Automatic tape tearing device for resin lens casting machine mold

Abstract

The utility model discloses a kind of mould automatic adhesive tape tearing devices for resin lens pouring machine, including lens mould rotating mechanism, adhesive tape doctor, feed cylinder and lifting platform.Lens mould rotating mechanism is composed of mould suction cup, rotating shaft, coupling and pneumatic motor, and lens mould is rotated in vertical plane by pneumatic motor drive.Adhesive tape doctor is arranged tangentially along lens mould, and front end is provided with arc chamfer, rear end is connected with the feed cylinder piston rod arranged horizontally, and the telescoping of doctor along tangential direction is realized.Lifting platform includes base, vertical guide rail, sliding table and lifting cylinder, so that doctor assembly can move up and down.Sliding table is provided with inclined sliding table module and connected sensor adjusting mechanism, and position sensor can automatically detect lens mould position and adjust angle.The device can automatically identify lens mould position and accurately uncover small opening with adhesive tape, improve the automation and stability of adhesive tape operation, reduce manual intervention.

Description

Technical Field

[0001] This utility model relates to an automatic tape-tearing device for molds used in resin lens casting machines. Background Technology

[0002] During the casting and molding process of resin lenses, two molds are usually stacked to form a mold cavity, and their outer edges are sealed with tape to prevent resin leakage. Before injecting the resin, a small opening needs to be pre-torn in the tape as an injection port.

[0003] Currently, this operation is mostly done manually, which is inefficient and inconsistent, and can easily lead to excessive tearing or misalignment of the tape, thus affecting the resin injection effect and lens quality.

[0004] In addition, manual adhesive removal has problems such as high labor intensity and inaccurate position recognition, which is not conducive to the automated continuous production of resin lens casting machines.

[0005] Therefore, there is an urgent need for a device that can automatically position the lens mold and automatically open the tape to improve the level of production automation and product consistency. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic tape-tearing device for molds used in resin lens casting machines.

[0007] An automatic tape-tearing device for a resin lens casting machine includes a lens mold rotation mechanism. The rotation mechanism includes a mold suction cup connected to a pneumatic motor via a rotating shaft and coupling. The pneumatic motor drives the lens mold to rotate clockwise or counterclockwise in a vertical plane. A tape scraper is tangentially positioned at the top of the lens mold, with a chamfered front end. The rear end of the tape scraper is connected to the piston rod of a horizontally positioned feed cylinder, and the tape scraper can extend and retract along the tangential direction of the lens mold. The feed cylinder is connected to a lifting platform, which includes a vertically positioned base with two parallel, vertically aligned linear guide rails. These two guide rails are connected to a slide, and a lifting cylinder is positioned between the slide and the base. The cylinder body of the lifting cylinder is connected to the inner side of the slide table, and the piston rod of the lifting cylinder is connected to the inner side of the base. Under the action of the lifting cylinder, the slide table can slide up and down along the linear guide rail on the base. The slide table is also equipped with an inclined slide table module. The angle between the movement direction of the slider on the slide table module and the horizontal direction is 0~45°. The slider is equipped with an L-shaped connecting seat, which is connected to a sensor adjustment mechanism. The sensor adjustment mechanism includes a lever, the fulcrum of which is located on the connecting seat. One end of the lever is equipped with a position sensor, which is located above the lens mold. The other end of the lever is equipped with an elongated hole, through which a bolt passes and is connected to the connecting seat. A spring is also provided between the bottom of the elongated hole and the connecting seat. The spring is sleeved on the outside of the bolt. The position of the position sensor can be adjusted by turning the bolt.

[0008] As a further improvement, the base and slide are equipped with cable organizers for tidying up the wiring harness and air lines, so that the cables and air pipes are neatly arranged, reducing movement interference and improving maintenance convenience and device reliability.

[0009] As a further improvement, the lens mold rotating mechanism is provided with symmetrical tape constraint roller groups on both sides to stabilize the tape tension when the mold rotates, prevent the tape from shifting or wrinkling, and improve the consistency of the cut.

[0010] As a further improvement, a sensor angle adjustment cylinder is provided at the bottom of the lever. The piston rod of the sensor angle adjustment cylinder is connected to the position sensor through a hinge block, which can finely adjust the position sensor angle in real time to ensure the detection accuracy under different mold sizes and tilt angles, and further enhance the automation adaptability.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. High degree of automation: The lens mold is driven to rotate by a pneumatic motor, and the position is automatically identified by a sensor adjustment mechanism to achieve fully automatic operation of tape opening.

[0012] 2. Precise positioning: The position sensor and angle adjustment mechanism work together to automatically adjust according to the actual height and angle of the lens mold, ensuring the stability of the scraper cut position.

[0013] 3. Compact and reliable structure: The lifting platform, tilting slide module and feed cylinder work together to enable the device to be flexibly adjusted in three-dimensional space to adapt to molds of different specifications.

[0014] 4. Protect the integrity of the tape: The front end of the scraper has an arc-shaped chamfer, which can effectively prevent the tape from being cut or torn, forming only a small cut, which facilitates subsequent resin injection.

[0015] 5. Convenient maintenance and wiring: The installation of cable management devices and constraint roller groups reduces interference between air pipes and cables, improving the overall reliability and service life of the machine. Attached Figure Description

[0016] Figure 1 A first perspective view of an automatic tape-tearing device for a resin lens casting machine mold; Figure 2 This is a second perspective view of an automatic tape-tearing device for a resin lens casting machine. Figure 3 This is a front view of an automatic tape-tearing device for a resin lens casting machine. 1. Mold suction cup 2. Pneumatic motor 3. Tape scraper 4. Feed cylinder 5. Lifting platform 6. Base 7. Linear guide rail 8. Slide table 9. Lifting cylinder 10. Slide table module 11. Connecting seat 12. Lever 13. Position sensor 14. Bolt 15. Spring 16. Cable organizer 17. Tape constraint roller assembly 18. Sensor angle adjustment cylinder 19. Hinge block. Detailed Implementation

[0017] 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.

[0018] like Figures 1-3 As shown, an automatic tape-tearing device for a resin lens casting machine includes a mold suction cup 1, a pneumatic motor 2, a tape scraper 3, a feed cylinder 4, a lifting platform 5, a base 6, a linear guide rail 7, a slide table 8, a lifting cylinder 9, a slide table module 10, a connecting seat 11, a lever 12, a position sensor 13, a bolt 14, a spring 15, a cable organizer 16, a tape constraint roller assembly 17, a sensor angle adjustment cylinder 18, and a hinge block 19.

[0019] An automatic tape-tearing device for a resin lens casting machine includes a lens mold rotation mechanism, a tape scraper assembly 3, a lifting platform 5, and a sensor adjustment mechanism.

[0020] The lens mold rotation mechanism includes a mold suction cup 1, a rotating shaft, a coupling, and a pneumatic motor 2. The mold suction cup 1 is used to adsorb the lens mold, and the rotating shaft is connected to the pneumatic motor 2 through the coupling. Driven by the pneumatic motor 2, the lens mold rotates clockwise or counterclockwise in a vertical plane to adjust the position of the tape tear.

[0021] The tape scraper 3 is arranged tangentially to the lens mold, and its front end has a rounded chamfer for tearing small notches on the tape surface. The rear end of the scraper is connected to the piston rod of the horizontally positioned feed cylinder 4, enabling tangential extension and retraction. The feed cylinder 4 is fixed to the lifting platform 5 to control the contact depth between the scraper and the mold.

[0022] The lifting platform 5 includes a vertically arranged base 6 and two parallel linear guide rails 7 connecting to a slide 8. A lifting cylinder 9 is located between the slide 8 and the base 6, with the cylinder body connected to the inner side of the slide 8 and the piston rod connected to the inner side of the base 6, thereby driving the slide 8 to slide up and down vertically to achieve height adjustment of the scraper assembly.

[0023] An inclined slide module 10 is provided on the slide 8, and the angle between the movement direction of the slider and the horizontal line is 0~45°. An L-shaped connecting seat 11 is installed on the slider, and the connecting seat 11 is used to support the sensor adjustment mechanism.

[0024] The sensor adjustment mechanism includes a lever 12, a position sensor 13, and an adjusting spring 15. The fulcrum of the lever 12 is set on the connecting seat 11. The position sensor 13 is installed at one end to detect the position of the upper surface of the lens mold; the other end has an elongated hole and is connected to the connecting seat 11 by a bolt 14. A spring 15 is installed between the bottom of the elongated hole and the connecting seat 11. The sensor orientation can be finely adjusted by turning the bolt 14 to adapt to the detection of molds of different sizes.

[0025] During operation, the mold suction cup 1 adsorbs the lens mold and is driven to rotate by the pneumatic motor 2. When the position sensor 13 detects the target position, the feed cylinder 4 pushes the scraper to extend tangentially, and the curved chamfer at the front end of the scraper tears a small notch in the tape. Then the cylinder retracts, completing one opening operation.

[0026] To ensure safe and stable operation, cable organizers 16 are installed on the base 6 and slide 8 to organize electrical and pneumatic pipelines and prevent motion interference. Symmetrical tape constraint roller groups 17 are also installed on both sides of the lens mold rotation mechanism to stabilize tape tension. A sensor angle adjustment cylinder 18 is installed at the bottom of the lever 12, which can finely adjust the angle of the position sensor 13 according to the detection needs to improve detection accuracy.

[0027] 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. An automatic tape-tearing device for a resin lens casting machine mold, characterized in that, The system includes a lens mold rotation mechanism, which comprises a mold suction cup connected to a pneumatic motor via a rotating shaft and a coupling. The pneumatic motor drives the lens mold to rotate clockwise or counterclockwise in a vertical plane. A tape scraper is tangentially positioned at the top of the lens mold, with a chamfered front end. The rear end of the tape scraper is connected to the piston rod of a horizontally positioned feed cylinder, and the tape scraper can extend and retract along the tangential direction of the lens mold. The feed cylinder is connected to a lifting platform, which includes a vertically positioned base with two parallel linear guides, also vertical, connected to a slide. A lifting cylinder is positioned between the slide and the base, with the cylinder body of the lifting cylinder connected to the slide. The inner side of the platform is connected to the inner side of the base, and the piston rod of the lifting cylinder is connected to the inner side of the base. Under the action of the lifting cylinder, the slide can slide up and down along the linear guide rail on the base. The slide is also equipped with an inclined slide module. The angle between the movement direction of the slider on the slide module and the horizontal direction is 0~45°. The slider is equipped with an L-shaped connecting seat, which is connected to a sensor adjustment mechanism. The sensor adjustment mechanism includes a lever, the fulcrum of which is located on the connecting seat. One end of the lever is equipped with a position sensor, which is located above the lens mold. The other end of the lever is equipped with an elongated hole, through which a bolt passes and is connected to the connecting seat. A spring is also provided between the bottom of the elongated hole and the connecting seat. The spring is sleeved on the outside of the bolt. The position of the position sensor can be adjusted by turning the bolt.

2. The automatic tape-tearing device for a resin lens casting machine according to claim 1, characterized in that, The base and slide are equipped with cable organizers for tidying up the wire harness and air passages.

3. The automatic tape-tearing device for a resin lens casting machine according to claim 1, characterized in that, The lens mold rotation mechanism is provided with symmetrical tape constraint roller sets on both sides.

4. The automatic tape-tearing device for a resin lens casting machine according to claim 1, characterized in that, The lever is equipped with a sensor angle adjustment cylinder at its bottom, and the piston rod of the sensor angle adjustment cylinder is connected to the position sensor through a hinge block.

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