CN214655206U

CN214655206U - Vacuum coating machine for producing optical lens

Info

Publication number: CN214655206U
Application number: CN202120943110.7U
Authority: CN
Inventors: 高鹏; 施亚琪; 马建华
Original assignee: Nanjing Epax Optics Co ltd
Current assignee: Nanjing Epax Optics Co ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-11-09
Anticipated expiration: 2031-04-30

Abstract

The utility model relates to a vacuum coating machine for producing optical lens piece is applied to vacuum coating machine technical field, and it includes the coating machine body, rotates on the interior roof of coating machine body and is connected with the rolling disc, one side that the rolling disc deviates from the roof of coating machine body rotates and is connected with a location section of thick bamboo, be equipped with the fixed disk that is used for fixed lens in the location section of thick bamboo, on the fixed disk was fixed in a location section of thick bamboo through the locating part, be equipped with on the coating machine body and be used for the drive rolling disc and a location section of thick bamboo pivoted driving piece simultaneously. This application rotates simultaneously through driving piece drive rolling disc and a location section of thick bamboo, can be so that the continuous production in position of lens changes, has increased the flexibility of lens at the coating process to lens and the abundant contact of coating material, and can increase the degree of consistency of coating material and lens contact, promoted the degree of fullness and the degree of consistency of lens coating film, be favorable to improving the quality of lens coating film.

Description

Vacuum coating machine for producing optical lens

Technical Field

The application relates to the technical field of vacuum coating machines, in particular to a vacuum coating machine for producing optical lenses.

Background

The vacuum coating film is mainly formed by heating a target material in a vacuum environment, so that components on the surface of the target material are evaporated in the form of atomic groups or ions and are deposited on the surface of a lens, and a film is formed in a film forming process.

Referring to fig. 8, the related art coating machine includes a coating machine body 1, an evaporator 11 for evaporating a coating material and a fixing disk 22 for fixing a lens are provided in the coating machine body 1, and the fixing disk 22 is fixed on an inner wall of the coating machine body 1. In the process of coating the lens, an operator places the lens on the fixed disk 22 and places the coating material in the evaporator 11, so that the evaporator 11 evaporates the coating material to realize the purpose of coating the lens.

In view of the above related technologies, the inventor believes that, in the coating process of the coating machine, the lens is always in the same position, which is inconvenient for the lens to be in full contact with the coating material, so that the contact fullness and uniformity of the lens and the coating material are insufficient, and the coating quality of the lens is affected.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the contact fullness and the uniformity of the lens and the coating material are not enough, the application provides a vacuum coating machine for producing optical lenses.

The application provides a vacuum coating machine for producing optical lens adopts following technical scheme:

the utility model provides a vacuum coating machine for producing optical lens piece, includes the coating machine body, rotates on the interior roof of coating machine body and is connected with the rolling disc, one side that the rolling disc deviates from the roof of coating machine body rotates and is connected with a location section of thick bamboo, be equipped with the fixed disk that is used for fixed lens in the location section of thick bamboo, the fixed disk is fixed in on the location section of thick bamboo through the locating part, is equipped with on the coating machine body and is used for the drive rolling disc and location section of thick bamboo pivoted driving piece simultaneously.

By adopting the technical scheme, in the process of coating the lens, an operator places the lens on the fixed disk and fixes the fixed disk in the positioning cylinder through the limiting piece so as to achieve the effect of fixing the lens; the operator starts the driving piece, so that the driving piece drives the rotating disc and the positioning barrel to rotate simultaneously, the positions of the lenses are continuously changed, the flexibility of the lenses in the film coating process is improved, the lenses are in full contact with the film materials, the film materials can be in uniform contact with the lenses, the filling degree and the uniformity of the film coating of the lenses are improved, and the quality of the film coating of the lenses is improved.

Optionally, the driving part comprises a driving motor fixed on the coating machine body, the rotating disc is fixed on an output shaft of the driving motor, a fixed gear is arranged between the rotating disc and the top wall of the coating machine body and fixed on the top wall of the coating machine body, the positioning cylinder is rotatably connected to the rotating disc through a rotating shaft, and a driven gear meshed with the fixed gear is arranged on one side, away from the positioning cylinder, of the rotating disc of the rotating shaft.

Through adopting above-mentioned technical scheme, the operator starts driving motor, driving motor drive rolling disc rotates, make the rolling disc drive a location section of thick bamboo and be circular motion along the circumferencial direction of fixed gear, driven gear produces the rotation round fixed gear this moment, and produce the rotation through a pivot drive location section of thick bamboo, in order to reach diversified drive location section of thick bamboo pivoted effect, thereby make the lens at the in-process of coating film, the continuous production change in position of lens, and then be convenient for coating film material and the abundant contact of lens, in order to improve the filling degree of coating film material and lens contact, and the degree of consistency of coating film material and lens contact has been improved, be favorable to improving the coating film quality of lens.

Optionally, the limiting member includes a supporting sleeve sleeved on the positioning cylinder, the positioning cylinder is provided with a plurality of limiting rods along the circumferential direction, and the fixing disc is provided with limiting grooves matched with the limiting rods along the circumferential direction; when the limiting rod is inserted into the limiting groove, one end of the limiting rod, which is far away from the fixed disc, abuts against the inner wall of the abutting sleeve.

Through adopting above-mentioned technical scheme, the operator is at the in-process of fixed lens, the operator is fixed in the fixed disk with the lens earlier, place the fixed disk in the location section of thick bamboo again, and make spacing groove and gag lever post align, the operator promotes to support the cover and contradict with the one end that the fixed disk was kept away from to the gag lever post this moment, make to support the cover and promote the gag lever post and peg graft in the spacing groove, when conflicting on the inner wall of supporting the cover until the gag lever post, the gag lever post supports tightly in the spacing groove, thereby the gag lever post carries on spacingly to the fixed disk, and then be convenient for quick convenient the operator fix the fixed disk, with the stability of being connected of increase fixed disk and location section of thick bamboo, and operator's reverse operation can be quick take out the fixed disk from the location section of thick bamboo, so that the operator takes the lens.

Optionally, the one end that a location section of thick bamboo deviates from the fixed disk under the gag lever post is equipped with the baffle, the gag lever post overlaps between baffle and a location section of thick bamboo and is equipped with the spring, the one end of spring is fixed in on the baffle, and the other end is fixed in on the location section of thick bamboo.

Through adopting above-mentioned technical scheme, the gag lever post is when removing to the spacing inslot, the gag lever post drives the baffle and compresses the spring, the spring has elastic restoring force by the compression, when the operator need take out the lens, operator's reverse movement supports tight cover, make the gag lever post break away from the location section of thick bamboo, the spring is under the effect of elastic restoring force this moment, the spring promotes the ejector pad and removes to one side of keeping away from the location section of thick bamboo, thereby make the quick spacing groove of following of gag lever post break away from, so that the quick convenient taking out of the fixed disk from the location section of thick bamboo of operator, make things convenient for the operator to take the lens.

Optionally, a clamping piece for fixing the lens is arranged on the fixed disk, the clamping piece includes an inner toothed ring, a through hole is formed in the fixed disk, an annular groove is formed in the side wall of the through hole along the circumferential direction, the inner toothed ring is rotatably arranged in the annular groove, the fixed disk is rotatably connected with a plurality of rotating gears meshed with the inner toothed ring in the through hole, the plurality of rotating gears are uniformly distributed along the circumferential direction of the through hole, clamping arms for clamping the lens are arranged on the plurality of rotating gears, a waist-shaped hole communicated with the annular groove is formed in the fixed disk, a shifting rod is arranged in the waist-shaped hole in a penetrating manner, the shifting rod is fixed on the inner toothed ring, a positioning rod is arranged at one end of the waist-shaped hole in the fixed disk, and a tension spring is connected to the positioning rod and the shifting rod at the same time; when the clamping arms abut against the lenses, the tension springs are in a contraction state.

By adopting the technical scheme, an operator can shift one clamping arm in the process of clamping the lens, so that the clamping arms drive the corresponding rotating gears to drive the inner gear ring to rotate, the inner gear ring drives the shifting lever to slide in the waist-shaped hole, the shifting lever stretches the tension spring, the tension spring stretches to have elastic contraction force, meanwhile, the inner gear ring drives a plurality of rotating gears to rotate together, so that a plurality of clamping arms move to one side far away from the center of the through hole at the same time, then an operator places the lens among the plurality of clamping arms, then an operator loosens the clamping arm to enable the tension spring to pull the gear ring to rotate reversely under the action of elastic contraction force, so that the gear ring drives a plurality of rotating gears to rotate reversely at the same time, so that a plurality of clamping arms approach to the lens at the same time, the lens clamping device has the advantages that the effect of clamping the lens is achieved, the stability of the lens on the fixed disc is improved, and the situation that the lens is separated from the fixed disc is reduced.

Optionally, one end of the clamping arm, which is far away from the rotating gear, is provided with a rubber roller.

Through adopting above-mentioned technical scheme, the arm lock is at the in-process of centre gripping lens, and the rubber roller is contradicted on the lens, and the rubber roller can increase the compliance between arm lock and the lens this moment to the effect of protection has been played to the lens, and then the condition that reduces arm lock wearing and tearing lens takes place.

Optionally, the inner wall of the positioning cylinder is provided with a guide rod along the vertical direction, and one side of the fixed disc facing the inner wall of the positioning cylinder is provided with a guide groove matched with the guide rod.

Through adopting above-mentioned technical scheme, the operator is when fixing the fixed disk or taking out the fixed disk, and the operator need promote the fixed disk and slide in a location section of thick bamboo, and the guide bar can restrict the removal of fixed disk is reverse through the guide way this moment to play the effect of direction to the fixed disk, and then increase the stability when fixed disk removes, so that the locating part carries out quick fixed to the fixed disk.

Optionally, a limiting plate is arranged on the inner wall of the positioning cylinder along the circumferential direction, and a magnet block is embedded in one side of the limiting plate opposite to the fixed disk; when the fixed disc is abutted to the limiting plate, the two magnet blocks attract each other.

Through adopting above-mentioned technical scheme, two magnet piece inter attraction can reach the effect of fixed disk to can fix the fixed disk in the twinkling of an eye that the locating part breaks away from the fixed disk, so that the operator is stable takes out the fixed disk from a location section of thick bamboo, reduced the fixed disk and taken place from the condition of landing in a location section of thick bamboo.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the driving piece drives the rotating disc and the positioning barrel to rotate simultaneously, so that the positions of the lenses can be changed continuously, the flexibility of the lenses in the coating process is improved, the lenses are in full contact with a coating material, the contact uniformity of the coating material and the lenses can be improved, the coating fullness and uniformity of the lenses are improved, and the coating quality of the lenses is improved;

2. the fixed disk can be fixed through the limiting piece so as to increase the connection stability of the fixed disk and the positioning cylinder;

3. the effect of centre gripping lens can be reached through the holder, increases the stability of lens on the fixed disk to the condition that the lens breaks away from the fixed disk takes place in the reduction.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying a driving member according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram for embodying a fixed disk in the embodiment of the present application.

Fig. 4 is a schematic structural diagram for embodying a limiting element according to an embodiment of the present application.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Fig. 6 is a schematic structural diagram for embodying the clamping member in the embodiment of the present application.

Fig. 7 is an enlarged schematic view of a portion B in fig. 6.

Fig. 8 is a schematic view of the overall structure of a coating machine according to the related art.

Description of reference numerals: 1. a film plating machine body; 11. an evaporator; 2. rotating the disc; 21. a positioning cylinder; 22. fixing the disc; 221. a limiting groove; 222. a through hole; 223. a ring groove; 224. a waist-shaped hole; 225. a guide groove; 23. a rotating shaft; 24. a guide bar; 25. a limiting plate; 26. a magnet block; 3. a drive member; 31. a drive motor; 32. fixing a gear; 33. a driven gear; 4. a limiting member; 41. abutting the sleeve; 411. a bevel; 42. a limiting rod; 43. a baffle plate; 44. a spring; 5. a clamping member; 51. an inner gear ring; 52. a rotating gear; 53. clamping arms; 54. a deflector rod; 55. positioning a rod; 56. a tension spring; 57. a rubber roller; 58. and (7) connecting the shafts.

Detailed Description

The present application is described in further detail below with reference to figures 1-7.

The embodiment of the application discloses a vacuum coating machine for producing optical lenses.

Referring to fig. 1 and 2, the vacuum coating machine comprises a coating machine body 1 and a rotating disc 2 rotatably connected to the inner top wall of the coating machine body 1, wherein the rotating disc 2 is a circular plate body. One side of the rotating disc 2, which deviates from the top wall of the film coating machine body 1, is rotatably connected with a positioning cylinder 21, the positioning cylinder 21 is a circular cylinder with an open end, and the positioning cylinder 21 is rotatably connected to the rotating disc 2 through a rotating shaft 23. And the number of the positioning cylinders 21 may be four, and the four positioning cylinders 21 are uniformly distributed in the circumferential direction of the rotary disk 2.

Referring to fig. 2 and 3, a driving member 3 for simultaneously driving the rotating disc 2 and the positioning cylinder 21 to rotate is arranged on the top wall of the coater body 1. The fixed disc 22 for fixing the lens is arranged in the positioning cylinder 21, the fixed disc 22 is fixed in the positioning cylinder 21 through the limiting piece 4, and the fixed disc 22 is provided with a clamping piece 5 for clamping the lens.

Referring to fig. 2 and 3, in the process of coating the lens, an operator firstly fixes the lens on the fixed disk 22 through the clamping member 5, then installs the fixed disk 22 into the positioning cylinder 21, and fixes the fixed disk 22 through the limiting member 4, so that the fixed disk 22 is fastened in the positioning cylinder 21. At this moment, an operator starts the driving part 3, so that the driving part 3 simultaneously drives the rotating disc 2 and the positioning cylinder 21 to rotate, and the positions of the lenses are continuously changed in the process of coating the lenses, so that the films can be fully contacted with the lenses, and the contact sufficiency degree of the films and the lenses is improved. Meanwhile, the contact uniformity of the lens and the coating material can be improved, and the coating quality of the lens by a coating machine is favorably improved.

Referring to fig. 1 and 2, the driving member 3 includes a driving motor 31 fixed on the top wall of the coater body 1, an output shaft of the driving motor 31 penetrates through the top wall of the coater body 1, and the rotating disc 2 is concentric with the output shaft of the driving motor 31 and fixed on the output shaft of the driving motor 31. A fixed gear 32 is arranged between the top wall of the film coating machine body 1 and the rotating disc 2, the fixed gear 32 is fixed on the inner top wall of the film coating machine body 1, and the fixed gear 32 and the rotating disc 2 are coaxial. The rotating shaft 23 is sleeved with a driven gear 33 meshed with the fixed gear 32 on one side of the rotating disc 2 away from the positioning cylinder 21, and the driven gear 33 is fixed on the rotating shaft 23.

An operator starts the driving motor 31, and the driving motor 31 drives the rotating disc 2 to rotate, so that the rotating disc 2 drives the positioning cylinder 21 to make a circular motion. At this time, the driven gear 33 rotates around the fixed gear 32, so that the driven gear 33 drives the positioning cylinder 21 to rotate, thereby achieving the effect of simultaneously driving the rotating disc 2 and the positioning cylinder 21 to rotate, and improving the flexibility of the lens in the film coating process so as to facilitate the sufficient contact between the lens and the film material.

Referring to fig. 4 and 5, the limiting member 4 includes a pressing sleeve 41 sleeved on the positioning tube 21, and an inclined surface 411 is disposed on a side of the pressing sleeve 41 away from the rotating disc 2 and close to the positioning tube 21. The positioning cylinder 21 is provided with a limiting rod 42 at one side of the abutting sleeve 41 departing from the rotating disc 2, and a plurality of limiting rods 42 are uniformly distributed along the circumferential direction of the positioning cylinder 21. The stop lever 42 is provided with a baffle 43 at one end close to the inner wall of the abutting sleeve 41, a spring 44 is sleeved on the stop lever 42 between the baffle 43 and the positioning cylinder 21, one end of the spring 44 is fixed on the baffle 43, and the other end is fixed on the positioning cylinder 21. Meanwhile, the fixed plate 22 is provided with an annular limiting groove 221 matched with the limiting rod 42 along the peripheral direction.

Referring to fig. 4 and 5, in the process of fixing the fixed platter 22, the operator places the fixed platter 22 in the positioning cylinder 21 and aligns the stopper groove 221 with the stopper rod 42. Then, the operator pushes the abutting sleeve 41 to approach the limiting rod 42, so that the blocking plate 43 abuts against the inclined surface 411. At this moment, the inclined surface 411 generates oblique thrust to the baffle 43 to push the baffle 43 to approach the positioning barrel 21, so that the baffle 43 pushes the limiting rod 42 to be inserted into the limiting groove 221, the limiting rod 42 limits the fixed disk 22 through the limiting groove 221, and the fixed disk 22 is fixed, so that an operator can fix the fixed disk 22 quickly and conveniently.

While the spring 44 is compressed by the shutter 43, the spring 44 is compressed to have an elastic restoring force. When an operator needs to take the fixed disk 22 out of the positioning cylinder 21, the operator pushes the abutting sleeve 41 to disengage from the stop plate 43, and at this time, the spring 44 pushes the stop plate 43 to drive the limiting rod 42 to disengage from the limiting groove 221 under the action of elastic recovery of the spring 44, so that the operator can take the fixed disk 22 out of the positioning cylinder 21 quickly and conveniently.

Referring to fig. 4, a guide rod 24 is fixedly connected to a side wall of the positioning cylinder 21, and the guide rod 24 is disposed along an axial direction of the positioning cylinder 21. The side wall of the fixed disk 22 along the circumferential direction is provided with a guide groove 225, and an operator needs to push the fixed disk 22 to slide along the axial direction of the positioning cylinder 21 in the process of dismounting the fixed disk 22. At this time, the guide rod 24 can limit the moving direction of the fixed disk 22 through the guide groove 225, so that the fixed disk 22 is guided, the stability of the fixed disk 22 during moving is further improved, the limiting groove 221 is aligned with the limiting rod 42 rapidly, and the fixed disk 22 is fixed by the limiting rod 42 conveniently.

Referring to fig. 4 and 5, a limiting plate 25 is disposed on an inner wall of the positioning cylinder 21 along a circumferential direction, and the limiting plate 25 is an annular plate. In the process of fixing the fixing plate 22, the operator pushes the fixing plate 22 to abut against the limiting plate 25. So that the stopper plate 25 positions the fixing plate 22 to facilitate quick alignment of the stopper groove 221 with the stopper rod 42. Meanwhile, one magnet block 26 is embedded in one side of the limiting plate 25 opposite to the fixed disk 22, the two magnet blocks 26 attract each other, and the two magnet blocks 26 are both annular.

Under the action force of the mutual attraction of the two magnet blocks 26, the limiting plate 25 can further fix the fixed disk 22, so that the fixed disk 22 can be fixed at the moment that the limiting rod 42 is separated from the limiting groove 221, an operator can take the fixed disk 22 out of the positioning cylinder 21 more stably, and the phenomenon that the fixed disk 22 slides out of the positioning cylinder 21 is reduced.

Referring to fig. 6 and 7, the clamping member 5 includes an inner ring gear 51, a rotating gear 52, a clamping arm 53, a rubber roller 57, a shift lever 54, a positioning rod 55 and a tension spring 56, a plurality of circular through holes 222 are formed in the fixed disk 22, five through holes 222 are uniformly distributed along the circumferential direction of the fixed disk, and one through hole 222 corresponds to one clamping member 5. The side wall of the through hole 222 is provided with a ring groove 223 along the circumferential direction, and the internal gear ring 51 is rotatably arranged in the ring groove 223. The rotating gear 52 is arranged in the through hole 222 and is rotatably connected to the fixed disk 22 through the connecting shaft 58, and the connecting shaft 58 is fixedly connected with the rotating gear 52. A plurality of rotating gears 52 are uniformly distributed along the circumferential direction of the through hole 222, the number of the rotating gears 52 can be four, and the four rotating gears 52 are all meshed with the inner gear ring 51.

Referring to fig. 6 and 7, one end of the clamping arm 53 is fixed to the connecting shaft 58, the other end of the clamping arm 53 extends toward the center of the through hole 222, and the rubber roller 57 is rotatably connected to one end of the clamping arm 53 away from the rotating gear 52. The upper end of the fixed disk 22 is provided with an arc-shaped waist-shaped hole 224, and the waist-shaped hole 224 is concentric with the inner gear ring 51. The shift lever 54 is inserted into the waist-shaped hole 224 and fixed on the inner gear ring 51, and the shift lever 54 is slidably disposed in the waist-shaped hole 224. The positioning rod 55 is fixed on the fixing plate 22, and the positioning rod 55 is located at one end of the waist-shaped hole 224 along the length direction. One end of the tension spring 56 is fixed to the shift lever 54, and the other end is fixed to the positioning rod 55. In a normal state, the tension spring 56 is in a contracted state, and the rubber roller 57 is close to the center of the through hole 222.

Referring to fig. 6 and 7, when an operator needs to fix the lens, the operator pulls one of the clamping arms 53 to move to a side away from the center of the through hole 222, so that the pulling lever 54 drives the rotating gear 52 to rotate clockwise through the connecting shaft 58. At this time, the rotating gear 52 drives the inner ring gear 51 to rotate clockwise, so that the inner ring gear 51 drives the other three rotating gears 52 to rotate clockwise at the same time, and the clamping arm 53 moves to one side away from the center of the through hole 222 at the same time. Simultaneously, the inner gear ring 51 drives the shift lever 54 to slide in the waist-shaped hole 224, so that the shift lever 54 stretches the tension spring 56, and the tension spring 56 stretches to have elastic contraction force.

The operator then places the lens between the four rubber rollers 57, at which point the tension spring 56, under the action of elastic contraction force, pulls the shift lever 54 towards the positioning lever 55, and the shift lever 54 drives the inner ring gear 51 to rotate counterclockwise. Make the inner ring gear 51 drive four rotating gear 52 anticlockwise rotations simultaneously to make four rubber roller 57 be close to the lens simultaneously, and support tightly on the lateral wall of lens, in order to reach the effect of fixed lens, increased the fastness between lens and fixed disk 22.

Rubber roller 57 is made by the rubber material, and rubber self is softer and have elasticity to can increase the weak degree between arm lock 53 and the lens, play the effect of protection to the lens, take place with the condition that reduces arm lock 53 wearing and tearing lens.

The application principle of the vacuum coating machine for producing the optical lens in the embodiment of the application is as follows: in the process of coating the lens, an operator clamps the lens on the fixed disc 22 through the clamping arms 53. Then, the operator puts the fixed disk 22 into the positioning cylinder 21, and makes the fixed disk 22 abut against the limiting plate 25, at this time, the limiting groove 221 aligns with the limiting rod 42, the operator pushes the abutting sleeve 41 to approach the limiting rod 42, so that the abutting sleeve 41 pushes the limiting rod 42 to be inserted into the limiting groove 221, and the effect of fixing the fixed disk 22 is achieved. Then, the operator starts the film coating machine and simultaneously starts the driving motor 31, so that the driving motor 31 simultaneously drives the rotating disc 2 and the positioning cylinder 21 to rotate in the film coating machine body 1, and the purpose of coating the lens is achieved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a vacuum coating machine for producing optical lens, includes coating machine body (1), its characterized in that: the coating machine comprises a coating machine body (1), wherein a rotating disc (2) is rotatably connected to the inner top wall of the coating machine body (1), one side, deviating from the top wall of the coating machine body (1), of the rotating disc (2) is rotatably connected with a positioning cylinder (21), a fixing disc (22) used for fixing a lens is arranged in the positioning cylinder (21), the fixing disc (22) is fixed on the positioning cylinder (21) through a limiting part (4), and a driving part (3) which is used for driving the rotating disc (2) and the positioning cylinder (21) to rotate simultaneously is arranged on the coating machine body (1).

2. A vacuum coating machine for producing optical lenses according to claim 1, characterized in that: the driving piece (3) comprises a driving motor (31) fixed on the film coating machine body (1), the rotating disc (2) is fixed on an output shaft of the driving motor (31), a fixed gear (32) is arranged between the rotating disc (2) and the top wall of the film coating machine body (1), the fixed gear (32) is fixed on the top wall of the film coating machine body (1), the positioning cylinder (21) is rotatably connected onto the rotating disc (2) through a rotating shaft (23), and a driven gear (33) meshed with the fixed gear (32) is arranged on one side, deviating from the positioning cylinder (21), of the rotating disc (2) through the rotating shaft (23).

3. A vacuum coating machine for producing optical lenses according to claim 1, characterized in that: the limiting piece (4) comprises a propping sleeve (41) sleeved on the positioning cylinder (21), a plurality of limiting rods (42) penetrate through the positioning cylinder (21) along the circumferential direction, and a limiting groove (221) matched with the limiting rods (42) is reversely formed in the fixed disc (22) along the circumferential direction;

when the limiting rod (42) is inserted into the limiting groove (221), one end of the limiting rod (42), which is far away from the fixed disc (22), abuts against the inner wall of the abutting sleeve (41).

4. A vacuum coating machine for producing optical lenses according to claim 3, characterized in that: the one end that a location section of thick bamboo (21) deviates from fixed disk (22) under gag lever post (42) is equipped with baffle (43), gag lever post (42) is equipped with spring (44) between baffle (43) and a location section of thick bamboo (21) cover, on the one end of spring (44) is fixed in baffle (43), the other end is fixed in on a location section of thick bamboo (21).

5. A vacuum coating machine for producing optical lenses according to claim 1, characterized in that: be equipped with holder (5) that are used for fixed lens on fixed disk (22), holder (5) are including internal tooth ring (51), through-hole (222) have been seted up on fixed disk (22), annular (223) have been seted up along the circumferencial direction to the lateral wall of through-hole (222), internal tooth ring (51) rotate and set up in annular (223), fixed disk (22) through-hole (222) internal rotation is connected with a plurality of and internal tooth ring (51) engaged with rotating gear (52), a plurality of rotating gear (52) are along the circumferencial direction evenly distributed of through-hole (222), a plurality of all be equipped with arm lock (53) that are used for centre gripping lens on rotating gear (52), set up communicating waist shape hole (224) with annular (223) on fixed disk (22), wear to locate driving lever (54) in waist shape hole (224), driving lever (54) are fixed in internal tooth ring (51), a positioning rod (55) is arranged at one end of the waist-shaped hole (224) of the fixed disc (22), and the positioning rod (55) and the shifting rod (54) are simultaneously connected with a tension spring (56);

when the clamping arms (53) are tightly pressed on the lens, the tension spring (56) is in a contraction state.

6. A vacuum coating machine for the production of optical lenses according to claim 5, characterized in that: and one end of the clamping arm (53) far away from the rotating gear (52) is provided with a rubber roller (57).

7. A vacuum coating machine for producing optical lenses according to claim 1, characterized in that: the inner wall of a positioning cylinder (21) is provided with a guide rod (24) along the vertical direction, and one side of the fixed disc (22) facing the inner wall of the positioning cylinder (21) is provided with a guide groove (225) matched with the guide rod (24).

8. A vacuum coating machine for producing optical lenses according to claim 1, characterized in that: a limiting plate (25) is arranged on the inner wall of the positioning cylinder (21) along the peripheral direction, and a magnet block (26) is embedded in one side of the limiting plate (25) opposite to the fixed disc (22);

when the fixed disc (22) is abutted against the limiting plate (25), the two magnet blocks (26) are mutually attracted.