Lifting and rotating mechanism and multi-cavity vacuum coating machine

Abstract

The utility model discloses a lifting and rotating mechanism and a multi-chamber vacuum coating machine, the lifting and rotating mechanism comprises a lifting component and a lifting and rotating component which are oppositely arranged at the top and the bottom of a coating chamber and are used for clamping and lifting a rotating stand which rotates in place and driving the rotating stand to rotate. The clamping and lifting device can clamp and lift the rotating stand rotating in place and drive the rotating stand to rotate automatically, and the action mode is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to multi -chamber vacuum coating machine field. BACKGROUND

[0002] Multi -chamber vacuum coating machine refers to the coating machine of two or more vacuum chambers in series, and workpiece is installed on the rotating frame, and the rotating frame needs to automatically flow between different chambers, and after flowing in place, the rotating frame needs to rotate to realize uniform coating. The utility model aims at the rotating drive of the rotating frame that flows in place in the coating chamber and proposes a solution. SUMMARY

[0003] The utility model discloses a kind of lifting rotation mechanisms for driving rotating frame that flows in place automatically rotates in coating chamber.

[0004] The utility model discloses the technical scheme of the following to realize the purpose of the application: a lifting rotation mechanism, including lifting assembly and lifting rotation assembly, they are on the top, bottom of coating chamber, for the rotating frame that flows in place is clamped, lifted and driven to rotate;

[0005] The lifting assembly includes first fixed frame, first cylinder, first guide rail assembly, first movable frame, support shaft, rotating head.

[0006] The first cylinder is installed on the outside of the top or bottom of the coating chamber by the first fixed frame, the first movable frame is slidably installed on the first fixed frame by the first guide rail assembly controlled by the first cylinder, the support shaft is installed on the first movable frame, and the front end is sealed into the coating chamber, and the rotating head is rotatably installed on the front end of the support shaft.

[0007] The lifting rotation assembly includes second fixed frame, second cylinder, second guide rail assembly, second movable frame, lifting rotation shaft, motor and speed reducer.

[0008] The second cylinder is installed on the outside of the bottom or top of the coating chamber by the second fixed frame, the second movable frame is slidably installed on the second fixed frame by the second guide rail assembly controlled by the second cylinder, the motor, speed reducer and lifting rotation shaft are sequentially connected and installed on the second movable frame, and the front end of the lifting rotation shaft is sealed into the coating chamber.

[0009] In this embodiment, the lifting assembly and the lifting rotation assembly are mounted on the top and bottom of the coating chamber. Their respective cylinders are activated, causing their shafts to move towards each other and contact the top and bottom of the rotating frame in place, thereby clamping the rotating frame. Then, their cylinders are controlled to lift the rotating frame, causing its bottom surface to disengage from the bottom of the chamber. Then, the motor of the lifting rotation assembly is activated, driving the rotating frame to rotate. Since the ends of the shafts of the lifting assembly are equipped with rotating heads, they do not hinder the rotation of the rotating frame.

[0010] The support shaft of the lifting assembly is inserted into the coating chamber by means of an oil seal and / or a bellows seal;

[0011] The bellows sealing method is as follows: the bellows surrounds the support shaft, one end of which is sealed to the top or bottom of the coating chamber, and the other end is sealed to the shoulder of the support shaft.

[0012] As a preferred embodiment: the support shaft is hollow inside, and a water-cooling cavity is enclosed by a partition at one end near the rotating head, and the partition is provided with inlet and outlet water nozzles.

[0013] The preferred installation method for the lifting and rotating shaft of this utility model is as follows:

[0014] The lifting and rotating shaft is rotatably mounted in a bearing housing via an oil seal and a bearing that restricts its axial movement. The bearing housing is mounted on a mounting plate of the second movable frame via a flange on its periphery, and its rear end is connected to the main body of the reducer. Its front end is sealed by an oil seal and penetrates into the coating chamber.

[0015] This invention uses a bearing housing to bear the axial pressure of the lifting and rotating shaft, avoiding excessive bearing pressure output by the reducer. Two oil seals are used to seal the axial movement of the bearing housing and the rotation of the lifting and rotating shaft, respectively, which is the first layer of sealing.

[0016] As an improvement, the bearing housing is sealed to the mounting plate via a flange on its periphery and a sealing ring. A bellows is also surrounded by the bearing housing. One end of the bellows is sealed to the bottom or top of the coating chamber, and the other end is sealed to the mounting plate. The bellows and the sealing ring achieve a second layer of sealing.

[0017] The front end of the lifting and rotating shaft is a bolted end.

[0018] As an improvement, this utility model also includes a limiting screw, which is installed on the second fixed frame to form an abutment relationship with the second movable frame, limiting its lifting height, so that the first cylinder and the second cylinder always maintain an action force during the rotation of the rotating frame, thereby clamping the rotating frame.

[0019] The lifting assembly is located at the bottom of the coating chamber, and the lifting and rotating assembly is located at the top of the coating chamber.

[0020] The rotating head is mounted on the front end of the support shaft via ball bearings.

[0021] The lifting and rotating shaft is mounted in the bearing housing via a pair of tapered roller bearings arranged at the top and bottom.

[0022] This utility model also provides a multi-chamber vacuum coating machine, in which the lifting and rotating mechanism is used to clamp, lift and drive the rotating frame that has been transferred into place to rotate within the coating chamber. Beneficial effects

[0023] This invention can clamp, lift, and drive the rotating frame in place to rotate automatically, and the operation is stable and reliable. Attached Figure Description

[0024] Figure 1 , 2 This is a schematic diagram of the installation method of the lifting and rotating mechanism according to a preferred embodiment of the present utility model;

[0025] Figure 3 for Figure 1 Schematic diagram of the lifting assembly;

[0026] Figure 4 for Figure 1 A schematic diagram of the lifting and rotating assembly. Detailed Implementation

[0027] The lifting and rotating mechanism in this embodiment includes a lifting assembly 1 and a lifting and rotating assembly 2, such as... Figure 1 As shown, the lifting assembly 1 is located at the bottom of the coating chamber 3, and the lifting and rotating assembly 2 is located at the top of the coating chamber 3. They cooperate to clamp, lift, and drive the rotating frame 4, which has been rotated into place, to rotate. Figure 2 As shown.

[0028] like Figure 3 As shown, the lifting assembly 1 in this embodiment includes a fixed frame 11, a cylinder 12, a guide rail assembly 13, a movable frame 14, a support shaft 15, and a rotating head 16. The cylinder 12 is mounted on the bottom outer side of the coating chamber 3 via the fixed frame 11, and its output shaft is connected upwards to the movable frame 14 via a cylinder connector 17. The movable frame 14 is slidably mounted on the fixed frame 11 via the guide rail assemblies 13 on both sides. The guide rail assembly 13 consists of a guide rail 131 and a slider 132 thereon. The guide rail 131 is mounted on the fixed frame 11, and the slider 132 is connected to the movable frame 14. The support shaft 15 is mounted on the upper end of the movable frame 14, with its front end sealed and inserted into the coating chamber 3. The rotating head 16 is rotatably mounted on the front end of the support shaft 15 via a ball bearing 18.

[0029] In this embodiment, the support shaft 15 is inserted into the coating chamber 3 using a double-seal method to improve the reliability of the seal. For example... Figure 3 As shown, the support shaft 15 first passes through the coating chamber 3 through the oil seal 151, which is the first layer of sealing. Then, the second layer of sealing is achieved through the welded bellows 19 surrounding it. One end of the bellows 19 is sealed to the inner bottom of the coating chamber 3, and the other end is sealed to the shoulder of the support shaft 15.

[0030] Depend on Figure 3 It can also be seen that the support shaft 15 is hollow inside, and the end near the rotating head 16 is enclosed by a partition 151 to form a water-cooled cavity. The partition 151 is provided with inlet and outlet water nozzles 152.

[0031] The lifting component 1 operates as follows:

[0032] As the output shaft of cylinder 12 extends and retracts, it drives the movable frame 14 to slide up and down along the guide rail 131 on the fixed frame 11. The support shaft 15 installed on the movable frame 14 moves up and down accordingly, so that the disc-shaped rotating head 16 rests on the bottom of the rotating frame 4 and the central protrusion is inserted into the appropriate recess in the middle of the bottom of the rotating frame 4 or returns to its original position.

[0033] like Figure 4 As shown, the lifting and rotating assembly 2 in this embodiment includes a fixed frame 21, a cylinder 22, a guide rail assembly 23, a movable frame 24, a lifting and rotating shaft 25, a motor 26, and a reducer 27. The cylinder 22 is mounted on the outer side of the top of the coating chamber 3 via the fixed frame 21. Its output shaft is connected downwards to the movable frame 24 via a cylinder connector 28. The movable frame 24 is slidably mounted on the fixed frame 21 via the guide rail assemblies 23 on both sides. The guide rail assembly 23 consists of a guide rail 231 and a slider 232 on it. The guide rail 231 is mounted on the fixed frame 21, and the slider 232 is connected to the movable frame 24. The motor 26, reducer 27, and lifting and rotating shaft 25 are sequentially connected and mounted on the movable frame 24. The front end of the lifting and rotating shaft 25 is sealed and inserted into the coating chamber 3.

[0034] In this embodiment, the lifting and rotating shaft 25 is installed in the following manner:

[0035] The lifting and rotating shaft 25 is rotatably mounted in a bearing housing 29 via an oil seal 251 and upper and lower paired tapered roller bearings 252 that restrict its axial movement. The bearing housing 29 is mounted on a mounting plate 241 of the movable frame 24 by a sealing ring through its outer flange 291, and its rear end is connected to the main body of the reducer 27, while its front end is sealed and penetrates into the coating chamber 3 through an oil seal 293. A bellows 292 is also surrounded by the bearing housing 29, one end of which is sealed to the outer top of the coating chamber 3, and the other end is sealed to the mounting plate 241.

[0036] The axial pressure of the lifting rotating shaft 25 is borne by the bearing seat 29 in this embodiment, so as to avoid excessive bearing pressure of the output shaft of the speed reducer 27. Like the lifting assembly 1, two layers of seals are arranged here, the first layer of seals is to realize the rotation sealing of the bearing seat 29 and the lifting rotating shaft 25 by using two oil seals 293 and 251 respectively, and the second layer of seals is realized by the bellows 292 and the sealing ring.

[0037] As shown in Figure 4 It can be seen that in this embodiment, the front end of the lifting rotating shaft 25 is a replaceable end 253 connected by bolts.

[0038] In addition, the two sides of the cylinder 22 on the fixed frame 21 are respectively provided with limit screws 211, which are used to form a resisting relationship with the movable frame 24 to limit the lifting height, so that the cylinder 22 and the cylinder 11 always maintain the acting force (the cylinder 22 always pulls up, and the cylinder 11 always supports up) during the rotation of the rotating frame 4, so as to clamp the rotating frame 4. At this time, the bottom cylinder 22 has not risen to the highest (there is still a certain stroke), and since the rotating frame 4 is stopped by the limit screw 211 above, the rotating frame 4 at the bottom will have a continuous upward force to stop the rotating frame 4. The top cylinder 11 also has not been shrunk to the smallest (there is still a certain stroke), which ensures that the cylinder 11 can always pull the top transmission.

[0039] The action mode of the lifting rotating assembly 2 is as follows:

[0040] With the extension and retraction movement of the output shaft of the cylinder 22, the movable frame 24 is driven to slide down and up along the guide rail 231 on the fixed frame 21, and the motor 26, the speed reducer 27, the bearing seat 29 and the lifting rotating shaft 25 installed on the movable frame 24 move up and down as a whole, so that the front end of the lifting rotating shaft 25 is inserted into the recess matched in the middle of the rotating frame 4 or returned to the original position.

[0041] After the lifting assembly 1 and the lifting rotating assembly 2 cooperate to clamp the rotating frame 4 and lift it to a suitable height (so that the bottom of the rotating frame 4 is separated from the bottom of the chamber), the motor 26 of the lifting rotating assembly 2 is started, and the lifting rotating shaft 25 is driven by the speed reducer 27 to drive the rotating frame 4 to rotate between the rotating head 16 of the lifting assembly 1, so as to realize uniform coating. This embodiment can realize clamping, lifting and driving automatic rotation of the rotating frame 4 which rotates in place, and the action mode is stable and reliable.

[0042] The above embodiment is only a preferred embodiment of the present application, and should not be regarded as a limitation on the embodiments of the present application. For example, the positions of the lifting assembly 1 and the lifting and rotating assembly 2 in the above embodiment can be exchanged, the bellows 19 can also be arranged outside the coating chamber 3, the second layer of the lifting and rotating assembly 2 can also be similar to the lifting assembly 1, and the second layer of sealing is achieved by the bellows 293 and the shoulder structure on the bearing seat 29. In summary, the protection scope of the present application is subject to the claims of the present application, and various equivalent modifications of the above-described technical solutions made by those skilled in the art without creative labor should fall within the protection scope of the present application.

Claims

1. A lifting and rotating mechanism, characterized in that, It includes a lifting assembly and a lifting and rotating assembly, which are installed on the top and bottom of the coating chamber to clamp, lift and drive the rotating frame that has been transferred into place to rotate. The lifting assembly includes a first fixed frame, a first cylinder, a first guide rail assembly, a first movable frame, a support shaft, and a rotating head; The first cylinder is mounted on the outside of the top or bottom of the coating chamber via the first fixed frame. The first movable frame is mounted on the first fixed frame and controlled by the first cylinder to slide up and down via the first guide rail assembly. The support shaft is mounted on the first movable frame and its front end is sealed and inserted into the coating chamber. The rotating head is rotatably mounted on the front end of the support shaft. The lifting and rotating assembly includes a second fixed frame, a second cylinder, a second guide rail assembly, a second movable frame, a lifting and rotating shaft, a motor, and a reducer; The second cylinder is installed on the outside of the bottom or top of the coating chamber via the second fixed frame. The second movable frame is slidably installed on the second fixed frame via the second guide rail assembly controlled by the second cylinder. The motor, reducer, and lifting rotating shaft are connected in sequence and installed on the second movable frame. The front end of the lifting rotating shaft is sealed and inserted into the coating chamber.

2. The lifting and rotating mechanism according to claim 1, characterized in that, The support shaft of the lifting assembly is inserted into the coating chamber by means of an oil seal and / or a bellows seal; The bellows sealing method is as follows: the bellows surrounds the support shaft, one end of which is sealed to the top or bottom of the coating chamber, and the other end is sealed to the shoulder of the support shaft.

3. The lifting and rotating mechanism according to claim 1, characterized in that, The support shaft is hollow inside, and a water-cooling cavity is enclosed by a partition at one end near the rotating head. The partition is equipped with inlet and outlet water nozzles.

4. The lifting and rotating mechanism according to claim 1, characterized in that, The lifting and rotating shaft is rotatably mounted in a bearing housing via an oil seal and a bearing that restricts its axial movement. The bearing housing is mounted on a mounting plate of the second movable frame via a flange on its periphery, and its rear end is connected to the main body of the reducer. Its front end is sealed by an oil seal and penetrates into the coating chamber.

5. The lifting and rotating mechanism according to claim 4, characterized in that, The bearing housing is sealed to the mounting plate via a flange on its periphery and a sealing ring. A bellows is also surrounded by the bearing housing. One end of the bellows is sealed to the bottom or top outside of the coating chamber, and the other end is sealed to the mounting plate.

6. The lifting and rotating mechanism according to claim 4 or 5, characterized in that, The front end of the lifting and rotating shaft is a bolted end.

7. The lifting and rotating mechanism according to claim 4 or 5, characterized in that, The lifting and rotating assembly also includes a limiting screw, which is installed on the second fixed frame to form an abutment relationship with the second movable frame, limiting its lifting height, so that during the rotation of the rotating frame, the first cylinder and the second cylinder always maintain an action force to clamp the rotating frame.

8. The lifting and rotating mechanism according to claim 4, characterized in that, The lifting assembly is located at the bottom of the coating chamber, the lifting and rotating assembly is located at the top of the coating chamber, the rotating head is mounted on the front end of the support shaft via ball bearings, and the lifting and rotating shaft is mounted in the bearing housing via a pair of tapered roller bearings arranged above and below.

9. A multi-chamber vacuum coating machine, characterized in that, The coating chamber employs the lifting and rotating mechanism described in any one of claims 1 to 8 to clamp, lift, and drive the rotating frame that has been transferred into place.

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