CN112170082A

CN112170082A - Full-automatic lens spraying machine and spraying method thereof

Info

Publication number: CN112170082A
Application number: CN202011087192.6A
Authority: CN
Inventors: 吴国强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-05

Abstract

The invention belongs to the technical field of lens processing, and discloses a full-automatic lens spraying machine which comprises a feeding and discharging conveying belt, a lens inserting frame positioning assembly, a 6-axis feeding and discharging robot, an annular jig track, a 4-axis spraying robot, a liquid medicine tray cart, an oven, a constant temperature and humidity system and the like; the tail end of the conveying belt is provided with a plug sheet frame positioning component which is responsible for positioning and detecting the material frame; the tail end of the 6-axis robot is provided with a picking piece and a liquid suction assembly; the tail end of the 4-axis spraying robot is provided with a spray head which can be quickly replaced; the oven adopts an infrared lamp component to realize constant-temperature pre-baking of the lens; the air-cooled constant temperature and humidity system ensures the temperature and humidity control of the spraying environment. Based on the robot curve motion control technology, the equipment can realize curved surface spraying, liquid absorption and prebaking of various lenses; spraying and prebaking of various types of lenses can be realized only by selecting different programs without replacing tools, and different liquid medicines can be quickly switched only by replacing the liquid medicine tray cart and the spray head assembly.

Description

Full-automatic lens spraying machine and spraying method thereof

Technical Field

The invention belongs to the technical field of lens processing, and particularly relates to a full-automatic lens spraying machine.

Background

At present: with the development of optical products, the application range of optical lenses is wider and wider. Accordingly, various methods are used in the industry to manufacture optical lenses to meet the market demands for optical lenses of different specifications, and mass production is performed to meet the demands for optical lenses in order to reduce the cost and improve the efficiency. Generally, the manufactured optical lens is subjected to a subsequent treatment to obtain good performance suitable for the application. The coating process is one of the important steps in the subsequent treatment, and the coating refers to coating a single-layer or multi-layer film on the surface of an optical element by a physical or chemical method, and realizing focusing, collimating, filtering, reflecting, refracting and other effects by utilizing the interference action generated by incident, reflected and transmitted light rays on the film interface.

In the production process of the functional coating of the lens, the traditional process is that the functional coating is sprayed manually, so that fine pores and flaws are easily generated, and the product reject ratio is high; or adopt artifical spraying type, the functional coating thickness is inhomogeneous, easily produces bubble, spot, and the product defective rate is on the high side, wastes a large amount of functional coating liquid medicine, and production efficiency is lower, can't realize the productivity breakthrough.

Through the above analysis, the problems and defects of the prior art are as follows:

firstly, the functional coating on the manual spray type is easy to generate fine pores and flaws, and the product reject ratio is high;

secondly, the thickness of the manually sprayed functional coating is uneven, bubbles and spots are easy to generate, the reject ratio of the product is high, a large amount of functional coating liquid medicine is wasted, the production efficiency is low, and the capacity breakthrough cannot be realized.

The difficulty in solving the above problems and defects is:

the manual operation is replaced, and a new process is adopted to control defects such as bubbles, pores, spots and the like.

The significance of solving the problems and the defects is as follows:

adopt automatic control, adopt the machine to spray, accurate control sprays function coating liquid medicine flow and time, realizes evenly going up the function coating, and the product quality obviously promotes, replaces traditional manual operation, and production efficiency obviously promotes, and the productivity greatly promotes, and manufacturing cost greatly reduces.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a full-automatic lens spraying machine.

The invention is realized in such a way that a full-automatic lens spraying machine comprises a feeding and discharging conveying belt, a lens inserting frame positioning assembly, a 6-axis feeding and discharging robot, an annular jig track, a 4-axis spraying robot, a liquid medicine tray cart, an oven, a constant temperature and humidity system and the like.

The apparatus first comprises two 3 meter long conveyor belts which are responsible for the feeding and discharging of the wafer cassettes. The tail end of the conveying belt is provided with a plug sheet frame positioning component which is responsible for positioning and detecting the material frame. The 6-axis robot has a pick and a pipetting assembly at the end. The tail end of the 4-axis spraying robot is provided with a spray head which can be quickly replaced. The liquid medicine tray cart comprises a liquid medicine recovery tray, a heat-preservation liquid medicine tank, a water cooling machine, a pump, a valve assembly, a pipeline, a filtering assembly and the like, and is integrally made into a cart. The apparatus contained a 3.5 meter long oven with an infrared lamp assembly to achieve constant temperature pre-bake of the lenses. The equipment also comprises a set of air-cooled constant-temperature and constant-humidity system to ensure the temperature and humidity control of the spraying environment. A plurality of air purifiers are fixed at the upper end of the external frame through bolts.

Another object of the present invention is to provide a spraying method of a full-automatic lens spraying machine, which comprises:

firstly, after equipment is powered on, an operator selects the lens model setting and the corresponding spraying parameters on a touch screen, and selects the spraying track of a robot;

placing a lens frame to be sprayed on a feeding conveyor belt, enabling the lens frame to reach a positioning position along with the conveyor belt, and detecting and positioning the lens frame by a positioning mechanism;

step three, moving and picking up the lenses by the 6-axis robot, picking up a row of lenses each time, namely picking up one lens for each time by goggles and masks, picking up 3 lenses for each time by common lenses, and hanging the lenses on a jig with an annular track;

driving the lens to reach a spray chamber by the annular track, starting the 4-axis robot, and spraying according to a pre-designed track;

after the spraying is finished, the annular guide rail drives the lens to flow to the liquid absorption position after the lens is leveled by the two stations, and the 6-axis robot finishes liquid absorption on the lower edge of the lens;

and step six, the lens is conveyed into an oven and is pre-baked for about 12 minutes by the oven, the lens is taken down from the annular guide rail by the 6-axis robot and is inserted into a new material frame again, and the material frame is conveyed out along with the discharging conveying belt after the material frame is fully inserted.

Further, the whole process of spraying, imbibition, prebaking, the lens all is fixed on ring rail's tool all the time, and tool removes a station at every turn, ensures the front-back connection of every a set of lens, has guaranteed the highest efficiency that sprays.

By combining all the technical schemes, the invention has the advantages and positive effects that:

the invention firstly can automatically detect and pick up the lens from the lens inserting frame; secondly, the equipment can perform single-side spraying on the lens according to a set track; then the equipment can also carry out the imbibition to the hydrops that sprays the back lens. Meanwhile, the equipment can be used for prebaking the lens for 10-15 minutes at a controllable temperature. The prebaked lens is inserted into the frame again and sent out. Different lenses are switched, and spraying and prebaking of various types of lenses can be realized only by selecting different programs without replacing tools. Different liquid medicines are replaced, and the quick switching can be realized only by replacing the liquid medicine tray cart and the spray head assembly. The invention is based on the robot curve motion control technology, and the equipment can realize the curved surface spraying, liquid absorption and prebaking of various lenses.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained from the drawings without creative efforts.

Fig. 1 is a schematic structural view of a full-automatic lens spraying machine provided by an embodiment of the invention.

Fig. 2 is a schematic structural diagram of a feeding and discharging conveyor belt provided by the embodiment of the invention.

Fig. 3 is a schematic view of a track structure of an annular jig according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a 4-axis spraying robot provided by the embodiment of the invention.

Fig. 5 is a schematic structural diagram of a positioning assembly of an insert sheet frame according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a liquid medicine tray cart according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a U-shaped direct-insertion type blade handle according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a universal type insert sheet frame according to an embodiment of the present invention.

In the figure: 1. an outer frame; 2. a feeding and discharging conveyor belt; 3. 6-axis feeding and discharging robot; 4. an annular jig track; 5. 4-axis spraying robot; 6. a liquid medicine tray cart; 7. a card frame positioning assembly; 8. a U-shaped direct insertion type sheet handle; 9. a card insertion frame; 10. an air purifier.

Fig. 9 is a flowchart of a spraying method provided in an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Aiming at the problems in the prior art, the invention provides a full-automatic lens spraying machine, which is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 8, the full-automatic lens spraying machine provided by the embodiment of the invention includes a feeding and discharging conveyor belt 2, an insert frame positioning component 7, a 6-axis feeding and discharging robot 3, an annular jig track 4, a 4-axis spraying robot 5, a liquid medicine tray cart 6, an oven, a constant temperature and humidity system, and the like.

The apparatus first comprises two 3 meter long conveyor belts which are responsible for the feeding and discharging of the wafer cassettes. The tail end of the conveying belt is provided with a plug sheet frame positioning component which is responsible for positioning and detecting the material frame. The 6-axis robot has a pick and a pipetting assembly at the end. The tail end of the 4-axis spraying robot is provided with a spray head which can be quickly replaced. The liquid medicine tray cart comprises a liquid medicine recovery tray, a heat-preservation liquid medicine tank, a water cooling machine, a pump, a valve assembly, a pipeline, a filtering assembly and the like, and is integrally made into a cart. The apparatus contained a 3.5 meter long oven with an infrared lamp assembly to achieve constant temperature pre-bake of the lenses. The equipment also comprises a set of air-cooled constant-temperature and constant-humidity system to ensure the temperature and humidity control of the spraying environment. The lens is hung on the jig arranged on the annular jig track through the U-shaped direct insertion type lens handle. A plurality of air cleaners 7 are fixed to the upper end of the outer frame 1 by bolts.

Firstly, the equipment can automatically detect and pick up the lens from the lens inserting frame; secondly, the equipment can perform single-side spraying on the lens according to a set track; then the equipment can also carry out the imbibition to the hydrops that sprays the back lens. Meanwhile, the equipment can be used for prebaking the lens for 10-15 minutes at a controllable temperature. The prebaked lens is inserted into the frame again and sent out. Different lenses are switched, and spraying and prebaking of various types of lenses can be realized only by selecting different programs without replacing tools. Different liquid medicines are replaced, and the quick switching can be realized only by replacing the liquid medicine tray cart and the spray head assembly.

The specific target parameters are as follows:

1. object: various types of lenses;

2. the functions are as follows: realizing automatic picking, spraying, imbibing, pre-drying and inserting;

3. efficiency: the spraying time of different lenses is changed, and the spraying switching interval of the front lens and the rear lens is less than 2 seconds;

4. yield: greater than 90%; (the yield is out of the range if the lens provided by the second party is contaminated to cause a defect on the premise that the surface of the lens is not contaminated.)

5. Duration: the equipment can run continuously for 24 hours;

6. the operation is as follows: 1 worker can watch 4-8 machines;

parameters of the equipment

1. The external dimension is as follows: length, width, height =5.8, 1.5, 2.3 (meter)

Description of the drawings: the external dimension is approximate, and the specific size is finally subject to the real object;

2. power consumption amount: 12KW

Description of the drawings: the working speed of the equipment is regulated to the fastest speed, all equipment such as heating pipes, constant temperature and humidity machines, water cooling machines and the like are opened, and the average power of the equipment is about 12 KW.

3. Gas consumption: 20L/min

Description of the drawings: the air consumption is the average air consumption and can be different according to the change of the use condition;

4. water consumption: 1L/hour

Description of the drawings: the water consumption is average water consumption, and the main water consumption equipment is a constant temperature and humidity machine;

5. exhaust volume: 120L/min

Description of the drawings: the air beating amount is the air exhaust of the air-cooled constant temperature and humidity machine and the air exhaust of the water chilling unit;

6. noise: 45 dB.

As shown in fig. 9, the spraying method of the fully automatic lens spraying machine provided by the embodiment of the present invention includes:

s101, after the equipment is powered on, an operator selects the lens model setting and the corresponding spraying parameters on the touch screen, and selects the spraying track of the robot;

s102, placing a lens frame to be sprayed on a feeding conveyor belt, enabling the lens frame to reach a positioning position along with the conveyor belt, and detecting and positioning the lens frame by a positioning mechanism;

s103, moving and picking up the lenses by the 6-axis robot, picking up a row of lenses each time, namely picking up one lens for each time by goggles and masks, picking up 3 lenses for each time by common lenses, and hanging the lenses on a jig with an annular track;

s104, the annular track drives the lens to reach a spray chamber, the 4-axis robot is started, and spraying is carried out according to a pre-designed track;

s105, after spraying, the annular guide rail drives the lens to flow to the liquid absorption position after leveling of the two stations, and a 6-axis robot finishes liquid absorption on the lower edge of the lens;

s106, the lens is sent into an oven and is pre-baked for about 12 minutes in the oven, the 6-axis robot takes the lens off the annular guide rail and reinserts a new material frame, and when the material frame is fully inserted, the material frame is sent out along with the discharging conveyer belt.

In this embodiment, spray, imbibition, dry in advance the whole process, the lens all the time all is fixed on ring rail's tool, and tool removes a station at every turn, ensures linking all around of every a set of lens, has guaranteed the highest efficiency that sprays.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The above description is only for the purpose of illustrating the present invention and the appended claims are not to be construed as limiting the scope of the invention, which is intended to cover all modifications, equivalents and improvements that are within the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a full-automatic lens spraying machine, includes external frame, its characterized in that, external frame is inside to be provided with:

the feeding and discharging conveying belt is used for driving the feeding and discharging of the inserting piece frame;

the inserting sheet frame positioning module is used for positioning the inserting sheet frame on the feeding and discharging conveying belt and detecting the material frame;

the picking piece and liquid suction module is arranged at the tail end of the 6-axis robot and used for automatically detecting and picking the lens and sucking the liquid accumulated in the sprayed lens;

the annular jig track is used for driving the lens to move;

the spraying module is used for spraying the lens through a 4-axis spraying robot;

the liquid medicine tray cart is used for containing liquid medicine for spraying;

and the pre-baking module is used for realizing constant-temperature pre-baking of the lens through an infrared lamp assembly in the oven.

2. The automatic lens spraying machine according to claim 1, wherein the lens is hung on the jig on the annular jig rail by a U-shaped direct insertion type blade handle.

3. The fully automatic lens spraying machine of claim 1, wherein the 4-axis spraying robot has a fast replaceable spray head at the end.

4. The lens full-automatic spraying machine according to claim 1, further comprising an air-cooled constant temperature and humidity module for controlling the temperature and humidity of the spraying environment.

5. The lens full-automatic spray machine according to claim 1, wherein the liquid medicine tray cart comprises a liquid medicine recovery tray, a heat preservation liquid medicine tank, a water chiller, a pump and valve assembly, a pipeline and a filtering assembly.

6. The lens full-automatic spray machine according to claim 1, wherein a plurality of air cleaners are fixed to the upper end of the outer frame by bolts.

7. A spraying method for the fully automatic lens spraying machine according to any one of claims 1 to 6, characterized in that the spraying method comprises the following steps:

step three, moving the 6-axis robot and picking up the lens, and hanging the lens on a jig of the annular track;

8. The spraying method of claim 7, wherein the lenses are fixed on the jig of the circular guide rail all the time during the whole process of spraying, imbibing and pre-baking, and the jig moves one station each time to ensure the front-to-back connection of each group of lenses.

9. The spraying method of claim 7, wherein in step three, the 6-axis robot picks one row of lenses at a time, namely, the goggles and the face mask pick one row at a time, and the normal lenses pick 3 lenses at a time.