Lens mold transfer device for a lens casting machine

Abstract

The utility model discloses a lens mold transfer device for lens pouring machine belongs to optical processing equipment technical field. The device includes transmission mechanism and steering mechanism, and transmission mechanism is used for conveying lens mold to the specified position horizontally, and its end is equipped with limiting device and position sensor, is used for detecting lens mold position to realize the automatic centering of lens mold through the centering device of the two -way pneumatic cylinder drive of symmetrical setting. Steering mechanism includes the support seat of being equipped with in the centering device side, steering motor, chain wheel transmission and lifting cylinder mounting seat, and lifting cylinder drives the adsorption and lifting of sucking disc to lens mold, and steering motor drives lifting cylinder mounting seat rotation, makes lens mold by horizontal state to vertical state. The device can realize the automatic adsorption of lens mold, accurate positioning and attitude steering, and the automation degree and production efficiency of resin lens pouring production process are improved significantly.

Description

Technical Field

[0001] This utility model relates to a lens mold transfer device for a lens casting machine. Background Technology

[0002] In the resin lens casting process, two lens molds are usually joined together, and resin material is injected into the gap between them for curing and shaping. Since the lens molds are generally transported horizontally by a conveyor belt before resin injection, in order to facilitate uniform resin injection and prevent leakage, the lens molds often need to be changed from a horizontal to a vertical position.

[0003] Existing lens mold transfer processes mostly rely on manual operation or simple robotic arms, which is not only inefficient and lacks positioning accuracy, but also prone to mold slippage, breakage, or uneven resin injection due to unstable adsorption or angular deviation, seriously affecting lens quality and production cycle time. Therefore, there is an urgent need for an automated transfer device with a reasonable structure, precise steering, and reliable adsorption to improve the automation level of the lens casting process and product consistency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a lens mold transfer device for a lens casting machine.

[0005] A lens mold transfer device for a lens casting machine includes a conveying mechanism and a steering mechanism. The conveying mechanism includes a conveyor belt with a limiting device at the end. The limiting device is equipped with a position sensor for detecting the position of the lens mold. The front end of the limiting device is equipped with a lens mold centering device. The centering device includes a support frame symmetrically arranged on the conveying mechanism. A bidirectional cylinder is provided on the support frame. The piston rods on the left and right sides of the bidirectional cylinder are respectively connected to a connecting arm. Two vertical guide posts are provided at the bottom of each of the left and right connecting arms. The outer side of the guide posts is covered with a rubber pad. The steering mechanism is located next to the centering device. The steering mechanism includes a support base. A steering motor is provided above the support base. The output shaft of the steering motor is connected to a lifting cylinder mounting base through a sprocket transmission device. A lifting cylinder is provided on the lifting cylinder mounting base. The piston rod of the lifting cylinder is connected to a suction cup. The suction cup is located above the center of the two guide posts. The center of the suction cup is provided with an air extraction hole, which is connected to an air pump through an air passage.

[0006] As a further improvement, the conveying mechanism includes symmetrically arranged mounting frames, with the two mounting frames connected by a support rod. The front end and the end of the mounting frame are respectively provided with a drive roller and a driven roller. The conveyor belt is located outside the drive roller and the driven roller. The front end of the mounting frame is provided with a drive motor. The drive roller is connected to the output shaft of the drive motor through a pulley and a transmission belt. The smooth transport of the lens mold is achieved by using a drive roller and a driven roller in conjunction with a transmission belt. The structure is symmetrical and easy to install. The belt-driven drive motor has low noise and long service life. This ensures smooth mold movement and precise positioning, providing a stable input for subsequent adsorption and steering.

[0007] As a further improvement, the sprocket drive device includes a drive wheel connected to the output shaft of the steering motor, a drive shaft mounting seat on the top of the support base, the drive shaft being mounted in the drive shaft mounting seat by bearings, one end of the drive shaft being connected to the lifting cylinder mounting seat, and the other end of the drive shaft being provided with a driven wheel, which is connected to the drive wheel by a belt or chain. It uses sprocket or belt drive, which has high transmission efficiency and good synchronization. It can achieve high torque steering in a limited space, ensuring the stability of the suction cup and mold during rotation; Easy to maintain and suitable for production environments with high-frequency continuous operation.

[0008] This utility model provides a lens mold transfer device for a lens casting machine. Through the organic cooperation of a conveying mechanism, a centering device, and a steering mechanism, it realizes the automatic transfer of the lens mold from horizontal conveying to vertical positioning. Its main advantages are as follows: 1. High degree of automation: The mold position is detected by a position sensor, and the mold is automatically detected, adsorbed and turned through the coordination of pneumatic and electric drives.

[0009] 2. High centering accuracy: Flexible limiting and precise centering are achieved through a two-way cylinder and guide pillars with rubber pads, effectively preventing mold offset.

[0010] 3. Stable adsorption: The suction cup has an air extraction hole in the center and is connected to an air pump, ensuring uniform and reliable adsorption force and guaranteeing the stability of the lens mold during the turning process.

[0011] 4. Compact structure and reliable transmission: The sprocket drive device enables the lifting cylinder mounting base to rotate precisely with the motor, ensuring accurate mold turning angle and strong load-bearing capacity of the mechanism.

[0012] 5. Improve production efficiency and consistency: Automated transfer reduces manual intervention, increases lens yield, and improves the stability of the casting process. Attached Figure Description

[0013] Figure 1 A first perspective view of a lens mold transfer device for a lens casting machine; Figure 2 This is a second perspective view of a lens mold transfer device used in a lens casting machine; Figure 3This is a front view of a lens mold transfer device used in a lens casting machine; Figure 4 This is a right view of a lens mold transfer device used in a lens casting machine; Figure 5 Left view of a lens mold transfer device used in a lens casting machine; Figure 6 This is a top view of a lens mold transfer device used in a lens casting machine; 1. Conveying Mechanism 11. Conveyor Belt 12. Limiting Device 13. Position Sensor 14. Centering Device 141. Support Frame 142. Two-Way Cylinder 143. Connecting Arm 144. Guide Column 15. Mounting Frame 16. Drive Roller 17. Driven Roller 18. Drive Motor 2. Steering Mechanism 21. Support Seat 22. Steering Motor 23. Sprocket Drive Device 231. Drive Wheel 232. Drive Shaft Mounting Seat 233. Drive Shaft 234. Driven Wheel 24. Lifting Cylinder Mounting Seat 25. Lifting Cylinder 26. Suction Cup. Detailed Implementation

[0014] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0015] like Figures 1-6 As shown, a lens mold transfer device for a lens casting machine includes a conveying mechanism 1, a conveyor belt 11, a limiting device 12, a position sensor 13, a centering device 14, a support frame 141, a bidirectional cylinder 142, a connecting arm 143, a guide column 144, a mounting frame 15, a drive roller 16, a driven roller 17, a drive motor 18, a steering mechanism 2, a support seat 21, a steering motor 22, a sprocket transmission device 23, a drive wheel 231, a transmission shaft mounting seat 232, a transmission shaft 233, a driven wheel 234, a lifting cylinder mounting seat 24, a lifting cylinder 25, and a suction cup 26.

[0016] The conveying mechanism 1 includes symmetrically arranged mounting frames 15, which are connected by support rods. The front and rear ends of the mounting frames 15 are respectively provided with a drive roller 16 and a driven roller 17, and the conveyor belt 11 is sleeved on the outside of both. The front end of the mounting frame 15 is provided with a drive motor 18, which drives the drive roller 16 to rotate through a pulley and a transmission belt to realize the horizontal conveying of the lens mold.

[0017] A limit device 12 is provided at the end of the conveyor belt 11 to stop the forward movement of the lens mold. The limit device 12 is equipped with a position sensor 13 to detect the positioning signal of the lens mold, thereby controlling the conveyor belt 11 to stop and start the subsequent turning action.

[0018] The front end of the limiting device 12 is provided with a lens mold centering device 14. The centering device 14 includes a support frame 141 symmetrically arranged on both sides of the conveying mechanism 1, and a bidirectional cylinder 142 is mounted on the support frame 141. The piston rods at both ends of the cylinder are respectively connected to the connecting arm 143. Each connecting arm 143 has two vertical guide posts 144 at its bottom. The surface of the guide posts 144 is covered with rubber pads to flexibly clamp the mold when the lens mold is in place, so as to achieve precise centering without damaging the mold.

[0019] The steering mechanism 2 is located on one side of the centering device 14 and includes a support base 21, a steering motor 22, a sprocket drive device 23, a lifting cylinder 25 mounting base 24, and a suction cup 26 assembly.

[0020] The output shaft of the steering motor 22 is connected to the drive shaft 233 via a belt or chain between the drive wheel 231 and the driven wheel 234. The drive shaft 233 is installed in the drive shaft 233 mounting base 232, and one end of it is connected to the lifting cylinder 25 mounting base 24, thereby driving the mounting base to rotate and realizing the rotation and steering of the suction cup 26 assembly.

[0021] A lifting cylinder 25 is mounted on the lifting cylinder mounting base 24, and the piston rod of the lifting cylinder 25 is connected to the suction cup 26. The suction cup 26 has a central air extraction hole, which is connected to an air pump (not shown in the figure) via an air passage. When the position sensor 13 detects a mold positioning signal, the lifting cylinder 25 descends, causing the suction cup 26 to adhere to the lens mold. Then, the motor drives the lifting cylinder 25 mounting base 24 to rotate 90°, changing the lens mold from a horizontal to a vertical position. After the rotation is complete, the lifting cylinder 25 rises, and the mold is handed over to subsequent processes.

[0022] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lens mold transfer device for a lens casting machine, characterized in that, The system includes a conveying mechanism and a steering mechanism. The conveying mechanism includes a conveyor belt with a limiting device at the end. The limiting device is equipped with a position sensor for detecting the position of the lens mold. The front end of the limiting device is equipped with a lens mold centering device. The centering device includes a support frame symmetrically arranged on the conveying mechanism. A bidirectional cylinder is mounted on the support frame. The piston rods on the left and right sides of the bidirectional cylinder are respectively connected to a connecting arm. Two vertical guide posts are provided at the bottom of each of the left and right connecting arms. The outer side of the guide posts is covered with a rubber pad. The steering mechanism is located next to the centering device. The steering mechanism includes a support base with a steering motor above it. The output shaft of the steering motor is connected to a lifting cylinder mounting base via a sprocket transmission device. A lifting cylinder is mounted on the lifting cylinder mounting base. The piston rod of the lifting cylinder is connected to a suction cup. The suction cup is located above the center of the two guide posts. The center of the suction cup has an air extraction hole, which is connected to an air pump via an air passage.

2. The lens mold transfer device for a lens casting machine according to claim 1, characterized in that, The conveying mechanism includes symmetrically arranged mounting frames, with two mounting frames connected by a support rod. The front and rear ends of the mounting frames are respectively provided with a drive roller and a driven roller. The conveyor belt is located outside the drive roller and the driven roller. The front end of the mounting frame is provided with a drive motor. The drive roller is connected to the output shaft of the drive motor through a pulley and a transmission belt.

3. A lens mold transfer device for a lens casting machine according to claim 1, characterized in that, The sprocket drive device includes a drive wheel connected to the output shaft of the steering motor. The top of the support base is provided with a drive shaft mounting base. The drive shaft is mounted in the drive shaft mounting base through bearings. One end of the drive shaft is connected to the lifting cylinder mounting base, and the other end of the drive shaft is provided with a driven wheel. The driven wheel is connected to the drive wheel through a belt or chain.

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