A rotary disc for lens coating

Abstract

This utility model discloses a rotary table for lens coating, including a coating chamber and a sensing component. A rotating motor is located at the upper end of the coating chamber, and an output shaft is located at the output end of the rotating motor. The output shaft is connected to the top of the coating chamber via a bearing. A rotating frame is located inside the coating chamber via the output shaft, and the sensing component is located at the lower end of the output shaft. A placement tray is movably mounted on the rotating frame, and a through hole is located at the center of the top of the placement tray. The sensing component includes a connecting member located at the bottom end of the output shaft, and a movable cavity is provided within the connecting member. This utility model achieves active monitoring and rapid protection of the placement tray's stability through the sensing component, effectively preventing tray breakage, lens scrapping, damage to internal equipment components, and even safety accidents. It significantly reduces maintenance costs, production losses, and safety risks, and greatly improves the reliability and safety of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of lens rotary table technology, specifically a rotary table for lens coating. Background Technology

[0002] A rotary table for lens coating is a mechanical device used in vacuum coating equipment to support and fix lenses, ensuring their uniform rotation during the coating process. Chinese Patent No. CN202321429978.0 discloses a rotary table for lens coating, comprising a coating rotary table integrally disposed inside a vacuum coating machine. The coating rotary table includes a turntable, a fixed cylinder fixedly connected to the outer side of the top center of the turntable, and multiple sets of optical lenses connected to the outer side of the fixed cylinder via a fixing mechanism. A bottom chamber is fixedly connected to the center of the bottom end of the turntable, multiple bearings are fixedly connected to the outer periphery of the bottom chamber, and a toothed ring is fixedly connected to the center of the inner sidewall of the bottom chamber. This rotary table for lens coating allows for easy lifting of the fixing plate via a fixing bar, separating the fixing plate from the bottom fixing column and completing the unloading process. A stepper motor drives the entire coating rotary table to rotate, facilitating the unloading of the remaining fixing plates. The operation is simple and beneficial for practical use.

[0003] Based on the above, the inventors have discovered the following problems: The above-mentioned device can facilitate the unloading of the remaining fixed plates, is simple to operate, and is beneficial for practical use. However, it ignores the risk of the rotary table falling off when used in the evaporation coating machine. As the rotary table is used for a long time, some parts will be damaged. When the rotary table is rotating in the coating machine and is damaged, its parts and lenses will fall off, damaging the internal mechanical structure of the coating machine and causing a lot of losses. Utility Model Content

[0004] The purpose of this invention is to provide a rotary table for lens coating to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rotary table for lens coating, comprising a coating chamber and a sensing component, wherein a rotating motor is provided at the upper end of the coating chamber, an output shaft is provided at the output end of the rotating motor, the output shaft is connected to the top of the coating chamber via a bearing, a rotating frame is provided inside the coating chamber through the output shaft, the sensing component is provided at the lower end of the output shaft, a placement plate is movably provided on the rotating frame, and a through hole is provided at the center of the top of the placement plate.

[0006] Furthermore, the sensing component includes a connector located at the bottom end of the output shaft. The connector has a movable cavity within it, and a connecting shaft is fixedly mounted within the movable cavity. A sleeve shaft is slidably connected to the lower end of the connecting shaft, and a sliding hole is provided within the sleeve shaft. The upper end of the sliding hole is fitted onto the connecting shaft and can slide along it. A connecting plate is connected to the lower end of the sleeve shaft, and a mounting plate is provided within the connecting plate. Several sensing buttons are evenly arranged on the side of the mounting plate. Several moving cavities are evenly opened on the side of the connecting plate, and a sliding shaft is provided within each moving cavity. One end of the sliding shaft passes through the moving cavity and extends into the connecting plate, where a push plate is provided. The other end of the sliding shaft passes through the outside of the connecting plate and is equipped with a sensing element. A spring is fitted onto the sliding shaft within the moving cavity. Each push plate corresponds to a sensing button. The sensing button is electrically connected to the off button of the rotating motor via a wire.

[0007] Furthermore, the sleeve shaft has a pair of movable handles on its side, and the connector has a pair of adjusting grooves on its side. The position of the adjusting grooves corresponds to the movable handles, and the movable handles extend through the adjusting grooves to the outside of the connector.

[0008] Furthermore, when the movable handle is at the bottom of the adjustment groove, the connecting plate is located inside the through hole.

[0009] Furthermore, the diameter of the annular periphery formed by the plurality of sensing elements is smaller than the diameter of the through hole.

[0010] Furthermore, the bottom end of the rotary frame is provided with a groove, the size of which is adapted to the outer diameter of the placement tray.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the rotary table for lens coating is reasonable and has the following advantages:

[0012] (1) The sensor components enable active monitoring and rapid protection of the placement tray's stability. When the placement tray shakes or even detaches from the rotating frame due to damaged parts or unstable installation, the inner wall of its through hole will impact the annularly distributed sensors; the impact force pushes the sliding shaft inward, causing the pusher to press the corresponding sensor button; once the button is triggered, it immediately sends a signal to the motor shut-off button via a wire, causing the motor to stop instantly. This rapid response mechanism, combining pure mechanical triggering with electrical signals, can terminate dangerous rotation before the placement tray and its load completely lose control and splash, impacting key components of the coating machine cavity. This effectively prevents the placement tray from breaking, the lens from being scrapped, damage to internal components of the equipment, or even safety accidents, significantly reducing maintenance costs, production losses, and safety risks, and greatly improving the reliability and safety of equipment operation.

[0013] (2) The height adjustability of the sensing components significantly improves the ease of use and adaptability of the equipment. Operators can easily raise and lower the sleeve shaft and connecting plate by sliding the external handle up and down in the adjustment slot. When loading and unloading the placement plate, raising the handle allows the connecting plate to be completely removed from the through hole, providing unobstructed space for loading and unloading the placement plate, avoiding bumps, and simplifying operation. In the working state, lowering the handle to the bottom of the adjustment slot ensures that the connecting plate is accurately located in the through hole, maintaining a safe gap between the sensing element and the inner wall of the through hole. This convenient adjustment not only optimizes the loading and unloading process, but also allows the same set of sensing components to easily adapt to various models of placement plates with different through hole sizes by preset different heights, enhancing the versatility and flexibility of the equipment, reducing the need for special equipment, and lowering the cost of use and management. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of part of the structure of this utility model;

[0016] Figure 3 This utility model Figure 2 A schematic diagram of the decomposed structure;

[0017] Figure 4 This is a cross-sectional view of the output shaft of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the sleeve shaft of this utility model;

[0019] In the diagram: 1. Coating chamber; 2. Output shaft; 3. Rotary frame; 4. Placement plate; 5. Rotating motor; 6. Through hole; 7. Connecting piece; 8. Adjustment groove; 9. Sensor; 10. Moving handle; 11. Movable chamber; 12. Connecting shaft; 13. Wire; 14. Sleeve shaft; 15. Connecting plate; 16. Sliding hole; 17. Mounting plate; 18. Sensor button; 19. Sliding shaft; 20. Spring; 21. Push plate; 22. Movable chamber. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 The present invention provides a technical solution as follows:

[0022] Example:

[0023] A rotary table for lens coating includes a coating chamber 1 and a sensing component. The upper end of the coating chamber 1 is provided with a rotary motor 5, and the output end of the rotary motor 5 is provided with an output shaft 2. The output shaft 2 is connected to the top end of the coating chamber 1 through a bearing. The output shaft 2 extends into the coating chamber 1 and is provided with a rotary frame 3. The lower end of the output shaft 2 is provided with the sensing component. A placement plate 4 is movably provided on the rotary frame 3, and a through hole 6 is provided at the center of the top end of the placement plate 4.

[0024] The rotating motor 5 drives the output shaft 2 to rotate; the output shaft 2 drives the rotating frame 3 connected to it to rotate in the coating chamber 1; the placement tray 4 is movably set on the rotating frame 3, so the placement tray 4 and the lens it carries rotate accordingly to achieve uniform coating.

[0025] The sensing component includes a connector 7 located at the bottom end of the output shaft 2. The connector 7 has a movable cavity 11, within which a connecting shaft 12 is fixedly mounted. A sleeve 14 is slidably connected to the lower end of the connecting shaft 12. The sleeve 14 has a sliding hole 16, the upper end of which is fitted over the connecting shaft 12 and can slide along it. A connecting plate 15 is connected to the lower end of the sleeve 14. A mounting plate 17 is located within the connecting plate 15, and several sensing elements are evenly distributed on the side of the mounting plate 17. The connecting plate 15 has several moving cavities 22 evenly distributed on its side. Each moving cavity 22 has a sliding shaft 19. One end of the sliding shaft 19 passes through the moving cavity 22 and extends into the connecting plate 15, where a push plate 21 is provided. The other end of the sliding shaft 19 passes through the outside of the connecting plate 15 and is provided with a sensor 9. A spring 20 is sleeved inside the moving cavity 22 of the sliding shaft 19. Each push plate 21 corresponds to a position of a sensor button 18. The sensor button 18 is electrically connected to the off button of the rotating motor 5 through a wire 13.

[0026] The sleeve shaft 14 has a pair of movable handles 10 on its side, and the connector 7 has a pair of adjusting grooves 8 on its side. The position of the adjusting grooves 8 corresponds to the movable handles 10, and the movable handles 10 extend through the adjusting grooves 8 to the outside of the connector 7.

[0027] When the movable handle 10 is located at the bottom of the adjustment groove 8, the connecting plate 15 is located inside the through hole 6.

[0028] Wherein, the diameter of the annular outer periphery formed by a plurality of the sensing elements 9 is smaller than the diameter of the through hole 6;

[0029] like Figure 5 As shown, the diameter of the annular outer periphery formed by the plurality of sensing elements 9 is slightly smaller than the diameter of the through hole 6.

[0030] The rotary frame 3 has a groove at its bottom end, and the size of the groove is adapted to the outer diameter of the placement plate 4.

[0031] Working principle: The sensing component is designed to automatically stop the motor when some parts of the placement tray 4 are damaged, causing the placement tray 4 to shake on the rotary frame 3 or accidentally fall off the rotary frame 3, so as to prevent equipment damage or safety accidents.

[0032] In normal operation, the placement tray 4 is correctly positioned within the groove at the bottom of the rotating frame 3, with the dimensions matching. At this time, the through hole 6 at the top of the placement tray 4 is fitted over the connecting plate 15 of the sensing component. The diameter of the annular outer periphery formed by the sensing element 9 is smaller than the diameter of the through hole 6, so the sensing element 9 is located inside the through hole 6 and does not contact the placement tray 4;

[0033] When the placement tray 4 falls out of the groove of the rotary frame 3 due to its own damage or operator misoperation, or when the rotary frame 3 becomes unstable, the inner wall of the through hole 6 of the placement tray 4 will hit the sensor 9 during the shaking process inside the rotary table 3. The sensor 9 is impacted by the placement tray 4, which pushes the sliding shaft 19 to move into the connecting plate 15. The sliding shaft 19 drives the push plate 21 to move and press the corresponding sensor button 18. At this time, the spring 20 is compressed when the sliding shaft 19 moves, providing elasticity for subsequent reset. After the sensor button 18 is pressed, it sends an electrical signal to the shut-off button of the rotary motor 5 through the wire 13. After receiving the shut-off signal, the rotary motor 5 immediately stops running. The entire rotary table, including the rotary frame 3, stops rotating, avoiding further damage to the inside of the coating chamber 1 due to the placement tray 4 and its parts falling off.

[0034] The sleeve shaft 14 can slide up and down along the connecting shaft 12 fixed in the movable cavity 11 through the sliding hole 16; the movable handle 10 extends to the outside through the adjustment groove 8 for the operator to grip; by operating the movable handle 10 to move up and down in the adjustment groove 8, the sleeve shaft 14 and the connecting plate 15 connected to its lower end can be raised and lowered as a whole; when the movable handle 10 moves to the bottom of the adjustment groove 8, the connecting plate 15 is located in the through hole 6, ensuring that the sensing element 9 is in the correct working position, that is, in normal working condition, it does not contact the through hole 6 and can be impacted when it falls off. This adjustment ensures that when the operator loads and unloads the placement plate 4, the connecting plate 15 will not affect the installation of the placement plate 4 and the rotating frame 3, and several slots can be opened in the adjustment groove 8, so that this sensing component can be adapted to different models of placement plates 4.

[0035] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rotary table for lens coating, comprising a coating chamber (1) and a sensing component, characterized in that: The upper end of the coating chamber (1) is provided with a rotating motor (5), the output end of the rotating motor (5) is provided with an output shaft (2), the output shaft (2) is connected to the top of the coating chamber (1) through a bearing, the output shaft (2) extends into the coating chamber (1) and is provided with a rotating frame (3), the lower end of the output shaft (2) is provided with the sensing component, the rotating frame (3) is movably provided with a placement plate (4), and the top center of the placement plate (4) is provided with a through hole (6).

2. The rotary table for lens coating according to claim 1, characterized in that: The sensing component includes a connector (7), which is located at the bottom end of the output shaft (2). The connector (7) has a movable cavity (11) inside, and a connecting shaft (12) is fixedly installed inside the movable cavity (11). A sleeve shaft (14) is slidably connected to the lower end of the connecting shaft (12). A sliding hole (16) is provided inside the sleeve shaft (14). The upper end of the sliding hole (16) is sleeved outside the connecting shaft (12) and can slide along it. The lower end of the sleeve shaft (14) is connected to a connecting plate (15), and the connecting plate (15) is provided with a mounting plate (17). Several induction buttons (18) are evenly arranged on the side of the mounting plate (17). Several moving cavities (22) are evenly opened on the side of the connecting plate (15). A sliding shaft (19) is provided in the moving cavity (22). One end of the sliding shaft (19) passes through the moving cavity (22) and extends into the connecting plate (15) and is provided with a push plate (21). The other end of the sliding shaft (19) passes through the outside of the connecting plate (15) and is provided with a sensor (9). A spring (20) is sleeved in the moving cavity (22) of the sliding shaft (19). Each push plate (21) corresponds to the position of one of the induction buttons (18). The induction button (18) is electrically connected to the off button of the rotating motor (5) through a wire (13).

3. The rotary table for lens coating according to claim 2, characterized in that: The sleeve shaft (14) has a pair of movable handles (10) on its side, and the connector (7) has a pair of adjustment grooves (8) on its side. The position of the adjustment grooves (8) corresponds to the movable handles (10), and the movable handles (10) extend through the adjustment grooves (8) to the outside of the connector (7).

4. The rotary table for lens coating according to claim 3, characterized in that: When the movable handle (10) is at the bottom of the adjustment groove (8), the connecting plate (15) is located inside the through hole (6).

5. A rotary table for lens coating according to claim 4, characterized in that: The diameter of the annular periphery formed by several of the sensing elements (9) is smaller than the diameter of the through hole (6).

6. A rotary table for lens coating according to claim 5, characterized in that: The bottom end of the rotating frame (3) is provided with a groove, the size of which is adapted to the outer diameter of the placement plate (4).

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