Coating equipment for spectacle lenses

Abstract

The coating equipment comprises a main body, a mounting cavity is formed in the main body, a rotary drum is rotationally arranged in the mounting cavity, a fixing plate is coaxially and rotationally assembled in the rotary drum, a bearing table is arranged on the upper end face of the fixing plate, a lens positioning groove is formed in the upper end of the bearing table, and a lens positioning groove is formed in the lower end of the lens positioning groove. A lens clamping module is arranged in the lens positioning groove; a fixing plate is arranged on the bearing table, a movable frame is arranged above the fixing plate, a limiting clamp is arranged on the side, facing the lens positioning groove, of the movable frame, and a driving air cylinder is arranged on the fixing plate and used for driving the movable frame to reciprocate in the direction perpendicular to the bearing table. Therefore, the cleaning efficiency is improved and the lens is protected from being damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spectacle lens coating, particularly to a coating equipment for spectacle lens. BACKGROUND

[0002] The eye coating process is a technology of adding one or more layers of thin film on the surface of the lens to improve the performance of the lens, such as anti-reflection, anti-scratch, waterproof, anti-ultraviolet, etc. The general spectacle coating process includes cleaning the lens, coating the primer, vacuum coating, curing treatment, quality inspection and packaging, etc.

[0003] The Chinese patent with publication number CN222491241U discloses a coating equipment for spectacle lenses, which includes a main body, an installation cavity is formed in the main body, a rotating drum is rotatably arranged in the installation cavity, and a cleaning liquid is placed in the rotating drum; a power mechanism is installed in the installation cavity, and the power mechanism is in transmission connection with the rotating drum; a fixed plate is sealingly and rotatably matched with the rotating drum, the fixed plate is coaxially fixedly connected with a fixed column, the fixed column penetrates through the rotating drum and is fixedly connected with the main body; the rotating drum is rotatably arranged on the fixed column; a rotating shaft is rotatably arranged on the fixed plate, a storage box is installed on the rotating shaft, a clamping piece is arranged in the storage box, and the clamping piece clamps the lens; the clamping piece includes a bolt and two clamping plates; during the lens fixing process, the lens needs to be placed between the two clamping plates in the rectangular frame of the storage box, then the bolt is screwed, the bolt pushes the connected clamping plate to slide and approach the other clamping plate. When the lens enters the accommodation groove and is clamped by the two clamping plates, the screwing of the bolt is stopped, then the storage box is installed on the rotating shaft through the two connecting blocks of the storage box to form a clamping connection, and the rotating drum and the rotating shaft are in transmission connection through a linkage assembly. The power mechanism and the linkage assembly can not only drive the rotating drum to rotate, but also drive the rotating shaft to rotate, one driving source has two functions, the structure is simple, the manufacturing cost is greatly reduced, and the economic benefit is improved.

[0004] Based on the above technical features, the problems are:

[0005] 1. The design of manually clamping the clamping piece one by one seriously restricts the batch production efficiency. The operator needs to repeatedly perform the process of "placing the lens → aligning the accommodation groove → tightening the bolt", and the time consumed for single clamping is about 15-30 seconds. If 10 lenses are accommodated in a single storage box, the time consumed for clamping is 3-5 minutes. In the large-scale production scene, this will form a significant efficiency bottleneck.

[0006] 2. The physical limiting mode of relying on manual experience to adjust the bolt has significant disadvantages: over-tightening risk and over-loose risk. When the bolt is screwed too deep, the pressure applied by the clamping plate may exceed the yield strength of the lens material, causing micro-cracks or deformation on the edge of the lens. When the clamping force is insufficient, the lens is easy to displace or even fall off in the high-speed rotation of the rotating drum, causing damage to the lens or the lens flying out of the clamping piece. UTILITY MODEL CONTENTS

[0007] The utility model discloses a kind of coating equipment for spectacle lens, the equipment can realize the automatic clamping of lens, batch processing and accurate clamping force control, to improve cleaning efficiency and protect lens from being damaged.

[0008] The above technical purpose of the utility model is realized by the following technical scheme: a coating equipment for spectacle lens, comprising a main body, the main body is provided with a mounting cavity, a rotating drum is rotatably arranged in the mounting cavity, a fixed plate is coaxially rotatably assembled in the rotating drum, a bearing table is arranged on the upper end surface of the fixed plate, a lens positioning groove is provided on the upper end of the bearing table, and a lens clamping module is arranged in the lens positioning groove;A moving frame is provided above the fixed plate, a limiting clamp is arranged on the side of the moving frame facing the lens positioning groove, a drive cylinder is arranged on the fixed plate, for driving the reciprocating motion of the moving frame in the direction perpendicular to the bearing table.

[0009] By adopting the above technical scheme, through the setting of the limiting clamp, the limiting clamp can provide stable clamping force through the combined movement of the self-adapting clamping jaw and the pneumatic push rod, ensuring that the lens does not fall off in the high-speed rotating rotating drum. This stable clamping force not only protects the lens from being damaged, but also ensures the uniformity and consistency of the cleaning process; the lens can be automatically clamped by the lens clamping module, and the reciprocating motion of the moving frame is controlled by the drive cylinder, realizing the rapid positioning and fixing of the lens, thereby improving the production efficiency.

[0010] Further setting is that: the lens positioning groove is provided with a plurality of lens positioning grooves, and the lens positioning grooves are arranged in a ring shape; a positioning assembly is arranged between the moving frame and the bearing table, for ensuring the accurate alignment of each lens positioning groove and the limiting clamp.

[0011] By adopting the above technical scheme, the ring-shaped arrangement of multiple lens positioning grooves enables the equipment to orderly take and place lenses, while processing multiple lenses, significantly improving batch production efficiency; the setting of the positioning assembly ensures the accurate alignment of each lens positioning groove and the limiting clamp, avoiding the tedious operation of manual adjustment.

[0012] Further setting is that: the positioning assembly comprises a positioning column arranged on the lower end surface of the moving frame and a guide groove arranged on the bearing table and located directly below the positioning column, the positioning column and the guide groove are in sliding fit, for guiding the relative movement of the moving frame and the bearing table, ensuring the accurate alignment of the lens positioning groove and the limiting clamp.

[0013] By adopting the above technical scheme, the sliding fit design of the positioning column and the guide groove makes the movement of the moving frame more stable and accurate, further improving the accuracy of lens positioning.

[0014] Further arrangement: the clamping module comprises self-adaptive clamping jaws, a pneumatic push rod for controlling the opening and closing of the self-adaptive clamping jaws, and a gas pressure control unit for controlling the pneumatic push rod.

[0015] By adopting the above technical scheme, the combination of the self-adaptive clamping jaws and the pneumatic push rod realizes automatic clamping of the lens, reduces manual intervention, and improves operation efficiency; the use of the gas pressure control unit makes the adjustment of the clamping force more accurate and reliable.

[0016] Further arrangement: a force sensing unit for detecting the clamping force in real time is arranged on the self-adaptive clamping jaws, for monitoring the clamping force and feeding back data to the gas pressure control unit to adjust the clamping force.

[0017] By adopting the above technical scheme, the arrangement of the force sensing unit enables real-time monitoring and adjustment of the clamping force, avoiding lens damage or falling caused by excessive or insufficient clamping force.

[0018] Further arrangement: the surface of the self-adaptive clamping jaws is coated with an elastic material layer, which can automatically conform to the curvature of the lens to uniformly distribute the clamping force and protect the lens surface.

[0019] By adopting the above technical scheme, the design of the elastic material layer enables the clamping jaws to adapt to lenses of different curvatures, uniformly distribute the clamping force, and avoid damage to the lens surface caused by excessive local pressure.

[0020] Further arrangement: an alarm is arranged on the outside of the main body, and the force sensing unit is provided with an over-limit alarm function; when it is detected that the clamping force exceeds the preset range, the gas pressure control unit automatically releases the gas pressure of the pneumatic push rod and triggers the alarm.

[0021] By adopting the above technical scheme, the over-limit alarm function can issue an alarm and automatically release the gas pressure in a timely manner when the clamping force is abnormal, effectively preventing lens damage and improving the safety and reliability of the equipment.

[0022] Further arrangement: a position detection sensor is installed at the bottom of the lens positioning groove, for detecting whether the lens is placed in place and feeding back the detection signal to the gas pressure control unit.

[0023] By adopting the above technical scheme, the arrangement of the position detection sensor ensures the accuracy of lens placement and avoids cleaning quality problems caused by improper lens placement. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a half sectional view of the present embodiment;

[0025] Fig. 2 It is a partial view of the internal structure of the present embodiment;

[0026] Fig. 3 is a sectional view of the clamping module of the embodiment;

[0027] Fig. 4 is a perspective view of the embodiment;

[0028] In the figure: 1, main body; 11, mounting cavity; 12, rotating drum; 13, fixed plate; 14, bearing table; 141, lens positioning groove; 2, clamping module; 15, moving frame; 151, limiting clamp; 16, driving cylinder; 17, cover plate; 171, display window; 18, gear ring; 181, second gear; 182, motor; 3, positioning assembly; 31, positioning column; 32, guide groove; 21, self-adaptive clamping jaw; 22, pneumatic push rod; 23, air pressure control unit; 4, force sensing unit; 5, elastic material layer; 6, alarm; 7, position detection sensor. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail below in combination with the drawings.

[0030] Reference Figs. 1 to 4 A coating equipment for spectacle lenses, comprising a main body 1, a cover plate 17 is assembled on the top of the main body 1, a display window 171 is cut on the cover plate, which facilitates observing the rinsing degree of the lens, the main body 1 is provided with a mounting cavity 11, a rotating drum 12 is rotatably arranged in the mounting cavity 11, and the rotating drum 12 contains cleaning liquid for rinsing the lens; a second gear 18 is arranged in the mounting cavity 11, a gear ring 18 is welded to the bottom of the rotating drum 12, the gear ring 18 is engaged with the second gear 18, a motor 182 is bolted to the bottom of the mounting cavity 11, the output end of the motor 182 is connected to the second gear 18, and the motor 182 is used to drive the rotation of the rotating drum 12; a fixed plate 13 is coaxially rotatably arranged at the bottom end of the inner cavity of the rotating drum 12, a bearing table 14 is fixedly arranged on the upper end face of the fixed plate 13, a lens positioning groove 141 is formed in the upper end of the bearing table 14, and the lens positioning groove 141 is used for placing the lens; a lens clamping module 2 is arranged in the lens positioning groove 141 and is used for automatically clamping the lens; a moving frame 15 is arranged above the fixed plate 13, a limiting clamp 151 is arranged on the side of the moving frame 15 facing the lens positioning groove 141, a driving cylinder 16 is fixedly arranged on the upper end of the fixed plate 13, the push rod of the driving cylinder 16 is fixedly connected with the moving frame 15, and the driving cylinder 16 is used to drive the reciprocating movement of the moving frame 15 in the direction perpendicular to the bearing table 14.

[0031] The lens positioning groove 141 is provided with a plurality of lens positioning grooves 141 arranged in a ring shape; the moving frame 15 and the bearing table 14 are provided with a positioning assembly 3 for ensuring the accurate alignment of each lens positioning groove 141 and the limiting clamp 151. The positioning assembly 3 includes a positioning column 31 arranged on the lower end surface of the moving frame 15 and a guide groove 32 arranged on the bearing table 14 below the positioning column 31, the positioning column 31 and the guide groove 32 are in sliding fit, for guiding the relative movement of the moving frame 15 and the bearing table 14, ensuring the accurate alignment of the lens positioning groove 141 and the limiting clamp 151.

[0032] The clamping module 2 includes an adaptive clamping jaw 21, a pneumatic push rod 22 for controlling the opening and closing of the adaptive clamping jaw 21, and a gas pressure control unit 23 for controlling the gas pressure of the pneumatic push rod 22, the gas pressure control unit 23 is arranged outside the main body 1, for controlling the gas pressure of the pneumatic push rod 22, adjusting the clamping force; the adaptive clamping jaw 21 is provided with a force sensing unit 4 for detecting the clamping force in real time, for monitoring the clamping force and feeding back the data to the gas pressure control unit 23, to adjust the clamping force. The force sensing unit 4 adopts a force sensor of model HX711, which can accurately measure the clamping force and transmit the data to the gas pressure control unit 23 in real time, the signal of the gas pressure control unit 23 is connected with a display screen, which adjusts the gas pressure according to the touch of the numerical parameter two.

[0033] The surface of the adaptive clamping jaw 21 is coated with an elastic material layer 5, which is made of silica gel material, which can automatically fit with the lens curvature to evenly distribute the clamping force and protect the lens surface.

[0034] The main body 1 is fixedly provided with an alarm 6, and the force sensing unit 4 is provided with an over-limit alarm function, when the clamping force is detected to exceed the preset range, the gas pressure control unit 23 automatically releases the gas pressure of the pneumatic push rod 22, and triggers the alarm 6. The alarm 6 adopts a sound and light alarm of model KY-012, which can emit sound and light alarm signals when the clamping force is over limit.

[0035] The position detection sensor 7 is fixedly installed at the bottom of the lens positioning groove 141, for detecting whether the lens is placed in place, and feeding back the detection signal to the gas pressure control unit 23. The position detection sensor 7 adopts a photoelectric sensor of model E3Z-D61, which can accurately detect the position of the lens and feed back the signal to the gas pressure control unit 23.

[0036] The driving cylinder 16 adopts a cylinder of model CDM2B20-50, which can accurately control the reciprocating movement of the moving frame 15. The gas pressure control unit 23 adopts a pressure regulator of model SMC ITV2050-212N, which can accurately adjust the gas pressure of the pneumatic push rod 22 according to the feedback signal of the force sensing unit 4, to ensure that the clamping force is within the preset range.

[0037] Whole workflow and principle:

[0038] After the equipment is powered on, the system performs self-checking to ensure that each component (driving cylinder, air pressure control unit, force sensing unit, position detection sensor, etc.) is working normally. The air pressure control unit 23 is initialized, and the preset range of clamping force is set. The rotating drum 12 and the fixed plate 13 are reset to ensure that the bearing table 14 is in the initial position.

[0039] The operator places the lens to be cleaned one by one in the lens positioning groove 141 on the bearing table 14. The position detection sensor 7 detects in real time whether the lens is placed in place. If the lens is not placed in place, the system sends a prompt signal through the alarm 6. When all the lenses are placed, the operator confirms that the lens loading is complete.

[0040] The air pressure control unit 23 starts to control the pneumatic push rod 22 to push the adaptive clamping jaw 21 to close and clamp the lens. The force sensing unit 4 monitors the clamping force in real time and feeds back the data to the air pressure control unit 23. If the clamping force exceeds the preset range, the air pressure control unit 23 automatically adjusts the air pressure of the pneumatic push rod 22 to ensure that the clamping force is moderate. If the clamping force continues to exceed the limit, the system triggers the alarm 6 to sound and light alarm and automatically releases the air pressure of the pneumatic push rod 22 to prevent damage to the lens.

[0041] The driving cylinder 16 starts to push the moving frame 15 to move in a direction perpendicular to the bearing table 14. The positioning column 31 in the positioning assembly 3 cooperates with the guide groove 32 to ensure that the moving frame 15 and the bearing table 14 are accurately aligned, so that the limiting clamp 151 is aligned with the lens positioning groove 141. After the system confirms that the lens positioning is completed, it enters the cleaning preparation stage.

[0042] The motor 182 drives the rotation of the rotating drum 12, and the rotating drum 12 starts to rotate, driving the fixed plate 13 and the bearing table 14 to rotate synchronously. The cleaning liquid is filled in the rotating drum 12. During the cleaning process, the force sensing unit 4 continuously monitors the clamping force to ensure that the lens remains stable during rotation.

[0043] After cleaning is completed, the rotating drum 12 stops rotating, and the system enters the unloading stage. The air pressure control unit 23 controls the pneumatic push rod 22 to loosen the adaptive clamping jaw 21 and release the lens. The operator takes out the cleaned lens from the lens positioning groove 141. The position detection sensor 7 detects whether the lens is completely unloaded, and if not, the system sends a prompt through the alarm 6.

[0044] The equipment is automatically reset, and the rotating drum 12 and the fixed plate 13 return to the initial position for the next cleaning process.

[0045] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model. A person skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, the modifications are protected by the Patent Law.

Claims

1. A coating apparatus for spectacle lenses, comprising a main body (1), wherein the main body (1) has a mounting cavity (11), and a rotating cylinder (12) is rotatably disposed within the mounting cavity (11), characterized in that: A fixed plate (13) is coaxially mounted inside the rotating drum (12). A support platform (14) is provided on the upper surface of the fixed plate (13). A lens positioning groove (141) is provided on the upper end of the support platform (14). A lens clamping module (2) is provided in the lens positioning groove (141). A movable frame (15) is provided above the fixed plate (13). A limit clamp (151) is provided on the side of the movable frame (15) facing the lens positioning groove (141). A drive cylinder (16) is provided on the fixed plate (13) for driving the movable frame (15) to reciprocate in a direction perpendicular to the support platform (14).

2. The coating equipment for spectacle lenses according to claim 1, characterized in that: Multiple lens positioning slots (141) are provided, and the lens positioning slots (141) are arranged in a ring at intervals; a positioning component (3) is provided between the moving frame (15) and the support platform (14) to ensure that each lens positioning slot (141) is precisely aligned with the limiting clamp (151).

3. The coating equipment for spectacle lenses according to claim 2, characterized in that: The positioning component (3) includes a positioning post (31) disposed on the lower end face of the movable frame (15) and a guide groove (32) disposed on the support platform (14) and located directly below the positioning post (31). The positioning post (31) and the guide groove (32) are slidably engaged to guide the relative movement of the movable frame (15) and the support platform (14) to ensure that the lens positioning groove (141) and the limiting clamp (151) are accurately aligned.

4. The coating equipment for spectacle lenses according to claim 1, characterized in that: The clamping module (2) includes an adaptive gripper (21), a pneumatic push rod (22) for controlling the opening and closing of the adaptive gripper (21), and a pneumatic control unit (23) for controlling the pneumatic push rod (22).

5. A coating apparatus for spectacle lenses according to claim 4, characterized in that: The adaptive gripper (21) is equipped with a force sensing unit (4) for real-time detection of clamping force, which is used to monitor the clamping force and feed the data back to the air pressure control unit (23) to adjust the clamping force.

6. A coating apparatus for spectacle lenses according to claim 4, characterized in that: The adaptive gripper (21) is covered with an elastic material layer (5), which can automatically conform to the curvature of the lens to evenly distribute the clamping force and protect the lens surface.

7. A coating apparatus for spectacle lenses according to claim 5, characterized in that: An alarm (6) is provided on the outside of the main body (1). The force sensing unit (4) is equipped with an over-limit alarm function. When the clamping force exceeds the preset range, the air pressure control unit (23) automatically releases the air pressure of the pneumatic push rod (22) and triggers the alarm (6).

8. A coating apparatus for spectacle lenses according to claim 1, characterized in that: A position detection sensor (7) is installed at the bottom of the lens positioning groove (141) to detect whether the lens is placed in place and to feed the detection signal back to the air pressure control unit (23).

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