CN211170879U

CN211170879U - Vacuum coating machine

Info

Publication number: CN211170879U
Application number: CN201921926990.6U
Authority: CN
Inventors: 张新岳
Original assignee: Shenzhen Ruihong Plastic Hardware Coating Technology Co ltd
Current assignee: Shenzhen Ruihong Plastic Hardware Coating Technology Co ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-08-04
Anticipated expiration: 2029-11-08

Abstract

The utility model discloses a vacuum coating machine, concretely relates to vacuum coating equipment field, including the vacuum coating machine main part, mounting groove and gas vent have been seted up respectively to the inside of vacuum coating machine main part, and the inside of mounting groove is linked together with the inside of vacuum coating machine main part and gas vent respectively. The utility model discloses a gas vent is kept away from to driving the sealed cowling to the drawbar, make the sealed cowling pass through retainer plate compression reset spring, the gas vent is in the open mode this moment, and when accomplishing the evacuation, through loosening the traction to the traction lever, make and move to the one end of gas vent position through the retainer plate under reset tensile effect at reset spring, until the inner wall of rubber circle and the corresponding gas vent position of mounting groove closely laminate, make the gas vent be in closed state and leakproofness better, it is good to realize gas vent department's leakproofness, make the gas vent department leak after having taken out the vacuum, thereby the purpose of the quality of product has been improved.

Description

Vacuum coating machine

Technical Field

The utility model relates to a vacuum coating equipment field, more specifically say, the utility model relates to a vacuum coating machine.

Background

With the rapid development of society, in order to improve the durability of a workpiece, a coating film is used as a way to form a dense protective layer on the surface of the workpiece, and the process is continuously improved.

As is well known, vacuum deposition refers to a method of forming a thin film by heating a metal or non-metal material under a high vacuum condition to evaporate and condense it on the surface of a plated article (metal, semiconductor or insulator). Vacuum coating is also used more and more frequently because of the way it can coat objects more uniformly.

The existing vacuum coating is mainly completed by a vacuum coating machine, and the vacuum coating machine approximately comprises: the device comprises a coating cylinder, a cracking chamber, an evaporation chamber and a vacuum-pumping device. The coating cylinder is provided with a containing cavity for placing a workpiece to be coated, the evaporation chamber is used for evaporating a coating material, the cracking is suitable for cracking the coating material, and the vacuumizing device is used for vacuumizing the coating cylinder. When the vacuum coating machine works, the vacuumizing device is firstly used for vacuumizing to enable all the interiors of the coating barrel, the evaporation chamber and the cracking chamber to be in a vacuum state, then the coating material is evaporated by the evaporation chamber, the evaporated coating material enters the cracking chamber, the cracking chamber is used for cracking the evaporated coating material, and the cracked coating material enters the coating barrel, so that a layer of coating material is attached to the surface of a workpiece to be coated in the coating barrel, and the coating purpose is achieved.

However, in the prior art, when the vacuum pumping device is in actual use, the exhaust port is inconvenient to rapidly close after vacuum pumping is finished, the air leakage phenomenon is easy to occur due to insufficient sealing performance of the exhaust port, and the product quality is affected.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, the embodiment of the utility model provides a vacuum coating machine, the utility model aims to solve the technical problems that: the product quality is influenced by insufficient sealing performance of the exhaust port.

In order to achieve the above object, the utility model provides a following technical scheme: a vacuum coating machine comprises a vacuum coating machine main body, wherein the inside of the vacuum coating machine main body is respectively provided with a mounting groove and an exhaust port, the inside of the mounting groove is respectively communicated with the inside of the vacuum coating machine main body and the exhaust port, the inside of the mounting groove corresponding to the exhaust port is provided with a sealing component, the inside of the mounting groove is provided with a driving component, the sealing component comprises a support frame, the support frame is fixedly connected with the inner wall of the mounting groove corresponding to the exhaust port, one end of the support frame far away from the exhaust port is fixedly connected with a fixed disc, one end of the fixed disc close to the exhaust port is fixedly connected with a return spring, one end of the return spring far away from the fixed disc is fixedly connected with a fixed ring, one end of the fixed ring far away from the return spring, and the end of the rubber ring close to the exhaust port is movably attached to the inner wall of the mounting groove, and the end of the sealing cover far away from the exhaust port is fixedly connected with a traction rod.

The sealed cowling is pulled through the traction rod, the sealed cowling is compressed by the fixing ring and is reset spring, the sealed cowling drives the rubber ring to keep away from the inner wall of the corresponding exhaust port of the installation groove, the exhaust port is in an open state, when the vacuumizing is completed, the traction on the traction rod is loosened, the fixing ring is driven to move towards one end of the exhaust port under the action of the reset spring, the fixing ring is driven to move towards one end of the exhaust port, the rubber ring is tightly attached to the inner wall of the corresponding exhaust port of the installation groove until the rubber ring is tightly attached to the inner wall of the corresponding exhaust port of the installation groove, and the exhaust.

In a preferred embodiment, a vacuum pump is fixedly connected to one end of the inner wall of the mounting groove, and an output end of the vacuum pump penetrates through and extends to the outside of the vacuum coater main body, so that the vacuum pump can conveniently extract air inside the vacuum coater main body through the mounting groove and the exhaust port.

In a preferred embodiment, the surface of the fixing ring close to the return spring is provided with an annular groove, and one end of the return spring far away from the fixing plate is fixedly connected to the inner wall of the annular groove of the fixing ring, so that the connection between the fixing ring and the return spring is more stable through the annular groove arranged on the surface of the fixing ring.

In a preferred embodiment, the sealing cover is of a conical structure, one end, close to the exhaust port, of the sealing cover is of an arc-shaped structure, the inner wall of the arc-shaped structure of the sealing cover is in sliding connection with the surface of the fixing ring, the fixing ring is matched with the arc-shaped structure of the sealing cover, so that the fixing ring can drive the sealing cover to move better, the sealing cover is matched with the rubber ring to be tightly attached to the inner wall of the corresponding exhaust port of the mounting groove, and the purpose of good sealing performance is achieved.

In a preferred embodiment, the drive assembly includes the circle of rotating, the circle of rotating passes through the bearing and rotates the inner wall of connecting at the mounting groove, the quantity of circle of rotating is two, and two circles of rotating use the horizontal axis of mounting groove central point to set up as symmetry axis symmetry for can drive the centre of a circle that fixed pole used the drive circle through two circles of rotating and stabilize the rotation as the center of rotation.

In a preferred embodiment, two the one end fixedly connected with fixed round bar of rotation circle opposite face, and the surface of fixed round bar cup joints the movable frame, and the one end fixed connection that the sealed cowling was kept away from to the surface of movable frame and traction lever for when two rotation circles drive fixed round bar and use the centre of a circle of drive circle as the rotation center and stably rotate, can make fixed round bar drive the movable frame and do the linear motion of keeping away from or being close to the gas vent position, thereby make the movable frame drive the traction lever and do the linear motion that is close to or keeps away from the gas vent.

In a preferred embodiment, one end of each of the two opposite surfaces of the rotating ring is fixedly connected with a driving ring, the surface of each driving ring is meshed with a driving rack, one end of each driving rack is fixedly connected with a driving rod through a connecting block, each driving rod penetrates through the main body of the vacuum coating machine, and one end of each driving rod, which is far away from the corresponding driving rack, is fixedly connected with a piston, so that when the piston drives the corresponding driving rack to move left and right through the corresponding driving rod, the driving rack drives the corresponding rotating ring to rotate through the corresponding driving ring.

In a preferred embodiment, a piston cavity is formed in the vacuum coater main body, the inner wall of the piston cavity is movably connected with the surface of the piston, one end of the piston is fixedly connected with a damping spring, the damping spring is fixedly connected with one end of the inner wall of the piston cavity, a first communicating pipe and a second communicating pipe are embedded in the vacuum coater main body in a penetrating manner, a three-way valve is fixedly connected between the first communicating pipe and the second communicating pipe, and the other end of the three-way valve is fixedly connected with a third communicating pipe, when the vacuum pump pumps away air in the inner wall of the mounting groove, negative pressure is generated in the vacuum coater main body and the interior of the piston cavity, the seal cover can extrude the reset spring through the fixing ring and open the exhaust port under the action of the negative pressure, and the piston can move towards one end of the vacuum pump under the action of the negative pressure, and make the piston pass through the actuating lever and drive the one end removal of drive rack to the vacuum pump, and make when drive rack removes through drive rack cooperation drive circle, can make drive rack drive the rolling circle through the drive circle and rotate, two rolling circles drive fixed round bar and use the centre of a circle of drive circle as the stable rotation of center of rotation, can make fixed round bar drive the traction lever through the movable frame and keep away from the gas vent, thereby make the traction lever drive sealed cowling and keep away from the gas vent, make when vacuum coating machine main part inside and the inside negative pressure effort of mounting groove is lower, the gas vent still is in the open mode.

In a preferred embodiment, the inside of the first communicating pipe is communicated with the inside of the mounting groove, the inside of the second communicating pipe is communicated with the inside of the piston chamber, one end of the third communicating pipe, which is away from the three-way valve, is communicated with the outside, when the vacuum pumping work is performed, the second communicating pipe is communicated with the third communicating pipe through the third communicating pipe, the first communicating pipe is in a closed state, the piston is moved to one end of the vacuum pump under the negative pressure, when the vacuum pumping is completed, the inside of the first communicating pipe is communicated with the inside of the second communicating pipe through the third communicating pipe, the first communicating pipe is in a closed state, the first communicating pipe is communicated with the second communicating pipe, the air pressure inside the piston chamber is the same as the air pressure inside the mounting groove, that is, the negative pressure does not exist inside the piston chamber, and the piston is returned to an initial state under the action of the damping spring, and the piston drives one end of the driving rack far away from the vacuum pump to move through the driving rod, and the piston is matched with the driving ring so as to enable the rotating ring to rotate reversely, so that the rotating ring is matched with the fixed round rod, the movable frame and the traction rod to drive the sealing cover to move towards one end of the exhaust port until the rubber ring is tightly attached to one end of the mounting groove corresponding to the exhaust port, and the exhaust port is in a closed state at the moment.

The utility model discloses a technological effect and advantage:

1. the sealing cover is driven to be far away from the exhaust port through the traction rod, the sealing cover is enabled to compress the return spring through the fixing ring, the exhaust port is in an open state at the moment, when the vacuumizing is completed, the traction rod is loosened, the sealing cover is driven to move towards one end of the exhaust port through the fixing ring under the action of the return tension of the return spring until the rubber ring is tightly attached to the inner wall of the installation groove corresponding to the exhaust port, the exhaust port is in a closed state and is good in sealing performance, the sealing performance of the exhaust port is good, the exhaust port is enabled not to leak air after the vacuumizing is completed, and therefore the quality of a product is improved;

2. when air on the inner wall of the mounting groove is pumped away by the vacuum pump, negative pressure is generated in the piston cavity, the piston can move towards one end of the vacuum pump under the action of the negative pressure, the piston drives the driving rack to move towards one end of the vacuum pump through the driving rod, the driving rack drives the rotating ring to rotate through the driving ring, the fixed round rod drives the traction rod to keep away from the exhaust port through the movable frame, so that the traction rod drives the sealing cover to keep away from the exhaust port, when the negative pressure acting force between the inside of the vacuum coating machine main body and the inside of the mounting groove is low, the exhaust port is still in an open state, therefore, the exhaust port is not opened by the negative pressure in the vacuum coating machine main body, when the inside of the vacuum coating machine main body approaches to vacuum, the exhaust port is still in the open state, and a perfect vacuum state is convenient to form, so that the exhaust port is still in an open state when the interior of the vacuum coating machine body approaches to vacuum, thereby being convenient for forming a perfect vacuum state.

Drawings

Fig. 1 is a partial front sectional view of the overall structure of the present invention.

Fig. 2 is a front sectional view of the sealing assembly structure of the present invention.

Fig. 3 is a schematic structural view of the sealing cover of the present invention.

Fig. 4 is a side sectional view of the driving assembly structure of the present invention.

Fig. 5 is a front view of the rotating ring structure of the present invention.

The reference signs are: 1. a vacuum coating machine main body; 2. mounting grooves; 3. an exhaust port; 4. a seal assembly; 41. a support frame; 42. fixing the disc; 43. a return spring; 44. a stationary ring; 45. a sealing cover; 46. a rubber ring; 47. a draw bar; 5. a drive assembly; 51. rotating the ring; 52. a drive coil; 53. a drive rack; 54. fixing the round rod; 55. a movable frame; 56. a drive rod; 57. a piston; 58. a piston cavity; 59. a damping spring; 60. a first communication pipe; 61. a second communicating pipe; 62. a third communicating pipe; 63. a three-way valve; 6. a vacuum pump.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a vacuum coating machine, which comprises a vacuum coating machine main body 1, wherein the inside of the vacuum coating machine main body 1 is respectively provided with an installation groove 2 and an exhaust port 3, the inside of the installation groove 2 is respectively communicated with the inside of the vacuum coating machine main body 1 and the exhaust port 3, the inside of the installation groove 2 corresponding to the position of the exhaust port 3 is provided with a sealing component 4, the inside of the installation groove 2 is provided with a driving component 5, the sealing component 4 comprises a supporting frame 41, the supporting frame 41 is fixedly connected with the inner wall of the installation groove 2 corresponding to the position of the exhaust port 3, one end of the supporting frame 41 far away from the position of the exhaust port 3 is fixedly connected with a fixed disc 42, one end of the fixed disc 42 near the position of the exhaust port 3 is fixedly connected with a reset spring 43, one end of the reset spring 43 far away from the fixed disc 42 is, one end fixedly connected with rubber circle 46 that sealed cowling 45 is close to gas vent 3, and the one end that rubber circle 46 is close to gas vent 3 and the inner wall activity laminating of mounting groove 2, the one end fixedly connected with traction lever 47 that gas vent 3 was kept away from to sealed cowling 45.

One end of the inner wall of the mounting groove 2 is fixedly connected with a vacuum pump 6, and the output end of the vacuum pump 6 penetrates through and extends to the outside of the vacuum coating machine main body 1.

An annular groove is formed in the surface, close to the return spring 43, of the fixing ring 44, and one end, far away from the fixing disc 42, of the return spring 43 is fixedly connected to the inner wall of the annular groove of the fixing ring 44.

The sealing cover 45 is of a conical structure, one end, close to the exhaust port 3, of the sealing cover 45 is of a circular arc structure, and the inner wall of the circular arc structure of the sealing cover 45 is in sliding connection with the surface of the fixing ring 44.

The driving assembly 5 comprises a rotating ring 51, the rotating ring 51 is rotatably connected to the inner wall of the mounting groove 2 through a bearing, the number of the rotating ring 51 is two, and the two rotating rings 51 are symmetrically arranged by taking the horizontal axis of the central point of the mounting groove 2 as a symmetry axis.

One end of each of the opposite surfaces of the two rotating rings 51 is fixedly connected with a fixed round rod 54, the surface of each fixed round rod 54 is sleeved with a movable frame 55, and the surface of each movable frame 55 is fixedly connected with one end of the traction rod 47, which is far away from the sealing cover 45.

One end of each of the two opposite surfaces of the rotating ring 51 is fixedly connected with a driving ring 52, the surface of the driving ring 52 is engaged with a driving rack 53, one end of the driving rack 53 is fixedly connected with a driving rod 56 through a connecting block, the driving rod 56 penetrates through the vacuum coating machine main body 1, and one end of the driving rod 56 far away from the driving rack 53 is fixedly connected with a piston 57.

Piston chamber 58 has been seted up to vacuum coating machine main part 1's inside, and the surface swing joint of piston chamber 58's inner wall and piston 57, the one end fixedly connected with damping spring 59 of piston 57, damping spring 59 fixed connection is in the one end of piston chamber 58 inner wall, the inside of vacuum coating machine main part 1 runs through the embedding and has first communicating pipe 60 and second communicating pipe 61, fixedly connected with three-way valve 63 between first communicating pipe 60 and the second communicating pipe 61, and the other one end fixedly connected with third communicating pipe 62 of three-way valve 63.

The inside of the first communication pipe 60 is communicated with the inside of the mounting groove 2, the inside of the second communication pipe 61 is communicated with the inside of the piston chamber 58, and one end of the third communication pipe 62, which is far away from the three-way valve 63, is communicated with the outside.

As shown in fig. 1 to 5, the embodiment specifically is: the sealing cover 45 is pulled through the traction rod 47, the sealing cover 45 compresses the return spring 43 through the fixing ring 44, the sealing cover 45 drives the rubber ring 46 to be away from the inner wall of the position, corresponding to the exhaust port 3, of the mounting groove 2, the exhaust port 3 is in an open state, and when the vacuum pumping is completed, the traction rod 47 is loosened, so that the fixing ring 44 is driven to move towards one end of the exhaust port 3 under the action of the return spring 43, the fixing ring 44 drives the sealing cover 45 to move towards one end of the position, corresponding to the exhaust port 3, of the mounting groove 2 until the rubber ring 46 is tightly attached to the inner wall of the position, corresponding to the exhaust port 3, of the mounting groove 2, and the exhaust port 3 is in a closed state;

when the vacuum pump 6 evacuates the air in the mounting groove 2, negative pressure is generated inside the vacuum coater body 1 and inside the piston chamber 58, the sealing cover 45 extrudes the return spring 43 through the fixing ring 44 and opens the exhaust port 3 under the action of the negative pressure, the piston 57 moves towards one end of the vacuum pump 6 under the action of the negative pressure, the piston 57 drives the driving rack 53 to move towards one end of the vacuum pump 6 through the driving rod 56, and the driving rack 53 is matched with the driving ring 52, so that when the driving rack 53 moves, the driving rack 53 drives the rotating ring 51 to rotate through the driving ring 52, the two rotating rings 51 drive the fixing circular rods 54 to stably rotate with the center of the driving ring 52 as the rotation center, the fixing circular rods 54 drive the traction rods 47 to be far away from the exhaust port 3 through the movable frame 55, so that the traction rods 47 drive the sealing cover 45 to be far away from the exhaust port 3, when the negative pressure acting force between the interior of the vacuum coater main body 1 and the interior of the mounting groove 2 is low, the exhaust port 3 is still in an open state, and when the vacuum-pumping work is performed, the second communicating pipe 61 is communicated with the third communicating pipe 62 through the third communicating pipe 62, the first communicating pipe 60 is in a closed state, and the piston 57 moves towards one end of the vacuum pump 6 under the negative pressure, when the exhaust port 3 is closed when the vacuum-pumping is completed, the interior of the first communicating pipe 60 is communicated with the interior of the second communicating pipe 61 through the third communicating pipe 62, and the first communicating pipe 60 is in a closed state, at this time, the first communicating pipe 60 is communicated with the second communicating pipe 61, so that the air pressure in the piston cavity 58 is the same as the air pressure in the mounting groove 2, namely, the negative pressure does not exist in the piston cavity 58, under the action of the damping spring 59, the piston 57 is restored to an initial state, and the piston 57 drives the rack 53 to, thereby cooperation drive ring 52 makes rotation circle 51 antiport for rotation circle 51 cooperation fixed round bar 54, movable frame 55 and traction lever 47 drive sealed cowling 45 and move to the one end of gas vent 3, until rubber circle 46 hugs closely the one end at the corresponding gas vent 3 position of mounting groove 2, gas vent 3 is in the closure state this moment, and this embodiment has specifically solved the breach that exists among the prior art and has opened through the negative pressure by vacuum coating machine main part 1 is inside, and the vacuum state negative pressure that approaches is less not enough to open gas vent 3 problem.

The utility model discloses the theory of operation:

referring to the attached drawings 1-5 of the specification, the traction rod 47 drives the sealing cover 45 to be far away from the exhaust port 3, so that the sealing cover 45 compresses the return spring 43 through the fixing ring 44, the exhaust port 3 is in an open state at the moment, and when the vacuum pumping is completed, the traction rod 47 is loosened, so that the sealing cover 45 is driven to move towards one end of the position of the exhaust port 3 through the fixing ring 44 under the action of the return tension of the return spring 43 until the rubber ring 46 is tightly attached to the inner wall of the position of the mounting groove 2 corresponding to the exhaust port 3, the exhaust port 3 is in a closed state and has good sealing performance, the sealing performance of the exhaust port 3 is good, the exhaust port 3 is free of air leakage after the vacuum pumping is completed, and the quality of;

referring to the attached drawings 1-5 in the specification, when air in the inner wall of the mounting groove 2 is pumped away by the vacuum pump 6, negative pressure is generated in the piston cavity 58, the piston 57 moves towards one end of the vacuum pump 6 under the action of the negative pressure, the piston 57 drives the driving rack 53 to move towards one end of the vacuum pump 6 through the driving rod 56, the driving rack 53 drives the rotating ring 51 to rotate through the driving ring 52, the fixed round rod 54 drives the traction rod 47 to be far away from the exhaust port 3 through the movable frame 55, so that the traction rod 47 drives the sealing cover 45 to be far away from the exhaust port 3, when the negative pressure acting force between the inside of the vacuum coater body 1 and the inside of the mounting groove 2 is low, the exhaust port 3 is still in an open state, so that the exhaust port 3 is not opened by the negative pressure in the vacuum coater body 1, and the exhaust port 3 is still in an open state, so as to form a perfect vacuum state.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vacuum coating machine, includes vacuum coating machine main part (1), its characterized in that: the vacuum coating machine is characterized in that a mounting groove (2) and an exhaust port (3) are respectively formed in the vacuum coating machine main body (1), the mounting groove (2) is respectively communicated with the vacuum coating machine main body (1) and the exhaust port (3), a sealing component (4) is arranged in the position of the corresponding exhaust port (3) of the mounting groove (2), a driving component (5) is arranged in the mounting groove (2), the sealing component (4) comprises a supporting frame (41), the supporting frame (41) is fixedly connected to the inner wall of the position of the corresponding exhaust port (3) of the mounting groove (2), a fixed disc (42) is fixedly connected to one end, away from the exhaust port (3), of the supporting frame (41), a reset spring (43) is fixedly connected to one end, close to the exhaust port (3), of the fixed disc (42), and a fixed ring (44) is fixedly connected to one end, away from the fixed, one end sliding connection that reset spring (43) were kept away from in retainer plate (44) has sealed cowling (45), one end fixedly connected with rubber circle (46) that sealed cowling (45) are close to gas vent (3), and rubber circle (46) are close to the one end of gas vent (3) and the inner wall activity laminating of mounting groove (2), one end fixedly connected with traction lever (47) of gas vent (3) are kept away from in sealed cowling (45).

2. The vacuum coater according to claim 1, wherein: one end of the inner wall of the mounting groove (2) is fixedly connected with a vacuum pump (6), and the output end of the vacuum pump (6) penetrates through and extends to the outside of the vacuum coating machine main body (1).

3. The vacuum coater according to claim 1, wherein: an annular groove is formed in the surface, close to the return spring (43), of the fixing ring (44), and one end, far away from the fixing disc (42), of the return spring (43) is fixedly connected to the inner wall of the annular groove of the fixing ring (44).

4. The vacuum coater according to claim 1, wherein: the sealing cover (45) is of a conical structure, one end, close to the exhaust port (3), of the sealing cover (45) is of a circular arc structure, and the inner wall of the circular arc structure of the sealing cover (45) is in sliding connection with the surface of the fixing ring (44).

5. The vacuum coater according to claim 1, wherein: drive assembly (5) are including rotating circle (51), rotate circle (51) and rotate the inner wall of connecting in mounting groove (2) through the bearing, the quantity of rotating circle (51) is two, and two rotate circle (51) and use the horizontal axis of mounting groove (2) central point to set up as symmetry axis symmetry.

6. The vacuum coater according to claim 5, wherein: one end of each of the opposite surfaces of the two rotating rings (51) is fixedly connected with a fixed round rod (54), the surface of each fixed round rod (54) is sleeved with a movable frame (55), and the surface of each movable frame (55) is fixedly connected with one end, far away from the sealing cover (45), of the corresponding traction rod (47).

7. The vacuum coater according to claim 5, wherein: one end of each of the opposite surfaces of the two rotating rings (51) is fixedly connected with a driving ring (52), the surface of each driving ring (52) is meshed with a driving rack (53), one end of each driving rack (53) is fixedly connected with a driving rod (56) through a connecting block, each driving rod (56) penetrates through the vacuum coating machine main body (1), and one end, far away from the driving rack (53), of each driving rod (56) is fixedly connected with a piston (57).

8. The vacuum coater according to claim 7, wherein: piston chamber (58) have been seted up to the inside of vacuum coating machine main part (1), and the surface swing joint of the inner wall of piston chamber (58) and piston (57), one end fixedly connected with damping spring (59) of piston (57), damping spring (59) fixed connection is in the one end of piston chamber (58) inner wall, the inside of vacuum coating machine main part (1) is run through the embedding and is had first communicating pipe (60) and second communicating pipe (61), fixedly connected with three-way valve (63) between first communicating pipe (60) and second communicating pipe (61), and the other one end fixedly connected with third communicating pipe (62) of three-way valve (63).

9. The vacuum coater according to claim 8, wherein: the interior of the first communicating pipe (60) is communicated with the interior of the mounting groove (2), the interior of the second communicating pipe (61) is communicated with the interior of the piston cavity (58), and one end, far away from the three-way valve (63), of the third communicating pipe (62) is communicated with the exterior.