: It comprises at least two conveyor belts (1) and corresponding at least two casting plates, wherein the conveyor belts (1) are arranged in parallel to convey lens molds, and the at least two casting plates are arranged along the conveying direction of the conveyor belts (1) to load and unload and cast lens molds on the corresponding conveyor belts (1); The conveyor belt (1) comprises a loading area (11) and a unloading area (12), the loading areas (11) of the at least two conveyor belts (1) are arranged in a staggered manner to respectively supply loading for corresponding casting plates, and the unloading areas (12) of the at least two conveyor belts (1) are arranged in a staggered manner to respectively supply unloading for corresponding casting plates.

2. The lens casting machine according to claim 1, characterized in that: The casting plate comprises a material taking mechanism (2) and a casting mechanism (3) which operate in coordination with each other and are used for loading and unloading and casting lens molds. The at least two conveyor belts (1) are located between the material taking mechanism (2) and the casting mechanism (3) of each casting plate.

3. The lens casting machine according to claim 2, characterized in that: The casting plate comprises at least two casting mechanisms (3), and the at least two casting mechanisms (3) are arranged along the conveying direction of the conveyor belt (1). The material taking mechanism (2) can be controlled to move to the position of the at least two casting mechanisms (3) to cooperate in completing the loading and unloading of the lens molds of the at least two casting mechanisms (3).

4. The lens casting machine according to claim 2, characterized in that: The material picking mechanism (2) comprises a three-axis moving component (21) and a rotating material picking component (22) installed at the output end of the three-axis moving component (21); the rotating material picking component (22) comprises a rotating driving component (221) and two adsorption heads (222); the rotating driving component (221) drives the two adsorption heads (222) to alternate between a loading position and a pouring position; wherein the adsorption heads (222) face the conveyor belt (1) when at the loading position, and face the pouring mechanism (3) when at the pouring position.

5. The lens casting machine according to claim 2, characterized in that: It also includes a first visual camera (4) for obtaining the height of the liquid level in the lens mold, and a second visual camera (5) for obtaining the position of the lens mold tape injection port, and each of the casting mechanisms (3) is correspondingly provided with a first visual camera (4) and a second visual camera (5).

6. The lens casting machine according to claim 1, characterized in that: A guide assembly is provided at the input end of two adjacent conveyor belts (1), and the guide assembly is used to guide the lens molds to enter different conveyor belts (1).

7. The lens casting machine according to claim 6, characterized in that: The guide assembly comprises a driving member and a guide plate (7), wherein the driving member is installed between two adjacent conveyor belts (1), and the driving member drives the guide plate (7) to move to an avoidance position and a blocking position; When the guide plate (7) is located at the avoidance position, the lens mold is located on one of the conveyor belts (1); when the guide plate (7) is located at the blocking position, the lens mold is driven to another adjacent conveyor belt (1) by abutment.

8. The lens casting machine according to claim 1, characterized in that: The conveyor belt (1) is provided with a partition to form the loading area (11) and the unloading area (12), each partition of the conveyor belt (1) cooperates with the position of the corresponding casting plate, and the partition is installed with a positioning baffle (6) to prevent the lens mold of the loading area (11) from directly entering the unloading area (12).

9. The lens casting machine according to claim 2, characterized in that: The casting mechanism (3) comprises an adsorption component (31) for fixing the lens mold, a tape tearing component (32) and a tape sticking component (33) installed on the same side of the adsorption component (31), a liquid injection component (34) installed on the other side of the adsorption component (31), and a rotating component (35) for driving the adsorption component (31) to rotate.

10. The lens casting machine according to claim 9, characterized in that: The casting mechanism (3) further comprises a correction component (36), wherein the correction component (36) is used to calibrate the lens mold on the adsorption component (31) to a preset position.

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