Lens mold closing and transfer mechanism

Abstract

The present invention discloses a lens mold closing and transfer mechanism. It comprises a manipulator and a grabbing arm arranged on the manipulator. The manipulator can grab the upper lens mold and the lower lens mold to the entrance of the closing machine. The entrance of the closing machine is provided with an upper mold conveyor belt for conveying the upper lens mold and a lower mold conveyor belt for conveying the lower lens mold. After the grabbing arm grabs the upper lens mold, it can be placed on the upper mold conveyor belt. After the grabbing arm grabs the lower lens mold, it can be placed on the lower mold conveyor belt. After adopting the above structure, the lower mold can be smoothly transferred to the lower mold conveyor belt without changing the original structure of the manipulator. The structural design is very clever, the transfer is convenient and reliable, and the occurrence of the lens mold contamination problem is effectively avoided, thereby ensuring the cleanliness of the lens mold. In addition, the clever transfer structure makes the transfer very convenient and fast, thereby greatly improving the work efficiency.

Description

Technical Field

[0001] The invention relates to a lens production device, in particular to a lens mold closing and transferring mechanism, belonging to the technical field of lens production and manufacturing. Background Art

[0002] In the lens production process, a lens concave mold and a lens convex mold are generally used to close the mold to form a casting cavity, and the lens is cast in the casting cavity. Before the lens mold is closed, the lens mold needs to be grabbed by a robot to the transfer station. In order to ensure the quality of the lens after casting, no contact can be made with the molding surface of the lens mold. Since the robot only has the function of swing transfer, it will inevitably contact the molding surface of the lens mold during the transfer process, otherwise it cannot be transferred. Therefore, this becomes an important obstacle to the automated transfer of the lens mold. To solve this problem, it is very difficult to redesign the robot. Even if the design is completed, the reliability of use is not easy to guarantee. Therefore, how to make the robot adsorb on the non-molding surface of the lens mold during operation and ensure reliable transfer is the key to solving the above technical problems. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a lens mold closing and transferring mechanism which has an ingenious structural design, is reliable in use, can effectively avoid lens mold contamination, and ensures the cleanliness of the lens mold.

[0004] In order to solve the above technical problems, the lens mold closing and transferring mechanism of the present invention comprises a manipulator and a grabbing arm arranged on the manipulator for grabbing the upper lens mold and the lower lens mold. The manipulator can grab the upper lens mold and the lower lens mold to the entrance of the closing machine. An upper mold conveyor belt for conveying the upper lens mold and a lower mold conveyor belt for conveying the lower lens mold are arranged at the entrance of the closing machine. After grabbing the upper lens mold, the grabbing arm can place it on the upper mold conveyor belt. After grabbing the lower lens mold, the grabbing arm can place it on the lower mold conveyor belt.

[0005] The grabbing arm is provided with a suction cup for adsorbing the upper lens mold and the lower lens mold. After the suction cup of the grabbing arm adsorbs the upper lens mold, it can be parallel to the upper mold conveyor belt, so as to place it horizontally on the upper mold conveyor belt.

[0006] The grabbing arm can be rotated so that the suction cup and the lower mold conveyor belt have an inclined angle, and a guide inclined plate is provided on the lower mold conveyor belt. After the grabbing arm grabs the lower lens mold, it is rotated to an angle suitable for the guide inclined plate and then placed on the guide inclined plate. The guide inclined plate is fixedly mounted on a movable plate pushed by a guide driving device. The guide inclined plate can be driven by the movable plate to move under the drive of the guide driving device and cause the lower lens mold to fall onto the lower mold conveyor belt.

[0007] The guide inclined plate is provided with a space for the grabbing arm to pass through, and the lower lens mold is smoothly placed on the guide inclined plate through the space.

[0008] A stopper located at the end of the guide inclined plate is arranged on one side of the lower mold conveyor belt.

[0009] An upper shifting block driven by an upper shifting driving device is arranged at the end of the upper mold conveyor belt. After the upper lens mold is conveyed to the end of the upper mold conveyor belt, it can be shifted to the mold clamping machine through the upper shifting block. A lower shifting block driven by a lower shifting driving device is arranged at the end of the lower mold conveyor belt. After the lower mold is conveyed to the end of the lower mold conveyor belt, it can be shifted to the mold clamping machine through the lower shifting block.

[0010] The upper mold conveyor belt is arranged in parallel with the lower mold conveyor belt. The upper mold conveyor belt is located on the outer side of the lower mold conveyor belt and is higher than the lower mold conveyor belt.

[0011] The suction cups of the grabbing arms are all adsorbed on the non-molding surfaces of the upper lens mold and the lower lens mold.

[0012] The grabbing arm is provided with three suction cups.

[0013] After adopting the above structure, due to the upper mold conveyor belt and lower mold conveyor belt arranged at the entrance of the mold closing machine and the ingeniously designed underground lens mold transfer structure on the lower mold conveyor belt that cooperate with the robot, the lower lens mold can be smoothly transferred to the lower mold conveyor belt without changing the original structure of the robot. The structural design is very ingenious, the transfer is convenient and reliable, and the occurrence of lens mold contamination problems is effectively avoided, thereby ensuring the cleanliness of the lens mold. In addition, the ingenious transfer structure makes the transfer very convenient and quick, thereby greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the lens mold closing and transferring mechanism of the present invention;

[0015] Figure 2 It is a schematic diagram of the top view of the structure of the lens mold closing and transferring mechanism of the present invention;

[0016] Figure 3 for Figure 1 BB structural diagram;

[0017] Figure 4 for Figure 3 DD-direction structure diagram;

[0018] Figure 5 for Figure 2 Schematic diagram of the CC structure. DETAILED DESCRIPTION

[0019] The lens mold closing and transferring mechanism of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] As shown in the figure, the lens mold closing and transferring mechanism of the present invention includes a robot with a robot arm 1. The movement of the robot arm 1 of the robot can realize the grasping operation of the upper lens mold and the lower lens mold. Among them, the upper lens mold and the lower lens mold are only a definition, which is established based on the corresponding relationship between the upper mold conveyor belt 3 and the lower mold conveyor belt 4, and does not essentially represent the actual upper and lower positions. In this embodiment, the upper lens mold is a concave mold, and the lower lens mold is a convex mold. After the concave mold and the convex mold are matched, a complete casting mold is formed. The robot can grasp the upper lens mold and the lower lens mold. The mold is grabbed to the entrance of the mold clamping machine. The entrance of the mold clamping machine is provided with an upper mold conveyor belt 3 for conveying the upper mold and a lower mold conveyor belt 4 for conveying the lower mold. The upper mold conveyor belt 3 is arranged in parallel with the lower mold conveyor belt 4. The upper mold conveyor belt 3 is located on the outside of the lower mold conveyor belt 4 and is higher than the lower mold conveyor belt 4. A suction cup for adsorbing the upper lens mold and the lower lens mold is provided at the end of the grabbing arm 1. After the suction cup of the grabbing arm 1 adsorbs the upper lens mold, it can be parallel to the upper mold conveyor belt 3, so that the upper lens mold is horizontally placed on the upper mold conveyor belt 2, thereby making the molding surface of the concave mold downward; when grabbing, the suction cup of the grabbing arm 1 is adsorbed on the non-molding surface of the upper lens mold, the grabbing arm 1 can be rotated so that the suction cup and the lower mold conveyor belt 4 have an inclined angle, and a guide inclined plate 5 is provided on the lower mold conveyor belt 4. The suction cup of the grabbing arm 1 is adsorbed on the non-molding surface of the lower lens mold. After the grabbing arm 1 grabs the lower lens mold, it rotates to an angle suitable for the guide inclined plate 5 and places the lower lens mold on the guide inclined plate 5. The guide inclined plate 5 is fixedly installed on a movable plate 7 driven by a guide driving device 6. The guide driving device 6 is preferably a cylinder. The guide inclined plate 5 can be moved on the guide driving device The movable plate 7 is driven by the device 6 to move and make the lower lens mold fall on the lower mold conveyor belt 4. The guide inclined plate 12 has a preset space for the lower grabbing arm 2 to pass through. The space can be a slot. The punch is smoothly placed on the guide inclined plate 5 through the preset space. Due to the action of the guide inclined plate, the punch can slide onto the lower mold conveyor belt 4. Of course, in order to ensure the reliability of the placement of the punch, a stopper 8 is provided at the end of the guide inclined plate 5 on one side of the lower mold conveyor belt 4. According to this design, the grabbing arm 1 can reliably place the lower lens mold on the lower mold conveyor belt 4 after grabbing it.

[0021] Furthermore, an upper shifting block 10 driven by an upper shifting driving device 9 is provided at the end of the upper mold conveyor belt 3. After the upper lens mold is conveyed to the end of the upper mold conveyor belt 3, it can be shifted to the mold clamping machine through the upper shifting block. A lower shifting block 12 driven by a lower shifting driving device 11 is provided at the end of the lower mold conveyor belt 4. After the lower lens mold is conveyed to the end of the lower mold conveyor belt 4, it can be shifted to the mold clamping machine through the lower shifting block.

[0022] Furthermore, the grabbing arm 1 is provided with three suction cups, that is, the three suction cups of the grabbing arm form a group, thereby being able to grab three upper lens molds and three lower lens molds at one time, further improving production efficiency.

Claims

1. A lens mold closing and transferring mechanism, characterized in that: The invention comprises a manipulator and a grabbing arm (1) arranged on the manipulator for grabbing an upper lens mold and a lower lens mold. The manipulator can grab the upper lens mold and the lower lens mold to the entrance of a mold clamping machine. An upper mold conveyor belt (3) for conveying the upper lens mold and a lower mold conveyor belt (4) for conveying the lower lens mold are arranged at the entrance of the mold clamping machine. After grabbing the upper lens mold, the grabbing arm (1) can place it on the upper mold conveyor belt (3). After grabbing the lower lens mold, the grabbing arm (1) can place it on the lower mold conveyor belt (4). The grabbing arm (1) can rotate so that a suction cup and the lower mold conveyor belt (4) have an inclined angle. A guide inclined plate (5) is arranged on the lower mold conveyor belt (4). After grabbing the lower lens mold, the grabbing arm (1) rotates to an angle suitable for the guide inclined plate (5) and places it on the guide inclined plate (5). The suction cups of the grabbing arm (1) are adsorbed on the non-molding surfaces of the upper lens mold and the lower lens mold.

2. The lens mold closing and transferring mechanism according to claim 1, characterized in that: The grabbing arm (1) is provided with a suction cup for adsorbing the upper lens mold and the lower lens mold. After the suction cup of the grabbing arm (1) adsorbs the upper lens mold, it can be parallel to the upper mold conveyor belt (3), thereby placing it horizontally on the upper mold conveyor belt (2).

3. The lens mold closing and transferring mechanism according to claim 2, characterized in that: The guide inclined plate (5) is fixedly mounted on a movable plate (7) driven by a guide drive device (6); the guide inclined plate (5) can be driven by the movable plate (7) to move under the drive of the guide drive device (6) and cause the lower lens mold to fall onto the lower mold conveyor belt (4).

4. The lens mold closing and transferring mechanism according to claim 3, characterized in that: The guide inclined plate (5) has a space for the grabbing arm (1) to pass through, and the lower lens mold can be smoothly placed on the guide inclined plate (5) through the space.

5. The lens mold closing and transferring mechanism according to claim 4, characterized in that: A stopper (8) located at the end of the guide inclined plate (5) is provided on one side of the lower die conveyor belt (4).

6. The lens mold closing and transferring mechanism according to any one of claims 1 to 5, characterized in that: An upper shifting block (10) driven by an upper shifting drive device (9) is provided at the end of the upper mold conveyor belt (3); after the upper lens mold is conveyed to the end of the upper mold conveyor belt (3), it can be shifted to the mold clamping machine by the upper shifting block; and a lower shifting block (12) driven by a lower shifting drive device (11) is provided at the end of the lower mold conveyor belt (4); after the lower mold is conveyed to the end of the lower mold conveyor belt (4), it can be shifted to the mold clamping machine by the lower shifting block.

7. The lens mold closing and transferring mechanism according to claim 6, characterized in that: The upper die conveyor belt (3) is arranged in parallel with the lower die conveyor belt (4); the upper die conveyor belt (3) is located outside the lower die conveyor belt (4) and is higher than the lower die conveyor belt (4).

8. The lens mold closing and transferring mechanism according to claim 1, characterized in that: The grabbing arm (1) is provided with three suction cups.

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