CN113278942A

CN113278942A - Coating equipment for optical lens

Info

Publication number: CN113278942A
Application number: CN202110562038.8A
Authority: CN
Inventors: 陈旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2021-08-20

Abstract

The invention discloses coating equipment for optical lenses, which comprises a coating box main body, wherein a motor is arranged at the upper end of the coating box main body, a sleeve is arranged at the lower end of the motor, a lens fixing device is hung at the lower end of the sleeve, the fixing device consists of a fixing disc and a tray, the fixing disc is in sliding connection with the tray, a connecting shaft is arranged at the center of the fixing disc, the connecting shaft is inserted into the sleeve and is fixedly connected with the sleeve, a fixing groove is formed in the fixing disc, a positioning block is arranged on the upper end face of the tray, a coating liquid containing box is arranged on the inner end face of the bottom of the coating box main body, and a vacuum pumping opening is formed in the top of the coating box main body. The lens fixing device fixes the lens by the expansion of the fixing rubber ring under the negative pressure condition, has the advantages of simple structure, firm structure, lower cost and lower occupied space, avoids the lens from falling off, is convenient for the fixing device to be quickly disassembled and assembled by the sleeve and the connecting shaft structure which are in sliding connection, and greatly improves the lens assembling efficiency.

Description

Coating equipment for optical lens

Technical Field

The invention belongs to the technical field of lens coating, and particularly relates to coating equipment for an optical lens.

Background

The coating film of optical lens generally adopts vacuum coating, specifically for will need the degree optical lens of membrane place in the vacuum cavity, then the staff inlays the lens in the mounting groove of coating plate, the coating plate is installed on rotatory adding the frame, places the coating material in the vacuum cavity again, heats the coating material through the intensification and makes its sublimation, and sublimed coating film just can rise and adsorb on optical lens, then forms the film on optical lens's surface.

However, the existing coating device can only perform single-side coating, and each lens needs to be turned over manually, so that the problems of low working efficiency, easy damage of coating and the like exist, the coating material may be harmful to skin, and some coating devices with turning structures exist, but the problem of low working efficiency also exists, and the coating devices with turning structures are complex in structure and are not suitable for coating optical lenses with different sizes.

The utility model discloses an optical lens coating device based on vacuum in the notice number CN110284116A, includes the casing, the inside lower surface of casing is connected with the carousel, and the inside of carousel is provided with a cylinder section of thick bamboo, and the inboard of a cylinder section of thick bamboo is connected with the internal connection pole, and the middle part of internal connection pole is connected with variable resistance, and the outside of a cylinder section of thick bamboo is connected with the outer joint rod, and the support that is connected with of outer joint rod, the upper end of fixed permanent magnet and removal permanent magnet is provided with the elasticity hoop.

The vacuum-based optical lens coating device disclosed above fixes an optical lens by a permanent magnet, and clamps two ends of the lens by the suction force of the permanent magnet, so that the upper and lower end surfaces of the lens are exposed to achieve the effect of double-sided coating, but the lens usually needs a motor to drive the lens to rotate in the coating process to achieve the effect of uniform coating, so that the lens can be subjected to centrifugal force in the operation process of the device, so that the centrifugal force can compete with the suction force of the permanent magnet, the lens is easy to slip off, and the lens is fixed by clamping the upper and lower end surfaces of the lens in the existing device, so that the coating effect of the edge of the lens is poor, or the edge of the lens is clamped by adopting complex precision equipment, so that the fixing device cannot be taken out, the lens needs to be installed in a vacuum box, not only is inconvenient to install, but also the human body carries dust to enter the vacuum box, affecting the quality of the coating film.

Disclosure of Invention

The invention aims to provide coating equipment for an optical lens, which aims to solve the problems that in the prior art, the lens is not fixed firmly by the lens coating equipment or the lens is not convenient to mount because a fixing device shields the lens.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a coating equipment of optical lens piece, includes coating film case main part, the upper end of coating film case main part is provided with the motor, the lower extreme of motor is provided with the sleeve, lens fixing device has hung to telescopic lower extreme, fixing device comprises fixed disk and tray, fixed disk and tray sliding connection, the center of fixed disk is provided with even axle, even the axle insert in the sleeve with sleeve fixed connection, be provided with the fixed slot on the fixed disk, the up end of tray is provided with the locating piece, the terminal surface is provided with coating film liquid and holds the case in the bottom of coating film case main part, the top of coating film case main part is provided with the vacuum pump outlet.

Preferably, the sleeve is cylindrical tubular structure, be provided with the spout on the sleeve, even epaxial slider that is provided with, even axle and sleeve pass through slider and spout cooperation sliding connection, and sliding connection's even axle and sleeve make things convenient for fixing device to install fast and dismantle, have promoted equipment assembly speed greatly.

Preferably, the sliding groove is a J-shaped notch, the sliding block is a cylindrical protruding block, and the sliding block slides into the bottom of the sliding groove to enable the connecting shaft and the sleeve to be fixed in an interlocking mode.

Preferably, the fixed slot is a plurality of circular shape notches, the fixed slot is symmetrical about overlooking circle center of the fixed disk, the lower end face of the fixed slot is flush with the upper end face of the tray, and the tray supports the lenses in the fixed slot and fixes the lenses during convenient use.

Preferably, the upper end surface of the positioning block is of a spherical structure, and the fixing groove coincides with the overlooking center of the positioning block, so that the lower end surface of the lens is attached to the positioning block after the lens is placed in the fixing groove, the overlooking center of the lens coincides with the overlooking center of the fixing groove, the distances between each point of the side end surface of the lens and the inner end surface of the fixing groove are equal, and the stability of fixing is improved.

Preferably, a rubber sleeve groove is formed in the side end face of the fixing groove and is an annular notch, the rubber sleeve groove is in through connection with the fixing groove, a fixed rubber ring is arranged in the rubber sleeve groove, an annular hollow structure of the fixed rubber ring is formed, air is filled in the fixed rubber ring, the fixed rubber ring is compressed in the rubber sleeve groove under normal pressure, and when the device runs, vacuum negative pressure is formed in the coating box body, so that the air pressure inside the fixed rubber ring is greater than the external air pressure, the fixed rubber ring expands outwards to extrude the side end face of the lens, and the lens is fixed in the fixing groove.

Preferably, the fixed rubber ring is made of natural latex, and is high in material strength, large in elasticity and uniform in thickness.

Preferably, the up end in gum cover groove is provided with the access cover, the outer terminal surface of access cover is provided with the external screw thread, the side end face in gum cover groove is provided with the internal thread, the access cover passes through internal thread and external screw thread fit threaded connection with the gum cover groove, and the access cover is convenient overhauls and is changed fixed rubber circle, and threaded connection avoids fixed rubber circle to jack up the access cover under the negative pressure state.

Preferably, the lower end face of the connecting shaft is provided with a sliding hole, the center of the upper end face of the tray is provided with a piston, the piston is inserted into the sliding hole and is connected with the sliding hole in a sliding and rotating mode, the tray is connected in a sliding mode and can move up and down, the tray slides to the top of the sliding hole to support the lens when the lens is required to be supported, and slides to the bottom of the sliding hole when the lens is not required to be supported, and the lens is prevented from being shielded from affecting the film coating effect.

Preferably, the tray is cellular stainless steel plate, and cellular structure avoids it to influence the coating liquid and rises, influences the coating effect, and cellular structure's tray can stir coating film case main part inside air when rotating, has promoted coating liquid distribution uniformity.

Preferably, the depth of the slide hole is greater than the length of the piston, the slide hole is in sealing connection with the piston, a negative pressure environment is formed between the upper end face of the slide hole and the lower end face of the piston, the piston is inserted into the top of the slide hole under normal pressure, the tray supports the lens, when the device is used, a vacuum environment is formed in the coating box main body, the piston slides downwards, the tray is separated from the fixed disc, the fixed rubber ring is preferentially expanded due to positive pressure due to the fact that negative pressure exists between the piston and the slide hole, and then the piston is separated from the slide hole.

Preferably, a filter is arranged in the vacuum pumping port, the pore diameter of the filter is smaller than the molecular diameter of the coating liquid, the loss of the coating liquid is avoided, and meanwhile the coating liquid is prevented from damaging the vacuum pump.

Preferably, the motor is of the type EM 2333T.

Compared with the prior art, the invention has the beneficial effects that: the lens fixing device fixes the lens by the expansion of the fixing rubber ring under the negative pressure condition, has simple and convenient structure, firm structure, lower cost and lower occupied space, greatly increases the surface space utilization rate of the fixing device, and ensures that the lens is uniformly transferred by the fixing rubber ring under the centrifugal force in the rotating process of the fixing frame to avoid the lens from falling off.

Drawings

FIG. 1 is a front cross-sectional view of the overall structure of the present invention;

FIG. 2 is a front cross-sectional view of the fastening device of the present invention;

FIG. 3 is a schematic view of the fitting structure of the sleeve and the coupling shaft according to the present invention;

FIG. 4 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

fig. 5 is an enlarged view of the invention at B in fig. 1.

In the figure: 1 coating box main body, 11 motors, 12 vacuum pumping ports, 121 filters, 13 coating liquid containing boxes, 14 sleeves, 141 chutes, 2 fixing devices, 21 fixing discs, 211 fixing grooves, 212 connecting shafts, 2121 sliding blocks, 2122 sliding holes, 213 rubber sleeve grooves, 214 fixing rubber rings, 215 access covers, 22 trays, 221 pistons and 222 positioning blocks.

Detailed Description

Referring to fig. 1, a coating apparatus for optical lenses includes a coating box main body 1, a motor 11 is installed at an upper end of the coating box main body 1, a sleeve 14 is keyed to a lower end of the motor 11, a lens fixing device 2 is hung at a lower end of the sleeve 14, the fixing device 2 is composed of a fixed disk 21 and a tray 22, the fixed disk 21 is slidably connected with the tray 22, a connecting shaft 212 is welded at a center of the fixed disk 21, the connecting shaft 212 is inserted into the sleeve 14 and fixedly connected with the sleeve 14, a fixing groove 211 is formed in the fixed disk 21, a positioning block 222 is welded on an upper end face of the tray 22, a coating liquid containing box 13 is placed on an inner end face of a bottom of the coating box main body 1, and a vacuum pumping port 12 is welded on a top of the coating box main body 1.

Referring to fig. 1, a filter 121 is installed in the vacuum pumping port 12 through a screw thread, and the pore diameter of the filter 121 is smaller than the molecular diameter of the coating solution, so as to prevent the coating solution from running off and damage the vacuum pump.

Referring to fig. 2, the fixing grooves 211 are circular notches, the fixing grooves 211 are symmetrical with respect to the center of an overlooking circle of the fixing disc 21, the lower end faces of the fixing grooves 211 are flush with the upper end face of the tray 22, the tray 22 supports the lenses in the fixing grooves 211, the lenses are fixed when the fixing disc is convenient to use, the tray 22 is a honeycomb-shaped stainless steel plate, the honeycomb-shaped structure prevents the coating liquid from rising and affecting the coating effect, the tray 22 with the honeycomb-shaped structure can stir air inside the coating box main body 1 when rotating, and the distribution uniformity of the coating liquid is improved.

Referring to fig. 3, the sleeve 14 is a cylindrical tubular structure, the sleeve 14 is provided with a sliding groove 141, the connecting shaft 212 is welded with the sliding block 2121, the connecting shaft 212 and the sleeve 14 are in sliding connection with the sliding groove 141 through the sliding block 2121 in a matching manner, the connecting shaft 212 and the sleeve 14 in the sliding connection facilitate quick installation and disassembly of the fixing device 2, the assembling speed of the device is greatly improved, the sliding groove 141 is a J-shaped notch, the sliding block 2121 is a cylindrical bump, and the sliding block 2121 slides into the bottom of the sliding groove 141 to enable the connecting shaft 212 and the sleeve 14 to be fixed in an interlocking manner.

Referring to fig. 4, a sliding hole 2122 is formed in the lower end surface of the connecting shaft 212, a piston 221 is welded at the center of the upper end surface of the tray 22, the piston 221 is inserted into the sliding hole 2122 and is connected with the sliding hole 2122 in a sliding and rotating manner, the tray 22 connected in a sliding manner enables the tray 22 to move up and down, when the tray is required to support a lens, the tray slides to the top of the sliding hole 2122 to lift the lens, when the tray is not required to support the lens, the bottom of the sliding hole 2122 is prevented from being affected by blocking the lens, the depth of the sliding hole 2122 is greater than the length of the piston 221, the sliding hole 2122 is connected with the piston 221 in a sealing manner, a negative pressure environment is formed between the upper end surface of the sliding hole 2122 and the lower end surface of the piston 221, the piston 221 is inserted into the top of the sliding hole 2122 to lift the lens, when the apparatus is in use, a vacuum environment is formed in the coating box main body 1, the piston 221 slides downward, thereby separating the tray 22 from the fixed tray 21, and the sliding hole 2122 are separated due to the negative pressure, the fixed rubber ring 214 is preferentially expanded by the positive pressure, and then the piston 221 is separated from the slide hole 2122.

Referring to fig. 5, the upper end surface of the positioning block 222 is a spherical structure, and the fixing groove 211 coincides with the top view center of the positioning block 222, so that after the lens is placed in the fixing groove 211, the lower end surface of the lens is attached to the positioning block 222, and thus the top view center of the lens coincides with the top view center of the fixing groove 211, the distances between each point of the side end surface of the lens and the inner end surface of the fixing groove 211 are equal, and the stability of fixing is improved.

Referring to fig. 5, a rubber sleeve groove 213 is formed in a side end surface of the fixing groove 211, the rubber sleeve groove 213 is an annular groove opening, the rubber sleeve groove 213 is connected to the fixing groove 211 in a penetrating manner, a fixing rubber ring 214 is disposed in the rubber sleeve groove 213, an annular hollow structure of the fixing rubber ring 214 is provided, air is filled in the fixing rubber ring 214, the fixing rubber ring 214 is compressed in the rubber sleeve groove 213 at normal pressure, when the apparatus operates, a vacuum negative pressure is formed in the coating box main body 1, so that the air pressure inside the fixing rubber ring 214 is greater than the external air pressure, the fixing rubber ring 214 expands outwards to press the side end surface of the lens, and the lens is fixed in the fixing groove 211, and the fixing rubber ring 214 is made of natural latex and has high material strength, large elasticity and uniform thickness.

Referring to fig. 5, the upper end surface of the rubber sleeve groove 213 is connected with the access cover 215 through a screw thread, the outer end surface of the access cover 215 is provided with an external screw thread, the side end surface of the rubber sleeve groove 213 is provided with an internal screw thread, the access cover 215 and the rubber sleeve groove 213 are connected through the internal screw thread and the external screw thread in a matching screw thread manner, the access cover 215 is convenient to overhaul and replace the fixed rubber ring 214, and the screw thread connection prevents the fixed rubber ring 214 from jacking up the access cover 215 in a negative pressure state.

The working principle of the scheme is as follows: when the invention is used, the fixing device 2 is upwards supported and rotates clockwise, the fixing device 2 is taken down, then the lenses are sequentially placed in the fixing grooves 211, the connecting shaft 212 is aligned with the sleeve 14 and inserted into the sleeve 14, the slider 2121 slides along the slide groove 141 to the bottom of the slide groove 141 to interlock the fixing device 2 with the sleeve 14, then the coating liquid is poured into a coating liquid containing box 13, the vacuum pumping port 12 is connected with an external vacuum pump, the interior of the coating box main body 1 is vacuumized, and as the air pressure in the coating box main body 1 is reduced, the fixed rubber ring 214 in the rubber sleeve groove 213 expands outwards, thereby pressing the side end surface of the lens to fix the lens, when the air pressure in the coating box body 1 is less than the air pressure in the slide hole 2122, the piston 221 slides downwards along the slide hole 2122, then the motor 11 is started to drive the fixing device 2 to rotate, so that the coating liquid is volatilized uniformly and is deposited on the upper end surface and the lower end surface of the lens to form a coating.

The lens fixing device fixes the lens by the expansion of the fixing rubber ring 214 under the negative pressure condition, has simple structure, firm structure, lower cost and lower occupied space, greatly increases the surface space utilization rate of the fixing device 2, and the lens is uniformly transferred by the fixing rubber ring 214 under the centrifugal force in the rotation process of the fixing frame, thereby avoiding the lens from falling off, and the fixing device 2 is convenient to rapidly disassemble and assemble through the structures of the sleeve 14 and the connecting shaft 212 which are connected in a sliding way, thereby greatly improving the lens installation efficiency.

Claims

1. The utility model provides a coating equipment of optical lens, includes coating film case main part (1), its characterized in that: the upper end of coating film case main part (1) is provided with motor (11), the lower extreme of motor (11) is provided with sleeve (14), lens fixing device (2) have been hung to the lower extreme of sleeve (14), fixing device (2) comprise fixed disk (21) and tray (22), fixed disk (21) and tray (22) sliding connection, the center of fixed disk (21) is provided with even axle (212), even axle (212) insert in sleeve (14) with sleeve (14) fixed connection, be provided with fixed slot (211) on fixed disk (21), the up end of tray (22) is provided with locating piece (222), the interior terminal surface in the bottom of coating film case main part (1) is provided with coating film liquid and holds case (13), the top of coating film case main part (1) is provided with vacuum pumping hole (12).

2. The apparatus for coating an optical lens according to claim 1, wherein: the sleeve (14) is of a cylindrical tubular structure, a sliding groove (141) is formed in the sleeve (14), a sliding block (2121) is arranged on the connecting shaft (212), and the connecting shaft (212) and the sleeve (14) are in matched sliding connection with the sliding groove (141) through the sliding block (2121).

3. The apparatus for coating an optical lens according to claim 2, wherein: the sliding groove (141) is a J-shaped notch, and the sliding block (2121) is a cylindrical lug.

4. The apparatus for coating an optical lens according to claim 1, wherein: the fixing groove (211) is a plurality of circular notches, the fixing groove (211) is symmetrical about the overlooking circle center of the fixing disc (21), and the lower end face of the fixing groove (211) is flush with the upper end face of the tray (22).

5. The apparatus for coating an optical lens according to claim 1, wherein: the upper end surface of the positioning block (222) is of a spherical structure, and the fixing groove (211) is superposed with the top view center of the positioning block (222).

6. The apparatus for coating an optical lens according to claim 1, wherein: the rubber sleeve is characterized in that a rubber sleeve groove (213) is formed in the side end face of the fixing groove (211), the rubber sleeve groove (213) is an annular groove opening, the rubber sleeve groove (213) is connected with the fixing groove (211) in a penetrating mode, a fixing rubber ring (214) is arranged in the rubber sleeve groove (213), an annular hollow structure of the fixing rubber ring (214) is formed, and air is filled in the fixing rubber ring (214).

7. The apparatus for coating an optical lens according to claim 6, wherein: the fixed rubber ring (214) is made of natural latex.

8. The apparatus for coating an optical lens according to claim 6, wherein: the upper end face of the rubber sleeve groove (213) is provided with an access cover (215), the outer end face of the access cover (215) is provided with an external thread, the side end face of the rubber sleeve groove (213) is provided with an internal thread, and the access cover (215) is in threaded connection with the rubber sleeve groove (213) through the matching of the internal thread and the external thread.

9. The apparatus for coating an optical lens according to claim 1, wherein: the lower end face of the connecting shaft (212) is provided with a sliding hole (2122), the center of the upper end face of the tray (22) is provided with a piston (221), and the piston (221) is inserted into the sliding hole (2122) and is connected with the sliding hole (2122) in a sliding and rotating mode.

10. The apparatus for coating an optical lens according to claim 1, wherein: the tray (22) is a honeycomb stainless steel plate.